/* POWER/PowerPC XCOFF linker support.
- Copyright 1995 Free Software Foundation, Inc.
+ Copyright 1995, 1996, 1997, 1998, 1999, 2000
+ Free Software Foundation, Inc.
Written by Ian Lance Taylor <ian@cygnus.com>, Cygnus Support.
This file is part of BFD, the Binary File Descriptor library.
#include "bfdlink.h"
#include "libbfd.h"
#include "coff/internal.h"
+#include "coff/xcoff.h"
#include "libcoff.h"
+#include "libxcoff.h"
/* This file holds the XCOFF linker code. */
#define STRING_SIZE_SIZE (4)
-/* In order to support linking different object file formats into an
- XCOFF format, we need to be able to determine whether a particular
- bfd_target is an XCOFF vector. FIXME: We need to rethink this
- whole approach. */
-#define XCOFF_XVECP(xv) \
- (strcmp ((xv)->name, "aixcoff-rs6000") == 0 \
- || strcmp ((xv)->name, "xcoff-powermac") == 0)
-
-/* Get the XCOFF hash table entries for a BFD. */
-#define obj_xcoff_sym_hashes(bfd) \
- ((struct xcoff_link_hash_entry **) obj_coff_sym_hashes (bfd))
-
-/* XCOFF relocation types. These probably belong in a header file
- somewhere. The relocations are described in the function
- _bfd_ppc_xcoff_relocate_section in this file. */
-
-#define R_POS (0x00)
-#define R_NEG (0x01)
-#define R_REL (0x02)
-#define R_TOC (0x03)
-#define R_RTB (0x04)
-#define R_GL (0x05)
-#define R_TCL (0x06)
-#define R_BA (0x08)
-#define R_BR (0x0a)
-#define R_RL (0x0c)
-#define R_RLA (0x0d)
-#define R_REF (0x0f)
-#define R_TRL (0x12)
-#define R_TRLA (0x13)
-#define R_RRTBI (0x14)
-#define R_RRTBA (0x15)
-#define R_CAI (0x16)
-#define R_CREL (0x17)
-#define R_RBA (0x18)
-#define R_RBAC (0x19)
-#define R_RBR (0x1a)
-#define R_RBRC (0x1b)
-
-/* The first word of global linkage code. This must be modified by
- filling in the correct TOC offset. */
-
-#define XCOFF_GLINK_FIRST (0x81820000) /* lwz r12,0(r2) */
-
-/* The remaining words of global linkage code. */
-
-static unsigned long xcoff_glink_code[] =
-{
- 0x90410014, /* stw r2,20(r1) */
- 0x800c0000, /* lwz r0,0(r12) */
- 0x804c0004, /* lwz r2,4(r12) */
- 0x7c0903a6, /* mtctr r0 */
- 0x4e800420, /* bctr */
- 0x0, /* start of traceback table */
- 0x000c8000, /* traceback table */
- 0x0 /* traceback table */
-};
-
-#define XCOFF_GLINK_SIZE \
- (((sizeof xcoff_glink_code / sizeof xcoff_glink_code[0]) * 4) + 4)
-
/* We reuse the SEC_ROM flag as a mark flag for garbage collection.
This flag will only be used on input sections. */
#define SEC_MARK (SEC_ROM)
-/* The ldhdr structure. This appears at the start of the .loader
- section. */
-
-struct internal_ldhdr
-{
- /* The version number: currently always 1. */
- unsigned long l_version;
- /* The number of symbol table entries. */
- bfd_size_type l_nsyms;
- /* The number of relocation table entries. */
- bfd_size_type l_nreloc;
- /* The length of the import file string table. */
- bfd_size_type l_istlen;
- /* The number of import files. */
- bfd_size_type l_nimpid;
- /* The offset from the start of the .loader section to the first
- entry in the import file table. */
- bfd_size_type l_impoff;
- /* The length of the string table. */
- bfd_size_type l_stlen;
- /* The offset from the start of the .loader section to the first
- entry in the string table. */
- bfd_size_type l_stoff;
-};
-
-struct external_ldhdr
-{
- bfd_byte l_version[4];
- bfd_byte l_nsyms[4];
- bfd_byte l_nreloc[4];
- bfd_byte l_istlen[4];
- bfd_byte l_nimpid[4];
- bfd_byte l_impoff[4];
- bfd_byte l_stlen[4];
- bfd_byte l_stoff[4];
-};
-
-#define LDHDRSZ (8 * 4)
-
-/* The ldsym structure. This is used to represent a symbol in the
- .loader section. */
-
-struct internal_ldsym
-{
- union
- {
- /* The symbol name if <= SYMNMLEN characters. */
- char _l_name[SYMNMLEN];
- struct
- {
- /* Zero if the symbol name is more than SYMNMLEN characters. */
- long _l_zeroes;
- /* The offset in the string table if the symbol name is more
- than SYMNMLEN characters. */
- long _l_offset;
- } _l_l;
- } _l;
- /* The symbol value. */
- bfd_vma l_value;
- /* The symbol section number. */
- short l_scnum;
- /* The symbol type and flags. */
- char l_smtype;
- /* The symbol storage class. */
- char l_smclas;
- /* The import file ID. */
- bfd_size_type l_ifile;
- /* Offset to the parameter type check string. */
- bfd_size_type l_parm;
-};
-
-struct external_ldsym
-{
- union
- {
- bfd_byte _l_name[SYMNMLEN];
- struct
- {
- bfd_byte _l_zeroes[4];
- bfd_byte _l_offset[4];
- } _l_l;
- } _l;
- bfd_byte l_value[4];
- bfd_byte l_scnum[2];
- bfd_byte l_smtype[1];
- bfd_byte l_smclas[1];
- bfd_byte l_ifile[4];
- bfd_byte l_parm[4];
-};
-
-#define LDSYMSZ (8 + 3 * 4 + 2 + 2)
-
-/* These flags are for the l_smtype field (the lower three bits are an
- XTY_* value). */
-
-/* Imported symbol. */
-#define L_IMPORT (0x40)
-/* Entry point. */
-#define L_ENTRY (0x20)
-/* Exported symbol. */
-#define L_EXPORT (0x10)
-
-/* The ldrel structure. This is used to represent a reloc in the
- .loader section. */
-
-struct internal_ldrel
-{
- /* The reloc address. */
- bfd_vma l_vaddr;
- /* The symbol table index in the .loader section symbol table. */
- bfd_size_type l_symndx;
- /* The relocation type and size. */
- short l_rtype;
- /* The section number this relocation applies to. */
- short l_rsecnm;
-};
-
-struct external_ldrel
-{
- bfd_byte l_vaddr[4];
- bfd_byte l_symndx[4];
- bfd_byte l_rtype[2];
- bfd_byte l_rsecnm[2];
-};
-
-#define LDRELSZ (2 * 4 + 2 * 2)
-
/* The list of import files. */
-struct xcoff_import_file
-{
+struct xcoff_import_file {
/* The next entry in the list. */
struct xcoff_import_file *next;
/* The path. */
const char *member;
};
-/* An entry in the XCOFF linker hash table. */
-
-struct xcoff_link_hash_entry
-{
- struct bfd_link_hash_entry root;
-
- /* Symbol index in output file. Set to -1 initially. Set to -2 if
- there is a reloc against this symbol. */
- long indx;
-
- /* If we have created a TOC entry for this symbol, this is the .tc
- section which holds it. */
- asection *toc_section;
-
- union
- {
- /* If we have created a TOC entry (the XCOFF_SET_TOC flag is
- set), this is the offset in toc_section. */
- bfd_vma toc_offset;
- /* If the TOC entry comes from an input file, this is set to the
- symbo lindex of the C_HIDEXT XMC_TC symbol. */
- long toc_indx;
- } u;
-
- /* If this symbol is a function entry point which is called, this
- field holds a pointer to the function descriptor. If this symbol
- is a function descriptor, this field holds a pointer to the
- function entry point. */
- struct xcoff_link_hash_entry *descriptor;
-
- /* The .loader symbol table entry, if there is one. */
- struct internal_ldsym *ldsym;
-
- /* The .loader symbol table index. */
- long ldindx;
-
- /* Some linker flags. */
- unsigned short flags;
- /* Symbol is referenced by a regular object. */
-#define XCOFF_REF_REGULAR (01)
- /* Symbol is defined by a regular object. */
-#define XCOFF_DEF_REGULAR (02)
- /* Symbol is defined by a dynamic object. */
-#define XCOFF_DEF_DYNAMIC (04)
- /* Symbol is used in a reloc being copied into the .loader section. */
-#define XCOFF_LDREL (010)
- /* Symbol is the entry point. */
-#define XCOFF_ENTRY (020)
- /* Symbol is called; this is, it appears in a R_BR reloc. */
-#define XCOFF_CALLED (040)
- /* Symbol needs the TOC entry filled in. */
-#define XCOFF_SET_TOC (0100)
- /* Symbol is explicitly imported. */
-#define XCOFF_IMPORT (0200)
- /* Symbol is explicitly exported. */
-#define XCOFF_EXPORT (0400)
- /* Symbol has been processed by xcoff_build_ldsyms. */
-#define XCOFF_BUILT_LDSYM (01000)
- /* Symbol is mentioned by a section which was not garbage collected. */
-#define XCOFF_MARK (02000)
- /* Symbol size is recorded in size_list list from hash table. */
-#define XCOFF_HAS_SIZE (04000)
- /* Symbol is a function descriptor. */
-#define XCOFF_DESCRIPTOR (010000)
-
- /* The storage mapping class. */
- unsigned char smclas;
-};
-
-/* The XCOFF linker hash table. */
-
-struct xcoff_link_hash_table
-{
- struct bfd_link_hash_table root;
-
- /* The .debug string hash table. We need to compute this while
- reading the input files, so that we know how large the .debug
- section will be before we assign section positions. */
- struct bfd_strtab_hash *debug_strtab;
-
- /* The .debug section we will use for the final output. */
- asection *debug_section;
-
- /* The .loader section we will use for the final output. */
- asection *loader_section;
-
- /* A count of non TOC relative relocs which will need to be
- allocated in the .loader section. */
- size_t ldrel_count;
-
- /* The .loader section header. */
- struct internal_ldhdr ldhdr;
-
- /* The .gl section we use to hold global linkage code. */
- asection *linkage_section;
-
- /* The .tc section we use to hold toc entries we build for global
- linkage code. */
- asection *toc_section;
-
- /* The .ds section we use to hold function descriptors which we
- create for exported symbols. */
- asection *descriptor_section;
-
- /* The list of import files. */
- struct xcoff_import_file *imports;
-
- /* Required alignment of sections within the output file. */
- unsigned long file_align;
-
- /* Whether the .text section must be read-only. */
- boolean textro;
-
- /* Whether garbage collection was done. */
- boolean gc;
-
- /* A linked list of symbols for which we have size information. */
- struct xcoff_link_size_list
- {
- struct xcoff_link_size_list *next;
- struct xcoff_link_hash_entry *h;
- bfd_size_type size;
- } *size_list;
-
- /* Magic sections: _text, _etext, _data, _edata, _end, end. */
- asection *special_sections[6];
-};
-
/* Information we keep for each section in the output file during the
final link phase. */
-struct xcoff_link_section_info
-{
+struct xcoff_link_section_info {
/* The relocs to be output. */
struct internal_reloc *relocs;
/* For each reloc against a global symbol whose index was not known
index of the TOC symbol is not known when the reloc was handled,
an entry is added to this linked list. This is not an array,
like rel_hashes, because this case is quite uncommon. */
- struct xcoff_toc_rel_hash
- {
- struct xcoff_toc_rel_hash *next;
- struct xcoff_link_hash_entry *h;
- struct internal_reloc *rel;
- } *toc_rel_hashes;
+ struct xcoff_toc_rel_hash {
+ struct xcoff_toc_rel_hash *next;
+ struct xcoff_link_hash_entry *h;
+ struct internal_reloc *rel;
+ } *toc_rel_hashes;
};
/* Information that we pass around while doing the final link step. */
-struct xcoff_final_link_info
-{
+struct xcoff_final_link_info {
/* General link information. */
struct bfd_link_info *info;
/* Output BFD. */
/* Symbol index of TOC symbol. */
long toc_symindx;
/* Start of .loader symbols. */
- struct external_ldsym *ldsym;
+ bfd_byte *ldsym;
/* Next .loader reloc to swap out. */
- struct external_ldrel *ldrel;
+ bfd_byte *ldrel;
/* File position of start of line numbers. */
file_ptr line_filepos;
/* Buffer large enough to hold swapped symbols of any input file. */
bfd_byte *external_relocs;
};
-static void xcoff_swap_ldhdr_in
- PARAMS ((bfd *, const struct external_ldhdr *, struct internal_ldhdr *));
-static void xcoff_swap_ldhdr_out
- PARAMS ((bfd *, const struct internal_ldhdr *, struct external_ldhdr *));
-static void xcoff_swap_ldsym_in
- PARAMS ((bfd *, const struct external_ldsym *, struct internal_ldsym *));
-static void xcoff_swap_ldsym_out
- PARAMS ((bfd *, const struct internal_ldsym *, struct external_ldsym *));
-static void xcoff_swap_ldrel_out
- PARAMS ((bfd *, const struct internal_ldrel *, struct external_ldrel *));
static struct bfd_hash_entry *xcoff_link_hash_newfunc
PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
+static boolean xcoff_get_section_contents PARAMS ((bfd *, asection *));
static struct internal_reloc *xcoff_read_internal_relocs
PARAMS ((bfd *, asection *, boolean, bfd_byte *, boolean,
struct internal_reloc *));
PARAMS ((bfd *, struct bfd_link_info *, boolean *));
static boolean xcoff_link_check_ar_symbols
PARAMS ((bfd *, struct bfd_link_info *, boolean *));
+static boolean xcoff_link_check_dynamic_ar_symbols
+ PARAMS ((bfd *, struct bfd_link_info *, boolean *));
static bfd_size_type xcoff_find_reloc
PARAMS ((struct internal_reloc *, bfd_size_type, bfd_vma));
static boolean xcoff_link_add_symbols PARAMS ((bfd *, struct bfd_link_info *));
static boolean xcoff_link_add_dynamic_symbols
PARAMS ((bfd *, struct bfd_link_info *));
+static boolean xcoff_mark_symbol
+ PARAMS ((struct bfd_link_info *, struct xcoff_link_hash_entry *));
static boolean xcoff_mark PARAMS ((struct bfd_link_info *, asection *));
static void xcoff_sweep PARAMS ((struct bfd_link_info *));
static boolean xcoff_build_ldsyms
struct bfd_link_order *));
static int xcoff_sort_relocs PARAMS ((const PTR, const PTR));
\f
-/* Routines to swap information in the XCOFF .loader section. If we
- ever need to write an XCOFF loader, this stuff will need to be
- moved to another file shared by the linker (which XCOFF calls the
- ``binder'') and the loader. */
-/* Swap in the ldhdr structure. */
+/* Routines to read XCOFF dynamic information. This don't really
+ belong here, but we already have the ldsym manipulation routines
+ here. */
-static void
-xcoff_swap_ldhdr_in (abfd, src, dst)
+/* Read the contents of a section. */
+
+static boolean
+xcoff_get_section_contents (abfd, sec)
bfd *abfd;
- const struct external_ldhdr *src;
- struct internal_ldhdr *dst;
+ asection *sec;
{
- dst->l_version = bfd_get_32 (abfd, src->l_version);
- dst->l_nsyms = bfd_get_32 (abfd, src->l_nsyms);
- dst->l_nreloc = bfd_get_32 (abfd, src->l_nreloc);
- dst->l_istlen = bfd_get_32 (abfd, src->l_istlen);
- dst->l_nimpid = bfd_get_32 (abfd, src->l_nimpid);
- dst->l_impoff = bfd_get_32 (abfd, src->l_impoff);
- dst->l_stlen = bfd_get_32 (abfd, src->l_stlen);
- dst->l_stoff = bfd_get_32 (abfd, src->l_stoff);
+
+ if (coff_section_data (abfd, sec) == NULL)
+ {
+ sec->used_by_bfd = bfd_zalloc (abfd,
+ sizeof (struct coff_section_tdata));
+ if (sec->used_by_bfd == NULL)
+ return false;
+ }
+
+ if (coff_section_data (abfd, sec)->contents == NULL)
+ {
+ coff_section_data (abfd, sec)->contents =
+ (bfd_byte *) bfd_malloc (sec->_raw_size);
+ if (coff_section_data (abfd, sec)->contents == NULL)
+ return false;
+
+ if (! bfd_get_section_contents (abfd, sec,
+ coff_section_data (abfd, sec)->contents,
+ (file_ptr) 0, sec->_raw_size))
+ return false;
+ }
+
+ return true;
}
-/* Swap out the ldhdr structure. */
+/* Get the size required to hold the dynamic symbols. */
-static void
-xcoff_swap_ldhdr_out (abfd, src, dst)
+long
+_bfd_xcoff_get_dynamic_symtab_upper_bound (abfd)
bfd *abfd;
- const struct internal_ldhdr *src;
- struct external_ldhdr *dst;
{
- bfd_put_32 (abfd, src->l_version, dst->l_version);
- bfd_put_32 (abfd, src->l_nsyms, dst->l_nsyms);
- bfd_put_32 (abfd, src->l_nreloc, dst->l_nreloc);
- bfd_put_32 (abfd, src->l_istlen, dst->l_istlen);
- bfd_put_32 (abfd, src->l_nimpid, dst->l_nimpid);
- bfd_put_32 (abfd, src->l_impoff, dst->l_impoff);
- bfd_put_32 (abfd, src->l_stlen, dst->l_stlen);
- bfd_put_32 (abfd, src->l_stoff, dst->l_stoff);
+ asection *lsec;
+ bfd_byte *contents;
+ struct internal_ldhdr ldhdr;
+
+ if ((abfd->flags & DYNAMIC) == 0)
+ {
+ bfd_set_error (bfd_error_invalid_operation);
+ return -1;
+ }
+
+ lsec = bfd_get_section_by_name (abfd, ".loader");
+ if (lsec == NULL)
+ {
+ bfd_set_error (bfd_error_no_symbols);
+ return -1;
+ }
+
+ if (! xcoff_get_section_contents (abfd, lsec))
+ return -1;
+ contents = coff_section_data (abfd, lsec)->contents;
+
+ bfd_xcoff_swap_ldhdr_in (abfd, (PTR) contents, &ldhdr);
+
+ return (ldhdr.l_nsyms + 1) * sizeof (asymbol *);
}
-/* Swap in the ldsym structure. */
+/* Get the dynamic symbols. */
-static void
-xcoff_swap_ldsym_in (abfd, src, dst)
+long
+_bfd_xcoff_canonicalize_dynamic_symtab (abfd, psyms)
bfd *abfd;
- const struct external_ldsym *src;
- struct internal_ldsym *dst;
+ asymbol **psyms;
{
- if (bfd_get_32 (abfd, src->_l._l_l._l_zeroes) != 0)
- memcpy (dst->_l._l_name, src->_l._l_name, SYMNMLEN);
- else
+ asection *lsec;
+ bfd_byte *contents;
+ struct internal_ldhdr ldhdr;
+ const char *strings;
+ bfd_byte *elsym, *elsymend;
+ coff_symbol_type *symbuf;
+
+ if ((abfd->flags & DYNAMIC) == 0)
+ {
+ bfd_set_error (bfd_error_invalid_operation);
+ return -1;
+ }
+
+ lsec = bfd_get_section_by_name (abfd, ".loader");
+ if (lsec == NULL)
+ {
+ bfd_set_error (bfd_error_no_symbols);
+ return -1;
+ }
+
+ if (! xcoff_get_section_contents (abfd, lsec))
+ return -1;
+ contents = coff_section_data (abfd, lsec)->contents;
+
+ coff_section_data (abfd, lsec)->keep_contents = true;
+
+ bfd_xcoff_swap_ldhdr_in (abfd, contents, &ldhdr);
+
+ strings = (char *) contents + ldhdr.l_stoff;
+
+ symbuf = ((coff_symbol_type *)
+ bfd_zalloc (abfd, ldhdr.l_nsyms * sizeof (coff_symbol_type)));
+ if (symbuf == NULL)
+ return -1;
+
+ elsym = contents + bfd_xcoff_loader_symbol_offset(abfd, &ldhdr);
+
+ elsymend = elsym + ldhdr.l_nsyms * bfd_xcoff_ldsymsz(abfd);
+ for (; elsym < elsymend; elsym += bfd_xcoff_ldsymsz(abfd), symbuf++, psyms++)
{
- dst->_l._l_l._l_zeroes = 0;
- dst->_l._l_l._l_offset = bfd_get_32 (abfd, src->_l._l_l._l_offset);
+ struct internal_ldsym ldsym;
+
+ bfd_xcoff_swap_ldsym_in (abfd, elsym, &ldsym);
+
+ symbuf->symbol.the_bfd = abfd;
+
+ if (ldsym._l._l_l._l_zeroes == 0)
+ symbuf->symbol.name = strings + ldsym._l._l_l._l_offset;
+ else
+ {
+ char *c;
+
+ c = bfd_alloc (abfd, SYMNMLEN + 1);
+ if (c == NULL)
+ return -1;
+ memcpy (c, ldsym._l._l_name, SYMNMLEN);
+ c[SYMNMLEN] = '\0';
+ symbuf->symbol.name = c;
+ }
+
+ if (ldsym.l_smclas == XMC_XO)
+ symbuf->symbol.section = bfd_abs_section_ptr;
+ else
+ symbuf->symbol.section = coff_section_from_bfd_index (abfd,
+ ldsym.l_scnum);
+ symbuf->symbol.value = ldsym.l_value - symbuf->symbol.section->vma;
+
+ symbuf->symbol.flags = BSF_NO_FLAGS;
+ if ((ldsym.l_smtype & L_EXPORT) != 0)
+ symbuf->symbol.flags |= BSF_GLOBAL;
+
+ /* FIXME: We have no way to record the other information stored
+ with the loader symbol. */
+
+ *psyms = (asymbol *) symbuf;
}
- dst->l_value = bfd_get_32 (abfd, src->l_value);
- dst->l_scnum = bfd_get_16 (abfd, src->l_scnum);
- dst->l_smtype = bfd_get_8 (abfd, src->l_smtype);
- dst->l_smclas = bfd_get_8 (abfd, src->l_smclas);
- dst->l_ifile = bfd_get_32 (abfd, src->l_ifile);
- dst->l_parm = bfd_get_32 (abfd, src->l_parm);
+
+ *psyms = NULL;
+
+ return ldhdr.l_nsyms;
}
-/* Swap out the ldsym structure. */
+/* Get the size required to hold the dynamic relocs. */
-static void
-xcoff_swap_ldsym_out (abfd, src, dst)
+long
+_bfd_xcoff_get_dynamic_reloc_upper_bound (abfd)
bfd *abfd;
- const struct internal_ldsym *src;
- struct external_ldsym *dst;
{
- if (src->_l._l_l._l_zeroes != 0)
- memcpy (dst->_l._l_name, src->_l._l_name, SYMNMLEN);
- else
+ asection *lsec;
+ bfd_byte *contents;
+ struct internal_ldhdr ldhdr;
+
+ if ((abfd->flags & DYNAMIC) == 0)
{
- bfd_put_32 (abfd, 0, dst->_l._l_l._l_zeroes);
- bfd_put_32 (abfd, src->_l._l_l._l_offset, dst->_l._l_l._l_offset);
+ bfd_set_error (bfd_error_invalid_operation);
+ return -1;
}
- bfd_put_32 (abfd, src->l_value, dst->l_value);
- bfd_put_16 (abfd, src->l_scnum, dst->l_scnum);
- bfd_put_8 (abfd, src->l_smtype, dst->l_smtype);
