[libc-commits] [libc] d94fe97 - [libc][bazel] add file printf targets and support
Michael Jones via libc-commits
libc-commits at lists.llvm.org
Wed Apr 26 14:30:53 PDT 2023
Author: Michael Jones
Date: 2023-04-26T14:30:48-07:00
New Revision: d94fe9728087f905dbd8fc32bc5c4a096b4d28c5
URL: https://github.com/llvm/llvm-project/commit/d94fe9728087f905dbd8fc32bc5c4a096b4d28c5
DIFF: https://github.com/llvm/llvm-project/commit/d94fe9728087f905dbd8fc32bc5c4a096b4d28c5.diff
LOG: [libc][bazel] add file printf targets and support
This patch adds targets for printf and fprintf to the bazel build.
Additionally, it adds support for the build system to specify where
files should be written for testing purposes. This was necessary to
enable the fprintf test under bazel.
Reviewed By: sivachandra
Differential Revision: https://reviews.llvm.org/D147008
Added:
libc/src/__support/c_string.h
libc/test/UnitTest/BazelFilePath.cpp
libc/test/UnitTest/CmakeFilePath.cpp
Modified:
libc/src/__support/CMakeLists.txt
libc/src/stdio/fprintf.cpp
libc/test/UnitTest/CMakeLists.txt
libc/test/UnitTest/LibcTest.h
libc/test/UnitTest/Test.h
libc/test/src/stdio/fprintf_test.cpp
utils/bazel/llvm-project-overlay/libc/BUILD.bazel
utils/bazel/llvm-project-overlay/libc/libc_build_rules.bzl
utils/bazel/llvm-project-overlay/libc/test/UnitTest/BUILD.bazel
utils/bazel/llvm-project-overlay/libc/test/src/stdio/BUILD.bazel
Removed:
################################################################################
diff --git a/libc/src/__support/CMakeLists.txt b/libc/src/__support/CMakeLists.txt
index 7f60e5df42185..469d81dccaaf9 100644
--- a/libc/src/__support/CMakeLists.txt
+++ b/libc/src/__support/CMakeLists.txt
@@ -45,6 +45,15 @@ add_header_library(
libc.src.__support.CPP.expected
)
+add_header_library(
+ c_string
+ HDRS
+ c_string.h
+ DEPENDS
+ libc.src.__support.common
+ libc.src.__support.CPP.string
+)
+
add_header_library(
ctype_utils
HDRS
diff --git a/libc/src/__support/c_string.h b/libc/src/__support/c_string.h
new file mode 100644
index 0000000000000..eaac4e7ad61d4
--- /dev/null
+++ b/libc/src/__support/c_string.h
@@ -0,0 +1,36 @@
+//===-- Implementation of a struct to hold a string in menory -------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIBC_SRC_SUPPORT_C_STRING_H
+#define LLVM_LIBC_SRC_SUPPORT_C_STRING_H
+
+#include "src/__support/CPP/string.h"
+#include "src/__support/macros/attributes.h" // for LIBC_INLINE
+
+namespace __llvm_libc {
+
+// The CString class is a companion to the cpp::string class. Its use case is as
+// a return value for a function that in C would return a char* and a flag for
+// if that char* needs to be freed.
+class CString {
+ cpp::string str;
+
+public:
+ // These constructors can be implemented iff required.
