+++ /dev/null
---- a/bfd/elf32-mips.c
-+++ b/bfd/elf32-mips.c
-@@ -1663,6 +1663,15 @@ static const struct ecoff_debug_swap mip
- #define elf_backend_plt_readonly 1
- #define elf_backend_plt_sym_val _bfd_mips_elf_plt_sym_val
-
-+/* Most MIPS ELF files do not contain a traditional PLT; only VxWorks
-+ and non-PIC dynamic executables do. These settings only affect
-+ _bfd_elf_create_dynamic_sections, which is only called when we
-+ do want a traditional PLT. */
-+#undef elf_backend_want_plt_sym
-+#define elf_backend_want_plt_sym 1
-+#undef elf_backend_plt_readonly
-+#define elf_backend_plt_readonly 1
-+
- #define elf_backend_discard_info _bfd_mips_elf_discard_info
- #define elf_backend_ignore_discarded_relocs \
- _bfd_mips_elf_ignore_discarded_relocs
-@@ -1687,6 +1696,8 @@ static const struct ecoff_debug_swap mip
- #define bfd_elf32_bfd_print_private_bfd_data \
- _bfd_mips_elf_print_private_bfd_data
-
-+#define elf_backend_plt_sym_val _bfd_mips_elf_plt_sym_val
-+
- /* Support for SGI-ish mips targets. */
- #define TARGET_LITTLE_SYM bfd_elf32_littlemips_vec
- #define TARGET_LITTLE_NAME "elf32-littlemips"
-@@ -1790,6 +1801,7 @@ mips_vxworks_final_write_processing (bfd
- #undef elf_backend_additional_program_headers
- #undef elf_backend_modify_segment_map
- #undef elf_backend_symbol_processing
-+#undef elf_backend_plt_sym_val
- /* NOTE: elf_backend_rela_normal is not defined for MIPS. */
-
- #include "elf32-target.h"
---- a/bfd/elfxx-mips.c
-+++ b/bfd/elfxx-mips.c
-@@ -694,6 +694,11 @@ static bfd *reldyn_sorting_bfd;
- /* Nonzero if ABFD is using NewABI conventions. */
- #define NEWABI_P(abfd) (ABI_N32_P (abfd) || ABI_64_P (abfd))
-
-+/* Nonzero if ABFD is a non-PIC object. */
-+#define NON_PIC_P(abfd) \
-+ (((elf_elfheader (abfd)->e_flags & EF_MIPS_PIC) == 0) \
-+ && ((elf_elfheader (abfd)->e_flags & EF_MIPS_CPIC) == EF_MIPS_CPIC))
-+
- /* The IRIX compatibility level we are striving for. */
- #define IRIX_COMPAT(abfd) \
- (get_elf_backend_data (abfd)->elf_backend_mips_irix_compat (abfd))
-@@ -706,6 +711,9 @@ static bfd *reldyn_sorting_bfd;
- #define MIPS_ELF_OPTIONS_SECTION_NAME(abfd) \
- (NEWABI_P (abfd) ? ".MIPS.options" : ".options")
-
-+/* The name of the section holding non-PIC to PIC call stubs. */
-+#define NON_PIC_TO_PIC_STUB_SECTION_NAME ".MIPS.pic_stubs"
-+
- /* True if NAME is the recognized name of any SHT_MIPS_OPTIONS section.
- Some IRIX system files do not use MIPS_ELF_OPTIONS_SECTION_NAME. */
- #define MIPS_ELF_OPTIONS_SECTION_NAME_P(NAME) \
-@@ -7619,7 +7627,9 @@ _bfd_mips_elf_check_relocs (bfd *abfd, s
-
- /* We need a stub, not a plt entry for the undefined
- function. But we record it as if it needs plt. See
-- _bfd_elf_adjust_dynamic_symbol. */
-+ _bfd_elf_adjust_dynamic_symbol. Note that these relocations
-+ are always used for PIC calls, even when using the new
-+ non-PIC ABI. */
- h->needs_plt = 1;
- h->type = STT_FUNC;
- }
-@@ -7725,6 +7735,8 @@ _bfd_mips_elf_check_relocs (bfd *abfd, s
- case R_MIPS_32:
- case R_MIPS_REL32:
- case R_MIPS_64:
-+ if (h != NULL)
-+ h->non_got_ref = TRUE;
- /* In VxWorks executables, references to external symbols
- are handled using copy relocs or PLT stubs, so there's
- no need to add a .rela.dyn entry for this relocation. */
-@@ -7780,11 +7792,21 @@ _bfd_mips_elf_check_relocs (bfd *abfd, s
- case R_MIPS_GPREL16:
- case R_MIPS_LITERAL:
- case R_MIPS_GPREL32:
-+ if (h != NULL
-+ && (r_type == R_MIPS_GPREL16 || r_type == R_MIPS_GPREL32))
-+ h->non_got_ref = TRUE;
-+
- if (SGI_COMPAT (abfd))
- mips_elf_hash_table (info)->compact_rel_size +=
- sizeof (Elf32_External_crinfo);
- break;
-
-+ case R_MIPS_HI16:
-+ case R_MIPS_LO16:
-+ if (h != NULL && strcmp (h->root.root.string, "_gp_disp") != 0)
-+ h->non_got_ref = TRUE;
-+ break;
-+
- /* This relocation describes the C++ object vtable hierarchy.
