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changeset 546:a7f128fc53b5

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Rename gcc-uClibc.c to ccwrap.c
author Rob Landley <rob@landley.net>
date Tue, 23 Dec 2008 01:18:22 -0600
parents f1337876df98
children 65b71915c836
files cross-compiler.sh mini-native.sh sources/toys/ccwrap.c sources/toys/gcc-uClibc.c
diffstat 4 files changed, 495 insertions(+), 495 deletions(-) [+]
line wrap: on
line diff
--- a/cross-compiler.sh	Wed Dec 17 19:24:08 2008 -0600
+++ b/cross-compiler.sh	Tue Dec 23 01:18:22 2008 -0600
@@ -64,7 +64,7 @@
 
 cd "${CROSS}"/bin &&
 mv "${ARCH}-gcc" "$ARCH-rawgcc" &&
-$CC $STATIC_FLAGS -Os -s "${SOURCES}"/toys/gcc-uClibc.c -o "${ARCH}-gcc" \
+$CC $STATIC_FLAGS -Os -s "${SOURCES}"/toys/ccwrap.c -o "${ARCH}-gcc" \
   -DGCC_UNWRAPPED_NAME='"'"$ARCH"-rawgcc'"' &&
 ln -s "${ARCH}-gcc" "${ARCH}-cc" &&
 
--- a/mini-native.sh	Wed Dec 17 19:24:08 2008 -0600
+++ b/mini-native.sh	Tue Dec 23 01:18:22 2008 -0600
@@ -193,7 +193,7 @@
 mv "${TOOLS}"/lib/gcc/*/*/include "${TOOLS}"/gcc/include &&
 mv "${TOOLS}"/lib/gcc/*/* "${TOOLS}"/gcc/lib &&
 mv "${TOOLS}/bin/gcc" "${TOOLS}/bin/rawgcc" &&
-"${ARCH}-gcc" "${SOURCES}"/toys/gcc-uClibc.c -Os -s -o "${TOOLS}/bin/gcc" \
+"${ARCH}-gcc" "${SOURCES}"/toys/ccwrap.c -Os -s -o "${TOOLS}/bin/gcc" \
   -DGCC_UNWRAPPED_NAME='"rawgcc"' -DGIMME_AN_S &&
 
 # Wrap C++
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sources/toys/ccwrap.c	Tue Dec 23 01:18:22 2008 -0600
@@ -0,0 +1,493 @@
+/* vi: set ts=4 :*/
+/*
+ * Copyright (C) 2000 Manuel Novoa III
+ * Copyright (C) 2002-2003 Erik Andersen
+ * Copyright (C) 2006 Rob Landley <rob@landley.net>
+ *
+ * Wrapper to use uClibc with gcc, and make gcc relocatable.
+ */
+
+#define _GNU_SOURCE
+#include <alloca.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <strings.h>
+#include <unistd.h>
+#include <errno.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+
+static char *topdir;
+static char static_linking[] = "-static";
+static char nostdinc[] = "-nostdinc";
+static char nostartfiles[] = "-nostartfiles";
+static char nodefaultlibs[] = "-nodefaultlibs";
+static char nostdlib[] = "-nostdlib";
+
+// For C++
+static char nostdinc_plus[] = "-nostdinc++";
+
+// #define GIMME_AN_S for wrapper to support --enable-shared toolchain.
+
+#ifdef GIMME_AN_S
+#define ADD_GCC_S() \
+	do { \
+		if (!use_static_linking) \
+			gcc_argv[argcnt++] = "-Wl,--as-needed,-lgcc_s,--no-as-needed"; \
+		else gcc_argv[argcnt++] = "-lgcc_eh"; \
+	} while (0);
+#else
+#define ADD_GCC_S()
+#endif
+
+// Confirm that a regular file exists, and (optionally) has the executable bit.
+int is_file(char *filename, int has_exe)
+{
+	// Confirm it has the executable bit set, if necessary.
+	if (!has_exe || !access(filename, X_OK)) {
+		struct stat st;
+
+		// Confirm it exists and is not a directory.
+		if (!stat(filename, &st) && S_ISREG(st.st_mode)) return 1;
+	}
+	return 0;
+}
+
+// Find an executable in a colon-separated path
+
+char *find_in_path(char *path, char *filename, int has_exe)
+{
+	char *cwd = getcwd(NULL, 0);
+
+	if (index(filename, '/') && is_file(filename, has_exe))
+		return strdup(filename);
+
+	for (;;) {
+		char *str, *next = path ? index(path, ':') : NULL;
+		int len = next ? next-path : strlen(path);
+
+		// The +3 is a corner case: if strlen(filename) is 1, make sure we
+		// have enough space to append ".." to make topdir.
+		str = malloc(strlen(filename) + (len ? len : strlen(cwd)) + 3);
+		if (!len) sprintf(str, "%s/%s", cwd, filename);
+		else {
+			char *str2 = str;
+
+			strncpy(str, path, len);
+			str2 = str+len;
+			*(str2++) = '/';
+			strcpy(str2, filename);
+		}
+
+		// If it's not a directory, return it.
