Module: wine Branch: master Commit: 10d7a804c1973f332b9068cb8c98119c6dd7c1e2 URL: https://source.winehq.org/git/wine.git/?a=commit;h=10d7a804c1973f332b9068cb8... Author: Zebediah Figura <z.figura12(a)gmail.com> Date: Sun Mar 28 17:08:30 2021 -0500 ntdll/tests: Add a test for segment register contents in x86_64 exception handlers. Signed-off-by: Zebediah Figura <z.figura12(a)gmail.com> Signed-off-by: Alexandre Julliard <julliard(a)winehq.org> --- dlls/ntdll/tests/exception.c | 40 +++++++++++++++++++++++++++++++++++++++- 1 file changed, 39 insertions(+), 1 deletion(-) diff --git a/dlls/ntdll/tests/exception.c b/dlls/ntdll/tests/exception.c index da88ca449fb..7c75606dd32 100644 --- a/dlls/ntdll/tests/exception.c +++ b/dlls/ntdll/tests/exception.c @@ -2812,7 +2812,7 @@ static void test___C_specific_handler(void) /* This is heavily based on the i386 exception tests. */ static const struct exception { - BYTE code[18]; /* asm code */ + BYTE code[40]; /* asm code */ BYTE offset; /* offset of faulting instruction */ BYTE length; /* length of faulting instruction */ NTSTATUS status; /* expected status code */ @@ -2921,6 +2921,34 @@ static const struct exception /* 35 */ { { 0xa3, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc3 }, /* movl %eax,0xffffffffffffffff; ret */ 0, 9, STATUS_ACCESS_VIOLATION, 2, { 1, 0xffffffffffffffff } }, + + /* test exception with cleared segment registers */ + { { + 0x8c, 0xc0, /* mov %es,%eax */ + 0x50, /* push %rax */ + 0x8c, 0xd8, /* mov %ds,%eax */ + 0x50, /* push %rax */ + 0x8c, 0xe0, /* mov %fs,%eax */ + 0x50, /* push %rax */ + 0x8c, 0xe8, /* mov %gs,%eax */ + 0x50, /* push %rax */ + 0x31, 0xc0, /* xor %eax,%eax */ + 0x8e, 0xc0, /* mov %eax,%es */ + 0x8e, 0xd8, /* mov %eax,%ds */ + 0x8e, 0xe0, /* mov %eax,%fs */ + 0x8e, 0xe8, /* mov %eax,%gs */ + 0xfa, /* cli */ + 0x58, /* pop %rax */ + 0x8e, 0xe8, /* mov %eax,%gs */ + 0x58, /* pop %rax */ + 0x8e, 0xe0, /* mov %eax,%fs */ + 0x58, /* pop %rax */ + 0x8e, 0xd8, /* mov %eax,%ds */ + 0x58, /* pop %rax */ + 0x8e, 0xc0, /* mov %eax,%es */ + 0xc3, /* retq */ + }, 22, 1, STATUS_PRIVILEGED_INSTRUCTION, 0 }, + { { 0xf1, 0x90, 0xc3 }, /* icebp; nop; ret */ 1, 1, STATUS_SINGLE_STEP, 0 }, { { 0xcd, 0x2c, 0xc3 }, @@ -2992,6 +3020,16 @@ static DWORD WINAPI handler( EXCEPTION_RECORD *rec, ULONG64 frame, "%u: Unexpected exception address %p/%p\n", entry, rec->ExceptionAddress, (char*)context->Rip ); + todo_wine ok( context->SegDs == context->SegSs, + "%u: ds %#x does not match ss %#x\n", entry, context->SegDs, context->SegSs ); + todo_wine ok( context->SegEs == context->SegSs, + "%u: es %#x does not match ss %#x\n", entry, context->SegEs, context->SegSs ); + todo_wine ok( context->SegGs == context->SegSs, + "%u: ds %#x does not match ss %#x\n", entry, context->SegGs, context->SegSs ); + + todo_wine ok( context->SegFs && context->SegFs != context->SegSs, + "%u: got fs %#x\n", entry, context->SegFs ); + if (except->status == STATUS_BREAKPOINT && is_wow64) parameter_count = 1; else if (except->alt_status == 0 || rec->ExceptionCode != except->alt_status)