- bfd_put_8 (abfd, src->l_smclas, dst->l_smclas);
- bfd_put_32 (abfd, src->l_ifile, dst->l_ifile);
- bfd_put_32 (abfd, src->l_parm, dst->l_parm);
-}
-/* As it happens, we never need to swap in the ldrel structure. */
+ lsec = bfd_get_section_by_name (abfd, ".loader");
+ if (lsec == NULL)
+ {
+ bfd_set_error (bfd_error_no_symbols);
+ return -1;
+ }
+
+ if (! xcoff_get_section_contents (abfd, lsec))
+ return -1;
+ contents = coff_section_data (abfd, lsec)->contents;
-/* Swap out the ldrel structure. */
+ bfd_xcoff_swap_ldhdr_in (abfd, (struct external_ldhdr *) contents, &ldhdr);
-static void
-xcoff_swap_ldrel_out (abfd, src, dst)
+ return (ldhdr.l_nreloc + 1) * sizeof (arelent *);
+}
+
+/* Get the dynamic relocs. */
+
+long
+_bfd_xcoff_canonicalize_dynamic_reloc (abfd, prelocs, syms)
bfd *abfd;
- const struct internal_ldrel *src;
- struct external_ldrel *dst;
+ arelent **prelocs;
+ asymbol **syms;
{
- bfd_put_32 (abfd, src->l_vaddr, dst->l_vaddr);
- bfd_put_32 (abfd, src->l_symndx, dst->l_symndx);
- bfd_put_16 (abfd, src->l_rtype, dst->l_rtype);
- bfd_put_16 (abfd, src->l_rsecnm, dst->l_rsecnm);
+ asection *lsec;
+ bfd_byte *contents;
+ struct internal_ldhdr ldhdr;
+ arelent *relbuf;
+ bfd_byte *elrel, *elrelend;
+
+ if ((abfd->flags & DYNAMIC) == 0)
+ {
+ bfd_set_error (bfd_error_invalid_operation);
+ return -1;
+ }
+
+ lsec = bfd_get_section_by_name (abfd, ".loader");
+ if (lsec == NULL)
+ {
+ bfd_set_error (bfd_error_no_symbols);
+ return -1;
+ }
+
+ if (! xcoff_get_section_contents (abfd, lsec))
+ return -1;
+ contents = coff_section_data (abfd, lsec)->contents;
+
+ bfd_xcoff_swap_ldhdr_in (abfd, contents, &ldhdr);
+
+ relbuf = (arelent *) bfd_alloc (abfd, ldhdr.l_nreloc * sizeof (arelent));
+ if (relbuf == NULL)
+ return -1;
+
+ elrel = contents + bfd_xcoff_loader_reloc_offset(abfd, &ldhdr);
+
+ elrelend = elrel + ldhdr.l_nreloc * bfd_xcoff_ldrelsz(abfd);
+ for (; elrel < elrelend; elrel += bfd_xcoff_ldrelsz(abfd), relbuf++,
+ prelocs++)
+ {
+ struct internal_ldrel ldrel;
+
+ bfd_xcoff_swap_ldrel_in (abfd, elrel, &ldrel);
+
+ if (ldrel.l_symndx >= 3)
+ relbuf->sym_ptr_ptr = syms + (ldrel.l_symndx - 3);
+ else
+ {
+ const char *name;
+ asection *sec;
+
+ switch (ldrel.l_symndx)
+ {
+ case 0:
+ name = ".text";
+ break;
+ case 1:
+ name = ".data";
+ break;
+ case 2:
+ name = ".bss";
+ break;
+ default:
+ abort ();
+ break;
+ }
+
+ sec = bfd_get_section_by_name (abfd, name);
+ if (sec == NULL)
+ {
+ bfd_set_error (bfd_error_bad_value);
+ return -1;
+ }
+
+ relbuf->sym_ptr_ptr = sec->symbol_ptr_ptr;
+ }
+
+ relbuf->address = ldrel.l_vaddr;
+ relbuf->addend = 0;
+
+ /* Most dynamic relocs have the same type. FIXME: This is only
+ correct if ldrel.l_rtype == 0. In other cases, we should use
+ a different howto. */
+ relbuf->howto = bfd_xcoff_dynamic_reloc_howto(abfd);
+
+ /* FIXME: We have no way to record the l_rsecnm field. */
+
+ *prelocs = relbuf;
+ }
+
+ *prelocs = NULL;
+
+ return ldhdr.l_nreloc;
}
\f
/* Routine to create an entry in an XCOFF link hash table. */
return &ret->root;
}
-/* Look up an entry in an XCOFF link hash table. */
-
-#define xcoff_link_hash_lookup(table, string, create, copy, follow) \
- ((struct xcoff_link_hash_entry *) \
- bfd_link_hash_lookup (&(table)->root, (string), (create), (copy),\
- (follow)))
-
-/* Traverse an XCOFF link hash table. */
-
-#define xcoff_link_hash_traverse(table, func, info) \
- (bfd_link_hash_traverse \
- (&(table)->root, \
- (boolean (*) PARAMS ((struct bfd_link_hash_entry *, PTR))) (func), \
- (info)))
-
-/* Get the XCOFF link hash table from the info structure. This is
- just a cast. */
-
-#define xcoff_hash_table(p) ((struct xcoff_link_hash_table *) ((p)->hash))
\f
/* Read internal relocs for an XCOFF csect. This is a wrapper around
_bfd_coff_read_internal_relocs which tries to take advantage of any
boolean require_internal;
struct internal_reloc *internal_relocs;
{
+
if (coff_section_data (abfd, sec) != NULL
&& coff_section_data (abfd, sec)->relocs == NULL
&& xcoff_section_data (abfd, sec) != NULL)
off = ((sec->rel_filepos - enclosing->rel_filepos)
/ bfd_coff_relsz (abfd));
+
if (! require_internal)
return coff_section_data (abfd, enclosing)->relocs + off;
memcpy (internal_relocs,
bfd *abfd;
struct bfd_link_info *info;
{
+
switch (bfd_get_format (abfd))
{
case bfd_object:
return xcoff_link_add_object_symbols (abfd, info);
+
case bfd_archive:
- return (_bfd_generic_link_add_archive_symbols
- (abfd, info, xcoff_link_check_archive_element));
+ /* If the archive has a map, do the usual search. We then need
+ to check the archive for stripped dynamic objects, because
+ they will not appear in the archive map even though they
+ should, perhaps, be included. If the archive has no map, we
+ just consider each object file in turn, since that apparently
+ is what the AIX native linker does. */
+ if (bfd_has_map (abfd))
+ {
+ if (! (_bfd_generic_link_add_archive_symbols
+ (abfd, info, xcoff_link_check_archive_element)))
+ return false;
+ }
+
+ {
+ bfd *member;
+
+ member = bfd_openr_next_archived_file (abfd, (bfd *) NULL);
+ while (member != NULL)
+ {
+ if (bfd_check_format (member, bfd_object)
+ && (! bfd_has_map (abfd)
+ || ((member->flags & DYNAMIC) != 0
+ && (member->flags & HAS_SYMS) == 0)))
+ {
+ boolean needed;
+
+ if (! xcoff_link_check_archive_element (member, info, &needed))
+ return false;
+ if (needed)
+ member->archive_pass = -1;
+ }
+ member = bfd_openr_next_archived_file (abfd, member);
+ }
+ }
+
+ return true;
+
default:
bfd_set_error (bfd_error_wrong_format);
return false;
bfd *abfd;
struct bfd_link_info *info;
{
+
if (! _bfd_coff_get_external_symbols (abfd))
return false;
if (! xcoff_link_add_symbols (abfd, info))
struct bfd_link_info *info;
boolean *pneeded;
{
+
if (! _bfd_coff_get_external_symbols (abfd))
return false;
*pneeded = false;
+ if ((abfd->flags & DYNAMIC) != 0
+ && ! info->static_link
+ && info->hash->creator == abfd->xvec)
+ return xcoff_link_check_dynamic_ar_symbols (abfd, info, pneeded);
+
symesz = bfd_coff_symesz (abfd);
esym = (bfd_byte *) obj_coff_external_syms (abfd);
esym_end = esym + obj_raw_syment_count (abfd) * symesz;
object file. */
name = _bfd_coff_internal_syment_name (abfd, &sym, buf);
+
if (name == NULL)
return false;
h = bfd_link_hash_lookup (info->hash, name, false, false, true);
defines it. We also don't bring in symbols to satisfy
undefined references in shared objects. */
if (h != (struct bfd_link_hash_entry *) NULL
- && h->type == bfd_link_hash_undefined)
+ && h->type == bfd_link_hash_undefined
+ && (info->hash->creator != abfd->xvec
+ || (((struct xcoff_link_hash_entry *) h)->flags
+ & XCOFF_DEF_DYNAMIC) == 0))
{
if (! (*info->callbacks->add_archive_element) (info, abfd, name))
return false;
return true;
}
+/* Look through the loader symbols to see if this dynamic object
+ should be included in the link. The native linker uses the loader
+ symbols, not the normal symbol table, so we do too. */
+
+static boolean
+xcoff_link_check_dynamic_ar_symbols (abfd, info, pneeded)
+ bfd *abfd;
+ struct bfd_link_info *info;
+ boolean *pneeded;
+{
+ asection *lsec;
+ bfd_byte *contents;
+ struct internal_ldhdr ldhdr;
+ const char *strings;
+ bfd_byte *elsym, *elsymend;
+
+ *pneeded = false;
+
+ lsec = bfd_get_section_by_name (abfd, ".loader");
+ if (lsec == NULL)
+ {
+ /* There are no symbols, so don't try to include it. */
+ return true;
+ }
+
+ if (! xcoff_get_section_contents (abfd, lsec))
+ return false;
+ contents = coff_section_data (abfd, lsec)->contents;
+
+ bfd_xcoff_swap_ldhdr_in (abfd, contents, &ldhdr);
+
+ strings = (char *) contents + ldhdr.l_stoff;
+
+ elsym = contents + bfd_xcoff_loader_symbol_offset(abfd, &ldhdr);
+
+ elsymend = elsym + ldhdr.l_nsyms * bfd_xcoff_ldsymsz(abfd);
+ for (; elsym < elsymend; elsym += bfd_xcoff_ldsymsz(abfd))
+ {
+ struct internal_ldsym ldsym;
+ char nambuf[SYMNMLEN + 1];
+ const char *name;
+ struct bfd_link_hash_entry *h;
+
+ bfd_xcoff_swap_ldsym_in (abfd, elsym, &ldsym);
+
+ /* We are only interested in exported symbols. */
+ if ((ldsym.l_smtype & L_EXPORT) == 0)
+ continue;
+
+ if (ldsym._l._l_l._l_zeroes == 0)
+ name = strings + ldsym._l._l_l._l_offset;
+ else
+ {
+ memcpy (nambuf, ldsym._l._l_name, SYMNMLEN);
+ nambuf[SYMNMLEN] = '\0';
+ name = nambuf;
+ }
+
+ h = bfd_link_hash_lookup (info->hash, name, false, false, true);
+
+ /* We are only interested in symbols that are currently
+ undefined. At this point we know that we are using an XCOFF
+ hash table. */
+ if (h != NULL
+ && h->type == bfd_link_hash_undefined
+ && (((struct xcoff_link_hash_entry *) h)->flags
+ & XCOFF_DEF_DYNAMIC) == 0)
+ {
+ if (! (*info->callbacks->add_archive_element) (info, abfd, name))
+ return false;
+ *pneeded = true;
+ return true;
+ }
+ }
+
+ /* We do not need this shared object. */
+
+ if (contents != NULL && ! coff_section_data (abfd, lsec)->keep_contents)
+ {
+ free (coff_section_data (abfd, lsec)->contents);
+ coff_section_data (abfd, lsec)->contents = NULL;
+ }
+
+ return true;
+}
+
/* Returns the index of reloc in RELOCS with the least address greater
than or equal to ADDRESS. The relocs are sorted by address. */
return min;
}
+
+/*
+ * xcoff_link_create_extra_sections
+ *
+ * Takes care of creating the .loader, .gl, .ds, .debug and sections
+ */
+static boolean
+xcoff_link_create_extra_sections(bfd * abfd, struct bfd_link_info *info) {
+
+ boolean return_value = false;
+
+ if (info->hash->creator == abfd->xvec) {
+
+ /* We need to build a .loader section, so we do it here. This
+ won't work if we're producing an XCOFF output file with no
+ XCOFF input files. FIXME. */
+
+ if (xcoff_hash_table (info)->loader_section == NULL) {
+ asection *lsec;
+
+ lsec = bfd_make_section_anyway (abfd, ".loader");
+ if (lsec == NULL) {
+ goto end_return;
+ }
+ xcoff_hash_table (info)->loader_section = lsec;
+ lsec->flags |= SEC_HAS_CONTENTS | SEC_IN_MEMORY;
+ }
+
+ /* Likewise for the linkage section. */
+ if (xcoff_hash_table (info)->linkage_section == NULL) {
+ asection *lsec;
+
+ lsec = bfd_make_section_anyway (abfd, ".gl");
+ if (lsec == NULL) {
+ goto end_return;
+ }
+
+ xcoff_hash_table (info)->linkage_section = lsec;
+ lsec->flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
+ | SEC_IN_MEMORY);
+ lsec->alignment_power = 2;
+ }
+
+ /* Likewise for the TOC section. */
+ if (xcoff_hash_table (info)->toc_section == NULL) {
+ asection *tsec;
+
+ tsec = bfd_make_section_anyway (abfd, ".tc");
+ if (tsec == NULL) {
+ goto end_return;
+ }
+
+ xcoff_hash_table (info)->toc_section = tsec;
+ tsec->flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
+ | SEC_IN_MEMORY);
+ tsec->alignment_power = 2;
+ }
+
+ /* Likewise for the descriptor section. */
+ if (xcoff_hash_table (info)->descriptor_section == NULL) {
+ asection *dsec;
+
+ dsec = bfd_make_section_anyway (abfd, ".ds");
+ if (dsec == NULL) {
+ goto end_return;
+ }
+
+ xcoff_hash_table (info)->descriptor_section = dsec;
+ dsec->flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
+ | SEC_IN_MEMORY);
+ dsec->alignment_power = 2;
+ }
+
+ /* Likewise for the .debug section. */
+ if (xcoff_hash_table (info)->debug_section == NULL
+ && info->strip != strip_all) {
+ asection *dsec;
+
+ dsec = bfd_make_section_anyway (abfd, ".debug");
+ if (dsec == NULL) {
+ goto end_return;
+ }
+ xcoff_hash_table (info)->debug_section = dsec;
+ dsec->flags |= SEC_HAS_CONTENTS | SEC_IN_MEMORY;
+ }
+ }
+
+ return_value = true;
+
+ end_return:
+
+ return return_value;
+}
+
/* Add all the symbols from an object file to the hash table.
XCOFF is a weird format. A normal XCOFF .o files will have three
bfd_size_type symesz;
bfd_byte *esym;
bfd_byte *esym_end;
- struct reloc_info_struct
- {
- struct internal_reloc *relocs;
- asection **csects;
- bfd_byte *linenos;
- } *reloc_info = NULL;
-
- if ((abfd->flags & DYNAMIC) != 0
- && ! info->static_link)
- {
- if (! xcoff_link_add_dynamic_symbols (abfd, info))
- return false;
- }
-
- /* We need to build a .loader section, so we do it here. This won't
- work if we're producing an XCOFF output file with no XCOFF input
- files. FIXME. */
- if (xcoff_hash_table (info)->loader_section == NULL)
- {
- asection *lsec;
-
- lsec = bfd_make_section_anyway (abfd, ".loader");
- if (lsec == NULL)
- goto error_return;
- xcoff_hash_table (info)->loader_section = lsec;
- lsec->flags |= SEC_HAS_CONTENTS | SEC_IN_MEMORY;
- }
- /* Likewise for the linkage section. */
- if (xcoff_hash_table (info)->linkage_section == NULL)
- {
- asection *lsec;
-
- lsec = bfd_make_section_anyway (abfd, ".gl");
- if (lsec == NULL)
- goto error_return;
- xcoff_hash_table (info)->linkage_section = lsec;
- lsec->flags |= SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY;
- lsec->alignment_power = 2;
- }
- /* Likewise for the TOC section. */
- if (xcoff_hash_table (info)->toc_section == NULL)
- {
- asection *tsec;
+ struct reloc_info_struct
+ {
+ struct internal_reloc *relocs;
+ asection **csects;
+ bfd_byte *linenos;
+ } *reloc_info = NULL;
- tsec = bfd_make_section_anyway (abfd, ".tc");
- if (tsec == NULL)
- goto error_return;
- xcoff_hash_table (info)->toc_section = tsec;
- tsec->flags |= SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY;
- tsec->alignment_power = 2;
- }
- /* Likewise for the descriptor section. */
- if (xcoff_hash_table (info)->descriptor_section == NULL)
- {
- asection *dsec;
+ keep_syms = obj_coff_keep_syms (abfd);
- dsec = bfd_make_section_anyway (abfd, ".ds");
- if (dsec == NULL)
- goto error_return;
- xcoff_hash_table (info)->descriptor_section = dsec;
- dsec->flags |= SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY;
- dsec->alignment_power = 2;
+ if ((abfd->flags & DYNAMIC) != 0
+ && ! info->static_link) {
+ if (! xcoff_link_add_dynamic_symbols (abfd, info)) {
+ return false;
}
- /* Likewise for the .debug section. */
- if (xcoff_hash_table (info)->debug_section == NULL)
- {
- asection *dsec;
+ }
- dsec = bfd_make_section_anyway (abfd, ".debug");
- if (dsec == NULL)
- goto error_return;
- xcoff_hash_table (info)->debug_section = dsec;
- dsec->flags |= SEC_HAS_CONTENTS | SEC_IN_MEMORY;
- }
+ /* create the loader, toc, gl, ds and debug sections, if needed */
+ if (false == xcoff_link_create_extra_sections(abfd, info)) {
+ goto error_return;
+ }
if ((abfd->flags & DYNAMIC) != 0
&& ! info->static_link)
else
default_copy = true;
- symcount = obj_raw_syment_count (abfd);
+ symcount = obj_raw_syment_count (abfd);
/* We keep a list of the linker hash table entries that correspond
to each external symbol. */
/* Read in the relocs and line numbers for each section. */
linesz = bfd_coff_linesz (abfd);
last_real = NULL;
- for (o = abfd->sections; o != NULL; o = o->next)
- {
- last_real = o;
- if ((o->flags & SEC_RELOC) != 0)
- {
- reloc_info[o->target_index].relocs =
- xcoff_read_internal_relocs (abfd, o, true, (bfd_byte *) NULL,
- false, (struct internal_reloc *) NULL);
- reloc_info[o->target_index].csects =
- (asection **) bfd_malloc (o->reloc_count * sizeof (asection *));
- if (reloc_info[o->target_index].csects == NULL)
- goto error_return;
- memset (reloc_info[o->target_index].csects, 0,
- o->reloc_count * sizeof (asection *));
- }
+ for (o = abfd->sections; o != NULL; o = o->next) {
- if ((info->strip == strip_none || info->strip == strip_some)
- && o->lineno_count > 0)
- {
- bfd_byte *linenos;
+ last_real = o;
+ if ((o->flags & SEC_RELOC) != 0) {
- linenos = (bfd_byte *) bfd_malloc (o->lineno_count * linesz);
- if (linenos == NULL)
- goto error_return;
- reloc_info[o->target_index].linenos = linenos;
- if (bfd_seek (abfd, o->line_filepos, SEEK_SET) != 0
- || (bfd_read (linenos, linesz, o->lineno_count, abfd)
- != linesz * o->lineno_count))
- goto error_return;
- }
+ reloc_info[o->target_index].relocs =
+ xcoff_read_internal_relocs (abfd, o, true, (bfd_byte *) NULL,
+ false, (struct internal_reloc *) NULL);
+ reloc_info[o->target_index].csects =
+ (asection **) bfd_malloc (o->reloc_count * sizeof (asection *));
+ if (reloc_info[o->target_index].csects == NULL)
+ goto error_return;
+ memset (reloc_info[o->target_index].csects, 0,
+ o->reloc_count * sizeof (asection *));
+
}
+ if ((info->strip == strip_none || info->strip == strip_some)
+ && o->lineno_count > 0) {
+
+ bfd_byte *linenos;
+
+ linenos = (bfd_byte *) bfd_malloc (o->lineno_count * linesz);
+ if (linenos == NULL)
+ goto error_return;
+ reloc_info[o->target_index].linenos = linenos;
+ if (bfd_seek (abfd, o->line_filepos, SEEK_SET) != 0
+ || (bfd_read (linenos, linesz, o->lineno_count, abfd)
+ != linesz * o->lineno_count))
+ goto error_return;
+
+ }
+ }
+
+
/* Don't let the linker relocation routines discard the symbols. */
- keep_syms = obj_coff_keep_syms (abfd);
obj_coff_keep_syms (abfd) = true;
csect = NULL;
BFD_ASSERT (symesz == bfd_coff_auxesz (abfd));
esym = (bfd_byte *) obj_coff_external_syms (abfd);
esym_end = esym + symcount * symesz;
- while (esym < esym_end)
- {
- struct internal_syment sym;
- union internal_auxent aux;
- const char *name;
- char buf[SYMNMLEN + 1];
- int smtyp;
- flagword flags;
- asection *section;
- bfd_vma value;
- struct xcoff_link_hash_entry *set_toc;
- bfd_coff_swap_sym_in (abfd, (PTR) esym, (PTR) &sym);
+ while (esym < esym_end) {
+ struct internal_syment sym;
+ union internal_auxent aux;
+ const char *name;
+ char buf[SYMNMLEN + 1];
+ int smtyp;
+ flagword flags;
+ asection *section;
+ bfd_vma value;
+ struct xcoff_link_hash_entry *set_toc;
+
+ bfd_coff_swap_sym_in (abfd, (PTR) esym, (PTR) &sym);
+
+ /* In this pass we are only interested in symbols with csect
+ information. */
+ if (sym.n_sclass != C_EXT && sym.n_sclass != C_HIDEXT) {
+
+ /*
+ * Set csect_cache,
+ * Normally csect is a .pr, .rw etc. created in the loop
+ * If C_FILE or first time, handle special
+ *
+ * Advance esym, sym_hash, csect_hash ptr's
+ * Keep track of the last_symndx for the current file
+ */
+ if (sym.n_sclass == C_FILE && csect != NULL) {
+ xcoff_section_data (abfd, csect)->last_symndx =
+ ((esym
+ - (bfd_byte *) obj_coff_external_syms (abfd))
+ / symesz);
+ csect = NULL;
+ }
- /* In this pass we are only interested in symbols with csect
- information. */
- if (sym.n_sclass != C_EXT && sym.n_sclass != C_HIDEXT)
- {
- if (sym.n_sclass == C_FILE && csect != NULL)
- {
- xcoff_section_data (abfd, csect)->last_symndx =
- ((esym
- - (bfd_byte *) obj_coff_external_syms (abfd))
- / symesz);
- csect = NULL;
- }
+ if (csect != NULL)
+ *csect_cache = csect;
+ else if (first_csect == NULL || sym.n_sclass == C_FILE)
+ *csect_cache = coff_section_from_bfd_index (abfd, sym.n_scnum);
+ else
+ *csect_cache = NULL;
+ esym += (sym.n_numaux + 1) * symesz;
+ sym_hash += sym.n_numaux + 1;
+ csect_cache += sym.n_numaux + 1;
+
+ continue;
+ }
- if (csect != NULL)
- *csect_cache = csect;
- else if (first_csect == NULL || sym.n_sclass == C_FILE)
- *csect_cache = coff_section_from_bfd_index (abfd, sym.n_scnum);
- else
- *csect_cache = NULL;
- esym += (sym.n_numaux + 1) * symesz;
- sym_hash += sym.n_numaux + 1;
- csect_cache += sym.n_numaux + 1;
- continue;
- }
+ name = _bfd_coff_internal_syment_name (abfd, &sym, buf);
- name = _bfd_coff_internal_syment_name (abfd, &sym, buf);
- if (name == NULL)
- goto error_return;
+ if (name == NULL)
+ goto error_return;