+		if (is_file(str, has_exe)) return str;
+		else free(str);
+
+		if (!next) break;
+		path += len;
+		path++;
+	}
+	free(cwd);
+
+	return NULL;
+}
+
+int main(int argc, char **argv)
+{
+	int linking = 1, use_static_linking = 0;
+	int use_stdinc = 1, use_start = 1, use_stdlib = 1, use_pic = 0;
+	int source_count = 0, verbose = 0;
+	int i, argcnt, liblen, lplen;
+	char **gcc_argv, **libraries, **libpath;
+	char *dlstr, *incstr, *devprefix, *libstr;
+	char *cc, *rpath_link, *rpath;
+	char *crtbegin_path[2], *crtend_path[2];
+	char *debug_wrapper=getenv("WRAPPER_DEBUG");
+
+	// For C++
+
+	char *crti_path, *crtn_path, *cpp = NULL;
+	int len, ctor_dtor = 1, use_nostdinc_plus = 0;
+
+	// For profiling
+	int profile = 0;
+	char *gcrt1_path;
+
+	if(debug_wrapper) {
+		fprintf(stderr,"incoming: ");
+		for(gcc_argv=argv;*gcc_argv;gcc_argv++)
+			fprintf(stderr,"%s ",*gcc_argv);
+		fprintf(stderr,"\n\n");
+	}
+
+	// Allocate space for new command line
+	gcc_argv = alloca(sizeof(char*) * (argc + 128));
+
+	// What directory is the wrapper script in?
+	if(!(topdir = find_in_path(getenv("PATH"), argv[0], 1))) {
+		fprintf(stderr, "can't find %s in $PATH\n", argv[0]);
+		exit(1);
+	} else {
+		char *path = getenv("PATH"), *temp;
+
+		// Add that directory to the start of $PATH.  (Better safe than sorry.)
+		*rindex(topdir,'/') = 0;
+		temp = malloc(5+strlen(topdir)+1+strlen(topdir)+14+strlen(path)+1);
+		sprintf(temp,"PATH=%s:%s/../tools/bin:%s",topdir,topdir,path);
+		putenv(temp);
+
+		// The directory above the wrapper script should have include, gcc,
+		// and lib directories.  However, the script could have a symlink
+		// pointing to its directory (ala /bin -> /usr/bin), so append ".."
+		// instead of trucating the path.
+		strcat(topdir,"/..");
+	}
+
+	// What's the name of the C compiler we're wrapping?  (It may have a
+	// cross-prefix.)
+	cc = getenv("WRAPPER_CC");
+	if (!cc) cc = GCC_UNWRAPPED_NAME;
+
+	// Check end of name, since there could be a cross-prefix on the thing
+	len = strlen(argv[0]);
+	if (!strcmp(argv[0]+len-2, "ld")) {
+
+		// TODO: put support for wrapping the linker here.
+
+	// Wrapping the c++ compiler?
+	} else if (!strcmp(argv[0]+len-2, "++")) {
+		len = strlen(cc);
+		cpp = alloca(len+1);
+		strcpy(cpp, cc);
+		cpp[len-1]='+';
+		cpp[len-2]='+';
+		use_nostdinc_plus = 1;
+	}
+
+	devprefix = getenv("WRAPPER_TOPDIR");
+	if (!devprefix) {
+		devprefix = topdir;
+	}
+
+	incstr = getenv("UCLIBC_GCC_INC");
+	libstr = getenv("UCLIBC_GCC_LIB");
+
+	asprintf(&rpath_link,"-Wl,-rpath-link,%s/lib", devprefix);
+	asprintf(&rpath, "-Wl,-rpath,%s/lib", devprefix);
+
+	asprintf(&crti_path, "%s/lib/crti.o", devprefix);
+	asprintf(&crtn_path, "%s/lib/crtn.o", devprefix);
+
+	// profiling
+	asprintf(&gcrt1_path, "%s/lib/gcrt1.o", devprefix);
+
+	// Figure out where the dynamic linker is.
+	dlstr = getenv("UCLIBC_DYNAMIC_LINKER");
+	if (!dlstr) dlstr = "/lib/ld-uClibc.so.0";
+	asprintf(&dlstr, "-Wl,--dynamic-linker,%s", dlstr);
+
+	liblen = 0;
+	libraries = alloca(sizeof(char*) * (argc));
+	libraries[liblen] = 0;
+
+	lplen = 0;
+	libpath = alloca(sizeof(char*) * (argc));
+	libpath[lplen] = 0;
+
+	// Parse the incoming gcc arguments.
+
+	for ( i = 1 ; i < argc ; i++ ) {
+		if (argv[i][0] == '-' && argv[i][1]) { /* option */
+			switch (argv[i][1]) {
+				case 'M':	    /* generate dependencies */
+				{
+					char *p = argv[i];
+
+					// -M and -MM imply -E and thus no linking
+					// Other -MX options _don't_, including -MMD.
