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Merge pull request #1466 from LeandroLP23/fix/kernel-download0-at-start 

fix(kernel): create /download0 at start-up when the title declares download data
This commit is contained in:
Adrià 2026-10-10 01:27:57 +02:00 committed by GitHub
parent 8c6780d606 9bae5b0879
commit bb1a726e6e
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GPG Key ID: B5690EEEBB952194
3 changed files with 61 additions and 0 deletions
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12
core/libs/prx/libkernel/AppMetadata/src/AppMetadata.cpp
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@ -42,6 +42,18 @@ void ensureTitleLoaded() {
g_titleLoaded = true;
}
const bool g_downloadDataMounted = [] {
try {
const auto run = std::filesystem::current_path();
const auto paramJson = run / "app0" / "sce_sys" / "param.json";
if (!std::filesystem::exists(paramJson) || parseParamJson(paramJson).downloadDataSizeMiB == 0) return false;
std::filesystem::create_directories(run / "download0");
return true;
} catch (const std::exception&) {
return false;
}
}();
void ensureIconLoaded() {
if (g_iconAttempted) return;
g_iconAttempted = true;

23
core/libs/prx/libkernel/CMakeLists.txt
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@ -69,6 +69,29 @@ endif()
configure_windows_unwind(libkernel)
if(BUILD_TESTING)
add_test_executable(download_data_mount_tests ${LIBS_INCLUDE_DIR}/tests/GuestDownloadDataMount.cpp)
target_include_directories(download_data_mount_tests PRIVATE ${LIBS_INCLUDE_DIR})
target_link_libraries(download_data_mount_tests PRIVATE libkernel libc)
configure_windows_unwind(download_data_mount_tests)
foreach(downloadDataCase IN ITEMS declared:256 none:0 invalid:256)
string(REPLACE ":" ";" downloadDataCase ${downloadDataCase})
list(GET downloadDataCase 0 downloadDataName)
list(GET downloadDataCase 1 downloadDataSize)
set(downloadDataRun ${CMAKE_CURRENT_BINARY_DIR}/download_data_mount_${downloadDataName})
if(downloadDataName STREQUAL "invalid")
file(WRITE ${downloadDataRun}/app0/sce_sys/param.json "{\"downloadDataSize\":${downloadDataSize}}")
else()
file(WRITE ${downloadDataRun}/app0/sce_sys/param.json
"{\"titleId\":\"PPSA00000\",\"localizedParameters\":{\"en-US\":{\"titleName\":\"Example\"}},\"downloadDataSize\":${downloadDataSize},"
"\"userDefinedParam1\":0,\"userDefinedParam2\":0,\"userDefinedParam3\":0,\"userDefinedParam4\":0}")
endif()
add_test(NAME download_data_mount_${downloadDataName} COMMAND download_data_mount_tests ${downloadDataName}
WORKING_DIRECTORY ${downloadDataRun})
if(WIN32)
set_tests_properties(download_data_mount_${downloadDataName} PROPERTIES ENVIRONMENT_MODIFICATION
"PATH=path_list_prepend:$<TARGET_FILE_DIR:libkernel>")
endif()
endforeach()
add_test_executable(param_json_parser_tests ${LIBS_INCLUDE_DIR}/tests/ParamJsonParser.cpp)
target_include_directories(param_json_parser_tests PRIVATE ${LIBS_INCLUDE_DIR})
target_link_libraries(param_json_parser_tests PRIVATE libkernel libc)

26
core/libs/tests/GuestDownloadDataMount.cpp Normal file
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@ -0,0 +1,26 @@
#include "prx/libkernel/AppMetadata/include/AppMetadata.hpp"
#include <cstdlib>
#include <cstring>
#include <filesystem>
#include <stdexcept>
#include <string_view>
static void Require(bool value) { if (!value) std::abort(); }
int main(int argc, char** argv) {
Require(argc == 2);
const std::string_view mode = argv[1];
Require(std::filesystem::is_directory("download0") == (mode == "declared"));
if (mode == "invalid") {
bool rejected = false;
try {
GetAppTitleId_nid_postfix();
} catch (const std::runtime_error&) {
rejected = true;
}
Require(rejected);
return 0;
}
Require(std::strcmp(GetAppTitleId_nid_postfix().value, "PPSA00000") == 0);
std::filesystem::remove_all("download0");
}