+ CString() = delete;
+ CString(const CString &) = delete;
+ CString(CString &&) = delete;
+
+ LIBC_INLINE CString(cpp::string in_str) : str(in_str) {}
+
+ LIBC_INLINE operator const char *() const { return str.c_str(); }
+};
+
+} // namespace __llvm_libc
+
+#endif // LLVM_LIBC_SRC_SUPPORT_C_STRING_H
diff --git a/libc/src/stdio/fprintf.cpp b/libc/src/stdio/fprintf.cpp
index da8fabf5ab542..900e18f72167f 100644
--- a/libc/src/stdio/fprintf.cpp
+++ b/libc/src/stdio/fprintf.cpp
@@ -8,7 +8,6 @@
#include "src/stdio/fprintf.h"
-#include "src/__support/File/file.h"
#include "src/__support/arg_list.h"
#include "src/stdio/printf_core/vfprintf_internal.h"
@@ -18,6 +17,7 @@
namespace __llvm_libc {
#ifndef LIBC_COPT_PRINTF_USE_SYSTEM_FILE
+#include "src/__support/File/file.h"
using FileT = __llvm_libc::File;
#else // defined(LIBC_COPT_PRINTF_USE_SYSTEM_FILE)
using FileT = ::FILE;
diff --git a/libc/test/UnitTest/BazelFilePath.cpp b/libc/test/UnitTest/BazelFilePath.cpp
new file mode 100644
index 0000000000000..7bee46c4029e5
--- /dev/null
+++ b/libc/test/UnitTest/BazelFilePath.cpp
@@ -0,0 +1,25 @@
+//===-- Implementation of the file path generator for bazel ---------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "LibcTest.h"
+
+#include <stdlib.h>
+
+#include "src/__support/CPP/string.h"
+#include "src/__support/c_string.h"
+
+namespace __llvm_libc::testing {
+
+CString libc_make_test_file_path_func(const char *file_name) {
+ // This is the path to the folder bazel wants the test outputs written to.
+ const char *UNDECLARED_OUTPUTS_PATH = getenv("TEST_UNDECLARED_OUTPUTS_DIR");
+
+ return cpp::string(UNDECLARED_OUTPUTS_PATH) + file_name;
+}
+
+} // namespace __llvm_libc::testing
diff --git a/libc/test/UnitTest/CMakeLists.txt b/libc/test/UnitTest/CMakeLists.txt
index 389a59c4401a2..d9057665a9c6c 100644
--- a/libc/test/UnitTest/CMakeLists.txt
+++ b/libc/test/UnitTest/CMakeLists.txt
@@ -1,6 +1,7 @@
set(libc_test_srcs_common
Test.h
LibcTest.cpp
+ CmakeFilePath.cpp
LibcTest.h
TestLogger.cpp
TestLogger.h
@@ -29,6 +30,7 @@ foreach(lib LibcUnitTest LibcHermeticTest)
target_compile_options(${lib} PRIVATE ${LIBC_HERMETIC_TEST_COMPILE_OPTIONS}
-fno-exceptions -fno-rtti)
add_dependencies(${lib}
+ libc.src.__support.c_string
libc.src.__support.CPP.string
libc.src.__support.CPP.string_view
libc.src.__support.CPP.type_traits
diff --git a/libc/test/UnitTest/CmakeFilePath.cpp b/libc/test/UnitTest/CmakeFilePath.cpp
new file mode 100644
index 0000000000000..1e89167a00275
--- /dev/null
+++ b/libc/test/UnitTest/CmakeFilePath.cpp
@@ -0,0 +1,20 @@
+//===-- Implementation of the file path generator for cmake ---------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "LibcTest.h"
+
+#include "src/__support/CPP/string.h"
+#include "src/__support/c_string.h"
+
+namespace __llvm_libc::testing {
+
+CString libc_make_test_file_path_func(const char *file_name) {
+ return cpp::string(file_name);
+}
+
+} // namespace __llvm_libc::testing
diff --git a/libc/test/UnitTest/LibcTest.h b/libc/test/UnitTest/LibcTest.h
index 73683770f2d46..c802b230700b3 100644
--- a/libc/test/UnitTest/LibcTest.h
+++ b/libc/test/UnitTest/LibcTest.h
@@ -9,14 +9,26 @@
#ifndef LLVM_LIBC_UTILS_UNITTEST_LIBCTEST_H
#define LLVM_LIBC_UTILS_UNITTEST_LIBCTEST_H
-// This file can only include headers from src/__support/CPP/ or
-// utils/testutils. No other headers should be included.
+// This is defined as a simple macro in test.h so that it exists for platforms
+// that don't use our test infrastructure. It's defined as a proper function
+// below.
+#ifdef libc_make_test_file_path
+#undef libc_make_test_file_path
+#endif // libc_make_test_file_path
+
+// This is defined as a macro here to avoid namespace issues.
