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-NEXT: [ 1] bazfoobar 12# VALIDATE-EMPTY: 13# VALIDATE-NEXT: String dump of section '.shstrtab': 14# VALIDATE-NEXT: [ 1] .blam.blah.blag 15 16## Case 1: Basic copy. 17# RUN: llvm-objcopy %t.o %t.copy 18# RUN: llvm-readobj --section-headers --symbols %t.copy | FileCheck %s --check-prefix=COPY 19 20# COPY: Sections [ 21# COPY: Name: .blam.blah.blag ( 22# COPY: Name: .blah.blag ( 23# COPY: Name: .blag ( 24# COPY: Symbols [ 25# COPY: Name: bar ( 26# COPY: Name: foobar ( 27# COPY: Name: bazfoobar ( 28 29## Case 2: Rename section. 30# RUN: llvm-objcopy %t.o %t.rename-section --rename-section .blah.blag=.blob.blab 31# RUN: llvm-readobj --section-headers %t.rename-section \ 32# RUN: | FileCheck %s --check-prefix=RENAME-SECTION 33 34# RENAME-SECTION: Sections [ 35# RENAME-SECTION: Name: .blam.blah.blag ( 36# RENAME-SECTION: Name: .blob.blab ( 37# RENAME-SECTION: Name: .blag ( 38 39## Case 3: Rename symbol. 40# RUN: llvm-objcopy %t.o %t.rename-symbol --redefine-sym foobar=raboof 41# RUN: llvm-readobj --symbols %t.rename-symbol \ 42# RUN: | FileCheck %s --check-prefix=RENAME-SYMBOL 43 44# RENAME-SYMBOL: Symbols [ 45# RENAME-SYMBOL: Name: bar ( 46# RENAME-SYMBOL: Name: raboof ( 47# RENAME-SYMBOL: Name: bazfoobar ( 48 49## Case 4: Remove section. 50# RUN: llvm-objcopy %t.o %t.remove-section -R .blah.blag 51# RUN: llvm-readobj --section-headers %t.remove-section \ 52# RUN: | FileCheck %s --check-prefix=REMOVE-SECTION --implicit-check-not .blah.blag 53 54# REMOVE-SECTION: Sections [ 55# REMOVE-SECTION: Name: .blam.blah.blag ( 56# REMOVE-SECTION: Name: .blag ( 57 58## Case 5: Remove symbol. 59# RUN: llvm-objcopy %t.o %t.remove-symbol -N foobar 60# RUN: llvm-readobj --symbols %t.remove-symbol \ 61# RUN: | FileCheck %s --check-prefix=REMOVE-SYMBOL --implicit-check-not='Name: foobar' 62 63# REMOVE-SYMBOL: Symbols [ 64# REMOVE-SYMBOL: Name: bar ( 65# REMOVE-SYMBOL: Name: bazfoobar ( 66 67--- !ELF 68FileHeader: 69 Class: ELFCLASS64 70 Data: ELFDATA2LSB 71 Type: ET_EXEC 72 Machine: EM_X86_64 73Sections: 74 - Name: .blam.blah.blag 75 Type: SHT_PROGBITS 76 - Name: .blah.blag 77 Type: SHT_PROGBITS 78 - Name: .blag 79 Type: SHT_PROGBITS 80Symbols: 81 - Name: bar 82 - Name: foobar 83 - Name: bazfoobar 84