bloatcheck: toybox_old toybox_unstripped
@scripts/bloat-o-meter toybox_old toybox_unstripped
-# Actual build
+# Get list of toys/*.c files from .config
-toyfiles = main.c toys/*.c lib/*.c
-toybox_unstripped: gen_config.h $(toyfiles) toys/toylist.h lib/lib.h toys.h
+toysfiles = $(shell sed -nre 's/^CONFIG_(.*)=y/\1/;t skip;b;:skip;s/_.*//;p' .config | sort -u | tr A-Z a-z | grep -v '^toybox$$' | sed -r 's@(.*)@toys/\1.c@')
+
+# Compile toybox from source
+
+toyfiles = main.c lib/*.c $(toysfiles)
+toybox_unstripped: gen_config.h $(toyfiles) toys/toylist.h lib/*.h toys.h
$(CC) $(CFLAGS) -I . $(toyfiles) -o toybox_unstripped \
- -ffunction-sections -fdata-sections -Wl,--gc-sections #\
- #2>&1 | sed -n -e '/may be used uninitialized/{s/.*/\n/;h;b};1{x;b};: print;=;p;x;/\n/b thing;p;: thing;${x;p}' >&2
+ -ffunction-sections -fdata-sections -Wl,--gc-sections
toybox: toybox_unstripped
$(STRIP) toybox_unstripped -o toybox
// Decompress a block of text to intermediate buffer
int read_bunzip_data(bunzip_data *bd)
{
- struct group_data *hufGroup;
+ struct group_data *hufGroup GCC_BUG;
unsigned origPtr;
- int dbufCount, nextSym, dbufSize, groupCount, *base, *limit,
+ int dbufCount, nextSym, dbufSize, groupCount, *base GCC_BUG, *limit GCC_BUG,
selector, i, j, k, t, runPos, symCount, symTotal, nSelectors,
byteCount[256];
char uc, mtfSymbol[256], symToByte[256], *selectors;
#define SWAP_LE32(x) (x)
#define SWAP_LE64(x) (x)
#endif
+
+// Some versions of gcc produce spurious "may be uninitialized" warnings in
+// cases where it provably can't happen. Unfortunately, although this warning
+// is calculated and produced separately from the "is definitely used
+// uninitialized" warnings, there's no way to turn off the broken spurious "may
+// be" warnings without also turning off the non-broken "is" warnings.
+
+#if CFG_TOYBOX_DEBUG
+#define GCC_BUG =0
+#else
+#define GCC_BUG
+#endif
* Licensed under GPL version 2, see file LICENSE in this tarball for details.
*/
+#include "gen_config.h"
+
#include "lib/portability.h"
#include <ctype.h>
+#include <dirent.h>
#include <errno.h>
#include <fcntl.h>
#include <inttypes.h>
#include <unistd.h>
#include "lib/lib.h"
-#include "gen_config.h"
#include "toys/e2fs.h"
#include "toys/toylist.h"