+					if (p[2] && (p[2]!='M' || p[3])) break;
+				}
+				// fall through
+
+				case 'c':		/* compile or assemble */
+				case 'S':		/* generate assembler code */
+				case 'E':		/* preprocess only */
+					linking = 0;
+					break;
+
+				case 'L': 		/* library path */
+					libpath[lplen++] = argv[i];
+					libpath[lplen] = 0;
+					if (!argv[i][2]) {
+						argv[i] = 0;
+						libpath[lplen++] = argv[++i];
+						libpath[lplen] = 0;
+					}
+					argv[i] = 0;
+					break;
+
+				case 'l': 		/* library */
+					libraries[liblen++] = argv[i];
+					libraries[liblen] = 0;
+					argv[i] = 0;
+					break;
+
+				case 'v':		/* verbose */
+					if (argv[i][2] == 0) verbose = 1;
+					printf("Invoked as %s\n", argv[0]);
+					printf("Reference path: %s\n", topdir);
+					break;
+
+				case 'n':
+					if (strcmp(nostdinc,argv[i]) == 0) {
+						use_stdinc = 0;
+					} else if (strcmp(nostartfiles,argv[i]) == 0) {
+						ctor_dtor = 0;
+						use_start = 0;
+					} else if (strcmp(nodefaultlibs,argv[i]) == 0) {
+						use_stdlib = 0;
+						argv[i] = 0;
+					} else if (strcmp(nostdlib,argv[i]) == 0) {
+						ctor_dtor = 0;
+						use_start = 0;
+						use_stdlib = 0;
+					} else if (strcmp(nostdinc_plus,argv[i]) == 0) {
+						if (cpp) use_nostdinc_plus = 0;
+					}
+					break;
+
+				case 's':
+					if (strstr(argv[i],static_linking) != NULL) {
+						use_static_linking = 1;
+					}
+					if (strcmp("-shared",argv[i]) == 0) {
+						use_start = 0;
+						use_pic = 1;
+					}
+					break;
+
+				case 'W':		/* -static could be passed directly to ld */
+					if (strncmp("-Wl,",argv[i],4) == 0) {
+						if (strstr(argv[i],static_linking) != 0) {
+							use_static_linking = 1;
+						}
+						if (strstr(argv[i],"--dynamic-linker") != 0) {
+							dlstr = 0;
+						}
+					}
+					break;
+
+                case 'p':
+wow_this_sucks:
+					if (!strncmp("-print-",argv[i],7)) {
+						char *temp, *temp2;
+						int itemp, showall = 0;
+
+						temp = argv[i]+7;
+						if (!strcmp(temp, "search-dirs")) {
+							printf("install: %s/\n",devprefix);
+							printf("programs: %s\n",getenv("PATH"));
+							printf("libraries: ");
+							temp2 = "";
+							showall = 1;
+						} else if (!strncmp(temp, "file-name=", 10))
+							temp2 = temp+10;
+						else if (!strcmp(temp, "libgcc-file-name"))
+							temp2="libgcc.a";
+						else break;
+
+						// Find this entry in the library path.
+						for(itemp=0;;itemp++) {
+							if (itemp == lplen)
+								asprintf(&temp, "%s/gcc/lib/%s", devprefix,	temp2);
+							else if (itemp == lplen+1)
+								asprintf(&temp, "%s/lib/%s", devprefix, temp2);
+
+							// This is so "include" finds the gcc internal
+							// include dir.  The uClibc build needs this.
+							else if (itemp == lplen+2)
+								asprintf(&temp, "%s/gcc/%s", devprefix, temp2);
+							else if (itemp == lplen+3) {
+								temp = temp2;
+								break;
+							} else asprintf(&temp, "%s/%s", libpath[itemp],
+											temp2);
+
+							if (debug_wrapper)
+								fprintf(stderr, "try=%s\n", temp);
+
+							if (showall) printf(":%s"+(itemp?0:1), temp);
+							else if (!access(temp, F_OK)) break;
+						}
+
+
+
+						printf("%s\n"+(showall ? 2 : 0), temp);
+						exit(0);
+
+					// Profiling.
