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llvm-mirror/test/MC/ELF/basic-elf-32.s
Fangrui Song b9e92f17ed [MC][ELF] Allow STT_SECTION referencing SHF_MERGE on REL targets
This relands D64327 with a more specific workaround for R_386_GOTOFF
(gold<2.34 bug https://sourceware.org/bugzilla/show_bug.cgi?id=16794)

.debug_info has quite a few .debug_str relocations (R_386_32/R_ARM_ABS32).
The original workaround was too general and introduced too many .L symbols
used just as relocation targets.

From the original review:

  ... it reduced the size of a big ARM-32 debug image by 33%. It contained ~68M
  of relocations symbols out of total ~71M symbols (96% of symbols table was
  generated for relocations with symbol).
2020-12-20 18:37:14 -08:00

69 lines
1.4 KiB
ArmAsm

// RUN: llvm-mc -filetype=obj -triple i686-pc-linux-gnu %s -o - | llvm-readobj -h -S -r --symbols - | FileCheck %s
.text
.globl main
.align 16, 0x90
.type main,@function
main: # @main
# %bb.0:
subl $4, %esp
movl $.L.str1, (%esp)
calll puts
movl $.L.str2, (%esp)
calll puts
xorl %eax, %eax
addl $4, %esp
ret
.Ltmp0:
.size main, .Ltmp0-main
.type .L.str1,@object # @.str1
.section .rodata.str1.1,"aMS",@progbits,1
.L.str1:
.asciz "Hello"
.size .L.str1, 6
.type .L.str2,@object # @.str2
.L.str2:
.asciz "World!"
.size .L.str2, 7
.section .note.GNU-stack,"",@progbits
// CHECK: ElfHeader {
// CHECK: Class: 32-bit
// CHECK: DataEncoding: LittleEndian
// CHECK: FileVersion: 1
// CHECK: }
// CHECK: Sections [
// CHECK: Section {
// CHECK: Index: 0
// CHECK: Name: (0)
// CHECK: Name: .text
// CHECK: Name: .rel.text
// CHECK: Relocations [
// CHECK: Section {{.*}} .rel.text {
// CHECK: 0x6 R_386_32 .rodata.str1.1
// CHECK: 0xB R_386_PC32 puts
// CHECK: 0x12 R_386_32 .rodata.str1.1
// CHECK: 0x17 R_386_PC32 puts
// CHECK: }
// CHECK: ]
// CHECK: Symbols [
// CHECK: Symbol {
// CHECK: Name: main
// CHECK: Binding: Global
// CHECK: Type: Function
// CHECK: }
// CHECK: Symbol {
// CHECK: Name: puts
// CHECK: Binding: Global
// CHECK: Type: None
// CHECK: }