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| author | Hung-Te Lin <hungte@chromium.org> | 2013-01-28 15:53:34 +0800 |
|---|---|---|
| committer | Hung-Te Lin <hungte@chromium.org> | 2013-02-01 06:50:17 +0100 |
| commit | 332795cc5951c6d65badd2bbf3c79f6b63dbdbc2 (patch) | |
| tree | b6e6d44b49e53b2cf1c99fb80db5e6b20043c340 /util/cbfstool/common.c | |
| parent | d723c5b554786794217a92acb4ce0096bf924da8 (diff) | |
| download | coreboot-332795cc5951c6d65badd2bbf3c79f6b63dbdbc2.tar.xz | |
cbfstool: Make endian detection functions to work without prior setup.
The 'host_bigendian' variable (and functions relying on it like ntohl/htonl)
requires host detection by calling static which_endian() first -- which may be
easily forgotten by developers. It's now a public function in common.c and
doesn't need initialization anymore.
Change-Id: I13dabd1ad15d2d6657137d29138e0878040cb205
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: http://review.coreboot.org/2199
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Diffstat (limited to 'util/cbfstool/common.c')
| -rw-r--r-- | util/cbfstool/common.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/util/cbfstool/common.c b/util/cbfstool/common.c index 3394b7b536..d4560f691f 100644 --- a/util/cbfstool/common.c +++ b/util/cbfstool/common.c @@ -27,6 +27,19 @@ #include "cbfs.h" #include "elf.h" +/* Utilities */ + +/* Small, OS/libc independent runtime check for endianess */ +int is_big_endian(void) +{ + static const uint32_t inttest = 0x12345678; + uint8_t inttest_lsb = *(uint8_t *)&inttest; + if (inttest_lsb == 0x12) { + return 1; + } + return 0; +} + size_t getfilesize(const char *filename) { size_t size; |