- Reconstruct it for later use during GC. */
- case R_MIPS_GNU_VTINHERIT:
-@@ -7807,20 +7829,20 @@ _bfd_mips_elf_check_relocs (bfd *abfd, s
-
- /* We must not create a stub for a symbol that has relocations
- related to taking the function's address. This doesn't apply to
-- VxWorks, where CALL relocs refer to a .got.plt entry instead of
-- a normal .got entry. */
-+ VxWorks or the non-PIC ABI, where CALL relocs refer to a
-+ .got.plt entry instead of a normal .got entry. */
- if (!htab->is_vxworks && h != NULL)
- switch (r_type)
- {
-- default:
-- ((struct mips_elf_link_hash_entry *) h)->no_fn_stub = TRUE;
-- break;
- case R_MIPS16_CALL16:
- case R_MIPS_CALL16:
- case R_MIPS_CALL_HI16:
- case R_MIPS_CALL_LO16:
- case R_MIPS_JALR:
- break;
-+ default:
-+ ((struct mips_elf_link_hash_entry *) h)->no_fn_stub = TRUE;
-+ break;
- }
-
- /* See if this reloc would need to refer to a MIPS16 hard-float stub,
-@@ -12514,7 +12536,9 @@ _bfd_mips_elf_merge_private_bfd_data (bf
- break;
- }
- }
-- if (null_input_bfd)
-+ /* Dynamic objects normally have no sections, and do not reach
-+ here - but they might if used as DYNOBJ. */
-+ if (null_input_bfd || (ibfd->flags & DYNAMIC) != 0)
- return TRUE;
-
- ok = TRUE;
---- a/bfd/elfxx-mips.h
-+++ b/bfd/elfxx-mips.h
-@@ -63,6 +63,9 @@ extern bfd_boolean _bfd_mips_elf_finish_
- extern bfd_boolean _bfd_mips_vxworks_finish_dynamic_symbol
- (bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
- Elf_Internal_Sym *);
-+extern bfd_boolean _bfd_mips_nonpic_finish_dynamic_symbol
-+ (bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
-+ Elf_Internal_Sym *);
- extern bfd_boolean _bfd_mips_elf_finish_dynamic_sections
- (bfd *, struct bfd_link_info *);
- extern void _bfd_mips_elf_final_write_processing
-@@ -153,6 +156,15 @@ extern const struct bfd_elf_special_sect
-
- extern bfd_boolean _bfd_mips_elf_common_definition (Elf_Internal_Sym *);
-
-+extern bfd_vma _bfd_mips_elf_plt_sym_val
-+ (bfd_vma, const asection *, const arelent *);
-+extern void _bfd_mips_elf_begin_write_processing
-+ (bfd *abfd, struct bfd_link_info *link_info);
-+extern bfd_boolean bfd_mips_elf_maybe_create_non_pic_to_pic_stubs_section
-+ (struct bfd_link_info *);
-+extern void _bfd_mips_post_process_headers
-+ (bfd *abfd, struct bfd_link_info *link_info);
-+
- #define elf_backend_common_definition _bfd_mips_elf_common_definition
- #define elf_backend_name_local_section_symbols \
- _bfd_mips_elf_name_local_section_symbols
---- a/gas/config/tc-mips.c
-+++ b/gas/config/tc-mips.c
-@@ -1891,6 +1891,12 @@ md_begin (void)
- as_bad (_("-G may not be used in position-independent code"));
- g_switch_value = 0;
- }
-+ else if (mips_abicalls)
-+ {
-+ if (g_switch_seen && g_switch_value != 0)
-+ as_bad (_("-G may not be used with abicalls"));
-+ g_switch_value = 0;
-+ }
-
- if (! bfd_set_arch_mach (stdoutput, bfd_arch_mips, file_mips_arch))
- as_warn (_("Could not set architecture and machine"));
-@@ -11264,6 +11264,7 @@
- OPTION_PDR,
- OPTION_NO_PDR,
- OPTION_MVXWORKS_PIC,
-+ OPTION_NON_PIC_ABICALLS,
- #endif /* OBJ_ELF */
- OPTION_END_OF_ENUM
- };
-@@ -11365,6 +11372,7 @@ struct option md_longopts[] =
- {"mpdr", no_argument, NULL, OPTION_PDR},
- {"mno-pdr", no_argument, NULL, OPTION_NO_PDR},
- {"mvxworks-pic", no_argument, NULL, OPTION_MVXWORKS_PIC},
-+ {"mnon-pic-abicalls", no_argument, NULL, OPTION_NON_PIC_ABICALLS},
- #endif /* OBJ_ELF */
-
- {NULL, no_argument, NULL, 0}
-@@ -11783,6 +11791,11 @@ md_parse_option (int c, char *arg)
- case OPTION_MVXWORKS_PIC:
- mips_pic = VXWORKS_PIC;
- break;
-+
-+ case OPTION_NON_PIC_ABICALLS:
-+ mips_pic = NO_PIC;
-+ mips_abicalls = TRUE;
-+ break;
- #endif /* OBJ_ELF */
-
- default:
projects / openwrt / svn-archive / openwrt.git / commitdiff