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fusee: fix missing volatiles in memory utils

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This commit is contained in:
Kate J. Temkin 2018-04-20 19:12:06 -06:00
parent d104ff61ca
commit b5d3ce04e8
1 changed files with 10 additions and 8 deletions
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18
fusee/fusee-primary/src/utils.h
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@ -29,9 +29,8 @@ static inline uintptr_t get_physical_address(const void *addr) {
static inline uint32_t read32le(const volatile void *dword, size_t offset) {
uintptr_t addr = (uintptr_t)dword + offset;
uint32_t dst;
memcpy(&dst, (void *)addr, 4);
return dst;
volatile uint32_t *target = (uint32_t *)addr;
return *target;
}
static inline uint32_t read32be(const volatile void *dword, size_t offset) {
@ -40,9 +39,8 @@ static inline uint32_t read32be(const volatile void *dword, size_t offset) {
static inline uint64_t read64le(const volatile void *qword, size_t offset) {
uintptr_t addr = (uintptr_t)qword + offset;
uint64_t dst;
memcpy(&dst, (void *)addr, 8);
return dst;
volatile uint64_t *target = (uint64_t *)addr;
return *target;
}
static inline uint64_t read64be(const volatile void *qword, size_t offset) {
@ -50,7 +48,9 @@ static inline uint64_t read64be(const volatile void *qword, size_t offset) {
}
static inline void write32le(volatile void *dword, size_t offset, uint32_t value) {
memcpy((void *)((uintptr_t)dword + offset), &value, 4);
uintptr_t addr = (uintptr_t)dword + offset;
volatile uint32_t *target = (uint32_t *)addr;
*target = value;
}
static inline void write32be(volatile void *dword, size_t offset, uint32_t value) {
@ -58,7 +58,9 @@ static inline void write32be(volatile void *dword, size_t offset, uint32_t value
}
static inline void write64le(volatile void *qword, size_t offset, uint64_t value) {
memcpy((void *)((uintptr_t)qword + offset), &value, 8);
uintptr_t addr = (uintptr_t)qword + offset;
volatile uint64_t *target = (uint64_t *)addr;
*target = value;
}
static inline void write64be(volatile void *qword, size_t offset, uint64_t value) {