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382aae0632
Since value of non-preemptible absolute symbol (SHN_ABS) won't change, only relocations, which can be resolved as absolute value + addend, and GOTPCREL relocations, where absolute value + addend is stored in the GOT slot, against non-preemptible absolute symbol are allowed in PIE and shared library. Also convert load relocation to R_386_32, R_X86_64_32S or R_X86_64_32 for relocation against non-preemptible absolute symbol. Don't convert to R_X86_64_32S nor R_X86_64_32 for non-preemptible absolute symbol if they overflow. bfd/ PR ld/25749 PR ld/25754 * elf32-i386.c (elf_i386_convert_load_reloc): Convert load relocation to R_386_32 for relocation against non-preemptible absolute symbol. (elf_i386_check_relocs): Call _bfd_elf_x86_valid_reloc_p. Don't allocate dynamic relocation for non-preemptible absolute symbol. (elf_i386_relocate_section): Pass sec to GENERATE_DYNAMIC_RELOCATION_P. * elf64-x86-64.c (R_X86_64_converted_reloc_bit): Moved. (elf_x86_64_convert_load_reloc): Covert load relocation to R_X86_64_32S or R_X86_64_32 for relocation against non-preemptible absolute symbol. Don't convert to R_X86_64_32S nor R_X86_64_32 for non-preemptible absolute symbol if they overflow. (elf_x86_64_check_relocs): Call _bfd_elf_x86_valid_reloc_p. Set tls_type for GOT slot to GOT_ABS for non-preemptible absolute symbol. Don't allocate dynamic relocation for non-preemptible absolute symbol. (elf_x86_64_relocate_section): Don't generate relative relocation for GOTPCREL relocations aganst local absolute symbol. Pass sec to GENERATE_DYNAMIC_RELOCATION_P. * elfxx-x86.c (elf_x86_allocate_dynrelocs): No dynamic relocation against non-preemptible absolute symbol. (_bfd_elf_x86_valid_reloc_p): New function. (_bfd_x86_elf_size_dynamic_sections): No dynamic relocation for GOT_ABS GOT slot. * elfxx-x86.h (GENERATE_DYNAMIC_RELOCATION_P): Add an SEC argument. Don't generate dynamic relocation against non-preemptible absolute symbol. (ABS_SYMBOL_P): New. (GENERATE_RELATIVE_RELOC_P): Don't generate relative relocation against non-preemptible absolute symbol. (GOT_ABS): New. (R_X86_64_converted_reloc_bit): New. Moved from elf64-x86-64.c. (_bfd_elf_x86_valid_reloc_p): New. ld/ PR ld/25749 PR ld/25754 * testsuite/ld-elf/linux-x86.exp: Run ld/25749 tests. * testsuite/ld-elf/pr25749-1.c: New file. * testsuite/ld-elf/pr25749-1a.c: Likewise. * testsuite/ld-elf/pr25749-1b.c: Likewise. * testsuite/ld-elf/pr25749-1b.err: Likewise. * testsuite/ld-elf/pr25749-1c.c: Likewise. * testsuite/ld-elf/pr25749-1d.c: Likewise. * testsuite/ld-elf/pr25749-2.c: Likewise. * testsuite/ld-elf/pr25749-2a.s: Likewise. * testsuite/ld-elf/pr25749-2b.s: Likewise. * testsuite/ld-elf/pr25749.rd: Likewise. * testsuite/ld-elf/pr25754-1a.c: Likewise. * testsuite/ld-elf/pr25754-1b.s: Likewise. * testsuite/ld-elf/pr25754-2a.c: Likewise. * testsuite/ld-elf/pr25754-2b.err: Likewise. * testsuite/ld-elf/pr25754-2b.s: Likewise. * testsuite/ld-elf/pr25754-3a.c: Likewise. * testsuite/ld-elf/pr25754-3b.s: Likewise. * testsuite/ld-elf/pr25754-4a.c: Likewise. * testsuite/ld-elf/pr25754-4b.s: Likewise. * testsuite/ld-elf/pr25754-4c.s: Likewise. * testsuite/ld-elf/pr25754-5a.c: Likewise. * testsuite/ld-elf/pr25754-5b.s: Likewise. * testsuite/ld-elf/pr25754-5c.s: Likewise. * testsuite/ld-elf/pr25754-6a.c: Likewise. * testsuite/ld-elf/pr25754-6b.s: Likewise. * testsuite/ld-x86-64/pr19609-6a.d: Don't expect linker error.
14 lines
297 B
D
14 lines
297 B
D
#source: pr19609-6.s
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#as: --64 -mrelax-relocations=yes
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#ld: -melf_x86_64 --defsym foobar=0x80000000
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#objdump: -dw
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.*: +file format .*
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Disassembly of section .text:
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[a-f0-9]+ <_start>:
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[ ]*[a-f0-9]+: 48 8b 05 ([0-9a-f]{2} ){4} * mov 0x[a-f0-9]+\(%rip\),%rax # [a-f0-9]+ <.got>
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#pass
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