fixdep is a standalone host program, so we can just re-sync it with the latest Linux in one commit.
I kept the U-Boot own code block surrounded by /* hack for U-Boot */ ... /* U-boot hack end */.
Signed-off-by: Masahiro Yamada masahiroy@kernel.org ---
scripts/basic/fixdep.c | 92 +++++++++++++++++++++--------------------- 1 file changed, 47 insertions(+), 45 deletions(-)
diff --git a/scripts/basic/fixdep.c b/scripts/basic/fixdep.c index 555dada47a..24be244d5e 100644 --- a/scripts/basic/fixdep.c +++ b/scripts/basic/fixdep.c @@ -77,11 +77,6 @@ * dependencies on include/config/my/option.h for every * CONFIG_MY_OPTION encountered in any of the prerequisites. * - * It will also filter out all the dependencies on *.ver. We need - * to make sure that the generated version checksum are globally up - * to date before even starting the recursive build, so it's too late - * at this point anyway. - * * We don't even try to really parse the header files, but * merely grep, i.e. if CONFIG_FOO is mentioned in a comment, it will * be picked up as well. It's not a problem with respect to @@ -99,6 +94,7 @@ #include <unistd.h> #include <fcntl.h> #include <string.h> +#include <stdarg.h> #include <stdlib.h> #include <stdio.h> #include <ctype.h> @@ -107,11 +103,40 @@ char tmp_buf[256]; /* hack for U-Boot */
static void usage(void) { - fprintf(stderr, "Usage: fixdep [-e] <depfile> <target> <cmdline>\n"); - fprintf(stderr, " -e insert extra dependencies given on stdin\n"); + fprintf(stderr, "Usage: fixdep <depfile> <target> <cmdline>\n"); exit(1); }
+/* + * In the intended usage of this program, the stdout is redirected to .*.cmd + * files. The return value of printf() and putchar() must be checked to catch + * any error, e.g. "No space left on device". + */ +static void xprintf(const char *format, ...) +{ + va_list ap; + int ret; + + va_start(ap, format); + ret = vprintf(format, ap); + if (ret < 0) { + perror("fixdep"); + exit(1); + } + va_end(ap); +} + +static void xputchar(int c) +{ + int ret; + + ret = putchar(c); + if (ret == EOF) { + perror("fixdep"); + exit(1); + } +} + /* * Print out a dependency path from a symbol name */ @@ -119,7 +144,7 @@ static void print_dep(const char *m, int slen, const char *dir) { int c, prev_c = '/', i;
- printf(" $(wildcard %s/", dir); + xprintf(" $(wildcard %s/", dir); for (i = 0; i < slen; i++) { c = m[i]; if (c == '_') @@ -127,25 +152,10 @@ static void print_dep(const char *m, int slen, const char *dir) else c = tolower(c); if (c != '/' || prev_c != '/') - putchar(c); + xputchar(c); prev_c = c; } - printf(".h) \\n"); -} - -static void do_extra_deps(void) -{ - char buf[80]; - - while (fgets(buf, sizeof(buf), stdin)) { - int len = strlen(buf); - - if (len < 2 || buf[len - 1] != '\n') { - fprintf(stderr, "fixdep: bad data on stdin\n"); - exit(1); - } - print_dep(buf, len - 1, "include/ksym"); - } + xprintf(".h) \\n"); }
struct item { @@ -238,7 +248,7 @@ static void parse_config_file(const char *p) } p += 7; q = p; - while (*q && (isalnum(*q) || *q == '_')) + while (isalnum(*q) || *q == '_') q++; if (str_ends_with(p, q - p, "_MODULE")) r = q - 7; @@ -309,8 +319,7 @@ static void *read_file(const char *filename) static int is_ignored_file(const char *s, int len) { return str_ends_with(s, len, "include/generated/autoconf.h") || - str_ends_with(s, len, "include/generated/autoksyms.h") || - str_ends_with(s, len, ".ver"); + str_ends_with(s, len, "include/generated/autoksyms.h"); }
/* @@ -318,7 +327,7 @@ static int is_ignored_file(const char *s, int len) * assignments are parsed not only by make, but also by the rather simple * parser in scripts/mod/sumversion.c. */ -static void parse_dep_file(char *m, const char *target, int insert_extra_deps) +static void parse_dep_file(char *m, const char *target) { char *p; int is_last, is_target; @@ -365,13 +374,13 @@ static void parse_dep_file(char *m, const char *target, int insert_extra_deps) */ if (!saw_any_target) { saw_any_target = 1; - printf("source_%s := %s\n\n", - target, m); - printf("deps_%s := \\n", target); + xprintf("source_%s := %s\n\n", + target, m); + xprintf("deps_%s := \\n", target); } is_first_dep = 0; } else { - printf(" %s \\n", m); + xprintf(" %s \\n", m); }
buf = read_file(m); @@ -394,23 +403,16 @@ static void parse_dep_file(char *m, const char *target, int insert_extra_deps) exit(1); }
- if (insert_extra_deps) - do_extra_deps(); - - printf("\n%s: $(deps_%s)\n\n", target, target); - printf("$(deps_%s):\n", target); + xprintf("\n%s: $(deps_%s)\n\n", target, target); + xprintf("$(deps_%s):\n", target); }
int main(int argc, char *argv[]) { const char *depfile, *target, *cmdline; - int insert_extra_deps = 0; void *buf;
- if (argc == 5 && !strcmp(argv[1], "-e")) { - insert_extra_deps = 1; - argv++; - } else if (argc != 4) + if (argc != 4) usage();
depfile = argv[1]; @@ -424,10 +426,10 @@ int main(int argc, char *argv[]) strcpy(tmp_buf, "TPL_"); /* end U-Boot hack */
- printf("cmd_%s := %s\n\n", target, cmdline); + xprintf("cmd_%s := %s\n\n", target, cmdline);
buf = read_file(depfile); - parse_dep_file(buf, target, insert_extra_deps); + parse_dep_file(buf, target); free(buf);
return 0;