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84486 discussions

[PATCH] include: Fix the signature of _InterlockedCompareExchange128
by Martin Storsjo 20 Dec '20

20 Dec '20

Clang 12 doesn't consider a function with an inconsistent signature as matching the intrinsic. This fixes InterlockedCompareExchange128 with clang 12 in MSVC mode. Signed-off-by: Martin Storsjo <martin(a)martin.st> --- include/winnt.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/winnt.h b/include/winnt.h index 01402d211fe..6d76e5e49e5 100644 --- a/include/winnt.h +++ b/include/winnt.h @@ -6923,7 +6923,7 @@ static inline BOOLEAN BitScanReverse(DWORD *index, DWORD mask) #if defined(_MSC_VER) #define InterlockedCompareExchange128 _InterlockedCompareExchange128 -static inline unsigned char _InterlockedCompareExchange128(__int64 *dest, __int64 xchg_high, __int64 xchg_low, __int64 *compare); +unsigned char _InterlockedCompareExchange128(volatile __int64 *dest, __int64 xchg_high, __int64 xchg_low, __int64 *compare); #pragma intrinsic(_InterlockedCompareExchange128) #elif defined(__x86_64__) -- 2.17.1

2 1

[PATCH] asm: Use SEH assembly when building with clang in MSVC mode
by Martin Storsjo 20 Dec '20

20 Dec '20

In MSVC mode, the __SEH__ macro isn't defined, but the .seh directives are supported in assembly. In these cases, we have to hardcode which architectures we know clang supports SEH directives in as it's not exposed otherwise. Signed-off-by: Martin Storsjo <martin(a)martin.st> --- This is admittedly rather ugly, but fixes a few unwinding cases with a wine in PE mode, built with clang in MSVC mode. --- include/wine/asm.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/wine/asm.h b/include/wine/asm.h index ed44a7dd6dd..236b35cf8fe 100644 --- a/include/wine/asm.h +++ b/include/wine/asm.h @@ -41,7 +41,7 @@ # define __ASM_CFI(str) #endif -#ifdef __SEH__ +#if defined(__SEH__) || (defined(_MSC_VER) && defined(__clang__) && (defined(__x86_64__) || defined(__aarch64__))) # if defined(__aarch64__) && defined(__clang_major__) && (__clang_major__ < 12 || defined(__apple_build_version__)) /* Clang got support for aarch64 SEH assembly directives in Clang 12, * before that, only .seh_startproc/.seh_endproc but nothing else was -- 2.17.1

2 1

[PATCH] asm: Separate .def/.scl/.type/.endef with newlines instead of semicolons
by Martin Storsjo 20 Dec '20

20 Dec '20

When targeting arm64 in MSVC mode, LLVM treats semicolons in assembly as comment char, instead of as statement separator (contrary to in mingw mode, where semicolons still work as separator). In generated code, there's no need to keep these directives on one single line though, so just separate them with newlines. Signed-off-by: Martin Storsjo <martin(a)martin.st> --- (There's no reference for how msvc should interpret gas-style assembly, so one could also think LLVM should change and treat semicolons as statement separator there, like for other architectures. But when I suggested fixing that a couple years ago, it was suggested to only change it for GNU style targets, see [1]. I guess the matter could be brought up again though.) [1] https://reviews.llvm.org/D36366#833185 --- include/wine/asm.h | 2 +- tools/winebuild/utils.c | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/include/wine/asm.h b/include/wine/asm.h index b5e6c6efd3d..ed44a7dd6dd 100644 --- a/include/wine/asm.h +++ b/include/wine/asm.h @@ -56,7 +56,7 @@ #endif #ifdef _WIN32 -# define __ASM_FUNC_TYPE(name) ".def " name "; .scl 2; .type 32; .endef" +# define __ASM_FUNC_TYPE(name) ".def " name "\n\t.scl 2\n\t.type 32\n\t.endef" #elif defined(__APPLE__) # define __ASM_FUNC_TYPE(name) "" #elif defined(__arm__) || defined(__arm64__) diff --git a/tools/winebuild/utils.c b/tools/winebuild/utils.c index 1af42f10005..5cffc74accd 100644 --- a/tools/winebuild/utils.c +++ b/tools/winebuild/utils.c @@ -686,7 +686,7 @@ void output_standard_file_header(void) output( "/* This file can be copied, modified and distributed without restriction. */\n\n" ); if (safe_seh) { - output( "\t.def @feat.00; .scl 3; .type 0; .endef\n" ); + output( "\t.def @feat.00\n\t.scl 3\n\t.type 0\n\t.endef\n" ); output( "\t.globl @feat.00\n" ); output( ".set @feat.00, 1\n" ); } @@ -1119,7 +1119,7 @@ const char *func_declaration( const char *func ) return ""; case PLATFORM_WINDOWS: free( buffer ); - buffer = strmake( ".def %s; .scl 2; .type 32; .endef", asm_name(func) ); + buffer = strmake( ".def %s\n\t.scl 2\n\t.type 32\n\t.endef", asm_name(func) ); break; default: free( buffer ); -- 2.17.1

