/* BFD backend for CRIS a.out binaries.
- Copyright (C) 2000 Free Software Foundation, Inc.
+ Copyright (C) 2000-2020 Free Software Foundation, Inc.
Contributed by Axis Communications AB.
Written by Hans-Peter Nilsson.
-This file is part of BFD, the Binary File Descriptor library.
+ This file is part of BFD, the Binary File Descriptor library.
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
/* See info in the file PORTING for documentation of these macros and
functions. Beware; some of the information there is outdated. */
#define N_HEADER_IN_TEXT(x) 0
-#define BYTES_IN_WORD 4
-#define N_TXTOFF(x) 32
+#define N_TXTOFF(x) 32
#define ENTRY_CAN_BE_ZERO
-#define TEXT_START_ADDR 0
+#define TEXT_START_ADDR 0
+
+/* Without reading symbols to get the text start symbol, there is no way
+ to know where the text segment starts in an a.out file. Defaulting to
+ anything as constant as TEXT_START_ADDR is bad. But we can guess from
+ the entry point, which is usually within the first 64k of the text
+ segment. We also assume here that the text segment is 64k-aligned.
+ FIXME: It is also wrong to assume that data and bss follow immediately
+ after text, but with those, we don't have any choice besides reading
+ symbol info, and luckily there's no pressing need for correctness for
+ those vma:s at this time. */
+#define N_TXTADDR(x) ((x)->a_entry & ~(bfd_vma) 0xffff)
/* If you change this to 4, you can not link to an address N*4+2. */
#define SEGMENT_SIZE 2
adata(abfd).zmagic_disk_block_size, even though the exec_header is
*not* included in the text segment. A simple workaround is to
#define ZMAGIC_DISK_BLOCK_SIZE, which is used if defined; otherwise
- TARGET_PAGE_SIZE is used. */
-#define ZMAGIC_DISK_BLOCK_SIZE N_TXTOFF (0)
+ TARGET_PAGE_SIZE is used. */
+#define ZMAGIC_DISK_BLOCK_SIZE N_TXTOFF (0)
/* It seems odd at first to set a page-size this low, but gives greater
freedom in where things can be linked. The drawback is that you have
#define TARGET_PAGE_SIZE SEGMENT_SIZE
#define TARGETNAME "a.out-cris"
-/* N_SHARED_LIB gets this reasonable default as of 1999-07-12, but we
- have to work with 2.9.1. Note that N_SHARED_LIB is used in a
- SUN-specific context, not applicable to CRIS. */
-#define N_SHARED_LIB(x) 0
-
-/* The definition here seems not used; just provided as a convention. */
-#define DEFAULT_ARCH bfd_arch_cris
-
-/* ??? Spacing might be essential for the parameters in this macro.
- Do Not Change. */
-#define MY(OP) CAT (cris_aout_,OP)
-#define NAME(x,y) CAT3(cris_aout,_32_,y)
+/* Do not "beautify" the CONCAT* macro args. Traditional C will not
+ remove whitespace added here, and thus will fail to concatenate
+ the tokens. */
+#define MY(OP) CONCAT2 (cris_aout_,OP)
+#define NAME(x, y) CONCAT3 (cris_aout,_32_,y)
+#include "sysdep.h"
#include "bfd.h"
/* Version 1 of the header. */
#define MY_exec_hdr_flags 1
-#define MY_write_object_contents MY(write_object_contents)
-static boolean MY(write_object_contents) PARAMS ((bfd *));
+#define MY_write_object_contents MY (write_object_contents)
+static bfd_boolean MY (write_object_contents) (bfd *);
/* Forward this, so we can use a pointer to it in PARAMS. */
struct reloc_ext_external;
-#define MY_swap_ext_reloc_out MY(swap_ext_reloc_out)