+					} else if (!strcmp("-pg",argv[i])) profile = 1;
+					break;
+
+				case 'f':
+					/* Check if we are doing PIC */
+					if (strcmp("-fPIC",argv[i]) == 0) {
+						use_pic = 1;
+					} else if (strcmp("-fpic",argv[i]) == 0) {
+						use_pic = 1;
+ 
+					// profiling
+					} else if (strcmp("-fprofile-arcs",argv[i]) == 0) {
+						profile = 1;
+					}
+					break;
+
+				// --longopts
+
+				case '-':
+					if (!strncmp(argv[i],"--print-",8)) {
+						argv[i]++;
+						goto wow_this_sucks;
+					} else if (strstr(argv[i]+1,static_linking) != NULL) {
+						use_static_linking = 1;
+						argv[i] = 0;
+					} else if (!strcmp("--version",argv[i])) {
+						printf("uClibc ");
+						fflush(stdout);
+						break;
+					} else if (strcmp ("--uclibc-cc", argv[i]) == 0 && argv[i + 1]) {
+						cc = argv[i + 1];
+						argv[i] = 0;
+						argv[i + 1] = 0;
+					} else if (strncmp ("--uclibc-cc=", argv[i], 12) == 0) {
+						cc = argv[i] + 12;
+						argv[i] = 0;
+					} else if (strcmp("--uclibc-no-ctors",argv[i]) == 0) {
+						ctor_dtor = 0;
+						argv[i] = 0;
+					}
+					break;
+			}
+		} else {				/* assume it is an existing source file */
+			++source_count;
+		}
+	}
+
+	argcnt = 0;
+	if (ctor_dtor) {
+		asprintf(crtbegin_path, "%s/gcc/lib/crtbegin.o", devprefix);
+		asprintf(crtbegin_path+1, "%s/gcc/lib/crtbeginS.o", devprefix);
+		asprintf(crtend_path, "%s/gcc/lib/crtend.o", devprefix);
+		asprintf(crtend_path+1, "%s/gcc/lib/crtendS.o", devprefix);
+	}
+
+	gcc_argv[argcnt++] = cpp ? cpp : cc;
+
+	if (cpp) gcc_argv[argcnt++] = "-fno-use-cxa-atexit";
+
+	if (linking && source_count) {
+//#if defined HAS_ELF && ! defined HAS_MMU
+//		gcc_argv[argcnt++] = "-Wl,-elf2flt";
+//#endif
+		gcc_argv[argcnt++] = nostdlib;
+		if (use_static_linking) {
+			gcc_argv[argcnt++] = static_linking;
+		} else {
+			if (dlstr) {
+				gcc_argv[argcnt++] = dlstr;
+			}
+		}
+		for ( i = 0 ; i < lplen ; i++ )
+			if (libpath[i]) gcc_argv[argcnt++] = libpath[i];
+		gcc_argv[argcnt++] = rpath_link; /* just to be safe */
+		if( libstr )
+			gcc_argv[argcnt++] = libstr;
+
+		asprintf(gcc_argv+(argcnt++), "-L%s/lib", devprefix);
+		asprintf(gcc_argv+(argcnt++), "-L%s/gcc/lib", devprefix);
+	}
+	if (use_stdinc && source_count) {
+		gcc_argv[argcnt++] = nostdinc;
+
+		if (cpp) {
+			if (use_nostdinc_plus) {
+				gcc_argv[argcnt++] = nostdinc_plus;
+			}
+			gcc_argv[argcnt++] = "-isystem";
+			asprintf(gcc_argv+(argcnt++), "%s/c++/include", devprefix);
+		}
+
+		gcc_argv[argcnt++] = "-isystem";
+		asprintf(gcc_argv+(argcnt++), "%s/include", devprefix);
+		gcc_argv[argcnt++] = "-isystem";
+		asprintf(gcc_argv+(argcnt++), "%s/gcc/include", devprefix);
+		if(incstr) gcc_argv[argcnt++] = incstr;
+	}
+
+    gcc_argv[argcnt++] = "-U__nptl__";
+
+	if (linking && source_count) {
+
+		if (profile) {
+			gcc_argv[argcnt++] = gcrt1_path;
+		}
+		if (ctor_dtor) {
+			gcc_argv[argcnt++] = crti_path;
+			if (use_pic) {
+				gcc_argv[argcnt++] = crtbegin_path[1];
+			} else {
+				gcc_argv[argcnt++] = crtbegin_path[0];
+			}
+		}
+		if (use_start && !profile)
+			asprintf(gcc_argv+(argcnt++), "%s/lib/crt1.o", devprefix);
+
+		// Add remaining unclaimed arguments.
+
+		for (i=1; i<argc; i++) if (argv[i]) gcc_argv[argcnt++] = argv[i];
+
+		if (use_stdlib) {
+			//gcc_argv[argcnt++] = "-Wl,--start-group";
+			gcc_argv[argcnt++] = "-lgcc";
+			ADD_GCC_S();
+		}
+		for (i = 0 ; i < liblen ; i++)
+			if (libraries[i]) gcc_argv[argcnt++] = libraries[i];
+		if (use_stdlib) {
+			if (cpp) {
+				gcc_argv[argcnt++] = "-lstdc++";
+				gcc_argv[argcnt++] = "-lm";
+			}
+			gcc_argv[argcnt++] = "-lc";
+			gcc_argv[argcnt++] = "-lgcc";
+			ADD_GCC_S();
+			//gcc_argv[argcnt++] = "-Wl,--end-group";
+		}
+		if (ctor_dtor) {
+			gcc_argv[argcnt++] = crtend_path[use_pic ? 1 : 0];
+			gcc_argv[argcnt++] = crtn_path;
+		}
+	} else for (i=1; i<argc; i++) if (argv[i]) gcc_argv[argcnt++] = argv[i];
+
+	gcc_argv[argcnt++] = NULL;
+
+	if (verbose) {
+		for ( i = 0 ; gcc_argv[i] ; i++ ) {
+			printf("arg[%2i] = %s\n", i, gcc_argv[i]);
+		}
+		fflush(stdout);
+	}
+
+	if (debug_wrapper) {
+		fprintf(stderr, "outgoing: ");
+		for(i=0; gcc_argv[i]; i++) fprintf(stderr, "%s ",gcc_argv[i]);
+		fprintf(stderr, "\n\n");
+	}
+
+	//no need to free memory from xstrcat because we never return.
