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Merge tag 'loongarch-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson

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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
  ...
This commit is contained in:
Linus Torvalds
2023-03-01 09:27:00 -08:00
parent 64e851689e 8883bf8312
commit a8356cdb5b
47 changed files with 2665 additions and 130 deletions
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8
samples/kprobes/kprobe_example.c
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@@ -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)