2 1

[PATCH] include: Don't use the MSVC intrinsic _InterlockedCompareExchange128 on clang in MSVC mode
by Martin Storsjo 19 Dec '20

19 Dec '20

Clang doesn't consider the currently declared function as the proper intrinsic function (a few parameters differ vaguely), and even if declared properly, clang requires building for a target with the cx16 flag enabled to be able to use that intrinsic. Instead just use the inline assembly or GCC builtin version instead. This fixes building in PE mode with Clang in MSVC mode for both x86_64 and aarch64. Signed-off-by: Martin Storsjo <martin(a)martin.st> --- include/winnt.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/winnt.h b/include/winnt.h index 04353d9405d..9d797a85099 100644 --- a/include/winnt.h +++ b/include/winnt.h @@ -6894,7 +6894,7 @@ static inline BOOLEAN BitScanReverse(DWORD *index, DWORD mask) #ifdef _WIN64 -#if defined(_MSC_VER) +#if defined(_MSC_VER) && !defined(__clang__) #define InterlockedCompareExchange128 _InterlockedCompareExchange128 static inline unsigned char _InterlockedCompareExchange128(__int64 *dest, __int64 xchg_high, __int64 xchg_low, __int64 *compare); @@ -6913,7 +6913,7 @@ static inline unsigned char InterlockedCompareExchange128(__int64 *dest, __int64 return ret; } -#elif defined(__GNUC__) +#elif defined(__GNUC__) || defined(__clang__) static inline unsigned char InterlockedCompareExchange128(__int64 *dest, __int64 xchg_high, __int64 xchg_low, __int64 *compare) { -- 2.17.1

2 2

[PATCH] kernel32/tests: Don't test functions directly when reporting GetLastError()
by André Hentschel 19 Dec '20