-static void MY(swap_ext_reloc_out) PARAMS ((bfd *, arelent *,
- struct reloc_ext_external *));
+#define MY_swap_ext_reloc_out MY (swap_ext_reloc_out)
+static void MY (swap_ext_reloc_out) (bfd *, arelent *, struct reloc_ext_external *);
-#define MY_swap_ext_reloc_in MY(swap_ext_reloc_in)
-static void MY(swap_ext_reloc_in) PARAMS ((bfd *, struct
- reloc_ext_external *,
- arelent *, asymbol **,
- bfd_size_type));
+#define MY_swap_ext_reloc_in MY (swap_ext_reloc_in)
+static void MY (swap_ext_reloc_in) (bfd *, struct reloc_ext_external *,
+ arelent *, asymbol **, bfd_size_type);
-#define MY_set_sizes MY(set_sizes)
-static boolean MY(set_sizes) PARAMS ((bfd *));
+#define MY_set_sizes MY (set_sizes)
+static bfd_boolean MY (set_sizes) (bfd *);
-/* To set back reloc_size to ext, we make MY(set_sizes) be called
+/* To set back reloc_size to ext, we make MY (set_sizes) be called
through this construct. Note that MY_set_arch_mach is only called
through SET_ARCH_MACH. The default bfd_default_set_arch_mach will
not call set_sizes. */
-#define MY_set_arch_mach NAME (aout, set_arch_mach)
-#define SET_ARCH_MACH(BFD, EXEC) \
- MY_set_arch_mach (BFD, DEFAULT_ARCH, N_MACHTYPE (EXEC))
+#define SET_ARCH_MACH(BFD, EXECP) \
+ bfd_set_arch_mach (BFD, bfd_arch_cris, N_MACHTYPE (EXECP))
/* These macros describe the binary layout of the reloc information we
use in a file. */
-#define RELOC_EXT_BITS_EXTERN_LITTLE 0x80
-#define RELOC_EXT_BITS_TYPE_LITTLE 3
+#define RELOC_EXT_BITS_EXTERN_LITTLE 0x80
+#define RELOC_EXT_BITS_TYPE_LITTLE 3
#define RELOC_EXT_BITS_TYPE_SH_LITTLE 0
#ifndef MY_get_section_contents
#define MY_get_section_contents aout_32_get_section_contents
#endif
+#define MACHTYPE_OK(mtype) ((mtype) == M_CRIS)
+
/* Include generic functions (some are overridden above). */
#include "aout32.c"
#include "aout-target.h"
-
/* We need our own version to set header flags. */
-static boolean
-MY(write_object_contents) (abfd)
- bfd *abfd;
+static bfd_boolean
+MY (write_object_contents) (bfd *abfd)
{
struct external_exec exec_bytes;
struct internal_exec *execp = exec_hdr (abfd);
/* Setting N_SET_MACHTYPE and using N_SET_FLAGS is not performed by
the default definition. */
- if (bfd_get_arch(abfd) == bfd_arch_cris)
- N_SET_MACHTYPE(*execp, M_CRIS);
+ if (bfd_get_arch (abfd) == bfd_arch_cris)
+ N_SET_MACHTYPE (execp, M_CRIS);
- N_SET_FLAGS (*execp, aout_backend_info (abfd)->exec_hdr_flags);
+ N_SET_FLAGS (execp, aout_backend_info (abfd)->exec_hdr_flags);
WRITE_HEADERS (abfd, execp);
- return true;
+ return TRUE;
}
-
/* We need our own for these reasons:
- - Assert that a normal 8, 16 or 32 reloc is output.
- - Fix what seems to be a weak-bug (perhaps there for valid reasons). */
+ - Assert that a normal 8, 16 or 32 reloc is output.
+ - Fix what seems to be a weak-bug (perhaps there for valid reasons). */
static void
-MY(swap_ext_reloc_out) (abfd, g, natptr)
- bfd *abfd;
- arelent *g;
- struct reloc_ext_external *natptr;
+MY (swap_ext_reloc_out) (bfd *abfd,
+ arelent *g,
+ struct reloc_ext_external *natptr)
{
int r_index;
int r_extern;
unsigned int r_type;
- unsigned int r_addend;
+ bfd_vma r_addend;
asymbol *sym = *(g->sym_ptr_ptr);
asection *output_section = sym->section->output_section;
from the abs section, or as a symbol which has an abs value.
