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[PATCH v2 3/4] linux-user/sparc: Don't restore %g7 in sparc64_set_contex


From: Peter Maydell
Subject: [PATCH v2 3/4] linux-user/sparc: Don't restore %g7 in sparc64_set_context()
Date: Fri, 6 Nov 2020 15:27:37 +0000

The kernel does not restore the g7 register in sparc64_set_context();
neither should we. (We still save it in sparc64_get_context().)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 linux-user/sparc/signal.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/linux-user/sparc/signal.c b/linux-user/sparc/signal.c
index 43dcd137f51..ed32c7abd17 100644
--- a/linux-user/sparc/signal.c
+++ b/linux-user/sparc/signal.c
@@ -447,7 +447,7 @@ void sparc64_set_context(CPUSPARCState *env)
     __get_user(env->gregs[4], (&(*grp)[SPARC_MC_G4]));
     __get_user(env->gregs[5], (&(*grp)[SPARC_MC_G5]));
     __get_user(env->gregs[6], (&(*grp)[SPARC_MC_G6]));
-    __get_user(env->gregs[7], (&(*grp)[SPARC_MC_G7]));
+    /* Skip g7 as that's the thread register in userspace */
 
     /*
      * Note that unlike the kernel, we didn't need to mess with the
-- 
2.20.1




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