mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2025-01-12 12:16:04 +08:00
9e65917652
Since the BND PLT has 230: 68 00 00 00 00 pushq $0x0 235: f2 e9 e5 ff ff ff bnd jmpq 220 <.plt> 23b: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) instead of 230: ff 25 e2 0d 20 00 jmpq *0x200de2(%rip) # 201018 <func> 236: 68 00 00 00 00 pushq $0x0 23b: e9 e0 ff ff ff jmpq 220 <.plt> its unwind info should be 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) bfd/ PR ld/21038 * elf64-x86-64.c (elf_x86_64_eh_frame_bnd_plt): New. (elf_x86_64_bnd_arch_bed): Use elf_x86_64_eh_frame_bnd_plt and elf_x86_64_eh_frame_plt_got. (elf_x86_64_size_dynamic_sections): Get unwind info from elf_x86_64_bnd_arch_bed for the BND PLT. ld/ PR ld/21038 * testsuite/ld-x86-64/pr21038a.d: New file. * testsuite/ld-x86-64/pr21038a.s: Likewise. * testsuite/ld-x86-64/pr21038b.d: Likewise. * testsuite/ld-x86-64/pr21038b.s: Likewise. * testsuite/ld-x86-64/x86-64.exp: Run pr21038a and pr21038b.
72 lines
1.9 KiB
Makefile
72 lines
1.9 KiB
Makefile
#name: PR ld/21038 (.plt.got)
|
|
#as: --64
|
|
#ld: -z bndplt -melf_x86_64 -shared -z relro --ld-generated-unwind-info
|
|
#objdump: -dw -Wf
|
|
|
|
.*: +file format .*
|
|
|
|
Contents of the .eh_frame section:
|
|
|
|
0+ 0000000000000014 00000000 CIE
|
|
Version: 1
|
|
Augmentation: "zR"
|
|
Code alignment factor: 1
|
|
Data alignment factor: -8
|
|
Return address column: 16
|
|
Augmentation data: 1b
|
|
|
|
DW_CFA_def_cfa: r7 \(rsp\) ofs 8
|
|
DW_CFA_offset: r16 \(rip\) at cfa-8
|
|
DW_CFA_nop
|
|
DW_CFA_nop
|
|
|
|
0+18 0000000000000014 0000001c FDE cie=00000000 pc=0000000000000238..0000000000000244
|
|
DW_CFA_nop
|
|
DW_CFA_nop
|
|
DW_CFA_nop
|
|
DW_CFA_nop
|
|
DW_CFA_nop
|
|
DW_CFA_nop
|
|
DW_CFA_nop
|
|
|
|
0+30 0000000000000024 00000034 FDE cie=00000000 pc=0000000000000220..0000000000000230
|
|
DW_CFA_def_cfa_offset: 16
|
|
DW_CFA_advance_loc: 6 to 0000000000000226
|
|
DW_CFA_def_cfa_offset: 24
|
|
DW_CFA_advance_loc: 10 to 0000000000000230
|
|
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\)
|
|
DW_CFA_nop
|
|
DW_CFA_nop
|
|
DW_CFA_nop
|
|
DW_CFA_nop
|
|
|
|
0+58 0000000000000014 0000005c FDE cie=00000000 pc=0000000000000230..0000000000000238
|
|
DW_CFA_nop
|
|
DW_CFA_nop
|
|
DW_CFA_nop
|
|
DW_CFA_nop
|
|
DW_CFA_nop
|
|
DW_CFA_nop
|
|
DW_CFA_nop
|
|
|
|
|
|
Disassembly of section .plt:
|
|
|
|
0+220 <.plt>:
|
|
+[a-f0-9]+: ff 35 e2 0d 20 00 pushq 0x200de2\(%rip\) # 201008 <_GLOBAL_OFFSET_TABLE_\+0x8>
|
|
+[a-f0-9]+: f2 ff 25 e3 0d 20 00 bnd jmpq \*0x200de3\(%rip\) # 201010 <_GLOBAL_OFFSET_TABLE_\+0x10>
|
|
+[a-f0-9]+: 0f 1f 00 nopl \(%rax\)
|
|
|
|
Disassembly of section .plt.got:
|
|
|
|
0+230 <.plt.got>:
|
|
+[a-f0-9]+: f2 ff 25 c1 0d 20 00 bnd jmpq \*0x200dc1\(%rip\) # 200ff8 <func>
|
|
+[a-f0-9]+: 90 nop
|
|
|
|
Disassembly of section .text:
|
|
|
|
0+238 <foo>:
|
|
+[a-f0-9]+: e8 f3 ff ff ff callq 230 <.plt.got>
|
|
+[a-f0-9]+: 48 8b 05 b4 0d 20 00 mov 0x200db4\(%rip\),%rax # 200ff8 <func>
|
|
#pass
|