/* If this symbol has line number information attached to it,
and we're not stripping it, count the number of entries and
we are going to attach line number information by symbol,
rather than by section, in order to more easily handle
garbage collection. */
- if ((info->strip == strip_none || info->strip == strip_some)
- && sym.n_numaux > 1
- && csect != NULL
- && ISFCN (sym.n_type))
- {
- union internal_auxent auxlin;
-
- bfd_coff_swap_aux_in (abfd, (PTR) (esym + symesz),
- sym.n_type, sym.n_sclass,
- 0, sym.n_numaux, (PTR) &auxlin);
- if (auxlin.x_sym.x_fcnary.x_fcn.x_lnnoptr != 0)
- {
- asection *enclosing;
- bfd_size_type linoff;
-
- enclosing = xcoff_section_data (abfd, csect)->enclosing;
- if (enclosing == NULL)
- {
- (*_bfd_error_handler)
- ("%s: `%s' has line numbers but no enclosing section",
- bfd_get_filename (abfd), name);
- bfd_set_error (bfd_error_bad_value);
- goto error_return;
- }
- linoff = (auxlin.x_sym.x_fcnary.x_fcn.x_lnnoptr
- - enclosing->line_filepos);
- if (linoff < enclosing->lineno_count * linesz)
- {
- struct internal_lineno lin;
- bfd_byte *linpstart;
-
- linpstart = (reloc_info[enclosing->target_index].linenos
- + linoff);
- bfd_coff_swap_lineno_in (abfd, (PTR) linpstart, (PTR) &lin);
- if (lin.l_lnno == 0
- && ((bfd_size_type) lin.l_addr.l_symndx
- == ((esym
- - (bfd_byte *) obj_coff_external_syms (abfd))
- / symesz)))
- {
- bfd_byte *linpend, *linp;
-
- linpend = (reloc_info[enclosing->target_index].linenos
- + enclosing->lineno_count * linesz);
- for (linp = linpstart + linesz;
- linp < linpend;
- linp += linesz)
- {
- bfd_coff_swap_lineno_in (abfd, (PTR) linp,
- (PTR) &lin);
- if (lin.l_lnno == 0)
- break;
- }
- csect->lineno_count += (linp - linpstart) / linesz;
- /* The setting of line_filepos will only be
- useful if all the line number entries for a
- csect are contiguous; this only matters for
- error reporting. */
- if (csect->line_filepos == 0)
- csect->line_filepos =
- auxlin.x_sym.x_fcnary.x_fcn.x_lnnoptr;
- }
- }
- }
- }
+ if ((info->strip == strip_none || info->strip == strip_some) &&
+ (sym.n_numaux > 1) &&
+ (csect != NULL) &&
+ (ISFCN (sym.n_type))) {
- /* Pick up the csect auxiliary information. */
+ union internal_auxent auxlin;
- if (sym.n_numaux == 0)
- {
+ bfd_coff_swap_aux_in (abfd, (PTR) (esym + symesz),
+ sym.n_type, sym.n_sclass,
+ 0, sym.n_numaux, (PTR) &auxlin);
+
+ if (auxlin.x_sym.x_fcnary.x_fcn.x_lnnoptr != 0) {
+ asection *enclosing;
+ bfd_signed_vma linoff;
+
+ enclosing = xcoff_section_data (abfd, csect)->enclosing;
+ if (enclosing == NULL) {
(*_bfd_error_handler)
- ("%s: class %d symbol `%s' has no aux entries",
- bfd_get_filename (abfd), sym.n_sclass, name);
+ (_("%s: `%s' has line numbers but no enclosing section"),
+ bfd_get_filename (abfd), name);
bfd_set_error (bfd_error_bad_value);
goto error_return;
}
+ linoff = (auxlin.x_sym.x_fcnary.x_fcn.x_lnnoptr
+ - enclosing->line_filepos);
+ /* explict cast to bfd_signed_vma for compiler */
+ if (linoff < (bfd_signed_vma)(enclosing->lineno_count * linesz)) {
+ struct internal_lineno lin;
+ bfd_byte *linpstart;
+
+ linpstart = (reloc_info[enclosing->target_index].linenos
+ + linoff);
+ bfd_coff_swap_lineno_in (abfd, (PTR) linpstart, (PTR) &lin);
+ if (lin.l_lnno == 0
+ && ((bfd_size_type) lin.l_addr.l_symndx
+ == ((esym
+ - (bfd_byte *) obj_coff_external_syms (abfd))
+ / symesz))) {
+ bfd_byte *linpend, *linp;
+
+ linpend = (reloc_info[enclosing->target_index].linenos
+ + enclosing->lineno_count * linesz);
+ for (linp = linpstart + linesz; linp < linpend; linp += linesz) {
+ bfd_coff_swap_lineno_in (abfd, (PTR) linp,
+ (PTR) &lin);
+ if (lin.l_lnno == 0)
+ break;
+ }
+ csect->lineno_count += (linp - linpstart) / linesz;
+ /* The setting of line_filepos will only be
+ useful if all the line number entries for a
+ csect are contiguous; this only matters for
+ error reporting. */
+ if (csect->line_filepos == 0)
+ csect->line_filepos =
+ auxlin.x_sym.x_fcnary.x_fcn.x_lnnoptr;
+ }
+ }
+ }
+ }
- bfd_coff_swap_aux_in (abfd,
- (PTR) (esym + symesz * sym.n_numaux),
- sym.n_type, sym.n_sclass,
+ /* Pick up the csect auxiliary information. */
+
+ if (sym.n_numaux == 0) {
+ (*_bfd_error_handler)
+ (_("%s: class %d symbol `%s' has no aux entries"),
+ bfd_get_filename (abfd), sym.n_sclass, name);
+ bfd_set_error (bfd_error_bad_value);
+ goto error_return;
+ }
+
+ bfd_coff_swap_aux_in (abfd,
+ (PTR) (esym + symesz * sym.n_numaux),
+ sym.n_type, sym.n_sclass,
sym.n_numaux - 1, sym.n_numaux,
(PTR) &aux);
{
default:
(*_bfd_error_handler)
- ("%s: symbol `%s' has unrecognized csect type %d",
+ (_("%s: symbol `%s' has unrecognized csect type %d"),
bfd_get_filename (abfd), name, smtyp);
bfd_set_error (bfd_error_bad_value);
goto error_return;
|| aux.x_csect.x_scnlen.l != 0)
{
(*_bfd_error_handler)
- ("%s: bad XTY_ER symbol `%s': class %d scnum %d scnlen %d",
+ (_("%s: bad XTY_ER symbol `%s': class %d scnum %d scnlen %d"),
bfd_get_filename (abfd), name, sym.n_sclass, sym.n_scnum,
aux.x_csect.x_scnlen.l);
bfd_set_error (bfd_error_bad_value);
case XTY_SD:
/* This is a csect definition. */
-
if (csect != NULL)
{
xcoff_section_data (abfd, csect)->last_symndx =
|| aux.x_csect.x_scnlen.l != 0)
{
(*_bfd_error_handler)
- ("%s: XMC_TC0 symbol `%s' is class %d scnlen %d",
+ (_("%s: XMC_TC0 symbol `%s' is class %d scnlen %d"),
bfd_get_filename (abfd), name, sym.n_sclass,
aux.x_csect.x_scnlen.l);
bfd_set_error (bfd_error_bad_value);
xcoff_data (abfd)->toc = sym.n_value;
}
- /* We must merge TOC entries for the same symbol. We can
- merge two TOC entries if they are both C_HIDEXT, they
- both have the same name, they are both 4 bytes long, and
- they both have a relocation table entry for an external
- symbol with the same name. Unfortunately, this means
- that we must look through the relocations. Ick. */
- if (aux.x_csect.x_smclas == XMC_TC
- && sym.n_sclass == C_HIDEXT
- && aux.x_csect.x_scnlen.l == 4
- && info->hash->creator == abfd->xvec)
- {
- asection *enclosing;
- struct internal_reloc *relocs;
- bfd_size_type relindx;
- struct internal_reloc *rel;
-
- enclosing = coff_section_from_bfd_index (abfd, sym.n_scnum);
- if (enclosing == NULL)
- goto error_return;
-
- relocs = reloc_info[enclosing->target_index].relocs;
- relindx = xcoff_find_reloc (relocs, enclosing->reloc_count,
- sym.n_value);
- rel = relocs + relindx;
- if (relindx < enclosing->reloc_count
- && rel->r_vaddr == (bfd_vma) sym.n_value
- && rel->r_size == 31
- && rel->r_type == R_POS)
- {
- bfd_byte *erelsym;
- struct internal_syment relsym;
-
- erelsym = ((bfd_byte *) obj_coff_external_syms (abfd)
- + rel->r_symndx * symesz);
- bfd_coff_swap_sym_in (abfd, (PTR) erelsym, (PTR) &relsym);
- if (relsym.n_sclass == C_EXT)
- {
- const char *relname;
- char relbuf[SYMNMLEN + 1];
- boolean copy;
- struct xcoff_link_hash_entry *h;
-
- /* At this point we know that the TOC entry is
- for an externally visible symbol. */
- relname = _bfd_coff_internal_syment_name (abfd, &relsym,
- relbuf);
- if (relname == NULL)
- goto error_return;
-
- /* We only merge TOC entries if the TC name is
- the same as the symbol name. This handles
- the normal case, but not common cases like
- SYM.P4 which gcc generates to store SYM + 4
- in the TOC. FIXME. */
- if (strcmp (name, relname) == 0)
- {
- copy = (! info->keep_memory
- || relsym._n._n_n._n_zeroes != 0
- || relsym._n._n_n._n_offset == 0);
- h = xcoff_link_hash_lookup (xcoff_hash_table (info),
- relname, true, copy,
- false);
- if (h == NULL)
- goto error_return;
+ /*
+ * We must merge TOC entries for the same symbol. We can
+ * merge two TOC entries if they are both C_HIDEXT, they
+ * both have the same name, they are both 4 or 8 bytes long, and
+ * they both have a relocation table entry for an external
+ * symbol with the same name. Unfortunately, this means
+ * that we must look through the relocations. Ick.
+ *
+ * Logic for 32 bit vs 64 bit.
+ * 32 bit has a csect length of 4 for TOC
+ * 64 bit has a csect length of 8 for TOC
+ *
+ * The conditions to get past the if-check are not that bad.
+ * They are what is used to create the TOC csects in the first
+ * place
+ */
+ if ((aux.x_csect.x_smclas == XMC_TC) &&
+ (sym.n_sclass == C_HIDEXT) &&
+ (info->hash->creator == abfd->xvec) &&
+ (((bfd_xcoff_is_xcoff32(abfd)) &&
+ (aux.x_csect.x_scnlen.l == 4)) ||
+ ((bfd_xcoff_is_xcoff64(abfd)) &&
+ (aux.x_csect.x_scnlen.l == 8)))) {
- /* At this point h->root.type could be
- bfd_link_hash_new. That should be OK,
- since we know for sure that we will come
- across this symbol as we step through the
- file. */
-
- /* We store h in *sym_hash for the
- convenience of the relocate_section
- function. */
- *sym_hash = h;
+ asection *enclosing;
+ struct internal_reloc *relocs;
+ bfd_size_type relindx;
+ struct internal_reloc *rel;
- if (h->toc_section != NULL)
- {
- asection **rel_csects;
-
- /* We already have a TOC entry for this
- symbol, so we can just ignore this
- one. */
- rel_csects =
- reloc_info[enclosing->target_index].csects;
- rel_csects[relindx] = bfd_und_section_ptr;
- break;
- }
+ enclosing = coff_section_from_bfd_index (abfd, sym.n_scnum);
+ if (enclosing == NULL)
+ goto error_return;
- /* We are about to create a TOC entry for
- this symbol. */
- set_toc = h;
- }
- }
- }
- }
+ relocs = reloc_info[enclosing->target_index].relocs;
+ relindx = xcoff_find_reloc (relocs, enclosing->reloc_count,
+ sym.n_value);
+ rel = relocs + relindx;
+
+ /*
+ * 32 bit R_POS r_size is 31
+ * 64 bit R_POS r_size is 63
+ */
+ if ((relindx < enclosing->reloc_count) &&
+ (rel->r_vaddr == (bfd_vma) sym.n_value) &&
+ (rel->r_type == R_POS) &&
+ (((bfd_xcoff_is_xcoff32(abfd)) &&
+ (rel->r_size == 31)) ||
+ ((bfd_xcoff_is_xcoff64(abfd)) &&
+ (rel->r_size == 63)))) {
+
+ bfd_byte *erelsym;
+
+ struct internal_syment relsym;
+
+ erelsym = ((bfd_byte *) obj_coff_external_syms (abfd)
+ + rel->r_symndx * symesz);
+ bfd_coff_swap_sym_in (abfd, (PTR) erelsym, (PTR) &relsym);
+ if (relsym.n_sclass == C_EXT) {
+ const char *relname;
+ char relbuf[SYMNMLEN + 1];
+ boolean copy;
+ struct xcoff_link_hash_entry *h;
+
+ /* At this point we know that the TOC entry is
+ for an externally visible symbol. */
+
+ relname = _bfd_coff_internal_syment_name (abfd, &relsym,
+ relbuf);
+ if (relname == NULL)
+ goto error_return;
+
+ /* We only merge TOC entries if the TC name is
+ the same as the symbol name. This handles
+ the normal case, but not common cases like
+ SYM.P4 which gcc generates to store SYM + 4
+ in the TOC. FIXME. */
+
+ if (strcmp (name, relname) == 0) {
+ copy = (! info->keep_memory
+ || relsym._n._n_n._n_zeroes != 0
+ || relsym._n._n_n._n_offset == 0);
+ h = xcoff_link_hash_lookup (xcoff_hash_table (info),
+ relname, true, copy,
+ false);
+ if (h == NULL)
+ goto error_return;
+
+ /* At this point h->root.type could be
+ bfd_link_hash_new. That should be OK,
+ since we know for sure that we will come
+ across this symbol as we step through the
+ file. */
+
+ /* We store h in *sym_hash for the
+ convenience of the relocate_section
+ function. */
+ *sym_hash = h;
+
+ if (h->toc_section != NULL) {
+ asection **rel_csects;
+
+ /* We already have a TOC entry for this
+ symbol, so we can just ignore this
+ one. */
+ rel_csects =
+ reloc_info[enclosing->target_index].csects;
+ rel_csects[relindx] = bfd_und_section_ptr;
+ break;
+ }
+
+ /* We are about to create a TOC entry for
+ this symbol. */
+ set_toc = h;
+ } /* merge toc reloc */
+ } /* c_ext */
+ } /* reloc */
+ } /* merge toc */
- /* We need to create a new section. We get the name from
- the csect storage mapping class, so that the linker can
- accumulate similar csects together. */
{
- static const char *csect_name_by_class[] =
- {
- ".pr", ".ro", ".db", ".tc", ".ua", ".rw", ".gl", ".xo",
- ".sv", ".bs", ".ds", ".uc", ".ti", ".tb", NULL, ".tc0",
- ".td"
- };
- const char *csect_name;
+
asection *enclosing;
- if ((aux.x_csect.x_smclas >=
- sizeof csect_name_by_class / sizeof csect_name_by_class[0])
- || csect_name_by_class[aux.x_csect.x_smclas] == NULL)
- {
- (*_bfd_error_handler)
- ("%s: symbol `%s' has unrecognized smclas %d",
- bfd_get_filename (abfd), name, aux.x_csect.x_smclas);
- bfd_set_error (bfd_error_bad_value);
- goto error_return;
- }
+ /* We need to create a new section. We get the name from
+ the csect storage mapping class, so that the linker can
+ accumulate similar csects together. */
- csect_name = csect_name_by_class[aux.x_csect.x_smclas];
- csect = bfd_make_section_anyway (abfd, csect_name);
- if (csect == NULL)
+ csect = bfd_xcoff_create_csect_from_smclas(abfd, &aux, name);
+ if (NULL == csect) {
goto error_return;
+ }
+
+ /*
+ * The enclosing section is the main section : .data, .text
+ * or .bss that the csect is coming from
+ */
enclosing = coff_section_from_bfd_index (abfd, sym.n_scnum);
if (enclosing == NULL)
goto error_return;
- if (! bfd_is_abs_section (enclosing)
- && ((bfd_vma) sym.n_value < enclosing->vma
- || ((bfd_vma) sym.n_value + aux.x_csect.x_scnlen.l
- > enclosing->vma + enclosing->_raw_size)))
- {
- (*_bfd_error_handler)
- ("%s: csect `%s' not in enclosing section",
- bfd_get_filename (abfd), name);
- bfd_set_error (bfd_error_bad_value);
- goto error_return;
- }
+
+ if (! bfd_is_abs_section (enclosing) &&
+ ((bfd_vma) sym.n_value < enclosing->vma ||
+ ((bfd_vma) sym.n_value + aux.x_csect.x_scnlen.l
+ > enclosing->vma + enclosing->_raw_size))) {
+ (*_bfd_error_handler)
+ (_("%s: csect `%s' not in enclosing section"),
+ bfd_get_filename (abfd), name);
+ bfd_set_error (bfd_error_bad_value);
+ goto error_return;
+ }
csect->vma = sym.n_value;
csect->filepos = (enclosing->filepos
+ sym.n_value
/* Record the enclosing section in the tdata for this new
section. */
csect->used_by_bfd =
- ((struct coff_section_tdata *)
- bfd_zalloc (abfd, sizeof (struct coff_section_tdata)));
+ (PTR) bfd_zalloc (abfd, sizeof (struct coff_section_tdata));
if (csect->used_by_bfd == NULL)
goto error_return;
coff_section_data (abfd, csect)->tdata =
xcoff_section_data (abfd, csect)->lineno_count =
enclosing->lineno_count;
- if (enclosing->owner == abfd)
- {
- struct internal_reloc *relocs;
- bfd_size_type relindx;
- struct internal_reloc *rel;
- asection **rel_csect;
-
- relocs = reloc_info[enclosing->target_index].relocs;
- relindx = xcoff_find_reloc (relocs, enclosing->reloc_count,
- csect->vma);
- rel = relocs + relindx;
- rel_csect = (reloc_info[enclosing->target_index].csects
- + relindx);
- csect->rel_filepos = (enclosing->rel_filepos
- + relindx * bfd_coff_relsz (abfd));
- while (relindx < enclosing->reloc_count
- && *rel_csect == NULL
- && rel->r_vaddr < csect->vma + csect->_raw_size)
- {
- *rel_csect = csect;
- csect->flags |= SEC_RELOC;
- ++csect->reloc_count;
- ++relindx;
- ++rel;
- ++rel_csect;
- }
+ if (enclosing->owner == abfd) {
+ struct internal_reloc *relocs;
+ bfd_size_type relindx;
+ struct internal_reloc *rel;
+ asection **rel_csect;
+
+ relocs = reloc_info[enclosing->target_index].relocs;
+ relindx = xcoff_find_reloc (relocs, enclosing->reloc_count,
+ csect->vma);
+
+ rel = relocs + relindx;
+ rel_csect = (reloc_info[enclosing->target_index].csects
+ + relindx);
+
+ csect->rel_filepos = (enclosing->rel_filepos
+ + relindx * bfd_coff_relsz (abfd));
+ while (relindx < enclosing->reloc_count &&
+ *rel_csect == NULL &&
+ rel->r_vaddr < csect->vma + csect->_raw_size) {
+
+ *rel_csect = csect;
+ csect->flags |= SEC_RELOC;
+ ++csect->reloc_count;
+ ++relindx;
+ ++rel;
+ ++rel_csect;
}
+ }
/* There are a number of other fields and section flags
which we do not bother to set. */
case XTY_LD:
/* This is a label definition. The x_scnlen field is the
- symbol index of the csect. I believe that this must
- always follow the appropriate XTY_SD symbol, so I will
- insist on it. */
+ symbol index of the csect. Usually the XTY_LD symbol will
+ follow its appropriate XTY_SD symbol. The .set pseudo op can
+ cause the XTY_LD to not follow the XTY_SD symbol. */
{
boolean bad;
if (bad)
{
(*_bfd_error_handler)
- ("%s: misplaced XTY_LD `%s'",
+ (_("%s: misplaced XTY_LD `%s'"),
bfd_get_filename (abfd), name);
bfd_set_error (bfd_error_bad_value);
goto error_return;
}
-
+ csect = section;
value = sym.n_value - csect->vma;
}
break;
case XTY_CM:
/* This is an unitialized csect. We could base the name on
- the storage mapping class, but we don't bother. If this
- csect is externally visible, it is a common symbol. */
+ the storage mapping class, but we don't bother except for
+ an XMC_TD symbol. If this csect is externally visible,
+ it is a common symbol. We put XMC_TD symbols in sections
+ named .tocbss, and rely on the linker script to put that
+ in the TOC area. */
if (csect != NULL)
{
/ symesz);
}
- csect = bfd_make_section_anyway (abfd, ".bss");
+ if (aux.x_csect.x_smclas == XMC_TD) {
+ /*
+ * The linker script puts the .td section in the data
+ * section after the .tc section
+ */
+ csect = bfd_make_section_anyway (abfd, ".td");
+
+ } else {
+ csect = bfd_make_section_anyway (abfd, ".bss");
+ }
if (csect == NULL)
goto error_return;
csect->vma = sym.n_value;
/ symesz);
csect->used_by_bfd =
- ((struct coff_section_tdata *)
- bfd_zalloc (abfd, sizeof (struct coff_section_tdata)));
+ (PTR) bfd_zalloc (abfd, sizeof (struct coff_section_tdata));
if (csect->used_by_bfd == NULL)
goto error_return;
coff_section_data (abfd, csect)->tdata =
}
/* Check for magic symbol names. */
- if ((smtyp == XTY_SD || smtyp == XTY_CM)
- && aux.x_csect.x_smclas != XMC_TC)
- {
- int i;
-
- i = -1;
- if (name[0] == '_')
- {
- if (strcmp (name, "_text") == 0)
- i = 0;
- else if (strcmp (name, "_etext") == 0)
- i = 1;
- else if (strcmp (name, "_data") == 0)
- i = 2;
- else if (strcmp (name, "_edata") == 0)
- i = 3;
- else if (strcmp (name, "_end") == 0)
- i = 4;
- }
- else if (name[0] == 'e' && strcmp (name, "end") == 0)
- i = 5;
-
- if (i != -1)
- xcoff_hash_table (info)->special_sections[i] = csect;
- }
+ if ((smtyp == XTY_SD || smtyp == XTY_CM) &&
+ (aux.x_csect.x_smclas != XMC_TC) &&
+ (aux.x_csect.x_smclas != XMC_TD)) {
+
+ int i = -1;
+
+ if (name[0] == '_') {
+ if (strcmp (name, "_text") == 0)
+ i = XCOFF_SPECIAL_SECTION_TEXT;
+ else if (strcmp (name, "_etext") == 0)
+ i = XCOFF_SPECIAL_SECTION_ETEXT;
+ else if (strcmp (name, "_data") == 0)
+ i = XCOFF_SPECIAL_SECTION_DATA;
+ else if (strcmp (name, "_edata") == 0)
+ i = XCOFF_SPECIAL_SECTION_EDATA;
+ else if (strcmp (name, "_end") == 0)
+ i = XCOFF_SPECIAL_SECTION_END;
+ } else if (name[0] == 'e' && strcmp (name, "end") == 0) {
+ i = XCOFF_SPECIAL_SECTION_END2;
+ }
+
+ if (i != -1) {
+ xcoff_hash_table (info)->special_sections[i] = csect;
+ }
+ }
/* Now we have enough information to add the symbol to the
linker hash table. */
|| sym._n._n_n._n_offset == 0)
copy = true;
- if (info->hash->creator == abfd->xvec)
+ /* The AIX linker appears to only detect multiple symbol
+ definitions when there is a reference to the symbol. If
+ a symbol is defined multiple times, and the only
+ references are from the same object file, the AIX linker
+ appears to permit it. It does not merge the different
+ definitions, but handles them independently. On the
+ other hand, if there is a reference, the linker reports
+ an error.
