forked from OSchip/llvm-project
117 lines
3.7 KiB
ArmAsm
117 lines
3.7 KiB
ArmAsm
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# REQUIRES: x86
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# Make a DLL that exports exportfn1.
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# RUN: yaml2obj %p/Inputs/export.yaml -o %basename_t-exp.obj
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# RUN: lld-link /out:%basename_t-exp.dll /dll %basename_t-exp.obj /export:exportfn1 /implib:%basename_t-exp.lib
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# Make an object file that imports exportfn1.
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# RUN: llvm-mc -triple x86_64-windows-msvc %s -filetype=obj -o %basename_t.obj
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# Check that the Guard address-taken IAT entry tables are propagated to the final executable.
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# RUN: lld-link %basename_t.obj -guard:cf -entry:main -out:%basename_t-nodelay.exe %basename_t-exp.lib
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# RUN: llvm-readobj --file-headers --coff-load-config %basename_t-nodelay.exe | FileCheck %s --check-prefix CHECK
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# CHECK: ImageBase: 0x140000000
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# CHECK: LoadConfig [
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# CHECK: GuardCFFunctionTable: 0x140002114
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# CHECK: GuardCFFunctionCount: 1
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# CHECK: GuardFlags: 0x10500
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# CHECK: GuardAddressTakenIatEntryTable: 0x140002118
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# CHECK: GuardAddressTakenIatEntryCount: 1
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# CHECK: ]
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# CHECK: GuardFidTable [
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# CHECK-NEXT: 0x14000{{.*}}
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# CHECK-NEXT: ]
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# CHECK: GuardIatTable [
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# CHECK-NEXT: 0x14000{{.*}}
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# CHECK-NEXT: ]
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# Check that the additional load thunk symbol is added to the GFIDs table.
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# RUN: lld-link %basename_t.obj -guard:cf -entry:main -out:%basename_t-delay.exe %basename_t-exp.lib -alternatename:__delayLoadHelper2=main -delayload:%basename_t-exp.dll
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# RUN: llvm-readobj --file-headers --coff-load-config %basename_t-delay.exe | FileCheck %s --check-prefix DELAY-CHECK
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# DELAY-CHECK: ImageBase: 0x140000000
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# DELAY-CHECK: LoadConfig [
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# DELAY-CHECK: GuardCFFunctionTable: 0x140002114
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# DELAY-CHECK: GuardCFFunctionCount: 2
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# DELAY-CHECK: GuardFlags: 0x10500
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# DELAY-CHECK: GuardAddressTakenIatEntryTable: 0x14000211C
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# DELAY-CHECK: GuardAddressTakenIatEntryCount: 1
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# DELAY-CHECK: ]
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# DELAY-CHECK: GuardFidTable [
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# DELAY-CHECK-NEXT: 0x14000{{.*}}
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# DELAY-CHECK-NEXT: 0x14000{{.*}}
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# DELAY-CHECK-NEXT: ]
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# DELAY-CHECK: GuardIatTable [
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# DELAY-CHECK-NEXT: 0x14000{{.*}}
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# DELAY-CHECK-NEXT: ]
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# This assembly is reduced from C code like:
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# __declspec(noinline)
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# void IndirectCall(BOOL (func)(HANDLE)) {
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# (*func)(NULL);
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# }
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# int main(int argc, char** argv) {
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# IndirectCall(exportfn1);
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# }
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.text
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.def @feat.00;
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.scl 3;
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.type 0;
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.endef
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.globl @feat.00
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.set @feat.00, 2048
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.def IndirectCall; .scl 2; .type 32; .endef
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.globl IndirectCall # -- Begin function IndirectCall
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.p2align 4, 0x90
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IndirectCall: # @IndirectCall
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# %bb.0:
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subq $40, %rsp
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movq %rcx, 32(%rsp)
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movq 32(%rsp), %rax
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movq %rax, %rdx # This would otherwise have be: movq __guard_dispatch_icall_fptr(%rip), %rdx
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xorl %ecx, %ecx
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callq *%rdx
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nop
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addq $40, %rsp
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retq
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# -- End function
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.def main; .scl 2; .type 32; .endef
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.globl main # -- Begin function main
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.p2align 4, 0x90
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main: # @main
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# %bb.0:
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subq $56, %rsp
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movq __imp_exportfn1(%rip), %rax
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movq %rdx, 48(%rsp)
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movl %ecx, 44(%rsp)
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movq %rax, %rcx
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callq IndirectCall
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xorl %eax, %eax
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addq $56, %rsp
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retq
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# -- End function
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.section .gfids$y,"dr"
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.section .giats$y,"dr"
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.symidx __imp_exportfn1
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.section .gljmp$y,"dr"
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# Load configuration directory entry (winnt.h _IMAGE_LOAD_CONFIG_DIRECTORY64).
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# The linker will define the __guard_* symbols.
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.section .rdata,"dr"
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.globl _load_config_used
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_load_config_used:
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.long 256
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.fill 124, 1, 0
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.quad __guard_fids_table
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.quad __guard_fids_count
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.long __guard_flags
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.fill 12, 1, 0
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.quad __guard_iat_table
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.quad __guard_iat_count
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.quad __guard_longjmp_table
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.quad __guard_fids_count
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.fill 84, 1, 0
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