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llvm-project/llvm/test/MC/ELF/section-sym2.s

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Add back commits r219835 and a fixed version of r219829. The only difference from r219829 is using getOrCreateSectionSymbol(*ELFSec) instead of GetOrCreateSymbol(ELFSec->getSectionName()) in ELFObjectWriter which causes us to use the correct section symbol even if we have multiple sections with the same name. Original messages: r219829: Correctly handle references to section symbols. When processing assembly like .long .text we were creating a new undefined symbol .text. GAS on the other hand would handle that as a reference to the .text section. This patch implements that by creating the section symbols earlier so that they are visible during asm parsing. The patch also updates llvm-readobj to print the symbol number in the relocation dump so that the test can differentiate between two sections with the same name. r219835: Allow forward references to section symbols. llvm-svn: 220021
2014-10-17 09:48:58 +08:00
// RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o - | llvm-readobj -t -r --expand-relocs | FileCheck %s
// Test that we can forward reference a section.
mov .rodata, %rsi
.section .rodata
// CHECK:Relocations [
Update tests to not be as dependent on section numbers. Many of these predate llvm-readobj. With elf-dump we had to match a relocation to symbol number and symbol number to symbol name or section number. llvm-svn: 235015
2015-04-15 23:59:37 +08:00
// CHECK: Section {{.*}} .rela.text {
Add back commits r219835 and a fixed version of r219829. The only difference from r219829 is using getOrCreateSectionSymbol(*ELFSec) instead of GetOrCreateSymbol(ELFSec->getSectionName()) in ELFObjectWriter which causes us to use the correct section symbol even if we have multiple sections with the same name. Original messages: r219829: Correctly handle references to section symbols. When processing assembly like .long .text we were creating a new undefined symbol .text. GAS on the other hand would handle that as a reference to the .text section. This patch implements that by creating the section symbols earlier so that they are visible during asm parsing. The patch also updates llvm-readobj to print the symbol number in the relocation dump so that the test can differentiate between two sections with the same name. r219835: Allow forward references to section symbols. llvm-svn: 220021
2014-10-17 09:48:58 +08:00
// CHECK: Relocation {
// CHECK: Offset: 0x4
// CHECK: Type: R_X86_64_32S (11)
// CHECK: Symbol: .rodata
// CHECK: Addend: 0x0
// CHECK: }
// CHECK: }
// CHECK:]
// There is only one .rodata symbol
// CHECK:Symbols [
Fix the interpretation of a 0 st_name. The ELF spec is very clear: ----------------------------------------------------------------------------- If the value is non-zero, it represents a string table index that gives the symbol name. Otherwise, the symbol table entry has no name. -------------------------------------------------------------------------- In particular, a st_name of 0 most certainly doesn't mean that the symbol has the same name as the section. llvm-svn: 238899
2015-06-03 13:14:22 +08:00
// CHECK: Type: Section (0x3)
// CHECK: Section: .rodata
// CHECK-NOT: Section: .rodata