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-rw-r--r--common/log.c26
-rw-r--r--include/common/log.h5
2 files changed, 29 insertions, 2 deletions
diff --git a/common/log.c b/common/log.c
index af07334a..1a4a28a8 100644
--- a/common/log.c
+++ b/common/log.c
@@ -58,3 +58,29 @@ void _wlr_log(log_importance_t verbosity, const char *fmt, ...) {
log_callback(verbosity, fmt, args);
va_end(args);
}
+
+// strips the path prefix from filepath
+// will try to strip WLR_SRC_DIR as well as a relative src dir
+// e.g. '/src/build/wlroots/backend/wayland/backend.c' and
+// '../backend/wayland/backend.c' will both be stripped to
+// 'backend/wayland/backend.c'
+const char *_strip_path(const char *filepath) {
+ const char *srcit = WLR_SRC_DIR;
+ const char *fileit = filepath;
+
+ // remove WLR_SRC_DIR prefix
+ while(*fileit != '\0' && *srcit != '\0' && *fileit == *srcit) {
+ ++fileit;
+ ++srcit;
+ }
+ if(fileit != filepath) {
+ ++fileit;
+ }
+
+ // remove relative prefix
+ while(*fileit == '.' || *fileit == '/') {
+ ++fileit;
+ }
+
+ return fileit;
+}
diff --git a/include/common/log.h b/include/common/log.h
index 3fca0dcf..98e57900 100644
--- a/include/common/log.h
+++ b/include/common/log.h
@@ -13,12 +13,13 @@
void _wlr_log(log_importance_t verbosity, const char *format, ...) ATTRIB_PRINTF(2, 3);
void _wlr_vlog(log_importance_t verbosity, const char *format, va_list args) ATTRIB_PRINTF(2, 0);
+const char *_strip_path(const char *filepath);
#define wlr_log(verb, fmt, ...) \
- _wlr_log(verb, "[%s:%d] " fmt, __FILE__ + strlen(WLR_SRC_DIR) + 1, __LINE__, ##__VA_ARGS__)
+ _wlr_log(verb, "[%s:%d] " fmt, _strip_path(__FILE__), __LINE__, ##__VA_ARGS__)
#define wlr_vlog(verb, fmt, args) \
- _wlr_vlog(verb, "[%s:%d] " fmt, __FILE__ + strlen(WLR_SRC_DIR) + 1, __LINE__, args)
+ _wlr_vlog(verb, "[%s:%d] " fmt, _strip_path(__FILE__), __LINE__, args)
#define wlr_log_errno(verb, fmt, ...) \
wlr_log(verb, fmt ": %s", ##__VA_ARGS__, strerror(errno))