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block_of_code: rename PAGE_SIZE to DYNARMIC_PAGE_SIZE to prevent use of reserved name

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PAGE_SIZE is a kernel symbol and depending on the libc in use, it will
"leak". In this case dynarmic was using it's own PAGE_SIZE and in
combination with the Musl libc the compiler would complain it was overwriting
the kernel symbol
This commit is contained in:
Bart Ribbers 2022-08-25 20:05:22 +02:00 committed by merry
parent bf422a190a
commit e49fee0ca1
1 changed files with 5 additions and 5 deletions
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10
src/dynarmic/backend/x64/block_of_code.cpp
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@ -59,13 +59,13 @@ constexpr size_t CONSTANT_POOL_SIZE = 2 * 1024 * 1024;
class CustomXbyakAllocator : public Xbyak::Allocator {
public:
#ifndef _WIN32
static constexpr size_t PAGE_SIZE = 4096;
static constexpr size_t DYNARMIC_PAGE_SIZE = 4096;
// Can't subclass Xbyak::MmapAllocator because it is not a pure interface
// and doesn't expose its construtor
uint8_t* alloc(size_t size) override {
// Waste a page to store the size
size += PAGE_SIZE;
size += DYNARMIC_PAGE_SIZE;
# if defined(MAP_ANONYMOUS)
int mode = MAP_PRIVATE | MAP_ANONYMOUS;
@ -83,13 +83,13 @@ public:
throw Xbyak::Error(Xbyak::ERR_CANT_ALLOC);
}
std::memcpy(p, &size, sizeof(size_t));
return static_cast<uint8_t*>(p) + PAGE_SIZE;
return static_cast<uint8_t*>(p) + DYNARMIC_PAGE_SIZE;
}
void free(uint8_t* p) override {
size_t size;
std::memcpy(&size, p - PAGE_SIZE, sizeof(size_t));
munmap(p - PAGE_SIZE, size);
std::memcpy(&size, p - DYNARMIC_PAGE_SIZE, sizeof(size_t));
munmap(p - DYNARMIC_PAGE_SIZE, size);
}
#endif