binutils-gdb/ld/testsuite/ld-i386/pr20830.d
Jan Beulich 36938cabf0 x86: avoid attaching suffixes to unambiguous insns
"Unambiguous" is is in particular taking as reference the assembler,
which also accepts certain insns - despite them allowing for varying
operand size, and hence in principle being ambiguous - without any
suffix. For example, from the very beginning of the life of x86-64 I had
trouble understanding why a plain and simple RET had to be printed as
RETQ. In case someone really used the 16-bit form, RETW disambiguates
the two quite fine.
2020-07-15 08:53:55 +02:00

61 lines
1.6 KiB
Makefile

#name: PR ld/20830 (.plt.got)
#as: --32
#ld: -melf_i386 -shared -z relro --ld-generated-unwind-info --hash-style=sysv -z noseparate-code
#objdump: -dw -Wf
.*: +file format .*
Contents of the .eh_frame section:
0+ 00000014 00000000 CIE
Version: 1
Augmentation: "zR"
Code alignment factor: 1
Data alignment factor: -4
Return address column: 8
Augmentation data: 1b
DW_CFA_def_cfa: r4 \(esp\) ofs 4
DW_CFA_offset: r8 \(eip\) at cfa-4
DW_CFA_nop
DW_CFA_nop
0+18 00000010 0000001c FDE cie=00000000 pc=00000128..00000133
DW_CFA_nop
DW_CFA_nop
DW_CFA_nop
0+2c 00000020 00000030 FDE cie=00000000 pc=00000110..00000120
DW_CFA_def_cfa_offset: 8
DW_CFA_advance_loc: 6 to 00000116
DW_CFA_def_cfa_offset: 12
DW_CFA_advance_loc: 10 to 00000120
DW_CFA_def_cfa_expression \(DW_OP_breg4 \(esp\): 4; DW_OP_breg8 \(eip\): 0; DW_OP_lit15; DW_OP_and; DW_OP_lit11; DW_OP_ge; DW_OP_lit2; DW_OP_shl; DW_OP_plus\)
0+50 00000010 00000054 FDE cie=00000000 pc=00000120..00000128
DW_CFA_nop
DW_CFA_nop
DW_CFA_nop
Disassembly of section .plt:
0+110 <.plt>:
+[a-f0-9]+: ff b3 04 00 00 00 push 0x4\(%ebx\)
+[a-f0-9]+: ff a3 08 00 00 00 jmp \*0x8\(%ebx\)
+[a-f0-9]+: 00 00 add %al,\(%eax\)
...
Disassembly of section .plt.got:
0+120 <func@plt>:
+[a-f0-9]+: ff a3 fc ff ff ff jmp \*-0x4\(%ebx\)
+[a-f0-9]+: 66 90 xchg %ax,%ax
Disassembly of section .text:
0+128 <foo>:
+[a-f0-9]+: e8 f3 ff ff ff call 120 <func@plt>
+[a-f0-9]+: 8b 83 fc ff ff ff mov -0x4\(%ebx\),%eax
#pass