kbuild: Improve output and error behavior when making modversions.

Reduce the amount of output in verbose (default) mode and stop
immediately on error.

(Sam Ravnborg/me)

1 files changed, 5 insertions, 3 deletions

diff --git a/scripts/fixdep.c b/scripts/fixdep.c
index db45bd1888c0..1e9ffda8473b 100644
--- a/scripts/fixdep.c
+++ b/scripts/fixdep.c
@@ -143,7 +143,7 @@ void grow_config(int len)
 			size_config = 2048;
 		str_config = realloc(str_config, size_config *= 2);
 		if (str_config == NULL)
-			{ perror("malloc"); exit(1); }
+			{ perror("fixdep:malloc"); exit(1); }
 	}
 }
 
@@ -259,6 +259,7 @@ void do_config_file(char *filename)
 
 	fd = open(filename, O_RDONLY);
 	if (fd < 0) {
+		fprintf(stderr, "fixdep: ");
 		perror(filename);
 		exit(2);
 	}
@@ -269,7 +270,7 @@ void do_config_file(char *filename)
 	}
 	map = mmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
 	if ((long) map == -1) {
-		perror("mmap");
+		perror("fixdep: mmap");
 		close(fd);
 		return;
 	}
@@ -326,6 +327,7 @@ void print_deps(void)
 
 	fd = open(depfile, O_RDONLY);
 	if (fd < 0) {
+		fprintf(stderr, "fixdep: ");
 		perror(depfile);
 		exit(2);
 	}
@@ -337,7 +339,7 @@ void print_deps(void)
 	}
 	map = mmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
 	if ((long) map == -1) {
-		perror("mmap");
+		perror("fixdep: mmap");
 		close(fd);
 		return;
 	}