llvm-project/lld/test/MachO/export-options.s

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# REQUIRES: x86
# RUN: rm -rf %t; split-file %s %t
# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-macos %t/default.s -o %t/default.o
# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-macos %t/lazydef.s -o %t/lazydef.o
# RUN: llvm-ar --format=darwin rcs %t/lazydef.a %t/lazydef.o
## Check that mixing exported and unexported symbol options yields an error
# RUN: not %lld -dylib %t/default.o -o /dev/null \
# RUN: -exported_symbol a -unexported_symbol b 2>&1 | \
# RUN: FileCheck --check-prefix=CONFLICT %s
# CONFLICT: error: cannot use both -exported_symbol* and -unexported_symbol* options
# CONFLICT-NEXT: >>> ignoring unexports
## Check that an exported literal name with no symbol definition yields an error
## but that an exported glob-pattern with no matching symbol definition is OK
# RUN: not %lld -dylib %t/default.o -o /dev/null \
# RUN: -exported_symbol absent_literal \
# RUN: -exported_symbol absent_gl?b 2>&1 | \
# RUN: FileCheck --check-prefix=UNDEF %s
# UNDEF: error: undefined symbol: absent_literal
# UNDEF-NEXT: >>> referenced by -exported_symbol(s_list)
# UNDEF-NOT: error: {{.*}} absent_gl{{.}}b
## Check that dynamic_lookup suppresses the error
# RUN: %lld -dylib %t/default.o -undefined dynamic_lookup -o %t/dyn-lookup \
# RUN: -exported_symbol absent_literal
# RUN: llvm-objdump --macho --syms %t/dyn-lookup | FileCheck %s --check-prefix=DYN
# DYN: *UND* absent_literal
## Check that exported literal symbols are present in output's
## symbol table, even lazy symbols which would otherwise be omitted
# RUN: %lld -dylib %t/default.o %t/lazydef.a -o %t/lazydef \
# RUN: -exported_symbol _keep_globl \
# RUN: -exported_symbol _keep_lazy
# RUN: llvm-objdump --syms %t/lazydef | \
# RUN: FileCheck --check-prefix=EXPORT %s
# EXPORT-DAG: g F __TEXT,__text _keep_globl
# EXPORT-DAG: g F __TEXT,__text _keep_lazy
## Check that exported symbol is global
# RUN: not %lld -dylib %t/default.o -o /dev/null \
# RUN: -exported_symbol _private_extern 2>&1 | \
# RUN: FileCheck --check-prefix=PRIVATE %s
# PRIVATE: error: cannot export hidden symbol _private_extern
## Check that the export trie is unaltered
# RUN: %lld -dylib %t/default.o -o %t/default
# RUN: llvm-objdump --macho --exports-trie %t/default | \
# RUN: FileCheck --check-prefix=DEFAULT %s
# DEFAULT-LABEL: Exports trie:
# DEFAULT-DAG: _hide_globl
# DEFAULT-DAG: _keep_globl
# DEFAULT-NOT: _private_extern
## Check that the export trie is shaped by an allow list and then
## by a deny list. Both lists are designed to yield the same result.
## Check the allow list
# RUN: %lld -dylib %t/default.o -o %t/allowed \
# RUN: -exported_symbol _keep_globl
# RUN: llvm-objdump --macho --exports-trie %t/allowed | \
# RUN: FileCheck --check-prefix=TRIE %s
# RUN: llvm-nm -m %t/allowed | \
# RUN: FileCheck --check-prefix=NM %s
## Check the deny list
# RUN: %lld -dylib %t/default.o -o %t/denied \
# RUN: -unexported_symbol _hide_globl
# RUN: llvm-objdump --macho --exports-trie %t/denied | \
# RUN: FileCheck --check-prefix=TRIE %s
# RUN: llvm-nm -m %t/denied | \
# RUN: FileCheck --check-prefix=NM %s
# TRIE-LABEL: Exports trie:
# TRIE-DAG: _keep_globl
# TRIE-NOT: _hide_globl
# TRIE-NOT: _private_extern
# NM-DAG: external _keep_globl
# NM-DAG: non-external (was a private external) _hide_globl
# NM-DAG: non-external (was a private external) _private_extern
# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-macos \
# RUN: %t/symdefs.s -o %t/symdefs.o
## Check that only string-literal patterns match
## Check that comments and blank lines are stripped from symbol list
# RUN: %lld -dylib %t/symdefs.o -o %t/literal \
# RUN: -exported_symbols_list %t/literals.txt
# RUN: llvm-objdump --macho --exports-trie %t/literal | \
# RUN: FileCheck --check-prefix=LITERAL %s
# LITERAL-DAG: literal_only
# LITERAL-DAG: literal_also
# LITERAL-DAG: globby_also
# LITERAL-NOT: globby_only
## Check that only glob patterns match
## Check that comments and blank lines are stripped from symbol list
# RUN: %lld -dylib %t/symdefs.o -o %t/globby \
# RUN: -exported_symbols_list %t/globbys.txt
# RUN: llvm-objdump --macho --exports-trie %t/globby | \
# RUN: FileCheck --check-prefix=GLOBBY %s
# GLOBBY-DAG: literal_also
# GLOBBY-DAG: globby_only
# GLOBBY-DAG: globby_also
# GLOBBY-NOT: literal_only
#--- default.s
.globl _keep_globl, _hide_globl
_keep_globl:
retq
_hide_globl:
retq
.private_extern _private_extern
_private_extern:
retq
_private:
retq
#--- lazydef.s
.globl _keep_lazy
_keep_lazy:
retq
#--- symdefs.s
.globl literal_only, literal_also, globby_only, globby_also
literal_only:
retq
literal_also:
retq
globby_only:
retq
globby_also:
retq
#--- literals.txt
literal_only # comment
literal_also
# globby_only
globby_also
#--- globbys.txt
# literal_only
l?ter[aeiou]l_*[^y] # comment
*gl?bby_*