motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-07 17:53:56 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

accel/tcg: Un-inline retaddr helpers to 'user-retaddr.h'

Browse source 
set_helper_retaddr() is only used in accel/tcg/user-exec.c.

clear_helper_retaddr() is only used in accel/tcg/cpu-exec.c
and accel/tcg/user-exec.c.

No need to expose their definitions to all user-emulation
files including "exec/cpu_ldst.h", move them to a new
"user-retaddr.h" header (restricted to accel/tcg/).

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20231211212003.21686-19-philmd@linaro.org>
This commit is contained in:
Philippe Mathieu-Daudé 2023-12-05 22:40:15 +01:00
parent 7e17a52469
commit 3b28c27067
4 changed files with 34 additions and 26 deletions
Download patch file Download diff file Expand all files Collapse all files

28
accel/tcg/user-retaddr.h Normal file
View file

@ -0,0 +1,28 @@
#ifndef ACCEL_TCG_USER_RETADDR_H
#define ACCEL_TCG_USER_RETADDR_H
#include "qemu/atomic.h"
extern __thread uintptr_t helper_retaddr;
static inline void set_helper_retaddr(uintptr_t ra)
{
helper_retaddr = ra;
/*
* Ensure that this write is visible to the SIGSEGV handler that
* may be invoked due to a subsequent invalid memory operation.
*/
signal_barrier();
}
static inline void clear_helper_retaddr(void)
{
/*
* Ensure that previous memory operations have succeeded before
* removing the data visible to the signal handler.
*/
signal_barrier();
helper_retaddr = 0;
}
#endif