binutils-gdb/ld/testsuite/ld-ifunc/ifunc-21-x86-64.d

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Add -mrelax-relocations= to x86 assembler The x86 relax relocations introduced in binutils 2.26 aren't supported by linker on Solaris older than Solaris 12. To use x86 assembler with older Solaris linker, this patch adds 1. A command line option -mrelax-relocations= to x86 assembler to control whether to generate relax relocations. 2. A configure option --enable-x86-relax-relocations to decide whether x86 assembler should generate relax relocations by default. It is defaulted to yes, except for x86 Solaris targets older than Solaris 12. gas/ PR gas/19520 * NEWS: Mention new command line option -mrelax-relocations and new configure option --enable-x86-relax-relocations for x86 target. * config.in: Regenerated. * configure.ac: Add --enable-x86-relax-relocations. (ac_default_x86_relax_relocations): New. Default to 1 except for x86 Solaris targets older than Solaris 12. (DEFAULT_GENERATE_X86_RELAX_RELOCATIONS): Define. * configure: Likewise. * config/tc-i386.c (generate_relax_relocations): New. (OPTION_MRELAX_RELOCATIONS): Likewise. (output_disp): Don't generate relax relocations if generate_relax_relocations is 0. (md_longopts): Add -mrelax-relocations. (md_show_usage): Likewise. (md_parse_option): Handle OPTION_MRELAX_RELOCATIONS. * doc/c-i386.texi: Document -mrelax-relocations=. * testsuite/gas/i386/got-no-relax.d: New file. * testsuite/gas/i386/x86-64-gotpcrel-no-relax.d: Likewise. * testsuite/gas/i386/got.d: Pass -mrelax-relocations=yes to as. * testsuite/gas/i386/localpic.d: Likewise. * testsuite/gas/i386/mixed-mode-reloc32.d: Likewise. * testsuite/gas/i386/reloc32.d: Likewise. * testsuite/gas/i386/x86-64-gotpcrel.d: Likewise. * testsuite/gas/i386/x86-64-localpic.d: Likewise. * testsuite/gas/i386/ilp32/x86-64-gotpcrel.d: Likewise. * testsuite/gas/i386/ilp32/x86-64-localpic.d: Likewise. * testsuite/gas/i386/i386.exp: Run got-no-relax and x86-64-gotpcrel-no-relax. ld/ PR gas/19520 * testsuite/ld-i386/branch1.d: Pass -mrelax-relocations=yes to as. * testsuite/ld-i386/call1.d: Likewise. * testsuite/ld-i386/call2.d: Likewise. * testsuite/ld-i386/call3a.d: Likewise. * testsuite/ld-i386/call3b.d: Likewise. * testsuite/ld-i386/call3c.d: Likewise. * testsuite/ld-i386/call3d.d: Likewise. * testsuite/ld-i386/call3e.d: Likewise. * testsuite/ld-i386/call3f.d: Likewise. * testsuite/ld-i386/call3g.d: Likewise. * testsuite/ld-i386/call3h.d: Likewise. * testsuite/ld-i386/jmp1.d: Likewise. * testsuite/ld-i386/jmp2.d: Likewise. * testsuite/ld-i386/lea1c.d: Likewise. * testsuite/ld-i386/load1.d: Likewise. * testsuite/ld-i386/load2.d: Likewise. * testsuite/ld-i386/load3.d: Likewise. * testsuite/ld-i386/load4a.d: Likewise. * testsuite/ld-i386/load5a.d: Likewise. * testsuite/ld-i386/mov2b.d: Likewise. * testsuite/ld-i386/mov3.d: Likewise. * testsuite/ld-ifunc/ifunc-21-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-22-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-5r-local-x86-64.d: Likewise. * testsuite/ld-x86-64/call1a.d: Likewise. * testsuite/ld-x86-64/call1b.d: Likewise. * testsuite/ld-x86-64/call1c.d: Likewise. * testsuite/ld-x86-64/call1d.d: Likewise. * testsuite/ld-x86-64/call1e.d: Likewise. * testsuite/ld-x86-64/call1f.d: Likewise. * testsuite/ld-x86-64/call1h.d: Likewise. * testsuite/ld-x86-64/call1i.d: Likewise. * testsuite/ld-x86-64/load1a.d: Likewise. * testsuite/ld-x86-64/load1b.d: Likewise. * testsuite/ld-i386/got1a.S: Load GOT into %ecx and use it. * testsuite/ld-i386/got1.dd: Updated. * testsuite/ld-i386/got1d.S (1): Removed. * testsuite/ld-i386/i386.exp: Add -Wa,-mrelax-relocations=yes. * testsuite/ld-x86-64/x86-64.exp: Likewise.
2016-02-04 00:25:15 +08:00
#as: --64 -mrelax-relocations=yes
#ld: -melf_x86_64 -z max-page-size=0x200000 -z noseparate-code
#objdump: -dw
#target: x86_64-*-*
.*: +file format .*
Optimize x86 GOT32X/GOTPCRELX relocations R_386_GOT32X, R_X86_64_GOTPCRELX and R_X86_64_REX_GOTPCRELX relocations retrieve the symbol address via its GOT slot. If the symbol address is known at the link-time, we can use it directly by changing instruction encoding. Indirect branch can only be converted to PC relative direct branch. MOV can be changed to LEA or encoded differently with signed address. The subset of binary operations can be encoded only with signed address. If undefined weak symbol is resolved to zero link-time, we can use it as address. Zero addresss can't used with PC relative direct branch when PIC is true since the current PC is unknown. In 64-bit, 32-bit relocation for PC relatiave direct branch to zero may also overflow. If this optimization causes relocation overflow, --no-relax can be used to work around it. bfd/ PR ld/19609 * elf32-i386.c (elf_i386_convert_load): Convert to R_386_32 for load with locally bound symbols if PIC is false or there is no base register. Optimize branch to 0 if PIC is false. (elf_i386_relocate_section): Don't generate dynamic relocations against undefined weak symbols if PIC is false. * elf64-x86-64.c (elf_x86_64_convert_load): Disable optimization if we can't estimate relocation overflow with --no-relax. Convert to R_X86_64_32S/R_X86_64_32 for load with locally bound symbols if PIC is false. Optimize branch to 0 if PIC is false. (elf_x86_64_relocate_section): Don't generate dynamic relocations against undefined weak symbols if PIC is false. ld/ PR ld/19609 * testsuite/ld-i386/got1.dd: Updated. * testsuite/ld-i386/lea1c.d: Likewise. * testsuite/ld-i386/load1-nacl.d: Likewise. * testsuite/ld-i386/load1.d: Likewise. * testsuite/ld-i386/load4b.d: Likewise. * testsuite/ld-i386/load5b.d: Likewise. * testsuite/ld-i386/mov1b.d: Likewise. * testsuite/ld-x86-64/mov1b.d: Likewise. * testsuite/ld-x86-64/mov1d.d: Likewise. * testsuite/ld-ifunc/ifunc-21-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-21-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-22-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-22-x86-64.d: Likewise. * testsuite/ld-x86-64/gotpcrel1.dd: Likewise. * testsuite/ld-x86-64/lea1a.d: Likewise. * testsuite/ld-x86-64/lea1b.d: Likewise. * testsuite/ld-x86-64/lea1c.d: Likewise. * testsuite/ld-x86-64/lea1d.d: Likewise. * testsuite/ld-x86-64/lea1e.d: Likewise. * testsuite/ld-x86-64/lea1f.d: Likewise. * testsuite/ld-x86-64/mov1b.d: Likewise. * testsuite/ld-x86-64/mov1d.d: Likewise. * testsuite/ld-x86-64/pr13082-3b.d: Likewise. * testsuite/ld-x86-64/pr13082-4b.d: Likewise. * testsuite/ld-x86-64/lea1.s: Add tests for 32-bit registers. * testsuite/ld-i386/pr19609-1.s: New file. * testsuite/ld-i386/pr19609-1a.d: Likewise. * testsuite/ld-i386/pr19609-1b.d: Likewise. * testsuite/ld-i386/pr19609-1c.d: Likewise. * testsuite/ld-i386/pr19609-1d.d: Likewise. * testsuite/ld-i386/pr19609-1e.d: Likewise. * testsuite/ld-i386/pr19609-1f.d: Likewise. * testsuite/ld-i386/pr19609-1g.d: Likewise. * testsuite/ld-i386/pr19609-1h.d: Likewise. * testsuite/ld-i386/pr19609-1i.d: Likewise. * testsuite/ld-i386/pr19609-2.s: Likewise. * testsuite/ld-i386/pr19609-2a.d: Likewise. * testsuite/ld-i386/pr19609-2b.d: Likewise. * testsuite/ld-i386/pr19609-2c.d: Likewise. * testsuite/ld-i386/undefweak.s: Likewise. * testsuite/ld-i386/undefweaka.d: Likewise. * testsuite/ld-i386/undefweakb.d: Likewise. * testsuite/ld-x86-64/pr13082-3c.d: Likewise. * testsuite/ld-x86-64/pr13082-3d.d: Likewise. * testsuite/ld-x86-64/pr19609-1.s: Likewise. * testsuite/ld-x86-64/pr19609-1a.d: Likewise. * testsuite/ld-x86-64/pr19609-1b.d: Likewise. * testsuite/ld-x86-64/pr19609-1c.d: Likewise. * testsuite/ld-x86-64/pr19609-1d.d: Likewise. * testsuite/ld-x86-64/pr19609-1e.d: Likewise. * testsuite/ld-x86-64/pr19609-1f.d: Likewise. * testsuite/ld-x86-64/pr19609-1g.d: Likewise. * testsuite/ld-x86-64/pr19609-1h.d: Likewise. * testsuite/ld-x86-64/pr19609-1i.d: Likewise. * testsuite/ld-x86-64/pr19609-1j.d: Likewise. * testsuite/ld-x86-64/pr19609-1k.d: Likewise. * testsuite/ld-x86-64/pr19609-1l.d: Likewise. * testsuite/ld-x86-64/pr19609-1m.d: Likewise. * testsuite/ld-x86-64/pr19609-2.s: Likewise. * testsuite/ld-x86-64/pr19609-2a.d: Likewise. * testsuite/ld-x86-64/pr19609-2b.d: Likewise. * testsuite/ld-x86-64/pr19609-2c.d: Likewise. * testsuite/ld-x86-64/pr19609-2d.d: Likewise. * testsuite/ld-x86-64/pr19609-3.s: Likewise. * testsuite/ld-x86-64/pr19609-3a.d: Likewise. * testsuite/ld-x86-64/pr19609-3b.d: Likewise. * testsuite/ld-x86-64/pr19609-4.s: Likewise. * testsuite/ld-x86-64/pr19609-4a.d: Likewise. * testsuite/ld-x86-64/pr19609-4b.d: Likewise. * testsuite/ld-x86-64/pr19609-4c.d: Likewise. * testsuite/ld-x86-64/pr19609-4d.d: Likewise. * testsuite/ld-x86-64/pr19609-4e.d: Likewise. * testsuite/ld-x86-64/pr19609-5.s: Likewise. * testsuite/ld-x86-64/pr19609-5a.d: Likewise. * testsuite/ld-x86-64/pr19609-5b.d: Likewise. * testsuite/ld-x86-64/pr19609-5c.d: Likewise. * testsuite/ld-x86-64/pr19609-5d.d: Likewise. * testsuite/ld-x86-64/pr19609-5e.d: Likewise. * testsuite/ld-x86-64/pr19609-6.s: Likewise. * testsuite/ld-x86-64/pr19609-6a.d: Likewise. * testsuite/ld-x86-64/pr19609-6b.d: Likewise. * testsuite/ld-x86-64/pr19609-6c.d: Likewise. * testsuite/ld-x86-64/pr19609-6d.d: Likewise. * testsuite/ld-x86-64/pr19609-7.s: Likewise. * testsuite/ld-x86-64/pr19609-7a.d: Likewise. * testsuite/ld-x86-64/pr19609-7b.d: Likewise. * testsuite/ld-x86-64/pr19609-7c.d: Likewise. * testsuite/ld-x86-64/pr19609-7d.d: Likewise. * testsuite/ld-i386/i386.exp: Run undefweak tests and tests for PR ld/19609. * testsuite/ld-x86-64/x86-64.exp: Run pr13082-3c, pr13082-3d and tests for PR ld/19609.
2016-02-27 01:38:08 +08:00
Don't generate PLT for IFUNC GOT/pointer reference If a backend supports it, PLT entry isn't needed when all references to a STT_GNU_IFUNC symbols are done via GOT or static function pointers. For GOT entries, We generate dynamic R_*_GLOB_DAT relocations for preemptable symbols and R_*_IRELATIVE relocations for non-preemptable symbols to update them with real function address. For static pointer pointers, we generate dynamic pointer relocations and store them in: 1. .rel[a].ifunc section in PIC object. 2. .rel[a].got section in dynamic executable. 3. .rel[a].iplt section in static executable. We don't allocate GOT entry if it isn't used. bfd/ PR ld/20253 * elf-bfd.h (_bfd_elf_allocate_ifunc_dyn_relocs): Add an bfd_boolean argument. * elf-ifunc.c (_bfd_elf_create_ifunc_sections): Replace "shared object" with "PIC object" in comments. (_bfd_elf_allocate_ifunc_dyn_relocs): Updated. Replace "shared object" with "PIC object" in comments. Avoid PLT if requested. Generate dynamic relocations for non-GOT references. Make room for the special first entry in PLT and allocate PLT entry only for PLT and PC-relative references. Store dynamic GOT relocations in .rel[a].iplt section for static executables. If PLT isn't used, always use GOT for symbol value. Don't allocate GOT entry if it isn't used. * elf32-i386.c (elf_i386_check_relocs): Increment PLT reference count only in the code section. Allocate dynamic pointer relocation against STT_GNU_IFUNC symbol in the non-code section. (elf_i386_adjust_dynamic_symbol): Increment PLT reference count only for PC-relative references. (elf_i386_allocate_dynrelocs): Pass TRUE to _bfd_elf_allocate_ifunc_dyn_relocs. (elf_i386_relocate_section): Allow R_386_GOT32/R_386_GOT32X relocations against STT_GNU_IFUNC symbols without PLT. Generate dynamic pointer relocation against STT_GNU_IFUNC symbol in the non-code section and store it in the proper REL section. Don't allow non-pointer relocation against STT_GNU_IFUNC symbol without PLT. (elf_i386_finish_dynamic_symbol): Generate dynamic R_386_IRELATIVE and R_386_GLOB_DAT GOT relocations against STT_GNU_IFUNC symbols without PLT. (elf_i386_finish_dynamic_sections): Don't handle local STT_GNU_IFUNC symbols here. (elf_i386_output_arch_local_syms): Handle local STT_GNU_IFUNC symbols here. (elf_backend_output_arch_local_syms): New. * elf32-x86-64.c (elf_i386_check_relocs): Increment PLT reference count only in the code section. Allocate dynamic pointer relocation against STT_GNU_IFUNC symbol in the non-code section. (elf_x86_64_adjust_dynamic_symbol): Increment PLT reference count only for PC-relative references. (elf_x86_64_allocate_dynrelocs): Pass TRUE to _bfd_elf_allocate_ifunc_dyn_relocs. (elf_x86_64_relocate_section): Allow R_X86_64_GOTPCREL, R_X86_64_GOTPCRELX, R_X86_64_REX_GOTPCRELX and R_X86_64_GOTPCREL64 relocations against STT_GNU_IFUNC symbols without PLT. Generate dynamic pointer relocation against STT_GNU_IFUNC symbol in the non-code section and store it in the proper RELA section. Don't allow non-pointer relocation against STT_GNU_IFUNC symbol without PLT. (elf_x86_64_finish_dynamic_symbol): Generate dynamic R_X86_64_IRELATIVE and