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Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc

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* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  [POWERPC] Ensure FULL_REGS on exec
This commit is contained in:
Linus Torvalds 2007-09-25 08:54:35 -07:00
commit a7f3941a2c
1 changed files with 7 additions and 0 deletions
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7
arch/powerpc/kernel/process.c
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@ -605,6 +605,13 @@ void start_thread(struct pt_regs *regs, unsigned long start, unsigned long sp)
regs->ccr = 0; regs->ccr = 0;
regs->gpr[1] = sp; regs->gpr[1] = sp;
/*
* We have just cleared all the nonvolatile GPRs, so make
* FULL_REGS(regs) return true. This is necessary to allow
* ptrace to examine the thread immediately after exec.
*/
regs->trap &= ~1UL;
#ifdef CONFIG_PPC32 #ifdef CONFIG_PPC32
regs->mq = 0; regs->mq = 0;
regs->nip = start; regs->nip = start;