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authorLinus Torvalds <torvalds@linux-foundation.org>2020-06-01 23:13:00 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2020-06-01 23:13:00 +0300
commit69fc06f70f4569c9969f99fe25bdc9a6bb537b43 (patch)
treeb676e053da23cce02675c1f77c6fb0da23603d4d /lib
parent60056060bede58c3073dccb8a5e73a6c40804aa9 (diff)
parent0decf1f8de919782b152daf9c991967a2bac54f0 (diff)
downloadlinux-69fc06f70f4569c9969f99fe25bdc9a6bb537b43.tar.xz
Merge tag 'objtool-core-2020-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull objtool updates from Ingo Molnar: "There are a lot of objtool changes in this cycle, all across the map: - Speed up objtool significantly, especially when there are large number of sections - Improve objtool's understanding of special instructions such as IRET, to reduce the number of annotations required - Implement 'noinstr' validation - Do baby steps for non-x86 objtool use - Simplify/fix retpoline decoding - Add vmlinux validation - Improve documentation - Fix various bugs and apply smaller cleanups" * tag 'objtool-core-2020-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (54 commits) objtool: Enable compilation of objtool for all architectures objtool: Move struct objtool_file into arch-independent header objtool: Exit successfully when requesting help objtool: Add check_kcov_mode() to the uaccess safelist samples/ftrace: Fix asm function ELF annotations objtool: optimize add_dead_ends for split sections objtool: use gelf_getsymshndx to handle >64k sections objtool: Allow no-op CFI ops in alternatives x86/retpoline: Fix retpoline unwind x86: Change {JMP,CALL}_NOSPEC argument x86: Simplify retpoline declaration x86/speculation: Change FILL_RETURN_BUFFER to work with objtool objtool: Add support for intra-function calls objtool: Move the IRET hack into the arch decoder objtool: Remove INSN_STACK objtool: Make handle_insn_ops() unconditional objtool: Rework allocating stack_ops on decode objtool: UNWIND_HINT_RET_OFFSET should not check registers objtool: is_fentry_call() crashes if call has no destination x86,smap: Fix smap_{save,restore}() alternatives ...
Diffstat (limited to 'lib')
-rw-r--r--lib/Kconfig.debug5
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index f3322a620674..613ee4f6e28b 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -369,6 +369,11 @@ config STACK_VALIDATION
For more information, see
tools/objtool/Documentation/stack-validation.txt.
+config VMLINUX_VALIDATION
+ bool
+ depends on STACK_VALIDATION && DEBUG_ENTRY && !PARAVIRT
+ default y
+
config DEBUG_FORCE_WEAK_PER_CPU
bool "Force weak per-cpu definitions"
depends on DEBUG_KERNEL