R_X86_64_GLOB_DAT GOT relocations against STT_GNU_IFUNC symbols without PLT. (elf_x86_64_finish_dynamic_sections): Don't handle local STT_GNU_IFUNC symbols here. (elf_x86_64_output_arch_local_syms): Handle local STT_GNU_IFUNC symbols here. (elf_backend_output_arch_local_syms): New. * elfnn-aarch64.c (elfNN_aarch64_allocate_ifunc_dynrelocs): Pass FALSE to _bfd_elf_allocate_ifunc_dyn_relocs. ld/ PR ld/20253 * testsuite/ld-i386/i386.exp: Run PR ld/20253 tests. * testsuite/ld-i386/no-plt.exp: Likewise. * testsuite/ld-x86-64/no-plt.exp: Likewise. * testsuite/ld-i386/pr13302.d: Remove .rel.plt section. * testsuite/ld-ifunc/ifunc-13-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-13-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-15-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-15-x86-64.d: Likewise. * testsuite/ld-x86-64/pr13082-5a.d: Likewise. * testsuite/ld-x86-64/pr13082-5b.d: Likewise. * testsuite/ld-x86-64/pr13082-6a.d: Likewise. * testsuite/ld-x86-64/pr13082-6b.d: Likewise. * testsuite/ld-i386/pr20244-2a.d: Remove .plt section. * testsuite/ld-ifunc/ifunc-21-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-21-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-22-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-22-x86-64.d: Likewise. * testsuite/ld-i386/pr20244-2b.d: Updated. * testsuite/ld-i386/pr20244-2c.d: Likewise. * testsuite/ld-ifunc/ifunc-18a-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-18a-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-18b-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-18b-x86-64.d: Likewise. * testsuite/ld-i386/pr20253-1a.c: New file. * testsuite/ld-i386/pr20253-1b.S: Likewise. * testsuite/ld-i386/pr20253-1c.S: Likewise. * testsuite/ld-i386/pr20253-1d.S: Likewise. * testsuite/ld-i386/pr20253-2a.c: Likewise. * testsuite/ld-i386/pr20253-2b.S: Likewise. * testsuite/ld-i386/pr20253-2c.S: Likewise. * testsuite/ld-i386/pr20253-2d.S: Likewise. * testsuite/ld-i386/pr20253-3.d: Likewise. * testsuite/ld-i386/pr20253-3.s: Likewise. * testsuite/ld-i386/pr20253-4.s: Likewise. * testsuite/ld-i386/pr20253-4a.d: Likewise. * testsuite/ld-i386/pr20253-4b.d: Likewise. * testsuite/ld-i386/pr20253-4c.d: Likewise. * testsuite/ld-i386/pr20253-5.d: Likewise. * testsuite/ld-i386/pr20253-5.s: Likewise. * testsuite/ld-ifunc/ifunc-23-x86.s: Likewise. * testsuite/ld-ifunc/ifunc-23a-x86.d: Likewise. * testsuite/ld-ifunc/ifunc-23b-x86.d: Likewise. * testsuite/ld-ifunc/ifunc-23c-x86.d: Likewise. * testsuite/ld-ifunc/ifunc-24-x86.s: Likewise. * testsuite/ld-ifunc/ifunc-24a-x86.d: Likewise. * testsuite/ld-ifunc/ifunc-24b-x86.d: Likewise. * testsuite/ld-ifunc/ifunc-24c-x86.d: Likewise. * testsuite/ld-ifunc/ifunc-25-x86.s: Likewise. * testsuite/ld-ifunc/ifunc-25a-x86.d: Likewise. * testsuite/ld-ifunc/ifunc-25b-x86.d: Likewise. * testsuite/ld-ifunc/ifunc-25c-x86.d: Likewise. * testsuite/ld-x86-64/pr20253-1.s: Likewise. * testsuite/ld-x86-64/pr20253-1a.d: Likewise. * testsuite/ld-x86-64/pr20253-1b.d: Likewise. * testsuite/ld-x86-64/pr20253-1c.d: Likewise. * testsuite/ld-x86-64/pr20253-1d.d: Likewise. * testsuite/ld-x86-64/pr20253-1e.d: Likewise. * testsuite/ld-x86-64/pr20253-1f.d: Likewise. * testsuite/ld-x86-64/pr20253-1g.d: Likewise. * testsuite/ld-x86-64/pr20253-1h.d: Likewise. * testsuite/ld-x86-64/pr20253-1i.d: Likewise. * testsuite/ld-x86-64/pr20253-1j.d: Likewise. * testsuite/ld-x86-64/pr20253-1k.d: Likewise. * testsuite/ld-x86-64/pr20253-1l.d: Likewise. * testsuite/ld-x86-64/pr20253-2a.c: Likewise. * testsuite/ld-x86-64/pr20253-2b.S: Likewise. * testsuite/ld-x86-64/pr20253-2c.S: Likewise. * testsuite/ld-x86-64/pr20253-2d.S: Likewise. * testsuite/ld-x86-64/pr20253-3.d: Likewise. * testsuite/ld-x86-64/pr20253-3.s: Likewise. * testsuite/ld-x86-64/pr20253-4.s: Likewise. * testsuite/ld-x86-64/pr20253-4a.d: Likewise. * testsuite/ld-x86-64/pr20253-4b.d: Likewise. * testsuite/ld-x86-64/pr20253-4c.d: Likewise. * testsuite/ld-x86-64/pr20253-4d.d: Likewise. * testsuite/ld-x86-64/pr20253-4e.d: Likewise. * testsuite/ld-x86-64/pr20253-4f.d: Likewise. * testsuite/ld-x86-64/pr20253-5.s: Likewise. * testsuite/ld-x86-64/pr20253-5a.d: Likewise. * testsuite/ld-x86-64/pr20253-5b.d: Likewise. * testsuite/ld-ifunc/ifunc-18a-i386.d: Remove extra IRELATIVE relocation. * testsuite/ld-ifunc/ifunc-18a-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-18b-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-18b-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-18a.s: Fix a typo. * testsuite/ld-x86-64/x86-64.exp: Run pr20253-1 tests.
2016-06-19 00:16:52 +08:00
Disassembly of section .text:
Optimize x86 GOT32X/GOTPCRELX relocations R_386_GOT32X, R_X86_64_GOTPCRELX and R_X86_64_REX_GOTPCRELX relocations retrieve the symbol address via its GOT slot. If the symbol address is known at the link-time, we can use it directly by changing instruction encoding. Indirect branch can only be converted to PC relative direct branch. MOV can be changed to LEA or encoded differently with signed address. The subset of binary operations can be encoded only with signed address. If undefined weak symbol is resolved to zero link-time, we can use it as address. Zero addresss can't used with PC relative direct branch when PIC is true since the current PC is unknown. In 64-bit, 32-bit relocation for PC relatiave direct branch to zero may also overflow. If this optimization causes relocation overflow, --no-relax can be used to work around it. bfd/ PR ld/19609 * elf32-i386.c (elf_i386_convert_load): Convert to R_386_32 for load with locally bound symbols if PIC is false or there is no base register. Optimize branch to 0 if PIC is false. (elf_i386_relocate_section): Don't generate dynamic relocations against undefined weak symbols if PIC is false. * elf64-x86-64.c (elf_x86_64_convert_load): Disable optimization if we can't estimate relocation overflow with --no-relax. Convert to R_X86_64_32S/R_X86_64_32 for load with locally bound symbols if PIC is false. Optimize branch to 0 if PIC is false. (elf_x86_64_relocate_section): Don't generate dynamic relocations against undefined weak symbols if PIC is false. ld/ PR ld/19609 * testsuite/ld-i386/got1.dd: Updated. * testsuite/ld-i386/lea1c.d: Likewise. * testsuite/ld-i386/load1-nacl.d: Likewise. * testsuite/ld-i386/load1.d: Likewise. * testsuite/ld-i386/load4b.d: Likewise. * testsuite/ld-i386/load5b.d: Likewise. * testsuite/ld-i386/mov1b.d: Likewise. * testsuite/ld-x86-64/mov1b.d: Likewise. * testsuite/ld-x86-64/mov1d.d: Likewise. * testsuite/ld-ifunc/ifunc-21-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-21-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-22-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-22-x86-64.d: Likewise. * testsuite/ld-x86-64/gotpcrel1.dd: Likewise. * testsuite/ld-x86-64/lea1a.d: Likewise. * testsuite/ld-x86-64/lea1b.d: Likewise. * testsuite/ld-x86-64/lea1c.d: Likewise. * testsuite/ld-x86-64/lea1d.d: Likewise. * testsuite/ld-x86-64/lea1e.d: Likewise. * testsuite/ld-x86-64/lea1f.d: Likewise. * testsuite/ld-x86-64/mov1b.d: Likewise. * testsuite/ld-x86-64/mov1d.d: Likewise. * testsuite/ld-x86-64/pr13082-3b.d: Likewise. * testsuite/ld-x86-64/pr13082-4b.d: Likewise. * testsuite/ld-x86-64/lea1.s: Add tests for 32-bit registers. * testsuite/ld-i386/pr19609-1.s: New file. * testsuite/ld-i386/pr19609-1a.d: Likewise. * testsuite/ld-i386/pr19609-1b.d: Likewise. * testsuite/ld-i386/pr19609-1c.d: Likewise. * testsuite/ld-i386/pr19609-1d.d: Likewise. * testsuite/ld-i386/pr19609-1e.d: Likewise. * testsuite/ld-i386/pr19609-1f.d: Likewise. * testsuite/ld-i386/pr19609-1g.d: Likewise. * testsuite/ld-i386/pr19609-1h.d: Likewise. * testsuite/ld-i386/pr19609-1i.d: Likewise. * testsuite/ld-i386/pr19609-2.s: Likewise. * testsuite/ld-i386/pr19609-2a.d: Likewise. * testsuite/ld-i386/pr19609-2b.d: Likewise. * testsuite/ld-i386/pr19609-2c.d: Likewise. * testsuite/ld-i386/undefweak.s: Likewise. * testsuite/ld-i386/undefweaka.d: Likewise. * testsuite/ld-i386/undefweakb.d: Likewise. * testsuite/ld-x86-64/pr13082-3c.d: Likewise. * testsuite/ld-x86-64/pr13082-3d.d: Likewise. * testsuite/ld-x86-64/pr19609-1.s: Likewise. * testsuite/ld-x86-64/pr19609-1a.d: Likewise. * testsuite/ld-x86-64/pr19609-1b.d: Likewise. * testsuite/ld-x86-64/pr19609-1c.d: Likewise. * testsuite/ld-x86-64/pr19609-1d.d: Likewise. * testsuite/ld-x86-64/pr19609-1e.d: Likewise. * testsuite/ld-x86-64/pr19609-1f.d: Likewise. * testsuite/ld-x86-64/pr19609-1g.d: Likewise. * testsuite/ld-x86-64/pr19609-1h.d: Likewise. * testsuite/ld-x86-64/pr19609-1i.d: Likewise. * testsuite/ld-x86-64/pr19609-1j.d: Likewise. * testsuite/ld-x86-64/pr19609-1k.d: Likewise. * testsuite/ld-x86-64/pr19609-1l.d: Likewise. * testsuite/ld-x86-64/pr19609-1m.d: Likewise. * testsuite/ld-x86-64/pr19609-2.s: Likewise. * testsuite/ld-x86-64/pr19609-2a.d: Likewise. * testsuite/ld-x86-64/pr19609-2b.d: Likewise. * testsuite/ld-x86-64/pr19609-2c.d: Likewise. * testsuite/ld-x86-64/pr19609-2d.d: Likewise. * testsuite/ld-x86-64/pr19609-3.s: Likewise. * testsuite/ld-x86-64/pr19609-3a.d: Likewise. * testsuite/ld-x86-64/pr19609-3b.d: Likewise. * testsuite/ld-x86-64/pr19609-4.s: Likewise. * testsuite/ld-x86-64/pr19609-4a.d: Likewise. * testsuite/ld-x86-64/pr19609-4b.d: Likewise. * testsuite/ld-x86-64/pr19609-4c.d: Likewise. * testsuite/ld-x86-64/pr19609-4d.d: Likewise. * testsuite/ld-x86-64/pr19609-4e.d: Likewise. * testsuite/ld-x86-64/pr19609-5.s: Likewise. * testsuite/ld-x86-64/pr19609-5a.d: Likewise. * testsuite/ld-x86-64/pr19609-5b.d: Likewise. * testsuite/ld-x86-64/pr19609-5c.d: Likewise. * testsuite/ld-x86-64/pr19609-5d.d: Likewise. * testsuite/ld-x86-64/pr19609-5e.d: Likewise. * testsuite/ld-x86-64/pr19609-6.s: Likewise. * testsuite/ld-x86-64/pr19609-6a.d: Likewise. * testsuite/ld-x86-64/pr19609-6b.d: Likewise. * testsuite/ld-x86-64/pr19609-6c.d: Likewise. * testsuite/ld-x86-64/pr19609-6d.d: Likewise. * testsuite/ld-x86-64/pr19609-7.s: Likewise. * testsuite/ld-x86-64/pr19609-7a.d: Likewise. * testsuite/ld-x86-64/pr19609-7b.d: Likewise. * testsuite/ld-x86-64/pr19609-7c.d: Likewise. * testsuite/ld-x86-64/pr19609-7d.d: Likewise. * testsuite/ld-i386/i386.exp: Run undefweak tests and tests for PR ld/19609. * testsuite/ld-x86-64/x86-64.exp: Run pr13082-3c, pr13082-3d and tests for PR ld/19609.
2016-02-27 01:38:08 +08:00
Don't generate PLT for IFUNC GOT/pointer reference If a backend supports it, PLT entry isn't needed when all references to a STT_GNU_IFUNC symbols are done via GOT or static function pointers. For GOT entries, We generate dynamic R_*_GLOB_DAT relocations for preemptable symbols and R_*_IRELATIVE relocations for non-preemptable symbols to update them with real function address. For static pointer pointers, we generate dynamic pointer relocations and store them in: 1. .rel[a].ifunc section in PIC object. 2. .rel[a].got section in dynamic executable. 3. .rel[a].iplt section in static executable. We don't allocate GOT entry if it isn't used. bfd/ PR ld/20253 * elf-bfd.h (_bfd_elf_allocate_ifunc_dyn_relocs): Add an bfd_boolean argument. * elf-ifunc.c (_bfd_elf_create_ifunc_sections): Replace "shared object" with "PIC object" in comments. (_bfd_elf_allocate_ifunc_dyn_relocs): Updated. Replace "shared object" with "PIC object" in comments. Avoid PLT if requested. Generate dynamic relocations for non-GOT references. Make room for the special first entry in PLT and allocate PLT entry only for PLT and PC-relative references. Store dynamic GOT relocations in .rel[a].iplt section for static executables. If PLT isn't used, always use GOT for symbol value. Don't allocate GOT entry if it isn't used. * elf32-i386.c (elf_i386_check_relocs): Increment PLT reference count only in the code section. Allocate dynamic pointer relocation against STT_GNU_IFUNC symbol in the non-code section. (elf_i386_adjust_dynamic_symbol): Increment PLT reference count only for PC-relative references. (elf_i386_allocate_dynrelocs): Pass TRUE to _bfd_elf_allocate_ifunc_dyn_relocs. (elf_i386_relocate_section): Allow R_386_GOT32/R_386_GOT32X relocations against STT_GNU_IFUNC symbols without PLT. Generate dynamic pointer relocation against STT_GNU_IFUNC symbol in the non-code section and store it in the proper REL section. Don't allow non-pointer relocation against STT_GNU_IFUNC symbol without PLT. (elf_i386_finish_dynamic_symbol): Generate dynamic R_386_IRELATIVE and R_386_GLOB_DAT GOT relocations against STT_GNU_IFUNC symbols without PLT. (elf_i386_finish_dynamic_sections): Don't handle local STT_GNU_IFUNC symbols here. (elf_i386_output_arch_local_syms): Handle local STT_GNU_IFUNC symbols here. (elf_backend_output_arch_local_syms): New. * elf32-x86-64.c (elf_i386_check_relocs): Increment PLT reference count only in the code section. Allocate dynamic