+
+ This matters because the AIX <net/net_globals.h> header
+ file actually defines an initialized array, so we have to
+ actually permit that to work.
+
+ Just to make matters even more confusing, the AIX linker
+ appears to permit multiple symbol definitions whenever
+ the second definition is in an archive rather than an
+ object file. This may be a consequence of the manner in
+ which it handles archives: I think it may load the entire
+ archive in as separate csects, and then let garbage
+ collection discard symbols.
+
+ We also have to handle the case of statically linking a
+ shared object, which will cause symbol redefinitions,
+ although this is an easier case to detect. */
+
+ if (info->hash->creator == abfd->xvec)
{
- /* If we are statically linking a shared object, it is
- OK for symbol redefinitions to occur. I can't figure
- out just what the XCOFF linker is doing, but
- something like this is required for -bnso to work. */
- *sym_hash = xcoff_link_hash_lookup (xcoff_hash_table (info),
- name, true, copy, false);
+ if (! bfd_is_und_section (section))
+ *sym_hash = xcoff_link_hash_lookup (xcoff_hash_table (info),
+ name, true, copy, false);
+ else
+ *sym_hash = ((struct xcoff_link_hash_entry *)
+ bfd_wrapped_link_hash_lookup (abfd, info, name,
+ true, copy, false));
if (*sym_hash == NULL)
goto error_return;
if (((*sym_hash)->root.type == bfd_link_hash_defined
&& ! bfd_is_und_section (section)
&& ! bfd_is_com_section (section))
{
- if ((abfd->flags & DYNAMIC) != 0)
+ /* This is a second definition of a defined symbol. */
+ if ((abfd->flags & DYNAMIC) != 0
+ && ((*sym_hash)->smclas != XMC_GL
+ || aux.x_csect.x_smclas == XMC_GL
+ || ((*sym_hash)->root.u.def.section->owner->flags
+ & DYNAMIC) == 0))
{
+ /* The new symbol is from a shared library, and
+ either the existing symbol is not global
+ linkage code or this symbol is global linkage
+ code. If the existing symbol is global
+ linkage code and the new symbol is not, then
+ we want to use the new symbol. */
section = bfd_und_section_ptr;
value = 0;
}
else if (((*sym_hash)->root.u.def.section->owner->flags
& DYNAMIC) != 0)
{
+ /* The existing symbol is from a shared library.
+ Replace it. */
(*sym_hash)->root.type = bfd_link_hash_undefined;
(*sym_hash)->root.u.undef.abfd =
(*sym_hash)->root.u.def.section->owner;
}
+ else if (abfd->my_archive != NULL)
+ {
+ /* This is a redefinition in an object contained
+ in an archive. Just ignore it. See the
+ comment above. */
+ section = bfd_und_section_ptr;
+ value = 0;
+ }
+ else if ((*sym_hash)->root.next != NULL
+ || info->hash->undefs_tail == &(*sym_hash)->root)
+ {
+ /* This symbol has been referenced. In this
+ case, we just continue and permit the
+ multiple definition error. See the comment
+ above about the behaviour of the AIX linker. */
+ }
+ else if ((*sym_hash)->smclas == aux.x_csect.x_smclas)
+ {
+ /* The symbols are both csects of the same
+ class. There is at least a chance that this
+ is a semi-legitimate redefinition. */
+ section = bfd_und_section_ptr;
+ value = 0;
+ (*sym_hash)->flags |= XCOFF_MULTIPLY_DEFINED;
+ }
+ }
+ else if (((*sym_hash)->flags & XCOFF_MULTIPLY_DEFINED) != 0
+ && ((*sym_hash)->root.type == bfd_link_hash_defined
+ || (*sym_hash)->root.type == bfd_link_hash_defweak)
+ && (bfd_is_und_section (section)
+ || bfd_is_com_section (section)))
+ {
+ /* This is a reference to a multiply defined symbol.
+ Report the error now. See the comment above
+ about the behaviour of the AIX linker. We could
+ also do this with warning symbols, but I'm not
+ sure the XCOFF linker is wholly prepared to
+ handle them, and that would only be a warning,
+ not an error. */
+ if (! ((*info->callbacks->multiple_definition)
+ (info, (*sym_hash)->root.root.string,
+ (bfd *) NULL, (asection *) NULL, 0,
+ (*sym_hash)->root.u.def.section->owner,
+ (*sym_hash)->root.u.def.section,
+ (*sym_hash)->root.u.def.value)))
+ goto error_return;
+ /* Try not to give this error too many times. */
+ (*sym_hash)->flags &= ~XCOFF_MULTIPLY_DEFINED;
}
}
}
}
- if (info->hash->creator == abfd->xvec)
+ if (info->hash->creator == abfd->xvec)
{
int flag;
/* Make sure that we have seen all the relocs. */
for (o = abfd->sections; o != first_csect; o = o->next)
{
- /* Reset the section size and the line numebr count, since the
+ /* Reset the section size and the line number count, since the
data is now attached to the csects. Don't reset the size of
the .debug section, since we need to read it below in
bfd_xcoff_size_dynamic_sections. */
rel = reloc_info[o->target_index].relocs;
rel_csect = reloc_info[o->target_index].csects;
+
for (i = 0; i < o->reloc_count; i++, rel++, rel_csect++)
{
+
if (*rel_csect == NULL)
{
(*_bfd_error_handler)
- ("%s: reloc %s:%d not in csect",
+ (_("%s: reloc %s:%d not in csect"),
bfd_get_filename (abfd), o->name, i);
bfd_set_error (bfd_error_bad_value);
goto error_return;
/* We identify all symbols which are called, so that we
can create glue code for calls to functions imported
from dynamic objects. */
- if (info->hash->creator == abfd->xvec
+ if (info->hash->creator == abfd->xvec
&& *rel_csect != bfd_und_section_ptr
&& (rel->r_type == R_BR
|| rel->r_type == R_RBR)
struct bfd_link_info *info;
{
asection *lsec;
- bfd_byte *buf = NULL;
+ bfd_byte *contents;
struct internal_ldhdr ldhdr;
const char *strings;
- struct external_ldsym *elsym, *elsymend;
+ bfd_byte *elsym, *elsymend;
struct xcoff_import_file *n;
const char *bname;
const char *mname;
/* We can only handle a dynamic object if we are generating an XCOFF
output file. */
- if (info->hash->creator != abfd->xvec)
+ if (info->hash->creator != abfd->xvec)
{
(*_bfd_error_handler)
- ("%s: XCOFF shared object when not producing XCOFF output",
+ (_("%s: XCOFF shared object when not producing XCOFF output"),
bfd_get_filename (abfd));
- bfd_set_error (bfd_error_invalid_operation);
- goto error_return;
+ bfd_set_error (bfd_error_invalid_operation);
+ return false;
}
-
+
/* The symbols we use from a dynamic object are not the symbols in
the normal symbol table, but, rather, the symbols in the export
table. If there is a global symbol in a dynamic object which is
if (lsec == NULL)
{
(*_bfd_error_handler)
- ("%s: dynamic object with no .loader section",
+ (_("%s: dynamic object with no .loader section"),
bfd_get_filename (abfd));
bfd_set_error (bfd_error_no_symbols);
- goto error_return;
+ return false;
}
- buf = (bfd_byte *) bfd_malloc (lsec->_raw_size);
- if (buf == NULL && lsec->_raw_size > 0)
- goto error_return;
- if (! bfd_get_section_contents (abfd, lsec, (PTR) buf, (file_ptr) 0,
- lsec->_raw_size))
- goto error_return;
+ if (! xcoff_get_section_contents (abfd, lsec))
+ return false;
+ contents = coff_section_data (abfd, lsec)->contents;
/* Remove the sections from this object, so that they do not get
included in the link. */
abfd->sections = NULL;
- xcoff_swap_ldhdr_in (abfd, (struct external_ldhdr *) buf, &ldhdr);
+ bfd_xcoff_swap_ldhdr_in (abfd, contents, &ldhdr);
+
+ strings = (char *) contents + ldhdr.l_stoff;
- strings = (char *) buf + ldhdr.l_stoff;
+ elsym = contents + bfd_xcoff_loader_symbol_offset(abfd, &ldhdr);
- elsym = (struct external_ldsym *) (buf + LDHDRSZ);
- elsymend = elsym + ldhdr.l_nsyms;
- BFD_ASSERT (sizeof (struct external_ldsym) == LDSYMSZ);
- for (; elsym < elsymend; elsym++)
+ elsymend = elsym + ldhdr.l_nsyms * bfd_xcoff_ldsymsz(abfd);
+
+ for (; elsym < elsymend; elsym += bfd_xcoff_ldsymsz(abfd))
{
struct internal_ldsym ldsym;
char nambuf[SYMNMLEN + 1];
const char *name;
struct xcoff_link_hash_entry *h;
- xcoff_swap_ldsym_in (abfd, elsym, &ldsym);
+ bfd_xcoff_swap_ldsym_in (abfd, elsym, &ldsym);
/* We are only interested in exported symbols. */
if ((ldsym.l_smtype & L_EXPORT) == 0)
name = nambuf;
}
- /* Normally we could not xcoff_link_hash_lookup in an add
+ /* Normally we could not call xcoff_link_hash_lookup in an add
symbols routine, since we might not be using an XCOFF hash
table. However, we verified above that we are using an XCOFF
hash table. */
h = xcoff_link_hash_lookup (xcoff_hash_table (info), name, true,
true, true);
if (h == NULL)
- goto error_return;
+ return false;
h->flags |= XCOFF_DEF_DYNAMIC;
h->root.u.def.section = bfd_abs_section_ptr;
h->root.u.def.value = ldsym.l_value;
}
+
+ /* If this symbol defines a function descriptor, then it
+ implicitly defines the function code as well. */
+ if (h->smclas == XMC_DS
+ || (h->smclas == XMC_XO && name[0] != '.'))
+ h->flags |= XCOFF_DESCRIPTOR;
+ if ((h->flags & XCOFF_DESCRIPTOR) != 0)
+ {
+ struct xcoff_link_hash_entry *hds;
+
+ hds = h->descriptor;
+ if (hds == NULL)
+ {
+ char *dsnm;
+
+ dsnm = bfd_malloc (strlen (name) + 2);
+ if (dsnm == NULL)
+ return false;
+ dsnm[0] = '.';
+ strcpy (dsnm + 1, name);
+ hds = xcoff_link_hash_lookup (xcoff_hash_table (info), dsnm,
+ true, true, true);
+ free (dsnm);
+ if (hds == NULL)
+ return false;
+
+ if (hds->root.type == bfd_link_hash_new)
+ {
+ hds->root.type = bfd_link_hash_undefined;
+ hds->root.u.undef.abfd = abfd;
+ /* We do not want to add this to the undefined
+ symbol list. */
+ }
+
+ hds->descriptor = h;
+ h->descriptor = hds;
+ }
+
+ hds->flags |= XCOFF_DEF_DYNAMIC;
+ if (hds->smclas == XMC_UA)
+ hds->smclas = XMC_PR;
+
+ /* An absolute symbol appears to actually define code, not a
+ function descriptor. This is how some math functions are
+ implemented on AIX 4.1. */
+ if (h->smclas == XMC_XO
+ && (hds->root.type == bfd_link_hash_undefined
+ || hds->root.type == bfd_link_hash_undefweak))
+ {
+ hds->smclas = XMC_XO;
+ hds->root.type = bfd_link_hash_defined;
+ hds->root.u.def.section = bfd_abs_section_ptr;
+ hds->root.u.def.value = ldsym.l_value;
+ }
+ }
}
- if (buf != NULL)
+ if (contents != NULL && ! coff_section_data (abfd, lsec)->keep_contents)
{
- free (buf);
- buf = NULL;
+ free (coff_section_data (abfd, lsec)->contents);
+ coff_section_data (abfd, lsec)->contents = NULL;
}
/* Record this file in the import files. */
n = ((struct xcoff_import_file *)
bfd_alloc (abfd, sizeof (struct xcoff_import_file)));
if (n == NULL)
- goto error_return;
+ return false;
n->next = NULL;
/* For some reason, the path entry in the import file list for a
xcoff_data (abfd)->import_file_id = c;
return true;
-
- error_return:
- if (buf != NULL)
- free (buf);
- return false;
}
\f
/* Routines that are called after all the input files have been
struct bfd_link_info *info;
struct xcoff_link_hash_entry *h;
{
+
if ((h->flags & XCOFF_MARK) != 0)
return true;
asection *hsec;
hsec = h->root.u.def.section;
- if ((hsec->flags & SEC_MARK) == 0)
+ if (! bfd_is_abs_section (hsec)
+ && (hsec->flags & SEC_MARK) == 0)
{
if (! xcoff_mark (info, hsec))
return false;
struct bfd_link_info *info;
asection *sec;
{
- if ((sec->flags & SEC_MARK) != 0)
+ if (bfd_is_abs_section (sec)
+ || (sec->flags & SEC_MARK) != 0)
return true;
sec->flags |= SEC_MARK;
&& h->root.root.string[0] == '.'
&& h->descriptor != NULL
&& ((h->descriptor->flags & XCOFF_DEF_DYNAMIC) != 0
- || info->shared)))
+ || ((h->descriptor->flags & XCOFF_IMPORT) != 0
+ && (h->descriptor->flags
+ & XCOFF_DEF_REGULAR) == 0))))
break;
/* Fall through. */
case R_POS:
struct xcoff_link_hash_entry *h = (struct xcoff_link_hash_entry *) harg;
struct xcoff_link_size_list *n;
- if (! XCOFF_XVECP (output_bfd->xvec))
+ if (bfd_get_flavour (output_bfd) != bfd_target_xcoff_flavour)
return true;
/* This will hardly ever be called. I don't want to burn four bytes
boolean
bfd_xcoff_import_symbol (output_bfd, info, harg, val, imppath, impfile,
- impmember)
+ impmember, syscall_flag)
bfd *output_bfd;
struct bfd_link_info *info;
struct bfd_link_hash_entry *harg;
const char *imppath;
const char *impfile;
const char *impmember;
+ unsigned int syscall_flag;
{
struct xcoff_link_hash_entry *h = (struct xcoff_link_hash_entry *) harg;
- if (! XCOFF_XVECP (output_bfd->xvec))
+ if (bfd_get_flavour (output_bfd) != bfd_target_xcoff_flavour)
return true;
- h->flags |= XCOFF_IMPORT;
+ /* A symbol name which starts with a period is the code for a
+ function. If the symbol is undefined, then add an undefined
+ symbol for the function descriptor, and import that instead. */
+ if (h->root.root.string[0] == '.'
+ && h->root.type == bfd_link_hash_undefined
+ && val == (bfd_vma) -1)
+ {
+ struct xcoff_link_hash_entry *hds;
+
+ hds = h->descriptor;
+ if (hds == NULL)
+ {
+ hds = xcoff_link_hash_lookup (xcoff_hash_table (info),
+ h->root.root.string + 1,
+ true, false, true);
+ if (hds == NULL)
+ return false;
+ if (hds->root.type == bfd_link_hash_new)
+ {
+ hds->root.type = bfd_link_hash_undefined;
+ hds->root.u.undef.abfd = h->root.u.undef.abfd;
+ }
+ hds->flags |= XCOFF_DESCRIPTOR;
+ BFD_ASSERT ((hds->flags & XCOFF_CALLED) == 0
+ && (h->flags & XCOFF_DESCRIPTOR) == 0);
+ hds->descriptor = h;
+ h->descriptor = hds;
+ }
+
+ /* Now, if the descriptor is undefined, import the descriptor
+ rather than the symbol we were told to import. FIXME: Is
+ this correct in all cases? */
+ if (hds->root.type == bfd_link_hash_undefined)
+ h = hds;
+ }
+
+ h->flags |= (XCOFF_IMPORT | syscall_flag);
if (val != (bfd_vma) -1)
{
h->root.u.def.value = val;
}
- if (h->ldsym == NULL)
- {
- h->ldsym = ((struct internal_ldsym *)
- bfd_zalloc (output_bfd, sizeof (struct internal_ldsym)));
- if (h->ldsym == NULL)
- return false;
- }
-
+ /* We overload the ldindx field to hold the l_ifile value for this
+ symbol. */
+ BFD_ASSERT (h->ldsym == NULL);
+ BFD_ASSERT ((h->flags & XCOFF_BUILT_LDSYM) == 0);
if (imppath == NULL)
- h->ldsym->l_ifile = (bfd_size_type) -1;
+ h->ldindx = -1;
else
{
unsigned int c;
*pp = n;
}
- h->ldsym->l_ifile = c;
+ h->ldindx = c;
}
return true;
/* Export a symbol. */
boolean
-bfd_xcoff_export_symbol (output_bfd, info, harg, syscall)
+bfd_xcoff_export_symbol (output_bfd, info, harg)
bfd *output_bfd;
struct bfd_link_info *info;
struct bfd_link_hash_entry *harg;
- boolean syscall;
{
struct xcoff_link_hash_entry *h = (struct xcoff_link_hash_entry *) harg;
- if (! XCOFF_XVECP (output_bfd->xvec))
+ if (bfd_get_flavour (output_bfd) != bfd_target_xcoff_flavour)
return true;
h->flags |= XCOFF_EXPORT;
{
struct xcoff_link_hash_entry *h;
- if (! XCOFF_XVECP (output_bfd->xvec))
+ if (bfd_get_flavour (output_bfd) != bfd_target_xcoff_flavour)
return true;
- h = xcoff_link_hash_lookup (xcoff_hash_table (info), name, false, false,
- false);
+ h = ((struct xcoff_link_hash_entry *)
+ bfd_wrapped_link_hash_lookup (output_bfd, info, name, false, false,
+ false));
if (h == NULL)
{
- (*_bfd_error_handler) ("%s: no such symbol", name);
+ (*_bfd_error_handler) (_("%s: no such symbol"), name);
bfd_set_error (bfd_error_no_symbols);
return false;
}
h->flags |= XCOFF_REF_REGULAR | XCOFF_LDREL;
++xcoff_hash_table (info)->ldrel_count;
-
+
/* Mark the symbol to avoid garbage collection. */
if (! xcoff_mark_symbol (info, h))
return false;
{
struct xcoff_link_hash_entry *h;
- if (! XCOFF_XVECP (output_bfd->xvec))
+ if (bfd_get_flavour (output_bfd) != bfd_target_xcoff_flavour)
return true;
h = xcoff_link_hash_lookup (xcoff_hash_table (info), name, true, true,
return true;
}
-/* This structure is used to pass information through
- xcoff_link_hash_traverse. */
-
-struct xcoff_loader_info
-{
- /* Set if a problem occurred. */
- boolean failed;
- /* Output BFD. */
- bfd *output_bfd;
- /* Link information structure. */
- struct bfd_link_info *info;
- /* Whether all defined symbols should be exported. */
- boolean export_defineds;
- /* Number of ldsym structures. */
- size_t ldsym_count;
- /* Size of string table. */
- size_t string_size;
- /* String table. */
- bfd_byte *strings;
- /* Allocated size of string table. */
- size_t string_alc;
-};
-
/* Build the .loader section. This is called by the XCOFF linker
emulation before_allocation routine. We must set the size of the
.loader section before the linker lays out the output file.
struct bfd_strtab_hash *debug_strtab;
bfd_byte *debug_contents = NULL;
- if (! XCOFF_XVECP (output_bfd->xvec))
- {
- for (i = 0; i < 6; i++)
- special_sections[i] = NULL;
- return true;
- }
+ if (bfd_get_flavour (output_bfd) != bfd_target_xcoff_flavour) {
+
+ for (i = 0; i < XCOFF_NUMBER_OF_SPECIAL_SECTIONS; i++)
+ special_sections[i] = NULL;
+ return true;
+ }
ldinfo.failed = false;
ldinfo.output_bfd = output_bfd;
xcoff_hash_table (info)->file_align = file_align;
xcoff_hash_table (info)->textro = textro;
- hentry = xcoff_link_hash_lookup (xcoff_hash_table (info), entry,
- false, false, true);
- if (hentry != NULL)
- {
+ if (entry == NULL) {
+ hentry = NULL;
+ } else {
+ hentry = xcoff_link_hash_lookup (xcoff_hash_table (info), entry,
+ false, false, true);
+ if (hentry != NULL)
hentry->flags |= XCOFF_ENTRY;
- if (hentry->root.type == bfd_link_hash_defined
- || hentry->root.type == bfd_link_hash_defweak)
- xcoff_data (output_bfd)->entry_section =
- hentry->root.u.def.section->output_section;
+ }
+
+ /* __rtinit */
+ if (info->init_function || info->fini_function) {
+ struct xcoff_link_hash_entry *hrtinit;
+ struct internal_ldsym *ldsym;
+
+ hrtinit = xcoff_link_hash_lookup (xcoff_hash_table (info),
+ "__rtinit",
+ false, false, true);
+ if (hrtinit != NULL) {
+ xcoff_mark_symbol (info, hrtinit);
+ hrtinit->flags |= (XCOFF_DEF_REGULAR | XCOFF_RTINIT);
+ } else {
+ (*_bfd_error_handler)
+ (_("error: undefined symbol __rtinit"));
+
+ return false;
+ }
+
+ /*
+ *
+ * __rtinit initalized here
+ * Some information, like the location of the .initfini seciton will
+ * be filled in later
+ *
+ * name or offset taken case of below with bfd_xcoff_put_ldsymbol_name
+ */
+ ldsym = (struct internal_ldsym *)
+ bfd_malloc(sizeof (struct internal_ldsym));
+
+ ldsym->l_value = 0; /* will be filled in later */
+ ldsym->l_scnum = 2; /* data section */
+ ldsym->l_smtype = XTY_SD; /* csect section definition */
+ ldsym->l_smclas = 5; /* .rw */
+ ldsym->l_ifile = 0; /* special system loader symbol */
+ ldsym->l_parm = 0; /* NA */
+
+ /*
+ * Force __rtinit to be the first symbol in the loader symbol table
+ * See xcoff_build_ldsyms
+ *
+ * The first 3 symbol table indices are reserved to indicate the data,
+ * text and bss sections.
