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ntdll: Implement RtlGetCallersAddress.

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This commit is contained in:
Alexandre Julliard 2024-03-14 17:57:30 +01:00
parent 92d20c1120
commit 180bd1044b
4 changed files with 30 additions and 1 deletions
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14
dlls/ntdll/exception.c
View File

@ -531,6 +531,20 @@ USHORT WINAPI RtlCaptureStackBackTrace( ULONG skip, ULONG count, void **buffer,
}
/*************************************************************************
* RtlGetCallersAddress (NTDLL.@)
*/
void WINAPI RtlGetCallersAddress( void **caller, void **parent )
{
void *buffer[2];
ULONG count = ARRAY_SIZE(buffer), skip = 2; /* skip our frame and the parent */
count = RtlWalkFrameChain( buffer, count + skip, skip << 8 );
*caller = count > 0 ? buffer[0] : NULL;
*parent = count > 1 ? buffer[1] : NULL;
}
/**********************************************************************
* RtlGetEnabledExtendedFeatures (NTDLL.@)
*/

2
dlls/ntdll/ntdll.spec
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@ -716,7 +716,7 @@
@ stub RtlGenerate8dot3Name
@ stdcall RtlGetAce(ptr long ptr)
@ stdcall RtlGetActiveActivationContext(ptr)
@ stub RtlGetCallersAddress
@ stdcall RtlGetCallersAddress(ptr ptr)
@ stdcall RtlGetCompressionWorkSpaceSize(long ptr ptr)
@ stdcall RtlGetControlSecurityDescriptor(ptr ptr ptr)
@ stdcall RtlGetCurrentDirectory_U(long ptr)

14
dlls/ntdll/tests/exception.c
View File

@ -66,6 +66,7 @@ static void * (WINAPI *pRtlLocateLegacyContext)(CONTEXT_EX *context_ex, ULONG
static void (WINAPI *pRtlSetExtendedFeaturesMask)(CONTEXT_EX *context_ex, ULONG64 feature_mask);
static ULONG64 (WINAPI *pRtlGetExtendedFeaturesMask)(CONTEXT_EX *context_ex);
static void * (WINAPI *pRtlPcToFileHeader)(PVOID pc, PVOID *address);
static void (WINAPI *pRtlGetCallersAddress)(void**,void**);
static NTSTATUS (WINAPI *pNtRaiseException)(EXCEPTION_RECORD *rec, CONTEXT *context, BOOL first_chance);
static NTSTATUS (WINAPI *pNtReadVirtualMemory)(HANDLE, const void*, void*, SIZE_T, SIZE_T*);
static NTSTATUS (WINAPI *pNtTerminateProcess)(HANDLE handle, LONG exit_code);
@ -10784,6 +10785,18 @@ static void test_backtrace(void)
ok( module == GetModuleHandleA(0), "wrong module %p %s / %p for %p\n",
module, debugstr_w(name), GetModuleHandleA(0), buffer[0]);
if (pRtlGetCallersAddress)
{
void *caller, *parent;
caller = parent = (void *)0xdeadbeef;
pRtlGetCallersAddress( &caller, &parent );
ok( caller == (count > 1 ? buffer[1] : NULL) || broken(is_arm64ec), /* caller is entry thunk */
"wrong caller %p / %p\n", caller, buffer[1] );
ok( parent == (count > 2 ? buffer[2] : NULL), "wrong parent %p / %p\n", parent, buffer[2] );
}
else win_skip( "RtlGetCallersAddress not supported\n" );
if (count && !buffer[count - 1]) count--; /* win11 32-bit */
if (count <= 1) return;
RtlPcToFileHeader( buffer[count - 1], &module );
@ -10844,6 +10857,7 @@ START_TEST(exception)
X(RtlSetExtendedFeaturesMask);
X(RtlGetExtendedFeaturesMask);
X(RtlPcToFileHeader);
X(RtlGetCallersAddress);
X(RtlCopyContext);
X(RtlCopyExtendedContext);
X(KiUserApcDispatcher);

1
include/rtlsupportapi.h
View File

@ -24,6 +24,7 @@
NTSYSAPI void WINAPI RtlCaptureContext(CONTEXT*);
NTSYSAPI void WINAPI RtlCaptureContext2(CONTEXT*);
NTSYSAPI USHORT WINAPI RtlCaptureStackBackTrace(ULONG,ULONG,void**,ULONG*);
NTSYSAPI void WINAPI RtlGetCallersAddress(void**,void**);
NTSYSAPI void WINAPI RtlRaiseException(EXCEPTION_RECORD*);
NTSYSAPI void CDECL RtlRestoreContext(CONTEXT*,EXCEPTION_RECORD*);
NTSYSAPI void WINAPI RtlUnwind(void*,void*,EXCEPTION_RECORD*,void*);