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author | Linus Torvalds <torvalds@linux-foundation.org> | 2024-03-22 10:22:45 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2024-03-22 10:22:45 -0700 |
commit | 1e3cd03c54b76b4cbc8b31256dc3f18c417a6876 (patch) | |
tree | 6c7f793b4bbc2f063e289230e1527cd45245b908 /arch/loongarch/Kconfig.debug | |
parent | 4f55aa85a8746e5e255c46c98c031e143605e2a0 (diff) | |
parent | fea1c949f6ca5059e12de00d0483645debc5b206 (diff) | |
download | linux-1e3cd03c54b76b4cbc8b31256dc3f18c417a6876.tar.gz |
Merge tag 'loongarch-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
Pull LoongArch updates from Huacai Chen:
- Add objtool support for LoongArch
- Add ORC stack unwinder support for LoongArch
- Add kernel livepatching support for LoongArch
- Select ARCH_HAS_CURRENT_STACK_POINTER in Kconfig
- Select HAVE_ARCH_USERFAULTFD_MINOR in Kconfig
- Some bug fixes and other small changes
* tag 'loongarch-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
LoongArch/crypto: Clean up useless assignment operations
LoongArch: Define the __io_aw() hook as mmiowb()
LoongArch: Remove superfluous flush_dcache_page() definition
LoongArch: Move {dmw,tlb}_virt_to_page() definition to page.h
LoongArch: Change __my_cpu_offset definition to avoid mis-optimization
LoongArch: Select HAVE_ARCH_USERFAULTFD_MINOR in Kconfig
LoongArch: Select ARCH_HAS_CURRENT_STACK_POINTER in Kconfig
LoongArch: Add kernel livepatching support
LoongArch: Add ORC stack unwinder support
objtool: Check local label in read_unwind_hints()
objtool: Check local label in add_dead_ends()
objtool/LoongArch: Enable orc to be built
objtool/x86: Separate arch-specific and generic parts
objtool/LoongArch: Implement instruction decoder
objtool/LoongArch: Enable objtool to be built
Diffstat (limited to 'arch/loongarch/Kconfig.debug')
-rw-r--r-- | arch/loongarch/Kconfig.debug | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/loongarch/Kconfig.debug b/arch/loongarch/Kconfig.debug index 8d36aab530083b..98d60630c3d4b4 100644 --- a/arch/loongarch/Kconfig.debug +++ b/arch/loongarch/Kconfig.debug @@ -26,4 +26,15 @@ config UNWINDER_PROLOGUE Some of the addresses it reports may be incorrect (but better than the Guess unwinder). +config UNWINDER_ORC + bool "ORC unwinder" + select OBJTOOL + help + This option enables the ORC (Oops Rewind Capability) unwinder for + unwinding kernel stack traces. It uses a custom data format which is + a simplified version of the DWARF Call Frame Information standard. + + Enabling this option will increase the kernel's runtime memory usage + by roughly 2-4MB, depending on your kernel config. + endchoice |