+ */
+ BFD_ASSERT (0 == ldinfo.ldsym_count);
+
+ hrtinit->ldindx = 3;
+ ldinfo.ldsym_count = 1;
+ hrtinit->ldsym = ldsym;
+
+ if (false == bfd_xcoff_put_ldsymbol_name (ldinfo.output_bfd, &ldinfo,
+ hrtinit->ldsym,
+ hrtinit->root.root.string)) {
+ return false;
}
+ /*
+ * This symbol is written out by xcoff_write_global_symbol
+ * Set stuff up so xcoff_write_global_symbol logic works.
+ */
+ hrtinit->flags |= XCOFF_DEF_REGULAR | XCOFF_MARK;
+ hrtinit->root.type = bfd_link_hash_defined;
+ hrtinit->root.u.def.value = 0;
+ }
+
/* Garbage collect unused sections. */
if (info->relocateable
|| ! gc
}
/* Return special sections to the caller. */
- for (i = 0; i < 6; i++)
- {
- asection *sec;
-
- sec = xcoff_hash_table (info)->special_sections[i];
- if (sec != NULL
- && gc
- && (sec->flags & SEC_MARK) == 0)
- sec = NULL;
- special_sections[i] = sec;
+ for (i = 0; i < XCOFF_NUMBER_OF_SPECIAL_SECTIONS; i++) {
+ asection *sec;
+
+ sec = xcoff_hash_table (info)->special_sections[i];
+
+ if ((sec != NULL) &&
+ (gc && (sec->flags & SEC_MARK) == 0)) {
+ sec = NULL;
}
+ special_sections[i] = sec;
+ }
- if (info->input_bfds == NULL)
- {
- /* I'm not sure what to do in this bizarre case. */
- return true;
- }
+ if (info->input_bfds == NULL) {
+ /* I'm not sure what to do in this bizarre case. */
+ return true;
+ }
xcoff_link_hash_traverse (xcoff_hash_table (info), xcoff_build_ldsyms,
(PTR) &ldinfo);
/* Set up the .loader section header. */
ldhdr = &xcoff_hash_table (info)->ldhdr;
- ldhdr->l_version = 1;
+ ldhdr->l_version = bfd_xcoff_ldhdr_version(output_bfd);
ldhdr->l_nsyms = ldinfo.ldsym_count;
ldhdr->l_nreloc = xcoff_hash_table (info)->ldrel_count;
ldhdr->l_istlen = impsize;
ldhdr->l_nimpid = impcount;
- ldhdr->l_impoff = (LDHDRSZ
- + ldhdr->l_nsyms * LDSYMSZ
- + ldhdr->l_nreloc * LDRELSZ);
+ ldhdr->l_impoff = (bfd_xcoff_ldhdrsz(output_bfd)
+ + ldhdr->l_nsyms * bfd_xcoff_ldsymsz(output_bfd)
+ + ldhdr->l_nreloc * bfd_xcoff_ldrelsz(output_bfd));
ldhdr->l_stlen = ldinfo.string_size;
stoff = ldhdr->l_impoff + impsize;
if (ldinfo.string_size == 0)
else
ldhdr->l_stoff = stoff;
+ /*
+ * 64 bit elements to ldhdr
+ * The swap out routine for 32 bit will ignore them.
+ * Nothing fancy, symbols come after the header and relocs come after symbols
+ */
+ ldhdr->l_symoff = bfd_xcoff_ldhdrsz(output_bfd);
+ ldhdr->l_rldoff = bfd_xcoff_ldhdrsz(output_bfd) +
+ (ldhdr->l_nsyms * bfd_xcoff_ldsymsz(output_bfd));
+
/* We now know the final size of the .loader section. Allocate
space for it. */
lsec = xcoff_hash_table (info)->loader_section;
goto error_return;
/* Set up the header. */
- xcoff_swap_ldhdr_out (output_bfd, ldhdr,
- (struct external_ldhdr *) lsec->contents);
+ bfd_xcoff_swap_ldhdr_out (output_bfd, ldhdr, lsec->contents);
/* Set up the import file names. */
out = (char *) lsec->contents + ldhdr->l_impoff;
symbols are written out in xcoff_link_input_bfd or
xcoff_write_global_symbol. The .loader relocs are written out
when the corresponding normal relocs are handled in
- xcoff_link_input_bfd. */
+ xcoff_link_input_bfd.
+ */
/* Allocate space for the magic sections. */
sec = xcoff_hash_table (info)->linkage_section;
xcoff_data (sub)->debug_indices = debug_index;
/* Grab the contents of the .debug section. We use malloc and
- copy the neams into the debug stringtab, rather than
+ copy the names into the debug stringtab, rather than
bfd_alloc, because I expect that, when linking many files
together, many of the strings will be the same. Storing the
strings in the hash table should save space in this case. */
}
}
- xcoff_hash_table (info)->debug_section->_raw_size =
- _bfd_stringtab_size (debug_strtab);
+ if (info->strip != strip_all)
+ xcoff_hash_table (info)->debug_section->_raw_size =
+ _bfd_stringtab_size (debug_strtab);
return true;
PTR p;
{
struct xcoff_loader_info *ldinfo = (struct xcoff_loader_info *) p;
- size_t len;
+
+ /*
+ * __rtinit
+ * Special handling of this symbol to make is the first symbol in the
+ * loader symbol table. Make sure this pass through does not undo it
+ */
+ if (h->flags & XCOFF_RTINIT) {
+ return true;
+ }
+
+ /* If this is a final link, and the symbol was defined as a common
+ symbol in a regular object file, and there was no definition in
+ any dynamic object, then the linker will have allocated space for
+ the symbol in a common section but the XCOFF_DEF_REGULAR flag
+ will not have been set. */
+ if (h->root.type == bfd_link_hash_defined
+ && (h->flags & XCOFF_DEF_REGULAR) == 0
+ && (h->flags & XCOFF_REF_REGULAR) != 0
+ && (h->flags & XCOFF_DEF_DYNAMIC) == 0
+ && (bfd_is_abs_section (h->root.u.def.section)
+ || (h->root.u.def.section->owner->flags & DYNAMIC) == 0))
+ h->flags |= XCOFF_DEF_REGULAR;
- /* If all defined symbols should be exported, mark them now. */
+ /* If all defined symbols should be exported, mark them now. We
+ don't want to export the actual functions, just the function
+ descriptors. */
if (ldinfo->export_defineds
- && (h->flags & XCOFF_DEF_REGULAR) != 0)
- h->flags |= XCOFF_EXPORT;
+ && (h->flags & XCOFF_DEF_REGULAR) != 0
+ && h->root.root.string[0] != '.')
+ {
+ boolean export;
+
+ /* We don't export a symbol which is being defined by an object
+ included from an archive which contains a shared object. The
+ rationale is that if an archive contains both an unshared and
+ a shared object, then there must be some reason that the
+ unshared object is unshared, and we don't want to start
+ providing a shared version of it. In particular, this solves
+ a bug involving the _savefNN set of functions. gcc will call
+ those functions without providing a slot to restore the TOC,
+ so it is essential that these functions be linked in directly
+ and not from a shared object, which means that a shared
+ object which also happens to link them in must not export
+ them. This is confusing, but I haven't been able to think of
+ a different approach. Note that the symbols can, of course,
+ be exported explicitly. */
+ export = true;
+ if ((h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak)
+ && h->root.u.def.section->owner != NULL
+ && h->root.u.def.section->owner->my_archive != NULL)
+ {
+ bfd *arbfd, *member;
+
+ arbfd = h->root.u.def.section->owner->my_archive;
+ member = bfd_openr_next_archived_file (arbfd, (bfd *) NULL);
+ while (member != NULL)
+ {
+ if ((member->flags & DYNAMIC) != 0)
+ {
+ export = false;
+ break;
+ }
+ member = bfd_openr_next_archived_file (arbfd, member);
+ }
+ }
+
+ if (export)
+ h->flags |= XCOFF_EXPORT;
+ }
/* We don't want to garbage collect symbols which are not defined in
XCOFF files. This is a convenient place to mark them. */
!= ldinfo->info->hash->creator)))
h->flags |= XCOFF_MARK;
- /* If this symbol is called and defined in a dynamic object, or not
- defined at all when building a shared object, then we need to set
- up global linkage code for it. (Unless we did garbage collection
- and we didn't need this symbol.) */
+ /* If this symbol is called and defined in a dynamic object, or it
+ is imported, then we need to set up global linkage code for it.
+ (Unless we did garbage collection and we didn't need this
+ symbol.) */
if ((h->flags & XCOFF_CALLED) != 0
&& (h->root.type == bfd_link_hash_undefined
|| h->root.type == bfd_link_hash_undefweak)
&& h->root.root.string[0] == '.'
&& h->descriptor != NULL
&& ((h->descriptor->flags & XCOFF_DEF_DYNAMIC) != 0
- || ldinfo->info->shared)
+ || ((h->descriptor->flags & XCOFF_IMPORT) != 0
+ && (h->descriptor->flags & XCOFF_DEF_REGULAR) == 0))
&& (! xcoff_hash_table (ldinfo->info)->gc
|| (h->flags & XCOFF_MARK) != 0))
{
h->root.u.def.value = sec->_raw_size;
h->smclas = XMC_GL;
h->flags |= XCOFF_DEF_REGULAR;
- sec->_raw_size += XCOFF_GLINK_SIZE;
+ sec->_raw_size += bfd_xcoff_glink_code_size(ldinfo->output_bfd);
/* The global linkage code requires a TOC entry for the
descriptor. */
|| hds->root.type == bfd_link_hash_undefweak)
&& (hds->flags & XCOFF_DEF_REGULAR) == 0);
hds->flags |= XCOFF_MARK;
- if (hds->toc_section == NULL)
- {
- hds->toc_section = xcoff_hash_table (ldinfo->info)->toc_section;
- hds->u.toc_offset = hds->toc_section->_raw_size;
- hds->toc_section->_raw_size += 4;
- ++xcoff_hash_table (ldinfo->info)->ldrel_count;
- ++hds->toc_section->reloc_count;
- hds->indx = -2;
- hds->flags |= XCOFF_SET_TOC | XCOFF_LDREL;
-
- /* We need to call xcoff_build_ldsyms recursively here,
- because we may already have passed hds on the traversal. */
- xcoff_build_ldsyms (hds, p);
+ if (hds->toc_section == NULL) {
+ int byte_size;
+
+ /*
+ * 32 vs 64
+ * xcoff32 uses 4 bytes in the toc
+ * xcoff64 uses 8 bytes in the toc
+ */
+ if (bfd_xcoff_is_xcoff64(ldinfo->output_bfd)) {
+ byte_size = 8;
+ } else if (bfd_xcoff_is_xcoff32(ldinfo->output_bfd)) {
+ byte_size = 4;
+ } else {
+ return false;
}
+
+ hds->toc_section = xcoff_hash_table (ldinfo->info)->toc_section;
+ hds->u.toc_offset = hds->toc_section->_raw_size;
+ hds->toc_section->_raw_size += byte_size;
+ ++xcoff_hash_table (ldinfo->info)->ldrel_count;
+ ++hds->toc_section->reloc_count;
+ hds->indx = -2;
+ hds->flags |= XCOFF_SET_TOC | XCOFF_LDREL;
+
+ /*
+ * We need to call xcoff_build_ldsyms recursively here,
+ * because we may already have passed hds on the traversal.
+ */
+ xcoff_build_ldsyms (hds, p);
+ }
}
/* If this symbol is exported, but not defined, we need to try to
h->root.u.def.value = sec->_raw_size;
h->smclas = XMC_DS;
h->flags |= XCOFF_DEF_REGULAR;
- sec->_raw_size += 12;
- /* A function descriptor uses two relocs: one for the
- associated code, and one for the TOC address. */
+ /*
+ * The size of the function descriptor depends if this is an
+ * xcoff32 (12) or xcoff64 (24)
+ */
+ sec->_raw_size +=
+ bfd_xcoff_function_descriptor_size(ldinfo->output_bfd);
+
+ /*
+ * A function descriptor uses two relocs: one for the
+ * associated code, and one for the TOC address.
+ */
xcoff_hash_table (ldinfo->info)->ldrel_count += 2;
sec->reloc_count += 2;
- /* We handle writing out the contents of the descriptor in
- xcoff_write_global_symbol. */
+ /*
+ * We handle writing out the contents of the descriptor in
+ * xcoff_write_global_symbol.
+ */
}
else
{
(*_bfd_error_handler)
- ("attempt to export undefined symbol `%s'",
+ (_("warning: attempt to export undefined symbol `%s'"),
h->root.root.string);
- ldinfo->failed = true;
- bfd_set_error (bfd_error_invalid_operation);
- return false;
+ h->ldsym = NULL;
+ return true;
}
}
/* We need to add this symbol to the .loader symbols. */
- /* h->ldsym will already have been allocated for an explicitly
- imported symbol. */
+ BFD_ASSERT (h->ldsym == NULL);
+ h->ldsym = ((struct internal_ldsym *)
+ bfd_zalloc (ldinfo->output_bfd,
+ sizeof (struct internal_ldsym)));
if (h->ldsym == NULL)
- {
- h->ldsym = ((struct internal_ldsym *)
- bfd_zalloc (ldinfo->output_bfd,
- sizeof (struct internal_ldsym)));
- if (h->ldsym == NULL)
- {
- ldinfo->failed = true;
- return false;
- }
+ {
+ ldinfo->failed = true;
+ return false;
}
- /* The first 3 symbol table indices are reserved to indicate the
- sections. */
+ if ((h->flags & XCOFF_IMPORT) != 0)
+ h->ldsym->l_ifile = h->ldindx;
+
+ /*
+ * The first 3 symbol table indices are reserved to indicate the data,
+ * text and bss sections.
+ */
h->ldindx = ldinfo->ldsym_count + 3;
++ldinfo->ldsym_count;
- len = strlen (h->root.root.string);
- if (len <= SYMNMLEN)
- strncpy (h->ldsym->_l._l_name, h->root.root.string, SYMNMLEN);
- else
- {
- if (ldinfo->string_size + len + 3 > ldinfo->string_alc)
- {
- size_t newalc;
- bfd_byte *newstrings;
-
- newalc = ldinfo->string_alc * 2;
- if (newalc == 0)
- newalc = 32;
- while (ldinfo->string_size + len + 3 > newalc)
- newalc *= 2;
-
- newstrings = ((bfd_byte *)
- bfd_realloc ((PTR) ldinfo->strings, newalc));
- if (newstrings == NULL)
- {
- ldinfo->failed = true;
- return false;
- }
- ldinfo->string_alc = newalc;
- ldinfo->strings = newstrings;
- }
-
- bfd_put_16 (ldinfo->output_bfd, len + 1,
- ldinfo->strings + ldinfo->string_size);
- strcpy (ldinfo->strings + ldinfo->string_size + 2, h->root.root.string);
- h->ldsym->_l._l_l._l_zeroes = 0;
- h->ldsym->_l._l_l._l_offset = ldinfo->string_size + 2;
- ldinfo->string_size += len + 3;
- }
+ if (false == bfd_xcoff_put_ldsymbol_name (ldinfo->output_bfd, ldinfo,
+ h->ldsym,
+ h->root.root.string)) {
+ return false;
+ }
h->flags |= XCOFF_BUILT_LDSYM;
finfo.contents = NULL;
finfo.external_relocs = NULL;
- finfo.ldsym = ((struct external_ldsym *)
- (xcoff_hash_table (info)->loader_section->contents
- + LDHDRSZ));
- finfo.ldrel = ((struct external_ldrel *)
- (xcoff_hash_table (info)->loader_section->contents
- + LDHDRSZ
- + xcoff_hash_table (info)->ldhdr.l_nsyms * LDSYMSZ));
+ finfo.ldsym = xcoff_hash_table (info)->loader_section->contents +
+ bfd_xcoff_ldhdrsz(abfd);
+ finfo.ldrel = xcoff_hash_table (info)->loader_section->contents +
+ bfd_xcoff_ldhdrsz(abfd) +
+ xcoff_hash_table (info)->ldhdr.l_nsyms * bfd_xcoff_ldsymsz(abfd);
xcoff_data (abfd)->coff.link_info = info;
sec = p->u.indirect.section;
+ /* Mark all sections which are to be included in the
+ link. This will normally be every section. We need
+ to do this so that we can identify any sections which
+ the linker has decided to not include. */
+ sec->linker_mark = true;
+
if (info->strip == strip_none
|| info->strip == strip_some)
o->lineno_count += sec->lineno_count;
saw_contents = true;
for (op = &abfd->sections; *op != NULL; op = &(*op)->next)
{
- (*op)->target_index = indx;
if (strcmp ((*op)->name, ".pad") == 0)
saw_contents = false;
else if (((*op)->flags & SEC_HAS_CONTENTS) != 0
sofar = bfd_coff_filhsz (abfd);
sofar += bfd_coff_aoutsz (abfd);
sofar += abfd->section_count * bfd_coff_scnhsz (abfd);
- for (o = abfd->sections; o != NULL; o = o->next)
- if (o->reloc_count >= 0xffff || o->lineno_count >= 0xffff)
- sofar += bfd_coff_scnhsz (abfd);
+ for (o = abfd->sections; o != NULL; o = o->next) {
+ if ((true ==
+ bfd_xcoff_is_reloc_count_overflow(abfd, o->reloc_count)) ||
+ (true ==
+ bfd_xcoff_is_lineno_count_overflow(abfd, o->lineno_count))) {
+ /* 64 does not overflow, need to check if 32 does */
+ sofar += bfd_coff_scnhsz (abfd);
+ }
+ }
for (o = abfd->sections; o != NULL; o = o->next)
{
if (strcmp (o->name, ".pad") == 0)
}
}
- bfd_coff_compute_section_file_positions (abfd);
+ if (! bfd_coff_compute_section_file_positions (abfd))
+ goto error_return;
}
/* Allocate space for the pointers we need to keep for the relocs. */
o->rel_filepos = 0;
else
{
- o->flags |= SEC_RELOC;
- o->rel_filepos = rel_filepos;
- rel_filepos += o->reloc_count * relsz;
+ /* A stripped file has no relocs. However, we still
+ allocate the buffers, so that later code doesn't have to
+ worry about whether we are stripping or not. */
+ if (info->strip == strip_all)
+ o->rel_filepos = 0;
+ else
+ {
+ o->flags |= SEC_RELOC;
+ o->rel_filepos = rel_filepos;
+ rel_filepos += o->reloc_count * relsz;
+ }
/* We don't know the indices of global symbols until we have
written out all the local symbols. For each section in
finfo.section_info[o->target_index].rel_hashes =
((struct xcoff_link_hash_entry **)
bfd_malloc (o->reloc_count
- * sizeof (struct xcoff_link_hash_entry *)));
+ * sizeof (struct xcoff_link_hash_entry *)));
if (finfo.section_info[o->target_index].relocs == NULL
|| finfo.section_info[o->target_index].rel_hashes == NULL)
goto error_return;
/* Figure out the largest number of symbols in an input BFD. Take
the opportunity to clear the output_has_begun fields of all the
- input BFD's. We want at least 4 symbols, since that is the
+ input BFD's. We want at least 6 symbols, since that is the
number which xcoff_write_global_symbol may need. */
- max_sym_count = 4;
+ max_sym_count = 6;
for (sub = info->input_bfds; sub != NULL; sub = sub->link_next)
{
size_t sz;
finfo.internal_syms = ((struct internal_syment *)
bfd_malloc (max_sym_count
* sizeof (struct internal_syment)));
+
finfo.sym_indices = (long *) bfd_malloc (max_sym_count * sizeof (long));
finfo.outsyms = ((bfd_byte *)
bfd_malloc ((size_t) ((max_sym_count + 1) * symesz)));
}
}
+
/* Free up the buffers used by xcoff_link_input_bfd. */
- if (finfo.internal_syms != NULL)
- {
- free (finfo.internal_syms);
- finfo.internal_syms = NULL;
- }
- if (finfo.sym_indices != NULL)
- {
- free (finfo.sym_indices);
- finfo.sym_indices = NULL;
- }
- if (finfo.linenos != NULL)
- {
- free (finfo.linenos);
- finfo.linenos = NULL;
- }
- if (finfo.contents != NULL)
- {
- free (finfo.contents);
- finfo.contents = NULL;
- }
- if (finfo.external_relocs != NULL)
- {
- free (finfo.external_relocs);
- finfo.external_relocs = NULL;
- }
+ if (finfo.internal_syms != NULL) {
+ free (finfo.internal_syms);
+ finfo.internal_syms = NULL;
+ }
+ if (finfo.sym_indices != NULL) {
+ free (finfo.sym_indices);
+ finfo.sym_indices = NULL;
+ }
+ if (finfo.linenos != NULL) {
+ free (finfo.linenos);
+ finfo.linenos = NULL;
+ }
+ if (finfo.contents != NULL) {
+ free (finfo.contents);
+ finfo.contents = NULL;
+ }
+ if (finfo.external_relocs != NULL) {
+ free (finfo.external_relocs);
+ finfo.external_relocs = NULL;
+ }
/* The value of the last C_FILE symbol is supposed to be -1. Write
it out again. */
- if (finfo.last_file_index != -1)
- {
- finfo.last_file.n_value = -1;
- bfd_coff_swap_sym_out (abfd, (PTR) &finfo.last_file,
- (PTR) finfo.outsyms);
- if (bfd_seek (abfd,
- (obj_sym_filepos (abfd)
- + finfo.last_file_index * symesz),
- SEEK_SET) != 0
- || bfd_write (finfo.outsyms, symesz, 1, abfd) != symesz)
- goto error_return;
- }
+ if (finfo.last_file_index != -1) {
+ finfo.last_file.n_value = -1;
+ bfd_coff_swap_sym_out (abfd, (PTR) &finfo.last_file,
+ (PTR) finfo.outsyms);
+ if (bfd_seek (abfd,
+ (obj_sym_filepos (abfd)
+ + finfo.last_file_index * symesz),
+ SEEK_SET) != 0
+ || bfd_write (finfo.outsyms, symesz, 1, abfd) != symesz)
+ goto error_return;
+ }
+
+ /* init-fini */
+ if (info->init_function || info->fini_function) {
+ struct xcoff_link_hash_entry *hrtinit;
+
+ hrtinit = xcoff_link_hash_lookup (xcoff_hash_table (info),
+ "__rtinit",
+ false, false, true);
+ }
+
/* Write out all the global symbols which do not come from XCOFF
input files. */
/* Now that we have written out all the global symbols, we know the
symbol indices to use for relocs against them, and we can finally
write out the relocs. */
- external_relocs = (bfd_byte *) malloc (max_output_reloc_count * relsz);
+ external_relocs = (bfd_byte *) bfd_malloc (max_output_reloc_count * relsz);
if (external_relocs == NULL && max_output_reloc_count != 0)
- {
- bfd_set_error (bfd_error_no_memory);
- goto error_return;
- }
-
- for (o = abfd->sections; o != NULL; o = o->next)
- {
- struct internal_reloc *irel;
- struct internal_reloc *irelend;
- struct xcoff_link_hash_entry **rel_hash;
- struct xcoff_toc_rel_hash *toc_rel_hash;
- bfd_byte *erel;
-
- if (o->reloc_count == 0)
- continue;
-
- irel = finfo.section_info[o->target_index].relocs;
- irelend = irel + o->reloc_count;
- rel_hash = finfo.section_info[o->target_index].rel_hashes;
- for (; irel < irelend; irel++, rel_hash++, erel += relsz)
- {
- if (*rel_hash != NULL)
- {
- if ((*rel_hash)->indx < 0)
- {
- if (! ((*info->callbacks->unattached_reloc)
- (info, (*rel_hash)->root.root.string,
- (bfd *) NULL, o, irel->r_vaddr)))
- goto error_return;
- (*rel_hash)->indx = 0;
- }
- irel->r_symndx = (*rel_hash)->indx;
- }
- }
+ goto error_return;
- for (toc_rel_hash = finfo.section_info[o->target_index].toc_rel_hashes;
- toc_rel_hash != NULL;
- toc_rel_hash = toc_rel_hash->next)
- {
- if (toc_rel_hash->h->u.toc_indx < 0)
- {
- if (! ((*info->callbacks->unattached_reloc)
- (info, toc_rel_hash->h->root.root.string,
- (bfd *) NULL, o, toc_rel_hash->rel->r_vaddr)))
- goto error_return;
- toc_rel_hash->h->u.toc_indx = 0;
- }
- toc_rel_hash->rel->r_symndx = toc_rel_hash->h->u.toc_indx;
+ for (o = abfd->sections; o != NULL; o = o->next) {
+ struct internal_reloc *irel;
+ struct internal_reloc *irelend;
+ struct xcoff_link_hash_entry **rel_hash;
+ struct xcoff_toc_rel_hash *toc_rel_hash;
+ bfd_byte *erel;
+
+ /* A stripped file has no relocs. */
+ if (info->strip == strip_all) {
+ o->reloc_count = 0;
+ continue;
+ }
+
+ if (o->reloc_count == 0)
+ continue;
+
+ irel = finfo.section_info[o->target_index].relocs;
+ irelend = irel + o->reloc_count;
+ rel_hash = finfo.section_info[o->target_index].rel_hashes;
+ for (; irel < irelend; irel++, rel_hash++, erel += relsz) {
+ if (*rel_hash != NULL) {
+ if ((*rel_hash)->indx < 0) {
+ if (! ((*info->callbacks->unattached_reloc)
+ (info, (*rel_hash)->root.root.string,
+ (bfd *) NULL, o, irel->r_vaddr)))
+ goto error_return;
+ (*rel_hash)->indx = 0;
}
-
- /* XCOFF requires that the relocs be sorted by address. We tend
- to produce them in the order in which their containing csects
- appear in the symbol table, which is not necessarily by
- address. So we sort them here. There may be a better way to
- do this. */
- qsort ((PTR) finfo.section_info[o->target_index].relocs,
- o->reloc_count, sizeof (struct internal_reloc),
- xcoff_sort_relocs);
-
- irel = finfo.section_info[o->target_index].relocs;
- irelend = irel + o->reloc_count;
- erel = external_relocs;
- for (; irel < irelend; irel++, rel_hash++, erel += relsz)
- bfd_coff_swap_reloc_out (abfd, (PTR) irel, (PTR) erel);
-
- if (bfd_seek (abfd, o->rel_filepos, SEEK_SET) != 0
- || bfd_write ((PTR) external_relocs, relsz, o->reloc_count,
- abfd) != relsz * o->reloc_count)
- goto error_return;
+ irel->r_symndx = (*rel_hash)->indx;
+ }
}
- if (external_relocs != NULL)
- {
- free (external_relocs);
- external_relocs = NULL;
+ for (toc_rel_hash = finfo.section_info[o->target_index].toc_rel_hashes;
+ toc_rel_hash != NULL;
+ toc_rel_hash = toc_rel_hash->next) {
+ if (toc_rel_hash->h->u.toc_indx < 0) {
+ if (! ((*info->callbacks->unattached_reloc)
+ (info, toc_rel_hash->h->root.root.string,
+ (bfd *) NULL, o, toc_rel_hash->rel->r_vaddr)))
+ goto error_return;
+ toc_rel_hash->h->u.toc_indx = 0;
+ }
+ toc_rel_hash->rel->r_symndx = toc_rel_hash->h->u.toc_indx;
}
+ /* XCOFF requires that the relocs be sorted by address. We tend
+ to produce them in the order in which their containing csects
+ appear in the symbol table, which is not necessarily by
+ address. So we sort them here. There may be a better way to
+ do this. */
+ qsort ((PTR) finfo.section_info[o->target_index].relocs,
+ o->reloc_count, sizeof (struct internal_reloc),
+ xcoff_sort_relocs);
+
+ irel = finfo.section_info[o->target_index].relocs;
+ irelend = irel + o->reloc_count;
+ erel = external_relocs;
+ for (; irel < irelend; irel++, rel_hash++, erel += relsz)
+ bfd_coff_swap_reloc_out (abfd, (PTR) irel, (PTR) erel);
+
+ if (bfd_seek (abfd, o->rel_filepos, SEEK_SET) != 0
+ || bfd_write ((PTR) external_relocs, relsz, o->reloc_count,
+ abfd) != relsz * o->reloc_count)
+ goto error_return;
+ }
+
+ if (external_relocs != NULL) {
+ free (external_relocs);
+ external_relocs = NULL;
+ }
+
/* Free up the section information. */
- if (finfo.section_info != NULL)
- {
- unsigned int i;
+ if (finfo.section_info != NULL) {
+ unsigned int i;
- for (i = 0; i < abfd->section_count; i++)
- {
- if (finfo.section_info[i].relocs != NULL)
- free (finfo.section_info[i].relocs);
- if (finfo.section_info[i].rel_hashes != NULL)
- free (finfo.section_info[i].rel_hashes);
- }
- free (finfo.section_info);
- finfo.section_info = NULL;
+ for (i = 0; i < abfd->section_count; i++) {
+ if (finfo.section_info[i].relocs != NULL)
+ free (finfo.section_info[i].relocs);
+ if (finfo.section_info[i].rel_hashes != NULL)
+ free (finfo.section_info[i].rel_hashes);
}
+ free (finfo.section_info);
+ finfo.section_info = NULL;
+ }
/* Write out the loader section contents. */
BFD_ASSERT ((bfd_byte *) finfo.ldrel
/* Write out the debugging string table. */
o = xcoff_hash_table (info)->debug_section;
- if (o != NULL)
- {
- struct bfd_strtab_hash *debug_strtab;
-
- debug_strtab = xcoff_hash_table (info)->debug_strtab;
- BFD_ASSERT (o->output_section->_raw_size - o->output_offset
- >= _bfd_stringtab_size (debug_strtab));
- if (bfd_seek (abfd,
- o->output_section->filepos + o->output_offset,
- SEEK_SET) != 0)
- goto error_return;
- if (! _bfd_stringtab_emit (abfd, debug_strtab))
- goto error_return;
- }
-
+ if (o != NULL) {
+ struct bfd_strtab_hash *debug_strtab;
+
+ debug_strtab = xcoff_hash_table (info)->debug_strtab;
+ BFD_ASSERT (o->output_section->_raw_size - o->output_offset
+ >= _bfd_stringtab_size (debug_strtab));
+ if (bfd_seek (abfd,
+ o->output_section->filepos + o->output_offset,
+ SEEK_SET) != 0)
+ goto error_return;
+ if (! _bfd_stringtab_emit (abfd, debug_strtab))
+ goto error_return;
+ }
+
/* Setting bfd_get_symcount to 0 will cause write_object_contents to
not try to write out the symbols. */
bfd_get_symcount (abfd) = 0;
-
+
return true;
error_return:
if (finfo.strtab != NULL)
_bfd_stringtab_free (finfo.strtab);
- if (finfo.section_info != NULL)
- {
- unsigned int i;
-
- for (i = 0; i < abfd->section_count; i++)
- {
- if (finfo.section_info[i].relocs != NULL)
- free (finfo.section_info[i].relocs);
- if (finfo.section_info[i].rel_hashes != NULL)
- free (finfo.section_info[i].rel_hashes);
- }
- free (finfo.section_info);
+
+ if (finfo.section_info != NULL) {
+ unsigned int i;
+
+ for (i = 0; i < abfd->section_count; i++) {
+ if (finfo.section_info[i].relocs != NULL)
+ free (finfo.section_info[i].relocs);
+ if (finfo.section_info[i].rel_hashes != NULL)
+ free (finfo.section_info[i].rel_hashes);
}
+ free (finfo.section_info);
+ }
+
if (finfo.internal_syms != NULL)
free (finfo.internal_syms);
if (finfo.sym_indices != NULL)
while (esym < esym_end)
{
+
struct internal_syment isym;
union internal_auxent aux;
int smtyp = 0;
isymp->n_type, isymp->n_sclass,
isymp->n_numaux - 1, isymp->n_numaux,
(PTR) &aux);
+
smtyp = SMTYP_SMTYP (aux.x_csect.x_smtyp);
}
ldsym->l_parm = 0;
BFD_ASSERT (h->ldindx >= 0);
- BFD_ASSERT (LDSYMSZ == sizeof (struct external_ldsym));
- xcoff_swap_ldsym_out (finfo->output_bfd, ldsym,
- finfo->ldsym + h->ldindx - 3);
+ bfd_xcoff_swap_ldsym_out (finfo->output_bfd, ldsym,
+ finfo->ldsym + (h->ldindx - 3) *
+ bfd_xcoff_ldsymsz(finfo->output_bfd));
h->ldsym = NULL;
+
+ /* Fill in snentry now that we know the target_index. */
+ if ((h->flags & XCOFF_ENTRY) != 0 &&
+ (h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak)) {
+ xcoff_data (output_bfd)->snentry =
+ h->root.u.def.section->output_section->target_index;
+ }
}
*indexp = -1;
else
{
bfd_vma tocval, tocend;
+ bfd *inp;
tocval = ((*csectpp)->output_section->vma
+ (*csectpp)->output_offset
+ isym.n_value
- (*csectpp)->vma);
+
/* We want to find out if tocval is a good value to use
as the TOC anchor--that is, whether we can access all
of the TOC using a 16 bit offset from tocval. This
test assumes that the TOC comes at the end of the
output section, as it does in the default linker
- script. If the TOC anchor is too far into the .toc
- section, the relocation routine will report
- overflows. */
+ script. */
tocend = ((*csectpp)->output_section->vma
+ (*csectpp)->output_section->_raw_size);
+ for (inp = finfo->info->input_bfds;
+ inp != NULL;
+ inp = inp->link_next)
+ {
+ asection *o;
+
+ for (o = inp->sections; o != NULL; o = o->next)
+ if (strcmp (o->name, ".tocbss") == 0)
+ {
+ bfd_vma new_toc_end;
+ new_toc_end = (o->output_section->vma
+ + o->output_offset
+ + o->_cooked_size);
+ if (new_toc_end > tocend)
+ tocend = new_toc_end;
+ }
+
+ }
+
+ if (tocval + 0x10000 < tocend)
+ {
+ (*_bfd_error_handler)
+ (_("TOC overflow: 0x%lx > 0x10000; try -mminimal-toc when compiling"),
+ (unsigned long) (tocend - tocval));
+ bfd_set_error (bfd_error_file_too_big);
+ return false;
+ }
+
if (tocval + 0x8000 < tocend)
{
bfd_vma tocadd;
finfo->toc_symindx = output_index;
xcoff_data (finfo->output_bfd)->toc = tocval;
- xcoff_data (finfo->output_bfd)->toc_section =
- (*csectpp)->output_section;
+ xcoff_data (finfo->output_bfd)->sntoc =
+ (*csectpp)->output_section->target_index;
require = true;
+
}
}
char buf[SYMNMLEN + 1];
name = _bfd_coff_internal_syment_name (input_bfd, &isym, buf);
+
if (name == NULL)
return false;
&& (isym.n_sclass != C_EXT
&& (isym.n_sclass != C_HIDEXT
|| smtyp != XTY_SD))
- && strncmp (name, finfo->info->lprefix,
- finfo->info->lprefix_len) == 0))
+ && bfd_is_local_label_name (input_bfd, name)))
skip = true;
}
name = _bfd_coff_internal_syment_name (input_bfd, &isym,
(char *) NULL);
+
if (name == NULL)
return false;
indx = _bfd_stringtab_add (finfo->strtab, name, hash, copy);
if (isym.n_sclass == C_FILE)
{
if (finfo->last_file_index != -1
- && finfo->last_file.n_value != (long) output_index)
+ && finfo->last_file.n_value != (bfd_vma) output_index)
{
/* We must correct the value of the last C_FILE entry. */
finfo->last_file.n_value = output_index;
if (isymp->n_sclass == C_BSTAT)
{
struct internal_syment isym;
- unsigned long indx;
+
+ bfd_vma indx;
/* The value of a C_BSTAT symbol is the symbol table
index of the containing csect. */
|| isymp->n_sclass == C_HIDEXT)
&& i + 1 == isymp->n_numaux)
{
+
/* We don't support type checking. I don't know if
anybody does. */
aux.x_csect.x_parmhash = 0;
better clobber them just in case. */
aux.x_csect.x_stab = 0;
aux.x_csect.x_snstab = 0;
+
if (SMTYP_SMTYP (aux.x_csect.x_smtyp) == XTY_LD)
{
- unsigned long indx;
+ bfd_signed_vma indx;
+
- indx = aux.x_csect.x_scnlen.l;
+ indx = aux.x_csect.x_scnlen.l;
if (indx < obj_raw_syment_count (input_bfd))
{
long symindx;
symindx = finfo->sym_indices[indx];
- if (symindx < 0)
- aux.x_sym.x_tagndx.l = 0;
- else
- aux.x_sym.x_tagndx.l = symindx;
+ if (symindx < 0) {
+ aux.x_csect.x_scnlen.l = 0;
+ } else {
+ aux.x_csect.x_scnlen.l = symindx;
+ }
}
}
}
if (ISFCN (isymp->n_type)
|| ISTAG (isymp->n_sclass)
- || isymp->n_sclass == C_BLOCK)
+ || isymp->n_sclass == C_BLOCK
+ || isymp->n_sclass == C_FCN)
{
indx = aux.x_sym.x_fcnary.x_fcn.x_endndx.l;
if (indx > 0
else
indx = finfo->sym_indices[indx];
aux.x_sym.x_fcnary.x_fcn.x_endndx.l = indx;
+
}
}
else
aux.x_sym.x_tagndx.l = symindx;
}
+
}
/* Copy over the line numbers, unless we are stripping
{
asection *enclosing;
unsigned int enc_count;
- bfd_size_type linoff;
+ bfd_signed_vma linoff;
struct internal_lineno lin;
o = *csectpp;
struct internal_syment *iisp, *iispend;
long *iindp;
bfd_byte *oos;
+ int iiadd;
/* Update any C_BINCL or C_EINCL symbols
that refer to a line number in the
oos = finfo->outsyms;
while (iisp < iispend)
{
- if ((iisp->n_sclass == C_BINCL
- || iisp->n_sclass == C_EINCL)
+ if (*iindp >= 0
+ && (iisp->n_sclass == C_BINCL
+ || iisp->n_sclass == C_EINCL)
&& ((bfd_size_type) iisp->n_value
- >= enclosing->line_filepos + linoff)
+ >= (bfd_size_type)(enclosing->line_filepos + linoff))
&& ((bfd_size_type) iisp->n_value
< (enclosing->line_filepos
+ enc_count * linesz)))
--incls;
}
- iisp += iisp->n_numaux + 1;
- iindp += iisp->n_numaux + 1;
- oos += (iisp->n_numaux + 1) * osymesz;
+ iiadd = 1 + iisp->n_numaux;
+ if (*iindp >= 0)
+ oos += iiadd * osymesz;
+ iisp += iiadd;
+ iindp += iiadd;
}
}
}
obj_coff_keep_syms (input_bfd) = true;
/* Relocate the contents of each section. */
- for (o = input_bfd->sections; o != NULL; o = o->next)
- {
- bfd_byte *contents;
+ for (o = input_bfd->sections; o != NULL; o = o->next) {
+
+ bfd_byte *contents;
- if ((o->flags & SEC_HAS_CONTENTS) == 0
- || o->_raw_size == 0
- || (o->flags & SEC_IN_MEMORY) != 0)
- continue;
+ if (! o->linker_mark){
+ /* This section was omitted from the link. */
+ continue;
+ }
- /* We have set filepos correctly for the sections we created to
- represent csects, so bfd_get_section_contents should work. */
- if (coff_section_data (input_bfd, o) != NULL
- && coff_section_data (input_bfd, o)->contents != NULL)
- contents = coff_section_data (input_bfd, o)->contents;
- else
- {
- if (! bfd_get_section_contents (input_bfd, o, finfo->contents,
- (file_ptr) 0, o->_raw_size))
- return false;
- contents = finfo->contents;
- }
+ if ((o->flags & SEC_HAS_CONTENTS) == 0
+ || o->_raw_size == 0
+ || (o->flags & SEC_IN_MEMORY) != 0)
+ continue;
+
+ /* We have set filepos correctly for the sections we created to
+ represent csects, so bfd_get_section_contents should work. */
+ if (coff_section_data (input_bfd, o) != NULL
+ && coff_section_data (input_bfd, o)->contents != NULL)
+ contents = coff_section_data (input_bfd, o)->contents;
+ else {
+ if (! bfd_get_section_contents (input_bfd, o, finfo->contents,
+ (file_ptr) 0, o->_raw_size))
+ return false;
+ contents = finfo->contents;
+ }
- if ((o->flags & SEC_RELOC) != 0)
- {
- int target_index;
- struct internal_reloc *internal_relocs;
- struct internal_reloc *irel;
- bfd_vma offset;
- struct internal_reloc *irelend;
- struct xcoff_link_hash_entry **rel_hash;
- long r_symndx;
-
- /* Read in the relocs. */
- target_index = o->output_section->target_index;
- internal_relocs = (xcoff_read_internal_relocs
- (input_bfd, o, false, finfo->external_relocs,
- true,
- (finfo->section_info[target_index].relocs
- + o->output_section->reloc_count)));
- if (internal_relocs == NULL)
- return false;
+ if ((o->flags & SEC_RELOC) != 0) {
+ int target_index;
+ struct internal_reloc *internal_relocs;
+ struct internal_reloc *irel;
+ bfd_vma offset;
+ struct internal_reloc *irelend;
+ struct xcoff_link_hash_entry **rel_hash;
+ long r_symndx;
+
+ /* Read in the relocs. */
+ target_index = o->output_section->target_index;
+ internal_relocs = (xcoff_read_internal_relocs
+ (input_bfd, o, false, finfo->external_relocs,
+ true,
+ (finfo->section_info[target_index].relocs
+ + o->output_section->reloc_count)));
+ if (internal_relocs == NULL)
+ return false;
- /* Call processor specific code to relocate the section
- contents. */
- if (! bfd_coff_relocate_section (output_bfd, finfo->info,
- input_bfd, o,
- contents,
- internal_relocs,
- finfo->internal_syms,
- xcoff_data (input_bfd)->csects))
- return false;
+ /* Call processor specific code to relocate the section
+ contents. */
+ if (! bfd_coff_relocate_section (output_bfd, finfo->info,
+ input_bfd, o,
+ contents,
+ internal_relocs,
+ finfo->internal_syms,
+ xcoff_data (input_bfd)->csects))
+ return false;
- offset = o->output_section->vma + o->output_offset - o->vma;
- irel = internal_relocs;
- irelend = irel + o->reloc_count;
- rel_hash = (finfo->section_info[target_index].rel_hashes
- + o->output_section->reloc_count);
- for (; irel < irelend; irel++, rel_hash++)
- {
- struct xcoff_link_hash_entry *h = NULL;
- struct internal_ldrel ldrel;
+ offset = o->output_section->vma + o->output_offset - o->vma;
+ irel = internal_relocs;
+ irelend = irel + o->reloc_count;
+ rel_hash = (finfo->section_info[target_index].rel_hashes
+ + o->output_section->reloc_count);
+ for (; irel < irelend; irel++, rel_hash++) {
+ struct xcoff_link_hash_entry *h = NULL;
+ struct internal_ldrel ldrel;
+ boolean quiet;
- *rel_hash = NULL;
+ *rel_hash = NULL;
- /* Adjust the reloc address and symbol index. */
+ /* Adjust the reloc address and symbol index. */
- irel->r_vaddr += offset;
+ irel->r_vaddr += offset;
- r_symndx = irel->r_symndx;
+ r_symndx = irel->r_symndx;
- if (r_symndx != -1)
- {
- h = obj_xcoff_sym_hashes (input_bfd)[r_symndx];
- if (h != NULL
- && (irel->r_type == R_TOC
- || irel->r_type == R_GL
- || irel->r_type == R_TCL
- || irel->r_type == R_TRL
- || irel->r_type == R_TRLA))
- {
- /* This is a TOC relative reloc with a symbol
- attached. The symbol should be the one which
- this reloc is for. We want to make this
- reloc against the TOC address of the symbol,
- not the symbol itself. */
- BFD_ASSERT (h->toc_section != NULL);
- BFD_ASSERT ((h->flags & XCOFF_SET_TOC) == 0);
- if (h->u.toc_indx != -1)
- irel->r_symndx = h->u.toc_indx;
- else
- {
- struct xcoff_toc_rel_hash *n;
- struct xcoff_link_section_info *si;
+ if (r_symndx == -1)
+ h = NULL;
+ else
+ h = obj_xcoff_sym_hashes (input_bfd)[r_symndx];
- n = ((struct xcoff_toc_rel_hash *)
- bfd_alloc (finfo->output_bfd,
- sizeof (struct xcoff_toc_rel_hash)));
- if (n == NULL)
- return false;
- si = finfo->section_info + target_index;
- n->next = si->toc_rel_hashes;
- n->h = h;
- n->rel = irel;
- si->toc_rel_hashes = n;
- }
- }
- else if (h != NULL)
- {
- /* This is a global symbol. */
- if (h->indx >= 0)
- irel->r_symndx = h->indx;
- else
- {
- /* This symbol is being written at the end
- of the file, and we do not yet know the
- symbol index. We save the pointer to the
- hash table entry in the rel_hash list.
