forked from OSchip/llvm-project
99 lines
2.7 KiB
ArmAsm
99 lines
2.7 KiB
ArmAsm
# REQUIRES: x86
|
|
# RUN: llvm-mc -triple x86_64-windows-msvc %s -filetype=obj -o %t.obj
|
|
# RUN: lld-link %t.obj -guard:cf -out:%t.exe -opt:icf -entry:main
|
|
# RUN: llvm-readobj --file-headers --coff-load-config %t.exe | FileCheck %s --check-prefix=CHECK
|
|
|
|
# This assembly is meant to mimic what CL emits for this kind of C code:
|
|
# int icf1() { return 42; }
|
|
# int icf2() { return 42; }
|
|
# int (*fp1)() = &icf1;
|
|
# int (*fp2)() = &icf2;
|
|
# int main() {
|
|
# return fp1();
|
|
# return fp2();
|
|
# }
|
|
|
|
# 'icf1' and 'icf2' are address taken, but should be merged into one entry.
|
|
# There are two entries in the table because 'main' is included.
|
|
|
|
# CHECK: ImageBase: 0x140000000
|
|
# CHECK: LoadConfig [
|
|
# CHECK: SEHandlerTable: 0x0
|
|
# CHECK: SEHandlerCount: 0
|
|
# CHECK: GuardCFCheckFunction: 0x0
|
|
# CHECK: GuardCFCheckDispatch: 0x0
|
|
# CHECK: GuardCFFunctionTable: 0x14000{{.*}}
|
|
# CHECK: GuardCFFunctionCount: 2
|
|
# CHECK: GuardFlags: 0x500
|
|
# CHECK: GuardAddressTakenIatEntryTable: 0x0
|
|
# CHECK: GuardAddressTakenIatEntryCount: 0
|
|
# CHECK: GuardLongJumpTargetTable: 0x0
|
|
# CHECK: GuardLongJumpTargetCount: 0
|
|
# CHECK: ]
|
|
# CHECK: GuardFidTable [
|
|
# CHECK-NEXT: 0x14000{{.*}}
|
|
# CHECK-NEXT: 0x14000{{.*}}
|
|
# CHECK-NEXT: ]
|
|
|
|
# There should be no .gfids section in the output exectuable when we link with
|
|
# -guard:cf or with no -guard:cf/nolongjmp flag.
|
|
# RUN: llvm-readobj --sections %t.exe | FileCheck %s --check-prefix NOGFIDSEC
|
|
# RUN: lld-link %t.obj -out:%t.exe -opt:icf -entry:main
|
|
# RUN: llvm-readobj --sections %t.exe | FileCheck %s --check-prefix NOGFIDSEC
|
|
|
|
# NOGFIDSEC: Sections [
|
|
# NOGFIDSEC: Section {
|
|
# NOGFIDSEC: Name: .text
|
|
# NOGFIDSEC-NOT: Name: .gfids
|
|
|
|
# Indicate that gfids are present.
|
|
.def @feat.00; .scl 3; .type 0; .endef
|
|
.globl @feat.00
|
|
@feat.00 = 0x800
|
|
|
|
.def icf1; .scl 2; .type 32; .endef
|
|
.section .text,"xr",one_only,icf1
|
|
.global icf1
|
|
icf1:
|
|
movl $42, %eax
|
|
retq
|
|
|
|
.def icf2; .scl 2; .type 32; .endef
|
|
.section .text,"xr",one_only,icf2
|
|
.global icf2
|
|
icf2:
|
|
movl $42, %eax
|
|
retq
|
|
|
|
# Take their two addresses.
|
|
.data
|
|
.globl fp1
|
|
fp1:
|
|
.quad icf1
|
|
.globl fp2
|
|
fp2:
|
|
.quad icf2
|
|
|
|
.section .gfids$y,"dr"
|
|
.symidx icf1
|
|
.symidx icf2
|
|
|
|
.def main; .scl 2; .type 32; .endef
|
|
.section .text,"xr",one_only,main
|
|
.globl main
|
|
main:
|
|
callq *fp1(%rip)
|
|
callq *fp2(%rip)
|
|
xor %eax, %eax
|
|
retq
|
|
|
|
.section .rdata,"dr"
|
|
.globl _load_config_used
|
|
_load_config_used:
|
|
.long 256
|
|
.fill 124, 1, 0
|
|
.quad __guard_fids_table
|
|
.quad __guard_fids_count
|
|
.long __guard_flags
|
|
.fill 128, 1, 0
|