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| author | Wolfgang Denk <wd@denx.de> | 2011-12-23 01:29:12 +0000 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2011-12-23 20:08:10 +0100 |
| commit | 7ddd4475a8f7cabfa86c7f61452cc49facbe172a (patch) | |
| tree | 2c51850f9832ae3a2002d35df28fe111d50e4f3f /post/lib_powerpc | |
| parent | 38081ff7a4c43cc77bac3f7e85b6592b50d136a8 (diff) | |
| download | u-boot-imx-7ddd4475a8f7cabfa86c7f61452cc49facbe172a.zip u-boot-imx-7ddd4475a8f7cabfa86c7f61452cc49facbe172a.tar.gz u-boot-imx-7ddd4475a8f7cabfa86c7f61452cc49facbe172a.tar.bz2 | |
post/lib_powerpc/multi.c: fix stack overflow error
The code and comment disagreed: the comment claimed that r6...r31
were copied, and consequently the arrays for "src" and "dst" were
declared with 26 entries, but the actual code ("lmw r5,0(r3)" and
"stmw r5,0(r4)") copied _27_ words (r5 through r31), which resulted
in false "POST cpu Error at multi test" messages.
Fix the comment and the array sizes.
Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Anatolij Gustschin <agust@denx.de>
Cc: Stefan Roese <sr@denx.de>
Cc: Kumar Gala <galak@kernel.crashing.org>
Cc: Kim Phillips <kim.phillips@freescale.com>
Cc: Andy Fleming <afleming@gmail.com>
Acked-by: Anatolij Gustschin <agust@denx.de>
Tested-by: Anatolij Gustschin <agust@denx.de>
Diffstat (limited to 'post/lib_powerpc')
| -rw-r--r-- | post/lib_powerpc/multi.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/post/lib_powerpc/multi.c b/post/lib_powerpc/multi.c index f9fe719..e9814a6 100644 --- a/post/lib_powerpc/multi.c +++ b/post/lib_powerpc/multi.c @@ -27,9 +27,9 @@ * CPU test * Load/store multiple word instructions: lmw, stmw * - * 26 consecutive words are loaded from a source memory buffer - * into GPRs r6 through r31. After that, 26 consecutive words are stored - * from the GPRs r6 through r31 into a target memory buffer. The contents + * 27 consecutive words are loaded from a source memory buffer + * into GPRs r5 through r31. After that, 27 consecutive words are stored + * from the GPRs r5 through r31 into a target memory buffer. The contents * of the source and target buffers are then compared. */ @@ -44,7 +44,7 @@ int cpu_post_test_multi(void) { int ret = 0; unsigned int i; - ulong src[26], dst[26]; + ulong src[27], dst[27]; int flag = disable_interrupts(); ulong code[] = { |