Alexandre Julliard : ntdll: Pass a server context to server_select().
Module: wine Branch: master Commit: 8eda3fcc68f281c05518ec1b17522aaf6fcf7d11 URL: https://source.winehq.org/git/wine.git/?a=commit;h=8eda3fcc68f281c05518ec1b1... Author: Alexandre Julliard <julliard(a)winehq.org> Date: Tue May 18 16:20:08 2021 +0200 ntdll: Pass a server context to server_select(). Signed-off-by: Alexandre Julliard <julliard(a)winehq.org> --- dlls/ntdll/unix/server.c | 27 ++++----------------------- dlls/ntdll/unix/thread.c | 29 ++++++++++------------------- dlls/ntdll/unix/unix_private.h | 4 +--- 3 files changed, 15 insertions(+), 45 deletions(-) diff --git a/dlls/ntdll/unix/server.c b/dlls/ntdll/unix/server.c index d77a476f7a6..d153fdce0be 100644 --- a/dlls/ntdll/unix/server.c +++ b/dlls/ntdll/unix/server.c @@ -620,24 +620,18 @@ static void invoke_system_apc( const apc_call_t *call, apc_result_t *result, BOO * server_select */ unsigned int server_select( const select_op_t *select_op, data_size_t size, UINT flags, - timeout_t abs_timeout, CONTEXT *context, pthread_mutex_t *mutex, + timeout_t abs_timeout, context_t *context, pthread_mutex_t *mutex, user_apc_t *user_apc ) { unsigned int ret; int cookie; obj_handle_t apc_handle = 0; - context_t server_context; - BOOL suspend_context = FALSE; + BOOL suspend_context = !!context; apc_call_t call; apc_result_t result; sigset_t old_set; memset( &result, 0, sizeof(result) ); - if (context) - { - suspend_context = TRUE; - context_to_server( &server_context, context, current_machine ); - } do { @@ -655,26 +649,13 @@ unsigned int server_select( const select_op_t *select_op, data_size_t size, UINT wine_server_add_data( req, select_op, size ); if (suspend_context) { - wine_server_add_data( req, &server_context, sizeof(server_context) ); + wine_server_add_data( req, context, sizeof(*context) ); suspend_context = FALSE; /* server owns the context now */ } - if (context) wine_server_set_reply( req, &server_context, sizeof(server_context) ); + if (context) wine_server_set_reply( req, context, sizeof(*context) ); ret = server_call_unlocked( req ); apc_handle = reply->apc_handle; call = reply->call; - if (wine_server_reply_size( reply )) - { - DWORD context_flags = context->ContextFlags; /* unchanged registers are still available */ - XSTATE *xs = xstate_from_context( context ); - ULONG64 mask; - - if (xs) - mask = xs->Mask; - context_from_server( context, &server_context, current_machine ); - context->ContextFlags |= context_flags; - if (xs) - xs->Mask |= mask; - } } SERVER_END_REQ; diff --git a/dlls/ntdll/unix/thread.c b/dlls/ntdll/unix/thread.c index 4d2aa47270d..639031059c6 100644 --- a/dlls/ntdll/unix/thread.c +++ b/dlls/ntdll/unix/thread.c @@ -139,7 +139,7 @@ static unsigned int get_server_context_flags( const void *context, USHORT machin * * Convert a register context to the server format. */ -NTSTATUS context_to_server( context_t *to, const void *src, USHORT machine ) +static NTSTATUS context_to_server( context_t *to, const void *src, USHORT machine ) { DWORD i, flags; @@ -388,7 +388,7 @@ NTSTATUS context_to_server( context_t *to, const void *src, USHORT machine ) * * Convert a register context from the server format. */ -NTSTATUS context_from_server( void *dst, const context_t *from, USHORT machine ) +static NTSTATUS context_from_server( void *dst, const context_t *from, USHORT machine ) { DWORD i; @@ -1052,9 +1052,12 @@ void