- We set the indx field to -2 to indicate
- that this symbol must not be stripped. */
- *rel_hash = h;
- h->indx = -2;
- }
- }
- else
- {
- long indx;
+ if (r_symndx != -1 && finfo->info->strip != strip_all)
+ {
+ if (h != NULL
+ && h->smclas != XMC_TD
+ && (irel->r_type == R_TOC
+ || irel->r_type == R_GL
+ || irel->r_type == R_TCL
+ || irel->r_type == R_TRL
+ || irel->r_type == R_TRLA))
+ {
+ /* This is a TOC relative reloc with a symbol
+ attached. The symbol should be the one which
+ this reloc is for. We want to make this
+ reloc against the TOC address of the symbol,
+ not the symbol itself. */
+ BFD_ASSERT (h->toc_section != NULL);
+ BFD_ASSERT ((h->flags & XCOFF_SET_TOC) == 0);
+ if (h->u.toc_indx != -1)
+ irel->r_symndx = h->u.toc_indx;
+ else
+ {
+ struct xcoff_toc_rel_hash *n;
+ struct xcoff_link_section_info *si;
+
+ n = ((struct xcoff_toc_rel_hash *)
+ bfd_alloc (finfo->output_bfd,
+ sizeof (struct xcoff_toc_rel_hash)));
+ if (n == NULL)
+ return false;
+ si = finfo->section_info + target_index;
+ n->next = si->toc_rel_hashes;
+ n->h = h;
+ n->rel = irel;
+ si->toc_rel_hashes = n;
+ }
+ }
+ else if (h != NULL)
+ {
+ /* This is a global symbol. */
+ if (h->indx >= 0)
+ irel->r_symndx = h->indx;
+ else
+ {
+ /* This symbol is being written at the end
+ of the file, and we do not yet know the
+ symbol index. We save the pointer to the
+ hash table entry in the rel_hash list.
+ We set the indx field to -2 to indicate
+ that this symbol must not be stripped. */
+ *rel_hash = h;
+ h->indx = -2;
+ }
+ }
+ else
+ {
+ long indx;
- indx = finfo->sym_indices[r_symndx];
+ indx = finfo->sym_indices[r_symndx];
- if (indx == -1)
- {
- struct internal_syment *is;
-
- /* Relocations against a TC0 TOC anchor are
- automatically transformed to be against
- the TOC anchor in the output file. */
- is = finfo->internal_syms + r_symndx;
- if (is->n_sclass == C_HIDEXT
- && is->n_numaux > 0)
- {
- PTR auxptr;
- union internal_auxent aux;
-
- auxptr = ((PTR)
- (((bfd_byte *)
- obj_coff_external_syms (input_bfd))
- + ((r_symndx + is->n_numaux)
- * isymesz)));
- bfd_coff_swap_aux_in (input_bfd, auxptr,
- is->n_type, is->n_sclass,
- is->n_numaux - 1,
- is->n_numaux,
- (PTR) &aux);
- if (SMTYP_SMTYP (aux.x_csect.x_smtyp) == XTY_SD
- && aux.x_csect.x_smclas == XMC_TC0)
- indx = finfo->toc_symindx;
- }
- }
+ if (indx == -1)
+ {
+ struct internal_syment *is;
+
+ /* Relocations against a TC0 TOC anchor are
+ automatically transformed to be against
+ the TOC anchor in the output file. */
+ is = finfo->internal_syms + r_symndx;
+ if (is->n_sclass == C_HIDEXT
+ && is->n_numaux > 0)
+ {
+ PTR auxptr;
+ union internal_auxent aux;
+
+ auxptr = ((PTR)
+ (((bfd_byte *)
+ obj_coff_external_syms (input_bfd))
+ + ((r_symndx + is->n_numaux)
+ * isymesz)));
+ bfd_coff_swap_aux_in (input_bfd, auxptr,
+ is->n_type, is->n_sclass,
+ is->n_numaux - 1,
+ is->n_numaux,
+ (PTR) &aux);
+ if (SMTYP_SMTYP (aux.x_csect.x_smtyp) == XTY_SD
+ && aux.x_csect.x_smclas == XMC_TC0)
+ indx = finfo->toc_symindx;
+ }
+ }
- if (indx != -1)
- irel->r_symndx = indx;
- else
- {
- struct internal_syment *is;
- const char *name;
- char buf[SYMNMLEN + 1];
-
- /* This reloc is against a symbol we are
- stripping. It would be possible to handle
- this case, but I don't think it's worth it. */
- is = finfo->internal_syms + r_symndx;
-
- name = (_bfd_coff_internal_syment_name
- (input_bfd, is, buf));
- if (name == NULL)
- return false;
+ if (indx != -1)
+ irel->r_symndx = indx;
+ else
+ {
- if (! ((*finfo->info->callbacks->unattached_reloc)
- (finfo->info, name, input_bfd, o,
- irel->r_vaddr)))
- return false;
- }
- }
- }
+ struct internal_syment *is;
- switch (irel->r_type)
- {
- default:
- if (h == NULL
- || h->root.type == bfd_link_hash_defined
- || h->root.type == bfd_link_hash_defweak
- || h->root.type == bfd_link_hash_common)
- break;
- /* Fall through. */
- case R_POS:
- case R_NEG:
- case R_RL:
- case R_RLA:
- /* This reloc needs to be copied into the .loader
- section. */
- ldrel.l_vaddr = irel->r_vaddr;
- if (r_symndx == -1)
- ldrel.l_symndx = -1;
- else if (h == NULL
- || (h->root.type == bfd_link_hash_defined
- || h->root.type == bfd_link_hash_defweak
- || h->root.type == bfd_link_hash_common))
- {
- asection *sec;
+ const char *name;
+ char buf[SYMNMLEN + 1];
- if (h == NULL)
- sec = xcoff_data (input_bfd)->csects[r_symndx];
- else if (h->root.type == bfd_link_hash_common)
- sec = h->root.u.c.p->section;
- else
- sec = h->root.u.def.section;
- sec = sec->output_section;
-
- if (strcmp (sec->name, ".text") == 0)
- ldrel.l_symndx = 0;
- else if (strcmp (sec->name, ".data") == 0)
- ldrel.l_symndx = 1;
- else if (strcmp (sec->name, ".bss") == 0)
- ldrel.l_symndx = 2;
- else
- {
- (*_bfd_error_handler)
- ("%s: loader reloc in unrecognized section `%s'",
- bfd_get_filename (input_bfd),
- sec->name);
- bfd_set_error (bfd_error_nonrepresentable_section);
- return false;
- }
- }
- else
- {
- if (h->ldindx < 0)
- {
- (*_bfd_error_handler)
- ("%s: `%s' in loader reloc but not loader sym",
- bfd_get_filename (input_bfd),
- h->root.root.string);
- bfd_set_error (bfd_error_bad_value);
- return false;
- }
- ldrel.l_symndx = h->ldindx;
- }
- ldrel.l_rtype = (irel->r_size << 8) | irel->r_type;
- ldrel.l_rsecnm = o->output_section->target_index;
- if (xcoff_hash_table (finfo->info)->textro
- && strcmp (o->output_section->name, ".text") == 0)
- {
- (*_bfd_error_handler)
- ("%s: loader reloc in read-only section %s",
- bfd_get_filename (input_bfd),
- bfd_get_section_name (finfo->output_bfd,
- o->output_section));
- bfd_set_error (bfd_error_invalid_operation);
+ /* This reloc is against a symbol we are
+ stripping. It would be possible to handle
+ this case, but I don't think it's worth it. */
+ is = finfo->internal_syms + r_symndx;
+
+ name = (_bfd_coff_internal_syment_name
+ (input_bfd, is, buf));
+
+ if (name == NULL)
return false;
- }
- xcoff_swap_ldrel_out (output_bfd, &ldrel,
- finfo->ldrel);
- BFD_ASSERT (sizeof (struct external_ldrel) == LDRELSZ);
- ++finfo->ldrel;
- break;
- case R_TOC:
- case R_GL:
- case R_TCL:
- case R_TRL:
- case R_TRLA:
- /* We should never need a .loader reloc for a TOC
- relative reloc. */
- break;
- }
- }
+ if (! ((*finfo->info->callbacks->unattached_reloc)
+ (finfo->info, name, input_bfd, o,
+ irel->r_vaddr)))
+ return false;
+ }
+ }
+ }
+
+ quiet = false;
+ switch (irel->r_type)
+ {
+ default:
+ if (h == NULL
+ || h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak
+ || h->root.type == bfd_link_hash_common)
+ break;
+ /* Fall through. */
+ case R_POS:
+ case R_NEG:
+ case R_RL:
+ case R_RLA:
+ /* This reloc needs to be copied into the .loader
+ section. */
+ ldrel.l_vaddr = irel->r_vaddr;
+ if (r_symndx == -1)
+ ldrel.l_symndx = -1;
+ else if (h == NULL
+ || (h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak
+ || h->root.type == bfd_link_hash_common))
+ {
+ asection *sec;
+
+ if (h == NULL)
+ sec = xcoff_data (input_bfd)->csects[r_symndx];
+ else if (h->root.type == bfd_link_hash_common)
+ sec = h->root.u.c.p->section;
+ else
+ sec = h->root.u.def.section;
+ sec = sec->output_section;
+
+ if (strcmp (sec->name, ".text") == 0)
+ ldrel.l_symndx = 0;
+ else if (strcmp (sec->name, ".data") == 0)
+ ldrel.l_symndx = 1;
+ else if (strcmp (sec->name, ".bss") == 0)
+ ldrel.l_symndx = 2;
+ else
+ {
+ (*_bfd_error_handler)
+ (_("%s: loader reloc in unrecognized section `%s'"),
+ bfd_get_filename (input_bfd),
+ sec->name);
+ bfd_set_error (bfd_error_nonrepresentable_section);
+ return false;
+ }
+ }
+ else
+ {
+ if (! finfo->info->relocateable
+ && (h->flags & XCOFF_DEF_DYNAMIC) == 0
+ && (h->flags & XCOFF_IMPORT) == 0)
+ {
+ /* We already called the undefined_symbol
+ callback for this relocation, in
+ _bfd_ppc_xcoff_relocate_section. Don't
+ issue any more warnings. */
+ quiet = true;
+ }
+ if (h->ldindx < 0 && ! quiet)
+ {
+ (*_bfd_error_handler)
+ (_("%s: `%s' in loader reloc but not loader sym"),
+ bfd_get_filename (input_bfd),
+ h->root.root.string);
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+ ldrel.l_symndx = h->ldindx;
+ }
+ ldrel.l_rtype = (irel->r_size << 8) | irel->r_type;
+ ldrel.l_rsecnm = o->output_section->target_index;
+ if (xcoff_hash_table (finfo->info)->textro
+ && strcmp (o->output_section->name, ".text") == 0
+ && ! quiet)
+ {
+ (*_bfd_error_handler)
+ (_("%s: loader reloc in read-only section %s"),
+ bfd_get_filename (input_bfd),
+ bfd_get_section_name (finfo->output_bfd,
+ o->output_section));
+ bfd_set_error (bfd_error_invalid_operation);
+ return false;
+ }
+ bfd_xcoff_swap_ldrel_out (output_bfd, &ldrel,
+ finfo->ldrel);
+
+ finfo->ldrel += bfd_xcoff_ldrelsz(output_bfd);
+ break;
- o->output_section->reloc_count += o->reloc_count;
- }
+ case R_TOC:
+ case R_GL:
+ case R_TCL:
+ case R_TRL:
+ case R_TRLA:
+ /* We should never need a .loader reloc for a TOC
+ relative reloc. */
+ break;
+ }
+ }
- /* Write out the modified section contents. */
- if (! bfd_set_section_contents (output_bfd, o->output_section,
- contents, o->output_offset,
- (o->_cooked_size != 0
- ? o->_cooked_size
- : o->_raw_size)))
- return false;
+ o->output_section->reloc_count += o->reloc_count;
}
+ /* Write out the modified section contents. */
+ if (! bfd_set_section_contents (output_bfd, o->output_section,
+ contents, o->output_offset,
+ (o->_cooked_size != 0
+ ? o->_cooked_size
+ : o->_raw_size)))
+ return false;
+ }
+
obj_coff_keep_syms (input_bfd) = keep_syms;
if (! finfo->info->keep_memory)
/* Write out a non-XCOFF global symbol. */
+
static boolean
xcoff_write_global_symbol (h, p)
struct xcoff_link_hash_entry *h;
bfd_byte *outsym;
struct internal_syment isym;
union internal_auxent aux;
+ boolean result;
output_bfd = finfo->output_bfd;
+ outsym = finfo->outsyms;
/* If this symbol was garbage collected, just skip it. */
if (xcoff_hash_table (finfo->info)->gc
return true;
/* If we need a .loader section entry, write it out. */
- if (h->ldsym != NULL)
- {
- struct internal_ldsym *ldsym;
- bfd *impbfd;
+ if (h->ldsym != NULL) {
+ struct internal_ldsym *ldsym;
+ bfd *impbfd;
+
+ ldsym = h->ldsym;
- ldsym = h->ldsym;
+ if (h->root.type == bfd_link_hash_undefined ||
+ h->root.type == bfd_link_hash_undefweak) {
- if (h->root.type == bfd_link_hash_undefined
- || h->root.type == bfd_link_hash_undefweak)
- {
- ldsym->l_value = 0;
- ldsym->l_scnum = N_UNDEF;
- ldsym->l_smtype = XTY_ER;
- impbfd = h->root.u.undef.abfd;
- }
- else if (h->root.type == bfd_link_hash_defined
- || h->root.type == bfd_link_hash_defweak)
- {
- asection *sec;
+ ldsym->l_value = 0;
+ ldsym->l_scnum = N_UNDEF;
+ ldsym->l_smtype = XTY_ER;
+ impbfd = h->root.u.undef.abfd;
- sec = h->root.u.def.section;
- ldsym->l_value = (sec->output_section->vma
- + sec->output_offset
- + h->root.u.def.value);
- ldsym->l_scnum = sec->output_section->target_index;
- ldsym->l_smtype = XTY_SD;
- impbfd = sec->owner;
- }
- else
- abort ();
+ } else if (h->root.type == bfd_link_hash_defined ||
+ h->root.type == bfd_link_hash_defweak) {
- if (((h->flags & XCOFF_DEF_REGULAR) == 0
- && (h->flags & XCOFF_DEF_DYNAMIC) != 0)
- || (h->flags & XCOFF_IMPORT) != 0)
- ldsym->l_smtype |= L_IMPORT;
- if (((h->flags & XCOFF_DEF_REGULAR) != 0
- && (h->flags & XCOFF_DEF_DYNAMIC) != 0)
- || (h->flags & XCOFF_EXPORT) != 0)
- ldsym->l_smtype |= L_EXPORT;
- if ((h->flags & XCOFF_ENTRY) != 0)
- ldsym->l_smtype |= L_ENTRY;
+ asection *sec;
+
+ sec = h->root.u.def.section;
+ ldsym->l_value = (sec->output_section->vma
+ + sec->output_offset
+ + h->root.u.def.value);
+ ldsym->l_scnum = sec->output_section->target_index;
+ ldsym->l_smtype = XTY_SD;
+ impbfd = sec->owner;
+
+ } else {
+ abort ();
+ }
- ldsym->l_smclas = h->smclas;
+ if (((h->flags & XCOFF_DEF_REGULAR) == 0 &&
+ (h->flags & XCOFF_DEF_DYNAMIC) != 0) ||
+ (h->flags & XCOFF_IMPORT) != 0) {
+ /* Clear l_smtype
+ Import symbols are defined so the check above will make the l_smtype
+ XTY_SD. But this is not correct, it should be cleared. */
+ ldsym->l_smtype = L_IMPORT;
+ }
- if (ldsym->l_ifile == (bfd_size_type) -1)
- ldsym->l_ifile = 0;
- else if (ldsym->l_ifile == 0)
- {
- if ((ldsym->l_smtype & L_IMPORT) == 0)
- ldsym->l_ifile = 0;
- else if (impbfd == NULL)
- ldsym->l_ifile = 0;
- else
- {
- BFD_ASSERT (impbfd->xvec == output_bfd->xvec);
- ldsym->l_ifile = xcoff_data (impbfd)->import_file_id;
- }
- }
+ if (((h->flags & XCOFF_DEF_REGULAR) != 0 &&
+ (h->flags & XCOFF_DEF_DYNAMIC) != 0) ||
+ (h->flags & XCOFF_EXPORT) != 0) {
+ ldsym->l_smtype |= L_EXPORT;
+ }
- ldsym->l_parm = 0;
+ if ((h->flags & XCOFF_ENTRY) != 0) {
+ ldsym->l_smtype |= L_ENTRY;
+ }
- BFD_ASSERT (h->ldindx >= 0);
- BFD_ASSERT (LDSYMSZ == sizeof (struct external_ldsym));
- xcoff_swap_ldsym_out (output_bfd, ldsym, finfo->ldsym + h->ldindx - 3);
- h->ldsym = NULL;
+ if ((h->flags & XCOFF_RTINIT) != 0) {
+ ldsym->l_smtype = XTY_SD;
}
+ ldsym->l_smclas = h->smclas;
+
+ if (ldsym->l_smtype & L_IMPORT)
+ {
+ if ((h->root.type == bfd_link_hash_defined ||
+ h->root.type == bfd_link_hash_defweak) &&
+ (h->root.u.def.value != 0))
+ {
+ ldsym->l_smclas = XMC_XO;
+ }
+ else if ((h->flags & (XCOFF_SYSCALL32 | XCOFF_SYSCALL64)) ==
+ (XCOFF_SYSCALL32 | XCOFF_SYSCALL64))
+ {
+ ldsym->l_smclas = XMC_SV3264;
+ }
+ else if (h->flags & XCOFF_SYSCALL32)
+ {
+ ldsym->l_smclas = XMC_SV;
+ }
+ else if (h->flags & XCOFF_SYSCALL64)
+ {
+ ldsym->l_smclas = XMC_SV64;
+ }
+ }
+
+ if (ldsym->l_ifile == (bfd_size_type) -1) {
+ ldsym->l_ifile = 0;
+
+ } else if (ldsym->l_ifile == 0) {
+ if ((ldsym->l_smtype & L_IMPORT) == 0) {
+ ldsym->l_ifile = 0;
+ } else if (impbfd == NULL) {
+ ldsym->l_ifile = 0;
+ } else {
+ BFD_ASSERT (impbfd->xvec == output_bfd->xvec);
+ ldsym->l_ifile = xcoff_data (impbfd)->import_file_id;
+ }
+ }
+
+ ldsym->l_parm = 0;
+
+ BFD_ASSERT (h->ldindx >= 0);
+
+ bfd_xcoff_swap_ldsym_out (output_bfd, ldsym, finfo->ldsym +
+ (h->ldindx - 3) *
+ bfd_xcoff_ldsymsz(finfo->output_bfd));
+ h->ldsym = NULL;
+ }
+
/* If this symbol needs global linkage code, write it out. */
- if (h->root.type == bfd_link_hash_defined
- && (h->root.u.def.section
- == xcoff_hash_table (finfo->info)->linkage_section))
- {
- bfd_byte *p;
- bfd_vma tocoff;
- unsigned int i;
-
- p = h->root.u.def.section->contents + h->root.u.def.value;
-
- /* The first instruction in the global linkage code loads a
- specific TOC element. */
- tocoff = (h->descriptor->toc_section->output_section->vma
- + h->descriptor->toc_section->output_offset
- - xcoff_data (output_bfd)->toc);
- if ((h->descriptor->flags & XCOFF_SET_TOC) != 0)
- tocoff += h->descriptor->u.toc_offset;
- bfd_put_32 (output_bfd, XCOFF_GLINK_FIRST | (tocoff & 0xffff), p);
- for (i = 0, p += 4;
- i < sizeof xcoff_glink_code / sizeof xcoff_glink_code[0];
- i++, p += 4)
- bfd_put_32 (output_bfd, xcoff_glink_code[i], p);
+ if (h->root.type == bfd_link_hash_defined &&
+ (h->root.u.def.section ==
+ xcoff_hash_table (finfo->info)->linkage_section)) {
+
+ bfd_byte *p;
+ bfd_vma tocoff;
+ unsigned int i;
+
+ p = h->root.u.def.section->contents + h->root.u.def.value;
+
+ /* The first instruction in the global linkage code loads a
+ specific TOC element. */
+ tocoff = (h->descriptor->toc_section->output_section->vma
+ + h->descriptor->toc_section->output_offset
+ - xcoff_data (output_bfd)->toc);
+
+ if ((h->descriptor->flags & XCOFF_SET_TOC) != 0) {
+ tocoff += h->descriptor->u.toc_offset;
+ }
+
+
+ /*
+ * The first instruction in the glink code needs to be cooked to
+ * to hold the correct offset in the toc. The rest are just outputted
+ * raw.
