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| author | Randall Spangler <rspangler@chromium.org> | 2013-11-04 11:24:30 -0800 |
|---|---|---|
| committer | chrome-internal-fetch <chrome-internal-fetch@google.com> | 2013-11-05 02:32:40 +0000 |
| commit | efb6bc76553ca8c425a3c6683fbf2790d030064e (patch) | |
| tree | a7e60695e169f54e42abc592bfff53f48883c3bf /include/system.h | |
| parent | 5d672b91a7f0d83e278b6f48dbd29105aabfb897 (diff) | |
| download | chrome-ec-efb6bc76553ca8c425a3c6683fbf2790d030064e.tar.gz | |
Pad jump tags to 4 bytes inside the system module
That way all the users of jump tags don't need to know about the
padding requirements.
BUG=chrome-os-partner:23851
BRANCH=none
TEST=enable CONFIG_CMD_JUMPTAGS, then 'jumptags'. Output should be
something like this:
20007fbc: 0x5550 UP.1 2
20007fc4: 0x4b42 KB.2 3
20007fcc: 0x4c50 LP.1 12
20007fdc: 0x4d54 MT.1 8
All the addresses in the first column should be word-aligned. The
sizes in the last column don't need to be a multiple of 4.
Change-Id: I91f9c29701a007ef8a56b5b7e0ea09930dfbea31
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/175591
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
Diffstat (limited to 'include/system.h')
| -rw-r--r-- | include/system.h | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/include/system.h b/include/system.h index cf936d64bf..b4c68bd3ce 100644 --- a/include/system.h +++ b/include/system.h @@ -109,8 +109,7 @@ int system_jumped_to_this_image(void); * This may ONLY be called from within a HOOK_SYSJUMP handler. * * @param tag Data type - * @param size Size of data; must be a multiple of 4 bytes, and less - * than 255 bytes. + * @param size Size of data; must be less than 255 bytes. * @param version Data version, so that tag data can evolve as firmware * is updated. * @param data Pointer to data to save @@ -128,7 +127,7 @@ int system_add_jump_tag(uint16_t tag, int version, int size, const void *data); * @param version Set to data version if successful * @param size Set to data size if successful * @return A pointer to the data, or NULL if no matching tag is - * found. + * found. This pointer will be 32-bit aligned. */ const uint8_t *system_get_jump_tag(uint16_t tag, int *version, int *size); |