19 Dec '20

Signed-off-by: André Hentschel <nerv(a)dawncrow.de> --- dlls/kernel32/tests/debugger.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/dlls/kernel32/tests/debugger.c b/dlls/kernel32/tests/debugger.c index 0a43fe91e64..962b308b6dc 100644 --- a/dlls/kernel32/tests/debugger.c +++ b/dlls/kernel32/tests/debugger.c @@ -1332,8 +1332,8 @@ static void test_debugger(const char *argv0) status = NtSuspendThread(thread, NULL); ok(!status, "NtSuspendThread failed, last error:%u\n", GetLastError()); - ok(ContinueDebugEvent(ctx.ev.dwProcessId, ctx.ev.dwThreadId, DBG_REPLY_LATER), - "ContinueDebugEvent failed, last error:%u\n", GetLastError()); + ret = ContinueDebugEvent(ctx.ev.dwProcessId, ctx.ev.dwThreadId, DBG_REPLY_LATER); + ok(ret, "ContinueDebugEvent failed, last error:%u\n", GetLastError()); ok(!WaitForDebugEvent(&ctx.ev, POLL_EVENT_TIMEOUT), "WaitForDebugEvent succeeded.\n"); status = NtResumeThread(thread, NULL); @@ -1350,8 +1350,8 @@ static void test_debugger(const char *argv0) ok(ctx.ev.dwDebugEventCode == LOAD_DLL_DEBUG_EVENT, "dwDebugEventCode = %d\n", ctx.ev.dwDebugEventCode); de = ctx.ev; - ok(ContinueDebugEvent(ctx.ev.dwProcessId, ctx.ev.dwThreadId, DBG_REPLY_LATER), - "ContinueDebugEvent failed, last error:%u\n", GetLastError()); + ret = ContinueDebugEvent(ctx.ev.dwProcessId, ctx.ev.dwThreadId, DBG_REPLY_LATER); + ok(ret, "ContinueDebugEvent failed, last error:%u\n", GetLastError()); ctx.ev.dwDebugEventCode = -1; next_event(&ctx, WAIT_EVENT_TIMEOUT); @@ -1462,8 +1462,8 @@ static void test_debugger(const char *argv0) status = NtSuspendThread(thread_b, NULL); ok(!status, "NtSuspendThread failed, last error:%u\n", GetLastError()); - ok(ContinueDebugEvent(ctx.ev.dwProcessId, ctx.ev.dwThreadId, DBG_REPLY_LATER), - "ContinueDebugEvent failed, last error:%u\n", GetLastError()); + ret = ContinueDebugEvent(ctx.ev.dwProcessId, ctx.ev.dwThreadId, DBG_REPLY_LATER); + ok(ret, "ContinueDebugEvent failed, last error:%u\n", GetLastError()); ctx.ev.dwDebugEventCode = -1; next_event(&ctx, WAIT_EVENT_TIMEOUT); @@ -1485,8 +1485,8 @@ static void test_debugger(const char *argv0) { status = pNtSuspendProcess(pi.hProcess); ok(!status, "NtSuspendProcess failed, last error:%u\n", GetLastError()); - ok(ContinueDebugEvent(ctx.ev.dwProcessId, ctx.ev.dwThreadId, DBG_REPLY_LATER), - "ContinueDebugEvent failed, last error:%u\n", GetLastError()); + ret = ContinueDebugEvent(ctx.ev.dwProcessId, ctx.ev.dwThreadId, DBG_REPLY_LATER); + ok(ret, "ContinueDebugEvent failed, last error:%u\n", GetLastError()); ok(!WaitForDebugEvent(&ctx.ev, POLL_EVENT_TIMEOUT), "WaitForDebugEvent succeeded.\n"); status = NtResumeThread(thread_b, NULL); -- 2.25.1

2 1

[PATCH] opengl32/tests: Don't test function directly when reporting GetLastError()
by André Hentschel 19 Dec '20

19 Dec '20

Signed-off-by: André Hentschel <nerv(a)dawncrow.de> --- dlls/opengl32/tests/opengl.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/dlls/opengl32/tests/opengl.c b/dlls/opengl32/tests/opengl.c index db5ad0ad765..90f06492e81 100644 --- a/dlls/opengl32/tests/opengl.c +++ b/dlls/opengl32/tests/opengl.c @@ -235,9 +235,10 @@ static int test_pfd(const PIXELFORMATDESCRIPTOR *pfd, PIXELFORMATDESCRIPTOR *fmt pf = ChoosePixelFormat( hdc, pfd ); if (pf && fmt) { + INT ret; memset(fmt, 0, sizeof(*fmt)); - ok(DescribePixelFormat( hdc, pf, sizeof(*fmt), fmt ), - "DescribePixelFormat failed with error: %u\n", GetLastError()); + ret = DescribePixelFormat( hdc, pf, sizeof(*fmt), fmt ); + ok(ret, "DescribePixelFormat failed with error: %u\n", GetLastError()); } ReleaseDC( hwnd, hdc ); DestroyWindow( hwnd ); -- 2.25.1

