From a9175169cc55ecff23a158dfee7d9cbb0b75d185 Mon Sep 17 00:00:00 2001 From: Peter Maydell Date: Thu, 12 May 2016 18:47:42 +0100 Subject: linux-user: Support for restarting system calls for tilegx targets Update the tilegx main loop and sigreturn code: * on TARGET_ERESTARTSYS, wind guest PC backwards to repeat syscall insn * return -TARGET_QEMU_ESIGRETURN from sigreturn rather than current R_RE * handle TARGET_QEMU_ESIGRETURN in the main loop as the indication that the main loop should not touch any guest CPU state Note that this fixes a bug where a sigreturn which happened to have an errno value in TILEGX_R_RE would incorrectly cause TILEGX_R_ERR to get set. Signed-off-by: Peter Maydell Signed-off-by: Riku Voipio --- linux-user/tilegx/target_signal.h | 1 + 1 file changed, 1 insertion(+) (limited to 'linux-user/tilegx') diff --git a/linux-user/tilegx/target_signal.h b/linux-user/tilegx/target_signal.h index b595f985cf..fcf10405c4 100644 --- a/linux-user/tilegx/target_signal.h +++ b/linux-user/tilegx/target_signal.h @@ -25,4 +25,5 @@ static inline abi_ulong get_sp_from_cpustate(CPUTLGState *state) return state->regs[TILEGX_R_SP]; } + #endif /* TARGET_SIGNAL_H */ -- cgit v1.2.3