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linux-user: Fix Stack Pointer Bug in PPC setup_rt_frame

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The code that sets the stack frame back pointer is incorrect for
the setup_rt_frame() code; qemu will abort (SIGSEGV) in some
environments.  The setup_frame code  was fixed in commit
beb526b12134a6b6744125deec5a7fe24a8f92e3 but the setup_rt_frame
code was not.

Make the setup_rt_frame code consistent with the setup_frame
code.

Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Tom Musta 2014-06-30 08:13:36 -05:00 committed by Alexander Graf
parent 2e14072f9e
commit fbdc200ac2
1 changed files with 1 additions and 1 deletions
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2
linux-user/signal.c
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@ -4751,7 +4751,7 @@ static void setup_rt_frame(int sig, struct target_sigaction *ka,
/* Create a stack frame for the caller of the handler. */
newsp = rt_sf_addr - (SIGNAL_FRAMESIZE + 16);
__put_user(env->gpr[1], (target_ulong *)(uintptr_t) newsp);
err |= put_user(env->gpr[1], newsp, target_ulong);
if (err)
goto sigsegv;