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binutils-gdb/ld/testsuite/ld-x86-64/pr19609-2b.d

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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
#source: pr19609-2.s
#as: --x32 -mrelax-relocations=yes
#ld: -melf32_x86_64 -Ttext=0x70000000 -Tdata=0xa0000000
x86-64: Add R_X86_64_converted_reloc_bit Add R_X86_64_converted_reloc_bit to relocation type to indicate if a relocation is converted from a GOTPCREL relocation. Linker now generates failed to convert GOTPCREL relocation; relink with --no-relax for all cases, including relocations against local symbols. bfd/ * elf64-x86-64.c (R_X86_64_converted_reloc_bit): New. (elf_x86_64_info_to_howto): Get the real relocation type by masking out R_X86_64_converted_reloc_bit. (elf_x86_64_check_tls_transition): Get the real relocation type by masking out R_X86_64_converted_reloc_bit. (elf_x86_64_convert_load_reloc): Set R_X86_64_converted_reloc_bit instead of setting converted_reloc. (elf_x86_64_relocate_section): Check R_X86_64_converted_reloc_bit instead of converted_reloc. Get the real relocation type by masking out R_X86_64_converted_reloc_bit. (elf_x86_64_link_setup_gnu_properties): Verify that the value of R_X86_64_converted_reloc_bit is valid. * elfxx-x86.h (converted_reloc): Removed. ld/ * testsuite/ld-x86-64/pr19609-2a.d: Updated. * testsuite/ld-x86-64/pr19609-2b.d: Likewise. * testsuite/ld-x86-64/pr19609-4a.d: Likewise. * testsuite/ld-x86-64/pr19609-4c.d: Likewise.
2017-09-06 20:06:35 +08:00
#error: failed to convert GOTPCREL relocation; relink with --no-relax
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