+	execvp(gcc_argv[0], gcc_argv);
+	fprintf(stderr, "%s: %s\n", cpp ? cpp : cc, strerror(errno));
+	exit(EXIT_FAILURE);
+}
--- a/sources/toys/gcc-uClibc.c	Wed Dec 17 19:24:08 2008 -0600
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,493 +0,0 @@
-/* vi: set ts=4 :*/
-/*
- * Copyright (C) 2000 Manuel Novoa III
- * Copyright (C) 2002-2003 Erik Andersen
- * Copyright (C) 2006 Rob Landley <rob@landley.net>
- *
- * Wrapper to use uClibc with gcc, and make gcc relocatable.
- */
-
-#define _GNU_SOURCE
-#include <alloca.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdarg.h>
-#include <string.h>
-#include <strings.h>
-#include <unistd.h>
-#include <errno.h>
-#include <sys/stat.h>
-#include <sys/wait.h>
-
-static char *topdir;
-static char static_linking[] = "-static";
-static char nostdinc[] = "-nostdinc";
-static char nostartfiles[] = "-nostartfiles";
-static char nodefaultlibs[] = "-nodefaultlibs";
-static char nostdlib[] = "-nostdlib";
-
-// For C++
-static char nostdinc_plus[] = "-nostdinc++";
-
-// #define GIMME_AN_S for wrapper to support --enable-shared toolchain.
-
-#ifdef GIMME_AN_S
-#define ADD_GCC_S() \
-	do { \
-		if (!use_static_linking) \
-			gcc_argv[argcnt++] = "-Wl,--as-needed,-lgcc_s,--no-as-needed"; \
-		else gcc_argv[argcnt++] = "-lgcc_eh"; \
-	} while (0);
-#else
-#define ADD_GCC_S()
-#endif
-
-// Confirm that a regular file exists, and (optionally) has the executable bit.
-int is_file(char *filename, int has_exe)
-{
-	// Confirm it has the executable bit set, if necessary.
-	if (!has_exe || !access(filename, X_OK)) {
-		struct stat st;
-
-		// Confirm it exists and is not a directory.
-		if (!stat(filename, &st) && S_ISREG(st.st_mode)) return 1;
-	}
-	return 0;
-}
-
-// Find an executable in a colon-separated path
-
-char *find_in_path(char *path, char *filename, int has_exe)
-{
-	char *cwd = getcwd(NULL, 0);
-
-	if (index(filename, '/') && is_file(filename, has_exe))
-		return strdup(filename);
-
-	for (;;) {
-		char *str, *next = path ? index(path, ':') : NULL;
-		int len = next ? next-path : strlen(path);
-
-		// The +3 is a corner case: if strlen(filename) is 1, make sure we
-		// have enough space to append ".." to make topdir.
-		str = malloc(strlen(filename) + (len ? len : strlen(cwd)) + 3);
-		if (!len) sprintf(str, "%s/%s", cwd, filename);
-		else {
-			char *str2 = str;
-
-			strncpy(str, path, len);
-			str2 = str+len;
-			*(str2++) = '/';
-			strcpy(str2, filename);
-		}
-
-		// If it's not a directory, return it.
-		if (is_file(str, has_exe)) return str;
-		else free(str);
-
-		if (!next) break;
-		path += len;
-		path++;
-	}
-	free(cwd);
-
-	return NULL;
-}
-
-int main(int argc, char **argv)
-{
-	int linking = 1, use_static_linking = 0;
-	int use_stdinc = 1, use_start = 1, use_stdlib = 1, use_pic = 0;
-	int source_count = 0, verbose = 0;
-	int i, argcnt, liblen, lplen;
-	char **gcc_argv, **libraries, **libpath;
-	char *dlstr, *incstr, *devprefix, *libstr;
-	char *cc, *rpath_link, *rpath;
-	char *crtbegin_path[2], *crtend_path[2];
-	char *debug_wrapper=getenv("WRAPPER_DEBUG");
-
-	// For C++
-
-	char *crti_path, *crtn_path, *cpp = NULL;
-	int len, ctor_dtor = 1, use_nostdinc_plus = 0;
-
-	// For profiling
-	int profile = 0;
-	char *gcrt1_path;
-
-	if(debug_wrapper) {
-		fprintf(stderr,"incoming: ");
-		for(gcc_argv=argv;*gcc_argv;gcc_argv++)
-			fprintf(stderr,"%s ",*gcc_argv);
-		fprintf(stderr,"\n\n");
-	}
-
-	// Allocate space for new command line
-	gcc_argv = alloca(sizeof(char*) * (argc + 128));
-
-	// What directory is the wrapper script in?