pointer relocation against STT_GNU_IFUNC symbol in the non-code section. (elf_x86_64_adjust_dynamic_symbol): Increment PLT reference count only for PC-relative references. (elf_x86_64_allocate_dynrelocs): Pass TRUE to _bfd_elf_allocate_ifunc_dyn_relocs. (elf_x86_64_relocate_section): Allow R_X86_64_GOTPCREL, R_X86_64_GOTPCRELX, R_X86_64_REX_GOTPCRELX and R_X86_64_GOTPCREL64 relocations against STT_GNU_IFUNC symbols without PLT. Generate dynamic pointer relocation against STT_GNU_IFUNC symbol in the non-code section and store it in the proper RELA section. Don't allow non-pointer relocation against STT_GNU_IFUNC symbol without PLT. (elf_x86_64_finish_dynamic_symbol): Generate dynamic R_X86_64_IRELATIVE and R_X86_64_GLOB_DAT GOT relocations against STT_GNU_IFUNC symbols without PLT. (elf_x86_64_finish_dynamic_sections): Don't handle local STT_GNU_IFUNC symbols here. (elf_x86_64_output_arch_local_syms): Handle local STT_GNU_IFUNC symbols here. (elf_backend_output_arch_local_syms): New. * elfnn-aarch64.c (elfNN_aarch64_allocate_ifunc_dynrelocs): Pass FALSE to _bfd_elf_allocate_ifunc_dyn_relocs. ld/ PR ld/20253 * testsuite/ld-i386/i386.exp: Run PR ld/20253 tests. * testsuite/ld-i386/no-plt.exp: Likewise. * testsuite/ld-x86-64/no-plt.exp: Likewise. * testsuite/ld-i386/pr13302.d: Remove .rel.plt section. * testsuite/ld-ifunc/ifunc-13-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-13-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-15-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-15-x86-64.d: Likewise. * testsuite/ld-x86-64/pr13082-5a.d: Likewise. * testsuite/ld-x86-64/pr13082-5b.d: Likewise. * testsuite/ld-x86-64/pr13082-6a.d: Likewise. * testsuite/ld-x86-64/pr13082-6b.d: Likewise. * testsuite/ld-i386/pr20244-2a.d: Remove .plt section. * testsuite/ld-ifunc/ifunc-21-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-21-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-22-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-22-x86-64.d: Likewise. * testsuite/ld-i386/pr20244-2b.d: Updated. * testsuite/ld-i386/pr20244-2c.d: Likewise. * testsuite/ld-ifunc/ifunc-18a-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-18a-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-18b-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-18b-x86-64.d: Likewise. * testsuite/ld-i386/pr20253-1a.c: New file. * testsuite/ld-i386/pr20253-1b.S: Likewise. * testsuite/ld-i386/pr20253-1c.S: Likewise. * testsuite/ld-i386/pr20253-1d.S: Likewise. * testsuite/ld-i386/pr20253-2a.c: Likewise. * testsuite/ld-i386/pr20253-2b.S: Likewise. * testsuite/ld-i386/pr20253-2c.S: Likewise. * testsuite/ld-i386/pr20253-2d.S: Likewise. * testsuite/ld-i386/pr20253-3.d: Likewise. * testsuite/ld-i386/pr20253-3.s: Likewise. * testsuite/ld-i386/pr20253-4.s: Likewise. * testsuite/ld-i386/pr20253-4a.d: Likewise. * testsuite/ld-i386/pr20253-4b.d: Likewise. * testsuite/ld-i386/pr20253-4c.d: Likewise. * testsuite/ld-i386/pr20253-5.d: Likewise. * testsuite/ld-i386/pr20253-5.s: Likewise. * testsuite/ld-ifunc/ifunc-23-x86.s: Likewise. * testsuite/ld-ifunc/ifunc-23a-x86.d: Likewise. * testsuite/ld-ifunc/ifunc-23b-x86.d: Likewise. * testsuite/ld-ifunc/ifunc-23c-x86.d: Likewise. * testsuite/ld-ifunc/ifunc-24-x86.s: Likewise. * testsuite/ld-ifunc/ifunc-24a-x86.d: Likewise. * testsuite/ld-ifunc/ifunc-24b-x86.d: Likewise. * testsuite/ld-ifunc/ifunc-24c-x86.d: Likewise. * testsuite/ld-ifunc/ifunc-25-x86.s: Likewise. * testsuite/ld-ifunc/ifunc-25a-x86.d: Likewise. * testsuite/ld-ifunc/ifunc-25b-x86.d: Likewise. * testsuite/ld-ifunc/ifunc-25c-x86.d: Likewise. * testsuite/ld-x86-64/pr20253-1.s: Likewise. * testsuite/ld-x86-64/pr20253-1a.d: Likewise. * testsuite/ld-x86-64/pr20253-1b.d: Likewise. * testsuite/ld-x86-64/pr20253-1c.d: Likewise. * testsuite/ld-x86-64/pr20253-1d.d: Likewise. * testsuite/ld-x86-64/pr20253-1e.d: Likewise. * testsuite/ld-x86-64/pr20253-1f.d: Likewise. * testsuite/ld-x86-64/pr20253-1g.d: Likewise. * testsuite/ld-x86-64/pr20253-1h.d: Likewise. * testsuite/ld-x86-64/pr20253-1i.d: Likewise. * testsuite/ld-x86-64/pr20253-1j.d: Likewise. * testsuite/ld-x86-64/pr20253-1k.d: Likewise. * testsuite/ld-x86-64/pr20253-1l.d: Likewise. * testsuite/ld-x86-64/pr20253-2a.c: Likewise. * testsuite/ld-x86-64/pr20253-2b.S: Likewise. * testsuite/ld-x86-64/pr20253-2c.S: Likewise. * testsuite/ld-x86-64/pr20253-2d.S: Likewise. * testsuite/ld-x86-64/pr20253-3.d: Likewise. * testsuite/ld-x86-64/pr20253-3.s: Likewise. * testsuite/ld-x86-64/pr20253-4.s: Likewise. * testsuite/ld-x86-64/pr20253-4a.d: Likewise. * testsuite/ld-x86-64/pr20253-4b.d: Likewise. * testsuite/ld-x86-64/pr20253-4c.d: Likewise. * testsuite/ld-x86-64/pr20253-4d.d: Likewise. * testsuite/ld-x86-64/pr20253-4e.d: Likewise. * testsuite/ld-x86-64/pr20253-4f.d: Likewise. * testsuite/ld-x86-64/pr20253-5.s: Likewise. * testsuite/ld-x86-64/pr20253-5a.d: Likewise. * testsuite/ld-x86-64/pr20253-5b.d: Likewise. * testsuite/ld-ifunc/ifunc-18a-i386.d: Remove extra IRELATIVE relocation. * testsuite/ld-ifunc/ifunc-18a-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-18b-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-18b-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-18a.s: Fix a typo. * testsuite/ld-x86-64/x86-64.exp: Run pr20253-1 tests.
2016-06-19 00:16:52 +08:00
0+4000c8 <__start>:
Enhance objdump so that it will use .got, .plt and .plt.got section symbols when disassembling, and it will use dynamic relocs to interpret entries in the PLT and GOT. binutils * objdump.c (is_significant_symbol_name): New function. (remove_useless_symbols): Do not remove significanr symbols. (find_symbol_for_address): If an exact match for the specified address has not been found, try scanning the dynamic relocs to see if one of these matches the address. If so, use the symbol associated with the reloc. (objdump_print_addr_with_symbol): Do not print offsets to symbols with no value. (disassemble_section): Only use dynamic relocs if the user requested this. (disassemble_data): Always load dynamic relocs if they are available. ld * ld-aarch64/emit-relocs-515-be.d: Adjust output to match change in objdump. * ld-aarch64/emit-relocs-515.d: Likewise. * ld-aarch64/emit-relocs-516-be.d: Likewise. * ld-aarch64/emit-relocs-516.d: Likewise. * ld-aarch64/farcall-b-plt.d: Likewise. * ld-aarch64/farcall-bl-plt.d: Likewise. * ld-aarch64/gc-plt-relocs.d: Likewise. * ld-aarch64/tls-desc-ie.d: Likewise. * ld-aarch64/tls-tiny-desc.d: Likewise. * ld-aarch64/tls-tiny-gd.d: Likewise. * ld-aarch64/tls-tiny-ie.d: Likewise. * ld-arm/arm-app-abs32.d: Likewise. * ld-arm/arm-app.d: Likewise. * ld-arm/arm-lib-plt32.d: Likewise. * ld-arm/arm-lib.d: Likewise. * ld-arm/armthumb-lib.d: Likewise. * ld-arm/cortex-a8-fix-b-plt.d: Likewise. * ld-arm/cortex-a8-fix-bcc-plt.d: Likewise. * ld-arm/cortex-a8-fix-bl-plt.d: Likewise. * ld-arm/cortex-a8-fix-bl-rel-plt.d: Likewise. * ld-arm/cortex-a8-fix-blx-plt.d: Likewise. * ld-arm/farcall-mixed-app-v5.d: Likewise. * ld-arm/farcall-mixed-app.d: Likewise. * ld-arm/farcall-mixed-app2.d: Likewise. * ld-arm/farcall-mixed-lib-v4t.d: Likewise. * ld-arm/farcall-mixed-lib.d: Likewise. * ld-arm/ifunc-10.dd: Likewise. * ld-arm/ifunc-14.dd: Likewise. * ld-arm/ifunc-15.dd: Likewise. * ld-arm/ifunc-3.dd: Likewise. * ld-arm/ifunc-4.dd: Likewise. * ld-arm/ifunc-9.dd: Likewise. * ld-arm/long-plt-format.d: Likewise. * ld-arm/mixed-app-v5.d: Likewise. * ld-arm/mixed-app.d: Likewise. * ld-arm/mixed-lib.d: Likewise. * ld-arm/tls-lib-loc.d: Likewise. * ld-cris/dso-pltdis1.d: Likewise. * ld-cris/dso-pltdis2.d: Likewise. * ld-cris/dso12-pltdis.d: Likewise. * ld-elf/symbolic-func.r: Likewise. * ld-frv/fdpic-pie-1.d: Likewise. * ld-frv/fdpic-pie-2.d: Likewise. * ld-frv/fdpic-pie-6.d: Likewise. * ld-frv/fdpic-pie-7.d: Likewise. * ld-frv/fdpic-pie-8.d: Likewise. * ld-frv/fdpic-shared-1.d: Likewise. * ld-frv/fdpic-shared-2.d: Likewise. * ld-frv/fdpic-shared-3.d: Likewise. * ld-frv/fdpic-shared-4.d: Likewise. * ld-frv/fdpic-shared-5.d: Likewise. * ld-frv/fdpic-shared-6.d: Likewise. * ld-frv/fdpic-shared-7.d: Likewise. * ld-frv/fdpic-shared-8.d: Likewise. * ld-frv/fdpic-shared-local-2.d: Likewise. * ld-frv/fdpic-shared-local-8.d: Likewise. * ld-frv/fdpic-static-1.d: Likewise. * ld-frv/fdpic-static-2.d: Likewise. * ld-frv/fdpic-static-6.d: Likewise. * ld-frv/fdpic-static-7.d: Likewise. * ld-frv/fdpic-static-8.d: Likewise. * ld-frv/tls-dynamic-2.d: Likewise. * ld-frv/tls-initial-shared-2.d: Likewise. * ld-frv/tls-relax-shared-2.d: Likewise. * ld-frv/tls-shared-2.d: Likewise. * ld-i386/plt-nacl.pd: Likewise. * ld-i386/plt-pic-nacl.pd: Likewise. * ld-i386/plt-pic.pd: Likewise. * ld-i386/plt.pd: Likewise. * ld-i386/pr19636-1d-nacl.d: Likewise. * ld-i386/pr19636-1d.d: Likewise. * ld-i386/pr19636-2c-nacl.d: Likewise. * ld-i386/pr19636-2c.d: Likewise. * ld-ifunc/ifunc-21-x86-64.d: Likewise. * ld-ifunc/ifunc-22-x86-64.d: Likewise. * ld-ifunc/pr17154-i386.d: Likewise. * ld-ifunc/pr17154-x86-64.d: Likewise. * ld-m68k/plt1-68020.d: Likewise. * ld-m68k/plt1-cpu32.d: Likewise. * ld-m68k/plt1-isab.d: Likewise. * ld-m68k/plt1-isac.d: Likewise. * ld-metag/shared.d: Likewise. * ld-metag/stub_pic_app.d: Likewise. * ld-metag/stub_pic_shared.d: Likewise. * ld-metag/stub_shared.d: Likewise. * ld-s390/tlsbin_64.dd: Likewise. * ld-s390/tlspic_64.dd: Likewise. * ld-tic6x/shlib-1.dd: Likewise. * ld-tic6x/shlib-1b.dd: Likewise. * ld-tic6x/shlib-1rb.dd: Likewise. * ld-tic6x/shlib-app-1.dd: Likewise. * ld-tic6x/shlib-app-1b.dd: Likewise. * ld-tic6x/shlib-app-1r.dd: Likewise. * ld-tic6x/shlib-app-1rb.dd: Likewise. * ld-tic6x/shlib-noindex.dd: Likewise. * ld-vax-elf/export-class-data.dd: Likewise. * ld-vax-elf/plt-local-lib.dd: Likewise. * ld-vax-elf/plt-local.dd: Likewise. * ld-x86-64/bnd-ifunc-2.d: Likewise. * ld-x86-64/bnd-plt-1.d: Likewise. * ld-x86-64/gotpcrel1.dd: Likewise. * ld-x86-64/libno-plt-1b.dd: Likewise. * ld-x86-64/load1c-nacl.d: Likewise. * ld-x86-64/load1c.d: Likewise. * ld-x86-64/load1d-nacl.d: Likewise. * ld-x86-64/load1d.d: Likewise. * ld-x86-64/mov1a.d: Likewise. * ld-x86-64/mov1b.d: Likewise. * ld-x86-64/mov1c.d: Likewise. * ld-x86-64/mov1d.d: Likewise. * ld-x86-64/mov2a.d: Likewise. * ld-x86-64/mov2b.d: Likewise. * ld-x86-64/mov2c.d: Likewise. * ld-x86-64/mov2d.d: Likewise. * ld-x86-64/mpx3.dd: Likewise. * ld-x86-64/mpx4.dd: Likewise. * ld-x86-64/no-plt-1a.dd: Likewise. * ld-x86-64/no-plt-1b.dd: Likewise. * ld-x86-64/no-plt-1c.dd: Likewise. * ld-x86-64/no-plt-1e.dd: Likewise. * ld-x86-64/no-plt-1f.dd: Likewise. * ld-x86-64/no-plt-1g.dd: Likewise. * ld-x86-64/plt-main-bnd.dd: Likewise. * ld-x86-64/plt-nacl.pd: Likewise. * ld-x86-64/plt.pd: Likewise. * ld-x86-64/pr18591.d: Likewise. * ld-x86-64/pr19609-1c.d: Likewise. * ld-x86-64/pr19609-1e.d: Likewise. * ld-x86-64/pr19609-1j.d: Likewise. * ld-x86-64/pr19609-1l.d: Likewise. * ld-x86-64/pr19609-1m.d: Likewise. * ld-x86-64/pr19609-5b.d: Likewise. * ld-x86-64/pr19609-5c.d: Likewise. * ld-x86-64/pr19609-5e.d: Likewise. * ld-x86-64/pr19609-6b.d: Likewise. * ld-x86-64/pr19609-7b.d: Likewise. * ld-x86-64/pr19609-7d.d: Likewise. * ld-x86-64/pr19636-2d.d: Likewise. * ld-x86-64/pr20093-1.d: Likewise. * ld-x86-64/pr20093-2.d: Likewise. * ld-x86-64/pr20253-1b.d: Likewise. * ld-x86-64/pr20253-1d.d: Likewise. * ld-x86-64/pr20253-1f.d: Likewise. * ld-x86-64/pr20253-1h.d: Likewise. * ld-x86-64/pr20253-1j.d: Likewise. * ld-x86-64/pr20253-1l.d: Likewise. * ld-x86-64/protected3.d: Likewise. * ld-x86-64/tlsbin.dd: Likewise. * ld-x86-64/tlsbin2.dd: Likewise. * ld-x86-64/tlsbindesc.dd: Likewise. * ld-x86-64/tlsdesc-nacl.pd: Likewise. * ld-x86-64/tlsdesc.dd: Likewise. * ld-x86-64/tlsdesc.pd: Likewise. * ld-x86-64/tlsgd10.dd: Likewise. * ld-x86-64/tlsgd5.dd: Likewise. * ld-x86-64/tlsgd6.dd: Likewise. * ld-x86-64/tlsgd8.dd: Likewise. * ld-x86-64/tlsgdesc.dd: Likewise. * ld-x86-64/tlspic.dd: Likewise. * ld-x86-64/tlspic2.dd: Likewise. 2016-10-11 Nick Clifton <nickc@redhat.com> PR ld/20535 * emultempl/elf32.em (_search_needed): Add support for pseudo environment variables supported by ld.so. Namely $ORIGIN, $LIB and $PLATFORM. * configure.ac: Add getauxval to list AC_CHECK_FUNCS list. * config.in: Regenerate. * configure: Regenerate. 2016-10-11 Alan Modra <amodra@gmail.com> * ldlang.c (lang_do_assignments_1): Descend into output section statements that do not yet have bfd sections. Set symbol section temporarily for symbols defined in such statements to the undefined section. Don't error on data or reloc statements until final phase. * ldexp.c (exp_fold_tree_1 <etree_assign>): Handle bfd_und_section in expld.section. * testsuite/ld-mmix/bpo-10.d: Adjust. * testsuite/ld-mmix/bpo-11.d: Adjust. 2016-10-10 Andreas Krebbel <krebbel@linux.vnet.ibm.com> * emulparams/elf64_s390.sh: Move binary start to 16M. * testsuite/ld-s390/tlsbin_64.dd: Adjust testcases accordingly. * testsuite/ld-s390/tlsbin_64.rd: Likewise. 