+#define libc_make_test_file_path(file_name) \
+ (__llvm_libc::testing::libc_make_test_file_path_func(file_name))
+
+// This file can only include headers from src/__support/ or test/UnitTest. No
+// other headers should be included.
#include "PlatformDefs.h"
#include "src/__support/CPP/string.h"
#include "src/__support/CPP/string_view.h"
#include "src/__support/CPP/type_traits.h"
+#include "src/__support/c_string.h"
#include "test/UnitTest/ExecuteFunction.h"
#include "test/UnitTest/TestLogger.h"
@@ -259,6 +271,8 @@ template <typename... Types> struct TypeList {
// Make TypeList visible in __llvm_libc::testing.
template <typename... Types> using TypeList = internal::TypeList<Types...>;
+CString libc_make_test_file_path_func(const char *file_name);
+
} // namespace testing
} // namespace __llvm_libc
diff --git a/libc/test/UnitTest/Test.h b/libc/test/UnitTest/Test.h
index 19c4149b3ac00..7fd6f025b152f 100644
--- a/libc/test/UnitTest/Test.h
+++ b/libc/test/UnitTest/Test.h
@@ -9,6 +9,13 @@
#ifndef LLVM_LIBC_UTILS_UNITTEST_TEST_H
#define LLVM_LIBC_UTILS_UNITTEST_TEST_H
+// This macro takes a file name and returns a value implicitly castable to
+// a const char*. That const char* is the path to a file with the provided name
+// in a directory where the test is allowed to write. By default it writes
+// directly to the filename provided, but implementations are allowed to
+// redefine it as necessary.
+#define libc_make_test_file_path(file_name) (file_name)
+
#ifdef LIBC_COPT_TEST_USE_FUCHSIA
#include "FuchsiaTest.h"
#elif defined(LIBC_COPT_TEST_USE_PIGWEED)
diff --git a/libc/test/src/stdio/fprintf_test.cpp b/libc/test/src/stdio/fprintf_test.cpp
index 20b3c0faed6f7..a521bb47eb136 100644
--- a/libc/test/src/stdio/fprintf_test.cpp
+++ b/libc/test/src/stdio/fprintf_test.cpp
@@ -34,8 +34,10 @@ using ::fread;
} // namespace printf_test
TEST(LlvmLibcFPrintfTest, WriteToFile) {
- constexpr char FILENAME[] = "testdata/fprintf_output.test";
- ::FILE *file = printf_test::fopen(FILENAME, "w");
+ const char *FILENAME = "fprintf_output.test";
+ auto FILE_PATH = libc_make_test_file_path(FILENAME);
+
+ ::FILE *file = printf_test::fopen(FILE_PATH, "w");
ASSERT_FALSE(file == nullptr);
int written;
@@ -55,7 +57,7 @@ TEST(LlvmLibcFPrintfTest, WriteToFile) {
ASSERT_EQ(0, printf_test::fclose(file));
- file = printf_test::fopen(FILENAME, "r");
+ file = printf_test::fopen(FILE_PATH, "r");
ASSERT_FALSE(file == nullptr);
char data[50];
diff --git a/utils/bazel/llvm-project-overlay/libc/BUILD.bazel b/utils/bazel/llvm-project-overlay/libc/BUILD.bazel
index e156614473f7f..6e6953ef94fc4 100644
--- a/utils/bazel/llvm-project-overlay/libc/BUILD.bazel
+++ b/utils/bazel/llvm-project-overlay/libc/BUILD.bazel
@@ -20,6 +20,12 @@ package(
licenses(["notice"])
+PRINTF_COPTS = [
+ "LIBC_COPT_PRINTF_USE_SYSTEM_FILE",
+ "LIBC_COPT_PRINTF_DISABLE_INDEX_MODE",
+ "LIBC_COPT_PRINTF_DISABLE_WRITE_INT",
+]
