/* MIPS-specific support for ELF
- Copyright 1993-2013 Free Software Foundation, Inc.
+ Copyright (C) 1993-2016 Free Software Foundation, Inc.
Most of the information added by Ian Lance Taylor, Cygnus Support,
<ian@cygnus.com>.
#include "elfxx-mips.h"
#include "elf/mips.h"
#include "elf-vxworks.h"
+#include "dwarf2.h"
/* Get the ECOFF swapping routines. */
#include "coff/sym.h"
unsigned int page_gotno;
/* The number of relocations needed for the GOT entries. */
unsigned int relocs;
- /* The number of local .got entries we have used. */
- unsigned int assigned_gotno;
+ /* The first unused local .got entry. */
+ unsigned int assigned_low_gotno;
+ /* The last unused local .got entry. */
+ unsigned int assigned_high_gotno;
/* A hash table holding members of the got. */
struct htab *got_entries;
/* A hash table holding mips_got_page_ref structures. */
/* Input BFD providing Tag_GNU_MIPS_ABI_MSA attribute for output. */
bfd *abi_msa_bfd;
+ /* The abiflags for this object. */
+ Elf_Internal_ABIFlags_v0 abiflags;
+ bfd_boolean abiflags_valid;
+
/* The GOT requirements of input bfds. */
struct mips_got_info *got;
#define PIC_OBJECT_P(abfd) \
((elf_elfheader (abfd)->e_flags & EF_MIPS_PIC) != 0)
+/* Nonzero if ABFD is using the O32 ABI. */
+#define ABI_O32_P(abfd) \
+ ((elf_elfheader (abfd)->e_flags & EF_MIPS_ABI) == E_MIPS_ABI_O32)
+
/* Nonzero if ABFD is using the N32 ABI. */
#define ABI_N32_P(abfd) \
((elf_elfheader (abfd)->e_flags & EF_MIPS_ABI2) != 0)
#define MICROMIPS_P(abfd) \
((elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH_ASE_MICROMIPS) != 0)
+/* Nonzero if ABFD is MIPS R6. */
+#define MIPSR6_P(abfd) \
+ ((elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_32R6 \
+ || (elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_64R6)
+
/* The IRIX compatibility level we are striving for. */
#define IRIX_COMPAT(abfd) \
(get_elf_backend_data (abfd)->elf_backend_mips_irix_compat (abfd))
#define MIPS_ELF_OPTIONS_SECTION_NAME_P(NAME) \
(strcmp (NAME, ".MIPS.options") == 0 || strcmp (NAME, ".options") == 0)
+/* True if NAME is the recognized name of any SHT_MIPS_ABIFLAGS section. */
+#define MIPS_ELF_ABIFLAGS_SECTION_NAME_P(NAME) \
+ (strcmp (NAME, ".MIPS.abiflags") == 0)
+
/* Whether the section is readonly. */
#define MIPS_ELF_READONLY_SECTION(sec) \
((sec->flags & (SEC_ALLOC | SEC_LOAD | SEC_READONLY)) \
((ABI_64_P (abfd) \
? 0xdf998010 /* ld t9,0x8010(gp) */ \
: 0x8f998010)) /* lw t9,0x8010(gp) */
-#define STUB_MOVE(abfd) \
- ((ABI_64_P (abfd) \
- ? 0x03e0782d /* daddu t7,ra */ \
- : 0x03e07821)) /* addu t7,ra */
+#define STUB_MOVE 0x03e07825 /* or t7,ra,zero */
#define STUB_LUI(VAL) (0x3c180000 + (VAL)) /* lui t8,VAL */
#define STUB_JALR 0x0320f809 /* jalr t9,ra */
#define STUB_ORI(VAL) (0x37180000 + (VAL)) /* ori t8,t8,VAL */
? 0xdf3c8010 /* ld t9,0x8010(gp) */ \
: 0xff3c8010) /* lw t9,0x8010(gp) */
#define STUB_MOVE_MICROMIPS 0x0dff /* move t7,ra */
-#define STUB_MOVE32_MICROMIPS(abfd) \
- (ABI_64_P (abfd) \
- ? 0x581f7950 /* daddu t7,ra,zero */ \
- : 0x001f7950) /* addu t7,ra,zero */
+#define STUB_MOVE32_MICROMIPS 0x001f7a90 /* or t7,ra,zero */
#define STUB_LUI_MICROMIPS(VAL) \
(0x41b80000 + (VAL)) /* lui t8,VAL */
#define STUB_JALR_MICROMIPS 0x45d9 /* jalr t9 */
0x8f990000, /* lw $25, %lo(&GOTPLT[0])($28) */
0x279c0000, /* addiu $28, $28, %lo(&GOTPLT[0]) */
0x031cc023, /* subu $24, $24, $28 */
- 0x03e07821, /* move $15, $31 # 32-bit move (addu) */
+ 0x03e07825, /* or t7, ra, zero */
0x0018c082, /* srl $24, $24, 2 */
0x0320f809, /* jalr $25 */
0x2718fffe /* subu $24, $24, 2 */
0x8dd90000, /* lw $25, %lo(&GOTPLT[0])($14) */
0x25ce0000, /* addiu $14, $14, %lo(&GOTPLT[0]) */
0x030ec023, /* subu $24, $24, $14 */
- 0x03e07821, /* move $15, $31 # 32-bit move (addu) */
+ 0x03e07825, /* or t7, ra, zero */
0x0018c082, /* srl $24, $24, 2 */
0x0320f809, /* jalr $25 */
0x2718fffe /* subu $24, $24, 2 */
0xddd90000, /* ld $25, %lo(&GOTPLT[0])($14) */
0x25ce0000, /* addiu $14, $14, %lo(&GOTPLT[0]) */
0x030ec023, /* subu $24, $24, $14 */
- 0x03e0782d, /* move $15, $31 # 64-bit move (daddu) */
+ 0x03e07825, /* or t7, ra, zero */
0x0018c0c2, /* srl $24, $24, 3 */
0x0320f809, /* jalr $25 */
0x2718fffe /* subu $24, $24, 2 */
0xff3c, 0x0000, /* lw $25, %lo(&GOTPLT[0])($28) */
0x339c, 0x0000, /* addiu $28, $28, %lo(&GOTPLT[0]) */
0x0398, 0xc1d0, /* subu $24, $24, $28 */
- 0x001f, 0x7950, /* move $15, $31 */
+ 0x001f, 0x7a90, /* or $15, $31, zero */
0x0318, 0x1040, /* srl $24, $24, 2 */
0x03f9, 0x0f3c, /* jalr $25 */
0x3318, 0xfffe /* subu $24, $24, 2 */
0x03200008 /* jr $25 */
};
+/* In the following PLT entry the JR and ADDIU instructions will
+ be swapped in _bfd_mips_elf_finish_dynamic_symbol because
+ LOAD_INTERLOCKS_P will be true for MIPS R6. */
+static const bfd_vma mipsr6_exec_plt_entry[] =
+{
+ 0x3c0f0000, /* lui $15, %hi(.got.plt entry) */
+ 0x01f90000, /* l[wd] $25, %lo(.got.plt entry)($15) */
+ 0x25f80000, /* addiu $24, $15, %lo(.got.plt entry) */
+ 0x03200009 /* jr $25 */
+};
+
/* The format of subsequent MIPS16 o32 PLT entries. We use v0 ($2)
and v1 ($3) as temporaries because t8 ($24) and t9 ($25) are not
directly addressable. */
{
struct bfd_link_hash_entry *bh;
struct elf_link_hash_entry *elfh;
- const char *name;
+ char *name;
+ bfd_boolean res;
if (ELF_ST_IS_MICROMIPS (h->root.other))
value |= 1;
/* Create a new symbol. */
- name = ACONCAT ((prefix, h->root.root.root.string, NULL));
+ name = concat (prefix, h->root.root.root.string, NULL);
bh = NULL;
- if (!_bfd_generic_link_add_one_symbol (info, s->owner, name,
- BSF_LOCAL, s, value, NULL,
- TRUE, FALSE, &bh))
+ res = _bfd_generic_link_add_one_symbol (info, s->owner, name,
+ BSF_LOCAL, s, value, NULL,
+ TRUE, FALSE, &bh);
+ free (name);
+ if (! res)
return FALSE;
/* Make it a local function. */
{
struct bfd_link_hash_entry *bh;
struct elf_link_hash_entry *elfh;
- const char *name;
+ char *name;
asection *s;
bfd_vma value;
+ bfd_boolean res;
/* Read the symbol's value. */
BFD_ASSERT (h->root.root.type == bfd_link_hash_defined
value = h->root.root.u.def.value;
/* Create a new symbol. */
- name = ACONCAT ((prefix, h->root.root.root.string, NULL));
+ name = concat (prefix, h->root.root.root.string, NULL);
bh = NULL;
- if (!_bfd_generic_link_add_one_symbol (info, s->owner, name,
- BSF_LOCAL, s, value, NULL,
- TRUE, FALSE, &bh))
+ res = _bfd_generic_link_add_one_symbol (info, s->owner, name,
+ BSF_LOCAL, s, value, NULL,
+ TRUE, FALSE, &bh);
+ free (name);
+ if (! res)
return FALSE;
/* Make it local and copy the other attributes from H. */
h->fn_stub->flags &= ~SEC_RELOC;
h->fn_stub->reloc_count = 0;
h->fn_stub->flags |= SEC_EXCLUDE;
+ h->fn_stub->output_section = bfd_abs_section_ptr;
}
if (h->call_stub != NULL
h->call_stub->flags &= ~SEC_RELOC;
h->call_stub->reloc_count = 0;
h->call_stub->flags |= SEC_EXCLUDE;
+ h->call_stub->output_section = bfd_abs_section_ptr;
}
if (h->call_fp_stub != NULL
h->call_fp_stub->flags &= ~SEC_RELOC;
h->call_fp_stub->reloc_count = 0;
h->call_fp_stub->flags |= SEC_EXCLUDE;
+ h->call_fp_stub->output_section = bfd_abs_section_ptr;
}
}
struct mips_htab_traverse_info *hti;
hti = (struct mips_htab_traverse_info *) data;
- if (!hti->info->relocatable)
+ if (!bfd_link_relocatable (hti->info))
mips_elf_check_mips16_stubs (hti->info, h);
if (mips_elf_local_pic_function_p (h))
being PIC. If we're creating a non-relocatable object with
non-PIC branches and jumps to H, make sure that H has an la25
stub. */
- if (hti->info->relocatable)
+ if (bfd_link_relocatable (hti->info))
{
if (!PIC_OBJECT_P (hti->output_bfd))
h->root.other = ELF_ST_SET_MIPS_PIC (h->root.other);
return r_type == R_MIPS_GOT_PAGE || r_type == R_MICROMIPS_GOT_PAGE;
}
-static inline bfd_boolean
-got_ofst_reloc_p (unsigned int r_type)
-{
- return r_type == R_MIPS_GOT_OFST || r_type == R_MICROMIPS_GOT_OFST;
-}
-
-static inline bfd_boolean
-got_hi16_reloc_p (unsigned int r_type)
-{
- return r_type == R_MIPS_GOT_HI16 || r_type == R_MICROMIPS_GOT_HI16;
-}
-
static inline bfd_boolean
got_lo16_reloc_p (unsigned int r_type)
{
{
return (r_type == R_MIPS_HI16
|| r_type == R_MIPS16_HI16
- || r_type == R_MICROMIPS_HI16);
+ || r_type == R_MICROMIPS_HI16
+ || r_type == R_MIPS_PCHI16);
}
static inline bfd_boolean
{
return (r_type == R_MIPS_LO16
|| r_type == R_MIPS16_LO16
- || r_type == R_MICROMIPS_LO16);
+ || r_type == R_MICROMIPS_LO16
+ || r_type == R_MIPS_PCLO16);
}
static inline bfd_boolean
|| r_type == R_MICROMIPS_26_S1);
}
+static inline bfd_boolean
+aligned_pcrel_reloc_p (int r_type)
+{
+ return (r_type == R_MIPS_PC18_S3
+ || r_type == R_MIPS_PC19_S2);
+}
+
static inline bfd_boolean
micromips_branch_reloc_p (int r_type)
{
H_PUT_16 (abfd, in->section, ex->section);
H_PUT_32 (abfd, in->info, ex->info);
}
+
+/* Swap in an abiflags structure. */
+
+void
+bfd_mips_elf_swap_abiflags_v0_in (bfd *abfd,
+ const Elf_External_ABIFlags_v0 *ex,
+ Elf_Internal_ABIFlags_v0 *in)
+{
+ in->version = H_GET_16 (abfd, ex->version);
+ in->isa_level = H_GET_8 (abfd, ex->isa_level);
+ in->isa_rev = H_GET_8 (abfd, ex->isa_rev);
+ in->gpr_size = H_GET_8 (abfd, ex->gpr_size);
+ in->cpr1_size = H_GET_8 (abfd, ex->cpr1_size);
+ in->cpr2_size = H_GET_8 (abfd, ex->cpr2_size);
+ in->fp_abi = H_GET_8 (abfd, ex->fp_abi);
+ in->isa_ext = H_GET_32 (abfd, ex->isa_ext);
+ in->ases = H_GET_32 (abfd, ex->ases);
+ in->flags1 = H_GET_32 (abfd, ex->flags1);
+ in->flags2 = H_GET_32 (abfd, ex->flags2);
+}
+
+/* Swap out an abiflags structure. */
+
+void
+bfd_mips_elf_swap_abiflags_v0_out (bfd *abfd,
+ const Elf_Internal_ABIFlags_v0 *in,
+ Elf_External_ABIFlags_v0 *ex)
+{
+ H_PUT_16 (abfd, in->version, ex->version);
+ H_PUT_8 (abfd, in->isa_level, ex->isa_level);
+ H_PUT_8 (abfd, in->isa_rev, ex->isa_rev);
+ H_PUT_8 (abfd, in->gpr_size, ex->gpr_size);
+ H_PUT_8 (abfd, in->cpr1_size, ex->cpr1_size);
+ H_PUT_8 (abfd, in->cpr2_size, ex->cpr2_size);
+ H_PUT_8 (abfd, in->fp_abi, ex->fp_abi);
+ H_PUT_32 (abfd, in->isa_ext, ex->isa_ext);
+ H_PUT_32 (abfd, in->ases, ex->ases);
+ H_PUT_32 (abfd, in->flags1, ex->flags1);
+ H_PUT_32 (abfd, in->flags2, ex->flags2);
+}
\f
/* This function is called via qsort() to sort the dynamic relocation
entries by increasing r_symndx value. */
bfd_boolean need_relocs = FALSE;
bfd_boolean dyn = elf_hash_table (info)->dynamic_sections_created;
- if (h && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
- && (!info->shared || !SYMBOL_REFERENCES_LOCAL (info, h)))
+ if (h && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h)
+ && (!bfd_link_pic (info) || !SYMBOL_REFERENCES_LOCAL (info, h)))
indx = h->dynindx;
- if ((info->shared || indx != 0)
+ if ((bfd_link_pic (info) || indx != 0)
&& (h == NULL
|| ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
|| h->root.type != bfd_link_hash_undefweak))
return 1;
case GOT_TLS_LDM:
- return info->shared ? 1 : 0;
+ return bfd_link_pic (info) ? 1 : 0;
default:
return 0;
{
bfd_boolean dyn = elf_hash_table (info)->dynamic_sections_created;
- if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, &h->root)
- && (!info->shared || !SYMBOL_REFERENCES_LOCAL (info, &h->root)))
+ if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info),
+ &h->root)
+ && (!bfd_link_pic (info)
+ || !SYMBOL_REFERENCES_LOCAL (info, &h->root)))
indx = h->root.dynindx;
}
if (entry->tls_initialized)
return;
- if ((info->shared || indx != 0)
+ if ((bfd_link_pic (info) || indx != 0)
&& (h == NULL
|| ELF_ST_VISIBILITY (h->root.other) == STV_DEFAULT
|| h->root.type != bfd_link_hash_undefweak))
sgot->contents + got_offset
+ MIPS_ELF_GOT_SIZE (abfd));
- if (!info->shared)
+ if (!bfd_link_pic (info))
MIPS_ELF_PUT_WORD (abfd, 1,
sgot->contents + got_offset);
else
if (entry)
return entry;
- if (g->assigned_gotno >= g->local_gotno)
+ if (g->assigned_low_gotno > g->assigned_high_gotno)
{
/* We didn't allocate enough space in the GOT. */
(*_bfd_error_handler)
if (!entry)
return NULL;
- lookup.gotidx = MIPS_ELF_GOT_SIZE (abfd) * g->assigned_gotno++;
+ if (got16_reloc_p (r_type)
+ || call16_reloc_p (r_type)
+ || got_page_reloc_p (r_type)
+ || got_disp_reloc_p (r_type))
+ lookup.gotidx = MIPS_ELF_GOT_SIZE (abfd) * g->assigned_low_gotno++;
+ else
+ lookup.gotidx = MIPS_ELF_GOT_SIZE (abfd) * g->assigned_high_gotno--;
+
*entry = lookup;
*loc = entry;
bfd_size_type count;
count = 0;
- if (info->shared || elf_hash_table (info)->is_relocatable_executable)
+ if (bfd_link_pic (info)
+ || elf_hash_table (info)->is_relocatable_executable)
{
asection *p;
const struct elf_backend_data *bed;
/* Record that G requires a page entry that can reach SEC + ADDEND. */
static bfd_boolean
-mips_elf_record_got_page_entry (struct mips_got_info *g,
+mips_elf_record_got_page_entry (struct mips_elf_traverse_got_arg *arg,
asection *sec, bfd_signed_vma addend)
{
+ struct mips_got_info *g = arg->g;
struct mips_got_page_entry lookup, *entry;
struct mips_got_page_range **range_ptr, *range;
bfd_vma old_pages, new_pages;
entry = (struct mips_got_page_entry *) *loc;
if (!entry)
{
- entry = bfd_zalloc (sec->owner, sizeof (*entry));
+ entry = bfd_zalloc (arg->info->output_bfd, sizeof (*entry));
if (!entry)
return FALSE;
range = *range_ptr;
if (!range || addend < range->min_addend - 0xffff)
{
- range = bfd_zalloc (sec->owner, sizeof (*range));
+ range = bfd_zalloc (arg->info->output_bfd, sizeof (*range));
if (!range)
return FALSE;
else
addend = isym->st_value + ref->addend;
}
- if (!mips_elf_record_got_page_entry (arg->g, sec, addend))
+ if (!mips_elf_record_got_page_entry (arg, sec, addend))
{
arg->g = NULL;
return 0;
/* If this is an executable that must provide a definition of the symbol,
either though PLTs or copy relocations, then that address should go in
the local rather than global GOT. */
- if (info->executable && h->has_static_relocs)
+ if (bfd_link_executable (info) && h->has_static_relocs)
return TRUE;
return FALSE;
&& entry->symndx == -1
&& entry->d.h->global_got_area != GGA_NONE)
{
- if (!mips_elf_set_gotidx (entryp, arg->value * arg->g->assigned_gotno))
+ if (!mips_elf_set_gotidx (entryp, arg->value * arg->g->assigned_low_gotno))
{
arg->g = NULL;
return 0;
}
- arg->g->assigned_gotno += 1;
+ arg->g->assigned_low_gotno += 1;
- if (arg->info->shared
+ if (bfd_link_pic (arg->info)
|| (elf_hash_table (arg->info)->dynamic_sections_created
&& entry->d.h->root.def_dynamic
&& !entry->d.h->root.def_regular))
/* Try to merge the GOTs of input bfds together, as long as they
don't seem to exceed the maximum GOT size, choosing one of them
to be the primary GOT. */
- for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link_next)
+ for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link.next)
{
gg = mips_elf_bfd_got (ibfd, FALSE);
if (gg && !mips_elf_merge_got (ibfd, gg, &got_per_bfd_arg))
htab_traverse (g->got_entries, mips_elf_set_global_got_area, &tga);
/* Now go through the GOTs assigning them offset ranges.