1 0

Wine staging 6.0-rc3 release
by Alistair Leslie-Hughes 19 Dec '20

19 Dec '20

Binary packages for various distributions will be available from: https://www.winehq.org/download Summary since last release * Rebased to current wine 6.0-rc3 (773 patches are applied to wine vanilla) Upstreamed (Either directly from staging or fixed with a similar patch). * winmm: Pass a fullpath to CreateFileA Added: * [39346] - Support IDirect3D3 when creating device. * [50150] - odbccp32: Implement SQLWriteDSNToIni/W * [50293] - native dxdiag complains about missing dlls. * [50026] - ntdll: Add stub for RtlQueryProcessPlaceholderCompatibilityMode Updated: * Staging * ntdll-NtQueryVirtualMemory * bcrypt-ECDHSecretAgreement * ntdll-Syscall_Emulation * mfplat-streaming-support * widl-winrt-support Where can you help * Run Steam/Battle.net/GOG/UPlay/Epic * Test your favorite game. * Test your favorite applications. * Improve staging patches and get them accepted upstream. As always, if you find a bug, please report it via https://bugs.winehq.org Best Regards Alistair.

1 0

[PATCH] ntdll, ntoskrnl: Implement a no-op __chkstk for arm64
by Martin Storsjo 18 Dec '20