+ */
+ bfd_put_32 (output_bfd,
+ bfd_xcoff_glink_code(output_bfd, 0) | (tocoff & 0xffff), p);
+
+ /*
+ * Start with i == 1 to get past the first instruction done above
+ * The /4 is because the glink code is in bytes and we are going 4
+ * at a pop
+ */
+ for (i = 1; i < bfd_xcoff_glink_code_size(output_bfd) / 4; i++) {
+ bfd_put_32 (output_bfd, bfd_xcoff_glink_code(output_bfd, i),
+ &p[4 * i]);
}
+ }
/* If we created a TOC entry for this symbol, write out the required
relocs. */
int oindx;
struct internal_reloc *irel;
struct internal_ldrel ldrel;
+ struct internal_syment irsym;
+ union internal_auxent iraux;
tocsec = h->toc_section;
osec = tocsec->output_section;
irel->r_vaddr = (osec->vma
+ tocsec->output_offset
+ h->u.toc_offset);
- if (h->indx >= 0)
+
+
+ if (h->indx >= 0) {
irel->r_symndx = h->indx;
- else
- {
- h->indx = -2;
- irel->r_symndx = obj_raw_syment_count (output_bfd);
- }
+ } else {
+ h->indx = -2;
+ irel->r_symndx = obj_raw_syment_count (output_bfd);
+ }
+
+ BFD_ASSERT (h->ldindx >= 0);
+
+ /*
+ * Initialize the aux union here instead of closer to when it is
+ * written out below because the length of the csect depends on
+ * whether the output is 32 or 64 bit
+ */
+ memset (&iraux, 0, sizeof iraux);
+ iraux.x_csect.x_smtyp = XTY_SD;
+ /* iraux.x_csect.x_scnlen.l = 4 or 8, see below */
+ iraux.x_csect.x_smclas = XMC_TC;
+
+
+ /*
+ * 32 bit uses a 32 bit R_POS to do the relocations
+ * 64 bit uses a 64 bit R_POS to do the relocations
+ *
+ * Also needs to change the csect size : 4 for 32 bit, 8 for 64 bit
+ *
+ * Which one is determined by the backend
+ */
+ if (bfd_xcoff_is_xcoff64(output_bfd)) {
+ irel->r_size = 63;
+ iraux.x_csect.x_scnlen.l = 8;
+ } else if (bfd_xcoff_is_xcoff32(output_bfd)) {
+ irel->r_size = 31;
+ iraux.x_csect.x_scnlen.l = 4;
+ } else {
+ return false;
+ }
irel->r_type = R_POS;
- irel->r_size = 31;
finfo->section_info[oindx].rel_hashes[osec->reloc_count] = NULL;
++osec->reloc_count;
- BFD_ASSERT (h->ldindx >= 0);
ldrel.l_vaddr = irel->r_vaddr;
ldrel.l_symndx = h->ldindx;
- ldrel.l_rtype = (31 << 8) | R_POS;
+ ldrel.l_rtype = (irel->r_size << 8) | R_POS;
ldrel.l_rsecnm = oindx;
- xcoff_swap_ldrel_out (output_bfd, &ldrel, finfo->ldrel);
- ++finfo->ldrel;
+ bfd_xcoff_swap_ldrel_out (output_bfd, &ldrel, finfo->ldrel);
+ finfo->ldrel += bfd_xcoff_ldrelsz(output_bfd);
+
+ /* We need to emit a symbol to define a csect which holds the reloc. */
+ if (finfo->info->strip != strip_all) {
+
+ result = bfd_xcoff_put_symbol_name (output_bfd, finfo->strtab, &irsym,
+ h->root.root.string);
+ if (false == result) {
+ return false;
+ }
+
+ irsym.n_value = irel->r_vaddr;
+ irsym.n_scnum = osec->target_index;
+ irsym.n_sclass = C_HIDEXT;
+ irsym.n_type = T_NULL;
+ irsym.n_numaux = 1;
+
+ bfd_coff_swap_sym_out (output_bfd, (PTR) &irsym, (PTR) outsym);
+ outsym += bfd_coff_symesz (output_bfd);
+
+ /* note : iraux is initialized above */
+ bfd_coff_swap_aux_out (output_bfd, (PTR) &iraux, T_NULL, C_HIDEXT,
+ 0, 1, (PTR) outsym);
+ outsym += bfd_coff_auxesz (output_bfd);
+
+ if (h->indx >= 0)
+ {
+ /* We aren't going to write out the symbols below, so we
+ need to write them out now. */
+ if (bfd_seek (output_bfd,
+ (obj_sym_filepos (output_bfd)
+ + (obj_raw_syment_count (output_bfd)
+ * bfd_coff_symesz (output_bfd))),
+ SEEK_SET) != 0
+ || (bfd_write (finfo->outsyms, outsym - finfo->outsyms, 1,
+ output_bfd)
+ != (bfd_size_type) (outsym - finfo->outsyms)))
+ return false;
+ obj_raw_syment_count (output_bfd) +=
+ (outsym - finfo->outsyms) / bfd_coff_symesz (output_bfd);
+
+ outsym = finfo->outsyms;
+ }
+ }
}
- /* If this symbol is a specially defined function descriptor, write
- it out. The first word is the address of the function code
- itself, the second word is the address of the TOC, and the third
- word is zero. */
+ /*
+ * If this symbol is a specially defined function descriptor, write
+ * it out. The first word is the address of the function code
+ * itself, the second word is the address of the TOC, and the third
+ * word is zero.
+ *
+ * 32 bit vs 64 bit
+ * The addresses for the 32 bit will take 4 bytes and the addresses
+ * for 64 bit will take 8 bytes. Similar for the relocs. This type
+ * of logic was also done above to create a TOC entry in
+ * xcoff_write_global_symbol
+ */
if ((h->flags & XCOFF_DESCRIPTOR) != 0
&& h->root.type == bfd_link_hash_defined
&& (h->root.u.def.section
struct internal_reloc *irel;
struct internal_ldrel ldrel;
asection *tsec;
+ unsigned int reloc_size, byte_size;
+
+ if (bfd_xcoff_is_xcoff64(output_bfd)) {
+ reloc_size = 63;
+ byte_size = 8;
+ } else if (bfd_xcoff_is_xcoff32(output_bfd)) {
+ reloc_size = 31;
+ byte_size = 4;
+ } else {
+ return false;
+ }
sec = h->root.u.def.section;
osec = sec->output_section;
&& (hentry->root.type == bfd_link_hash_defined
|| hentry->root.type == bfd_link_hash_defweak));
esec = hentry->root.u.def.section;
- bfd_put_32 (output_bfd,
- (esec->output_section->vma
- + esec->output_offset
- + hentry->root.u.def.value),
- p);
irel = finfo->section_info[oindx].relocs + osec->reloc_count;
irel->r_vaddr = (osec->vma
+ h->root.u.def.value);
irel->r_symndx = esec->output_section->target_index;
irel->r_type = R_POS;
- irel->r_size = 31;
+ irel->r_size = reloc_size;
finfo->section_info[oindx].rel_hashes[osec->reloc_count] = NULL;
++osec->reloc_count;
else
{
(*_bfd_error_handler)
- ("%s: loader reloc in unrecognized section `%s'",
+ (_("%s: loader reloc in unrecognized section `%s'"),
bfd_get_filename (output_bfd),
esec->output_section->name);
bfd_set_error (bfd_error_nonrepresentable_section);
return false;
}
- ldrel.l_rtype = (31 << 8) | R_POS;
+ ldrel.l_rtype = (reloc_size << 8) | R_POS;
ldrel.l_rsecnm = oindx;
- xcoff_swap_ldrel_out (output_bfd, &ldrel, finfo->ldrel);
- ++finfo->ldrel;
-
- bfd_put_32 (output_bfd, xcoff_data (output_bfd)->toc, p + 4);
-
- tsec = xcoff_data (output_bfd)->toc_section;
+ bfd_xcoff_swap_ldrel_out (output_bfd, &ldrel, finfo->ldrel);
+ finfo->ldrel += bfd_xcoff_ldrelsz(output_bfd);
+
+ /*
+ * There are three items to write out,
+ * the address of the code
+ * the address of the toc anchor
+ * the environment pointer.
+ * We are ignoring the environment pointer. So set it to zero
+ */
+ if (bfd_xcoff_is_xcoff64(output_bfd)) {
+ bfd_put_64 (output_bfd, (esec->output_section->vma +
+ esec->output_offset +
+ hentry->root.u.def.value), p);
+ bfd_put_64 (output_bfd, xcoff_data (output_bfd)->toc, p + 8);
+ bfd_put_64 (output_bfd, 0, p + 16);
+ } else {
+ /*
+ * 32 bit backend
+ *
+ * This logic was already called above so the error case where
+ * the backend is neither has already been checked
+ */
+ bfd_put_32 (output_bfd, (esec->output_section->vma +
+ esec->output_offset +
+ hentry->root.u.def.value), p);
+ bfd_put_32 (output_bfd, xcoff_data (output_bfd)->toc, p + 4);
+ bfd_put_32 (output_bfd, 0, p + 8);
+ }
+
+ tsec = coff_section_from_bfd_index (output_bfd,
+ xcoff_data (output_bfd)->sntoc);
++irel;
irel->r_vaddr = (osec->vma
+ sec->output_offset
+ h->root.u.def.value
- + 4);
+ + byte_size);
irel->r_symndx = tsec->output_section->target_index;
irel->r_type = R_POS;
- irel->r_size = 31;
+ irel->r_size = reloc_size;
finfo->section_info[oindx].rel_hashes[osec->reloc_count] = NULL;
++osec->reloc_count;
else
{
(*_bfd_error_handler)
- ("%s: loader reloc in unrecognized section `%s'",
+ (_("%s: loader reloc in unrecognized section `%s'"),
bfd_get_filename (output_bfd),
tsec->output_section->name);
bfd_set_error (bfd_error_nonrepresentable_section);
return false;
}
- ldrel.l_rtype = (31 << 8) | R_POS;
+ ldrel.l_rtype = (reloc_size << 8) | R_POS;
ldrel.l_rsecnm = oindx;
- xcoff_swap_ldrel_out (output_bfd, &ldrel, finfo->ldrel);
- ++finfo->ldrel;
+ bfd_xcoff_swap_ldrel_out (output_bfd, &ldrel, finfo->ldrel);
+ finfo->ldrel += bfd_xcoff_ldrelsz(output_bfd);
}
- if (h->indx >= 0)
- return true;
+ if (h->indx >= 0 || finfo->info->strip == strip_all)
+ {
+ BFD_ASSERT (outsym == finfo->outsyms);
+ return true;
+ }
if (h->indx != -2
&& (finfo->info->strip == strip_all
&& (bfd_hash_lookup (finfo->info->keep_hash,
h->root.root.string, false, false)
== NULL))))
- return true;
+ {
+ BFD_ASSERT (outsym == finfo->outsyms);
+ return true;
+ }
if (h->indx != -2
&& (h->flags & (XCOFF_REF_REGULAR | XCOFF_DEF_REGULAR)) == 0)
- return true;
-
- outsym = finfo->outsyms;
+ {
+ BFD_ASSERT (outsym == finfo->outsyms);
+ return true;
+ }
memset (&aux, 0, sizeof aux);
h->indx = obj_raw_syment_count (output_bfd);
- if (strlen (h->root.root.string) <= SYMNMLEN)
- strncpy (isym._n._n_name, h->root.root.string, SYMNMLEN);
- else
- {
- boolean hash;
- bfd_size_type indx;
-
- hash = true;
- if ((output_bfd->flags & BFD_TRADITIONAL_FORMAT) != 0)
- hash = false;
- indx = _bfd_stringtab_add (finfo->strtab, h->root.root.string, hash,
- false);
- if (indx == (bfd_size_type) -1)
- return false;
- isym._n._n_n._n_zeroes = 0;
- isym._n._n_n._n_offset = STRING_SIZE_SIZE + indx;
- }
+ result = bfd_xcoff_put_symbol_name (output_bfd, finfo->strtab, &isym,
+ h->root.root.string);
+ if (false == result) {
+ return false;
+ }
if (h->root.type == bfd_link_hash_undefined
|| h->root.type == bfd_link_hash_undefweak)
isym.n_sclass = C_EXT;
aux.x_csect.x_smtyp = XTY_ER;
}
+ else if ((h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak)
+ && h->smclas == XMC_XO)
+ {
+ BFD_ASSERT (bfd_is_abs_section (h->root.u.def.section));
+ isym.n_value = h->root.u.def.value;
+ isym.n_scnum = N_UNDEF;
+ isym.n_sclass = C_EXT;
+ aux.x_csect.x_smtyp = XTY_ER;
+ }
else if (h->root.type == bfd_link_hash_defined
|| h->root.type == bfd_link_hash_defweak)
{
outsym += bfd_coff_symesz (output_bfd);
aux.x_csect.x_smclas = h->smclas;
-
bfd_coff_swap_aux_out (output_bfd, (PTR) &aux, T_NULL, isym.n_sclass, 0, 1,
(PTR) outsym);
outsym += bfd_coff_auxesz (output_bfd);
- if (h->root.type == bfd_link_hash_defined
- || h->root.type == bfd_link_hash_defweak)
+ if ((h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak)
+ && h->smclas != XMC_XO)
{
/* We just output an SD symbol. Now output an LD symbol. */
aux.x_csect.x_smtyp = XTY_LD;
aux.x_csect.x_scnlen.l = obj_raw_syment_count (output_bfd);
-
bfd_coff_swap_aux_out (output_bfd, (PTR) &aux, T_NULL, C_EXT, 0, 1,
(PTR) outsym);
outsym += bfd_coff_auxesz (output_bfd);
return false;
}
- h = xcoff_link_hash_lookup (xcoff_hash_table (finfo->info),
- link_order->u.reloc.p->u.name,
- false, false, true);
+ h = ((struct xcoff_link_hash_entry *)
+ bfd_wrapped_link_hash_lookup (output_bfd, finfo->info,
+ link_order->u.reloc.p->u.name,
+ false, false, true));
if (h == NULL)
{
if (! ((*finfo->info->callbacks->unattached_reloc)
else
{
(*_bfd_error_handler)
- ("%s: loader reloc in unrecognized section `%s'",
+ (_("%s: loader reloc in unrecognized section `%s'"),
bfd_get_filename (output_bfd), secname);
bfd_set_error (bfd_error_nonrepresentable_section);
return false;
if (h->ldindx < 0)
{
(*_bfd_error_handler)
- ("%s: `%s' in loader reloc but not loader sym",
+ (_("%s: `%s' in loader reloc but not loader sym"),
bfd_get_filename (output_bfd),
h->root.root.string);
bfd_set_error (bfd_error_bad_value);
ldrel.l_rtype = (irel->r_size << 8) | irel->r_type;
ldrel.l_rsecnm = output_section->target_index;
- xcoff_swap_ldrel_out (output_bfd, &ldrel, finfo->ldrel);
- ++finfo->ldrel;
+ bfd_xcoff_swap_ldrel_out (output_bfd, &ldrel, finfo->ldrel);
+ finfo->ldrel += bfd_xcoff_ldrelsz(output_bfd);
return true;
}
return 0;
}
-/* This is the relocation function for the RS/6000/POWER/PowerPC.
- This is currently the only processor which uses XCOFF; I hope that
- will never change. */
-
-boolean
-_bfd_ppc_xcoff_relocate_section (output_bfd, info, input_bfd,
- input_section, contents, relocs, syms,
- sections)
- bfd *output_bfd;
- struct bfd_link_info *info;
- bfd *input_bfd;
- asection *input_section;
- bfd_byte *contents;
- struct internal_reloc *relocs;
- struct internal_syment *syms;
- asection **sections;
-{
- struct internal_reloc *rel;
- struct internal_reloc *relend;
-
- rel = relocs;
- relend = rel + input_section->reloc_count;
- for (; rel < relend; rel++)
- {
- long symndx;
- struct xcoff_link_hash_entry *h;
- struct internal_syment *sym;
- bfd_vma addend;
- bfd_vma val;
- struct reloc_howto_struct howto;
- bfd_reloc_status_type rstat;
-
- /* Relocation type R_REF is a special relocation type which is
- merely used to prevent garbage collection from occurring for
- the csect including the symbol which it references. */
- if (rel->r_type == R_REF)
- continue;
-
- symndx = rel->r_symndx;
-
- if (symndx == -1)
- {
- h = NULL;
- sym = NULL;
- addend = 0;
- }
- else
- {
- h = obj_xcoff_sym_hashes (input_bfd)[symndx];
- sym = syms + symndx;
- addend = - sym->n_value;
- }
-
- /* We build the howto information on the fly. */
-
- howto.type = rel->r_type;
- howto.rightshift = 0;
- howto.size = 2;
- howto.bitsize = (rel->r_size & 0x1f) + 1;
- howto.pc_relative = false;
- howto.bitpos = 0;
- if ((rel->r_size & 0x80) != 0)
- howto.complain_on_overflow = complain_overflow_signed;
- else
- howto.complain_on_overflow = complain_overflow_bitfield;
- howto.special_function = NULL;
- howto.name = "internal";
- howto.partial_inplace = true;
- if (howto.bitsize == 32)
- howto.src_mask = howto.dst_mask = 0xffffffff;
- else
- {
- howto.src_mask = howto.dst_mask = (1 << howto.bitsize) - 1;
- if (howto.bitsize == 16)
- howto.size = 1;
- }
- howto.pcrel_offset = false;
-
- val = 0;
-
- if (h == NULL)
- {
- asection *sec;
-
- if (symndx == -1)
- {
- sec = bfd_abs_section_ptr;
- val = 0;
- }
- else
- {
- sec = sections[symndx];
- /* Hack to make sure we use the right TOC anchor value
- if this reloc is against the TOC anchor. */
- if (sec->name[3] == '0'
- && strcmp (sec->name, ".tc0") == 0)
- val = xcoff_data (output_bfd)->toc;
- else
- val = (sec->output_section->vma
- + sec->output_offset
- + sym->n_value
- - sec->vma);
- }
- }
- else
- {
- if (h->root.type == bfd_link_hash_defined
- || h->root.type == bfd_link_hash_defweak)
- {
- asection *sec;
-
- sec = h->root.u.def.section;
- val = (h->root.u.def.value
- + sec->output_section->vma
- + sec->output_offset);
- }
- else if (h->root.type == bfd_link_hash_common)
- {
- asection *sec;
-
- sec = h->root.u.c.p->section;
- val = (sec->output_section->vma
- + sec->output_offset);
- }
- else if ((h->flags & XCOFF_DEF_DYNAMIC) != 0
- || (h->flags & XCOFF_IMPORT) != 0)
- {
- /* Every symbol in a shared object is defined somewhere. */
- val = 0;
- }
- else if (! info->relocateable
- && ! info->shared)
- {
- if (! ((*info->callbacks->undefined_symbol)
- (info, h->root.root.string, input_bfd, input_section,
- rel->r_vaddr - input_section->vma)))
- return false;
- }
- }
-
- /* I took the relocation type definitions from two documents:
- the PowerPC AIX Version 4 Application Binary Interface, First
- Edition (April 1992), and the PowerOpen ABI, Big-Endian
- 32-Bit Hardware Implementation (June 30, 1994). Differences
- between the documents are noted below. */
-
- switch (rel->r_type)
- {
- case R_RTB:
- case R_RRTBI:
- case R_RRTBA:
- /* These relocs are defined by the PowerPC ABI to be
- relative branches which use half of the difference
- between the symbol and the program counter. I can't
- quite figure out when this is useful. These relocs are
- not defined by the PowerOpen ABI. */
- default:
- (*_bfd_error_handler)
- ("%s: unsupported relocation type 0x%02x",
- bfd_get_filename (input_bfd), (unsigned int) rel->r_type);
- bfd_set_error (bfd_error_bad_value);
- return false;
- case R_POS:
- /* Simple positive relocation. */
- break;
- case R_NEG:
- /* Simple negative relocation. */
- val = - val;
- break;
- case R_REL:
- /* Simple PC relative relocation. */
- howto.pc_relative = true;
- break;
- case R_TOC:
- /* TOC relative relocation. The value in the instruction in
- the input file is the offset from the input file TOC to
- the desired location. We want the offset from the final
- TOC to the desired location. We have:
- isym = iTOC + in
- iinsn = in + o
- osym = oTOC + on
- oinsn = on + o
- so we must change insn by on - in.
- */
- case R_GL:
- /* Global linkage relocation. The value of this relocation
- is the address of the entry in the TOC section. */
- case R_TCL:
- /* Local object TOC address. I can't figure out the
- difference between this and case R_GL. */
- case R_TRL:
- /* TOC relative relocation. A TOC relative load instruction
- which may be changed to a load address instruction.
- FIXME: We don't currently implement this optimization. */
- case R_TRLA:
- /* TOC relative relocation. This is a TOC relative load
- address instruction which may be changed to a load
- instruction. FIXME: I don't know if this is the correct
- implementation. */
- if (h != NULL && h->toc_section == NULL)
- {
- (*_bfd_error_handler)
- ("%s: TOC reloc at 0x%x to symbol `%s' with no TOC entry",
- bfd_get_filename (input_bfd), rel->r_vaddr,
- h->root.root.string);
- bfd_set_error (bfd_error_bad_value);
- return false;
- }
- if (h != NULL)
- {
- BFD_ASSERT ((h->flags & XCOFF_SET_TOC) == 0);
- val = (h->toc_section->output_section->vma
- + h->toc_section->output_offset);
- }
- val = ((val - xcoff_data (output_bfd)->toc)
- - (sym->n_value - xcoff_data (input_bfd)->toc));
- addend = 0;
- break;
- case R_BA:
- /* Absolute branch. We don't want to mess with the lower
- two bits of the instruction. */
- case R_CAI:
- /* The PowerPC ABI defines this as an absolute call which
- may be modified to become a relative call. The PowerOpen
- ABI does not define this relocation type. */
- case R_RBA:
- /* Absolute branch which may be modified to become a
- relative branch. */
- case R_RBAC:
- /* The PowerPC ABI defines this as an absolute branch to a
- fixed address which may be modified to an absolute branch
- to a symbol. The PowerOpen ABI does not define this
- relocation type. */
- case R_RBRC:
- /* The PowerPC ABI defines this as an absolute branch to a
- fixed address which may be modified to a relative branch.
- The PowerOpen ABI does not define this relocation type. */
- howto.src_mask &= ~3;
- howto.dst_mask = howto.src_mask;
- break;
- case R_BR:
- /* Relative branch. We don't want to mess with the lower
- two bits of the instruction. */
- case R_CREL:
- /* The PowerPC ABI defines this as a relative call which may
- be modified to become an absolute call. The PowerOpen
- ABI does not define this relocation type. */
- case R_RBR:
- /* A relative branch which may be modified to become an
- absolute branch. FIXME: We don't implement this,
- although we should for symbols of storage mapping class
- XMC_XO. */
- howto.pc_relative = true;
- howto.src_mask &= ~3;
- howto.dst_mask = howto.src_mask;
- break;
- case R_RL:
- /* The PowerPC AIX ABI describes this as a load which may be
- changed to a load address. The PowerOpen ABI says this
- is the same as case R_POS. */
- break;
- case R_RLA:
- /* The PowerPC AIX ABI describes this as a load address
- which may be changed to a load. The PowerOpen ABI says
- this is the same as R_POS. */
- break;
- }
-
- /* If we see an R_BR or R_RBR reloc which is jumping to global
- linkage code, and it is followed by an appropriate cror nop
- instruction, we replace the cror with lwz r2,20(r1). This
- restores the TOC after the glink code. Contrariwise, if the
- call is followed by a lwz r2,20(r1), but the call is not
- going to global linkage code, we can replace the load with a
- cror. */
- if ((rel->r_type == R_BR || rel->r_type == R_RBR)
- && h != NULL
- && h->root.type == bfd_link_hash_defined
- && (rel->r_vaddr - input_section->vma + 8
- <= input_section->_cooked_size))
- {
- bfd_byte *pnext;
- unsigned long next;
-
- pnext = contents + (rel->r_vaddr - input_section->vma) + 4;
- next = bfd_get_32 (input_bfd, pnext);
- if (h->smclas == XMC_GL)
- {
- if (next == 0x4def7b82 /* cror 15,15,15 */
- || next == 0x4ffffb82) /* cror 31,31,31 */
- bfd_put_32 (input_bfd, 0x80410014, pnext); /* lwz r1,20(r1) */
- }
- else
- {
- if (next == 0x80410014) /* lwz r1,20(r1) */
- bfd_put_32 (input_bfd, 0x4ffffb82, pnext); /* cror 31,31,31 */
- }
- }
-
- /* A PC relative reloc includes the section address. */
- if (howto.pc_relative)
- addend += input_section->vma;
-
- rstat = _bfd_final_link_relocate (&howto, input_bfd, input_section,
- contents,
- rel->r_vaddr - input_section->vma,
- val, addend);
-
- switch (rstat)
- {
- default:
- abort ();
- case bfd_reloc_ok:
- break;
- case bfd_reloc_overflow:
- {
- const char *name;
- char buf[SYMNMLEN + 1];
- char howto_name[10];
- if (symndx == -1)
- name = "*ABS*";
- else if (h != NULL)
- name = h->root.root.string;
- else
- {
- name = _bfd_coff_internal_syment_name (input_bfd, sym, buf);
- if (name == NULL)
- return false;
- }
- sprintf (howto_name, "0x%02x", rel->r_type);
- if (! ((*info->callbacks->reloc_overflow)
- (info, name, howto_name, (bfd_vma) 0, input_bfd,
- input_section, rel->r_vaddr - input_section->vma)))
- return false;
- }
- }
- }
- return true;
-}
projects / deliverable / binutils-gdb.git / blobdiff