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authorLinus Torvalds <torvalds@linux-foundation.org>2023-03-01 20:27:00 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2023-03-01 20:27:00 +0300
commita8356cdb5bd5abc74f814d76bd37900997fad35d (patch)
tree8a546eb732cad0262cd3ff514a51b7051f721278 /samples
parent64e851689e441e66e001ae063d4536602f9f74cb (diff)
parent8883bf83127d533abb415b204eabc064863ae6c9 (diff)
downloadlinux-a8356cdb5bd5abc74f814d76bd37900997fad35d.tar.xz
Merge tag 'loongarch-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
Pull LoongArch updates from Huacai Chen: - Make -mstrict-align configurable - Add kernel relocation and KASLR support - Add single kernel image implementation for kdump - Add hardware breakpoints/watchpoints support - Add kprobes/kretprobes/kprobes_on_ftrace support - Add LoongArch support for some selftests. * tag 'loongarch-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson: (23 commits) selftests/ftrace: Add LoongArch kprobe args string tests support selftests/seccomp: Add LoongArch selftesting support tools: Add LoongArch build infrastructure samples/kprobes: Add LoongArch support LoongArch: Mark some assembler symbols as non-kprobe-able LoongArch: Add kprobes on ftrace support LoongArch: Add kretprobes support LoongArch: Add kprobes support LoongArch: Simulate branch and PC* instructions LoongArch: ptrace: Add hardware single step support LoongArch: ptrace: Add function argument access API LoongArch: ptrace: Expose hardware breakpoints to debuggers LoongArch: Add hardware breakpoints/watchpoints support LoongArch: kdump: Add crashkernel=YM handling LoongArch: kdump: Add single kernel image implementation LoongArch: Add support for kernel address space layout randomization (KASLR) LoongArch: Add support for kernel relocation LoongArch: Add la_abs macro implementation LoongArch: Add JUMP_VIRT_ADDR macro implementation to avoid using la.abs LoongArch: Use la.pcrel instead of la.abs when it's trivially possible ...
Diffstat (limited to 'samples')
-rw-r--r--samples/kprobes/kprobe_example.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/samples/kprobes/kprobe_example.c b/samples/kprobes/kprobe_example.c
index fd346f58ddba..ef44c614c6d9 100644
--- a/samples/kprobes/kprobe_example.c
+++ b/samples/kprobes/kprobe_example.c
@@ -55,6 +55,10 @@ static int __kprobes handler_pre(struct kprobe *p, struct pt_regs *regs)
pr_info("<%s> p->addr, 0x%p, ip = 0x%lx, flags = 0x%lx\n",
p->symbol_name, p->addr, regs->psw.addr, regs->flags);
#endif
+#ifdef CONFIG_LOONGARCH
+ pr_info("<%s> p->addr = 0x%p, era = 0x%lx, estat = 0x%lx\n",
+ p->symbol_name, p->addr, regs->csr_era, regs->csr_estat);
+#endif
/* A dump_stack() here will give a stack backtrace */
return 0;
@@ -92,6 +96,10 @@ static void __kprobes handler_post(struct kprobe *p, struct pt_regs *regs,
pr_info("<%s> p->addr, 0x%p, flags = 0x%lx\n",
p->symbol_name, p->addr, regs->flags);
#endif
+#ifdef CONFIG_LOONGARCH
+ pr_info("<%s> p->addr = 0x%p, estat = 0x%lx\n",
+ p->symbol_name, p->addr, regs->csr_estat);
+#endif
}
static int __init kprobe_init(void)