+
# A flag to pick which `mpfr` to use for math tests.
# Usage: `-- at llvm-project//libc:mpfr=<disable|external|system>`.
# Flag documentation: https://bazel.build/extending/config
@@ -153,6 +159,14 @@ libc_support_library(
],
)
+libc_support_library(
+ name = "__support_cpp_expected",
+ hdrs = ["src/__support/CPP/expected.h"],
+ deps = [
+ ":libc_root",
+ ],
+)
+
libc_support_library(
name = "__support_cpp_functional",
hdrs = ["src/__support/CPP/functional.h"],
@@ -170,6 +184,16 @@ libc_support_library(
deps = [":libc_root"],
)
+libc_support_library(
+ name = "__support_cpp_new",
+ srcs = ["src/__support/CPP/new.cpp"],
+ hdrs = ["src/__support/CPP/new.h"],
+ deps = [
+ ":__support_common",
+ ":libc_root",
+ ],
+)
+
libc_support_library(
name = "__support_cpp_optional",
hdrs = ["src/__support/CPP/optional.h"],
@@ -244,6 +268,25 @@ libc_support_library(
],
)
+libc_support_library(
+ name = "__support_c_string",
+ hdrs = ["src/__support/c_string.h"],
+ deps = [
+ ":__support_cpp_string",
+ ":libc_root",
+ ],
+)
+
+libc_support_library(
+ name = "__support_error_or",
+ hdrs = ["src/__support/error_or.h"],
+ deps = [
+ ":__support_common",
+ ":__support_cpp_expected",
+ ":libc_root",
+ ],
+)
+
libc_support_library(
name = "__support_float_to_string",
hdrs = [
@@ -398,6 +441,20 @@ libc_support_library(
],
)
+libc_support_library(
+ name = "__support_file_file",
+ srcs = ["src/__support/File/file.cpp"],
+ hdrs = ["src/__support/File/file.h"],
+ deps = [
+ ":__support_cpp_new",
+ ":__support_cpp_span",
+ ":__support_error_or",
+ ":__support_threads_mutex",
+ ":errno",
+ ":libc_root",
+ ],
+)
+
libc_support_library(
name = "__support_named_pair",
hdrs = ["src/__support/named_pair.h"],
@@ -701,6 +758,23 @@ libc_support_library(
],
)
+libc_support_library(
+ name = "__support_threads_mutex",
+ hdrs = [
+ "src/__support/threads/mutex.h",
+ "src/__support/threads/mutex_common.h",
+ ],
+ textual_hdrs = [
+ "src/__support/threads/linux/mutex.h",
+ "src/__support/threads/linux/futex_word.h",
+ ],
+ deps = [
+ ":__support_cpp_atomic",
+ ":__support_osutil_syscall",
+ ":libc_root",
+ ],
+)
+
############################### errno targets ################################
libc_function(
@@ -2080,6 +2154,7 @@ libc_function(
libc_support_library(
name = "printf_core_structs",
hdrs = ["src/stdio/printf_core/core_structs.h"],
+ defines = PRINTF_COPTS,
deps = [
":__support_cpp_string_view",
":__support_fputil_fp_bits",
@@ -2090,6 +2165,7 @@ libc_support_library(
libc_support_library(
name = "printf_config",
hdrs = ["src/stdio/printf_core/printf_config.h"],
+ defines = PRINTF_COPTS,
deps = [
":libc_root",
],
@@ -2099,6 +2175,7 @@ libc_support_library(
name = "printf_parser",
srcs = ["src/stdio/printf_core/parser.cpp"],
hdrs = ["src/stdio/printf_core/parser.h"],
+ defines = PRINTF_COPTS,
deps = [
":__support_arg_list",
":__support_common",
@@ -2120,7 +2197,7 @@ libc_support_library(
name = "printf_mock_parser",
srcs = ["src/stdio/printf_core/parser.cpp"],
hdrs = ["src/stdio/printf_core/parser.h"],
- copts = ["-DLIBC_COPT_MOCK_ARG_LIST"],
+ defines = PRINTF_COPTS + ["LIBC_COPT_MOCK_ARG_LIST"],
deps = [
":__support_arg_list",
":__support_common",
@@ -2141,6 +2218,7 @@ libc_support_library(
name = "printf_string_writer",
srcs = ["src/stdio/printf_core/string_writer.cpp"],
