1562e4552c
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
179 lines
4.8 KiB
Plaintext
179 lines
4.8 KiB
Plaintext
# RUN: yaml2obj %s -o %t
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# RUN: cp %t %t1
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# RUN: llvm-objcopy --strip-unneeded %t %t2
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## Verify that llvm-objcopy has not modified the input.
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# RUN: cmp %t %t1
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# RUN: llvm-readobj --symbols %t2 | FileCheck %s
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## Verify that --keep-file-symbols works together with --strip-unneeded
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# RUN: llvm-objcopy --keep-file-symbols --strip-unneeded %t %t2b
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# RUN: llvm-readobj --symbols %t2b | FileCheck %s --check-prefixes=CHECK,FILESYM
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# RUN: llvm-objcopy --strip-unneeded-symbol=bar \
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# RUN: %t %t3
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# RUN: llvm-readobj --symbols %t3 | FileCheck %s --check-prefixes=STRIP-BAR,REMAIN
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# RUN: llvm-objcopy --regex --strip-unneeded-symbol='.*' %t %t4
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# RUN: cmp %t2 %t4
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## Verify that --strip-unneeded-symbols removes all unneeded symbols listed in
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## the file, but not those that aren't.
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## In this case, fileSymbol isn't mentioned (so isn't removed), barbaz is
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## mentioned, but isn't removed (because it is needed) and bar, foobar and
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## foobaz are mentioned and removed.
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# RUN: echo " bar # bar " > %t.list.txt
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# RUN: echo "foobar" >> %t.list.txt
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# RUN: echo "foobaz" >> %t.list.txt
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# RUN: echo " # comment " >> %t.list.txt
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# RUN: echo "barbaz" >> %t.list.txt
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# RUN: llvm-objcopy --strip-unneeded-symbols %t.list.txt %t %t5
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# RUN: cmp %t2b %t5
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# RUN: echo " .* # * - remove all " > %t.list2.txt
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# RUN: llvm-objcopy --regex --strip-unneeded-symbols %t.list2.txt %t %t6
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# RUN: cmp %t2 %t6
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## Verify that llvm-strip modifies the symbol table the same way.
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# RUN: llvm-strip --strip-unneeded %t
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# RUN: cmp %t %t2
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!ELF
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FileHeader:
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Class: ELFCLASS64
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Data: ELFDATA2LSB
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Type: ET_REL
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Machine: EM_X86_64
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Sections:
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- Name: .text
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Type: SHT_PROGBITS
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Flags: [ SHF_ALLOC, SHF_EXECINSTR ]
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Address: 0x1000
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AddressAlign: 0x0000000000000010
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Size: 64
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- Name: .group
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Type: SHT_GROUP
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Link: .symtab
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AddressAlign: 0x0000000000000004
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Info: barfoo
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Members:
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- SectionOrType: GRP_COMDAT
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- SectionOrType: .text
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- Name: .rel.text
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Type: SHT_REL
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Link: .symtab
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Info: .text
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Relocations:
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- Offset: 0x1000
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Symbol: foo
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Type: R_X86_64_PC32
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Symbols:
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- Name: foo
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Type: STT_FUNC
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Section: .text
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Value: 0x1000
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Size: 8
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- Name: bar
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Type: STT_FUNC
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Size: 8
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Section: .text
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Value: 0x1008
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- Name: barfoo
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Type: STT_FUNC
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Size: 8
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Section: .text
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Value: 0x1010
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- Name: fileSymbol
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Type: STT_FILE
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Index: SHN_ABS
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- Name: sectionSymbol
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Type: STT_SECTION
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- Name: foobar
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Type: STT_FUNC
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Binding: STB_GLOBAL
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- Name: barbaz
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Type: STT_FUNC
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Size: 8
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Section: .text
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Value: 0x1020
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Binding: STB_GLOBAL
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- Name: baz
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Type: STT_FUNC
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Size: 8
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Section: .text
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Value: 0x1018
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Binding: STB_WEAK
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- Name: foobaz
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Type: STT_FUNC
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Binding: STB_WEAK
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#CHECK: Symbols [
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#CHECK-NEXT: Symbol {
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#CHECK-NEXT: Name:
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#CHECK-NEXT: Value: 0x0
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#CHECK-NEXT: Size: 0
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#CHECK-NEXT: Binding: Local
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#CHECK-NEXT: Type: None
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#CHECK-NEXT: Other: 0
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#CHECK-NEXT: Section: Undefined
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#CHECK-NEXT: }
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#CHECK-NEXT: Symbol {
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#CHECK-NEXT: Name: foo
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#CHECK-NEXT: Value: 0x1000
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#CHECK-NEXT: Size: 8
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#CHECK-NEXT: Binding: Local
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#CHECK-NEXT: Type: Function
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#CHECK-NEXT: Other: 0
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#CHECK-NEXT: Section: .text
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#CHECK-NEXT: }
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#CHECK-NEXT: Symbol {
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#CHECK-NEXT: Name: barfoo
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#CHECK-NEXT: Value: 0x1010
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#CHECK-NEXT: Size: 8
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#CHECK-NEXT: Binding: Local
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#CHECK-NEXT: Type: Function
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#CHECK-NEXT: Other: 0
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#CHECK-NEXT: Section: .text
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#CHECK-NEXT: }
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#FILESYM-NEXT:Symbol {
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#FILESYM-NEXT: Name: fileSymbol
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#FILESYM-NEXT: Value: 0x0
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#FILESYM-NEXT: Size: 0
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#FILESYM-NEXT: Binding: Local
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#FILESYM-NEXT: Type: File
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#FILESYM-NEXT: Other: 0
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#FILESYM-NEXT: Section: Absolute
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#FILESYM-NEXT:}
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#CHECK-NEXT: Symbol {
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#CHECK-NEXT: Name: sectionSymbol
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#CHECK-NEXT: Value: 0x0
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#CHECK-NEXT: Size: 0
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#CHECK-NEXT: Binding: Local
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#CHECK-NEXT: Type: Section
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#CHECK-NEXT: Other: 0
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#CHECK-NEXT: Section: Undefined
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#CHECK-NEXT: }
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#CHECK-NEXT: Symbol {
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#CHECK-NEXT: Name: barbaz
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#CHECK-NEXT: Value: 0x1020
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#CHECK-NEXT: Size: 8
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#CHECK-NEXT: Binding: Global
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#CHECK-NEXT: Type: Function
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#CHECK-NEXT: Other: 0
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#CHECK-NEXT: Section: .text
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#CHECK-NEXT: }
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#CHECK-NEXT: Symbol {
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#CHECK-NEXT: Name: baz
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#CHECK-NEXT: Value: 0x1018
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#CHECK-NEXT: Size: 8
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#CHECK-NEXT: Binding: Weak
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#CHECK-NEXT: Type: Function
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#CHECK-NEXT: Other: 0
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#CHECK-NEXT: Section: .text
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#CHECK-NEXT: }
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#CHECK-NEXT:]
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#STRIP-BAR-NOT: Name: bar ({{.*}})
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#REMAIN: Name: foobar
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#REMAIN: Name: foobaz
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