18 Dec '20

Signed-off-by: Martin Storsjo <martin(a)martin.st> --- dlls/kernel32/kernel32.spec | 2 +- dlls/kernelbase/kernelbase.spec | 2 +- dlls/ntdll/ntdll.spec | 2 +- dlls/ntdll/signal_arm64.c | 7 +++++++ dlls/ntoskrnl.exe/ntoskrnl.c | 7 +++++++ dlls/ntoskrnl.exe/ntoskrnl.exe.spec | 2 +- 6 files changed, 18 insertions(+), 4 deletions(-) diff --git a/dlls/kernel32/kernel32.spec b/dlls/kernel32/kernel32.spec index 949b262a592..ee2e3f8ad31 100644 --- a/dlls/kernel32/kernel32.spec +++ b/dlls/kernel32/kernel32.spec @@ -1647,7 +1647,7 @@ @ stdcall WriteTapemark(ptr long long long) @ stdcall -import ZombifyActCtx(ptr) @ stdcall -arch=x86_64 -private __C_specific_handler(ptr long ptr ptr) ntdll.__C_specific_handler -@ cdecl -arch=arm,x86_64 -norelay __chkstk() ntdll.__chkstk +@ cdecl -arch=arm,arm64,x86_64 -norelay __chkstk() ntdll.__chkstk @ stub _DebugOut @ stub _DebugPrintf @ stdcall _hread(long ptr long) diff --git a/dlls/kernelbase/kernelbase.spec b/dlls/kernelbase/kernelbase.spec index 36d0492857f..b02737f045b 100644 --- a/dlls/kernelbase/kernelbase.spec +++ b/dlls/kernelbase/kernelbase.spec @@ -1742,7 +1742,7 @@ # @ stub _GetMUIStringFromCache # @ stub _OpenMuiStringCache @ stdcall -arch=x86_64 -private __C_specific_handler(ptr long ptr ptr) ntdll.__C_specific_handler -@ cdecl -arch=arm,x86_64 -norelay __chkstk() ntdll.__chkstk +@ cdecl -arch=arm,arm64,x86_64 -norelay __chkstk() ntdll.__chkstk # @ stub __dllonexit3 @ stub __misaligned_access # @ stub __wgetmainargs diff --git a/dlls/ntdll/ntdll.spec b/dlls/ntdll/ntdll.spec index b9acb120844..f3ec8fd9e39 100644 --- a/dlls/ntdll/ntdll.spec +++ b/dlls/ntdll/ntdll.spec @@ -1445,7 +1445,7 @@ @ cdecl -private -arch=i386 _CIsin() @ cdecl -private -arch=i386 _CIsqrt() @ stdcall -arch=x86_64,arm64 __C_specific_handler(ptr long ptr ptr) -@ cdecl -arch=arm,x86_64 -norelay __chkstk() +@ cdecl -arch=arm,arm64,x86_64 -norelay __chkstk() @ cdecl __isascii(long) @ cdecl __iscsym(long) @ cdecl __iscsymf(long) diff --git a/dlls/ntdll/signal_arm64.c b/dlls/ntdll/signal_arm64.c index c31eb510382..6ca49481c77 100644 --- a/dlls/ntdll/signal_arm64.c +++ b/dlls/ntdll/signal_arm64.c @@ -100,6 +100,13 @@ static inline BOOL is_valid_frame( ULONG_PTR frame ) } +/************************************************************************** + * __chkstk (NTDLL.@) + * + * Supposed to touch all the stack pages, but we shouldn't need that. + */ +__ASM_GLOBAL_FUNC( __chkstk, "ret") + /*********************************************************************** * RtlCaptureContext (NTDLL.@) */ diff --git a/dlls/ntoskrnl.exe/ntoskrnl.c b/dlls/ntoskrnl.exe/ntoskrnl.c index 4092e33db43..23ca0c1c51d 100644 --- a/dlls/ntoskrnl.exe/ntoskrnl.c +++ b/dlls/ntoskrnl.exe/ntoskrnl.c @@ -3858,6 +3858,13 @@ __ASM_GLOBAL_FUNC( _chkstk, */ __ASM_GLOBAL_FUNC( __chkstk, "lsl r4, r4, #2\n\t" "bx lr" ) +#elif defined(__aarch64__) +/************************************************************************** + * __chkstk (NTOSKRNL.@) + * + * Supposed to touch all the stack pages, but we shouldn't need that. + */ +__ASM_GLOBAL_FUNC( __chkstk, "ret" ); #endif /********************************************************************* diff --git a/dlls/ntoskrnl.exe/ntoskrnl.exe.spec b/dlls/ntoskrnl.exe/ntoskrnl.exe.spec index 6ac70c718f1..d57a2f81df6 100644 --- a/dlls/ntoskrnl.exe/ntoskrnl.exe.spec +++ b/dlls/ntoskrnl.exe/ntoskrnl.exe.spec @@ -1522,7 +1522,7 @@ @ stdcall ZwWriteFile(long long ptr ptr ptr ptr long ptr ptr) NtWriteFile @ stdcall -private ZwYieldExecution() NtYieldExecution @ stdcall -arch=x86_64 __C_specific_handler(ptr long ptr ptr) -@ cdecl -arch=arm,x86_64 -norelay __chkstk() +@ cdecl -arch=arm,arm64,x86_64 -norelay __chkstk() @ cdecl -private -arch=i386 _CIcos() @ cdecl -private -arch=i386 _CIsin() @ cdecl -private -arch=i386 _CIsqrt() -- 2.17.1

1 0

[PATCH] ntdll: Always copy context in call_user_apc_dispatcher() on x86.
by Paul Gofman 18 Dec '20