- [assigned_gotno, local_gotno[ will be set to the range of local
+ [assigned_low_gotno, local_gotno[ will be set to the range of local
entries in each GOT. We can then compute the end of a GOT by
adding local_gotno to global_gotno. We reverse the list and make
it circular since then we'll be able to quickly compute the
struct mips_got_info *gn;
assign += htab->reserved_gotno;
- g->assigned_gotno = assign;
+ g->assigned_low_gotno = assign;
g->local_gotno += assign;
g->local_gotno += (pages < g->page_gotno ? pages : g->page_gotno);
+ g->assigned_high_gotno = g->local_gotno - 1;
assign = g->local_gotno + g->global_gotno + g->tls_gotno;
/* Take g out of the direct list, and push it onto the reversed
/* Assign offsets to global GOT entries and count how many
relocations they need. */
- save_assign = g->assigned_gotno;
- g->assigned_gotno = g->local_gotno;
+ save_assign = g->assigned_low_gotno;
+ g->assigned_low_gotno = g->local_gotno;
tga.info = info;
tga.value = MIPS_ELF_GOT_SIZE (abfd);
tga.g = g;
htab_traverse (g->got_entries, mips_elf_set_global_gotidx, &tga);
if (!tga.g)
return FALSE;
- BFD_ASSERT (g->assigned_gotno == g->local_gotno + g->global_gotno);
- g->assigned_gotno = save_assign;
+ BFD_ASSERT (g->assigned_low_gotno == g->local_gotno + g->global_gotno);
+ g->assigned_low_gotno = save_assign;
- if (info->shared)
+ if (bfd_link_pic (info))
{
- g->relocs += g->local_gotno - g->assigned_gotno;
- BFD_ASSERT (g->assigned_gotno == g->next->local_gotno
+ g->relocs += g->local_gotno - g->assigned_low_gotno;
+ BFD_ASSERT (g->assigned_low_gotno == g->next->local_gotno
+ g->next->global_gotno
+ g->next->tls_gotno
+ htab->reserved_gotno);
h->other = (h->other & ~ELF_ST_VISIBILITY (-1)) | STV_HIDDEN;
elf_hash_table (info)->hgot = h;
- if (info->shared
+ if (bfd_link_pic (info)
&& ! bfd_elf_link_record_dynamic_symbol (info, h))
return FALSE;
is_gott_symbol (struct bfd_link_info *info, struct elf_link_hash_entry *h)
{
return (mips_elf_hash_table (info)->is_vxworks
- && info->shared
+ && bfd_link_pic (info)
&& (strcmp (h->root.root.string, "__GOTT_BASE__") == 0
|| strcmp (h->root.root.string, "__GOTT_INDEX__") == 0));
}
{
case R_MIPS_26:
case R_MIPS_PC16:
+ case R_MIPS_PC21_S2:
+ case R_MIPS_PC26_S2:
case R_MICROMIPS_26_S1:
case R_MICROMIPS_PC7_S1:
case R_MICROMIPS_PC10_S1:
Otherwise, we should define the symbol with a value of 0.
FIXME: It should probably get into the symbol table
somehow as well. */
- BFD_ASSERT (! info->shared);
+ BFD_ASSERT (! bfd_link_pic (info));
BFD_ASSERT (bfd_get_section_by_name (abfd, ".dynamic") == NULL);
symbol = 0;
}
(c) the section allows direct references to MIPS16 functions. */
if (r_type != R_MIPS16_26
- && !info->relocatable
+ && !bfd_link_relocatable (info)
&& ((h != NULL
&& h->fn_stub != NULL
&& (r_type != R_MIPS16_CALL16 || h->need_fn_stub))
to a standard MIPS function, we need to redirect the call to the stub.
Note that we specifically exclude R_MIPS16_CALL16 from this behavior;
indirect calls should use an indirect stub instead. */
- else if (r_type == R_MIPS16_26 && !info->relocatable
+ else if (r_type == R_MIPS16_26 && !bfd_link_relocatable (info)
&& ((h != NULL && (h->call_stub != NULL || h->call_fp_stub != NULL))
|| (local_p
&& mips_elf_tdata (input_bfd)->local_call_stubs != NULL
to point to the standard PLT entry, so redirect to the compressed
one. */
else if ((r_type == R_MIPS16_26 || r_type == R_MICROMIPS_26_S1)
- && !info->relocatable
+ && !bfd_link_relocatable (info)
&& h != NULL
&& h->use_plt_entry
&& h->root.plt.plist->comp_offset != MINUS_ONE
because the assembly writer may have "known" that any definition of the
symbol would be 16-bit code, and that direct jumps were therefore
acceptable. */
- *cross_mode_jump_p = (!info->relocatable
+ *cross_mode_jump_p = (!bfd_link_relocatable (info)
&& !(h && h->root.root.type == bfd_link_hash_undefweak)
&& ((r_type == R_MIPS16_26 && !target_is_16_bit_code_p)
|| (r_type == R_MICROMIPS_26_S1
return bfd_reloc_continue;
case R_MIPS_16:
- value = symbol + _bfd_mips_elf_sign_extend (addend, 16);
+ if (howto->partial_inplace)
+ addend = _bfd_mips_elf_sign_extend (addend, 16);
+ value = symbol + addend;
overflowed_p = mips_elf_overflow_p (value, 16);
break;
case R_MIPS_32:
case R_MIPS_REL32:
case R_MIPS_64:
- if ((info->shared
+ if ((bfd_link_pic (info)
|| (htab->root.dynamic_sections_created
&& h != NULL
&& h->root.def_dynamic
if (was_local_p)
value = addend | ((p + 4) & (0xfc000000 << shift));
- else
+ else if (howto->partial_inplace)
value = _bfd_mips_elf_sign_extend (addend, 26 + shift);
+ else
+ value = addend;
value = (value + symbol) >> shift;
if (!was_local_p && h->root.root.type != bfd_link_hash_undefweak)
overflowed_p = (value >> 26) != ((p + 4) >> (26 + shift));
to them before. */
if (was_local_p)
value += gp0;
- overflowed_p = mips_elf_overflow_p (value, 16);
+ if (was_local_p || h->root.root.type != bfd_link_hash_undefweak)
+ overflowed_p = mips_elf_overflow_p (value, 16);
break;
case R_MIPS16_GOT16:
case R_MIPS_PC16:
case R_MIPS_GNU_REL16_S2:
- value = symbol + _bfd_mips_elf_sign_extend (addend, 18) - p;
- overflowed_p = mips_elf_overflow_p (value, 18);
+ if (howto->partial_inplace)
+ addend = _bfd_mips_elf_sign_extend (addend, 18);
+
+ if ((symbol + addend) & 3)
+ return bfd_reloc_outofrange;
+
+ value = symbol + addend - p;
+ if (was_local_p || h->root.root.type != bfd_link_hash_undefweak)
+ overflowed_p = mips_elf_overflow_p (value, 18);
+ value >>= howto->rightshift;
+ value &= howto->dst_mask;
+ break;
+
+ case R_MIPS_PC21_S2:
+ if (howto->partial_inplace)
+ addend = _bfd_mips_elf_sign_extend (addend, 23);
+
+ if ((symbol + addend) & 3)
+ return bfd_reloc_outofrange;
+
+ value = symbol + addend - p;
+ if (was_local_p || h->root.root.type != bfd_link_hash_undefweak)
+ overflowed_p = mips_elf_overflow_p (value, 23);
+ value >>= howto->rightshift;
+ value &= howto->dst_mask;
+ break;
+
+ case R_MIPS_PC26_S2:
+ if (howto->partial_inplace)
+ addend = _bfd_mips_elf_sign_extend (addend, 28);
+
+ if ((symbol + addend) & 3)
+ return bfd_reloc_outofrange;
+
+ value = symbol + addend - p;
+ if (was_local_p || h->root.root.type != bfd_link_hash_undefweak)
+ overflowed_p = mips_elf_overflow_p (value, 28);
+ value >>= howto->rightshift;
+ value &= howto->dst_mask;
+ break;
+
+ case R_MIPS_PC18_S3:
+ if (howto->partial_inplace)
+ addend = _bfd_mips_elf_sign_extend (addend, 21);
+
+ if ((symbol + addend) & 7)
+ return bfd_reloc_outofrange;
+
+ value = symbol + addend - ((p | 7) ^ 7);
+ if (was_local_p || h->root.root.type != bfd_link_hash_undefweak)
+ overflowed_p = mips_elf_overflow_p (value, 21);
+ value >>= howto->rightshift;
+ value &= howto->dst_mask;
+ break;
+
+ case R_MIPS_PC19_S2:
+ if (howto->partial_inplace)
+ addend = _bfd_mips_elf_sign_extend (addend, 21);
+
+ if ((symbol + addend) & 3)
+ return bfd_reloc_outofrange;
+
+ value = symbol + addend - p;
+ if (was_local_p || h->root.root.type != bfd_link_hash_undefweak)
+ overflowed_p = mips_elf_overflow_p (value, 21);
value >>= howto->rightshift;
value &= howto->dst_mask;
break;
+ case R_MIPS_PCHI16:
+ value = mips_elf_high (symbol + addend - p);
+ if (was_local_p || h->root.root.type != bfd_link_hash_undefweak)
+ overflowed_p = mips_elf_overflow_p (value, 16);
+ value &= howto->dst_mask;
+ break;
+
+ case R_MIPS_PCLO16:
+ if (howto->partial_inplace)
+ addend = _bfd_mips_elf_sign_extend (addend, 16);
+ value = symbol + addend - p;
+ value &= howto->dst_mask;
+ break;
+
case R_MICROMIPS_PC7_S1:
- value = symbol + _bfd_mips_elf_sign_extend (addend, 8) - p;
- overflowed_p = mips_elf_overflow_p (value, 8);
+ if (howto->partial_inplace)
+ addend = _bfd_mips_elf_sign_extend (addend, 8);
+ value = symbol + addend - p;
+ if (was_local_p || h->root.root.type != bfd_link_hash_undefweak)
+ overflowed_p = mips_elf_overflow_p (value, 8);
value >>= howto->rightshift;
value &= howto->dst_mask;
break;
case R_MICROMIPS_PC10_S1:
- value = symbol + _bfd_mips_elf_sign_extend (addend, 11) - p;
- overflowed_p = mips_elf_overflow_p (value, 11);
+ if (howto->partial_inplace)
+ addend = _bfd_mips_elf_sign_extend (addend, 11);
+ value = symbol + addend - p;
+ if (was_local_p || h->root.root.type != bfd_link_hash_undefweak)
+ overflowed_p = mips_elf_overflow_p (value, 11);
value >>= howto->rightshift;
value &= howto->dst_mask;
break;
case R_MICROMIPS_PC16_S1:
- value = symbol + _bfd_mips_elf_sign_extend (addend, 17) - p;
- overflowed_p = mips_elf_overflow_p (value, 17);
+ if (howto->partial_inplace)
+ addend = _bfd_mips_elf_sign_extend (addend, 17);
+ value = symbol + addend - p;
+ if (was_local_p || h->root.root.type != bfd_link_hash_undefweak)
+ overflowed_p = mips_elf_overflow_p (value, 17);
value >>= howto->rightshift;
value &= howto->dst_mask;
break;
case R_MICROMIPS_PC23_S2:
- value = symbol + _bfd_mips_elf_sign_extend (addend, 25) - ((p | 3) ^ 3);
- overflowed_p = mips_elf_overflow_p (value, 25);
+ if (howto->partial_inplace)
+ addend = _bfd_mips_elf_sign_extend (addend, 25);
+ value = symbol + addend - ((p | 3) ^ 3);
+ if (was_local_p || h->root.root.type != bfd_link_hash_undefweak)
+ overflowed_p = mips_elf_overflow_p (value, 25);
value >>= howto->rightshift;
value &= howto->dst_mask;
break;
const Elf_Internal_Rela *relocation,
bfd *input_bfd, bfd_byte *contents)
{
- bfd_vma x;
+ bfd_vma x = 0;
bfd_byte *location = contents + relocation->r_offset;
+ unsigned int size = bfd_get_reloc_size (howto);
/* Obtain the bytes. */
- x = bfd_get ((8 * bfd_get_reloc_size (howto)), input_bfd, location);
+ if (size != 0)
+ x = bfd_get (8 * size, input_bfd, location);
return x;
}
bfd_vma x;
bfd_byte *location;
int r_type = ELF_R_TYPE (input_bfd, relocation->r_info);
+ unsigned int size;
/* Figure out where the relocation is occurring. */
location = contents + relocation->r_offset;
/* Try converting JAL to BAL and J(AL)R to B(AL), if the target is in
range. */
- if (!info->relocatable
+ if (!bfd_link_relocatable (info)
&& !cross_mode_jump_p
&& ((JAL_TO_BAL_P (input_bfd)
&& r_type == R_MIPS_26
}
/* Put the value into the output. */
- bfd_put (8 * bfd_get_reloc_size (howto), input_bfd, x, location);
+ size = bfd_get_reloc_size (howto);
+ if (size != 0)
+ bfd_put (8 * size, input_bfd, x, location);
- _bfd_mips_elf_reloc_shuffle (input_bfd, r_type, !info->relocatable,
+ _bfd_mips_elf_reloc_shuffle (input_bfd, r_type, !bfd_link_relocatable (info),
location);
return TRUE;
case E_MIPS_MACH_LS3A:
return bfd_mach_mips_loongson_3a;
+ case E_MIPS_MACH_OCTEON3:
+ return bfd_mach_mips_octeon3;
+
case E_MIPS_MACH_OCTEON2:
return bfd_mach_mips_octeon2;
case E_MIPS_ARCH_64R2:
return bfd_mach_mipsisa64r2;
+
+ case E_MIPS_ARCH_32R6:
+ return bfd_mach_mipsisa32r6;
+
+ case E_MIPS_ARCH_64R6:
+ return bfd_mach_mipsisa64r6;
}
}
if (strcmp (name, ".sdata") == 0
|| strcmp (name, ".lit8") == 0
|| strcmp (name, ".lit4") == 0)
- {
- hdr->sh_flags |= SHF_ALLOC | SHF_WRITE | SHF_MIPS_GPREL;
- hdr->sh_type = SHT_PROGBITS;
- }
+ hdr->sh_flags |= SHF_ALLOC | SHF_WRITE | SHF_MIPS_GPREL;
else if (strcmp (name, ".srdata") == 0)
- {
- hdr->sh_flags |= SHF_ALLOC | SHF_MIPS_GPREL;
- hdr->sh_type = SHT_PROGBITS;
- }
+ hdr->sh_flags |= SHF_ALLOC | SHF_MIPS_GPREL;
else if (strcmp (name, ".compact_rel") == 0)
- {
- hdr->sh_flags = 0;
- hdr->sh_type = SHT_PROGBITS;
- }
+ hdr->sh_flags = 0;
else if (strcmp (name, ".rtproc") == 0)
{
if (hdr->sh_addralign != 0 && hdr->sh_entsize == 0)
if (!MIPS_ELF_OPTIONS_SECTION_NAME_P (name))
return FALSE;
break;
+ case SHT_MIPS_ABIFLAGS:
+ if (!MIPS_ELF_ABIFLAGS_SECTION_NAME_P (name))
+ return FALSE;
+ flags = (SEC_LINK_ONCE | SEC_LINK_DUPLICATES_SAME_SIZE);
+ break;
case SHT_MIPS_DWARF:
if (! CONST_STRNEQ (name, ".debug_")
&& ! CONST_STRNEQ (name, ".zdebug_"))
return FALSE;
}
+ if (hdr->sh_type == SHT_MIPS_ABIFLAGS)
+ {
+ Elf_External_ABIFlags_v0 ext;
+
+ if (! bfd_get_section_contents (abfd, hdr->bfd_section,
+ &ext, 0, sizeof ext))
+ return FALSE;
+ bfd_mips_elf_swap_abiflags_v0_in (abfd, &ext,
+ &mips_elf_tdata (abfd)->abiflags);
+ if (mips_elf_tdata (abfd)->abiflags.version != 0)
+ return FALSE;
+ mips_elf_tdata (abfd)->abiflags_valid = TRUE;
+ }
+
/* FIXME: We should record sh_info for a .gptab section. */
/* For a .reginfo section, set the gp value in the tdata information
hdr->sh_entsize = 1;
hdr->sh_flags |= SHF_MIPS_NOSTRIP;
}
+ else if (CONST_STRNEQ (name, ".MIPS.abiflags"))
+ {
+ hdr->sh_type = SHT_MIPS_ABIFLAGS;
+ hdr->sh_entsize = sizeof (Elf_External_ABIFlags_v0);
+ }
else if (CONST_STRNEQ (name, ".debug_")
|| CONST_STRNEQ (name, ".zdebug_"))
{
elf_text_symbol->section = elf_text_section;
}
/* This code used to do *secp = bfd_und_section_ptr if
- info->shared. I don't know why, and that doesn't make sense,
+ bfd_link_pic (info). I don't know why, and that doesn't make sense,
so I took it out. */
*secp = mips_elf_tdata (abfd)->elf_text_section;
break;
elf_data_symbol->section = elf_data_section;
}
/* This code used to do *secp = bfd_und_section_ptr if
- info->shared. I don't know why, and that doesn't make sense,
+ bfd_link_pic (info). I don't know why, and that doesn't make sense,
so I took it out. */
*secp = mips_elf_tdata (abfd)->elf_data_section;
break;
}
if (SGI_COMPAT (abfd)
- && ! info->shared
+ && ! bfd_link_pic (info)
&& info->output_bfd->xvec == abfd->xvec
&& strcmp (*namep, "__rld_obj_head") == 0)
{
htab->sstubs = s;
if (!mips_elf_hash_table (info)->use_rld_obj_head
- && !info->shared
+ && bfd_link_executable (info)
&& bfd_get_linker_section (abfd, ".rld_map") == NULL)
{
s = bfd_make_section_anyway_with_flags (abfd, ".rld_map",
(void) bfd_set_section_alignment (abfd, s, MIPS_ELF_LOG_FILE_ALIGN (abfd));
}
- if (!info->shared)
+ if (bfd_link_executable (info))
{
const char *name;
else
htab->srelplt = bfd_get_linker_section (abfd, ".rel.plt");
if (!htab->sdynbss
- || (htab->is_vxworks && !htab->srelbss && !info->shared)
