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Implement sceKernelGetSystemSwVersion (#3243)

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* Implement sceKernelGetSystemSwVersion

* Set the reported firmware version to that of the game executable
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kalaposfos13 2025-07-14 22:44:13 +02:00 committed by GitHub
parent 00f4eeddaf
commit b68ca43166
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2 changed files with 21 additions and 0 deletions
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15
src/core/libraries/kernel/kernel.cpp
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@ -6,6 +6,7 @@
#include "common/assert.h"
#include "common/debug.h"
#include "common/elf_info.h"
#include "common/logging/log.h"
#include "common/polyfill_thread.h"
#include "common/thread.h"
@ -243,6 +244,19 @@ s32 PS4_SYSV_ABI sceKernelSetGPO() {
return ORBIS_OK;
}
s32 PS4_SYSV_ABI sceKernelGetSystemSwVersion(SwVersionStruct* ret) {
if (ret == nullptr) {
return ORBIS_OK; // but why?
}
ASSERT(ret->struct_size == 40);
u32 fake_fw = Common::ElfInfo::Instance().RawFirmwareVer();
ret->hex_representation = fake_fw;
std::snprintf(ret->text_representation, 28, "%2x.%03x.%03x", fake_fw >> 0x18,
fake_fw >> 0xc & 0xfff, fake_fw & 0xfff); // why %2x?
LOG_INFO(Lib_Kernel, "called, returned sw version: {}", ret->text_representation);
return ORBIS_OK;
}
void RegisterKernel(Core::Loader::SymbolsResolver* sym) {
service_thread = std::jthread{KernelServiceThread};
@ -258,6 +272,7 @@ void RegisterKernel(Core::Loader::SymbolsResolver* sym) {
Libraries::Kernel::RegisterDebug(sym);
LIB_OBJ("f7uOxY9mM1U", "libkernel", 1, "libkernel", 1, 1, &g_stack_chk_guard);
LIB_FUNCTION("Mv1zUObHvXI", "libkernel", 1, "libkernel", 1, 1, sceKernelGetSystemSwVersion);
LIB_FUNCTION("PfccT7qURYE", "libkernel", 1, "libkernel", 1, 1, kernel_ioctl);
LIB_FUNCTION("JGfTMBOdUJo", "libkernel", 1, "libkernel", 1, 1, sceKernelGetFsSandboxRandomWord);
LIB_FUNCTION("6xVpy0Fdq+I", "libkernel", 1, "libkernel", 1, 1, _sigprocmask);

6
src/core/libraries/kernel/kernel.h
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@ -35,6 +35,12 @@ struct OrbisWrapperImpl<PS4_SYSV_ABI R (*)(Args...), f> {
s32* PS4_SYSV_ABI __Error();
struct SwVersionStruct {
u64 struct_size;
char text_representation[0x1c];
u32 hex_representation;
};
void RegisterKernel(Core::Loader::SymbolsResolver* sym);
} // namespace Libraries::Kernel