2016-10-07 Alan Modra <amodra@gmail.com> * ldexp.c (MAX): Define. (exp_unop, exp_binop, exp_trinop): Alloc at least enough for etree_type.value. 2016-10-07 Alan Modra <amodra@gmail.com> * testsuite/lib/ld-lib.exp (is_generic_elf): New, extracted from.. * testsuite/ld-elf/elf.exp: ..here. 2016-10-06 Ludovic Court?s <ludo@gnu.org> * emulparams/elf32bmipn32-defs.sh: Shift quote of "x$EMULATION_NAME" to the left to work around <http://ftp.gnu.org/gnu/bash/bash-4.2-patches/bash42-007>. 2016-10-06 Alan Modra <amodra@gmail.com> * lexsup.c: Spell fall through comments consistently and add missing fall through comments. 2016-10-06 Alan Modra <amodra@gmail.com> * plugin.c (asymbol_from_plugin_symbol): Avoid compiler warning by adding return. 2016-10-04 Alan Modra <amodra@gmail.com> * ld.texinfo (Expression Section): Update result of arithmetic expressions. * ldexp.c (arith_result_section): New function. (fold_binary): Use it. 2016-10-04 Alan Modra <amodra@gmail.com> * ldexp.c (exp_value_fold): New function. (exp_unop, exp_binop, exp_trinop): Use it. 2016-09-30 Alan Modra <amodra@gmail.com> * scripttempl/v850.sc: Don't reference __ctbp, __ep, __gp when not relocating. * scripttempl/v850_rh850.sc: Likewise. 2016-09-30 Alan Modra <amodra@gmail.com> PR ld/20528 * testsuite/ld-elf/pr20528a.d: xfail generic elf targets. Allow multiple .text sections for hppa-linux. * testsuite/ld-elf/pr20528b.d: Likewise. 2016-09-30 Alan Modra <amodra@gmail.com> * ldmain.c (default_bfd_error_handler): New function pointer. (ld_bfd_error_handler): New function. (main): Arrange to call it on bfd errors/warnings. (ld_bfd_assert_handler): Enable tail call. 2016-09-30 Alan Modra <amodra@gmail.com> * ldlang.c (ignore_bfd_errors): Update params. 2016-09-29 H.J. Lu <hongjiu.lu@intel.com> PR ld/20528 * emultempl/elf32.em (gld${EMULATION_NAME}_place_orphan): Don't merge 2 sections with different SHF_EXCLUDE. * testsuite/ld-elf/pr20528a.d: New file. * testsuite/ld-elf/pr20528a.s: Likewise. * testsuite/ld-elf/pr20528b.d: Likewise. * testsuite/ld-elf/pr20528b.s: Likewise. 2016-09-28 Christophe Lyon <christophe.lyon@linaro.org> PR ld/20608 * testsuite/ld-arm/arm-elf.exp: Handle new testcase. * testsuite/ld-arm/farcall-mixed-app2.d: New file. * testsuite/ld-arm/farcall-mixed-app2.r: Likewise. * testsuite/ld-arm/farcall-mixed-app2.s: Likewise. * testsuite/ld-arm/farcall-mixed-app2.sym: Likewise. 2016-09-26 Vlad Zakharov <vzakhar@synopsys.com> * Makefile.in: Regenerate. * configure: Likewise. 2016-09-26 Alan Modra <amodra@gmail.com> * testsuite/ld-powerpc/attr-gnu-4-4.s: Delete. * testsuite/ld-powerpc/attr-gnu-4-14.d: Delete. * testsuite/ld-powerpc/attr-gnu-4-24.d: Delete. * testsuite/ld-powerpc/attr-gnu-4-34.d: Delete. * testsuite/ld-powerpc/attr-gnu-4-41.d: Delete. * testsuite/ld-powerpc/attr-gnu-4-32.d: Adjust expected warning. * testsuite/ld-powerpc/attr-gnu-8-23.d: Likewise. * testsuite/ld-powerpc/attr-gnu-4-01.d: Adjust expected output. * testsuite/ld-powerpc/attr-gnu-4-02.d: Likewise. * testsuite/ld-powerpc/attr-gnu-4-03.d: Likewise. * testsuite/ld-powerpc/attr-gnu-4-10.d: Likewise. * testsuite/ld-powerpc/attr-gnu-4-11.d: Likewise. * testsuite/ld-powerpc/attr-gnu-4-20.d: Likewise. * testsuite/ld-powerpc/attr-gnu-4-22.d: Likewise. * testsuite/ld-powerpc/attr-gnu-4-33.d: Likewise. * testsuite/ld-powerpc/attr-gnu-8-11.d: Likewise. * testsuite/ld-powerpc/powerpc.exp: Don't run deleted tests. 2016-09-23 Akihiko Odaki <akihiko.odaki.4i@stu.hosei.ac.jp> PR ld/20595 * testsuite/ld-arm/unwind-4.d: Add -q option to linker command line and -r option to objdump command line. Match emitted relocs to make sure that superflous relocs are not generated. 2016-09-23 Andreas Krebbel <krebbel@linux.vnet.ibm.com> * emulparams/elf64_s390.sh: Change TEXT_START_ADDR to 256MB. * testsuite/ld-s390/tlsbin_64.dd: Adjust testcase accordingly. * testsuite/ld-s390/tlsbin_64.rd: Likewise. 2016-09-22 Nick Clifton <nickc@redhat.com> * emultempl/elf32.em (_try_needed): In verbose mode, report failed attempts to find a needed library. 2016-09-21 Richard Sandiford <richard.sandiford@arm.com> * testsuite/ld-aarch64/emit-relocs-28.d: Expect spaces after "," in addresses. * testsuite/ld-aarch64/emit-relocs-301-be.d: Likewise. * testsuite/ld-aarch64/emit-relocs-301.d: Likewise. * testsuite/ld-aarch64/emit-relocs-302-be.d: Likewise. * testsuite/ld-aarch64/emit-relocs-302.d: Likewise. * testsuite/ld-aarch64/emit-relocs-310-be.d: Likewise. * testsuite/ld-aarch64/emit-relocs-310.d: Likewise. * testsuite/ld-aarch64/emit-relocs-313.d: Likewise. * testsuite/ld-aarch64/emit-relocs-515-be.d: Likewise. * testsuite/ld-aarch64/emit-relocs-515.d: Likewise. * testsuite/ld-aarch64/emit-relocs-516-be.d: Likewise. * testsuite/ld-aarch64/emit-relocs-516.d: Likewise. * testsuite/ld-aarch64/emit-relocs-531.d: Likewise. * testsuite/ld-aarch64/emit-relocs-532.d: Likewise. * testsuite/ld-aarch64/emit-relocs-533.d: Likewise. * testsuite/ld-aarch64/emit-relocs-534.d: Likewise. * testsuite/ld-aarch64/emit-relocs-535.d: Likewise. * testsuite/ld-aarch64/emit-relocs-536.d: Likewise. * testsuite/ld-aarch64/emit-relocs-537.d: Likewise. * testsuite/ld-aarch64/emit-relocs-538.d: Likewise. * testsuite/ld-aarch64/erratum835769.d: Likewise. * testsuite/ld-aarch64/erratum843419.d: Likewise. * testsuite/ld-aarch64/farcall-b-plt.d: Likewise. * testsuite/ld-aarch64/farcall-bl-plt.d: Likewise. * testsuite/ld-aarch64/gc-plt-relocs.d: Likewise. * testsuite/ld-aarch64/ifunc-21.d: Likewise. * testsuite/ld-aarch64/ifunc-7c.d: Likewise. * testsuite/ld-aarch64/tls-desc-ie.d: Likewise. * testsuite/ld-aarch64/tls-large-desc-be.d: Likewise. * testsuite/ld-aarch64/tls-large-desc.d: Likewise. * testsuite/ld-aarch64/tls-large-ie-be.d: Likewise. * testsuite/ld-aarch64/tls-large-ie.d: Likewise. * testsuite/ld-aarch64/tls-relax-all.d: Likewise. * testsuite/ld-aarch64/tls-relax-gd-ie.d: Likewise. * testsuite/ld-aarch64/tls-relax-gdesc-ie-2.d: Likewise. * testsuite/ld-aarch64/tls-relax-gdesc-ie.d: Likewise. * testsuite/ld-aarch64/tls-relax-large-desc-ie-be.d: Likewise. * testsuite/ld-aarch64/tls-relax-large-desc-ie.d: Likewise. * testsuite/ld-aarch64/tls-tiny-desc.d: Likewise. * testsuite/ld-aarch64/tls-tiny-gd.d: Likewise. gas * gas/arm/tls.d: Adjust output to match change in objdump.
