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| author | Simon Glass <sjg@chromium.org> | 2011-06-29 09:49:34 +0000 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2011-09-10 00:04:01 +0200 |
| commit | 21726a7afce16b882b5cedf70a0c112caea945be (patch) | |
| tree | 8c4e45ababfc547cc27eca5d9ce4d6b1907af2e1 /include | |
| parent | 6a8760d748b432f5c7df01c6d23a3f11c11a6878 (diff) | |
| download | u-boot-imx-21726a7afce16b882b5cedf70a0c112caea945be.zip u-boot-imx-21726a7afce16b882b5cedf70a0c112caea945be.tar.gz u-boot-imx-21726a7afce16b882b5cedf70a0c112caea945be.tar.bz2 | |
Add assert() for debug assertions
assert() is like BUG_ON() but compiles to nothing unless DEBUG is defined.
This is useful when a condition is an error but a board reset is unlikely
to fix it, so it is better to soldier on in hope. Assertion failures should
be caught during development/test.
It turns out that assert() is defined separately in a few places in U-Boot
with various meanings. This patch cleans up some of these.
Build errors exposed by this change (and defining DEBUG) are also fixed in
this patch.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/common.h | 21 | ||||
| -rw-r--r-- | include/malloc.h | 8 |
2 files changed, 21 insertions, 8 deletions
diff --git a/include/common.h b/include/common.h index af8b154..d244bd4 100644 --- a/include/common.h +++ b/include/common.h @@ -124,6 +124,27 @@ typedef volatile unsigned char vu_char; #define debugX(level,fmt,args...) #endif /* DEBUG */ +#ifdef DEBUG +# define _DEBUG 1 +#else +# define _DEBUG 0 +#endif + +/* + * An assertion is run-time check done in debug mode only. If DEBUG is not + * defined then it is skipped. If DEBUG is defined and the assertion fails, + * then it calls panic*( which may or may not reset/halt U-Boot (see + * CONFIG_PANIC_HANG), It is hoped that all failing assertions are found + * before release, and after release it is hoped that they don't matter. But + * in any case these failing assertions cannot be fixed with a reset (which + * may just do the same assertion again). + */ +void __assert_fail(const char *assertion, const char *file, unsigned line, + const char *function); +#define assert(x) \ + ({ if (!(x) && _DEBUG) \ + __assert_fail(#x, __FILE__, __LINE__, __func__); }) + #define error(fmt, args...) do { \ printf("ERROR: " fmt "\nat %s:%d/%s()\n", \ ##args, __FILE__, __LINE__, __func__); \ diff --git a/include/malloc.h b/include/malloc.h index 3e145ad..ecf3c67 100644 --- a/include/malloc.h +++ b/include/malloc.h @@ -285,14 +285,6 @@ extern "C" { */ -#ifdef DEBUG -/* #include <assert.h> */ -#define assert(x) ((void)0) -#else -#define assert(x) ((void)0) -#endif - - /* INTERNAL_SIZE_T is the word-size used for internal bookkeeping of chunk sizes. On a 64-bit machine, you can reduce malloc |