mirror of
https://github.com/llvm/llvm-project.git
synced 2025-04-25 01:16:05 +00:00
71dcd9bd04
When processing dependent libraries, if there's a directory of the same name as the library being searched for, either in the current directory or earlier in the search order, LLD will try to open it and report an error. This is because LLD uses file existence check. To address this issue we reverse the order, searching the library by basename first and only considering search paths later, and current directory last. Differential Revision: https://reviews.llvm.org/D118498
76 lines
3.3 KiB
ArmAsm
76 lines
3.3 KiB
ArmAsm
# REQUIRES: x86
|
|
|
|
# RUN: llvm-mc -filetype=obj -triple=x86_64 %s -o %t.o
|
|
# RUN: echo ".global foo; foo:" | \
|
|
# RUN: llvm-mc -filetype=obj -triple=x86_64 - -o %tfoo.o
|
|
# RUN: rm -rf %t.dir %t.cwd
|
|
# RUN: mkdir -p %t.dir
|
|
|
|
## Error if dependent libraries cannot be found.
|
|
# RUN: not ld.lld %t.o -o /dev/null 2>&1 | FileCheck %s -DOBJ=%t.o --check-prefix MISSING
|
|
# MISSING: error: [[OBJ]]: unable to find library from dependent library specifier: foo.a
|
|
# MISSING-NEXT: error: [[OBJ]]: unable to find library from dependent library specifier: bar
|
|
|
|
## Can ignore dependent libraries.
|
|
# RUN: not ld.lld %t.o -o /dev/null --no-dependent-libraries 2>&1 | FileCheck %s --check-prefix IGNORE
|
|
# IGNORE: error: undefined symbol: foo
|
|
|
|
## -r links preserve dependent libraries.
|
|
# RUN: ld.lld %t.o %t.o -r -o %t-r.o
|
|
# RUN: not ld.lld %t-r.o -o /dev/null 2>&1 | sort | FileCheck %s -DOBJ=%t-r.o --check-prefixes MINUSR
|
|
# MINUSR: error: [[OBJ]]: unable to find library from dependent library specifier: bar
|
|
# MINUSR-NEXT: error: [[OBJ]]: unable to find library from dependent library specifier: foo.a
|
|
# MINUSR-NOT: unable to find library from dependent library specifier
|
|
|
|
## Dependent libraries searched for symbols after libraries on the command line.
|
|
# RUN: mkdir -p %t.cwd
|
|
# RUN: cd %t.cwd
|
|
# RUN: llvm-ar rc %t.dir/foo.a %tfoo.o
|
|
# RUN: touch %t.dir/libbar.so
|
|
# RUN: cp %t.dir/foo.a %t.cwd/libcmdline.a
|
|
# RUN: ld.lld %t.o libcmdline.a -o /dev/null -L %t.dir --trace 2>&1 | \
|
|
# RUN: FileCheck %s -DOBJ=%t.o -DSO=%t.dir --check-prefix CMDLINE \
|
|
# RUN: --implicit-check-not=foo.a --implicit-check-not=libbar.so
|
|
# CMDLINE: [[OBJ]]
|
|
# CMDLINE-NEXT: {{^libcmdline\.a}}
|
|
|
|
## LLD tries to resolve dependent library specifiers in the following order:
|
|
## 1) The name, prefixed with "lib" and suffixed with ".so" or ".a" in a
|
|
## library search path. This means that a directive of "foo.a" could lead
|
|
## to a library named "libfoo.a.a" being linked in.
|
|
## 2) The literal name in a library search path.
|
|
## 3) The literal name in the current working directory.
|
|
## When using library search paths for dependent libraries, LLD follows the same
|
|
## rules as for libraries specified on the command line.
|
|
# RUN: cp %t.dir/foo.a %t.cwd/foo.a
|
|
# RUN: cp %t.dir/foo.a %t.dir/libfoo.a.a
|
|
|
|
# RUN: ld.lld %t.o -o /dev/null -L %t.dir --trace 2>&1 | \
|
|
# RUN: FileCheck %s -DOBJ=%t.o -DDIR=%t.dir --check-prefix=LIBA-DIR \
|
|
# RUN: --implicit-check-not=foo.a --implicit-check-not=libbar.so
|
|
|
|
# LIBA-DIR: [[OBJ]]
|
|
# LIBA-DIR-NEXT: [[DIR]]{{[\\/]}}libfoo.a.a
|
|
|
|
# RUN: rm %t.dir/libfoo.a.a
|
|
# RUN: ld.lld %t.o -o /dev/null -L %t.dir --trace 2>&1 | \
|
|
# RUN: FileCheck %s -DOBJ=%t.o -DDIR=%t.dir --check-prefix=PLAIN-DIR \
|
|
# RUN: --implicit-check-not=foo.a --implicit-check-not=libbar.so
|
|
|
|
# PLAIN-DIR: [[OBJ]]
|
|
# PLAIN-DIR-NEXT: [[DIR]]{{[\\/]}}foo.a
|
|
|
|
# RUN: rm %t.dir/foo.a
|
|
# RUN: ld.lld %t.o -o /dev/null -L %t.dir --trace 2>&1 | \
|
|
# RUN: FileCheck %s -DOBJ=%t.o -DDIR=%t.dir --check-prefix=CWD \
|
|
# RUN: --implicit-check-not=foo.a --implicit-check-not=libbar.so
|
|
|
|
# CWD: [[OBJ]]
|
|
# CWD-NEXT: {{^foo\.a}}
|
|
|
|
call foo
|
|
.section ".deplibs","MS",@llvm_dependent_libraries,1
|
|
.asciz "foo.a"
|
|
## Show that an unneeded archive must be present but may not be linked in.
|
|
.asciz "bar"
|