| ## This test shows that when symbol/section names are optimized in the string |
| ## table to share the same entry, due to tail merging, llvm-objcopy operations |
| ## function correctly without corrupting the names of unchanged sections/symbols. |
| |
| # RUN: yaml2obj %s -o %t.o |
| ## Sanity check that the strings have been pooled. |
| # RUN: llvm-readobj %t.o --string-dump .strtab --string-dump .shstrtab \ |
| # RUN: | FileCheck %s --check-prefix=VALIDATE --implicit-check-not='] bar' --implicit-check-not=.blag |
| |
| # VALIDATE: String dump of section '.strtab': |
| # VALIDATE-NEXT: [ 1] bazfoobar |
| # VALIDATE-EMPTY: |
| # VALIDATE-NEXT: String dump of section '.shstrtab': |
| # VALIDATE-NEXT: [ 1] .blam.blah.blag |
| |
| ## Case 1: Basic copy. |
| # RUN: llvm-objcopy %t.o %t.copy |
| # RUN: llvm-readobj --section-headers --symbols %t.copy | FileCheck %s --check-prefix=COPY |
| |
| # COPY: Sections [ |
| # COPY: Name: .blam.blah.blag ( |
| # COPY: Name: .blah.blag ( |
| # COPY: Name: .blag ( |
| # COPY: Symbols [ |
| # COPY: Name: bar ( |
| # COPY: Name: foobar ( |
| # COPY: Name: bazfoobar ( |
| |
| ## Case 2: Rename section. |
| # RUN: llvm-objcopy %t.o %t.rename-section --rename-section .blah.blag=.blob.blab |
| # RUN: llvm-readobj --section-headers %t.rename-section \ |
| # RUN: | FileCheck %s --check-prefix=RENAME-SECTION |
| |
| # RENAME-SECTION: Sections [ |
| # RENAME-SECTION: Name: .blam.blah.blag ( |
| # RENAME-SECTION: Name: .blob.blab ( |
| # RENAME-SECTION: Name: .blag ( |
| |
| ## Case 3: Rename symbol. |
| # RUN: llvm-objcopy %t.o %t.rename-symbol --redefine-sym foobar=raboof |
| # RUN: llvm-readobj --symbols %t.rename-symbol \ |
| # RUN: | FileCheck %s --check-prefix=RENAME-SYMBOL |
| |
| # RENAME-SYMBOL: Symbols [ |
| # RENAME-SYMBOL: Name: bar ( |
| # RENAME-SYMBOL: Name: raboof ( |
| # RENAME-SYMBOL: Name: bazfoobar ( |
| |
| ## Case 4: Remove section. |
| # RUN: llvm-objcopy %t.o %t.remove-section -R .blah.blag |
| # RUN: llvm-readobj --section-headers %t.remove-section \ |
| # RUN: | FileCheck %s --check-prefix=REMOVE-SECTION --implicit-check-not .blah.blag |
| |
| # REMOVE-SECTION: Sections [ |
| # REMOVE-SECTION: Name: .blam.blah.blag ( |
| # REMOVE-SECTION: Name: .blag ( |
| |
| ## Case 5: Remove symbol. |
| # RUN: llvm-objcopy %t.o %t.remove-symbol -N foobar |
| # RUN: llvm-readobj --symbols %t.remove-symbol \ |
| # RUN: | FileCheck %s --check-prefix=REMOVE-SYMBOL --implicit-check-not='Name: foobar' |
| |
| # REMOVE-SYMBOL: Symbols [ |
| # REMOVE-SYMBOL: Name: bar ( |
| # REMOVE-SYMBOL: Name: bazfoobar ( |
| |
| --- !ELF |
| FileHeader: |
| Class: ELFCLASS64 |
| Data: ELFDATA2LSB |
| Type: ET_EXEC |
| Machine: EM_X86_64 |
| Sections: |
| - Name: .blam.blah.blag |
| Type: SHT_PROGBITS |
| - Name: .blah.blag |
| Type: SHT_PROGBITS |
| - Name: .blag |
| Type: SHT_PROGBITS |
| Symbols: |
| - Name: bar |
| - Name: foobar |
| - Name: bazfoobar |