hdrs = ["src/stdio/printf_core/string_writer.h"],
+ defines = PRINTF_COPTS,
deps = [
":__support_cpp_string_view",
":libc_root",
@@ -2149,10 +2227,23 @@ libc_support_library(
],
)
+libc_support_library(
+ name = "printf_file_writer",
+ hdrs = ["src/stdio/printf_core/file_writer.h"],
+ defines = PRINTF_COPTS,
+ deps = [
+ ":__support_cpp_string_view",
+ ":__support_file_file",
+ ":libc_root",
+ ":printf_core_structs",
+ ],
+)
+
libc_support_library(
name = "printf_writer",
srcs = ["src/stdio/printf_core/writer.cpp"],
hdrs = ["src/stdio/printf_core/writer.h"],
+ defines = PRINTF_COPTS,
deps = [
":__support_cpp_string_view",
":libc_root",
@@ -2175,6 +2266,7 @@ libc_support_library(
"src/stdio/printf_core/string_converter.h",
"src/stdio/printf_core/write_int_converter.h",
],
+ defines = PRINTF_COPTS,
deps = [
":__support_common",
":__support_cpp_limits",
@@ -2197,6 +2289,7 @@ libc_support_library(
name = "printf_main",
srcs = ["src/stdio/printf_core/printf_main.cpp"],
hdrs = ["src/stdio/printf_core/printf_main.h"],
+ defines = PRINTF_COPTS,
deps = [
":__support_arg_list",
":libc_root",
@@ -2211,6 +2304,7 @@ libc_function(
name = "sprintf",
srcs = ["src/stdio/sprintf.cpp"],
hdrs = ["src/stdio/sprintf.h"],
+ defines = PRINTF_COPTS,
deps = [
":__support_arg_list",
":errno",
@@ -2224,6 +2318,7 @@ libc_function(
name = "snprintf",
srcs = ["src/stdio/snprintf.cpp"],
hdrs = ["src/stdio/snprintf.h"],
+ defines = PRINTF_COPTS,
deps = [
":__support_arg_list",
":errno",
@@ -2232,3 +2327,41 @@ libc_function(
":printf_writer",
],
)
+
+libc_support_library(
+ name = "vfprintf_internal",
+ hdrs = ["src/stdio/printf_core/vfprintf_internal.h"],
+ defines = PRINTF_COPTS,
+ deps = [
+ ":__support_arg_list",
+ ":__support_file_file",
+ ":__support_macros_attributes",
+ ":printf_file_writer",
+ ":printf_main",
+ ":printf_writer",
+ ],
+)
+
+libc_function(
+ name = "printf",
+ srcs = ["src/stdio/printf.cpp"],
+ hdrs = ["src/stdio/printf.h"],
+ defines = PRINTF_COPTS,
+ deps = [
+ ":__support_arg_list",
+ ":errno",
+ ":vfprintf_internal",
+ ],
+)
+
+libc_function(
+ name = "fprintf",
+ srcs = ["src/stdio/fprintf.cpp"],
+ hdrs = ["src/stdio/fprintf.h"],
+ defines = PRINTF_COPTS,
+ deps = [
+ ":__support_arg_list",
+ ":errno",
+ ":vfprintf_internal",
+ ],
+)
diff --git a/utils/bazel/llvm-project-overlay/libc/libc_build_rules.bzl b/utils/bazel/llvm-project-overlay/libc/libc_build_rules.bzl
index b4506c33603f1..83dff3fbd56a2 100644
--- a/utils/bazel/llvm-project-overlay/libc/libc_build_rules.bzl
+++ b/utils/bazel/llvm-project-overlay/libc/libc_build_rules.bzl
@@ -23,7 +23,7 @@ def _libc_library(name, copts = None, **kwargs):
# We want all libc sources to be compiled with "hidden" visibility.
# The public symbols will be given "default" visibility explicitly.
# See src/__support/common.h for more information.
- copts.append("-fvisibility=hidden")
+ copts = copts + ["-fvisibility=hidden"]
native.cc_library(
name = name,
copts = copts,
@@ -65,11 +65,11 @@ def libc_function(
**kwargs: Other attributes relevant for a cc_library. For example, deps.
"""
deps = deps or []
- deps.append(LIBC_ROOT_TARGET)
+ # We use the explicit equals pattern here because append and += mutate the
+ # original list, where this creates a new list and stores it in deps.
