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Make sure the memory barrier functions are always available, and now they are implemented on Android __ARM_ARCH_5TE__

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This commit is contained in:
Sam Lantinga
2017-02-10 11:21:15 -08:00
parent 9171f71dbe
commit 06ccb71bcd
5 changed files with 22 additions and 30 deletions
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2
Android.mk
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@@ -20,7 +20,7 @@ LOCAL_SRC_FILES := \
$(wildcard $(LOCAL_PATH)/src/audio/*.c) \ $(wildcard $(LOCAL_PATH)/src/audio/*.c) \
$(wildcard $(LOCAL_PATH)/src/audio/android/*.c) \ $(wildcard $(LOCAL_PATH)/src/audio/android/*.c) \
$(wildcard $(LOCAL_PATH)/src/audio/dummy/*.c) \ $(wildcard $(LOCAL_PATH)/src/audio/dummy/*.c) \
$(LOCAL_PATH)/src/atomic/SDL_atomic.c \ $(LOCAL_PATH)/src/atomic/SDL_atomic.c.arm \
$(LOCAL_PATH)/src/atomic/SDL_spinlock.c.arm \ $(LOCAL_PATH)/src/atomic/SDL_spinlock.c.arm \
$(wildcard $(LOCAL_PATH)/src/core/android/*.c) \ $(wildcard $(LOCAL_PATH)/src/core/android/*.c) \
$(wildcard $(LOCAL_PATH)/src/cpuinfo/*.c) \ $(wildcard $(LOCAL_PATH)/src/cpuinfo/*.c) \

9
include/SDL_atomic.h
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@@ -149,6 +149,9 @@ void _ReadWriteBarrier(void);
* For more information on these semantics, take a look at the blog post: * For more information on these semantics, take a look at the blog post:
* http://preshing.com/20120913/acquire-and-release-semantics * http://preshing.com/20120913/acquire-and-release-semantics
*/ */
extern DECLSPEC void SDLCALL SDL_MemoryBarrierReleaseFunction(void);
extern DECLSPEC void SDLCALL SDL_MemoryBarrierAcquireFunction(void);
#if defined(__GNUC__) && (defined(__powerpc__) || defined(__ppc__)) #if defined(__GNUC__) && (defined(__powerpc__) || defined(__ppc__))
#define SDL_MemoryBarrierRelease() __asm__ __volatile__ ("lwsync" : : : "memory") #define SDL_MemoryBarrierRelease() __asm__ __volatile__ ("lwsync" : : : "memory")
#define SDL_MemoryBarrierAcquire() __asm__ __volatile__ ("lwsync" : : : "memory") #define SDL_MemoryBarrierAcquire() __asm__ __volatile__ ("lwsync" : : : "memory")
@@ -156,11 +159,11 @@ void _ReadWriteBarrier(void);
#if defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) || defined(__ARM_ARCH_7EM__) || defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7S__) #if defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) || defined(__ARM_ARCH_7EM__) || defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7S__)
#define SDL_MemoryBarrierRelease() __asm__ __volatile__ ("dmb ish" : : : "memory") #define SDL_MemoryBarrierRelease() __asm__ __volatile__ ("dmb ish" : : : "memory")
#define SDL_MemoryBarrierAcquire() __asm__ __volatile__ ("dmb ish" : : : "memory") #define SDL_MemoryBarrierAcquire() __asm__ __volatile__ ("dmb ish" : : : "memory")
#elif defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6T2__) || defined(__ARM_ARCH_6Z__) || defined(__ARM_ARCH_6ZK__) #elif defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6T2__) || defined(__ARM_ARCH_6Z__) || defined(__ARM_ARCH_6ZK__) || defined(__ARM_ARCH_5TE__)
#ifdef __thumb__ #ifdef __thumb__
/* The mcr instruction isn't available in thumb mode, use real functions */ /* The mcr instruction isn't available in thumb mode, use real functions */
extern DECLSPEC void SDLCALL SDL_MemoryBarrierRelease(void); #define SDL_MemoryBarrierRelease() SDL_MemoryBarrierReleaseFunction()
extern DECLSPEC void SDLCALL SDL_MemoryBarrierAcquire(void); #define SDL_MemoryBarrierAcquire() SDL_MemoryBarrierAcquireFunction()
#else #else
#define SDL_MemoryBarrierRelease() __asm__ __volatile__ ("mcr p15, 0, %0, c7, c10, 5" : : "r"(0) : "memory") #define SDL_MemoryBarrierRelease() __asm__ __volatile__ ("mcr p15, 0, %0, c7, c10, 5" : : "r"(0) : "memory")
#define SDL_MemoryBarrierAcquire() __asm__ __volatile__ ("mcr p15, 0, %0, c7, c10, 5" : : "r"(0) : "memory") #define SDL_MemoryBarrierAcquire() __asm__ __volatile__ ("mcr p15, 0, %0, c7, c10, 5" : : "r"(0) : "memory")

