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2022-01-18script/sorttable: Fix some initialization problemsYinan Liu1-2/+3
elf_mcount_loc and mcount_sort_thread definitions are not initialized immediately within the function, which can cause the judgment logic to use uninitialized values when the initialization logic of subsequent code fails. Link: https://lkml.kernel.org/r/[email protected] Link: https://lkml.kernel.org/r/[email protected] Fixes: 72b3942a173c ("scripts: ftrace - move the sort-processing in ftrace_init") Tested-by: Nathan Chancellor <[email protected]> Reviewed-by: Nathan Chancellor <[email protected]> Signed-off-by: Yinan Liu <[email protected]> Signed-off-by: Steven Rostedt <[email protected]>
2022-01-13scripts: ftrace - move the sort-processing in ftrace_initYinan Liu1-2/+118
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/[email protected] Signed-off-by: Yinan Liu <[email protected]> Reported-by: kernel test robot <[email protected]> Reported-by: kernel test robot <[email protected]> Signed-off-by: Steven Rostedt <[email protected]>
2021-12-11script/sorttable: Code style improvementsYinan Liu1-2/+2
Modified the code style issue of if() {}, keep the code style consistent. Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Yinan Liu <[email protected]> Signed-off-by: Steven Rostedt (VMware) <[email protected]>
2019-12-13scripts/sorttable: Implement build-time ORC unwind table sortingShile Zhang1-5/+175
The ORC unwinder has two tables: .orc_unwind_ip and .orc_unwind, which need to be sorted for binary search. Previously this sorting was done during bootup. Sort them at build time to speed up booting. Add the ORC tables sorting in a parallel build process to speed up the build. [ mingo: Rewrote the changelog and fixed some comments. ] Suggested-by: Andy Lutomirski <[email protected]> Suggested-by: Peter Zijlstra <[email protected]> Reported-by: kbuild test robot <[email protected]> Signed-off-by: Shile Zhang <[email protected]> Acked-by: Peter Zijlstra (Intel) <[email protected]> Cc: Josh Poimboeuf <[email protected]> Cc: Masahiro Yamada <[email protected]> Cc: Michal Marek <[email protected]> Cc: [email protected] Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
2019-12-13scripts/sorttable: Rename 'sortextable' to 'sorttable'Shile Zhang1-0/+210
Use a more generic name for additional table sorting usecases, such as the upcoming ORC table sorting feature. This tool is not tied to exception table sorting anymore. No functional changes intended. [ mingo: Rewrote the changelog. ] Signed-off-by: Shile Zhang <[email protected]> Acked-by: Peter Zijlstra (Intel) <[email protected]> Cc: Josh Poimboeuf <[email protected]> Cc: Masahiro Yamada <[email protected]> Cc: Michal Marek <[email protected]> Cc: [email protected] Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>