check for that here. */
- if (bfd_is_abs_section (bfd_get_section (sym)))
+ if (bfd_is_abs_section (bfd_asymbol_section (sym)))
{
r_extern = 0;
r_index = N_ABS;
}
else if ((sym->flags & BSF_SECTION_SYM) == 0)
{
- if (bfd_is_und_section (bfd_get_section (sym))
+ if (bfd_is_und_section (bfd_asymbol_section (sym))
/* Remember to check for weak symbols; they count as global. */
|| (sym->flags & (BSF_GLOBAL | BSF_WEAK)) != 0)
r_extern = 1;
We may change this later, but assert this for the moment. */
if (r_type > 2)
{
- (*_bfd_error_handler) (_("%s: Invalid relocation type exported: %d"),
- bfd_get_filename (abfd), r_type);
-
+ /* xgettext:c-format */
+ _bfd_error_handler (_("%pB: unsupported relocation type exported: %#x"),
+ abfd, r_type);
+
bfd_set_error (bfd_error_wrong_format);
}
PUT_WORD (abfd, r_addend, natptr->r_addend);
}
-
/* We need our own to assert that a normal 8, 16 or 32 reloc is input. */
static void
-MY(swap_ext_reloc_in) (abfd, bytes, cache_ptr, symbols, symcount)
- bfd *abfd;
- struct reloc_ext_external *bytes;
- arelent *cache_ptr;
- asymbol **symbols;
- bfd_size_type symcount;
+MY (swap_ext_reloc_in) (bfd *abfd,
+ struct reloc_ext_external *bytes,
+ arelent *cache_ptr,
+ asymbol **symbols,
+ bfd_size_type symcount)
{
unsigned int r_index;
int r_extern;
cache_ptr->address = (GET_SWORD (abfd, bytes->r_address));
/* Now the fun stuff. */
- r_index = (bytes->r_index[2] << 16)
- | (bytes->r_index[1] << 8)
- | bytes->r_index[0];
+ r_index = (((unsigned int) bytes->r_index[2] << 16)
+ | ((unsigned int) bytes->r_index[1] << 8)
+ | bytes->r_index[0]);
+
r_extern = (0 != (bytes->r_type[0] & RELOC_EXT_BITS_EXTERN_LITTLE));
- r_type = ((bytes->r_type[0]) >> RELOC_EXT_BITS_TYPE_SH_LITTLE)
- & RELOC_EXT_BITS_TYPE_LITTLE;
+
+ r_type = ((bytes->r_type[0] & RELOC_EXT_BITS_TYPE_LITTLE)
+ >> RELOC_EXT_BITS_TYPE_SH_LITTLE);
if (r_type > 2)
{
- (*_bfd_error_handler) (_("%s: Invalid relocation type imported: %d"),
- bfd_get_filename (abfd), r_type);
-
- bfd_set_error(bfd_error_wrong_format);
+ /* xgettext:c-format */
+ _bfd_error_handler (_("%pB: unsupported relocation type imported: %#x"),
+ abfd, r_type);
+
+ bfd_set_error (bfd_error_wrong_format);
}
-
+
cache_ptr->howto = howto_table_ext + r_type;
if (r_extern && r_index > symcount)
{
- (*_bfd_error_handler)
- (_("%s: Bad relocation record imported: %d"),
- bfd_get_filename (abfd), r_index);
-
+ _bfd_error_handler
+ /* xgettext:c-format */
+ (_("%pB: bad relocation record imported: %d"), abfd, r_index);
+
bfd_set_error (bfd_error_wrong_format);
/* We continue, so we can catch further errors. */
MOVE_ADDRESS (GET_SWORD (abfd, bytes->r_addend));
}
-
/* We use the same as the default, except that we also set
"obj_reloc_entry_size (abfd) = RELOC_EXT_SIZE;", to avoid changing
NAME (aout, set_arch_mach) in aoutx. */
-static boolean
-MY(set_sizes) (abfd)
- bfd *abfd;
+static bfd_boolean
+MY (set_sizes) (bfd *abfd)
{
/* Just as the default in aout-target.h (with some #ifdefs folded)... */
- adata(abfd).page_size = TARGET_PAGE_SIZE;
- adata(abfd).segment_size = SEGMENT_SIZE;
- adata(abfd).zmagic_disk_block_size = ZMAGIC_DISK_BLOCK_SIZE;
- adata(abfd).exec_bytes_size = EXEC_BYTES_SIZE;
+ adata (abfd).page_size = TARGET_PAGE_SIZE;
+ adata (abfd).segment_size = SEGMENT_SIZE;
+ adata (abfd).zmagic_disk_block_size = ZMAGIC_DISK_BLOCK_SIZE;
+ adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE;
/* ... except for that we have the extended reloc. The alternative
would be to add a check on bfd_arch_cris in NAME (aout,
target-specific things should not be added there. */
obj_reloc_entry_size (abfd) = RELOC_EXT_SIZE;
-
- return true;
-}
-/*
- * Local variables:
- * eval: (c-set-style "gnu")
- * indent-tabs-mode: t
- * End:
- */
+ return TRUE;
+}