| # This test makes sure that the .symtab_shndx section is automatically removed |
| # when it is not needed and added when it is. |
| |
| RUN: %python %p/../Inputs/ungzip.py %p/Inputs/many-sections.o.gz > %t.0 |
| RUN: echo 'foo' > %t |
| # many-sections.o contains sections from s1 to s65535, each with a symbol. |
| # Remove enough so that the last section with a symbol has index |
| # SHN_LORESERVE (i.e. s65280), and show the section hasn't been removed. |
| RUN: llvm-objcopy -R 's65[3-9][0-9][0-9]' -R 's6529[0-9]' -R 's6528[1-9]' %t.0 %t2 |
| RUN: llvm-readobj --sections %t2 | FileCheck --check-prefix=SHNDX %s |
| # Remove one more to cause removal of the section. |
| RUN: llvm-objcopy -R s65280 %t2 %t3 |
| RUN: llvm-readobj --sections %t3 | FileCheck --check-prefix=NOSHNDX %s |
| |
| # Add additional sections. No .symtab_shndx should be added, as they contain no |
| # symbols. |
| RUN: llvm-objcopy --add-section=newsec1=%t --add-section=newsec2=%t --add-section=newsec3=%t %t3 %t4 |
| RUN: llvm-readobj --sections %t4 | FileCheck --check-prefix=NOSHNDX %s |
| |
| # Add a symbol to one of these sections and show that the .symtab_shndx |
| # section has been created and that the new symbol has the right section index. |
| RUN: llvm-objcopy --add-symbol=newsym=newsec1:0 %t4 %t5 |
| RUN: llvm-readobj --symbols --sections %t5 | \ |
| RUN: FileCheck --check-prefixes=SHNDX,SHNDX-SYM -DSECTION=newsec1 %s |
| |
| # Show that removing and adding symbols, but not their sections, has the same |
| # effect regarding removal/addition of the .symtab_shndx section. |
| # FIXME: llvm-objcopy does not currently remove this section in these |
| # circumstances. See https://bugs.llvm.org/show_bug.cgi?id=49364 |
| # Test is left here to document the current behaviour. |
| RUN: llvm-objcopy -N 'sym65[3-9][0-9][0-9]' -N 'sym652[89][0-9]' -w %t.0 %t6 |
| RUN: llvm-readobj --sections %t6 | not FileCheck --check-prefix=NOSHNDX %s |
| # FIXME: Remove these test lines once the bug has been fixed. They simply show |
| # that the section is removed by a run without any further operations. |
| RUN: llvm-objcopy %t6 %t6b |
| RUN: llvm-readobj --sections %t6b | FileCheck --check-prefix=NOSHNDX %s |
| |
| # Add a symbol to ensure the section is reinstated. |
| RUN: llvm-objcopy --add-symbol=newsym=s65280:0 -w %t6 %t7 |
| RUN: llvm-readobj --sections --symbols %t7 | \ |
| RUN: FileCheck --check-prefixes=SHNDX,SHNDX-SYM -DSECTION=s65280 %s |
| |
| NOSHNDX-NOT: Name: .symtab_shndx |
| SHNDX: Name: .symtab_shndx |
| SHNDX-SYM: Name: newsym |
| SHNDX-SYM: Section: |
| SHNDX-SYM-SAME: [[SECTION]] |