-	if(!(topdir = find_in_path(getenv("PATH"), argv[0], 1))) {
-		fprintf(stderr, "can't find %s in $PATH\n", argv[0]);
-		exit(1);
-	} else {
-		char *path = getenv("PATH"), *temp;
-
-		// Add that directory to the start of $PATH.  (Better safe than sorry.)
-		*rindex(topdir,'/') = 0;
-		temp = malloc(5+strlen(topdir)+1+strlen(topdir)+14+strlen(path)+1);
-		sprintf(temp,"PATH=%s:%s/../tools/bin:%s",topdir,topdir,path);
-		putenv(temp);
-
-		// The directory above the wrapper script should have include, gcc,
-		// and lib directories.  However, the script could have a symlink
-		// pointing to its directory (ala /bin -> /usr/bin), so append ".."
-		// instead of trucating the path.
-		strcat(topdir,"/..");
-	}
-
-	// What's the name of the C compiler we're wrapping?  (It may have a
-	// cross-prefix.)
-	cc = getenv("WRAPPER_CC");
-	if (!cc) cc = GCC_UNWRAPPED_NAME;
-
-	// Check end of name, since there could be a cross-prefix on the thing
-	len = strlen(argv[0]);
-	if (!strcmp(argv[0]+len-2, "ld")) {
-
-		// TODO: put support for wrapping the linker here.
-
-	// Wrapping the c++ compiler?
-	} else if (!strcmp(argv[0]+len-2, "++")) {
-		len = strlen(cc);
-		cpp = alloca(len+1);
-		strcpy(cpp, cc);
-		cpp[len-1]='+';
-		cpp[len-2]='+';
-		use_nostdinc_plus = 1;
-	}
-
-	devprefix = getenv("WRAPPER_TOPDIR");
-	if (!devprefix) {
-		devprefix = topdir;
-	}
-
-	incstr = getenv("UCLIBC_GCC_INC");
-	libstr = getenv("UCLIBC_GCC_LIB");
-
-	asprintf(&rpath_link,"-Wl,-rpath-link,%s/lib", devprefix);
-	asprintf(&rpath, "-Wl,-rpath,%s/lib", devprefix);
-
-	asprintf(&crti_path, "%s/lib/crti.o", devprefix);
-	asprintf(&crtn_path, "%s/lib/crtn.o", devprefix);
-
-	// profiling
-	asprintf(&gcrt1_path, "%s/lib/gcrt1.o", devprefix);
-
-	// Figure out where the dynamic linker is.
-	dlstr = getenv("UCLIBC_DYNAMIC_LINKER");
-	if (!dlstr) dlstr = "/lib/ld-uClibc.so.0";
-	asprintf(&dlstr, "-Wl,--dynamic-linker,%s", dlstr);
-
-	liblen = 0;
-	libraries = alloca(sizeof(char*) * (argc));
-	libraries[liblen] = 0;
-
-	lplen = 0;
-	libpath = alloca(sizeof(char*) * (argc));
-	libpath[lplen] = 0;
-
-	// Parse the incoming gcc arguments.
-
-	for ( i = 1 ; i < argc ; i++ ) {
-		if (argv[i][0] == '-' && argv[i][1]) { /* option */
-			switch (argv[i][1]) {
-				case 'M':	    /* generate dependencies */
-				{
-					char *p = argv[i];
-
-					// -M and -MM imply -E and thus no linking
-					// Other -MX options _don't_, including -MMD.
