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authorLinus Torvalds <torvalds@linux-foundation.org>2024-07-29 20:33:51 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2024-07-29 20:33:51 +0300
commit3894840a7a11aa06cc3b0d5a2d1b5f6878127903 (patch)
treeff80cfca0133b54914f7c1bd571383d3276a2857 /arch/arm/include/asm
parentdc1c8034e31b14a2e5e212104ec508aec44ce1b9 (diff)
parentd7ac67b94390945872713f9bb0c141bf158c83aa (diff)
downloadlinux-3894840a7a11aa06cc3b0d5a2d1b5f6878127903.tar.xz
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux
Pull ARM updates from Russell King: - ftrace: don't assume stack frames are contiguous in memory - remove unused mod_inwind_map structure - spelling fixes - allow use of LD dead code/data elimination - fix callchain_trace() return value - add support for stackleak gcc plugin - correct some reset asm function prototypes for CFI [ Missed the merge window because Russell forgot to push out ] * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux: ARM: 9408/1: mm: CFI: Fix some erroneous reset prototypes ARM: 9407/1: Add support for STACKLEAK gcc plugin ARM: 9406/1: Fix callchain_trace() return value ARM: 9404/1: arm32: enable HAVE_LD_DEAD_CODE_DATA_ELIMINATION ARM: 9403/1: Alpine: Spelling s/initialiing/initializing/ ARM: 9402/1: Kconfig: Spelling s/Cortex A-/Cortex-A/ ARM: 9400/1: Remove unused struct 'mod_unwind_map'
Diffstat (limited to 'arch/arm/include/asm')
-rw-r--r--arch/arm/include/asm/stacktrace.h7
-rw-r--r--arch/arm/include/asm/vmlinux.lds.h2
2 files changed, 8 insertions, 1 deletions
diff --git a/arch/arm/include/asm/stacktrace.h b/arch/arm/include/asm/stacktrace.h
index 360f0d2406bf..f80a85b091d6 100644
--- a/arch/arm/include/asm/stacktrace.h
+++ b/arch/arm/include/asm/stacktrace.h
@@ -26,6 +26,13 @@ struct stackframe {
#endif
};
+static inline bool on_thread_stack(void)
+{
+ unsigned long delta = current_stack_pointer ^ (unsigned long)current->stack;
+
+ return delta < THREAD_SIZE;
+}
+
static __always_inline
void arm_get_current_stackframe(struct pt_regs *regs, struct stackframe *frame)
{
diff --git a/arch/arm/include/asm/vmlinux.lds.h b/arch/arm/include/asm/vmlinux.lds.h
index 4c8632d5c432..d60f6e83a9f7 100644
--- a/arch/arm/include/asm/vmlinux.lds.h
+++ b/arch/arm/include/asm/vmlinux.lds.h
@@ -42,7 +42,7 @@
#define PROC_INFO \
. = ALIGN(4); \
__proc_info_begin = .; \
- *(.proc.info.init) \
+ KEEP(*(.proc.info.init)) \
__proc_info_end = .;
#define IDMAP_TEXT \