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-rw-r--r--linux-user/i386/signal.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/linux-user/i386/signal.c b/linux-user/i386/signal.c
index 4372621a4d..76317a3d16 100644
--- a/linux-user/i386/signal.c
+++ b/linux-user/i386/signal.c
@@ -163,9 +163,16 @@ struct sigframe {
abi_ulong pretcode;
int sig;
struct target_sigcontext sc;
- struct target_fpstate fpstate;
+ /*
+ * The actual fpstate is placed after retcode[] below, to make
+ * room for the variable-sized xsave data. The older unused fpstate
+ * has to be kept to avoid changing the offset of extramask[], which
+ * is part of the ABI.
+ */
+ struct target_fpstate fpstate_unused;
abi_ulong extramask[TARGET_NSIG_WORDS-1];
char retcode[8];
+ struct target_fpstate fpstate;
};
struct rt_sigframe {
@@ -175,8 +182,8 @@ struct rt_sigframe {
abi_ulong puc;
struct target_siginfo info;
struct target_ucontext uc;
- struct target_fpstate fpstate;
char retcode[8];
+ struct target_fpstate fpstate;
};
#else