+ || (htab->is_vxworks && !htab->srelbss && !bfd_link_pic (info))
|| !htab->srelplt
|| !htab->splt)
abort ();
lo16_type = R_MIPS16_LO16;
else if (micromips_reloc_p (r_type))
lo16_type = R_MICROMIPS_LO16;
+ else if (r_type == R_MIPS_PCHI16)
+ lo16_type = R_MIPS_PCLO16;
else
lo16_type = R_MIPS_LO16;
bfd_vma addend;
reloc_howto_type *howto;
- if (info->relocatable)
+ if (bfd_link_relocatable (info))
return TRUE;
htab = mips_elf_hash_table (info);
elf_hash_table (info)->dynobj = dynobj = abfd;
if (!mips_elf_create_got_section (dynobj, info))
return FALSE;
- if (htab->is_vxworks && !info->shared)
+ if (htab->is_vxworks && !bfd_link_pic (info))
{
(*_bfd_error_handler)
(_("%B: GOT reloc at 0x%lx not expected in executables"),
one or using copy relocations or PLT entries. It is
usually better to do the former, unless the relocation is
against a read-only section. */
- if ((info->shared
+ if ((bfd_link_pic (info)
|| (h != NULL
&& !htab->is_vxworks
&& strcmp (h->root.root.string, "__gnu_local_gp") != 0
case R_MIPS_26:
case R_MIPS_PC16:
+ case R_MIPS_PC21_S2:
+ case R_MIPS_PC26_S2:
case R_MIPS16_26:
case R_MICROMIPS_26_S1:
case R_MICROMIPS_PC7_S1:
/* This symbol is definitely not overridable. */
if (hmips->root.def_regular
- && ! (info->shared && ! info->symbolic
+ && ! (bfd_link_pic (info) && ! info->symbolic
&& ! hmips->root.forced_local))
h = NULL;
}
case R_MIPS_TLS_GOTTPREL:
case R_MIPS16_TLS_GOTTPREL:
case R_MICROMIPS_TLS_GOTTPREL:
- if (info->shared)
+ if (bfd_link_pic (info))
info->flags |= DF_STATIC_TLS;
/* Fall through */
if (sreloc == NULL)
return FALSE;
}
- if (info->shared && h == NULL)
+ if (bfd_link_pic (info) && h == NULL)
{
/* When creating a shared object, we must copy these
reloc types into the output file as R_MIPS_REL32
not PIC, but we can create dynamic relocations and the result
will be fine. Also do not refuse R_MIPS_LO16, which can be
combined with R_MIPS_GOT16. */
- if (info->shared)
+ if (bfd_link_pic (info))
{
switch (r_type)
{
/* We are not currently changing any sizes, so only one pass. */
*again = FALSE;
- if (link_info->relocatable)
+ if (bfd_link_relocatable (link_info))
return TRUE;
internal_relocs = _bfd_elf_link_read_relocs (abfd, sec, NULL, NULL,
if (! ((h->root.root.type == bfd_link_hash_defined
|| h->root.root.type == bfd_link_hash_defweak)
&& h->root.root.u.def.section)
- || (link_info->shared && ! link_info->symbolic
+ || (bfd_link_pic (link_info) && ! link_info->symbolic
&& !h->root.forced_local))
continue;
/* VxWorks executables are handled elsewhere; we only need to
allocate relocations in shared objects. */
- if (htab->is_vxworks && !info->shared)
+ if (htab->is_vxworks && !bfd_link_pic (info))
return TRUE;
/* Ignore indirect symbols. All relocations against such symbols
/* If this symbol is defined in a dynamic object, or we are creating
a shared library, we will need to copy any R_MIPS_32 or
R_MIPS_REL32 relocs against it into the output file. */
- if (! info->relocatable
+ if (! bfd_link_relocatable (info)
&& hmips->possibly_dynamic_relocs != 0
&& (h->root.type == bfd_link_hash_defweak
|| (!h->def_regular && !ELF_COMMON_DEF_P (h))
- || info->shared))
+ || bfd_link_pic (info)))
{
bfd_boolean do_copy = TRUE;
/* On VxWorks, also allocate room for the header's
.rela.plt.unloaded entries. */
- if (htab->is_vxworks && !info->shared)
+ if (htab->is_vxworks && !bfd_link_pic (info))
htab->srelplt2->size += 2 * sizeof (Elf32_External_Rela);
/* Now work out the sizes of individual PLT entries. */
- if (htab->is_vxworks && info->shared)
+ if (htab->is_vxworks && bfd_link_pic (info))
htab->plt_mips_entry_size
= 4 * ARRAY_SIZE (mips_vxworks_shared_plt_entry);
else if (htab->is_vxworks)
/* If the output file has no definition of the symbol, set the
symbol's value to the address of the stub. */
- if (!info->shared && !h->def_regular)
+ if (!bfd_link_pic (info) && !h->def_regular)
hmips->use_plt_entry = TRUE;
/* Make room for the R_MIPS_JUMP_SLOT relocation. */
: MIPS_ELF_REL_SIZE (dynobj));
/* Make room for the .rela.plt.unloaded relocations. */
- if (htab->is_vxworks && !info->shared)
+ if (htab->is_vxworks && !bfd_link_pic (info))
htab->srelplt2->size += 3 * sizeof (Elf32_External_Rela);
/* All relocations against this symbol that could have been made
/* We're now relying on copy relocations. Complain if we have
some that we can't convert. */
- if (!htab->use_plts_and_copy_relocs || info->shared)
+ if (!htab->use_plts_and_copy_relocs || bfd_link_pic (info))
{
(*_bfd_error_handler) (_("non-dynamic relocations refer to "
"dynamic symbol %s"),
dynamic will now refer to the local copy instead. */
hmips->possibly_dynamic_relocs = 0;
- return _bfd_elf_adjust_dynamic_copy (h, htab->sdynbss);
+ return _bfd_elf_adjust_dynamic_copy (info, h, htab->sdynbss);
}
\f
/* This function is called after all the input files have been read,
_bfd_mips_elf_always_size_sections (bfd *output_bfd,
struct bfd_link_info *info)
{
- asection *ri;
+ asection *sect;
struct mips_elf_link_hash_table *htab;
struct mips_htab_traverse_info hti;
BFD_ASSERT (htab != NULL);
/* The .reginfo section has a fixed size. */
- ri = bfd_get_section_by_name (output_bfd, ".reginfo");
- if (ri != NULL)
- bfd_set_section_size (output_bfd, ri, sizeof (Elf32_External_RegInfo));
+ sect = bfd_get_section_by_name (output_bfd, ".reginfo");
+ if (sect != NULL)
+ bfd_set_section_size (output_bfd, sect, sizeof (Elf32_External_RegInfo));
+
+ /* The .MIPS.abiflags section has a fixed size. */
+ sect = bfd_get_section_by_name (output_bfd, ".MIPS.abiflags");
+ if (sect != NULL)
+ bfd_set_section_size (output_bfd, sect, sizeof (Elf_External_ABIFlags_v0));
hti.info = info;
hti.output_bfd = output_bfd;
/* Allocate room for the reserved entries. VxWorks always reserves
3 entries; other objects only reserve 2 entries. */
- BFD_ASSERT (g->assigned_gotno == 0);
+ BFD_ASSERT (g->assigned_low_gotno == 0);
if (htab->is_vxworks)
htab->reserved_gotno = 3;
else
htab->reserved_gotno = 2;
g->local_gotno += htab->reserved_gotno;
- g->assigned_gotno = htab->reserved_gotno;
+ g->assigned_low_gotno = htab->reserved_gotno;
/* Decide which symbols need to go in the global part of the GOT and
count the number of reloc-only GOT symbols. */
/* Calculate the total loadable size of the output. That
will give us the maximum number of GOT_PAGE entries
required. */
- for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link_next)
+ for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link.next)
{
asection *subsection;
page_gotno = g->page_gotno;
g->local_gotno += page_gotno;
+ g->assigned_high_gotno = g->local_gotno - 1;
s->size += g->local_gotno * MIPS_ELF_GOT_SIZE (output_bfd);
s->size += g->global_gotno * MIPS_ELF_GOT_SIZE (output_bfd);
{
/* Record that all bfds use G. This also has the effect of freeing
the per-bfd GOTs, which we no longer need. */
- for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link_next)
+ for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link.next)
if (mips_elf_bfd_got (ibfd, FALSE))
mips_elf_replace_bfd_got (ibfd, g);
mips_elf_replace_bfd_got (output_bfd, g);
== g->global_gotno + g->local_gotno + g->tls_gotno);
/* Each VxWorks GOT entry needs an explicit relocation. */
- if (htab->is_vxworks && info->shared)
+ if (htab->is_vxworks && bfd_link_pic (info))
g->relocs += g->global_gotno + g->local_gotno - htab->reserved_gotno;
/* Allocate room for the TLS relocations. */
if (elf_hash_table (info)->dynamic_sections_created)
{
/* Set the contents of the .interp section to the interpreter. */
- if (info->executable)
+ if (bfd_link_executable (info) && !info->nointerp)
{
s = bfd_get_linker_section (dynobj, ".interp");
BFD_ASSERT (s != NULL);
BFD_ASSERT (htab->sgotplt->size == 0);
BFD_ASSERT (htab->splt->size == 0);
- if (htab->is_vxworks && info->shared)
+ if (htab->is_vxworks && bfd_link_pic (info))
size = 4 * ARRAY_SIZE (mips_vxworks_shared_plt0_entry);
else if (htab->is_vxworks)
size = 4 * ARRAY_SIZE (mips_vxworks_exec_plt0_entry);
info->combreloc = 0;
}
}
- else if (! info->shared
+ else if (bfd_link_executable (info)
&& ! mips_elf_hash_table (info)->use_rld_obj_head
&& CONST_STRNEQ (name, ".rld_map"))
{
DT_MIPS_RLD_MAP entry. This must come first because glibc
only fills in DT_MIPS_RLD_MAP (not DT_DEBUG) and some tools
may only look at the first one they see. */
- if (!info->shared
+ if (!bfd_link_pic (info)
&& !MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_RLD_MAP, 0))
return FALSE;
+ if (bfd_link_executable (info)
+ && !MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_RLD_MAP_REL, 0))
+ return FALSE;
+
/* The DT_DEBUG entry may be filled in by the dynamic linker and
used by the debugger. */
- if (info->executable
+ if (bfd_link_executable (info)
&& !SGI_COMPAT (output_bfd)
&& !MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_DEBUG, 0))
return FALSE;
sym = local_syms + r_symndx;
/* Adjust REL's addend to account for section merging. */
- if (!info->relocatable)
+ if (!bfd_link_relocatable (info))
{
sec = local_sections[r_symndx];
_bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
local_syms, local_sections, rel);
}
- if (info->relocatable)
+ if (bfd_link_relocatable (info))
{
if (r_type == R_MIPS_64 && ! NEWABI_P (output_bfd)
&& bfd_big_endian (input_bfd))
(info, msg, name, input_bfd, input_section, rel->r_offset);
return FALSE;
}
+ if (aligned_pcrel_reloc_p (howto->type))
+ {
+ msg = _("PC-relative load from unaligned address");
+ info->callbacks->warning
+ (info, msg, name, input_bfd, input_section, rel->r_offset);
+ return FALSE;
+ }
/* Fall through. */
default:
load = MIPS_ELF_LOAD_WORD (output_bfd);
/* Fill in the PLT entry itself. */
- plt_entry = mips_exec_plt_entry;
+
+ if (MIPSR6_P (output_bfd))
+ plt_entry = mipsr6_exec_plt_entry;
+ else
+ plt_entry = mips_exec_plt_entry;
bfd_put_32 (output_bfd, plt_entry[0] | got_address_high, loc);
bfd_put_32 (output_bfd, plt_entry[1] | got_address_low | load,
loc + 4);
if (htab->insn32)
{
bfd_put_micromips_32 (output_bfd,
- STUB_MOVE32_MICROMIPS (output_bfd),
- stub + idx);
+ STUB_MOVE32_MICROMIPS, stub + idx);
idx += 4;
}
else
idx = 0;
bfd_put_32 (output_bfd, STUB_LW (output_bfd), stub + idx);
idx += 4;
- bfd_put_32 (output_bfd, STUB_MOVE (output_bfd), stub + idx);
+ bfd_put_32 (output_bfd, STUB_MOVE, stub + idx);
idx += 4;
if (stub_size == stub_big_size)
{
{
offset = p->gotidx;
BFD_ASSERT (offset > 0 && offset < htab->sgot->size);
- if (info->shared
+ if (bfd_link_pic (info)
|| (elf_hash_table (info)->dynamic_sections_created
&& p->d.h != NULL
&& p->d.h->root.def_dynamic
/* Find out where the .plt entry should go. */
loc = htab->splt->contents + plt_offset;
- if (info->shared)
+ if (bfd_link_pic (info))
{
plt_entry = mips_vxworks_shared_plt_entry;
bfd_put_32 (output_bfd, plt_entry[0] | branch_offset, loc);
name = ".dynsym";
elemsize = MIPS_ELF_SYM_SIZE (output_bfd);
s = bfd_get_section_by_name (output_bfd, name);
- BFD_ASSERT (s != NULL);
- dyn.d_un.d_val = s->size / elemsize;
+ if (s != NULL)
+ dyn.d_un.d_val = s->size / elemsize;
+ else
+ dyn.d_un.d_val = 0;
break;
case DT_MIPS_HIPAGENO:
break;
}
s = h->root.u.def.section;
+
+ /* The MIPS_RLD_MAP tag stores the absolute address of the
+ debug pointer. */
dyn.d_un.d_ptr = (s->output_section->vma + s->output_offset
+ h->root.u.def.value);
}
break;
+ case DT_MIPS_RLD_MAP_REL:
+ {
+ struct elf_link_hash_entry *h;
+ bfd_vma dt_addr, rld_addr;
+ h = mips_elf_hash_table (info)->rld_symbol;
+ if (!h)
+ {
+ dyn_to_skip = MIPS_ELF_DYN_SIZE (dynobj);
+ swap_out_p = FALSE;
+ break;
+ }
+ s = h->root.u.def.section;
+
+ /* The MIPS_RLD_MAP_REL tag stores the offset to the debug
+ pointer, relative to the address of the tag. */
+ dt_addr = (sdyn->output_section->vma + sdyn->output_offset
+ + (b - sdyn->contents));
+ rld_addr = (s->output_section->vma + s->output_offset
+ + h->root.u.def.value);
+ dyn.d_un.d_ptr = rld_addr - dt_addr;
+ }
+ break;
+
case DT_MIPS_OPTIONS:
s = (bfd_get_section_by_name
(output_bfd, MIPS_ELF_OPTIONS_SECTION_NAME (output_bfd)));
sgot->contents
+ got_index++ * MIPS_ELF_GOT_SIZE (output_bfd));
- if (! info->shared)
+ if (! bfd_link_pic (info))
continue;
- while (got_index < g->assigned_gotno)
+ for (; got_index < g->local_gotno; got_index++)
{
+ if (got_index >= g->assigned_low_gotno
+ && got_index <= g->assigned_high_gotno)
+ continue;
+
rel[0].r_offset = rel[1].r_offset = rel[2].r_offset
- = got_index++ * MIPS_ELF_GOT_SIZE (output_bfd);
+ = got_index * MIPS_ELF_GOT_SIZE (output_bfd);
if (!(mips_elf_create_dynamic_relocation
(output_bfd, info, rel, NULL,
bfd_abs_section_ptr,
{
if (htab->is_vxworks)
{
- if (info->shared)
+ if (bfd_link_pic (info))
mips_vxworks_finish_shared_plt (output_bfd, info);
else
mips_vxworks_finish_exec_plt (output_bfd, info);
}
else
{
- BFD_ASSERT (!info->shared);
+ BFD_ASSERT (!bfd_link_pic (info));
if (!mips_finish_exec_plt (output_bfd, info))
return FALSE;
}
break;
case bfd_mach_mips_loongson_3a:
- val = E_MIPS_ARCH_64 | E_MIPS_MACH_LS3A;
+ val = E_MIPS_ARCH_64R2 | E_MIPS_MACH_LS3A;
break;
case bfd_mach_mips_octeon:
val = E_MIPS_ARCH_64R2 | E_MIPS_MACH_OCTEON;
break;
+ case bfd_mach_mips_octeon3:
+ val = E_MIPS_ARCH_64R2 | E_MIPS_MACH_OCTEON3;
+ break;
+
case bfd_mach_mips_xlr:
val = E_MIPS_ARCH_64 | E_MIPS_MACH_XLR;
break;
break;
case bfd_mach_mipsisa32r2:
+ case bfd_mach_mipsisa32r3:
+ case bfd_mach_mipsisa32r5:
val = E_MIPS_ARCH_32R2;
break;
case bfd_mach_mipsisa64r2:
+ case bfd_mach_mipsisa64r3:
+ case bfd_mach_mipsisa64r5:
val = E_MIPS_ARCH_64R2;
break;
+
+ case bfd_mach_mipsisa32r6:
+ val = E_MIPS_ARCH_32R6;
+ break;
+
+ case bfd_mach_mipsisa64r6:
+ val = E_MIPS_ARCH_64R6;
+ break;
}
elf_elfheader (abfd)->e_flags &= ~(EF_MIPS_ARCH | EF_MIPS_MACH);
elf_elfheader (abfd)->e_flags |= val;
}
+/* Whether to sort relocs output by ld -r or ld --emit-relocs, by r_offset.
