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clang-p2996/llvm/test/tools/llvm-objcopy/ELF/change-entry-point.test
James Henderson 1562e4552c [llvm-objcopy][llvm-strip][test] Improve testing
This patch adds a number of new test cases that cover various
llvm-objcopy and llvm-strip features that had missing test coverage of
various descriptions:
* --add-section - checked the shdr properties, not just the content.
* Dedicated test case for --add-symbol when there are many sections.
* Show that --change-start accepts negative values without overflow.
  This was previously present but got lost between review versions.
* --dump-section - show that multiple sections can be dumped
  simultaneously to different files, and that an error is reported when
  a section cannot be found.
* --globalize-symbol(s) - show that symbols that are not mentioned are
  not globalized, if they would otherwise be, and that missing symbols
  from the list do not cause problems.
* --keep-global-symbol - show that the --regex option can be used in
  conjunction with this option.
* --keep-symbol - show that the --regex option can be used in
  conjunction with this option.
* --localize-symbol(s) - show that symbols that are not mentioned are
  not localized, if they would otherwise be, and that missing symbols
  from the list do not cause problems.
* --prefix-alloc-sections - show the behaviour of an empty string
  argument and multiple arguments.
* --prefix-symbols - show the behaviour of an empty string argument and
  multiple arguments. Also show the option applies to undefined symbols.
* --redefine-symbol - show that symbols with no name can be renamed,
  that it is not an error if a symbol is not specified, and that the
  option doesn't chain (i.e. --redefine-sym a=b --redefine-sym b=c does
  not redefine a as c).
* --rename-section - show that all section flags are preserved if none
  are specified. Also show that the option does not chain.
* --set-section-alignment - show that only specified sections have
  their alignments changed.
* --set-section-flags - show which section flags are preserved when this
  option is used. Also show that unspecified sections are not affected.
* --preserve-dates - show that -p is an alias of --preserve-dates.
* --strip-symbol - show that --regex works with this option for
  llvm-objcopy as well as llvm-strip.
* --strip-unneeded-symbol(s) - show more clearly that needed symbols are
  not stripped even if requested by this option.
* --allow-broken-links - show the sh_link of a symbol table is set to 0
  when its string table has been removed when this option is specified.
* --weaken-symbol(s) - show that symbols that are not mentioned are not
  weakened, if they would otherwise be, and that missing symbols from
  the list do not cause problems.
* --wildcard - show the wildcard behaviour for several options that were
  previously unchecked.

Reviewed by: alexshap

Differential Revision: https://reviews.llvm.org/D97666
2021-03-04 11:32:27 +00:00

60 lines
2.2 KiB
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# RUN: yaml2obj %s -o %t
# Test --set-start.
# RUN: llvm-objcopy --set-start 0x1000 %t %t2
# RUN: llvm-readobj --file-headers %t2 | FileCheck %s --check-prefix=SET
# RUN: llvm-objcopy --set-start 4096 %t %t3
# RUN: cmp %t2 %t3
# RUN: llvm-objcopy --set-start 0x100000000 %t %t4
# RUN: llvm-readobj --file-headers %t4 | FileCheck %s --check-prefix=SET-LARGE
# RUN: not llvm-objcopy --set-start -123 %t %t5 2>&1 | FileCheck %s --check-prefix=SET-ERR
# Test --change-start.
# RUN: llvm-objcopy --change-start 0x50 %t %t6
# RUN: llvm-readobj --file-headers %t6 | FileCheck %s --check-prefix=ADD
# RUN: llvm-objcopy --change-start 0x100000000 %t %t7
# RUN: llvm-readobj --file-headers %t7 | FileCheck %s --check-prefix=ADD-LARGE
# RUN: llvm-objcopy --change-start -128 %t %t8
# RUN: llvm-readobj --file-headers %t8 | FileCheck %s --check-prefix=SUB
# RUN: llvm-objcopy --change-start -4353 %t %t9
# RUN: llvm-readobj --file-headers %t9 | FileCheck %s --check-prefix=ADD-UNDERFLOW
# RUN: llvm-objcopy --change-start -0x1101 %t %t10
# RUN: cmp %t9 %t10
# RUN: not llvm-objcopy --change-start -xyz %t %t11 2>&1 | FileCheck %s --check-prefix=ADD-ERR
# Test --change-start after --set-start. Result should be 0x1150.
# RUN: llvm-objcopy --set-start 0x1000 --change-start 0x100 --change-start 0x50 %t %t12
# RUN: cmp %t6 %t12
# If --set-start is after --change-start then --change-start has no effect.
# RUN: llvm-objcopy --change-start 0x150 --set-start 0x1000 %t %t13
# RUN: cmp %t2 %t13
# --adjust-start is an alias for --change-start.
# RUN: llvm-objcopy --adjust-start -0x1101 %t %t14
# RUN: cmp %t10 %t14
!ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
Machine: EM_X86_64
Entry: 0x1100
Sections:
- Name: .text
Type: SHT_PROGBITS
Flags: [ SHF_ALLOC, SHF_EXECINSTR ]
Address: 0x1000
AddressAlign: 0x0000000000001000
Size: 0x200
# SET: Entry: 0x1000
# ADD: Entry: 0x1150
# SUB: Entry: 0x1080
# SET-ERR: error: bad entry point address: '-123'
# SET-LARGE: Entry: 0x100000000
# ADD-LARGE: Entry: 0x100001100
# ADD-ERR: error: bad entry point increment: '-xyz'
# ADD-UNDERFLOW: Entry: 0xFFFFFFFFFFFFFFFF