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Diffstat (limited to 'scripts/kconfig/preprocess.c')
-rw-r--r--scripts/kconfig/preprocess.c41
1 files changed, 41 insertions, 0 deletions
diff --git a/scripts/kconfig/preprocess.c b/scripts/kconfig/preprocess.c
index f32a496626da..528be594e1d0 100644
--- a/scripts/kconfig/preprocess.c
+++ b/scripts/kconfig/preprocess.c
@@ -106,8 +106,49 @@ struct function {
char *(*func)(int argc, char *argv[]);
};
+static char *do_shell(int argc, char *argv[])
+{
+ FILE *p;
+ char buf[256];
+ char *cmd;
+ size_t nread;
+ int i;
+
+ cmd = argv[0];
+
+ p = popen(cmd, "r");
+ if (!p) {
+ perror(cmd);
+ exit(1);
+ }
+
+ nread = fread(buf, 1, sizeof(buf), p);
+ if (nread == sizeof(buf))
+ nread--;
+
+ /* remove trailing new lines */
+ while (buf[nread - 1] == '\n')
+ nread--;
+
+ buf[nread] = 0;
+
+ /* replace a new line with a space */
+ for (i = 0; i < nread; i++) {
+ if (buf[i] == '\n')
+ buf[i] = ' ';
+ }
+
+ if (pclose(p) == -1) {
+ perror(cmd);
+ exit(1);
+ }
+
+ return xstrdup(buf);
+}
+
static const struct function function_table[] = {
/* Name MIN MAX Function */
+ { "shell", 1, 1, do_shell },
};
#define FUNCTION_MAX_ARGS 16