arm-trusted-firmware/common
Soby Mathew 7f56e9a31c Implement log framework
This patch gives users control over logging messages printed from the C
code using the LOG macros defined in debug.h Users now have the ability
to reduce the log_level at run time using the tf_log_set_max_level()
function. The default prefix string can be defined by platform by
overriding the `plat_log_get_prefix()` platform API which is also
introduced in this patch.

The new log framework results in saving of some RO data. For example,
when BL1 is built for FVP with LOG_LEVEL=LOG_LEVEL_VERBOSE, resulted
in saving 384 bytes of RO data and increase of 8 bytes of RW data. The
framework also adds about 108 bytes of code to the release build of FVP.

Fixes ARM-software/tf-issues#462

Change-Id: I476013d9c3deedfdd4c8b0b0f125665ba6250554
Co-authored-by: Eleanor Bonnici <Eleanor.bonnici@arm.com>
Signed-off-by: Soby Mathew <soby.mathew@arm.com>
2017-09-11 15:37:24 +01:00
..
aarch32 Fix x30 reporting for unhandled exceptions 2017-08-21 13:50:54 -07:00
aarch64 Fix x30 reporting for unhandled exceptions 2017-08-21 13:50:54 -07:00
bl_common.c Use SPDX license identifiers 2017-05-03 09:39:28 +01:00
desc_image_load.c Use SPDX license identifiers 2017-05-03 09:39:28 +01:00
runtime_svc.c Tegra: enable 'signed-comparison' compilation warning/errors 2017-06-14 14:59:07 -07:00
tf_log.c Implement log framework 2017-09-11 15:37:24 +01:00
tf_printf.c Introduce tf_vprintf() and tf_string_print() 2017-09-11 15:35:41 +01:00
tf_snprintf.c Introduce `tf_snprintf` 2017-05-24 10:47:05 +01:00