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| author | Yinan Liu <yinan@linux.alibaba.com> | 2021-12-12 14:33:58 +0300 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2022-01-14 00:23:04 +0300 |
| commit | 72b3942a173c387b27860ba1069636726e208777 (patch) | |
| tree | f5c9e5f29af4aeae0dbaf9d7232dd985cc5cf4b3 /scripts/link-vmlinux.sh | |
| parent | 1c1857d400355e96f0fe8b32adc6fa7594d03b52 (diff) | |
| download | linux-72b3942a173c387b27860ba1069636726e208777.tar.xz | |
scripts: ftrace - move the sort-processing in ftrace_init
When the kernel starts, the initialization of ftrace takes
up a portion of the time (approximately 6~8ms) to sort mcount
addresses. We can save this time by moving mcount-sorting to
compile time.
Link: https://lkml.kernel.org/r/20211212113358.34208-2-yinan@linux.alibaba.com
Signed-off-by: Yinan Liu <yinan@linux.alibaba.com>
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: kernel test robot <oliver.sang@intel.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'scripts/link-vmlinux.sh')
| -rwxr-xr-x | scripts/link-vmlinux.sh | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh index 5cdd9bc5c385..dd9955f45774 100755 --- a/scripts/link-vmlinux.sh +++ b/scripts/link-vmlinux.sh @@ -400,6 +400,9 @@ if [ -n "${CONFIG_DEBUG_INFO_BTF}" -a -n "${CONFIG_BPF}" ]; then ${RESOLVE_BTFIDS} vmlinux fi +info SYSMAP System.map +mksysmap vmlinux System.map + if [ -n "${CONFIG_BUILDTIME_TABLE_SORT}" ]; then info SORTTAB vmlinux if ! sorttable vmlinux; then @@ -408,9 +411,6 @@ if [ -n "${CONFIG_BUILDTIME_TABLE_SORT}" ]; then fi fi -info SYSMAP System.map -mksysmap vmlinux System.map - # step a (see comment above) if [ -n "${CONFIG_KALLSYMS}" ]; then mksysmap ${kallsyms_vmlinux} .tmp_System.map |