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feat(libSceLibcInternal): implement guest utime 

AI-assisted: yes. Preserves the guest 64-bit time ABI and forwards through the existing utimes path. Registers guest_utime.
This commit is contained in:
QRMOE 2026-10-09 07:14:12 +02:00 committed by Hannah Lyons
parent 9c5d67fbe2
commit 71040b6df5
2 changed files with 28 additions and 1 deletions
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12
core/libs/prx/libSceLibcInternal/CMakeLists.txt
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@ -1,9 +1,19 @@
add_library(libSceLibcInternal SHARED EXCLUDE_FROM_ALL Export.cpp)
add_library(libSceLibcInternal SHARED EXCLUDE_FROM_ALL Export.cpp FileTime.cpp)
target_include_directories(libSceLibcInternal PRIVATE ${LIBS_INCLUDE_DIR})
target_link_libraries(libSceLibcInternal PRIVATE ${CMAKE_DL_LIBS})
configure_windows_unwind(libSceLibcInternal)
if(BUILD_TESTING)
add_test_executable(guest_utime_tests ${LIBS_INCLUDE_DIR}/tests/GuestUtime.cpp)
target_include_directories(guest_utime_tests PRIVATE ${LIBS_INCLUDE_DIR})
target_link_libraries(guest_utime_tests PRIVATE libSceLibcInternal libc)
configure_windows_unwind(guest_utime_tests)
add_test(NAME guest_utime COMMAND guest_utime_tests)
set_tests_properties(guest_utime PROPERTIES TIMEOUT 20)
if(WIN32)
set_tests_properties(guest_utime PROPERTIES ENVIRONMENT_MODIFICATION
"PATH=path_list_prepend:$<TARGET_FILE_DIR:libSceLibcInternal>")
endif()
add_test_executable(guest_thread_atexit_tests ${LIBS_INCLUDE_DIR}/tests/GuestThreadAtexit.cpp)
target_include_directories(guest_thread_atexit_tests PRIVATE ${LIBS_INCLUDE_DIR})
target_link_libraries(guest_thread_atexit_tests PRIVATE libSceLibcInternal libkernel libc)

17
core/libs/prx/libSceLibcInternal/FileTime.cpp Normal file
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@ -0,0 +1,17 @@
#include "SceTypes.hpp"
#include "prx/libc/include/general/VabiMacros.hpp"
#include <cstdint>
struct LibcUtimbuf {
std::int64_t actime;
std::int64_t modtime;
};
static_assert(sizeof(LibcUtimbuf) == 16);
extern "C" int APS5_VABI utimes_nid_postfix(const char*, const KernelTimeval*);
extern "C" int APS5_VABI utime_nid_postfix(const char* path, const LibcUtimbuf* times) {
if (times == nullptr) return utimes_nid_postfix(path, nullptr);
const KernelTimeval values[2] = {{times->actime, 0}, {times->modtime, 0}};
return utimes_nid_postfix(path, values);
}