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8361ed4d6b
Also generate unwind info for the .plt.bnd section. Sine it is the same as unwind info for the .plt.got section, we use unwind info for the .plt.got section to cover the the .plt.bnd section. bfd/ PR ld/21038 * elf64-x86-64.c (elf_x86_64_link_hash_table): Add plt_bnd_eh_frame. (elf_x86_64_check_relocs): Create .eh_frame section for the .plt.bnd section. (elf_x86_64_size_dynamic_sections): Allocate and initialize .eh_frame section for the .plt.bnd section. (elf_x86_64_finish_dynamic_sections): Adjust .eh_frame section for the .plt.bnd section. ld/ PR ld/21038 * testsuite/ld-x86-64/pr21038b.d: Updated. * testsuite/ld-x86-64/pr21038c.d: New file. * testsuite/ld-x86-64/pr21038c.s: Likewise. * testsuite/ld-x86-64/x86-64.exp: Run pr21038c.
91 lines
2.5 KiB
Makefile
91 lines
2.5 KiB
Makefile
#name: PR ld/21038 (.plt.got and .plt.bnd)
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#as: --64
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#ld: -z bndplt -melf_x86_64 -shared -z relro --ld-generated-unwind-info
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#objdump: -dw -Wf
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.*: +file format .*
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Contents of the .eh_frame section:
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0+ 0000000000000014 00000000 CIE
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Version: 1
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Augmentation: "zR"
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Code alignment factor: 1
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Data alignment factor: -8
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Return address column: 16
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Augmentation data: 1b
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DW_CFA_def_cfa: r7 \(rsp\) ofs 8
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DW_CFA_offset: r16 \(rip\) at cfa-8
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DW_CFA_nop
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DW_CFA_nop
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0+18 0000000000000014 0000001c FDE cie=00000000 pc=0000000000000290..00000000000002a1
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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0+30 0000000000000024 00000034 FDE cie=00000000 pc=0000000000000260..0000000000000280
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DW_CFA_def_cfa_offset: 16
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DW_CFA_advance_loc: 6 to 0000000000000266
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DW_CFA_def_cfa_offset: 24
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DW_CFA_advance_loc: 10 to 0000000000000270
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DW_CFA_def_cfa_expression \(DW_OP_breg7 \(rsp\): 8; DW_OP_breg16 \(rip\): 0; DW_OP_lit15; DW_OP_and; DW_OP_lit5; DW_OP_ge; DW_OP_lit3; DW_OP_shl; DW_OP_plus\)
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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0+58 0000000000000014 0000005c FDE cie=00000000 pc=0000000000000288..0000000000000290
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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0+70 0000000000000014 00000074 FDE cie=00000000 pc=0000000000000280..0000000000000288
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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Disassembly of section .plt:
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0+260 <.plt>:
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+[a-f0-9]+: ff 35 a2 0d 20 00 pushq 0x200da2\(%rip\) # 201008 <_GLOBAL_OFFSET_TABLE_\+0x8>
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+[a-f0-9]+: f2 ff 25 a3 0d 20 00 bnd jmpq \*0x200da3\(%rip\) # 201010 <_GLOBAL_OFFSET_TABLE_\+0x10>
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+[a-f0-9]+: 0f 1f 00 nopl \(%rax\)
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+[a-f0-9]+: 68 00 00 00 00 pushq \$0x0
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+[a-f0-9]+: f2 e9 e5 ff ff ff bnd jmpq 260 <.plt>
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+[a-f0-9]+: 0f 1f 44 00 00 nopl 0x0\(%rax,%rax,1\)
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Disassembly of section .plt.got:
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0+280 <.plt.got>:
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+[a-f0-9]+: f2 ff 25 71 0d 20 00 bnd jmpq \*0x200d71\(%rip\) # 200ff8 <func1>
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+[a-f0-9]+: 90 nop
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Disassembly of section .plt.bnd:
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0+288 <func2@plt>:
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+[a-f0-9]+: f2 ff 25 89 0d 20 00 bnd jmpq \*0x200d89\(%rip\) # 201018 <func2>
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+[a-f0-9]+: 90 nop
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Disassembly of section .text:
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0+290 <foo>:
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+[a-f0-9]+: e8 eb ff ff ff callq 280 <.plt.got>
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+[a-f0-9]+: e8 ee ff ff ff callq 288 <func2@plt>
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+[a-f0-9]+: 48 8b 05 57 0d 20 00 mov 0x200d57\(%rip\),%rax # 200ff8 <func1>
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#pass
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