+ Don't do so for code sections. We want to keep ordering of HI16/LO16
+ as is. On the other hand, elf-eh-frame.c processing requires .eh_frame
+ relocs to be sorted. */
+
+bfd_boolean
+_bfd_mips_elf_sort_relocs_p (asection *sec)
+{
+ return (sec->flags & SEC_CODE) == 0;
+}
+
+
/* The final processing done just before writing out a MIPS ELF object
file. This gets the MIPS architecture right based on the machine
number. This is used by both the 32-bit and the 64-bit ABI. */
if (s && (s->flags & SEC_LOAD))
++ret;
+ /* See if we need a PT_MIPS_ABIFLAGS segment. */
+ if (bfd_get_section_by_name (abfd, ".MIPS.abiflags"))
+ ++ret;
+
/* See if we need a PT_MIPS_OPTIONS segment. */
if (IRIX_COMPAT (abfd) == ict_irix6
&& bfd_get_section_by_name (abfd,
}
}
+ /* If there is a .MIPS.abiflags section, we need a PT_MIPS_ABIFLAGS
+ segment. */
+ s = bfd_get_section_by_name (abfd, ".MIPS.abiflags");
+ if (s != NULL && (s->flags & SEC_LOAD) != 0)
+ {
+ for (m = elf_seg_map (abfd); m != NULL; m = m->next)
+ if (m->p_type == PT_MIPS_ABIFLAGS)
+ break;
+ if (m == NULL)
+ {
+ amt = sizeof *m;
+ m = bfd_zalloc (abfd, amt);
+ if (m == NULL)
+ return FALSE;
+
+ m->p_type = PT_MIPS_ABIFLAGS;
+ m->count = 1;
+ m->sections[0] = s;
+
+ /* We want to put it after the PHDR and INTERP segments. */
+ pm = &elf_seg_map (abfd);
+ while (*pm != NULL
+ && ((*pm)->p_type == PT_PHDR
+ || (*pm)->p_type == PT_INTERP))
+ pm = &(*pm)->next;
+
+ m->next = *pm;
+ *pm = m;
+ }
+ }
+
/* For IRIX 6, we don't have .mdebug sections, nor does anything but
.dynamic end up in PT_DYNAMIC. However, we do have to insert a
PT_MIPS_OPTIONS segment immediately following the program header
if ((*pm)->p_type == PT_DYNAMIC)
break;
m = *pm;
- if (m != NULL && IRIX_COMPAT (abfd) == ict_none)
- {
- /* For a normal mips executable the permissions for the PT_DYNAMIC
- segment are read, write and execute. We do that here since
- the code in elf.c sets only the read permission. This matters
- sometimes for the dynamic linker. */
- if (bfd_get_section_by_name (abfd, ".dynamic") != NULL)
- {
- m->p_flags = PF_R | PF_W | PF_X;
- m->p_flags_valid = 1;
- }
- }
/* GNU/Linux binaries do not need the extended PT_DYNAMIC section.
glibc's dynamic linker has traditionally derived the number of
tags from the p_filesz field, and sometimes allocates stack
unsigned long r_symndx;
struct elf_link_hash_entry *h;
- if (info->relocatable)
+ if (bfd_link_relocatable (info))
return TRUE;
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
return TRUE;
}
+
+/* Prevent .MIPS.abiflags from being discarded with --gc-sections. */
+
+bfd_boolean
+_bfd_mips_elf_gc_mark_extra_sections (struct bfd_link_info *info,
+ elf_gc_mark_hook_fn gc_mark_hook)
+{
+ bfd *sub;
+
+ _bfd_elf_gc_mark_extra_sections (info, gc_mark_hook);
+
+ for (sub = info->input_bfds; sub != NULL; sub = sub->link.next)
+ {
+ asection *o;
+
+ if (! is_mips_elf (sub))
+ continue;
+
+ for (o = sub->sections; o != NULL; o = o->next)
+ if (!o->gc_mark
+ && MIPS_ELF_ABIFLAGS_SECTION_NAME_P
+ (bfd_get_section_name (sub, o)))
+ {
+ if (!_bfd_elf_gc_mark (info, o, gc_mark_hook))
+ return FALSE;
+ }
+ }
+
+ return TRUE;
+}
\f
/* Copy data from a MIPS ELF indirect symbol to its direct symbol,
hiding the old indirect symbol. Process additional relocation
if (skip != 0)
{
mips_elf_section_data (o)->u.tdata = tdata;
+ if (o->rawsize == 0)
+ o->rawsize = o->size;
o->size -= skip * PDR_SIZE;
ret = TRUE;
}
};
bfd_boolean
-_bfd_mips_elf_find_nearest_line (bfd *abfd, asection *section,
- asymbol **symbols, bfd_vma offset,
+_bfd_mips_elf_find_nearest_line (bfd *abfd, asymbol **symbols,
+ asection *section, bfd_vma offset,
const char **filename_ptr,
const char **functionname_ptr,
- unsigned int *line_ptr)
+ unsigned int *line_ptr,
+ unsigned int *discriminator_ptr)
{
asection *msec;
- if (_bfd_dwarf1_find_nearest_line (abfd, section, symbols, offset,
+ if (_bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, offset,
filename_ptr, functionname_ptr,
- line_ptr))
+ line_ptr, discriminator_ptr,
+ dwarf_debug_sections,
+ ABI_64_P (abfd) ? 8 : 0,
+ &elf_tdata (abfd)->dwarf2_find_line_info))
return TRUE;
- if (_bfd_dwarf2_find_nearest_line (abfd, dwarf_debug_sections,
- section, symbols, offset,
+ if (_bfd_dwarf1_find_nearest_line (abfd, symbols, section, offset,
filename_ptr, functionname_ptr,
- line_ptr, NULL, ABI_64_P (abfd) ? 8 : 0,
- &elf_tdata (abfd)->dwarf2_find_line_info))
+ line_ptr))
return TRUE;
msec = bfd_get_section_by_name (abfd, ".mdebug");
/* Fall back on the generic ELF find_nearest_line routine. */
- return _bfd_elf_find_nearest_line (abfd, section, symbols, offset,
+ return _bfd_elf_find_nearest_line (abfd, symbols, section, offset,
filename_ptr, functionname_ptr,
- line_ptr);
+ line_ptr, discriminator_ptr);
}
bfd_boolean
/* Switch between a 5-bit register index and its 3-bit shorthand. */
-#define BZ16_REG(opcode) ((((((opcode) >> 7) & 7) + 0x1e) & 0x17) + 2)
-#define BZ16_REG_FIELD(r) \
- (((2 <= (r) && (r) <= 7) ? (r) : ((r) - 16)) << 7)
+#define BZ16_REG(opcode) ((((((opcode) >> 7) & 7) + 0x1e) & 0xf) + 2)
+#define BZ16_REG_FIELD(r) (((r) & 7) << 7)
/* 32-bit instructions with a delay slot. */
#define MOVE16_RS_FIELD(r) (((r) & 0x1f) )
static const struct opcode_descriptor move_insns_32[] = {
- { /* "move", "d,s", */ 0x00000150, 0xffe007ff }, /* addu d,s,$0 */
{ /* "move", "d,s", */ 0x00000290, 0xffe007ff }, /* or d,s,$0 */
+ { /* "move", "d,s", */ 0x00000150, 0xffe007ff }, /* addu d,s,$0 */
{ 0, 0 } /* End marker for find_match(). */
};
this section does not have relocs, or if this is not a
code section. */
- if (link_info->relocatable
+ if (bfd_link_relocatable (link_info)
|| (sec->flags & SEC_RELOC) == 0
|| sec->reloc_count == 0
|| (sec->flags & SEC_CODE) == 0)
mips_elf_hash_table (info)->insn32 = on;
}
\f
-/* We need to use a special link routine to handle the .reginfo and
- the .mdebug sections. We need to merge all instances of these
- sections together, not write them all out sequentially. */
+/* Structure for saying that BFD machine EXTENSION extends BASE. */
-bfd_boolean
-_bfd_mips_elf_final_link (bfd *abfd, struct bfd_link_info *info)
+struct mips_mach_extension
{
- asection *o;
- struct bfd_link_order *p;
- asection *reginfo_sec, *mdebug_sec, *gptab_data_sec, *gptab_bss_sec;
- asection *rtproc_sec;
- Elf32_RegInfo reginfo;
- struct ecoff_debug_info debug;
- struct mips_htab_traverse_info hti;
- const struct elf_backend_data *bed = get_elf_backend_data (abfd);
- const struct ecoff_debug_swap *swap = bed->elf_backend_ecoff_debug_swap;
- HDRR *symhdr = &debug.symbolic_header;
- void *mdebug_handle = NULL;
- asection *s;
- EXTR esym;
- unsigned int i;
- bfd_size_type amt;
- struct mips_elf_link_hash_table *htab;
+ unsigned long extension, base;
+};
- static const char * const secname[] =
- {
- ".text", ".init", ".fini", ".data",
- ".rodata", ".sdata", ".sbss", ".bss"
- };
- static const int sc[] =
- {
+
+/* An array describing how BFD machines relate to one another. The entries
+ are ordered topologically with MIPS I extensions listed last. */
+
+static const struct mips_mach_extension mips_mach_extensions[] =
+{
+ /* MIPS64r2 extensions. */
+ { bfd_mach_mips_octeon3, bfd_mach_mips_octeon2 },
+ { bfd_mach_mips_octeon2, bfd_mach_mips_octeonp },
+ { bfd_mach_mips_octeonp, bfd_mach_mips_octeon },
+ { bfd_mach_mips_octeon, bfd_mach_mipsisa64r2 },
+ { bfd_mach_mips_loongson_3a, bfd_mach_mipsisa64r2 },
+
+ /* MIPS64 extensions. */
+ { bfd_mach_mipsisa64r2, bfd_mach_mipsisa64 },
+ { bfd_mach_mips_sb1, bfd_mach_mipsisa64 },
+ { bfd_mach_mips_xlr, bfd_mach_mipsisa64 },
+
+ /* MIPS V extensions. */
+ { bfd_mach_mipsisa64, bfd_mach_mips5 },
+
+ /* R10000 extensions. */
+ { bfd_mach_mips12000, bfd_mach_mips10000 },
+ { bfd_mach_mips14000, bfd_mach_mips10000 },
+ { bfd_mach_mips16000, bfd_mach_mips10000 },
+
+ /* R5000 extensions. Note: the vr5500 ISA is an extension of the core
+ vr5400 ISA, but doesn't include the multimedia stuff. It seems
+ better to allow vr5400 and vr5500 code to be merged anyway, since
+ many libraries will just use the core ISA. Perhaps we could add
+ some sort of ASE flag if this ever proves a problem. */
+ { bfd_mach_mips5500, bfd_mach_mips5400 },
+ { bfd_mach_mips5400, bfd_mach_mips5000 },
+
+ /* MIPS IV extensions. */
+ { bfd_mach_mips5, bfd_mach_mips8000 },
+ { bfd_mach_mips10000, bfd_mach_mips8000 },
+ { bfd_mach_mips5000, bfd_mach_mips8000 },
+ { bfd_mach_mips7000, bfd_mach_mips8000 },
+ { bfd_mach_mips9000, bfd_mach_mips8000 },
+
+ /* VR4100 extensions. */
+ { bfd_mach_mips4120, bfd_mach_mips4100 },
+ { bfd_mach_mips4111, bfd_mach_mips4100 },
+
+ /* MIPS III extensions. */
+ { bfd_mach_mips_loongson_2e, bfd_mach_mips4000 },
+ { bfd_mach_mips_loongson_2f, bfd_mach_mips4000 },
+ { bfd_mach_mips8000, bfd_mach_mips4000 },
+ { bfd_mach_mips4650, bfd_mach_mips4000 },
+ { bfd_mach_mips4600, bfd_mach_mips4000 },
+ { bfd_mach_mips4400, bfd_mach_mips4000 },