-					if (p[2] && (p[2]!='M' || p[3])) break;
-				}
-				// fall through
-
-				case 'c':		/* compile or assemble */
-				case 'S':		/* generate assembler code */
-				case 'E':		/* preprocess only */
-					linking = 0;
-					break;
-
-				case 'L': 		/* library path */
-					libpath[lplen++] = argv[i];
-					libpath[lplen] = 0;
-					if (!argv[i][2]) {
-						argv[i] = 0;
-						libpath[lplen++] = argv[++i];
-						libpath[lplen] = 0;
-					}
-					argv[i] = 0;
-					break;
-
-				case 'l': 		/* library */
-					libraries[liblen++] = argv[i];
-					libraries[liblen] = 0;
-					argv[i] = 0;
-					break;
-
-				case 'v':		/* verbose */
-					if (argv[i][2] == 0) verbose = 1;
-					printf("Invoked as %s\n", argv[0]);
-					printf("Reference path: %s\n", topdir);
-					break;
-
-				case 'n':
-					if (strcmp(nostdinc,argv[i]) == 0) {
-						use_stdinc = 0;
-					} else if (strcmp(nostartfiles,argv[i]) == 0) {
-						ctor_dtor = 0;
-						use_start = 0;
-					} else if (strcmp(nodefaultlibs,argv[i]) == 0) {
-						use_stdlib = 0;
-						argv[i] = 0;
-					} else if (strcmp(nostdlib,argv[i]) == 0) {
-						ctor_dtor = 0;
-						use_start = 0;
-						use_stdlib = 0;
-					} else if (strcmp(nostdinc_plus,argv[i]) == 0) {
-						if (cpp) use_nostdinc_plus = 0;
-					}
-					break;
-
-				case 's':
-					if (strstr(argv[i],static_linking) != NULL) {
-						use_static_linking = 1;
-					}
-					if (strcmp("-shared",argv[i]) == 0) {
-						use_start = 0;
-						use_pic = 1;
-					}
-					break;
-
-				case 'W':		/* -static could be passed directly to ld */
-					if (strncmp("-Wl,",argv[i],4) == 0) {
-						if (strstr(argv[i],static_linking) != 0) {
-							use_static_linking = 1;
-						}
-						if (strstr(argv[i],"--dynamic-linker") != 0) {
-							dlstr = 0;
-						}
-					}
-					break;
-
-                case 'p':
-wow_this_sucks:
-					if (!strncmp("-print-",argv[i],7)) {
-						char *temp, *temp2;
-						int itemp, showall = 0;
-
-						temp = argv[i]+7;
-						if (!strcmp(temp, "search-dirs")) {
-							printf("install: %s/\n",devprefix);
-							printf("programs: %s\n",getenv("PATH"));
-							printf("libraries: ");
-							temp2 = "";
-							showall = 1;
-						} else if (!strncmp(temp, "file-name=", 10))
-							temp2 = temp+10;
-						else if (!strcmp(temp, "libgcc-file-name"))
-							temp2="libgcc.a";
-						else break;
-
-						// Find this entry in the library path.
-						for(itemp=0;;itemp++) {
-							if (itemp == lplen)
-								asprintf(&temp, "%s/gcc/lib/%s", devprefix,	temp2);
-							else if (itemp == lplen+1)
-								asprintf(&temp, "%s/lib/%s", devprefix, temp2);
-
-							// This is so "include" finds the gcc internal
-							// include dir.  The uClibc build needs this.
-							else if (itemp == lplen+2)
-								asprintf(&temp, "%s/gcc/%s", devprefix, temp2);
-							else if (itemp == lplen+3) {
-								temp = temp2;
-								break;
-							} else asprintf(&temp, "%s/%s", libpath[itemp],
-											temp2);
-
-							if (debug_wrapper)
-								fprintf(stderr, "try=%s\n", temp);
-
-							if (showall) printf(":%s"+(itemp?0:1), temp);
-							else if (!access(temp, F_OK)) break;
-						}
-
-
-
-						printf("%s\n"+(showall ? 2 : 0), temp);
-						exit(0);
-
-					// Profiling.
-					} else if (!strcmp("-pg",argv[i])) profile = 1;
-					break;
-
-				case 'f':
-					/* Check if we are doing PIC */
-					if (strcmp("-fPIC",argv[i]) == 0) {
-						use_pic = 1;
-					} else if (strcmp("-fpic",argv[i]) == 0) {
-						use_pic = 1;
- 
-					// profiling
-					} else if (strcmp("-fprofile-arcs",argv[i]) == 0) {
-						profile = 1;
-					}
-					break;
-
-				// --longopts
-
-				case '-':
-					if (!strncmp(argv[i],"--print-",8)) {
-						argv[i]++;
-						goto wow_this_sucks;
-					} else if (strstr(argv[i]+1,static_linking) != NULL) {
-						use_static_linking = 1;
