llvm/test/tools/llvm-objcopy/ELF/skip-symbol.test

## This test checks the functionality of options --skip-symbol and --skip-symbols.
# RUN: yaml2obj %s -o %t.o
# RUN: echo 'foo[2-3]' > %t.skip.regex

## Check --skip-symbol functionality when changing symbol bindings.
# RUN: llvm-objcopy %t.o %t2.o --localize-hidden --skip-symbol=foo3
# RUN: llvm-readelf -s %t2.o | FileCheck %s --check-prefix=LH-SYM
# LH-SYM-DAG: LOCAL  HIDDEN      1 foo1
# LH-SYM-DAG: LOCAL  HIDDEN      1 foo2
# LH-SYM-DAG: GLOBAL HIDDEN      1 foo3
# LH-SYM-DAG: LOCAL  HIDDEN      1 foo4
# LH-SYM-DAG: LOCAL  HIDDEN      1 foo5

## Check --skip-symbols functionality when changing symbol bindings.
# RUN: llvm-objcopy %t.o %t1.o --localize-hidden --skip-symbols=%t.skip.regex --regex
# RUN: llvm-readelf -s %t1.o | FileCheck %s --check-prefix=LH-SYMS
# LH-SYMS-DAG: LOCAL  HIDDEN      1 foo1
# LH-SYMS-DAG: GLOBAL HIDDEN      1 foo2
# LH-SYMS-DAG: GLOBAL HIDDEN      1 foo3
# LH-SYMS-DAG: LOCAL  HIDDEN      1 foo4
# LH-SYMS-DAG: LOCAL  HIDDEN      1 foo5

## Check --skip-symbol functionality when changing symbol names.
# RUN: echo -e "foo1 bar1\nfoo2 bar2" > %t.renames.list
# RUN: llvm-objcopy %t.o %t4.o --redefine-syms=%t.renames.list \
# RUN:   --skip-symbol='fo*' --wildcard
# RUN: llvm-readelf -s %t4.o | FileCheck %s --check-prefix=RS-SYM
# RS-SYM-DAG: foo1
# RS-SYM-DAG: foo2
# RS-SYM-DAG: foo3
# RS-SYM-DAG: foo4
# RS-SYM-DAG: foo5

## Check --skip-symbols functionality when changing symbol names.
# RUN: llvm-objcopy %t.o %t3.o --redefine-syms=%t.renames.list \
# RUN:   --skip-symbols=%t.skip.regex --regex
# RUN: llvm-readelf -s %t3.o | FileCheck %s --check-prefix=RS-SYMS
# RS-SYMS-DAG: bar1
# RS-SYMS-DAG: foo2
# RS-SYMS-DAG: foo3
# RS-SYMS-DAG: foo4
# RS-SYMS-DAG: foo5

## Check the functionality when using skip options multiple times.
# RUN: echo "foo3" > %t.symbol0.list
# RUN: echo "foo4" > %t.symbol1.list
# RUN: llvm-objcopy %t.o %t5.o --set-symbol-visibility='foo*'=internal --wildcard \
# RUN:   --skip-symbol=foo1 --skip-symbol=foo2 \
# RUN:   --skip-symbols=%t.symbol0.list --skip-symbols=%t.symbol1.list
# RUN: llvm-readelf -s %t5.o | FileCheck %s --check-prefix=BOTH
# BOTH-DAG: GLOBAL HIDDEN      1 foo1
# BOTH-DAG: GLOBAL HIDDEN      1 foo2
# BOTH-DAG: GLOBAL HIDDEN      1 foo3
# BOTH-DAG: GLOBAL HIDDEN      1 foo4
## Only foo5 is not skipped.
# BOTH-DAG: GLOBAL INTERNAL    1 foo5

## Check that using an invalid symbol name regex generates an error.
# RUN: echo '*.' > %t.symbols.regex
# RUN: not llvm-objcopy %t.o --skip-symbols=%t.symbols.regex --regex 2>&1 | \
# RUN:   FileCheck %s --check-prefix=SYMBOL
# RUN: not llvm-objcopy %t.o --skip-symbol='*.' --regex 2>&1 | \
# RUN:   FileCheck %s --check-prefix=SYMBOL
# SYMBOL: error: cannot compile regular expression '*.': repetition-operator operand invalid

## Check passing an invalid filename generates an error.
# RUN: not llvm-objcopy %t.o --skip-symbols=no_file 2>&1 | \
# RUN:   FileCheck %s --check-prefix=FILE -DMSG=%errc_ENOENT
# FILE: error: 'no_file': [[MSG]]

!ELF
FileHeader:
  Class:   ELFCLASS64
  Data:    ELFDATA2LSB
  Type:    ET_REL
  Machine: EM_X86_64
Sections:
  - Name: .text
    Type: SHT_PROGBITS
Symbols:
  - Name:    foo1
    Section: .text
    Binding: STB_GLOBAL
    Other:   [ STV_HIDDEN ]
  - Name:    foo2
    Section: .text
    Binding: STB_GLOBAL
    Other:   [ STV_HIDDEN ]
  - Name:    foo3
    Section: .text
    Binding: STB_GLOBAL
    Other:   [ STV_HIDDEN ]
  - Name:    foo4
    Section: .text
    Binding: STB_GLOBAL
    Other:   [ STV_HIDDEN ]
  - Name:    foo5
    Section: .text
    Binding: STB_GLOBAL
    Other:   [ STV_HIDDEN ]