linux-user: Save the correct resume address for MIPS signal handling
The current ISA mode needs to be saved in bit 0 of the resume address.
If the current instruction happens to be in a branch delay slot, then
the address of the preceding jump instruction should be stored instead.
exception_resume_pc already does both of these tasks, so it is
made available and reused.
MIPS_HFLAG_BMASK in hflags is cleared, otherwise QEMU may treat the
first instruction of the signal handler as a delay slot instruction.
Signed-off-by: Kwok Cheung Yeung <kcy@codesourcery.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
diff --git a/target-mips/cpu.h b/target-mips/cpu.h
index cedf03d..6e761e0 100644
--- a/target-mips/cpu.h
+++ b/target-mips/cpu.h
@@ -668,6 +668,7 @@
hwaddr cpu_mips_translate_address (CPUMIPSState *env, target_ulong address,
int rw);
#endif
+target_ulong exception_resume_pc (CPUMIPSState *env);
static inline void cpu_get_tb_cpu_state(CPUMIPSState *env, target_ulong *pc,
target_ulong *cs_base, int *flags)
