Multithreaded core dumps.

Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

arch/mips/kernel/process.c

@@ -167,6 +167,14 @@ void dump_regs(elf_greg_t *gp, struct pt_regs *regs)
 #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));

include/asm-mips/elf.h

@@ -225,10 +225,12 @@ do {	current->thread.mflags &= ~MF_ABI_MASK;			\
 #endif /* CONFIG_64BIT */
 
 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)