binutils-gdb/ld/testsuite/ld-x86-64/ilp32-4.d

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#source: start.s
#as: --x32
PR ld/12570 include/ * bfdlink.h (struct bfd_link_info): Add no_ld_generated_unwind_info option. ld/ * emultempl/elf32.em (OPTION_LD_GENERATED_UNWIND_INFO, OPTION_NO_LD_GENERATED_UNWIND_INFO): Define. (gld${EMULATION_NAME}_handle_option): Handle --ld-generated-unwind-info and --no-ld-generated-unwind-info. * ld.texinfo (--ld-generated-unwind-info, --no-ld-generated-unwind-info): Document. bfd/ * elf-eh-frame.c (_bfd_elf_parse_eh_frame): Allow no relocations at all for linker created .eh_frame sections. (_bfd_elf_discard_section_eh_frame): Handle linker created .eh_frame sections with no relocations. * elf64-x86-64.c: Include dwarf2.h. (elf_x86_64_eh_frame_plt): New variable. (PLT_CIE_LENGTH, PLT_FDE_LENGTH, PLT_FDE_START_OFFSET, PLT_FDE_LEN_OFFSET): Define. (struct elf_x86_64_link_hash_table): Add plt_eh_frame field. (elf_x86_64_create_dynamic_sections): Create and fill in .eh_frame section for .plt section. (elf_x86_64_size_dynamic_sections): Write .plt section size into .eh_frame FDE covering .plt section. (elf_x86_64_finish_dynamic_sections): Write .plt section start into .eh_frame FDE covering .plt section. Call _bfd_elf_write_section_eh_frame on htab->plt_eh_frame section. (elf_backend_plt_alignment): Define to 4. * elf32-i386.c: Include dwarf2.h. (elf_i386_eh_frame_plt): New variable. (PLT_CIE_LENGTH, PLT_FDE_LENGTH, PLT_FDE_START_OFFSET, PLT_FDE_LEN_OFFSET): Define. (struct elf_i386_link_hash_table): Add plt_eh_frame field. (elf_i386_create_dynamic_sections): Create and fill in .eh_frame section for .plt section. (elf_i386_size_dynamic_sections): Write .plt section size into .eh_frame FDE covering .plt section. (elf_i386_finish_dynamic_sections): Write .plt section start into .eh_frame FDE covering .plt section. Call _bfd_elf_write_section_eh_frame on htab->plt_eh_frame section. (elf_backend_plt_alignment): Define to 4. ld/testsuite/ * ld-x86-64/x86-64.exp: Link some testcases with --no-ld-generated-unwind-info. * ld-x86-64/tlsbin.rd: Add --no-ld-generated-unwind-info to ld comment. * ld-x86-64/tlsdesc.dd: Likewise. * ld-x86-64/tlspic.dd: Likewise. * ld-x86-64/tlsdesc.sd: Likewise. * ld-x86-64/tlspic.rd: Likewise. * ld-x86-64/tlsbindesc.rd: Likewise. * ld-x86-64/tlsbindesc.sd: Likewise. * ld-x86-64/tlsbin.td: Likewise. * ld-x86-64/tlsdesc.pd: Likewise. * ld-x86-64/tlsdesc.td: Likewise. * ld-x86-64/tlsbindesc.dd: Likewise. * ld-x86-64/tlsbin.dd: Likewise. * ld-x86-64/tlsgdesc.rd: Likewise. * ld-x86-64/tlspic.sd: Likewise. * ld-x86-64/tlsbindesc.td: Likewise. * ld-x86-64/tlspic.td: Likewise. * ld-x86-64/tlsbin.sd: Likewise. * ld-x86-64/ilp32-4.d: Likewise. * ld-x86-64/tlsgdesc.dd: Add --no-ld-generated-unwind-info to ld comment. Adjust. * ld-x86-64/tlsdesc.rd: Likewise. * ld-x86-64/tlsgd6.dd: Adjust. * ld-x86-64/tlsgd5.dd: Likewise. * ld-i386/i386.exp: Link some testcases with --no-ld-generated-unwind-info. * ld-i386/tlsbin.rd: Add --no-ld-generated-unwind-info to ld comment.. * ld-i386/tlsdesc.dd: Likewise. * ld-i386/tlspic.dd: Likewise. * ld-i386/tlsdesc.sd: Likewise. * ld-i386/tlsgdesc.dd: Likewise. * ld-i386/tlsnopic.sd: Likewise. * ld-i386/tlspic.rd: Likewise. * ld-i386/tlsdesc.rd: Likewise. * ld-i386/tlsbindesc.rd: Likewise. * ld-i386/tlsbindesc.sd: Likewise. * ld-i386/tlsbin.td: Likewise. * ld-i386/tlsdesc.td: Likewise. * ld-i386/tlsnopic.dd: Likewise. * ld-i386/tlsbindesc.dd: Likewise. * ld-i386/tlsbin.dd: Likewise. * ld-i386/tlsgdesc.rd: Likewise. * ld-i386/tlspic.sd: Likewise. * ld-i386/tlsnopic.rd: Likewise. * ld-i386/tlsbindesc.td: Likewise. * ld-i386/tlspic.td: Likewise. * ld-i386/tlsbin.sd: Likewise.
2011-06-20 21:18:52 +08:00
#ld: -m elf32_x86_64 -shared --no-ld-generated-unwind-info
#readelf: -d -S --wide
There are 10 section headers, starting at offset 0x22c:
Section Headers:
\[Nr\] Name Type Addr Off Size ES Flg Lk Inf Al
\[ 0\] NULL 00000000 000000 000000 00 0 0 0
\[ 1\] .hash HASH 00000094 000094 000030 04 A 2 0 4
\[ 2\] .dynsym DYNSYM 000000c4 0000c4 000070 10 A 3 2 4
\[ 3\] .dynstr STRTAB 00000134 000134 00001d 00 A 0 0 1
\[ 4\] .rela.dyn RELA 00000154 000154 00000c 0c A 2 0 4
\[ 5\] .text PROGBITS 00000160 000160 000005 00 AX 0 0 4
\[ 6\] .dynamic DYNAMIC 00200168 000168 000078 08 WA 3 0 4
\[ 7\] .shstrtab STRTAB 00000000 0001e0 00004a 00 0 0 1
\[ 8\] .symtab SYMTAB 00000000 0003bc 0000e0 10 9 9 4
\[ 9\] .strtab STRTAB 00000000 00049c 000043 00 0 0 1
Key to Flags:
W \(write\), A \(alloc\), X \(execute\), M \(merge\), S \(strings\), l \(large\)
I \(info\), L \(link order\), G \(group\), T \(TLS\), E \(exclude\), x \(unknown\)
O \(extra OS processing required\) o \(OS specific\), p \(processor specific\)
Dynamic section at offset 0x168 contains 10 entries:
Tag Type Name/Value
0x00000004 \(HASH\) 0x94
0x00000005 \(STRTAB\) 0x134
0x00000006 \(SYMTAB\) 0xc4
0x0000000a \(STRSZ\) 29 \(bytes\)
0x0000000b \(SYMENT\) 16 \(bytes\)
0x00000007 \(RELA\) 0x154
0x00000008 \(RELASZ\) 12 \(bytes\)
0x00000009 \(RELAENT\) 12 \(bytes\)
0x00000016 \(TEXTREL\) 0x0
0x00000000 \(NULL\) 0x0