91 lines
3.4 KiB
Text
91 lines
3.4 KiB
Text
# REQUIRES: x86
|
|
## Verify that we can correctly wrap symbols produced only during LTO codegen
|
|
## and unreferenced before then.
|
|
|
|
# RUN: rm -rf %t && split-file %s %t
|
|
# RUN: llvm-mc -triple x86_64-elf --filetype=obj -o %t/unwind.o %t/unwind.s
|
|
# RUN: ld.lld -shared -o %t/libunwind.so -soname libunwind.so %t/unwind.o
|
|
# RUN: llvm-as -o %t/resume.bc %t/resume.ll
|
|
# RUN: ld.lld -shared -o %t/libresume.so -soname libresume.so %t/resume.bc \
|
|
# RUN: %t/libunwind.so --wrap _Unwind_Resume
|
|
# RUN: llvm-objdump --no-print-imm-hex --dynamic-reloc --disassemble %t/libresume.so | \
|
|
# RUN: FileCheck --check-prefix=UNWIND-DISASM %s
|
|
# RUN: llvm-readelf --dyn-syms %t/libresume.so | \
|
|
# RUN: FileCheck --check-prefix=UNWIND-DYNSYM %s
|
|
|
|
# UNWIND-DISASM: [[#%x,RELOC:]] R_X86_64_JUMP_SLOT __wrap__Unwind_Resume
|
|
# UNWIND-DISASM-LABEL: <_Z1fv>:
|
|
# UNWIND-DISASM: callq {{.*}}<__wrap__Unwind_Resume@plt>
|
|
# UNWIND-DISASM-LABEL: <__wrap__Unwind_Resume@plt>:
|
|
# UNWIND-DISASM-NEXT: jmpq *[[#]](%rip) # [[#%#x,RELOC]]
|
|
|
|
# UNWIND-DYNSYM: Symbol table '.dynsym' contains 4 entries:
|
|
# UNWIND-DYNSYM: NOTYPE LOCAL DEFAULT UND
|
|
# UNWIND-DYNSYM-NEXT: NOTYPE GLOBAL DEFAULT UND throw
|
|
# UNWIND-DYNSYM-NEXT: NOTYPE GLOBAL DEFAULT UND __wrap__Unwind_Resume
|
|
# UNWIND-DYNSYM-NEXT: FUNC GLOBAL DEFAULT 9 _Z1fv
|
|
|
|
# RUN: llvm-mc -triple x86_64-elf -filetype=obj -o %t/malloc.o %t/malloc.s
|
|
# RUN: ld.lld -shared -o %t/libmalloc.so -soname libmalloc.so %t/malloc.o
|
|
# RUN: llvm-mc -triple x86_64-elf -filetype=obj -o %t/emutls.o %t/emutls.s
|
|
# RUN: llvm-as -o %t/usetls.bc %t/usetls.ll
|
|
# RUN: ld.lld -shared -o %t/libusetls.so \
|
|
# RUN: %t/usetls.bc %t/libmalloc.so \
|
|
# RUN: --start-lib %t/emutls.o -mllvm -emulated-tls --wrap malloc
|
|
# RUN: llvm-objdump --no-print-imm-hex --dynamic-reloc --disassemble %t/libusetls.so | \
|
|
# RUN: FileCheck --check-prefix=USETLS-DISASM %s
|
|
# RUN: llvm-readelf --dyn-syms %t/libusetls.so | \
|
|
# RUN: FileCheck --check-prefix=USETLS-DYNSYM %s
|
|
|
|
# USETLS-DISASM: [[#%x,RELOC:]] R_X86_64_JUMP_SLOT __wrap_malloc
|
|
# USETLS-DISASM-LABEL: <__emutls_get_address>:
|
|
# USETLS-DISASM-NEXT: jmp{{.*}}<__wrap_malloc@plt>
|
|
# USETLS-DISASM-LABEL: <__wrap_malloc@plt>:
|
|
# USETLS-DISASM-NEXT: jmpq *[[#]](%rip) # [[#%#x,RELOC]]
|
|
|
|
# USETLS-DYNSYM: Symbol table '.dynsym' contains 5 entries:
|
|
# USETLS-DYNSYM: NOTYPE LOCAL DEFAULT UND
|
|
# USETLS-DYNSYM-NEXT: NOTYPE GLOBAL DEFAULT UND __wrap_malloc
|
|
# USETLS-DYNSYM-NEXT: FUNC GLOBAL DEFAULT 6 f
|
|
# USETLS-DYNSYM-NEXT: NOTYPE GLOBAL DEFAULT 6 __emutls_get_address
|
|
|
|
#--- unwind.s
|
|
.globl _Unwind_Resume
|
|
.globl __wrap__Unwind_Resume
|
|
_Unwind_Resume:
|
|
__wrap__Unwind_Resume:
|
|
retq
|
|
|
|
#--- resume.ll
|
|
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
|
|
target triple = "x86_64-unknown-linux-gnu"
|
|
define dso_local void @_Z1fv() optnone noinline personality ptr @throw {
|
|
invoke void @throw()
|
|
to label %unreachable unwind label %lpad
|
|
lpad:
|
|
%1 = landingpad { ptr, i32 }
|
|
cleanup
|
|
resume { ptr, i32 } %1
|
|
unreachable:
|
|
unreachable
|
|
}
|
|
declare void @throw()
|
|
|
|
#--- malloc.s
|
|
.globl malloc
|
|
malloc:
|
|
retq
|
|
|
|
#--- emutls.s
|
|
.globl __emutls_get_address
|
|
__emutls_get_address:
|
|
jmp malloc@plt
|
|
|
|
#--- usetls.ll
|
|
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
|
|
target triple = "x86_64-unknown-linux-gnu"
|
|
@x = dso_local thread_local global i32 0, align 4
|
|
define dso_local i32 @f() {
|
|
%loaded = load i32, ptr @x, align 4
|
|
ret i32 %loaded
|
|
}
|