+ { bfd_mach_mips4300, bfd_mach_mips4000 },
+ { bfd_mach_mips4100, bfd_mach_mips4000 },
+ { bfd_mach_mips4010, bfd_mach_mips4000 },
+ { bfd_mach_mips5900, bfd_mach_mips4000 },
+
+ /* MIPS32 extensions. */
+ { bfd_mach_mipsisa32r2, bfd_mach_mipsisa32 },
+
+ /* MIPS II extensions. */
+ { bfd_mach_mips4000, bfd_mach_mips6000 },
+ { bfd_mach_mipsisa32, bfd_mach_mips6000 },
+
+ /* MIPS I extensions. */
+ { bfd_mach_mips6000, bfd_mach_mips3000 },
+ { bfd_mach_mips3900, bfd_mach_mips3000 }
+};
+
+/* Return true if bfd machine EXTENSION is an extension of machine BASE. */
+
+static bfd_boolean
+mips_mach_extends_p (unsigned long base, unsigned long extension)
+{
+ size_t i;
+
+ if (extension == base)
+ return TRUE;
+
+ if (base == bfd_mach_mipsisa32
+ && mips_mach_extends_p (bfd_mach_mipsisa64, extension))
+ return TRUE;
+
+ if (base == bfd_mach_mipsisa32r2
+ && mips_mach_extends_p (bfd_mach_mipsisa64r2, extension))
+ return TRUE;
+
+ for (i = 0; i < ARRAY_SIZE (mips_mach_extensions); i++)
+ if (extension == mips_mach_extensions[i].extension)
+ {
+ extension = mips_mach_extensions[i].base;
+ if (extension == base)
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+/* Return the BFD mach for each .MIPS.abiflags ISA Extension. */
+
+static unsigned long
+bfd_mips_isa_ext_mach (unsigned int isa_ext)
+{
+ switch (isa_ext)
+ {
+ case AFL_EXT_3900: return bfd_mach_mips3900;
+ case AFL_EXT_4010: return bfd_mach_mips4010;
+ case AFL_EXT_4100: return bfd_mach_mips4100;
+ case AFL_EXT_4111: return bfd_mach_mips4111;
+ case AFL_EXT_4120: return bfd_mach_mips4120;
+ case AFL_EXT_4650: return bfd_mach_mips4650;
+ case AFL_EXT_5400: return bfd_mach_mips5400;
+ case AFL_EXT_5500: return bfd_mach_mips5500;
+ case AFL_EXT_5900: return bfd_mach_mips5900;
+ case AFL_EXT_10000: return bfd_mach_mips10000;
+ case AFL_EXT_LOONGSON_2E: return bfd_mach_mips_loongson_2e;
+ case AFL_EXT_LOONGSON_2F: return bfd_mach_mips_loongson_2f;
+ case AFL_EXT_LOONGSON_3A: return bfd_mach_mips_loongson_3a;
+ case AFL_EXT_SB1: return bfd_mach_mips_sb1;
+ case AFL_EXT_OCTEON: return bfd_mach_mips_octeon;
+ case AFL_EXT_OCTEONP: return bfd_mach_mips_octeonp;
+ case AFL_EXT_OCTEON2: return bfd_mach_mips_octeon2;
+ case AFL_EXT_XLR: return bfd_mach_mips_xlr;
+ default: return bfd_mach_mips3000;
+ }
+}
+
+/* Return the .MIPS.abiflags value representing each ISA Extension. */
+
+unsigned int
+bfd_mips_isa_ext (bfd *abfd)
+{
+ switch (bfd_get_mach (abfd))
+ {
+ case bfd_mach_mips3900: return AFL_EXT_3900;
+ case bfd_mach_mips4010: return AFL_EXT_4010;
+ case bfd_mach_mips4100: return AFL_EXT_4100;
+ case bfd_mach_mips4111: return AFL_EXT_4111;
+ case bfd_mach_mips4120: return AFL_EXT_4120;
+ case bfd_mach_mips4650: return AFL_EXT_4650;
+ case bfd_mach_mips5400: return AFL_EXT_5400;
+ case bfd_mach_mips5500: return AFL_EXT_5500;
+ case bfd_mach_mips5900: return AFL_EXT_5900;
+ case bfd_mach_mips10000: return AFL_EXT_10000;
+ case bfd_mach_mips_loongson_2e: return AFL_EXT_LOONGSON_2E;
+ case bfd_mach_mips_loongson_2f: return AFL_EXT_LOONGSON_2F;
+ case bfd_mach_mips_loongson_3a: return AFL_EXT_LOONGSON_3A;
+ case bfd_mach_mips_sb1: return AFL_EXT_SB1;
+ case bfd_mach_mips_octeon: return AFL_EXT_OCTEON;
+ case bfd_mach_mips_octeonp: return AFL_EXT_OCTEONP;
+ case bfd_mach_mips_octeon3: return AFL_EXT_OCTEON3;
+ case bfd_mach_mips_octeon2: return AFL_EXT_OCTEON2;
+ case bfd_mach_mips_xlr: return AFL_EXT_XLR;
+ default: return 0;
+ }
+}
+
+/* Encode ISA level and revision as a single value. */
+#define LEVEL_REV(LEV,REV) ((LEV) << 3 | (REV))
+
+/* Decode a single value into level and revision. */
+#define ISA_LEVEL(LEVREV) ((LEVREV) >> 3)
+#define ISA_REV(LEVREV) ((LEVREV) & 0x7)
+
+/* Update the isa_level, isa_rev, isa_ext fields of abiflags. */
+
+static void
+update_mips_abiflags_isa (bfd *abfd, Elf_Internal_ABIFlags_v0 *abiflags)
+{
+ int new_isa = 0;
+ switch (elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH)
+ {
+ case E_MIPS_ARCH_1: new_isa = LEVEL_REV (1, 0); break;
+ case E_MIPS_ARCH_2: new_isa = LEVEL_REV (2, 0); break;
+ case E_MIPS_ARCH_3: new_isa = LEVEL_REV (3, 0); break;
+ case E_MIPS_ARCH_4: new_isa = LEVEL_REV (4, 0); break;
+ case E_MIPS_ARCH_5: new_isa = LEVEL_REV (5, 0); break;
+ case E_MIPS_ARCH_32: new_isa = LEVEL_REV (32, 1); break;
+ case E_MIPS_ARCH_32R2: new_isa = LEVEL_REV (32, 2); break;
+ case E_MIPS_ARCH_32R6: new_isa = LEVEL_REV (32, 6); break;
+ case E_MIPS_ARCH_64: new_isa = LEVEL_REV (64, 1); break;
+ case E_MIPS_ARCH_64R2: new_isa = LEVEL_REV (64, 2); break;
+ case E_MIPS_ARCH_64R6: new_isa = LEVEL_REV (64, 6); break;
+ default:
+ (*_bfd_error_handler)
+ (_("%B: Unknown architecture %s"),
+ abfd, bfd_printable_name (abfd));
+ }
+
+ if (new_isa > LEVEL_REV (abiflags->isa_level, abiflags->isa_rev))
+ {
+ abiflags->isa_level = ISA_LEVEL (new_isa);
+ abiflags->isa_rev = ISA_REV (new_isa);
+ }
+
+ /* Update the isa_ext if ABFD describes a further extension. */
+ if (mips_mach_extends_p (bfd_mips_isa_ext_mach (abiflags->isa_ext),
+ bfd_get_mach (abfd)))
+ abiflags->isa_ext = bfd_mips_isa_ext (abfd);
+}
+
+/* Return true if the given ELF header flags describe a 32-bit binary. */
+
+static bfd_boolean
+mips_32bit_flags_p (flagword flags)
+{
+ return ((flags & EF_MIPS_32BITMODE) != 0
+ || (flags & EF_MIPS_ABI) == E_MIPS_ABI_O32
+ || (flags & EF_MIPS_ABI) == E_MIPS_ABI_EABI32
+ || (flags & EF_MIPS_ARCH) == E_MIPS_ARCH_1
+ || (flags & EF_MIPS_ARCH) == E_MIPS_ARCH_2
+ || (flags & EF_MIPS_ARCH) == E_MIPS_ARCH_32
+ || (flags & EF_MIPS_ARCH) == E_MIPS_ARCH_32R2
+ || (flags & EF_MIPS_ARCH) == E_MIPS_ARCH_32R6);
+}
+
+/* Infer the content of the ABI flags based on the elf header. */
+
+static void
+infer_mips_abiflags (bfd *abfd, Elf_Internal_ABIFlags_v0* abiflags)
+{
+ obj_attribute *in_attr;
+
+ memset (abiflags, 0, sizeof (Elf_Internal_ABIFlags_v0));
+ update_mips_abiflags_isa (abfd, abiflags);
+
+ if (mips_32bit_flags_p (elf_elfheader (abfd)->e_flags))
+ abiflags->gpr_size = AFL_REG_32;
+ else
+ abiflags->gpr_size = AFL_REG_64;
+
+ abiflags->cpr1_size = AFL_REG_NONE;
+
+ in_attr = elf_known_obj_attributes (abfd)[OBJ_ATTR_GNU];
+ abiflags->fp_abi = in_attr[Tag_GNU_MIPS_ABI_FP].i;
+
+ if (abiflags->fp_abi == Val_GNU_MIPS_ABI_FP_SINGLE
+ || abiflags->fp_abi == Val_GNU_MIPS_ABI_FP_XX
+ || (abiflags->fp_abi == Val_GNU_MIPS_ABI_FP_DOUBLE
+ && abiflags->gpr_size == AFL_REG_32))
+ abiflags->cpr1_size = AFL_REG_32;
+ else if (abiflags->fp_abi == Val_GNU_MIPS_ABI_FP_DOUBLE
+ || abiflags->fp_abi == Val_GNU_MIPS_ABI_FP_64
+ || abiflags->fp_abi == Val_GNU_MIPS_ABI_FP_64A)
+ abiflags->cpr1_size = AFL_REG_64;
+
+ abiflags->cpr2_size = AFL_REG_NONE;
+
+ if (elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH_ASE_MDMX)
+ abiflags->ases |= AFL_ASE_MDMX;
+ if (elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH_ASE_M16)
+ abiflags->ases |= AFL_ASE_MIPS16;
+ if (elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH_ASE_MICROMIPS)
+ abiflags->ases |= AFL_ASE_MICROMIPS;
+
+ if (abiflags->fp_abi != Val_GNU_MIPS_ABI_FP_ANY
+ && abiflags->fp_abi != Val_GNU_MIPS_ABI_FP_SOFT
+ && abiflags->fp_abi != Val_GNU_MIPS_ABI_FP_64A
+ && abiflags->isa_level >= 32
+ && abiflags->isa_ext != AFL_EXT_LOONGSON_3A)
+ abiflags->flags1 |= AFL_FLAGS1_ODDSPREG;
+}
+
+/* We need to use a special link routine to handle the .reginfo and
+ the .mdebug sections. We need to merge all instances of these
+ sections together, not write them all out sequentially. */
+
+bfd_boolean
+_bfd_mips_elf_final_link (bfd *abfd, struct bfd_link_info *info)
+{
+ asection *o;
+ struct bfd_link_order *p;
+ asection *reginfo_sec, *mdebug_sec, *gptab_data_sec, *gptab_bss_sec;
+ asection *rtproc_sec, *abiflags_sec;
+ Elf32_RegInfo reginfo;
+ struct ecoff_debug_info debug;
+ struct mips_htab_traverse_info hti;
+ const struct elf_backend_data *bed = get_elf_backend_data (abfd);
+ const struct ecoff_debug_swap *swap = bed->elf_backend_ecoff_debug_swap;
+ HDRR *symhdr = &debug.symbolic_header;
+ void *mdebug_handle = NULL;
+ asection *s;
+ EXTR esym;
+ unsigned int i;
+ bfd_size_type amt;
+ struct mips_elf_link_hash_table *htab;
+
+ static const char * const secname[] =
+ {
+ ".text", ".init", ".fini", ".data",
+ ".rodata", ".sdata", ".sbss", ".bss"
+ };
+ static const int sc[] =
+ {
scText, scInit, scFini, scData,
scRData, scSData, scSBss, scBss
};
elf_gp (abfd) = (h->u.def.section->output_section->vma
+ h->u.def.section->output_offset
+ h->u.def.value);
- else if (info->relocatable)
+ else if (bfd_link_relocatable (info))
{
bfd_vma lo = MINUS_ONE;
/* Go through the sections and collect the .reginfo and .mdebug
information. */
+ abiflags_sec = NULL;
reginfo_sec = NULL;
mdebug_sec = NULL;
gptab_data_sec = NULL;
gptab_bss_sec = NULL;
for (o = abfd->sections; o != NULL; o = o->next)
{
+ if (strcmp (o->name, ".MIPS.abiflags") == 0)
+ {
+ /* We have found the .MIPS.abiflags section in the output file.
+ Look through all the link_orders comprising it and remove them.