+ deps = deps + [LIBC_ROOT_TARGET]
copts = copts or []
- copts.append("-O3")
- copts.append("-fno-builtin")
- copts.append("-fno-lax-vector-conversions")
+ copts = copts + ["-O3", "-fno-builtin", "-fno-lax-vector-conversions"]
# We compile the code twice, the first target is suffixed with ".__internal__" and contains the
# C++ functions in the "__llvm_libc" namespace. This allows us to test the function in the
@@ -87,9 +87,9 @@ def libc_function(
func_attrs = ["__attribute__((visibility(\"default\")))"]
if weak:
- func_attrs.append("__attribute__((weak))")
+ func_attrs = func_attrs + ["__attribute__((weak))"]
local_defines = local_defines or ["LIBC_COPT_PUBLIC_PACKAGING"]
- local_defines.append("LLVM_LIBC_FUNCTION_ATTR='%s'" % " ".join(func_attrs))
+ local_defines = local_defines + ["LLVM_LIBC_FUNCTION_ATTR='%s'" % " ".join(func_attrs)]
_libc_library(
name = name,
srcs = srcs,
diff --git a/utils/bazel/llvm-project-overlay/libc/test/UnitTest/BUILD.bazel b/utils/bazel/llvm-project-overlay/libc/test/UnitTest/BUILD.bazel
index 319f60b34f622..7ab3fe1b6b548 100644
--- a/utils/bazel/llvm-project-overlay/libc/test/UnitTest/BUILD.bazel
+++ b/utils/bazel/llvm-project-overlay/libc/test/UnitTest/BUILD.bazel
@@ -23,6 +23,7 @@ cc_library(
cc_library(
name = "LibcUnitTest",
srcs = [
+ "BazelFilePath.cpp",
"ExecuteFunctionUnix.cpp",
"LibcTest.cpp",
"LibcTestMain.cpp",
@@ -35,6 +36,7 @@ cc_library(
],
deps = [
":test_logger",
+ "//libc:__support_c_string",
"//libc:__support_cpp_bit",
"//libc:__support_cpp_bitset",
"//libc:__support_cpp_span",
diff --git a/utils/bazel/llvm-project-overlay/libc/test/src/stdio/BUILD.bazel b/utils/bazel/llvm-project-overlay/libc/test/src/stdio/BUILD.bazel
index f646079429735..07ffd21dc6737 100644
--- a/utils/bazel/llvm-project-overlay/libc/test/src/stdio/BUILD.bazel
+++ b/utils/bazel/llvm-project-overlay/libc/test/src/stdio/BUILD.bazel
@@ -31,11 +31,11 @@ libc_test(
libc_function_deps = [
],
deps = [
- "//libc:printf_string_writer",
- "//libc:printf_writer",
- "//libc:printf_core_structs",
- "//libc:__support_cpp_string_view",
- "//libc:__support_arg_list",
+ "//libc:__support_arg_list",
+ "//libc:__support_cpp_string_view",
+ "//libc:printf_core_structs",
+ "//libc:printf_string_writer",
+ "//libc:printf_writer",
],
)
@@ -45,12 +45,12 @@ libc_test(
libc_function_deps = [
],
deps = [
- "//libc:printf_converter",
- "//libc:printf_string_writer",
- "//libc:printf_writer",
- "//libc:printf_core_structs",
- "//libc:__support_cpp_string_view",
- "//libc:__support_arg_list",
+ "//libc:__support_arg_list",
+ "//libc:__support_cpp_string_view",
+ "//libc:printf_converter",
+ "//libc:printf_core_structs",
+ "//libc:printf_string_writer",
+ "//libc:printf_writer",
],
)
@@ -74,3 +74,19 @@ libc_test(
"//libc:snprintf",
],
)
+
+libc_test(
+ name = "printf_test",
+ srcs = ["printf_test.cpp"],
+ libc_function_deps = [
+ "//libc:printf",
+ ],
+)
+
+libc_test(
+ name = "fprintf_test",
+ srcs = ["fprintf_test.cpp"],
+ libc_function_deps = [
+ "//libc:fprintf",
+ ],
+)
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