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

142 lines
3.7 KiB
Plaintext

# RUN: yaml2obj %s -o %t
# RUN: llvm-objcopy \
# RUN: --localize-symbol Global \
# RUN: -L GlobalUndef \
# RUN: -L Local \
# RUN: -L Weak \
# RUN: -L GlobalCommon \
# RUN: -L Missing \
# RUN: %t %t2
# RUN: llvm-readobj --symbols %t2 | FileCheck %s
# RUN: llvm-objcopy --regex --localize-symbol='[GLW].*' %t %t3
# RUN: cmp %t2 %t3
# RUN: echo " Global # comment " > %t-list.txt
# RUN: echo "GlobalUndef" >> %t-list.txt
# RUN: echo "Local" >> %t-list.txt
# RUN: echo "Weak" >> %t-list.txt
# RUN: echo "GlobalCommon" >> %t-list.txt
# RUN: echo "Missing" >> %t-list.txt
# RUN: echo " # comment " >> %t-list.txt
# RUN: llvm-objcopy --localize-symbols %t-list.txt %t %t4
# RUN: cmp %t2 %t4
# RUN: echo " .*al.* # Global + Local + GlobalCommon " > %t-list2.txt
# RUN: echo "Weak" >> %t-list2.txt
# RUN: llvm-objcopy --regex --localize-symbols %t-list2.txt %t %t5
# RUN: cmp %t2 %t5
!ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_REL
Machine: EM_X86_64
Sections:
- Name: .text
Type: SHT_PROGBITS
Flags: [ SHF_ALLOC, SHF_EXECINSTR ]
Address: 0x1000
AddressAlign: 0x0000000000000010
Size: 64
- Name: .data
Type: SHT_PROGBITS
Flags: [ SHF_ALLOC ]
Address: 0x2000
AddressAlign: 0x0000000000000010
Content: "0000000000000000"
Symbols:
- Name: Local
Type: STT_FUNC
Section: .text
Value: 0x1000
Size: 8
- Name: Global
Type: STT_FUNC
Size: 8
Section: .text
Value: 0x1010
Binding: STB_GLOBAL
- Name: GlobalUndef
Type: STT_FUNC
Binding: STB_GLOBAL
- Name: GlobalCommon
Type: STT_OBJECT
Index: SHN_COMMON
Value: 0x2006
Size: 2
Binding: STB_GLOBAL
- Name: Weak
Type: STT_FUNC
Size: 8
Section: .text
Value: 0x1008
Binding: STB_WEAK
- Name: Unmentioned
Section: .text
Binding: STB_GLOBAL
#CHECK: Symbols [
#CHECK-NEXT: Symbol {
#CHECK-NEXT: Name:
#CHECK-NEXT: Value: 0x0
#CHECK-NEXT: Size: 0
#CHECK-NEXT: Binding: Local
#CHECK-NEXT: Type: None
#CHECK-NEXT: Other: 0
#CHECK-NEXT: Section: Undefined
#CHECK-NEXT: }
#CHECK-NEXT: Symbol {
#CHECK-NEXT: Name: Local
#CHECK-NEXT: Value: 0x1000
#CHECK-NEXT: Size: 8
#CHECK-NEXT: Binding: Local
#CHECK-NEXT: Type: Function
#CHECK-NEXT: Other: 0
#CHECK-NEXT: Section: .text
#CHECK-NEXT: }
#CHECK-NEXT: Symbol {
#CHECK-NEXT: Name: Global
#CHECK-NEXT: Value: 0x1010
#CHECK-NEXT: Size: 8
#CHECK-NEXT: Binding: Local
#CHECK-NEXT: Type: Function
#CHECK-NEXT: Other: 0
#CHECK-NEXT: Section: .text
#CHECK-NEXT: }
#CHECK-NEXT: Symbol {
#CHECK-NEXT: Name: Weak
#CHECK-NEXT: Value: 0x1008
#CHECK-NEXT: Size: 8
#CHECK-NEXT: Binding: Local
#CHECK-NEXT: Type: Function
#CHECK-NEXT: Other: 0
#CHECK-NEXT: Section: .text
#CHECK-NEXT: }
#CHECK-NEXT: Symbol {
#CHECK-NEXT: Name: GlobalUndef
#CHECK-NEXT: Value:
#CHECK-NEXT: Size:
#CHECK-NEXT: Binding: Global
#CHECK-NEXT: Type: Function
#CHECK-NEXT: Other:
#CHECK-NEXT: Section: Undefined
#CHECK-NEXT: }
#CHECK-NEXT: Symbol {
#CHECK-NEXT: Name: GlobalCommon
#CHECK-NEXT: Value: 0x2006
#CHECK-NEXT: Size: 2
#CHECK-NEXT: Binding: Global
#CHECK-NEXT: Type: Object
#CHECK-NEXT: Other: 0
#CHECK-NEXT: Section: Common
#CHECK-NEXT: }
#CHECK-NEXT: Symbol {
#CHECK-NEXT: Name: Unmentioned
#CHECK-NEXT: Value:
#CHECK-NEXT: Size:
#CHECK-NEXT: Binding: Global
#CHECK-NEXT: Type:
#CHECK-NEXT: Other:
#CHECK-NEXT: Section: .text
#CHECK-NEXT: }
#CHECK-NEXT:]