diff options
Diffstat (limited to 'src/commonlib')
| -rw-r--r-- | src/commonlib/include/commonlib/loglevel.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/commonlib/include/commonlib/loglevel.h b/src/commonlib/include/commonlib/loglevel.h index 1594465c37..34d9824179 100644 --- a/src/commonlib/include/commonlib/loglevel.h +++ b/src/commonlib/include/commonlib/loglevel.h @@ -201,6 +201,20 @@ static const char bios_log_escape[BIOS_LOG_PREFIX_MAX_LEVEL + 1][8] = { [BIOS_SPEW] = "0", }; +/* + * When storing console logs somewhere for later retrieval, log level prefixes + * and escape sequences should not be stored raw to preserve space. Instead, a + * non-printable control character marker is inserted into the log to indicate + * the log level. Decoders reading this character should translate it back into + * the respective escape sequence and prefix. If a decoder doesn't support this + * feature, the non-printable character should usually be harmless. + */ +#define BIOS_LOG_MARKER_START 0x10 +#define BIOS_LOG_MARKER_END (BIOS_LOG_MARKER_START + BIOS_LOG_PREFIX_MAX_LEVEL) +#define BIOS_LOG_IS_MARKER(c) ((c) >= BIOS_LOG_MARKER_START && (c) <= BIOS_LOG_MARKER_END) +#define BIOS_LOG_LEVEL_TO_MARKER(level) (BIOS_LOG_MARKER_START + (level)) +#define BIOS_LOG_MARKER_TO_LEVEL(c) ((c) - BIOS_LOG_MARKER_START) + #endif /* __ASSEMBLER__ */ #endif /* LOGLEVEL_H */ |