diff options
| author | Yu-Ping Wu <yupingso@chromium.org> | 2019-12-02 11:11:53 +0800 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2019-12-16 09:47:38 +0000 |
| commit | 41956b574212224127ba393f6e65be88de6f3f21 (patch) | |
| tree | debd4257ed82d396953a848f1a06b1e0145f91a4 /payloads/libpayload/include | |
| parent | c32ca089c97198a7f715c91d8a8be0d94c67953c (diff) | |
libpayload: Implement reading from CBMEM console
To support showing CBMEM logs on recovery screen, add a function
cbmem_console_snapshot() to copy the CBMEM console to an allocated
buffer. Non-printable characters are automatically replaced with '?' to
ensure the returned string is printable.
BRANCH=none
BUG=b:146105976
TEST=emerge-nami libpayload
Change-Id: Ie324055f5fd8276f1d833fc9d04f60a792dbb9f6
Signed-off-by: Yu-Ping Wu <yupingso@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37667
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Diffstat (limited to 'payloads/libpayload/include')
| -rw-r--r-- | payloads/libpayload/include/libpayload.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/payloads/libpayload/include/libpayload.h b/payloads/libpayload/include/libpayload.h index 934c368e5c..4b6a250f28 100644 --- a/payloads/libpayload/include/libpayload.h +++ b/payloads/libpayload/include/libpayload.h @@ -313,6 +313,13 @@ void video_printf(int foreground, int background, enum video_printf_align align, */ void cbmem_console_init(void); void cbmem_console_write(const void *buffer, size_t count); +/** + * Take a snapshot of the CBMEM memory console. This function will allocate a + * range of memory. Callers must free the returned buffer by themselves. + * + * @return The allocated buffer on success, NULL on failure. + */ +char *cbmem_console_snapshot(void); /** @} */ /* drivers/option.c */ |