exit_process( int status ) void wait_suspend( CONTEXT *context ) { int saved_errno = errno; + context_t server_context; + context_to_server( &server_context, context, current_machine ); /* wait with 0 timeout, will only return once the thread is no longer suspended */ - server_select( NULL, 0, SELECT_INTERRUPTIBLE, 0, context, NULL, NULL ); + server_select( NULL, 0, SELECT_INTERRUPTIBLE, 0, &server_context, NULL, NULL ); + context_from_server( context, &server_context, current_machine ); errno = saved_errno; } @@ -1095,22 +1098,15 @@ NTSTATUS send_debug_event( EXCEPTION_RECORD *rec, CONTEXT *context, BOOL first_c if (handle) { - struct xcontext exception_context; - DECLSPEC_ALIGN(64) XSTATE xs; - XSTATE *src_xs; + context_t server_context; select_op.wait.op = SELECT_WAIT; select_op.wait.handles[0] = handle; - exception_context.c = *context; - if ((src_xs = xstate_from_context( context ))) - { - context_init_xstate( &exception_context.c, &xs ); - memcpy( &xs, src_xs, sizeof(xs) ); - } + context_to_server( &server_context, context, current_machine ); server_select( &select_op, offsetof( select_op_t, wait.handles[1] ), SELECT_INTERRUPTIBLE, - TIMEOUT_INFINITE, &exception_context.c, NULL, NULL ); + TIMEOUT_INFINITE, &server_context, NULL, NULL ); SERVER_START_REQ( get_exception_status ) { @@ -1118,12 +1114,7 @@ NTSTATUS send_debug_event( EXCEPTION_RECORD *rec, CONTEXT *context, BOOL first_c ret = wine_server_call( req ); } SERVER_END_REQ; - if (ret >= 0) - { - *context = exception_context.c; - if (src_xs) - memcpy( src_xs, &xs, sizeof(xs) ); - } + if (ret >= 0) context_from_server( context, &server_context, current_machine ); } pthread_sigmask( SIG_SETMASK, &old_set, NULL ); diff --git a/dlls/ntdll/unix/unix_private.h b/dlls/ntdll/unix/unix_private.h index 3ec412959bc..41df2d431a3 100644 --- a/dlls/ntdll/unix/unix_private.h +++ b/dlls/ntdll/unix/unix_private.h @@ -159,7 +159,7 @@ extern unsigned int server_call_unlocked( void *req_ptr ) DECLSPEC_HIDDEN; extern void server_enter_uninterrupted_section( pthread_mutex_t *mutex, sigset_t *sigset ) DECLSPEC_HIDDEN; extern void server_leave_uninterrupted_section( pthread_mutex_t *mutex, sigset_t *sigset ) DECLSPEC_HIDDEN; extern unsigned int server_select( const select_op_t *select_op, data_size_t size, UINT flags, - timeout_t abs_timeout, CONTEXT *context, pthread_mutex_t *mutex, + timeout_t abs_timeout, context_t *context, pthread_mutex_t *mutex, user_apc_t *user_apc ) DECLSPEC_HIDDEN; extern unsigned int server_wait( const select_op_t *select_op, data_size_t size, UINT flags, const LARGE_INTEGER *timeout ) DECLSPEC_HIDDEN; @@ -177,8 +177,6 @@ extern int server_pipe( int fd[2] ) DECLSPEC_HIDDEN; extern void set_thread_id( TEB *teb, DWORD pid, DWORD tid ) DECLSPEC_HIDDEN; extern NTSTATUS init_thread_stack( TEB *teb, ULONG_PTR zero_bits, SIZE_T reserve_size, SIZE_T commit_size, SIZE_T *pthread_size ) DECLSPEC_HIDDEN; -extern NTSTATUS context_to_server( context_t *to, const void *src, USHORT machine ) DECLSPEC_HIDDEN; -extern NTSTATUS context_from_server( void *dst, const context_t *from, USHORT machine ) DECLSPEC_HIDDEN; extern void DECLSPEC_NORETURN abort_thread( int status ) DECLSPEC_HIDDEN; extern void DECLSPEC_NORETURN abort_process( int status ) DECLSPEC_HIDDEN; extern void DECLSPEC_NORETURN exit_process( int status ) DECLSPEC_HIDDEN;
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Alexandre Julliard