multi-threaded core dump
From: Atsushi Nemoto <hidden>
Date: 2005-03-14 06:59:03
It seems linux-mips does not produce correct register dumps in core file for multi-threaded programs. This patch tries to fix it. Could you review it? Thank you. diff -ur linux-mips/arch/mips/kernel/process.c linux/arch/mips/kernel/process.c
--- linux-mips/arch/mips/kernel/process.c 2005-03-04 10:19:33.000000000 +0900
+++ linux/arch/mips/kernel/process.c 2005-03-14 15:51:43.592837356 +0900@@ -167,6 +167,14 @@ #endif } +int dump_task_regs (struct task_struct *tsk, elf_gregset_t *regs) +{ + struct thread_info *ti = tsk->thread_info; + long ksp = (unsigned long)ti + THREAD_SIZE - 32; + dump_regs(&(*regs)[0], (struct pt_regs *) ksp - 1); + return 1; +} + int dump_task_fpu (struct task_struct *t, elf_fpregset_t *fpr) { memcpy(fpr, &t->thread.fpu, sizeof(current->thread.fpu));
diff -ur linux-mips/include/asm-mips/elf.h linux/include/asm-mips/elf.h
--- linux-mips/include/asm-mips/elf.h 2005-03-04 10:19:35.000000000 +0900
+++ linux/include/asm-mips/elf.h 2005-03-14 15:52:22.000046107 +0900@@ -225,10 +225,12 @@ #endif /* CONFIG_MIPS64 */ extern void dump_regs(elf_greg_t *, struct pt_regs *regs); +extern int dump_task_regs (struct task_struct *, elf_gregset_t *); extern int dump_task_fpu(struct task_struct *, elf_fpregset_t *); #define ELF_CORE_COPY_REGS(elf_regs, regs) \ dump_regs((elf_greg_t *)&(elf_regs), regs); +#define ELF_CORE_COPY_TASK_REGS(tsk, elf_regs) dump_task_regs(tsk, elf_regs) #define ELF_CORE_COPY_FPREGS(tsk, elf_fpregs) \ dump_task_fpu(tsk, elf_fpregs) ---
Atsushi Nemoto