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WIP: Add __error, mmap workarounds

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Stefanos Kornilios Mitsis Poiitidis 2023-10-31 16:44:31 +02:00
parent 1a9e1ffc16
commit addadb2a2d
1 changed files with 50 additions and 0 deletions
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50
src/core/PS4/HLE/LibKernel.cpp
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@ -3,6 +3,7 @@
#include <Util/log.h>
#include <debug.h>
#include <windows.h>
#include <io.h>
#include "Emulator/Util/singleton.h"
#include "../Loader/Elf.h"
@ -26,6 +27,51 @@ int32_t PS4_SYSV_ABI sceKernelReleaseDirectMemory(off_t start, size_t len) {
static PS4_SYSV_ABI void stack_chk_fail() { BREAKPOINT(); }
int PS4_SYSV_ABI sceKernelMunmap(void* addr, size_t len) { BREAKPOINT(); }
static thread_local int libc_error;
PS4_SYSV_ABI int* __Error() { return &libc_error; }
#define PROT_READ 0x1
#define PROT_WRITE 0x2
int PS4_SYSV_ABI sceKernelMmap(void* addr, u64 len, int prot, int flags, int fd, off_t offset, void** res) {
DWORD flProtect;
if (prot & PROT_WRITE) {
flProtect = PAGE_READWRITE;
}
off_t end = len + offset;
HANDLE mmap_fd, h;
if (fd == -1)
mmap_fd = INVALID_HANDLE_VALUE;
else
mmap_fd = (HANDLE)_get_osfhandle(fd);
h = CreateFileMapping(mmap_fd, NULL, flProtect, 0, end, NULL);
int k = GetLastError();
if (NULL == h) return -1;
DWORD dwDesiredAccess;
if (prot & PROT_WRITE)
dwDesiredAccess = FILE_MAP_WRITE;
else
dwDesiredAccess = FILE_MAP_READ;
void* ret = MapViewOfFile(h, dwDesiredAccess, 0, offset, len);
if (ret == NULL) {
CloseHandle(h);
ret = nullptr;
}
*res = ret;
return 0;
}
PS4_SYSV_ABI void* mmap(void* addr, u64 len, int prot, int flags, int fd, u64 offset) {
void* ptr;
// posix call the difference is that there is a different behaviour when it doesn't return 0 or SCE_OK
int result = sceKernelMmap(addr, len, prot, flags, fd, offset, &ptr);
if (result != 0) {
BREAKPOINT();
}
return ptr;
}
void LibKernel_Register(SymbolsResolver* sym) {
// obj
LIB_OBJ("f7uOxY9mM1U", "libkernel", 1, "libkernel", 1, 1, &HLE::Libs::LibKernel::g_stack_chk_guard);
@ -41,6 +87,10 @@ void LibKernel_Register(SymbolsResolver* sym) {
// misc
LIB_FUNCTION("WslcK1FQcGI", "libkernel", 1, "libkernel", 1, 1, CPUManagement::sceKernelIsNeoMode);
LIB_FUNCTION("Ou3iL1abvng", "libkernel", 1, "libkernel", 1, 1, stack_chk_fail);
LIB_FUNCTION("9BcDykPmo1I", "libkernel", 1, "libkernel", 1, 1, __Error);
LIB_FUNCTION("BPE9s9vQQXo", "libkernel", 1, "libkernel", 1, 1, mmap);
Core::Libraries::LibKernel::fileSystemSymbolsRegister(sym);
Core::Libraries::LibKernel::timeSymbolsRegister(sym);