diff options
| author | Rob Landley <rob@landley.net> | 2007-10-09 01:25:18 -0500 |
|---|---|---|
| committer | Sam Ravnborg <sam@neptun.(none)> | 2007-10-18 13:42:53 +0200 |
| commit | bb13be5145e18cfb3a2f9cc6091aa048d032a3cd (patch) | |
| tree | 641277a42d90f1a99506a71b646371b1bc2935c4 | |
| parent | 4b21960f90d4d011e49e386d0525b1e89f320658 (diff) | |
kbuild: stop docproc segfaulting when SRCTREE isn't set.
Prevent docproc from segfaulting when SRCTREE isn't set.
Signed-off-by: Rob Landley <rob@landley.net>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
| -rw-r--r-- | scripts/basic/docproc.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/scripts/basic/docproc.c b/scripts/basic/docproc.c index e5c6ac7bde9..0e4bd5459df 100644 --- a/scripts/basic/docproc.c +++ b/scripts/basic/docproc.c @@ -66,12 +66,15 @@ FILELINE * entity_system; #define FUNCTION "-function" #define NOFUNCTION "-nofunction" +char *srctree; + void usage (void) { fprintf(stderr, "Usage: docproc {doc|depend} file\n"); fprintf(stderr, "Input is read from file.tmpl. Output is sent to stdout\n"); fprintf(stderr, "doc: frontend when generating kernel documentation\n"); fprintf(stderr, "depend: generate list of files referenced within file\n"); + fprintf(stderr, "Environment variable SRCTREE: absolute path to kernel source tree.\n"); } /* @@ -90,7 +93,7 @@ void exec_kernel_doc(char **svec) exit(1); case 0: memset(real_filename, 0, sizeof(real_filename)); - strncat(real_filename, getenv("SRCTREE"), PATH_MAX); + strncat(real_filename, srctree, PATH_MAX); strncat(real_filename, KERNELDOCPATH KERNELDOC, PATH_MAX - strlen(real_filename)); execvp(real_filename, svec); @@ -171,7 +174,7 @@ void find_export_symbols(char * filename) if (filename_exist(filename) == NULL) { char real_filename[PATH_MAX + 1]; memset(real_filename, 0, sizeof(real_filename)); - strncat(real_filename, getenv("SRCTREE"), PATH_MAX); + strncat(real_filename, srctree, PATH_MAX); strncat(real_filename, filename, PATH_MAX - strlen(real_filename)); sym = add_new_file(filename); @@ -338,6 +341,10 @@ void parse_file(FILE *infile) int main(int argc, char *argv[]) { FILE * infile; + + srctree = getenv("SRCTREE"); + if (!srctree) + srctree = getcwd(NULL, 0); if (argc != 3) { usage(); exit(1); |