2016-10-11 20:50:10 +08:00
+[a-f0-9]+: ff 15 2a 00 20 00 callq \*0x20002a\(%rip\) # 6000f8 <.got>
+[a-f0-9]+: ff 25 24 00 20 00 jmpq \*0x200024\(%rip\) # 6000f8 <.got>
+[a-f0-9]+: 48 03 05 1d 00 20 00 add 0x20001d\(%rip\),%rax # 6000f8 <.got>
+[a-f0-9]+: 48 8b 05 16 00 20 00 mov 0x200016\(%rip\),%rax # 6000f8 <.got>
+[a-f0-9]+: 48 85 05 0f 00 20 00 test %rax,0x20000f\(%rip\) # 6000f8 <.got>
Don't generate PLT for IFUNC GOT/pointer reference If a backend supports it, PLT entry isn't needed when all references to a STT_GNU_IFUNC symbols are done via GOT or static function pointers. For GOT entries, We generate dynamic R_*_GLOB_DAT relocations for preemptable symbols and R_*_IRELATIVE relocations for non-preemptable symbols to update them with real function address. For static pointer pointers, we generate dynamic pointer relocations and store them in: 1. .rel[a].ifunc section in PIC object. 2. .rel[a].got section in dynamic executable. 3. .rel[a].iplt section in static executable. We don't allocate GOT entry if it isn't used. bfd/ PR ld/20253 * elf-bfd.h (_bfd_elf_allocate_ifunc_dyn_relocs): Add an bfd_boolean argument. * elf-ifunc.c (_bfd_elf_create_ifunc_sections): Replace "shared object" with "PIC object" in comments. (_bfd_elf_allocate_ifunc_dyn_relocs): Updated. Replace "shared object" with "PIC object" in comments. Avoid PLT if requested. Generate dynamic relocations for non-GOT references. Make room for the special first entry in PLT and allocate PLT entry only for PLT and PC-relative references. Store dynamic GOT relocations in .rel[a].iplt section for static executables. If PLT isn't used, always use GOT for symbol value. Don't allocate GOT entry if it isn't used. * elf32-i386.c (elf_i386_check_relocs): Increment PLT reference count only in the code section. Allocate dynamic pointer relocation against STT_GNU_IFUNC symbol in the non-code section. (elf_i386_adjust_dynamic_symbol): Increment PLT reference count only for PC-relative references. (elf_i386_allocate_dynrelocs): Pass TRUE to _bfd_elf_allocate_ifunc_dyn_relocs. (elf_i386_relocate_section): Allow R_386_GOT32/R_386_GOT32X relocations against STT_GNU_IFUNC symbols without PLT. Generate dynamic pointer relocation against STT_GNU_IFUNC symbol in the non-code section and store it in the proper REL section. Don't allow non-pointer relocation against STT_GNU_IFUNC symbol without PLT. (elf_i386_finish_dynamic_symbol): Generate dynamic R_386_IRELATIVE and R_386_GLOB_DAT GOT relocations against STT_GNU_IFUNC symbols without PLT. (elf_i386_finish_dynamic_sections): Don't handle local STT_GNU_IFUNC symbols here. (elf_i386_output_arch_local_syms): Handle local STT_GNU_IFUNC symbols here. (elf_backend_output_arch_local_syms): New. * elf32-x86-64.c (elf_i386_check_relocs): Increment PLT reference count only in the code section. Allocate dynamic pointer relocation against STT_GNU_IFUNC symbol in the non-code section. (elf_x86_64_adjust_dynamic_symbol): Increment PLT reference count only for PC-relative references. (elf_x86_64_allocate_dynrelocs): Pass TRUE to _bfd_elf_allocate_ifunc_dyn_relocs. (elf_x86_64_relocate_section): Allow R_X86_64_GOTPCREL, R_X86_64_GOTPCRELX, R_X86_64_REX_GOTPCRELX and R_X86_64_GOTPCREL64 relocations against STT_GNU_IFUNC symbols without PLT. Generate dynamic pointer relocation against STT_GNU_IFUNC symbol in the non-code section and store it in the proper RELA section. Don't allow non-pointer relocation against STT_GNU_IFUNC symbol without PLT. (elf_x86_64_finish_dynamic_symbol): Generate dynamic R_X86_64_IRELATIVE and R_X86_64_GLOB_DAT GOT relocations against STT_GNU_IFUNC symbols without PLT. (elf_x86_64_finish_dynamic_sections): Don't handle local STT_GNU_IFUNC symbols here. (elf_x86_64_output_arch_local_syms): Handle local STT_GNU_IFUNC symbols here. (elf_backend_output_arch_local_syms): New. * elfnn-aarch64.c (elfNN_aarch64_allocate_ifunc_dynrelocs): Pass FALSE to _bfd_elf_allocate_ifunc_dyn_relocs. ld/ PR ld/20253 * testsuite/ld-i386/i386.exp: Run PR ld/20253 tests. * testsuite/ld-i386/no-plt.exp: Likewise. * testsuite/ld-x86-64/no-plt.exp: Likewise. * testsuite/ld-i386/pr13302.d: Remove .rel.plt section. * testsuite/ld-ifunc/ifunc-13-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-13-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-15-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-15-x86-64.d: Likewise. * testsuite/ld-x86-64/pr13082-5a.d: Likewise. * testsuite/ld-x86-64/pr13082-5b.d: Likewise. * testsuite/ld-x86-64/pr13082-6a.d: Likewise. * testsuite/ld-x86-64/pr13082-6b.d: Likewise. * testsuite/ld-i386/pr20244-2a.d: Remove .plt section. * testsuite/ld-ifunc/ifunc-21-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-21-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-22-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-22-x86-64.d: Likewise. * testsuite/ld-i386/pr20244-2b.d: Updated. * testsuite/ld-i386/pr20244-2c.d: Likewise. * testsuite/ld-ifunc/ifunc-18a-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-18a-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-18b-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-18b-x86-64.d: Likewise. * testsuite/ld-i386/pr20253-1a.c: New file. * testsuite/ld-i386/pr20253-1b.S: Likewise. * testsuite/ld-i386/pr20253-1c.S: Likewise. * testsuite/ld-i386/pr20253-1d.S: Likewise. * testsuite/ld-i386/pr20253-2a.c: Likewise. * testsuite/ld-i386/pr20253-2b.S: Likewise. * testsuite/ld-i386/pr20253-2c.S: Likewise. * testsuite/ld-i386/pr20253-2d.S: Likewise. * testsuite/ld-i386/pr20253-3.d: Likewise. * testsuite/ld-i386/pr20253-3.s: Likewise. * testsuite/ld-i386/pr20253-4.s: Likewise. * testsuite/ld-i386/pr20253-4a.d: Likewise. * testsuite/ld-i386/pr20253-4b.d: Likewise. * testsuite/ld-i386/pr20253-4c.d: Likewise. * testsuite/ld-i386/pr20253-5.d: Likewise. * testsuite/ld-i386/pr20253-5.s: Likewise. * testsuite/ld-ifunc/ifunc-23-x86.s: Likewise. * testsuite/ld-ifunc/ifunc-23a-x86.d: Likewise. * testsuite/ld-ifunc/ifunc-23b-x86.d: Likewise. * testsuite/ld-ifunc/ifunc-23c-x86.d: Likewise. * testsuite/ld-ifunc/ifunc-24-x86.s: Likewise. * testsuite/ld-ifunc/ifunc-24a-x86.d: Likewise. * testsuite/ld-ifunc/ifunc-24b-x86.d: Likewise. * testsuite/ld-ifunc/ifunc-24c-x86.d: Likewise. * testsuite/ld-ifunc/ifunc-25-x86.s: Likewise. * testsuite/ld-ifunc/ifunc-25a-x86.d: Likewise. * testsuite/ld-ifunc/ifunc-25b-x86.d: Likewise. * testsuite/ld-ifunc/ifunc-25c-x86.d: Likewise. * testsuite/ld-x86-64/pr20253-1.s: Likewise. * testsuite/ld-x86-64/pr20253-1a.d: Likewise. * testsuite/ld-x86-64/pr20253-1b.d: Likewise. * testsuite/ld-x86-64/pr20253-1c.d: Likewise. * testsuite/ld-x86-64/pr20253-1d.d: Likewise. * testsuite/ld-x86-64/pr20253-1e.d: Likewise. * testsuite/ld-x86-64/pr20253-1f.d: Likewise. * testsuite/ld-x86-64/pr20253-1g.d: Likewise. * testsuite/ld-x86-64/pr20253-1h.d: Likewise. * testsuite/ld-x86-64/pr20253-1i.d: Likewise. * testsuite/ld-x86-64/pr20253-1j.d: Likewise. * testsuite/ld-x86-64/pr20253-1k.d: Likewise. * testsuite/ld-x86-64/pr20253-1l.d: Likewise. * testsuite/ld-x86-64/pr20253-2a.c: Likewise. * testsuite/ld-x86-64/pr20253-2b.S: Likewise. * testsuite/ld-x86-64/pr20253-2c.S: Likewise. * testsuite/ld-x86-64/pr20253-2d.S: Likewise. * testsuite/ld-x86-64/pr20253-3.d: Likewise. * testsuite/ld-x86-64/pr20253-3.s: Likewise. * testsuite/ld-x86-64/pr20253-4.s: Likewise. * testsuite/ld-x86-64/pr20253-4a.d: Likewise. * testsuite/ld-x86-64/pr20253-4b.d: Likewise. * testsuite/ld-x86-64/pr20253-4c.d: Likewise. * testsuite/ld-x86-64/pr20253-4d.d: Likewise. * testsuite/ld-x86-64/pr20253-4e.d: Likewise. * testsuite/ld-x86-64/pr20253-4f.d: Likewise. * testsuite/ld-x86-64/pr20253-5.s: Likewise. * testsuite/ld-x86-64/pr20253-5a.d: Likewise. * testsuite/ld-x86-64/pr20253-5b.d: Likewise. * testsuite/ld-ifunc/ifunc-18a-i386.d: Remove extra IRELATIVE relocation. * testsuite/ld-ifunc/ifunc-18a-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-18b-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-18b-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-18a.s: Fix a typo. * testsuite/ld-x86-64/x86-64.exp: Run pr20253-1 tests.
2016-06-19 00:16:52 +08:00
+[a-f0-9]+: 48 c7 c0 f1 00 40 00 mov \$0x4000f1,%rax
0+4000f0 <foo>:
+[a-f0-9]+: c3 retq
0+4000f1 <bar>:
+[a-f0-9]+: c3 retq
#pass