18 Dec '20

Signed-off-by: Paul Gofman <pgofman(a)codeweavers.com> --- dlls/ntdll/tests/exception.c | 48 ++++++++++++++++++++ dlls/ntdll/unix/signal_i386.c | 84 ++++++++++++++++++++++------------- 2 files changed, 101 insertions(+), 31 deletions(-) diff --git a/dlls/ntdll/tests/exception.c b/dlls/ntdll/tests/exception.c index 48785f229e9..3aa8b7a4eb9 100644 --- a/dlls/ntdll/tests/exception.c +++ b/dlls/ntdll/tests/exception.c @@ -2003,6 +2003,53 @@ static void test_kiuserexceptiondispatcher(void) ok(ret, "Got unexpected ret %#x, GetLastError() %u.\n", ret, GetLastError()); } +static BOOL test_apc_called; + +static void CALLBACK test_apc(ULONG_PTR arg1, ULONG_PTR arg2, ULONG_PTR arg3) +{ + test_apc_called = TRUE; +} + +static void test_user_apc(void) +{ + NTSTATUS status; + CONTEXT context; + int pass; + + if (!pNtQueueApcThread) + { + win_skip("NtQueueApcThread is not available.\n"); + return; + } + + pass = 0; + InterlockedIncrement(&pass); + RtlCaptureContext(&context); + InterlockedIncrement(&pass); + + if (pass == 2) + { + /* Try to make sure context data is far enough below context.Esp. */ + CONTEXT c[4]; + + c[0] = context; + + test_apc_called = FALSE; + status = pNtQueueApcThread(GetCurrentThread(), test_apc, 0, 0, 0); + ok(!status, "Got unexpected status %#x.\n", status); + SleepEx(0, TRUE); + ok(test_apc_called, "Test user APC was not called.\n"); + test_apc_called = FALSE; + status = pNtQueueApcThread(GetCurrentThread(), test_apc, 0, 0, 0); + ok(!status, "Got unexpected status %#x.\n", status); + status = NtContinue(&c[0], TRUE ); + + /* Broken before Win7, in that case NtContinue returns here instead of restoring context after calling APC. */ + ok(0, "Should not get here, status %#x.\n", status); + } + ok(pass == 3, "Got unexpected pass %d.\n", pass); + ok(test_apc_called, "Test user APC was not called.\n"); +} #elif defined(__x86_64__) #define UNW_FLAG_NHANDLER 0 @@ -8291,6 +8338,7 @@ START_TEST(exception) test_kiuserexceptiondispatcher(); test_extended_context(); test_copy_context(); + test_user_apc(); #elif defined(__x86_64__) diff --git a/dlls/ntdll/unix/signal_i386.c b/dlls/ntdll/unix/signal_i386.c index f1fd2cd2e41..ff9d8a12c14 100644 --- a/dlls/ntdll/unix/signal_i386.c +++ b/dlls/ntdll/unix/signal_i386.c @@ -1675,6 +1675,42 @@ static void setup_exception( ucontext_t *sigcontext, EXCEPTION_RECORD *rec ) setup_raise_exception( sigcontext, stack, rec, &xcontext ); } +/* stack layout when calling an user apc function. + * FIXME: match Windows ABI. */ +struct apc_stack_layout +{ + void *context_ptr; + void *ctx; + void *arg1; + void *arg2; + void *func; + CONTEXT context; +}; + +struct apc_stack_layout * WINAPI setup_user_apc_dispatcher_stack( CONTEXT *context, struct apc_stack_layout *stack, + void *ctx, void *arg1, void *arg2, void *func ) +{ + CONTEXT c; + + if (!context) + { + c.ContextFlags = CONTEXT_FULL; + NtGetContextThread( GetCurrentThread(), &c ); + context = &c; + } + memmove( &stack->context, context, sizeof(stack->context) ); + stack->context_ptr = &stack->context; + stack->ctx = ctx; + stack->arg1 = arg1; + stack->arg2 = arg2; + stack->func = func; + stack->context.Eax = STATUS_USER_APC; + return stack; +} + +C_ASSERT( sizeof(struct apc_stack_layout) == 0x2e0 ); +C_ASSERT( offsetof(struct syscall_frame, ret_addr) == 0x14 ); +C_ASSERT( offsetof(struct apc_stack_layout, context) == 20 ); /*********************************************************************** * call_user_apc_dispatcher @@ -1682,41 +1718,27 @@ static void setup_exception( ucontext_t *sigcontext, EXCEPTION_RECORD *rec ) __ASM_GLOBAL_FUNC( call_user_apc_dispatcher, "movl 4(%esp),%esi\n\t" /* context_ptr */ "movl 24(%esp),%edi\n\t" /* dispatcher */ + "leal 4(%esp),%ebp\n\t" "test %esi,%esi\n\t" "jz 1f\n\t" - "movl 0xc4(%esi),%eax\n\t" /* context_ptr->Rsp */ - "leal -0x2f8(%eax),%eax\n\t" /* sizeof(CONTEXT) + offsetof(frame,ret_addr) + params */ - "movl 20(%esp),%ecx\n\t" /* func */ - "movl %ecx,20(%eax)\n\t" - "movl 8(%esp),%ebx\n\t" /* ctx */ - "movl 12(%esp),%edx\n\t" /* arg1 */ - "movl 16(%esp),%ecx\n\t" /* arg2 */ - "leal 4(%eax),%esp\n\t" - "jmp 2f\n" + "movl 0xc4(%esi),%eax\n\t" /* context_ptr->Esp */ + "jmp 2f\n\t" "1:\tmovl %fs:0x1f8,%eax\n\t" /* x86_thread_data()->syscall_frame */ - "leal -0x2cc(%eax),%esi\n\t" - "movl %esp,%ebx\n\t" - "cmpl %esp,%esi\n\t" - "cmovbl %esi,%esp\n\t" - "pushl 20(%ebx)\n\t" /* func */ - "pushl 16(%ebx)\n\t" /* arg2 */ - "pushl 12(%ebx)\n\t" /* arg1 */ - "movl 8(%ebx),%ebx\n\t" /* ctx */ - "movl $0x00010007,(%esi)\n\t" /* context.ContextFlags = CONTEXT_FULL */ - "pushl %esi\n\t" /* context */ - "pushl $0xfffffffe\n\t" - "call " __ASM_STDCALL("NtGetContextThread",8) "\n\t" - "movl $0xc0,0xb0(%esi)\n" /* context.Eax = STATUS_USER_APC */ - "popl %edx\n\t" - "popl %ecx\n\t" - "popl %eax\n\t" - "leal -20(%esi),%esp\n\t" - "movl %eax,16(%esp)\n" /* func */ - "2:\tmovl %ecx,12(%esp)\n\t" /* arg2 */ - "movl %edx,8(%esp)\n\t" /* arg1 */ - "movl %ebx,4(%esp)\n\t" /* ctx */ - "movl %esi,(%esp)\n\t" /* context */ + "leal 0x14(%eax),%eax\n\t" /* &x86_thread_data()->syscall_frame->ret_addr */ + "2:\tsubl $0x2e0,%eax\n\t" /* sizeof(struct apc_stack_layout) */ + "movl %ebp,%esp\n\t" /* pop return address */ + "cmpl %esp,%eax\n\t" + "cmovbl %eax,%esp\n\t" + "pushl 16(%ebp)\n\t" /* func */ + "pushl 12(%ebp)\n\t" /* arg2 */ + "pushl 8(%ebp)\n\t" /* arg1 */ + "pushl 4(%ebp)\n\t" /* ctx */ + "pushl %eax\n\t" + "pushl %esi\n\t" + "call " __ASM_STDCALL("setup_user_apc_dispatcher_stack",24) "\n\t" "movl $0,%fs:0x1f8\n\t" /* x86_thread_data()->syscall_frame = NULL */ + "movl %eax,%esp\n\t" + "leal 20(%eax),%esi\n\t" "movl 0xb4(%esi),%ebp\n\t" /* context.Ebp */ "pushl 0xb8(%esi)\n\t" /* context.Eip */ "jmp *%edi\n" ) -- 2.29.2

2 1

[PATCH] ieframe: Fix memory leak in PersistFile_Save.
by Haidong Yu 18 Dec '20

18 Dec '20

2 1

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