-						argv[i] = 0;
-					} else if (!strcmp("--version",argv[i])) {
-						printf("uClibc ");
-						fflush(stdout);
-						break;
-					} else if (strcmp ("--uclibc-cc", argv[i]) == 0 && argv[i + 1]) {
-						cc = argv[i + 1];
-						argv[i] = 0;
-						argv[i + 1] = 0;
-					} else if (strncmp ("--uclibc-cc=", argv[i], 12) == 0) {
-						cc = argv[i] + 12;
-						argv[i] = 0;
-					} else if (strcmp("--uclibc-no-ctors",argv[i]) == 0) {
-						ctor_dtor = 0;
-						argv[i] = 0;
-					}
-					break;
-			}
-		} else {				/* assume it is an existing source file */
-			++source_count;
-		}
-	}
-
-	argcnt = 0;
-	if (ctor_dtor) {
-		asprintf(crtbegin_path, "%s/gcc/lib/crtbegin.o", devprefix);
-		asprintf(crtbegin_path+1, "%s/gcc/lib/crtbeginS.o", devprefix);
-		asprintf(crtend_path, "%s/gcc/lib/crtend.o", devprefix);
-		asprintf(crtend_path+1, "%s/gcc/lib/crtendS.o", devprefix);
-	}
-
-	gcc_argv[argcnt++] = cpp ? cpp : cc;
-
-	if (cpp) gcc_argv[argcnt++] = "-fno-use-cxa-atexit";
-
-	if (linking && source_count) {
-//#if defined HAS_ELF && ! defined HAS_MMU
-//		gcc_argv[argcnt++] = "-Wl,-elf2flt";
-//#endif
-		gcc_argv[argcnt++] = nostdlib;
-		if (use_static_linking) {
-			gcc_argv[argcnt++] = static_linking;
-		} else {
-			if (dlstr) {
-				gcc_argv[argcnt++] = dlstr;
-			}
-		}
-		for ( i = 0 ; i < lplen ; i++ )
-			if (libpath[i]) gcc_argv[argcnt++] = libpath[i];
-		gcc_argv[argcnt++] = rpath_link; /* just to be safe */
-		if( libstr )
-			gcc_argv[argcnt++] = libstr;
-
-		asprintf(gcc_argv+(argcnt++), "-L%s/lib", devprefix);
-		asprintf(gcc_argv+(argcnt++), "-L%s/gcc/lib", devprefix);
-	}
-	if (use_stdinc && source_count) {
-		gcc_argv[argcnt++] = nostdinc;
-
-		if (cpp) {
-			if (use_nostdinc_plus) {
-				gcc_argv[argcnt++] = nostdinc_plus;
-			}
-			gcc_argv[argcnt++] = "-isystem";
-			asprintf(gcc_argv+(argcnt++), "%s/c++/include", devprefix);
-		}
-
-		gcc_argv[argcnt++] = "-isystem";
-		asprintf(gcc_argv+(argcnt++), "%s/include", devprefix);
-		gcc_argv[argcnt++] = "-isystem";
-		asprintf(gcc_argv+(argcnt++), "%s/gcc/include", devprefix);
-		if(incstr) gcc_argv[argcnt++] = incstr;
-	}
-
-    gcc_argv[argcnt++] = "-U__nptl__";
-
-	if (linking && source_count) {
-
-		if (profile) {
-			gcc_argv[argcnt++] = gcrt1_path;
-		}
-		if (ctor_dtor) {
-			gcc_argv[argcnt++] = crti_path;
-			if (use_pic) {
-				gcc_argv[argcnt++] = crtbegin_path[1];
-			} else {
-				gcc_argv[argcnt++] = crtbegin_path[0];
-			}
-		}
-		if (use_start && !profile)
-			asprintf(gcc_argv+(argcnt++), "%s/lib/crt1.o", devprefix);
-
-		// Add remaining unclaimed arguments.
-
-		for (i=1; i<argc; i++) if (argv[i]) gcc_argv[argcnt++] = argv[i];
-
-		if (use_stdlib) {
-			//gcc_argv[argcnt++] = "-Wl,--start-group";
-			gcc_argv[argcnt++] = "-lgcc";
-			ADD_GCC_S();
-		}
-		for (i = 0 ; i < liblen ; i++)
-			if (libraries[i]) gcc_argv[argcnt++] = libraries[i];
-		if (use_stdlib) {
-			if (cpp) {
-				gcc_argv[argcnt++] = "-lstdc++";
-				gcc_argv[argcnt++] = "-lm";
-			}
-			gcc_argv[argcnt++] = "-lc";
-			gcc_argv[argcnt++] = "-lgcc";
-			ADD_GCC_S();
-			//gcc_argv[argcnt++] = "-Wl,--end-group";
-		}
-		if (ctor_dtor) {
-			gcc_argv[argcnt++] = crtend_path[use_pic ? 1 : 0];
-			gcc_argv[argcnt++] = crtn_path;
-		}
-	} else for (i=1; i<argc; i++) if (argv[i]) gcc_argv[argcnt++] = argv[i];
-
-	gcc_argv[argcnt++] = NULL;
-
-	if (verbose) {
-		for ( i = 0 ; gcc_argv[i] ; i++ ) {
-			printf("arg[%2i] = %s\n", i, gcc_argv[i]);
-		}
-		fflush(stdout);
-	}
-
-	if (debug_wrapper) {
-		fprintf(stderr, "outgoing: ");
-		for(i=0; gcc_argv[i]; i++) fprintf(stderr, "%s ",gcc_argv[i]);
-		fprintf(stderr, "\n\n");
-	}
-
-	//no need to free memory from xstrcat because we never return.
-	execvp(gcc_argv[0], gcc_argv);
-	fprintf(stderr, "%s: %s\n", cpp ? cpp : cc, strerror(errno));
-	exit(EXIT_FAILURE);
-}