1 files changed, 75 insertions, 0 deletions
diff --git a/toolchain/toolchain-external/ext-toolchain-wrapper.c b/toolchain/toolchain-external/ext-toolchain-wrapper.c
new file mode 100644
index 000000000..a485e740d
--- /dev/null
+++ b/toolchain/toolchain-external/ext-toolchain-wrapper.c
@@ -0,0 +1,75 @@
+/**
+ * Buildroot wrapper for external toolchains. This simply executes the real
+ * toolchain with a number of arguments (sysroot/arch/..) hardcoded,
+ * to ensure the external toolchain uses the correct configuration.
+ *
+ * (C) 2011 Peter Korsgaard <jacmet@sunsite.dk>
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2.  This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <limits.h>
+#include <unistd.h>
+
+#define MAXARGS 1000
+
+static char path[PATH_MAX] = BR_CROSS_PATH;
+
+static char *args[MAXARGS] = {
+	path,
+	"--sysroot", BR_SYSROOT,
+#ifdef BR_ARCH
+	"-march=" BR_ARCH,
+#endif /* BR_ARCH */
+#ifdef BR_TUNE
+	"-mtune=" BR_TUNE,
+#endif /* BR_TUNE */
+#ifdef BR_ABI
+	"-mabi=" BR_ABI,
+#endif
+#ifdef BR_SOFTFLOAT
+	"-msoft-float",
+#endif /* BR_SOFTFLOAT */
+#ifdef BR_VFPFLOAT
+	"-mfpu=vfp",
+#endif /* BR_VFPFLOAT */
+};
+
+static const char *get_basename(const char *name)
+{
+	const char *base;
+
+	base = strrchr(name, '/');
+	if (base)
+		base++;
+	else
+		base = name;
+
+	return base;
+}
+
+int main(int argc, char **argv)
+{
+	int i;
+
+	for (i=0; args[i]; i++);
+
+	if ((argc+i) >= MAXARGS) {
+		fputs("Too many arguments\n", stderr);
+		return 1;
+	}
+
+	/* forward args */
+	memcpy(&args[i], &argv[1], sizeof(argv[0]) * (argc - 1));
+
+	strcat(path, get_basename(argv[0]));
+
+	if (execv(path, args))
+		perror(path);
+
+	return 2;
+}