70c23e232e
Currently, when reporting unresolved symbols in shared libraries, if an undefined symbol is firstly seen in a regular object file that shadows the reference for the same symbol in a shared object. As a result, the error for the unresolved symbol in the shared library is not reported. If referencing sections in regular object files are discarded because of '--gc-sections', no reports about such symbols are generated, and the linker finishes successfully, generating an output image that fails on the run. The patch fixes the issue by keeping symbols, which should be checked, for each shared library separately. Differential Revision: https://reviews.llvm.org/D101996
47 lines
2.1 KiB
ArmAsm
47 lines
2.1 KiB
ArmAsm
# REQUIRES: x86
|
|
|
|
# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
|
|
# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux \
|
|
# RUN: %p/Inputs/allow-shlib-undefined.s -o %t1.o
|
|
# RUN: ld.lld -shared %t1.o -o %t.so
|
|
|
|
# RUN: ld.lld --allow-shlib-undefined %t.o %t.so -o /dev/null
|
|
# RUN: not ld.lld --no-allow-shlib-undefined %t.o %t.so -o /dev/null 2>&1 | FileCheck %s
|
|
# Executable defaults to --no-allow-shlib-undefined
|
|
# RUN: not ld.lld %t.o %t.so -o /dev/null 2>&1 | FileCheck %s
|
|
# RUN: ld.lld %t.o %t.so --noinhibit-exec -o /dev/null 2>&1 | FileCheck %s --check-prefix=WARN
|
|
# RUN: ld.lld %t.o %t.so --warn-unresolved-symbols -o /dev/null 2>&1 | FileCheck %s --check-prefix=WARN
|
|
# -shared defaults to --allow-shlib-undefined
|
|
# RUN: ld.lld -shared %t.o %t.so -o /dev/null
|
|
|
|
# RUN: echo | llvm-mc -filetype=obj -triple=x86_64-unknown-linux -o %tempty.o
|
|
# RUN: ld.lld -shared %tempty.o -o %tempty.so
|
|
# RUN: ld.lld -shared %t1.o %tempty.so -o %t2.so
|
|
# RUN: ld.lld --no-allow-shlib-undefined %t.o %t2.so -o /dev/null
|
|
|
|
# DSO with undefines:
|
|
# should link with or without any of these options.
|
|
# RUN: ld.lld -shared %t1.o -o /dev/null
|
|
# RUN: ld.lld -shared --allow-shlib-undefined %t1.o -o /dev/null
|
|
# RUN: ld.lld -shared --no-allow-shlib-undefined %t1.o -o /dev/null
|
|
|
|
## Check that the error is reported if an unresolved symbol is first seen in a
|
|
## regular object file.
|
|
# RUN: echo 'callq _unresolved@PLT' | \
|
|
# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux - -o %tref.o
|
|
# RUN: not ld.lld --gc-sections %t.o %tref.o %t.so -o /dev/null 2>&1 | FileCheck %s
|
|
|
|
## Check that the error is reported for each shared library where the symbol
|
|
## is referenced.
|
|
# RUN: cp %t.so %t2.so
|
|
# RUN: not ld.lld %t.o %t.so %t2.so -o /dev/null 2>&1 | \
|
|
# RUN: FileCheck %s --check-prefixes=CHECK,CHECK2
|
|
|
|
.globl _start
|
|
_start:
|
|
callq _shared@PLT
|
|
|
|
# CHECK: error: {{.*}}.so: undefined reference to _unresolved [--no-allow-shlib-undefined]
|
|
# CHECK2: error: {{.*}}2.so: undefined reference to _unresolved [--no-allow-shlib-undefined]
|
|
# WARN: warning: {{.*}}.so: undefined reference to _unresolved [--no-allow-shlib-undefined]
|