1## This test shows that when symbol/section names are optimized in the string 2## table to share the same entry, due to tail merging, llvm-objcopy operations 3## function correctly without corrupting the names of unchanged sections/symbols. 4 5# RUN: yaml2obj %s -o %t.o 6## Sanity check that the strings have been pooled. 7# RUN: llvm-readobj %t.o --string-dump .strtab --string-dump .shstrtab \ 8# RUN: | FileCheck %s --check-prefix=VALIDATE --implicit-check-not=bar --implicit-check-not=.blag 9 10# VALIDATE: String dump of section '.strtab': 11# VALIDATE: bazfoobar 12# VALIDATE: String dump of section '.shstrtab': 13# VALIDATE: .blam.blah.blag 14 15## Case 1: Basic copy. 16# RUN: llvm-objcopy %t.o %t.copy 17# RUN: llvm-readobj --section-headers --symbols %t.copy | FileCheck %s --check-prefix=COPY 18 19# COPY: Sections [ 20# COPY: Name: .blam.blah.blag ( 21# COPY: Name: .blah.blag ( 22# COPY: Name: .blag ( 23# COPY: Symbols [ 24# COPY: Name: bar ( 25# COPY: Name: foobar ( 26# COPY: Name: bazfoobar ( 27 28## Case 2: Rename section. 29# RUN: llvm-objcopy %t.o %t.rename-section --rename-section .blah.blag=.blob.blab 30# RUN: llvm-readobj --section-headers %t.rename-section \ 31# RUN: | FileCheck %s --check-prefix=RENAME-SECTION 32 33# RENAME-SECTION: Sections [ 34# RENAME-SECTION: Name: .blam.blah.blag ( 35# RENAME-SECTION: Name: .blob.blab ( 36# RENAME-SECTION: Name: .blag ( 37 38## Case 3: Rename symbol. 39# RUN: llvm-objcopy %t.o %t.rename-symbol --redefine-sym foobar=raboof 40# RUN: llvm-readobj --symbols %t.rename-symbol \ 41# RUN: | FileCheck %s --check-prefix=RENAME-SYMBOL 42 43# RENAME-SYMBOL: Symbols [ 44# RENAME-SYMBOL: Name: bar ( 45# RENAME-SYMBOL: Name: raboof ( 46# RENAME-SYMBOL: Name: bazfoobar ( 47 48## Case 4: Remove section. 49# RUN: llvm-objcopy %t.o %t.remove-section -R .blah.blag 50# RUN: llvm-readobj --section-headers %t.remove-section \ 51# RUN: | FileCheck %s --check-prefix=REMOVE-SECTION --implicit-check-not .blah.blag 52 53# REMOVE-SECTION: Sections [ 54# REMOVE-SECTION: Name: .blam.blah.blag ( 55# REMOVE-SECTION: Name: .blag ( 56 57## Case 5: Remove symbol. 58# RUN: llvm-objcopy %t.o %t.remove-symbol -N foobar 59# RUN: llvm-readobj --symbols %t.remove-symbol \ 60# RUN: | FileCheck %s --check-prefix=REMOVE-SYMBOL --implicit-check-not foobar 61 62# REMOVE-SYMBOL: Symbols [ 63# REMOVE-SYMBOL: Name: bar ( 64# REMOVE-SYMBOL: Name: bazfoobar ( 65 66--- !ELF 67FileHeader: 68 Class: ELFCLASS64 69 Data: ELFDATA2LSB 70 Type: ET_EXEC 71 Machine: EM_X86_64 72Sections: 73 - Name: .blam.blah.blag 74 Type: SHT_PROGBITS 75 - Name: .blah.blag 76 Type: SHT_PROGBITS 77 - Name: .blag 78 Type: SHT_PROGBITS 79Symbols: 80 - Name: bar 81 - Name: foobar 82 - Name: bazfoobar 83