25
src/atomic/SDL_atomic.c
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@@ -228,19 +228,16 @@ SDL_AtomicGetPtr(void **a)
return value; return value;
} }
#ifdef __thumb__ void
#if defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6T2__) || defined(__ARM_ARCH_6Z__) || defined(__ARM_ARCH_6ZK__) SDL_MemoryBarrierReleaseFunction(void)
__asm__( {
" .align 2\n" SDL_MemoryBarrierRelease();
" .globl _SDL_MemoryBarrierRelease\n" }
" .globl _SDL_MemoryBarrierAcquire\n"
"_SDL_MemoryBarrierRelease:\n" void
"_SDL_MemoryBarrierAcquire:\n" SDL_MemoryBarrierAcquireFunction(void)
" mov r0, #0\n" {
" mcr p15, 0, r0, c7, c10, 5\n" SDL_MemoryBarrierAcquire();
" bx lr\n" }
);
#endif
#endif
/* vi: set ts=4 sw=4 expandtab: */ /* vi: set ts=4 sw=4 expandtab: */

8
src/dynapi/SDL_dynapi_overrides.h
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@@ -27,12 +27,6 @@
#error You should not be here. #error You should not be here.
#endif #endif
/* so annoying. */
#if defined(__thumb__) && (defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6T2__) || defined(__ARM_ARCH_6Z__) || defined(__ARM_ARCH_6ZK__))
#define SDL_MemoryBarrierRelease SDL_MemoryBarrierRelease_REAL
#define SDL_MemoryBarrierAcquire SDL_MemoryBarrierAcquire_REAL
#endif
#define SDL_SetError SDL_SetError_REAL #define SDL_SetError SDL_SetError_REAL
#define SDL_Log SDL_Log_REAL #define SDL_Log SDL_Log_REAL
#define SDL_LogVerbose SDL_LogVerbose_REAL #define SDL_LogVerbose SDL_LogVerbose_REAL
@@ -627,3 +621,5 @@
#define SDL_JoystickGetAxisInitialState SDL_JoystickGetAxisInitialState_REAL #define SDL_JoystickGetAxisInitialState SDL_JoystickGetAxisInitialState_REAL
#define SDL_JoystickGetDeviceType SDL_JoystickGetDeviceType_REAL #define SDL_JoystickGetDeviceType SDL_JoystickGetDeviceType_REAL
#define SDL_JoystickGetType SDL_JoystickGetType_REAL #define SDL_JoystickGetType SDL_JoystickGetType_REAL
#define SDL_MemoryBarrierReleaseFunction SDL_MemoryBarrierReleaseFunction_REAL
#define SDL_MemoryBarrierAcquireFunction SDL_MemoryBarrierAcquireFunction_REAL

8
src/dynapi/SDL_dynapi_procs.h
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@@ -60,12 +60,6 @@ SDL_DYNAPI_PROC(SDL_RWops*,SDL_RWFromFP,(FILE *a, SDL_bool b),(a,b),return)
SDL_DYNAPI_PROC(SDL_RWops*,SDL_RWFromFP,(void *a, SDL_bool b),(a,b),return) SDL_DYNAPI_PROC(SDL_RWops*,SDL_RWFromFP,(void *a, SDL_bool b),(a,b),return)
#endif #endif
/* so annoying. */
#if defined(__thumb__) && (defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6T2__) || defined(__ARM_ARCH_6Z__) || defined(__ARM_ARCH_6ZK__))
SDL_DYNAPI_PROC(void,SDL_MemoryBarrierRelease,(void),(),)
SDL_DYNAPI_PROC(void,SDL_MemoryBarrierAcquire,(void),(),)
#endif
#ifdef __WIN32__ #ifdef __WIN32__
SDL_DYNAPI_PROC(int,SDL_RegisterApp,(char *a, Uint32 b, void *c),(a,b,c),return) SDL_DYNAPI_PROC(int,SDL_RegisterApp,(char *a, Uint32 b, void *c),(a,b,c),return)
SDL_DYNAPI_PROC(void,SDL_UnregisterApp,(void),(),) SDL_DYNAPI_PROC(void,SDL_UnregisterApp,(void),(),)
@@ -659,3 +653,5 @@ SDL_DYNAPI_PROC(char*,SDL_GameControllerMappingForIndex,(int a),(a),return)
SDL_DYNAPI_PROC(SDL_bool,SDL_JoystickGetAxisInitialState,(SDL_Joystick *a, int b, Sint16 *c),(a,b,c),return) SDL_DYNAPI_PROC(SDL_bool,SDL_JoystickGetAxisInitialState,(SDL_Joystick *a, int b, Sint16 *c),(a,b,c),return)
SDL_DYNAPI_PROC(SDL_JoystickType,SDL_JoystickGetDeviceType,(int a),(a),return) SDL_DYNAPI_PROC(SDL_JoystickType,SDL_JoystickGetDeviceType,(int a),(a),return)
SDL_DYNAPI_PROC(SDL_JoystickType,SDL_JoystickGetType,(SDL_Joystick *a),(a),return) SDL_DYNAPI_PROC(SDL_JoystickType,SDL_JoystickGetType,(SDL_Joystick *a),(a),return)
SDL_DYNAPI_PROC(void,SDL_MemoryBarrierReleaseFunction,(void),(),)
SDL_DYNAPI_PROC(void,SDL_MemoryBarrierAcquireFunction,(void),(),)