Alexandre Julliard : winecrt0: Add a fallback implementation of __wine_dbg_get_channel_flags().
Alexandre Julliard
julliard at winehq.org
Wed Apr 3 15:26:18 CDT 2019
Module: wine
Branch: master
Commit: b0ecbe0baed6910fae291f0ae506dd90506e5315
URL: https://source.winehq.org/git/wine.git/?a=commit;h=b0ecbe0baed6910fae291f0ae506dd90506e5315
Author: Alexandre Julliard <julliard at winehq.org>
Date: Wed Apr 3 19:25:39 2019 +0200
winecrt0: Add a fallback implementation of __wine_dbg_get_channel_flags().
Signed-off-by: Alexandre Julliard <julliard at winehq.org>
---
dlls/winecrt0/debug.c | 133 ++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 133 insertions(+)
diff --git a/dlls/winecrt0/debug.c b/dlls/winecrt0/debug.c
index 4ae086c..8003e03 100644
--- a/dlls/winecrt0/debug.c
+++ b/dlls/winecrt0/debug.c
@@ -27,9 +27,18 @@
#include "windef.h"
#include "winbase.h"
#include "wine/debug.h"
+#include "wine/heap.h"
static const char * (__cdecl *p__wine_dbg_strdup)( const char *str );
static int (__cdecl *p__wine_dbg_output)( const char *str );
+static unsigned char (__cdecl *p__wine_dbg_get_channel_flags)( struct __wine_debug_channel *channel );
+
+static const char * const debug_classes[] = { "fixme", "err", "warn", "trace" };
+
+static unsigned char default_flags = (1 << __WINE_DBCL_ERR) | (1 << __WINE_DBCL_FIXME);
+static int nb_debug_options = -1;
+static int options_size;
+static struct __wine_debug_channel *debug_options;
static void load_func( void **func, const char *name, void *def )
{
@@ -42,6 +51,103 @@ static void load_func( void **func, const char *name, void *def )
}
#define LOAD_FUNC(name) load_func( (void **)&p ## name, #name, fallback ## name )
+
+/* add a new debug option at the end of the option list */
+static void add_option( const char *name, unsigned char set, unsigned char clear )
+{
+ int min = 0, max = nb_debug_options - 1, pos, res;
+
+ if (!name[0]) /* "all" option */
+ {
+ default_flags = (default_flags & ~clear) | set;
+ return;
+ }
+ if (strlen(name) >= sizeof(debug_options[0].name)) return;
+
+ while (min <= max)
+ {
+ pos = (min + max) / 2;
+ res = strcmp( name, debug_options[pos].name );
+ if (!res)
+ {
+ debug_options[pos].flags = (debug_options[pos].flags & ~clear) | set;
+ return;
+ }
+ if (res < 0) max = pos - 1;
+ else min = pos + 1;
+ }
+ if (nb_debug_options >= options_size)
+ {
+ options_size = max( options_size * 2, 16 );
+ debug_options = heap_realloc( debug_options, options_size * sizeof(debug_options[0]) );
+ }
+
+ pos = min;
+ if (pos < nb_debug_options) memmove( &debug_options[pos + 1], &debug_options[pos],
+ (nb_debug_options - pos) * sizeof(debug_options[0]) );
+ strcpy( debug_options[pos].name, name );
+ debug_options[pos].flags = (default_flags & ~clear) | set;
+ nb_debug_options++;
+}
+
+/* parse a set of debugging option specifications and add them to the option list */
+static void parse_options( const char *str )
+{
+ char *opt, *next, *options;
+ unsigned int i;
+
+ if (!(options = _strdup(str))) return;
+ for (opt = options; opt; opt = next)
+ {
+ const char *p;
+ unsigned char set = 0, clear = 0;
+
+ if ((next = strchr( opt, ',' ))) *next++ = 0;
+
+ p = opt + strcspn( opt, "+-" );
+ if (!p[0]) p = opt; /* assume it's a debug channel name */
+
+ if (p > opt)
+ {
+ for (i = 0; i < ARRAY_SIZE(debug_classes); i++)
+ {
+ int len = strlen(debug_classes[i]);
+ if (len != (p - opt)) continue;
+ if (!memcmp( opt, debug_classes[i], len )) /* found it */
+ {
+ if (*p == '+') set |= 1 << i;
+ else clear |= 1 << i;
+ break;
+ }
+ }
+ if (i == ARRAY_SIZE(debug_classes)) /* bad class name, skip it */
+ continue;
+ }
+ else
+ {
+ if (*p == '-') clear = ~0;
+ else set = ~0;
+ }
+ if (*p == '+' || *p == '-') p++;
+ if (!p[0]) continue;
+
+ if (!strcmp( p, "all" ))
+ default_flags = (default_flags & ~clear) | set;
+ else
+ add_option( p, set, clear );
+ }
+ free( options );
+}
+
+/* initialize all options at startup */
+static void init_options(void)
+{
+ char *wine_debug = getenv("WINEDEBUG");
+
+ nb_debug_options = 0;
+ if (wine_debug) parse_options( wine_debug );
+}
+
/* FIXME: this is not 100% thread-safe */
static const char * __cdecl fallback__wine_dbg_strdup( const char *str )
{
@@ -60,6 +166,27 @@ static int __cdecl fallback__wine_dbg_output( const char *str )
return fwrite( str, 1, strlen(str), stderr );
}
+static unsigned char __cdecl fallback__wine_dbg_get_channel_flags( struct __wine_debug_channel *channel )
+{
+ int min, max, pos, res;
+
+ if (nb_debug_options == -1) init_options();
+
+ min = 0;
+ max = nb_debug_options - 1;
+ while (min <= max)
+ {
+ pos = (min + max) / 2;
+ res = strcmp( channel->name, debug_options[pos].name );
+ if (!res) return debug_options[pos].flags;
+ if (res < 0) max = pos - 1;
+ else min = pos + 1;
+ }
+ /* no option for this channel */
+ if (channel->flags & (1 << __WINE_DBCL_INIT)) channel->flags = default_flags;
+ return default_flags;
+}
+
const char * __cdecl __wine_dbg_strdup( const char *str )
{
LOAD_FUNC( __wine_dbg_strdup );
@@ -72,4 +199,10 @@ int __cdecl __wine_dbg_output( const char *str )
return p__wine_dbg_output( str );
}
+unsigned char __cdecl __wine_dbg_get_channel_flags( struct __wine_debug_channel *channel )
+{
+ LOAD_FUNC( __wine_dbg_get_channel_flags );
+ return p__wine_dbg_get_channel_flags( channel );
+}
+
#endif /* _WIN32 */
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