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8c0546e928
When linking Windows x86-64 relocatable object files to generate x86-64 ELF executable, we need to subtract __ImageBase, aka __executable_start, for R_AMD64_IMAGEBASE relocation: 1. Add link_info to struct output_elf_obj_tdata to store linker info and _bfd_get_link_info() to retrieve it. 2. Add ldelf_set_output_arch to set up link_info. 3. Add pex64_link_add_symbols to create an indirect reference to __executable_start for __ImageBase to support R_AMD64_IMAGEBASE relocation when adding symbols from Windows x86-64 relocatable object files to generate x86-64 ELF executable. 4. Also subtract __ImageBase for R_AMD64_IMAGEBASE when generating x86-64 ELF executable. bfd/ PR ld/27425 PR ld/27432 * bfd.c (_bfd_get_link_info): New function. * elf-bfd.h (output_elf_obj_tdata): Add link_info. (elf_link_info): New. * libbfd-in.h (_bfd_get_link_info): New prototype. * coff-x86_64.c (coff_amd64_reloc): Also subtract __ImageBase for R_AMD64_IMAGEBASE when generating x86-64 ELF executable. * pe-x86_64.c: Include "coff/internal.h" and "libcoff.h". (pex64_link_add_symbols): New function. (coff_bfd_link_add_symbols): New macro. * libbfd.h: Regenerated. ld/ PR ld/27425 PR ld/27432 * ldelf.c (ldelf_set_output_arch): New function. * ldelf.h (ldelf_set_output_arch): New prototype. * emultempl/elf.em (LDEMUL_SET_OUTPUT_ARCH): Default to ldelf_set_output_arch. * ld-x86-64/pe-x86-64-1.od: Expect __executable_start. * testsuite/ld-x86-64/pe-x86-64-2.od: Likewise. * testsuite/ld-x86-64/pe-x86-64-3.od: Likewise. * testsuite/ld-x86-64/pe-x86-64-4.od: Likewise. * testsuite/ld-x86-64/pe-x86-64-5.od: Likewise. * testsuite/ld-x86-64/pe-x86-64-5.rd: Likewise. * testsuite/ld-x86-64/pe-x86-64-6.obj.bz2: New file. * testsuite/ld-x86-64/pe-x86-64-6.od: Likewise. * testsuite/ld-x86-64/pe-x86-64.exp: Run ld/27425 test.
63 lines
3.0 KiB
Plaintext
63 lines
3.0 KiB
Plaintext
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.*: +file format .*
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SYMBOL TABLE:
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0+400000 g .text\$mn 0000000000000000 __executable_start
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0+403038 g .bss 0000000000000000 c
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0+401000 g .text\$mn 0000000000000000 begin
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0+403038 g .bss 0000000000000000 __bss_start
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0+403018 g .data 0000000000000000 Struct
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0+401020 g .text\$mn 0000000000000000 opti_O1
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0+403038 g .data 0000000000000000 _edata
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0+403040 g .bss 0000000000000000 _end
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0+401060 g .text\$mn 0000000000000000 opti_Od
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Disassembly of section .text\$mn:
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0+401000 <begin>:
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+[a-f0-9]+: 48 83 ec 28 sub \$0x28,%rsp
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+[a-f0-9]+: 48 c7 05 29 20 00 00 01 00 00 00 movq \$0x1,0x2029\(%rip\) # 403038 <__bss_start>
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+[a-f0-9]+: e8 4c 00 00 00 call 401060 <opti_Od>
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+[a-f0-9]+: e8 07 00 00 00 call 401020 <opti_O1>
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+[a-f0-9]+: 48 83 c4 28 add \$0x28,%rsp
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+[a-f0-9]+: c3 ret
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+[a-f0-9]+: 66 90 xchg %ax,%ax
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0+401020 <opti_O1>:
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+[a-f0-9]+: b8 33 22 00 00 mov \$0x2233,%eax
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+[a-f0-9]+: c6 05 ec 1f 00 00 12 movb \$0x12,0x1fec\(%rip\) # 403018 <Struct>
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+[a-f0-9]+: 66 89 05 e7 1f 00 00 mov %ax,0x1fe7\(%rip\) # 40301a <Struct\+0x2>
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+[a-f0-9]+: 48 b8 99 99 99 99 88 88 88 88 movabs \$0x8888888899999999,%rax
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+[a-f0-9]+: 48 89 05 dc 1f 00 00 mov %rax,0x1fdc\(%rip\) # 403020 <Struct\+0x8>
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+[a-f0-9]+: 83 c8 ff or \$0xffffffff,%eax
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+[a-f0-9]+: c7 05 cb 1f 00 00 55 55 44 44 movl \$0x44445555,0x1fcb\(%rip\) # 40301c <Struct\+0x4>
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+[a-f0-9]+: c3 ret
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+[a-f0-9]+: 66 2e 0f 1f 84 00 00 00 00 00 cs nopw 0x0\(%rax,%rax,1\)
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+[a-f0-9]+: 0f 1f 40 00 nopl 0x0\(%rax\)
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0+401060 <opti_Od>:
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+[a-f0-9]+: 48 89 4c 24 08 mov %rcx,0x8\(%rsp\)
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+[a-f0-9]+: b8 10 00 00 00 mov \$0x10,%eax
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+[a-f0-9]+: 48 6b c0 00 imul \$0x0,%rax,%rax
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+[a-f0-9]+: 48 8d 0d a3 1f 00 00 lea 0x1fa3\(%rip\),%rcx # 403018 <Struct>
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+[a-f0-9]+: c6 04 01 11 movb \$0x11,\(%rcx,%rax,1\)
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+[a-f0-9]+: b8 10 00 00 00 mov \$0x10,%eax
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+[a-f0-9]+: 48 6b c0 00 imul \$0x0,%rax,%rax
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+[a-f0-9]+: 48 8d 0d 8f 1f 00 00 lea 0x1f8f\(%rip\),%rcx # 403018 <Struct>
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+[a-f0-9]+: ba 22 22 00 00 mov \$0x2222,%edx
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+[a-f0-9]+: 66 89 54 01 02 mov %dx,0x2\(%rcx,%rax,1\)
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+[a-f0-9]+: b8 10 00 00 00 mov \$0x10,%eax
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+[a-f0-9]+: 48 6b c0 00 imul \$0x0,%rax,%rax
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+[a-f0-9]+: 48 8d 0d 75 1f 00 00 lea 0x1f75\(%rip\),%rcx # 403018 <Struct>
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+[a-f0-9]+: c7 44 01 04 44 44 44 44 movl \$0x44444444,0x4\(%rcx,%rax,1\)
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+[a-f0-9]+: b8 10 00 00 00 mov \$0x10,%eax
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+[a-f0-9]+: 48 6b c0 00 imul \$0x0,%rax,%rax
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+[a-f0-9]+: 48 8d 0d 5d 1f 00 00 lea 0x1f5d\(%rip\),%rcx # 403018 <Struct>
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+[a-f0-9]+: 48 ba 88 88 88 88 88 88 88 88 movabs \$0x8888888888888888,%rdx
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+[a-f0-9]+: 48 89 54 01 08 mov %rdx,0x8\(%rcx,%rax,1\)
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+[a-f0-9]+: b8 ff ff ff ff mov \$0xffffffff,%eax
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+[a-f0-9]+: c3 ret
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#pass
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