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-rw-r--r--extra/gcc-uClibc/gcc-uClibc.c113
1 files changed, 88 insertions, 25 deletions
diff --git a/extra/gcc-uClibc/gcc-uClibc.c b/extra/gcc-uClibc/gcc-uClibc.c
index 152272512..d417dabee 100644
--- a/extra/gcc-uClibc/gcc-uClibc.c
+++ b/extra/gcc-uClibc/gcc-uClibc.c
@@ -72,36 +72,12 @@
#include <stdio.h>
#include <stdlib.h>
+#include <stdarg.h>
#include <string.h>
#include <unistd.h>
#include "gcc-uClibc.h"
-static char *rpath_link[] = {
- "-Wl,-rpath-link,"UCLIBC_DEVEL_PREFIX"/lib",
- "-Wl,-rpath-link,"UCLIBC_BUILD_DIR"/lib"
-};
-
-static char *rpath[] = {
- "-Wl,-rpath,"UCLIBC_DEVEL_PREFIX"/lib",
- "-Wl,-rpath,"UCLIBC_BUILD_DIR"/lib"
-};
-
-static char *uClibc_inc[] = {
- "-I"UCLIBC_DEVEL_PREFIX"/include/",
- "-I"UCLIBC_BUILD_DIR"/include/"
-};
-
-static char *crt0_path[] = {
- UCLIBC_DEVEL_PREFIX"/lib/crt0.o",
- UCLIBC_BUILD_DIR"/lib/crt0.o"
-};
-
-static char *lib_path[] = {
- "-L"UCLIBC_DEVEL_PREFIX"/lib",
- "-L"UCLIBC_BUILD_DIR"/lib"
-};
-
static char *usr_lib_path = "-L"UCLIBC_DEVEL_PREFIX"/lib";
static char static_linking[] = "-static";
@@ -110,6 +86,51 @@ static char nostartfiles[] = "-nostartfiles";
static char nodefaultlibs[] = "-nodefaultlibs";
static char nostdlib[] = "-nostdlib";
+
+extern void *xmalloc(size_t size)
+{
+ void *ptr = malloc(size);
+
+ if (!ptr) {
+ fprintf(stderr, "memory exhausted");
+ exit(EXIT_FAILURE);
+ }
+ return ptr;
+}
+
+void xstrcat(char **string, ...)
+{
+ const char *c;
+ va_list p;
+#if 0
+ int len = 0;
+
+ /* Calculate how big exerything will be */
+ va_start(p, string);
+ while(1) {
+ if (!(c = va_arg(p, const char *)))
+ break;
+ len+=strlen(c);
+ }
+ va_end(p);
+ va_start(p, string);
+ *string = xmalloc(len * sizeof(const char) + 2);
+#else
+ /* This is faster. */
+ /* Don't bother to calculate how big exerything
+ * will be, just be careful to not overflow... */
+ va_start(p, string);
+ *string = xmalloc(BUFSIZ);
+#endif
+ **string = '\0';
+ while(1) {
+ if (!(c = va_arg(p, const char *)))
+ break;
+ strcat(*string, c);
+ }
+ va_end(p);
+}
+
int main(int argc, char **argv)
{
int use_build_dir = 0, linking = 1, use_static_linking = 0;
@@ -118,8 +139,45 @@ int main(int argc, char **argv)
int i, j;
char ** gcc_argv;
char *dlstr;
+ char *incstr;
+ char *devprefix;
+ char *builddir;
+ char *libstr;
char *build_dlstr;
char *ep;
+ char *rpath_link[2];
+ char *rpath[2];
+ char *uClibc_inc[2];
+ char *crt0_path[2];
+ char *lib_path[2];
+
+ devprefix = getenv("UCLIBC_DEVEL_PREFIX");
+ if (!devprefix) {
+ devprefix = UCLIBC_DEVEL_PREFIX;
+ }
+
+ builddir = getenv("UCLIBC_BUILD_DIR");
+ if (!builddir) {
+ builddir = UCLIBC_BUILD_DIR;
+ }
+
+ incstr = getenv("UCLIBC_GCC_INC");
+ libstr = getenv("UCLIBC_GCC_LIB");
+
+ xstrcat(&(rpath_link[0]), "-Wl,-rpath-link,", devprefix, "/lib", NULL);
+ xstrcat(&(rpath_link[1]), "-Wl,-rpath-link,", builddir, "/lib", NULL);
+
+ xstrcat(&(rpath[0]), "-Wl,-rpath,", devprefix, "/lib", NULL);
+ xstrcat(&(rpath[1]), "-Wl,-rpath,", builddir, "/lib", NULL);
+
+ xstrcat(&(uClibc_inc[0]), "-I", devprefix, "/include/", NULL);
+ xstrcat(&(uClibc_inc[1]), "-I", builddir, "/include/", NULL);
+
+ xstrcat(&(crt0_path[0]), devprefix, "/lib/crt0.o", NULL);
+ xstrcat(&(crt0_path[1]), builddir, "/lib/crt0.o", NULL);
+
+ xstrcat(&(lib_path[0]), "-L", devprefix, "/lib", NULL);
+ xstrcat(&(lib_path[1]), "-L", builddir, "/lib", NULL);
build_dlstr = "-Wl,--dynamic-linker," BUILD_DYNAMIC_LINKER;
dlstr = getenv("UCLIBC_GCC_DLOPT");
@@ -218,6 +276,8 @@ int main(int argc, char **argv)
gcc_argv[i++] = nostdinc;
gcc_argv[i++] = uClibc_inc[use_build_dir];
gcc_argv[i++] = GCC_INCDIR;
+ if( incstr )
+ gcc_argv[i++] = incstr;
}
if (linking && source_count) {
@@ -232,6 +292,8 @@ int main(int argc, char **argv)
}
}
gcc_argv[i++] = rpath_link[use_build_dir]; /* just to be safe */
+ if( libstr )
+ gcc_argv[i++] = libstr;
gcc_argv[i++] = lib_path[use_build_dir];
if (!use_build_dir) {
gcc_argv[i++] = usr_lib_path;
@@ -254,5 +316,6 @@ int main(int argc, char **argv)
}
}
+ //no need to free memory from xstrcat because we never return...
return execvp(GCC_BIN, gcc_argv);
}