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elf: add ELF_CORE_COPY_KERNEL_REGS()

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ELF core dump is used for both user land core dump and kernel crash
dump.  Depending on architecture, register might need to be accessed
differently for userland and kernel.  Allow architectures to define
ELF_CORE_COPY_KERNEL_REGS() and use different operation for kernel
register dump.

Signed-off-by: Tejun Heo <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Tejun Heo 2009-02-09 22:17:39 +09:00 • committed by Ingo Molnar
commit 6cd61c0baa
2 changed files with 10 additions and 1 deletions
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2
kernel/kexec.c
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@ -1130,7 +1130,7 @@ void crash_save_cpu(struct pt_regs *regs, int cpu)
return;
memset(&prstatus, 0, sizeof(prstatus));
prstatus.pr_pid = current->pid;
elf_core_copy_regs(&prstatus.pr_reg, regs);
elf_core_copy_kernel_regs(&prstatus.pr_reg, regs);
buf = append_elf_note(buf, KEXEC_CORE_NOTE_NAME, NT_PRSTATUS,
&prstatus, sizeof(prstatus));
final_note(buf);