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-rw-r--r--extra/gcc-uClibc/gcc-uClibc.c77
1 files changed, 48 insertions, 29 deletions
diff --git a/extra/gcc-uClibc/gcc-uClibc.c b/extra/gcc-uClibc/gcc-uClibc.c
index c2971f3af..e6c57c6c9 100644
--- a/extra/gcc-uClibc/gcc-uClibc.c
+++ b/extra/gcc-uClibc/gcc-uClibc.c
@@ -1,7 +1,7 @@
/* vi: set sw=4 ts=4: */
/*
* Copyright (C) 2000 Manuel Novoa III
- * Copyright (C) 2002 Erik Andersen
+ * Copyright (C) 2002-2003 Erik Andersen
*
* This is a crude wrapper to use uClibc with gcc.
* It was originally written to work around ./configure for ext2fs-utils.
@@ -76,6 +76,7 @@
#include <stdarg.h>
#include <string.h>
#include <unistd.h>
+#include <errno.h>
#include <sys/stat.h>
#include <sys/wait.h>
@@ -203,17 +204,23 @@ int main(int argc, char **argv)
char *crtn_path[2];
int len;
int ctor_dtor = 1, cplusplus = 0, use_nostdinc_plus = 0;
- char *GPLUSPLUS_BIN = NULL;
+ int findlibgcc = 1;
+ char *cpp = NULL;
#endif
#ifdef __UCLIBC_PROFILING__
int profile = 0;
char *gcrt1_path[2];
#endif
+#ifdef __UCLIBC_CTOR_DTOR__
cc = getenv("UCLIBC_CC");
- if (!cc) {
+ if (cc==NULL) {
cc = GCC_BIN;
+ findlibgcc = 0;
}
+#else
+ cc = GCC_BIN;
+#endif
application_name = basename(argv[0]);
if (application_name[0] == '-')
@@ -230,9 +237,9 @@ int main(int argc, char **argv)
(strcmp(application_name+len-3, "c++")==0)) {
len = strlen(cc);
if (strcmp(cc+len-3, "gcc")==0) {
- GPLUSPLUS_BIN = strdup(cc);
- GPLUSPLUS_BIN[len-1]='+';
- GPLUSPLUS_BIN[len-2]='+';
+ cpp = strdup(cc);
+ cpp[len-1]='+';
+ cpp[len-2]='+';
}
cplusplus = 1;
use_nostdinc_plus = 1;
@@ -435,10 +442,11 @@ int main(int argc, char **argv)
#ifdef __UCLIBC_CTOR_DTOR__
if (ctor_dtor) {
struct stat statbuf;
- if (stat(LIBGCC_DIR, &statbuf)!=0 ||
+ if (findlibgcc==1 || stat(LIBGCC_DIR, &statbuf)!=0 ||
!S_ISDIR(statbuf.st_mode))
{
- /* Bummer, gcc has moved things on us... */
+ /* Bummer, gcc is hiding from us. This is going
+ * to really slow things down... bummer. */
int status, gcc_pipe[2];
pid_t pid, wpid;
@@ -450,35 +458,41 @@ int main(int argc, char **argv)
close(2);
dup2(gcc_pipe[1], 1);
dup2(gcc_pipe[1], 2);
- argv[0] = cc;
- argv[2] = "-print-libgcc-file-name";
- argv[3] = NULL;
- execvp(argv[0], argv);
+ argv[0] = cc;
+ argv[1] = "-print-libgcc-file-name";
+ argv[2] = NULL;
+ execvp(cc, argv);
close(gcc_pipe[1]);
- _exit(-1);
+ _exit(EXIT_FAILURE);
}
wpid=0;
while (wpid != pid) {
wpid = wait(&status);
}
close(gcc_pipe[1]);
- if (WIFEXITED(status)) {
+ if (WIFEXITED(status) && WEXITSTATUS(status)) {
+crash_n_burn:
+ fprintf(stderr, "Unable to locale crtbegin.o provided by gcc");
+ exit(EXIT_FAILURE);
+ }
+ if (WIFSIGNALED(status)) {
+ fprintf(stderr, "%s exited because of uncaught signal %d", cc, WTERMSIG(status));
+ exit(EXIT_FAILURE);
+ }
+
+ {
char buf[1024], *dir;
status = read(gcc_pipe[0], buf, sizeof(buf));
+ close(gcc_pipe[0]);
if (status < 0) {
goto crash_n_burn;
}
dir = dirname(buf);
- xstrcat(&(crtbegin_path[0]), dir, "crtbegin.o", NULL);
- xstrcat(&(crtbegin_path[1]), dir, "crtbeginS.o", NULL);
- xstrcat(&(crtend_path[0]), dir, "crtend.o", NULL);
- xstrcat(&(crtend_path[1]), dir, "crtendS.o", NULL);
- } else {
-crash_n_burn:
- fprintf(stderr, "Unable to locale crtbegin.o provided by gcc");
- exit(EXIT_FAILURE);
+ xstrcat(&(crtbegin_path[0]), dir, "/crtbegin.o", NULL);
+ xstrcat(&(crtbegin_path[1]), dir, "/crtbeginS.o", NULL);
+ xstrcat(&(crtend_path[0]), dir, "/crtend.o", NULL);
+ xstrcat(&(crtend_path[1]), dir, "/crtendS.o", NULL);
}
- close(gcc_pipe[0]);
} else {
xstrcat(&(crtbegin_path[0]), LIBGCC_DIR, "crtbegin.o", NULL);
@@ -488,8 +502,8 @@ crash_n_burn:
}
}
- if (cplusplus && GPLUSPLUS_BIN)
- gcc_argv[i++] = GPLUSPLUS_BIN;
+ if (cplusplus && cpp)
+ gcc_argv[i++] = cpp;
else
#endif
gcc_argv[i++] = cc;
@@ -628,9 +642,14 @@ crash_n_burn:
}
//no need to free memory from xstrcat because we never return...
#ifdef __UCLIBC_CTOR_DTOR__
- if (cplusplus && GPLUSPLUS_BIN)
- return execvp(GPLUSPLUS_BIN, gcc_argv);
- else
+ if (cplusplus && cpp) {
+ execvp(cpp, gcc_argv);
+ fprintf(stderr, "%s: %s\n", cpp, strerror(errno));
+ } else
#endif
- return execvp(cc, gcc_argv);
+ {
+ execvp(cc, gcc_argv);
+ fprintf(stderr, "%s: %s\n", cc, strerror(errno));
+ }
+ exit(EXIT_FAILURE);
}