Re: [igt-dev] [PATCH i-g-t 3/6] igt/core: Fix build warning

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On Fri, Nov 19, 2021 at 05:41:08PM +0200, Petri Latvala wrote:
> On Fri, Nov 19, 2021 at 03:34:54PM +0000, Tvrtko Ursulin wrote:
> > On 19/11/2021 13:53, Petri Latvala wrote:
> > > On Fri, Nov 19, 2021 at 12:59:42PM +0000, Tvrtko Ursulin wrote:
> > Okay I wasn't sufficiently focused while trying to fix this. No idea then
> > apart for playing with pragmas.


How's this:

diff --git a/lib/igt_core.c b/lib/igt_core.c
index ec05535c..6a4d0270 100644
--- a/lib/igt_core.c
+++ b/lib/igt_core.c
@@ -2727,6 +2727,8 @@ void igt_log(const char *domain, enum igt_log_level level, const char *format, .
 }
 
 static pthread_key_t __vlog_line_continuation;
+static const bool __dummy_true = true;
+static const bool __dummy_false = false;
 
 igt_constructor {
 	pthread_key_create(&__vlog_line_continuation, NULL);
@@ -2751,6 +2753,7 @@ void igt_vlog(const char *domain, enum igt_log_level level, const char *format,
 	FILE *file;
 	char *line, *formatted_line;
 	char *thread_id;
+	void *line_continuation;
 	const char *program_name;
 	const char *igt_log_level_str[] = {
 		"DEBUG",
@@ -2785,7 +2788,8 @@ void igt_vlog(const char *domain, enum igt_log_level level, const char *format,
 	if (vasprintf(&line, format, args) == -1)
 		return;
 
-	if (pthread_getspecific(__vlog_line_continuation)) {
+	line_continuation = pthread_getspecific(__vlog_line_continuation);
+	if (line_continuation != NULL && *(bool *)line_continuation) {
 		formatted_line = strdup(line);
 		if (!formatted_line)
 			goto out;
@@ -2796,9 +2800,9 @@ void igt_vlog(const char *domain, enum igt_log_level level, const char *format,
 	}
 
 	if (line[strlen(line) - 1] == '\n')
-		pthread_setspecific(__vlog_line_continuation, (void*) false);
+		pthread_setspecific(__vlog_line_continuation, &__dummy_false);
 	else
-		pthread_setspecific(__vlog_line_continuation, (void*) true);
+		pthread_setspecific(__vlog_line_continuation, &__dummy_true);
 
 	/* append log buffer */
 	_igt_log_buffer_append(formatted_line);
diff --git a/lib/igt_thread.c b/lib/igt_thread.c
index 5bdda410..0d7bce80 100644
--- a/lib/igt_thread.c
+++ b/lib/igt_thread.c
@@ -29,6 +29,7 @@
 #include "igt_thread.h"
 
 static pthread_key_t __igt_is_main_thread;
+static const bool __dummy_true = true;
 
 static _Atomic(bool) __thread_failed = false;
 
@@ -65,5 +66,5 @@ bool igt_thread_is_main(void)
 
 igt_constructor {
 	pthread_key_create(&__igt_is_main_thread, NULL);
-	pthread_setspecific(__igt_is_main_thread, (void*) 0x1);
+	pthread_setspecific(__igt_is_main_thread, &__dummy_true);
 }



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