+ The data is merged in _bfd_mips_elf_merge_private_bfd_data. */
+ for (p = o->map_head.link_order; p != NULL; p = p->next)
+ {
+ asection *input_section;
+
+ if (p->type != bfd_indirect_link_order)
+ {
+ if (p->type == bfd_data_link_order)
+ continue;
+ abort ();
+ }
+
+ input_section = p->u.indirect.section;
+
+ /* Hack: reset the SEC_HAS_CONTENTS flag so that
+ elf_link_input_bfd ignores this section. */
+ input_section->flags &= ~SEC_HAS_CONTENTS;
+ }
+
+ /* Size has been set in _bfd_mips_elf_always_size_sections. */
+ BFD_ASSERT(o->size == sizeof (Elf_External_ABIFlags_v0));
+
+ /* Skip this section later on (I don't think this currently
+ matters, but someday it might). */
+ o->map_head.link_order = NULL;
+
+ abiflags_sec = o;
+ }
+
if (strcmp (o->name, ".reginfo") == 0)
{
memset (®info, 0, sizeof reginfo);
input_section->flags &= ~SEC_HAS_CONTENTS;
}
- if (SGI_COMPAT (abfd) && info->shared)
+ if (SGI_COMPAT (abfd) && bfd_link_pic (info))
{
/* Create .rtproc section. */
rtproc_sec = bfd_get_linker_section (abfd, ".rtproc");
information describing how the small data area would
change depending upon the -G switch. These sections
not used in executables files. */
- if (! info->relocatable)
+ if (! bfd_link_relocatable (info))
{
for (p = o->map_head.link_order; p != NULL; p = p->next)
{
/* Now write out the computed sections. */
+ if (abiflags_sec != NULL)
+ {
+ Elf_External_ABIFlags_v0 ext;
+ Elf_Internal_ABIFlags_v0 *abiflags;
+
+ abiflags = &mips_elf_tdata (abfd)->abiflags;
+
+ /* Set up the abiflags if no valid input sections were found. */
+ if (!mips_elf_tdata (abfd)->abiflags_valid)
+ {
+ infer_mips_abiflags (abfd, abiflags);
+ mips_elf_tdata (abfd)->abiflags_valid = TRUE;
+ }
+ bfd_mips_elf_swap_abiflags_v0_out (abfd, abiflags, &ext);
+ if (! bfd_set_section_contents (abfd, abiflags_sec, &ext, 0, sizeof ext))
+ return FALSE;
+ }
+
if (reginfo_sec != NULL)
{
Elf32_External_RegInfo ext;
return TRUE;
}
\f
-/* Structure for saying that BFD machine EXTENSION extends BASE. */
+/* Merge object file header flags from IBFD into OBFD. Raise an error
+ if there are conflicting settings. */
-struct mips_mach_extension
+static bfd_boolean
+mips_elf_merge_obj_e_flags (bfd *ibfd, bfd *obfd)
{
- unsigned long extension, base;
-};
+ struct mips_elf_obj_tdata *out_tdata = mips_elf_tdata (obfd);
+ flagword old_flags;
+ flagword new_flags;
+ bfd_boolean ok;
+ new_flags = elf_elfheader (ibfd)->e_flags;
+ elf_elfheader (obfd)->e_flags |= new_flags & EF_MIPS_NOREORDER;
+ old_flags = elf_elfheader (obfd)->e_flags;
-/* An array describing how BFD machines relate to one another. The entries
- are ordered topologically with MIPS I extensions listed last. */
+ /* Check flag compatibility. */
-static const struct mips_mach_extension mips_mach_extensions[] =
-{
- /* MIPS64r2 extensions. */
- { bfd_mach_mips_octeon2, bfd_mach_mips_octeonp },
- { bfd_mach_mips_octeonp, bfd_mach_mips_octeon },
- { bfd_mach_mips_octeon, bfd_mach_mipsisa64r2 },
+ new_flags &= ~EF_MIPS_NOREORDER;
+ old_flags &= ~EF_MIPS_NOREORDER;
- /* MIPS64 extensions. */
- { bfd_mach_mipsisa64r2, bfd_mach_mipsisa64 },
- { bfd_mach_mips_sb1, bfd_mach_mipsisa64 },
- { bfd_mach_mips_xlr, bfd_mach_mipsisa64 },
- { bfd_mach_mips_loongson_3a, bfd_mach_mipsisa64 },
+ /* Some IRIX 6 BSD-compatibility objects have this bit set. It
+ doesn't seem to matter. */
+ new_flags &= ~EF_MIPS_XGOT;
+ old_flags &= ~EF_MIPS_XGOT;
- /* MIPS V extensions. */
- { bfd_mach_mipsisa64, bfd_mach_mips5 },
+ /* MIPSpro generates ucode info in n64 objects. Again, we should
+ just be able to ignore this. */
+ new_flags &= ~EF_MIPS_UCODE;
+ old_flags &= ~EF_MIPS_UCODE;
- /* R10000 extensions. */
- { bfd_mach_mips12000, bfd_mach_mips10000 },
- { bfd_mach_mips14000, bfd_mach_mips10000 },
- { bfd_mach_mips16000, bfd_mach_mips10000 },
+ /* DSOs should only be linked with CPIC code. */
+ if ((ibfd->flags & DYNAMIC) != 0)
+ new_flags |= EF_MIPS_PIC | EF_MIPS_CPIC;
- /* R5000 extensions. Note: the vr5500 ISA is an extension of the core
- vr5400 ISA, but doesn't include the multimedia stuff. It seems
- better to allow vr5400 and vr5500 code to be merged anyway, since
- many libraries will just use the core ISA. Perhaps we could add
- some sort of ASE flag if this ever proves a problem. */
- { bfd_mach_mips5500, bfd_mach_mips5400 },
- { bfd_mach_mips5400, bfd_mach_mips5000 },
+ if (new_flags == old_flags)
+ return TRUE;
- /* MIPS IV extensions. */
- { bfd_mach_mips5, bfd_mach_mips8000 },
- { bfd_mach_mips10000, bfd_mach_mips8000 },
- { bfd_mach_mips5000, bfd_mach_mips8000 },
- { bfd_mach_mips7000, bfd_mach_mips8000 },
- { bfd_mach_mips9000, bfd_mach_mips8000 },
+ ok = TRUE;
- /* VR4100 extensions. */
- { bfd_mach_mips4120, bfd_mach_mips4100 },
- { bfd_mach_mips4111, bfd_mach_mips4100 },
+ if (((new_flags & (EF_MIPS_PIC | EF_MIPS_CPIC)) != 0)
+ != ((old_flags & (EF_MIPS_PIC | EF_MIPS_CPIC)) != 0))
+ {
+ (*_bfd_error_handler)
+ (_("%B: warning: linking abicalls files with non-abicalls files"),
+ ibfd);
+ ok = TRUE;
+ }
- /* MIPS III extensions. */
- { bfd_mach_mips_loongson_2e, bfd_mach_mips4000 },
- { bfd_mach_mips_loongson_2f, bfd_mach_mips4000 },
- { bfd_mach_mips8000, bfd_mach_mips4000 },
- { bfd_mach_mips4650, bfd_mach_mips4000 },
- { bfd_mach_mips4600, bfd_mach_mips4000 },
- { bfd_mach_mips4400, bfd_mach_mips4000 },
- { bfd_mach_mips4300, bfd_mach_mips4000 },
- { bfd_mach_mips4100, bfd_mach_mips4000 },
- { bfd_mach_mips4010, bfd_mach_mips4000 },
- { bfd_mach_mips5900, bfd_mach_mips4000 },
+ if (new_flags & (EF_MIPS_PIC | EF_MIPS_CPIC))
+ elf_elfheader (obfd)->e_flags |= EF_MIPS_CPIC;
+ if (! (new_flags & EF_MIPS_PIC))
+ elf_elfheader (obfd)->e_flags &= ~EF_MIPS_PIC;
- /* MIPS32 extensions. */
- { bfd_mach_mipsisa32r2, bfd_mach_mipsisa32 },
+ new_flags &= ~ (EF_MIPS_PIC | EF_MIPS_CPIC);
+ old_flags &= ~ (EF_MIPS_PIC | EF_MIPS_CPIC);
- /* MIPS II extensions. */
- { bfd_mach_mips4000, bfd_mach_mips6000 },
- { bfd_mach_mipsisa32, bfd_mach_mips6000 },
+ /* Compare the ISAs. */
+ if (mips_32bit_flags_p (old_flags) != mips_32bit_flags_p (new_flags))
+ {
+ (*_bfd_error_handler)
+ (_("%B: linking 32-bit code with 64-bit code"),
+ ibfd);
+ ok = FALSE;
+ }
+ else if (!mips_mach_extends_p (bfd_get_mach (ibfd), bfd_get_mach (obfd)))
+ {
+ /* OBFD's ISA isn't the same as, or an extension of, IBFD's. */
+ if (mips_mach_extends_p (bfd_get_mach (obfd), bfd_get_mach (ibfd)))
+ {
+ /* Copy the architecture info from IBFD to OBFD. Also copy
+ the 32-bit flag (if set) so that we continue to recognise
+ OBFD as a 32-bit binary. */
+ bfd_set_arch_info (obfd, bfd_get_arch_info (ibfd));
+ elf_elfheader (obfd)->e_flags &= ~(EF_MIPS_ARCH | EF_MIPS_MACH);
+ elf_elfheader (obfd)->e_flags
+ |= new_flags & (EF_MIPS_ARCH | EF_MIPS_MACH | EF_MIPS_32BITMODE);
- /* MIPS I extensions. */
- { bfd_mach_mips6000, bfd_mach_mips3000 },
- { bfd_mach_mips3900, bfd_mach_mips3000 }
-};
+ /* Update the ABI flags isa_level, isa_rev, isa_ext fields. */
+ update_mips_abiflags_isa (obfd, &out_tdata->abiflags);
+ /* Copy across the ABI flags if OBFD doesn't use them
+ and if that was what caused us to treat IBFD as 32-bit. */
+ if ((old_flags & EF_MIPS_ABI) == 0
+ && mips_32bit_flags_p (new_flags)
+ && !mips_32bit_flags_p (new_flags & ~EF_MIPS_ABI))
+ elf_elfheader (obfd)->e_flags |= new_flags & EF_MIPS_ABI;
+ }
+ else
+ {
+ /* The ISAs aren't compatible. */
+ (*_bfd_error_handler)
+ (_("%B: linking %s module with previous %s modules"),
+ ibfd,
+ bfd_printable_name (ibfd),
+ bfd_printable_name (obfd));
+ ok = FALSE;
+ }
+ }
-/* Return true if bfd machine EXTENSION is an extension of machine BASE. */
+ new_flags &= ~(EF_MIPS_ARCH | EF_MIPS_MACH | EF_MIPS_32BITMODE);
+ old_flags &= ~(EF_MIPS_ARCH | EF_MIPS_MACH | EF_MIPS_32BITMODE);
-static bfd_boolean
-mips_mach_extends_p (unsigned long base, unsigned long extension)
-{
- size_t i;
+ /* Compare ABIs. The 64-bit ABI does not use EF_MIPS_ABI. But, it
+ does set EI_CLASS differently from any 32-bit ABI. */
+ if ((new_flags & EF_MIPS_ABI) != (old_flags & EF_MIPS_ABI)
+ || (elf_elfheader (ibfd)->e_ident[EI_CLASS]
+ != elf_elfheader (obfd)->e_ident[EI_CLASS]))
+ {
+ /* Only error if both are set (to different values). */
+ if (((new_flags & EF_MIPS_ABI) && (old_flags & EF_MIPS_ABI))
+ || (elf_elfheader (ibfd)->e_ident[EI_CLASS]
+ != elf_elfheader (obfd)->e_ident[EI_CLASS]))
+ {
+ (*_bfd_error_handler)
+ (_("%B: ABI mismatch: linking %s module with previous %s modules"),
+ ibfd,
+ elf_mips_abi_name (ibfd),
+ elf_mips_abi_name (obfd));
+ ok = FALSE;
+ }
+ new_flags &= ~EF_MIPS_ABI;
+ old_flags &= ~EF_MIPS_ABI;
+ }
- if (extension == base)
- return TRUE;
+ /* Compare ASEs. Forbid linking MIPS16 and microMIPS ASE modules together
+ and allow arbitrary mixing of the remaining ASEs (retain the union). */
+ if ((new_flags & EF_MIPS_ARCH_ASE) != (old_flags & EF_MIPS_ARCH_ASE))
+ {
+ int old_micro = old_flags & EF_MIPS_ARCH_ASE_MICROMIPS;
+ int new_micro = new_flags & EF_MIPS_ARCH_ASE_MICROMIPS;
+ int old_m16 = old_flags & EF_MIPS_ARCH_ASE_M16;
+ int new_m16 = new_flags & EF_MIPS_ARCH_ASE_M16;
+ int micro_mis = old_m16 && new_micro;
+ int m16_mis = old_micro && new_m16;
- if (base == bfd_mach_mipsisa32
- && mips_mach_extends_p (bfd_mach_mipsisa64, extension))
- return TRUE;
+ if (m16_mis || micro_mis)
+ {
+ (*_bfd_error_handler)
+ (_("%B: ASE mismatch: linking %s module with previous %s modules"),
+ ibfd,
+ m16_mis ? "MIPS16" : "microMIPS",
+ m16_mis ? "microMIPS" : "MIPS16");
+ ok = FALSE;
+ }
- if (base == bfd_mach_mipsisa32r2
- && mips_mach_extends_p (bfd_mach_mipsisa64r2, extension))
- return TRUE;
+ elf_elfheader (obfd)->e_flags |= new_flags & EF_MIPS_ARCH_ASE;
- for (i = 0; i < ARRAY_SIZE (mips_mach_extensions); i++)
- if (extension == mips_mach_extensions[i].extension)
- {
- extension = mips_mach_extensions[i].base;
- if (extension == base)
- return TRUE;
- }
+ new_flags &= ~ EF_MIPS_ARCH_ASE;
+ old_flags &= ~ EF_MIPS_ARCH_ASE;
+ }
- return FALSE;
-}
+ /* Compare NaN encodings. */
+ if ((new_flags & EF_MIPS_NAN2008) != (old_flags & EF_MIPS_NAN2008))
+ {
+ _bfd_error_handler (_("%B: linking %s module with previous %s modules"),
+ ibfd,
+ (new_flags & EF_MIPS_NAN2008
+ ? "-mnan=2008" : "-mnan=legacy"),
+ (old_flags & EF_MIPS_NAN2008
+ ? "-mnan=2008" : "-mnan=legacy"));
+ ok = FALSE;
+ new_flags &= ~EF_MIPS_NAN2008;
+ old_flags &= ~EF_MIPS_NAN2008;
+ }
+ /* Compare FP64 state. */
+ if ((new_flags & EF_MIPS_FP64) != (old_flags & EF_MIPS_FP64))
+ {
+ _bfd_error_handler (_("%B: linking %s module with previous %s modules"),
+ ibfd,
+ (new_flags & EF_MIPS_FP64
+ ? "-mfp64" : "-mfp32"),
+ (old_flags & EF_MIPS_FP64
+ ? "-mfp64" : "-mfp32"));
+ ok = FALSE;
+ new_flags &= ~EF_MIPS_FP64;
+ old_flags &= ~EF_MIPS_FP64;
+ }
-/* Return true if the given ELF header flags describe a 32-bit binary. */
+ /* Warn about any other mismatches */
+ if (new_flags != old_flags)
+ {
+ (*_bfd_error_handler)
+ (_("%B: uses different e_flags (0x%lx) fields than previous modules "
+ "(0x%lx)"),
+ ibfd, (unsigned long) new_flags,
+ (unsigned long) old_flags);
+ ok = FALSE;
+ }
-static bfd_boolean
-mips_32bit_flags_p (flagword flags)
-{
- return ((flags & EF_MIPS_32BITMODE) != 0
- || (flags & EF_MIPS_ABI) == E_MIPS_ABI_O32
- || (flags & EF_MIPS_ABI) == E_MIPS_ABI_EABI32
- || (flags & EF_MIPS_ARCH) == E_MIPS_ARCH_1
- || (flags & EF_MIPS_ARCH) == E_MIPS_ARCH_2
- || (flags & EF_MIPS_ARCH) == E_MIPS_ARCH_32
- || (flags & EF_MIPS_ARCH) == E_MIPS_ARCH_32R2);
+ return ok;
}
-
