From 2fcf051fae760f4d9b4745ec20296e3f3bf8526a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?R=C3=A9mi=20Bernon?= Date: Sat, 4 Apr 2020 11:30:15 +0200 Subject: [PATCH] winedbg: Clean handle_exception return values. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit It was returning a mix of TRUE/FALSE and in some cases DBG_CONTINUE. Let's return TRUE if the exception has been handled and should be ignored, or FALSE if not and if we should notify gdb. Signed-off-by: Rémi Bernon Signed-off-by: Alexandre Julliard --- programs/winedbg/gdbproxy.c | 39 +++++++++++++------------------------ 1 file changed, 14 insertions(+), 25 deletions(-) diff --git a/programs/winedbg/gdbproxy.c b/programs/winedbg/gdbproxy.c index 81fc6489851..5b7fdaa83eb 100644 --- a/programs/winedbg/gdbproxy.c +++ b/programs/winedbg/gdbproxy.c @@ -312,8 +312,7 @@ static void dbg_thread_set_single_step(struct dbg_thread *thread, BOOL enable) static BOOL handle_exception(struct gdb_context* gdbctx, EXCEPTION_DEBUG_INFO* exc) { - EXCEPTION_RECORD* rec = &exc->ExceptionRecord; - BOOL ret = FALSE; + EXCEPTION_RECORD* rec = &exc->ExceptionRecord; switch (rec->ExceptionCode) { @@ -322,18 +321,15 @@ static BOOL handle_exception(struct gdb_context* gdbctx, EXCEPTION_DEBUG_INFO* e case EXCEPTION_STACK_OVERFLOW: case EXCEPTION_GUARD_PAGE: gdbctx->last_sig = SIGSEGV; - ret = TRUE; - break; + return FALSE; case EXCEPTION_DATATYPE_MISALIGNMENT: gdbctx->last_sig = SIGBUS; - ret = TRUE; - break; + return FALSE; case EXCEPTION_SINGLE_STEP: /* fall through */ case EXCEPTION_BREAKPOINT: gdbctx->last_sig = SIGTRAP; - ret = TRUE; - break; + return FALSE; case EXCEPTION_FLT_DENORMAL_OPERAND: case EXCEPTION_FLT_DIVIDE_BY_ZERO: case EXCEPTION_FLT_INEXACT_RESULT: @@ -342,26 +338,21 @@ static BOOL handle_exception(struct gdb_context* gdbctx, EXCEPTION_DEBUG_INFO* e case EXCEPTION_FLT_STACK_CHECK: case EXCEPTION_FLT_UNDERFLOW: gdbctx->last_sig = SIGFPE; - ret = TRUE; - break; + return FALSE; case EXCEPTION_INT_DIVIDE_BY_ZERO: case EXCEPTION_INT_OVERFLOW: gdbctx->last_sig = SIGFPE; - ret = TRUE; - break; + return FALSE; case EXCEPTION_ILLEGAL_INSTRUCTION: gdbctx->last_sig = SIGILL; - ret = TRUE; - break; + return FALSE; case CONTROL_C_EXIT: gdbctx->last_sig = SIGINT; - ret = TRUE; - break; + return FALSE; case STATUS_POSSIBLE_DEADLOCK: - gdbctx->last_sig = SIGALRM; - ret = TRUE; /* FIXME: we could also add here a O packet with additional information */ - break; + gdbctx->last_sig = SIGALRM; + return FALSE; case EXCEPTION_NAME_THREAD: { const THREADNAME_INFO *threadname = (const THREADNAME_INFO *)rec->ExceptionInformation; @@ -384,17 +375,15 @@ static BOOL handle_exception(struct gdb_context* gdbctx, EXCEPTION_DEBUG_INFO* e } else ERR("Cannot set name of thread %04x\n", threadname->dwThreadID); - return DBG_CONTINUE; + return TRUE; } case EXCEPTION_INVALID_HANDLE: - return DBG_CONTINUE; + return TRUE; default: fprintf(stderr, "Unhandled exception code 0x%08x\n", rec->ExceptionCode); gdbctx->last_sig = SIGABRT; - ret = TRUE; - break; + return FALSE; } - return ret; } static void handle_debug_event(struct gdb_context* gdbctx) @@ -469,7 +458,7 @@ static void handle_debug_event(struct gdb_context* gdbctx) TRACE("%08x:%08x: exception code=0x%08x\n", de->dwProcessId, de->dwThreadId, de->u.Exception.ExceptionRecord.ExceptionCode); - gdbctx->in_trap = handle_exception(gdbctx, &de->u.Exception); + gdbctx->in_trap = !handle_exception(gdbctx, &de->u.Exception); break; case CREATE_THREAD_DEBUG_EVENT: