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ntdll: Block signals in send_debug_event. 

Signed-off-by: Jacek Caban <jacek@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Jacek Caban 2020-04-15 14:55:39 +02:00 committed by Alexandre Julliard
parent dbe7694c53
commit 137fd7d3a0
1 changed files with 19 additions and 12 deletions
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31
dlls/ntdll/exception.c
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@ -133,9 +133,12 @@ NTSTATUS send_debug_event( EXCEPTION_RECORD *rec, int first_chance, CONTEXT *con
client_ptr_t params[EXCEPTION_MAXIMUM_PARAMETERS];
context_t server_context;
select_op_t select_op;
sigset_t old_set;
if (!NtCurrentTeb()->Peb->BeingDebugged) return 0; /* no debugger present */
pthread_sigmask( SIG_BLOCK, &server_block_set, &old_set );
for (i = 0; i < min( rec->NumberParameters, EXCEPTION_MAXIMUM_PARAMETERS ); i++)
params[i] = rec->ExceptionInformation[i];
@ -151,23 +154,27 @@ NTSTATUS send_debug_event( EXCEPTION_RECORD *rec, int first_chance, CONTEXT *con
req->len = i * sizeof(params[0]);
wine_server_add_data( req, params, req->len );
wine_server_add_data( req, &server_context, sizeof(server_context) );
if (!wine_server_call( req )) handle = reply->handle;
if (!(ret = wine_server_call( req ))) handle = reply->handle;
}
SERVER_END_REQ;
if (!handle) return 0;
select_op.wait.op = SELECT_WAIT;
select_op.wait.handles[0] = handle;
server_select( &select_op, offsetof( select_op_t, wait.handles[1] ), SELECT_INTERRUPTIBLE, TIMEOUT_INFINITE, NULL, NULL );
SERVER_START_REQ( get_exception_status )
if (handle)
{
req->handle = handle;
wine_server_set_reply( req, &server_context, sizeof(server_context) );
ret = wine_server_call( req );
select_op.wait.op = SELECT_WAIT;
select_op.wait.handles[0] = handle;
server_select( &select_op, offsetof( select_op_t, wait.handles[1] ), SELECT_INTERRUPTIBLE, TIMEOUT_INFINITE, NULL, NULL );
SERVER_START_REQ( get_exception_status )
{
req->handle = handle;
wine_server_set_reply( req, &server_context, sizeof(server_context) );
ret = wine_server_call( req );
}
SERVER_END_REQ;
if (ret >= 0) context_from_server( context, &server_context );
}
SERVER_END_REQ;
if (ret >= 0) context_from_server( context, &server_context );
pthread_sigmask( SIG_SETMASK, &old_set, NULL );
return ret;
}