/* Merge object attributes from IBFD into OBFD. Raise an error if
there are conflicting attributes. */
static bfd_boolean
out_attr = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
if (in_attr[Tag_GNU_MIPS_ABI_FP].i != out_attr[Tag_GNU_MIPS_ABI_FP].i)
{
- out_attr[Tag_GNU_MIPS_ABI_FP].type = 1;
- if (out_attr[Tag_GNU_MIPS_ABI_FP].i == Val_GNU_MIPS_ABI_FP_ANY)
- out_attr[Tag_GNU_MIPS_ABI_FP].i = in_attr[Tag_GNU_MIPS_ABI_FP].i;
- else if (in_attr[Tag_GNU_MIPS_ABI_FP].i != Val_GNU_MIPS_ABI_FP_ANY)
- switch (out_attr[Tag_GNU_MIPS_ABI_FP].i)
- {
- case Val_GNU_MIPS_ABI_FP_DOUBLE:
- switch (in_attr[Tag_GNU_MIPS_ABI_FP].i)
- {
- case Val_GNU_MIPS_ABI_FP_SINGLE:
- _bfd_error_handler
- (_("Warning: %B uses %s (set by %B), %B uses %s"),
- obfd, abi_fp_bfd, ibfd, "-mdouble-float", "-msingle-float");
- break;
-
- case Val_GNU_MIPS_ABI_FP_SOFT:
- _bfd_error_handler
- (_("Warning: %B uses %s (set by %B), %B uses %s"),
- obfd, abi_fp_bfd, ibfd, "-mhard-float", "-msoft-float");
- break;
-
- case Val_GNU_MIPS_ABI_FP_64:
- _bfd_error_handler
- (_("Warning: %B uses %s (set by %B), %B uses %s"),
- obfd, abi_fp_bfd, ibfd,
- "-mdouble-float", "-mips32r2 -mfp64");
- break;
-
- default:
- _bfd_error_handler
- (_("Warning: %B uses %s (set by %B), "
- "%B uses unknown floating point ABI %d"),
- obfd, abi_fp_bfd, ibfd,
- "-mdouble-float", in_attr[Tag_GNU_MIPS_ABI_FP].i);
- break;
- }
- break;
-
- case Val_GNU_MIPS_ABI_FP_SINGLE:
- switch (in_attr[Tag_GNU_MIPS_ABI_FP].i)
- {
- case Val_GNU_MIPS_ABI_FP_DOUBLE:
- _bfd_error_handler
- (_("Warning: %B uses %s (set by %B), %B uses %s"),
- obfd, abi_fp_bfd, ibfd, "-msingle-float", "-mdouble-float");
- break;
-
- case Val_GNU_MIPS_ABI_FP_SOFT:
- _bfd_error_handler
- (_("Warning: %B uses %s (set by %B), %B uses %s"),
- obfd, abi_fp_bfd, ibfd, "-mhard-float", "-msoft-float");
- break;
-
- case Val_GNU_MIPS_ABI_FP_64:
- _bfd_error_handler
- (_("Warning: %B uses %s (set by %B), %B uses %s"),
- obfd, abi_fp_bfd, ibfd,
- "-msingle-float", "-mips32r2 -mfp64");
- break;
-
- default:
- _bfd_error_handler
- (_("Warning: %B uses %s (set by %B), "
- "%B uses unknown floating point ABI %d"),
- obfd, abi_fp_bfd, ibfd,
- "-msingle-float", in_attr[Tag_GNU_MIPS_ABI_FP].i);
- break;
- }
- break;
-
- case Val_GNU_MIPS_ABI_FP_SOFT:
- switch (in_attr[Tag_GNU_MIPS_ABI_FP].i)
- {
- case Val_GNU_MIPS_ABI_FP_DOUBLE:
- case Val_GNU_MIPS_ABI_FP_SINGLE:
- case Val_GNU_MIPS_ABI_FP_64:
- _bfd_error_handler
- (_("Warning: %B uses %s (set by %B), %B uses %s"),
- obfd, abi_fp_bfd, ibfd, "-msoft-float", "-mhard-float");
- break;
-
- default:
- _bfd_error_handler
- (_("Warning: %B uses %s (set by %B), "
- "%B uses unknown floating point ABI %d"),
- obfd, abi_fp_bfd, ibfd,
- "-msoft-float", in_attr[Tag_GNU_MIPS_ABI_FP].i);
- break;
- }
- break;
-
- case Val_GNU_MIPS_ABI_FP_64:
- switch (in_attr[Tag_GNU_MIPS_ABI_FP].i)
- {
- case Val_GNU_MIPS_ABI_FP_DOUBLE:
- _bfd_error_handler
- (_("Warning: %B uses %s (set by %B), %B uses %s"),
- obfd, abi_fp_bfd, ibfd,
- "-mips32r2 -mfp64", "-mdouble-float");
- break;
-
- case Val_GNU_MIPS_ABI_FP_SINGLE:
- _bfd_error_handler
- (_("Warning: %B uses %s (set by %B), %B uses %s"),
- obfd, abi_fp_bfd, ibfd,
- "-mips32r2 -mfp64", "-msingle-float");
- break;
-
- case Val_GNU_MIPS_ABI_FP_SOFT:
- _bfd_error_handler
- (_("Warning: %B uses %s (set by %B), %B uses %s"),
- obfd, abi_fp_bfd, ibfd, "-mhard-float", "-msoft-float");
- break;
-
- default:
- _bfd_error_handler
- (_("Warning: %B uses %s (set by %B), "
- "%B uses unknown floating point ABI %d"),
- obfd, abi_fp_bfd, ibfd,
- "-mips32r2 -mfp64", in_attr[Tag_GNU_MIPS_ABI_FP].i);
- break;
- }
- break;
-
- default:
- switch (in_attr[Tag_GNU_MIPS_ABI_FP].i)
- {
- case Val_GNU_MIPS_ABI_FP_DOUBLE:
- _bfd_error_handler
- (_("Warning: %B uses unknown floating point ABI %d "
- "(set by %B), %B uses %s"),
- obfd, abi_fp_bfd, ibfd,
- out_attr[Tag_GNU_MIPS_ABI_FP].i, "-mdouble-float");
- break;
-
- case Val_GNU_MIPS_ABI_FP_SINGLE:
- _bfd_error_handler
- (_("Warning: %B uses unknown floating point ABI %d "
- "(set by %B), %B uses %s"),
- obfd, abi_fp_bfd, ibfd,
- out_attr[Tag_GNU_MIPS_ABI_FP].i, "-msingle-float");
- break;
-
- case Val_GNU_MIPS_ABI_FP_SOFT:
- _bfd_error_handler
- (_("Warning: %B uses unknown floating point ABI %d "
- "(set by %B), %B uses %s"),
- obfd, abi_fp_bfd, ibfd,
- out_attr[Tag_GNU_MIPS_ABI_FP].i, "-msoft-float");
- break;
-
- case Val_GNU_MIPS_ABI_FP_64:
- _bfd_error_handler
- (_("Warning: %B uses unknown floating point ABI %d "
- "(set by %B), %B uses %s"),
- obfd, abi_fp_bfd, ibfd,
- out_attr[Tag_GNU_MIPS_ABI_FP].i, "-mips32r2 -mfp64");
- break;
+ int out_fp, in_fp;
- default:
- _bfd_error_handler
- (_("Warning: %B uses unknown floating point ABI %d "
- "(set by %B), %B uses unknown floating point ABI %d"),
- obfd, abi_fp_bfd, ibfd,
- out_attr[Tag_GNU_MIPS_ABI_FP].i,
- in_attr[Tag_GNU_MIPS_ABI_FP].i);
- break;
- }
- break;
- }
+ out_fp = out_attr[Tag_GNU_MIPS_ABI_FP].i;
+ in_fp = in_attr[Tag_GNU_MIPS_ABI_FP].i;
+ out_attr[Tag_GNU_MIPS_ABI_FP].type = 1;
+ if (out_fp == Val_GNU_MIPS_ABI_FP_ANY)
+ out_attr[Tag_GNU_MIPS_ABI_FP].i = in_fp;
+ else if (out_fp == Val_GNU_MIPS_ABI_FP_XX
+ && (in_fp == Val_GNU_MIPS_ABI_FP_DOUBLE
+ || in_fp == Val_GNU_MIPS_ABI_FP_64
+ || in_fp == Val_GNU_MIPS_ABI_FP_64A))
+ {
+ mips_elf_tdata (obfd)->abi_fp_bfd = ibfd;
+ out_attr[Tag_GNU_MIPS_ABI_FP].i = in_attr[Tag_GNU_MIPS_ABI_FP].i;
+ }
+ else if (in_fp == Val_GNU_MIPS_ABI_FP_XX
+ && (out_fp == Val_GNU_MIPS_ABI_FP_DOUBLE
+ || out_fp == Val_GNU_MIPS_ABI_FP_64
+ || out_fp == Val_GNU_MIPS_ABI_FP_64A))
+ /* Keep the current setting. */;
+ else if (out_fp == Val_GNU_MIPS_ABI_FP_64A
+ && in_fp == Val_GNU_MIPS_ABI_FP_64)
+ {
+ mips_elf_tdata (obfd)->abi_fp_bfd = ibfd;
+ out_attr[Tag_GNU_MIPS_ABI_FP].i = in_attr[Tag_GNU_MIPS_ABI_FP].i;
+ }
+ else if (in_fp == Val_GNU_MIPS_ABI_FP_64A
+ && out_fp == Val_GNU_MIPS_ABI_FP_64)
+ /* Keep the current setting. */;
+ else if (in_fp != Val_GNU_MIPS_ABI_FP_ANY)
+ {
+ const char *out_string, *in_string;
+
+ out_string = _bfd_mips_fp_abi_string (out_fp);
+ in_string = _bfd_mips_fp_abi_string (in_fp);
+ /* First warn about cases involving unrecognised ABIs. */
+ if (!out_string && !in_string)
+ _bfd_error_handler
+ (_("Warning: %B uses unknown floating point ABI %d "
+ "(set by %B), %B uses unknown floating point ABI %d"),
+ obfd, abi_fp_bfd, ibfd, out_fp, in_fp);
+ else if (!out_string)
+ _bfd_error_handler
+ (_("Warning: %B uses unknown floating point ABI %d "
+ "(set by %B), %B uses %s"),
+ obfd, abi_fp_bfd, ibfd, out_fp, in_string);
+ else if (!in_string)
+ _bfd_error_handler
+ (_("Warning: %B uses %s (set by %B), "
+ "%B uses unknown floating point ABI %d"),
+ obfd, abi_fp_bfd, ibfd, out_string, in_fp);
+ else
+ {
+ /* If one of the bfds is soft-float, the other must be
+ hard-float. The exact choice of hard-float ABI isn't
+ really relevant to the error message. */
+ if (in_fp == Val_GNU_MIPS_ABI_FP_SOFT)
+ out_string = "-mhard-float";
+ else if (out_fp == Val_GNU_MIPS_ABI_FP_SOFT)
+ in_string = "-mhard-float";
+ _bfd_error_handler
+ (_("Warning: %B uses %s (set by %B), %B uses %s"),
+ obfd, abi_fp_bfd, ibfd, out_string, in_string);
+ }
+ }
}
/* Check for conflicting Tag_GNU_MIPS_ABI_MSA attributes and merge
}
/* Merge Tag_compatibility attributes and any common GNU ones. */
- _bfd_elf_merge_object_attributes (ibfd, obfd);
-
- return TRUE;
+ return _bfd_elf_merge_object_attributes (ibfd, obfd);
}
-/* Merge backend specific data from an object file to the output
- object file when linking. */
-
-bfd_boolean
-_bfd_mips_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
-{
- flagword old_flags;
- flagword new_flags;
- bfd_boolean ok;
- bfd_boolean null_input_bfd = TRUE;
- asection *sec;
-
- /* Check if we have the same endianness. */
- if (! _bfd_generic_verify_endian_match (ibfd, obfd))
- {
- (*_bfd_error_handler)
- (_("%B: endianness incompatible with that of the selected emulation"),
- ibfd);
- return FALSE;
- }
-
- if (!is_mips_elf (ibfd) || !is_mips_elf (obfd))
- return TRUE;
-
- if (strcmp (bfd_get_target (ibfd), bfd_get_target (obfd)) != 0)
- {
- (*_bfd_error_handler)
- (_("%B: ABI is incompatible with that of the selected emulation"),
- ibfd);
- return FALSE;
- }
-
- if (!mips_elf_merge_obj_attributes (ibfd, obfd))
- return FALSE;
-
- new_flags = elf_elfheader (ibfd)->e_flags;
- elf_elfheader (obfd)->e_flags |= new_flags & EF_MIPS_NOREORDER;
- old_flags = elf_elfheader (obfd)->e_flags;
+/* Merge object ABI flags from IBFD into OBFD. Raise an error if
+ there are conflicting settings. */
- if (! elf_flags_init (obfd))
- {
- elf_flags_init (obfd) = TRUE;
- elf_elfheader (obfd)->e_flags = new_flags;
- elf_elfheader (obfd)->e_ident[EI_CLASS]
- = elf_elfheader (ibfd)->e_ident[EI_CLASS];
-
- if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
- && (bfd_get_arch_info (obfd)->the_default
- || mips_mach_extends_p (bfd_get_mach (obfd),
- bfd_get_mach (ibfd))))
- {
- if (! bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
- bfd_get_mach (ibfd)))
- return FALSE;
- }
-
- return TRUE;
- }
-
- /* Check flag compatibility. */
+static bfd_boolean
+mips_elf_merge_obj_abiflags (bfd *ibfd, bfd *obfd)
+{
+ obj_attribute *out_attr = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
+ struct mips_elf_obj_tdata *out_tdata = mips_elf_tdata (obfd);
+ struct mips_elf_obj_tdata *in_tdata = mips_elf_tdata (ibfd);
+
+ /* Update the output abiflags fp_abi using the computed fp_abi. */
+ out_tdata->abiflags.fp_abi = out_attr[Tag_GNU_MIPS_ABI_FP].i;
+
+#define max(a, b) ((a) > (b) ? (a) : (b))
+ /* Merge abiflags. */
+ out_tdata->abiflags.isa_level = max (out_tdata->abiflags.isa_level,
+ in_tdata->abiflags.isa_level);
+ out_tdata->abiflags.isa_rev = max (out_tdata->abiflags.isa_rev,
+ in_tdata->abiflags.isa_rev);
+ out_tdata->abiflags.gpr_size = max (out_tdata->abiflags.gpr_size,
+ in_tdata->abiflags.gpr_size);
+ out_tdata->abiflags.cpr1_size = max (out_tdata->abiflags.cpr1_size,
+ in_tdata->abiflags.cpr1_size);
+ out_tdata->abiflags.cpr2_size = max (out_tdata->abiflags.cpr2_size,
+ in_tdata->abiflags.cpr2_size);
+#undef max
+ out_tdata->abiflags.ases |= in_tdata->abiflags.ases;
+ out_tdata->abiflags.flags1 |= in_tdata->abiflags.flags1;
- new_flags &= ~EF_MIPS_NOREORDER;
- old_flags &= ~EF_MIPS_NOREORDER;
+ return TRUE;
+}
- /* Some IRIX 6 BSD-compatibility objects have this bit set. It
- doesn't seem to matter. */
- new_flags &= ~EF_MIPS_XGOT;
- old_flags &= ~EF_MIPS_XGOT;
+/* Merge backend specific data from an object file to the output
+ object file when linking. */
- /* MIPSpro generates ucode info in n64 objects. Again, we should
- just be able to ignore this. */
- new_flags &= ~EF_MIPS_UCODE;
- old_flags &= ~EF_MIPS_UCODE;
+bfd_boolean
+_bfd_mips_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
+{
+ struct mips_elf_obj_tdata *out_tdata;
+ struct mips_elf_obj_tdata *in_tdata;
+ bfd_boolean null_input_bfd = TRUE;
+ asection *sec;
+ bfd_boolean ok;
- /* DSOs should only be linked with CPIC code. */
- if ((ibfd->flags & DYNAMIC) != 0)
- new_flags |= EF_MIPS_PIC | EF_MIPS_CPIC;
+ /* Check if we have the same endianness. */
+ if (! _bfd_generic_verify_endian_match (ibfd, obfd))
+ {
+ (*_bfd_error_handler)
+ (_("%B: endianness incompatible with that of the selected emulation"),
+ ibfd);
+ return FALSE;
+ }
- if (new_flags == old_flags)
+ if (!is_mips_elf (ibfd) || !is_mips_elf (obfd))
return TRUE;
- /* Check to see if the input BFD actually contains any sections.
- If not, its flags may not have been initialised either, but it cannot
- actually cause any incompatibility. */
+ in_tdata = mips_elf_tdata (ibfd);
+ out_tdata = mips_elf_tdata (obfd);
+
+ if (strcmp (bfd_get_target (ibfd), bfd_get_target (obfd)) != 0)
+ {
+ (*_bfd_error_handler)
+ (_("%B: ABI is incompatible with that of the selected emulation"),
+ ibfd);
+ return FALSE;
+ }
+
+ /* Check to see if the input BFD actually contains any sections. If not,
+ then it has no attributes, and its flags may not have been initialized
+ either, but it cannot actually cause any incompatibility. */
for (sec = ibfd->sections; sec != NULL; sec = sec->next)
{
/* Ignore synthetic sections and empty .text, .data and .bss sections
if (null_input_bfd)
return TRUE;
- ok = TRUE;
-
- if (((new_flags & (EF_MIPS_PIC | EF_MIPS_CPIC)) != 0)
- != ((old_flags & (EF_MIPS_PIC | EF_MIPS_CPIC)) != 0))
- {
- (*_bfd_error_handler)
- (_("%B: warning: linking abicalls files with non-abicalls files"),
- ibfd);
- ok = TRUE;
- }
-
- if (new_flags & (EF_MIPS_PIC | EF_MIPS_CPIC))
- elf_elfheader (obfd)->e_flags |= EF_MIPS_CPIC;
- if (! (new_flags & EF_MIPS_PIC))
- elf_elfheader (obfd)->e_flags &= ~EF_MIPS_PIC;
-
- new_flags &= ~ (EF_MIPS_PIC | EF_MIPS_CPIC);
- old_flags &= ~ (EF_MIPS_PIC | EF_MIPS_CPIC);
-
- /* Compare the ISAs. */
- if (mips_32bit_flags_p (old_flags) != mips_32bit_flags_p (new_flags))
- {
- (*_bfd_error_handler)
- (_("%B: linking 32-bit code with 64-bit code"),
- ibfd);
- ok = FALSE;
+ /* Populate abiflags using existing information. */
+ if (in_tdata->abiflags_valid)
+ {
+ obj_attribute *in_attr = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
+ Elf_Internal_ABIFlags_v0 in_abiflags;
+ Elf_Internal_ABIFlags_v0 abiflags;
+
+ /* Set up the FP ABI attribute from the abiflags if it is not already
+ set. */
+ if (in_attr[Tag_GNU_MIPS_ABI_FP].i == Val_GNU_MIPS_ABI_FP_ANY)
+ in_attr[Tag_GNU_MIPS_ABI_FP].i = in_tdata->abiflags.fp_abi;
+
+ infer_mips_abiflags (ibfd, &abiflags);
+ in_abiflags = in_tdata->abiflags;
+
+ /* It is not possible to infer the correct ISA revision
+ for R3 or R5 so drop down to R2 for the checks. */
+ if (in_abiflags.isa_rev == 3 || in_abiflags.isa_rev == 5)
+ in_abiflags.isa_rev = 2;
+
+ if (LEVEL_REV (in_abiflags.isa_level, in_abiflags.isa_rev)
+ < LEVEL_REV (abiflags.isa_level, abiflags.isa_rev))
+ (*_bfd_error_handler)
+ (_("%B: warning: Inconsistent ISA between e_flags and "
+ ".MIPS.abiflags"), ibfd);
+ if (abiflags.fp_abi != Val_GNU_MIPS_ABI_FP_ANY
+ && in_abiflags.fp_abi != abiflags.fp_abi)
+ (*_bfd_error_handler)
+ (_("%B: warning: Inconsistent FP ABI between .gnu.attributes and "
+ ".MIPS.abiflags"), ibfd);
+ if ((in_abiflags.ases & abiflags.ases) != abiflags.ases)
+ (*_bfd_error_handler)
+ (_("%B: warning: Inconsistent ASEs between e_flags and "
+ ".MIPS.abiflags"), ibfd);
+ /* The isa_ext is allowed to be an extension of what can be inferred
+ from e_flags. */
+ if (!mips_mach_extends_p (bfd_mips_isa_ext_mach (abiflags.isa_ext),
+ bfd_mips_isa_ext_mach (in_abiflags.isa_ext)))
+ (*_bfd_error_handler)
+ (_("%B: warning: Inconsistent ISA extensions between e_flags and "
+ ".MIPS.abiflags"), ibfd);
+ if (in_abiflags.flags2 != 0)
+ (*_bfd_error_handler)
+ (_("%B: warning: Unexpected flag in the flags2 field of "
+ ".MIPS.abiflags (0x%lx)"), ibfd,
+ (unsigned long) in_abiflags.flags2);
}
- else if (!mips_mach_extends_p (bfd_get_mach (ibfd), bfd_get_mach (obfd)))
+ else
{
- /* OBFD's ISA isn't the same as, or an extension of, IBFD's. */
- if (mips_mach_extends_p (bfd_get_mach (obfd), bfd_get_mach (ibfd)))
- {
- /* Copy the architecture info from IBFD to OBFD. Also copy
- the 32-bit flag (if set) so that we continue to recognise
- OBFD as a 32-bit binary. */
- bfd_set_arch_info (obfd, bfd_get_arch_info (ibfd));
- elf_elfheader (obfd)->e_flags &= ~(EF_MIPS_ARCH | EF_MIPS_MACH);
- elf_elfheader (obfd)->e_flags
- |= new_flags & (EF_MIPS_ARCH | EF_MIPS_MACH | EF_MIPS_32BITMODE);
-
- /* Copy across the ABI flags if OBFD doesn't use them
- and if that was what caused us to treat IBFD as 32-bit. */
- if ((old_flags & EF_MIPS_ABI) == 0
- && mips_32bit_flags_p (new_flags)
- && !mips_32bit_flags_p (new_flags & ~EF_MIPS_ABI))
- elf_elfheader (obfd)->e_flags |= new_flags & EF_MIPS_ABI;
- }
- else
- {
- /* The ISAs aren't compatible. */
- (*_bfd_error_handler)
- (_("%B: linking %s module with previous %s modules"),
- ibfd,
- bfd_printable_name (ibfd),
- bfd_printable_name (obfd));
- ok = FALSE;
- }
+ infer_mips_abiflags (ibfd, &in_tdata->abiflags);
+ in_tdata->abiflags_valid = TRUE;
}
- new_flags &= ~(EF_MIPS_ARCH | EF_MIPS_MACH | EF_MIPS_32BITMODE);
- old_flags &= ~(EF_MIPS_ARCH | EF_MIPS_MACH | EF_MIPS_32BITMODE);
-
- /* Compare ABIs. The 64-bit ABI does not use EF_MIPS_ABI. But, it
- does set EI_CLASS differently from any 32-bit ABI. */
- if ((new_flags & EF_MIPS_ABI) != (old_flags & EF_MIPS_ABI)
- || (elf_elfheader (ibfd)->e_ident[EI_CLASS]
- != elf_elfheader (obfd)->e_ident[EI_CLASS]))
+ if (!out_tdata->abiflags_valid)
{
- /* Only error if both are set (to different values). */
- if (((new_flags & EF_MIPS_ABI) && (old_flags & EF_MIPS_ABI))
- || (elf_elfheader (ibfd)->e_ident[EI_CLASS]
- != elf_elfheader (obfd)->e_ident[EI_CLASS]))
- {
- (*_bfd_error_handler)
- (_("%B: ABI mismatch: linking %s module with previous %s modules"),
- ibfd,
- elf_mips_abi_name (ibfd),
- elf_mips_abi_name (obfd));
- ok = FALSE;
- }
- new_flags &= ~EF_MIPS_ABI;
- old_flags &= ~EF_MIPS_ABI;
+ /* Copy input abiflags if output abiflags are not already valid. */
+ out_tdata->abiflags = in_tdata->abiflags;
+ out_tdata->abiflags_valid = TRUE;
}
- /* Compare ASEs. Forbid linking MIPS16 and microMIPS ASE modules together
- and allow arbitrary mixing of the remaining ASEs (retain the union). */
- if ((new_flags & EF_MIPS_ARCH_ASE) != (old_flags & EF_MIPS_ARCH_ASE))
+ if (! elf_flags_init (obfd))
{
- int old_micro = old_flags & EF_MIPS_ARCH_ASE_MICROMIPS;
- int new_micro = new_flags & EF_MIPS_ARCH_ASE_MICROMIPS;
- int old_m16 = old_flags & EF_MIPS_ARCH_ASE_M16;
- int new_m16 = new_flags & EF_MIPS_ARCH_ASE_M16;
- int micro_mis = old_m16 && new_micro;
- int m16_mis = old_micro && new_m16;
+ elf_flags_init (obfd) = TRUE;
+ elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags;
+ elf_elfheader (obfd)->e_ident[EI_CLASS]
+ = elf_elfheader (ibfd)->e_ident[EI_CLASS];
- if (m16_mis || micro_mis)
+ if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
+ && (bfd_get_arch_info (obfd)->the_default
+ || mips_mach_extends_p (bfd_get_mach (obfd),
+ bfd_get_mach (ibfd))))
{
- (*_bfd_error_handler)
- (_("%B: ASE mismatch: linking %s module with previous %s modules"),
- ibfd,
- m16_mis ? "MIPS16" : "microMIPS",
- m16_mis ? "microMIPS" : "MIPS16");
- ok = FALSE;
- }
+ if (! bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
+ bfd_get_mach (ibfd)))
+ return FALSE;
- elf_elfheader (obfd)->e_flags |= new_flags & EF_MIPS_ARCH_ASE;
+ /* Update the ABI flags isa_level, isa_rev and isa_ext fields. */
+ update_mips_abiflags_isa (obfd, &out_tdata->abiflags);
+ }
- new_flags &= ~ EF_MIPS_ARCH_ASE;
- old_flags &= ~ EF_MIPS_ARCH_ASE;
+ ok = TRUE;
}
+ else
+ ok = mips_elf_merge_obj_e_flags (ibfd, obfd);
- /* Compare NaN encodings. */
- if ((new_flags & EF_MIPS_NAN2008) != (old_flags & EF_MIPS_NAN2008))
- {
- _bfd_error_handler (_("%B: linking %s module with previous %s modules"),
- ibfd,
- (new_flags & EF_MIPS_NAN2008
- ? "-mnan=2008" : "-mnan=legacy"),
- (old_flags & EF_MIPS_NAN2008
- ? "-mnan=2008" : "-mnan=legacy"));
- ok = FALSE;
- new_flags &= ~EF_MIPS_NAN2008;
- old_flags &= ~EF_MIPS_NAN2008;
- }
+ ok = mips_elf_merge_obj_attributes (ibfd, obfd) && ok;
- /* Warn about any other mismatches */
- if (new_flags != old_flags)
- {
- (*_bfd_error_handler)
- (_("%B: uses different e_flags (0x%lx) fields than previous modules (0x%lx)"),
- ibfd, (unsigned long) new_flags,
- (unsigned long) old_flags);
- ok = FALSE;
- }
+ ok = mips_elf_merge_obj_abiflags (ibfd, obfd) && ok;
- if (! ok)
+ if (!ok)
{
bfd_set_error (bfd_error_bad_value);
return FALSE;
return "MIPS_HIPAGENO";
case DT_MIPS_RLD_MAP:
return "MIPS_RLD_MAP";
+ case DT_MIPS_RLD_MAP_REL:
+ return "MIPS_RLD_MAP_REL";
case DT_MIPS_DELTA_CLASS:
return "MIPS_DELTA_CLASS";
case DT_MIPS_DELTA_CLASS_NO:
}
}
+/* Return the meaning of Tag_GNU_MIPS_ABI_FP value FP, or null if
+ not known. */
+
+const char *
+_bfd_mips_fp_abi_string (int fp)
+{
+ switch (fp)
+ {
+ /* These strings aren't translated because they're simply
+ option lists. */
+ case Val_GNU_MIPS_ABI_FP_DOUBLE:
+ return "-mdouble-float";
+
+ case Val_GNU_MIPS_ABI_FP_SINGLE:
+ return "-msingle-float";
+
+ case Val_GNU_MIPS_ABI_FP_SOFT:
+ return "-msoft-float";
+
+ case Val_GNU_MIPS_ABI_FP_OLD_64:
+ return _("-mips32r2 -mfp64 (12 callee-saved)");
+
+ case Val_GNU_MIPS_ABI_FP_XX:
+ return "-mfpxx";
+
+ case Val_GNU_MIPS_ABI_FP_64:
+ return "-mgp32 -mfp64";
+
+ case Val_GNU_MIPS_ABI_FP_64A:
+ return "-mgp32 -mfp64 -mno-odd-spreg";
+
+ default:
+ return 0;
+ }
+}
+
+static void
+print_mips_ases (FILE *file, unsigned int mask)
+{
+ if (mask & AFL_ASE_DSP)
+ fputs ("\n\tDSP ASE", file);
+ if (mask & AFL_ASE_DSPR2)
+ fputs ("\n\tDSP R2 ASE", file);
+ if (mask & AFL_ASE_EVA)
+ fputs ("\n\tEnhanced VA Scheme", file);
+ if (mask & AFL_ASE_MCU)
+ fputs ("\n\tMCU (MicroController) ASE", file);
+ if (mask & AFL_ASE_MDMX)
+ fputs ("\n\tMDMX ASE", file);
+ if (mask & AFL_ASE_MIPS3D)
+ fputs ("\n\tMIPS-3D ASE", file);
+ if (mask & AFL_ASE_MT)
+ fputs ("\n\tMT ASE", file);
+ if (mask & AFL_ASE_SMARTMIPS)
+ fputs ("\n\tSmartMIPS ASE", file);
+ if (mask & AFL_ASE_VIRT)
+ fputs ("\n\tVZ ASE", file);
+ if (mask & AFL_ASE_MSA)
+ fputs ("\n\tMSA ASE", file);
+ if (mask & AFL_ASE_MIPS16)
+ fputs ("\n\tMIPS16 ASE", file);
+ if (mask & AFL_ASE_MICROMIPS)
+ fputs ("\n\tMICROMIPS ASE", file);
+ if (mask & AFL_ASE_XPA)
+ fputs ("\n\tXPA ASE", file);
+ if (mask == 0)
+ fprintf (file, "\n\t%s", _("None"));
+ else if ((mask & ~AFL_ASE_MASK) != 0)
+ fprintf (stdout, "\n\t%s (%x)", _("Unknown"), mask & ~AFL_ASE_MASK);
+}
+
+static void
+print_mips_isa_ext (FILE *file, unsigned int isa_ext)
+{
+ switch (isa_ext)
+ {
+ case 0:
+ fputs (_("None"), file);
+ break;
+ case AFL_EXT_XLR:
+ fputs ("RMI XLR", file);
+ break;
+ case AFL_EXT_OCTEON3:
+ fputs ("Cavium Networks Octeon3", file);
+ break;
+ case AFL_EXT_OCTEON2:
+ fputs ("Cavium Networks Octeon2", file);
+ break;
+ case AFL_EXT_OCTEONP:
+ fputs ("Cavium Networks OcteonP", file);
+ break;
+ case AFL_EXT_LOONGSON_3A:
+ fputs ("Loongson 3A", file);
+ break;
+ case AFL_EXT_OCTEON:
+ fputs ("Cavium Networks Octeon", file);
+ break;
+ case AFL_EXT_5900:
+ fputs ("Toshiba R5900", file);
+ break;
+ case AFL_EXT_4650:
+ fputs ("MIPS R4650", file);
+ break;
+ case AFL_EXT_4010:
+ fputs ("LSI R4010", file);
+ break;
+ case AFL_EXT_4100:
+ fputs ("NEC VR4100", file);
+ break;
+ case AFL_EXT_3900:
+ fputs ("Toshiba R3900", file);
+ break;
+ case AFL_EXT_10000:
+ fputs ("MIPS R10000", file);
+ break;
+ case AFL_EXT_SB1:
+ fputs ("Broadcom SB-1", file);
+ break;
+ case AFL_EXT_4111:
+ fputs ("NEC VR4111/VR4181", file);
+ break;
+ case AFL_EXT_4120:
+ fputs ("NEC VR4120", file);
+ break;
+ case AFL_EXT_5400:
+ fputs ("NEC VR5400", file);
+ break;
+ case AFL_EXT_5500:
+ fputs ("NEC VR5500", file);
+ break;
+ case AFL_EXT_LOONGSON_2E:
+ fputs ("ST Microelectronics Loongson 2E", file);
+ break;
+ case AFL_EXT_LOONGSON_2F:
+ fputs ("ST Microelectronics Loongson 2F", file);
+ break;
+ default:
+ fprintf (file, "%s (%d)", _("Unknown"), isa_ext);
+ break;
+ }
+}
+
+static void
+print_mips_fp_abi_value (FILE *file, int val)
+{
+ switch (val)
+ {
+ case Val_GNU_MIPS_ABI_FP_ANY:
+ fprintf (file, _("Hard or soft float\n"));
+ break;
+ case Val_GNU_MIPS_ABI_FP_DOUBLE:
+ fprintf (file, _("Hard float (double precision)\n"));
+ break;
+ case Val_GNU_MIPS_ABI_FP_SINGLE:
+ fprintf (file, _("Hard float (single precision)\n"));
+ break;
+ case Val_GNU_MIPS_ABI_FP_SOFT:
+ fprintf (file, _("Soft float\n"));
+ break;
+ case Val_GNU_MIPS_ABI_FP_OLD_64:
+ fprintf (file, _("Hard float (MIPS32r2 64-bit FPU 12 callee-saved)\n"));
+ break;
+ case Val_GNU_MIPS_ABI_FP_XX:
+ fprintf (file, _("Hard float (32-bit CPU, Any FPU)\n"));
+ break;
+ case Val_GNU_MIPS_ABI_FP_64:
+ fprintf (file, _("Hard float (32-bit CPU, 64-bit FPU)\n"));
+ break;
+ case Val_GNU_MIPS_ABI_FP_64A:
+ fprintf (file, _("Hard float compat (32-bit CPU, 64-bit FPU)\n"));
+ break;
+ default:
+ fprintf (file, "??? (%d)\n", val);
+ break;
+ }
+}
+
+static int
+get_mips_reg_size (int reg_size)
+{
+ return (reg_size == AFL_REG_NONE) ? 0
+ : (reg_size == AFL_REG_32) ? 32
+ : (reg_size == AFL_REG_64) ? 64
+ : (reg_size == AFL_REG_128) ? 128
+ : -1;
+}
+
bfd_boolean
_bfd_mips_elf_print_private_bfd_data (bfd *abfd, void *ptr)
{
fprintf (file, " [mips32r2]");
else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_64R2)
fprintf (file, " [mips64r2]");
+ else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_32R6)
+ fprintf (file, " [mips32r6]");
+ else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_64R6)
+ fprintf (file, " [mips64r6]");
else
fprintf (file, _(" [unknown ISA]"));
fprintf (file, " [nan2008]");
if (elf_elfheader (abfd)->e_flags & EF_MIPS_FP64)
- fprintf (file, " [fp64]");
+ fprintf (file, " [old fp64]");
if (elf_elfheader (abfd)->e_flags & EF_MIPS_32BITMODE)
fprintf (file, " [32bitmode]");
fputc ('\n', file);
+ if (mips_elf_tdata (abfd)->abiflags_valid)
+ {
+ Elf_Internal_ABIFlags_v0 *abiflags = &mips_elf_tdata (abfd)->abiflags;
+ fprintf (file, "\nMIPS ABI Flags Version: %d\n", abiflags->version);
+ fprintf (file, "\nISA: MIPS%d", abiflags->isa_level);
+ if (abiflags->isa_rev > 1)
+ fprintf (file, "r%d", abiflags->isa_rev);
+ fprintf (file, "\nGPR size: %d",
+ get_mips_reg_size (abiflags->gpr_size));
+ fprintf (file, "\nCPR1 size: %d",
+ get_mips_reg_size (abiflags->cpr1_size));
+ fprintf (file, "\nCPR2 size: %d",
+ get_mips_reg_size (abiflags->cpr2_size));
+ fputs ("\nFP ABI: ", file);
+ print_mips_fp_abi_value (file, abiflags->fp_abi);
+ fputs ("ISA Extension: ", file);
+ print_mips_isa_ext (file, abiflags->isa_ext);
+ fputs ("\nASEs:", file);
+ print_mips_ases (file, abiflags->ases);
+ fprintf (file, "\nFLAGS 1: %8.8lx", abiflags->flags1);
+ fprintf (file, "\nFLAGS 2: %8.8lx", abiflags->flags2);
+ fputc ('\n', file);
+ }
+
return TRUE;
}
if (htab->use_plts_and_copy_relocs && !htab->is_vxworks)
i_ehdrp->e_ident[EI_ABIVERSION] = 1;
}
+
+ _bfd_elf_post_process_headers (abfd, link_info);
+
+ if (mips_elf_tdata (abfd)->abiflags.fp_abi == Val_GNU_MIPS_ABI_FP_64
+ || mips_elf_tdata (abfd)->abiflags.fp_abi == Val_GNU_MIPS_ABI_FP_64A)
+ i_ehdrp->e_ident[EI_ABIVERSION] = 3;
+
+ if (elf_stack_flags (abfd) && !(elf_stack_flags (abfd) & PF_X))
+ i_ehdrp->e_ident[EI_ABIVERSION] = 5;
+}
+
+int
+_bfd_mips_elf_compact_eh_encoding (struct bfd_link_info *link_info ATTRIBUTE_UNUSED)
+{
+ return DW_EH_PE_pcrel | DW_EH_PE_sdata4;
+}
+
+/* Return the opcode for can't unwind. */
+
+int
+_bfd_mips_elf_cant_unwind_opcode (struct bfd_link_info *link_info ATTRIBUTE_UNUSED)
+{
+ return COMPACT_EH_CANT_UNWIND_OPCODE;
}
projects / deliverable / binutils-gdb.git / blobdiff