gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//libc/src/stdio/CMakeLists.txt",
    "//libc/src/stdio/asprintf.cpp",
    "//libc/src/stdio/baremetal/CMakeLists.txt",
    "//libc/src/stdio/baremetal/printf.cpp",
    "//libc/src/stdio/baremetal/vprintf.cpp",
    "//libc/src/stdio/generic/CMakeLists.txt",
    "//libc/src/stdio/generic/fprintf.cpp",
    "//libc/src/stdio/generic/printf.cpp",
    "//libc/src/stdio/generic/vfprintf.cpp",
    "//libc/src/stdio/generic/vprintf.cpp",
    "//libc/src/stdio/printf_core/CMakeLists.txt",
    "//libc/src/stdio/printf_core/core_structs.h",
    "//libc/src/stdio/printf_core/error_mapper.h",
    "//libc/src/stdio/printf_core/generic/CMakeLists.txt",
    "//libc/src/stdio/printf_core/generic/error_mapper.h",
    "//libc/src/stdio/printf_core/linux/CMakeLists.txt",
    "//libc/src/stdio/printf_core/linux/error_mapper.h",
    "//libc/src/stdio/printf_core/printf_main.h",
    "//libc/src/stdio/printf_core/vasprintf_internal.h",
    "//libc/src/stdio/printf_core/vfprintf_internal.h",
    "//libc/src/stdio/printf_core/write_int_converter.h",
    "//libc/src/stdio/printf_core/writer.h",
    "//libc/src/stdio/snprintf.cpp",
    "//libc/src/stdio/sprintf.cpp",
    "//libc/src/stdio/vasprintf.cpp",
    "//libc/src/stdio/vsnprintf.cpp",
    "//libc/src/stdio/vsprintf.cpp",
    "//libc/src/stdlib/CMakeLists.txt",
    "//libc/src/stdlib/strfromd.cpp",
    "//libc/src/stdlib/strfromf.cpp",
    "//libc/src/stdlib/strfroml.cpp",
    "//libc/src/time/strftime_core/strftime_main.h",
    "//libc/test/src/stdio/CMakeLists.txt",
    "//libc/test/src/stdio/fprintf_test.cpp",
    "//libc/test/src/stdio/printf_core/converter_test.cpp",
    "//libc/test/src/stdio/printf_core/writer_test.cpp",
    "//libc/test/src/stdio/snprintf_test.cpp",
    "//libc/test/src/stdio/vfprintf_test.cpp",
    "//libc/test/src/stdlib/StrfromTest.h"
  ],
  "test_targets": [
    "//clang-tools-extra/clangd/test:check-clangd",
    "//clang-tools-extra/test:check-clang-tools",
    "//clang/test:check-clang",
    "//lld/test:check-lld",
    "//llvm/test:check-llvm"
  ],
  "additional_compile_targets": []
}
running all tests due to change to blacklisted file