xref: /aosp_15_r20/external/llvm-libc/Android.bp (revision 71db0c75aadcf003ffe3238005f61d7618a3fead) 
1// https://ci.android.com/builds/latest/branches/aosp-build-tools/targets/linux/view/soong_build.html
2
3cc_defaults {
4    name: "llvmlibc_defaults",
5    defaults: [
6        // b/379681564: Bionic's dependencies all must support linux-bionic,
7        // which is not an enabled target by default.
8        "linux_bionic_supported",
9    ],
10    cppflags: [
11        // Necessary to build.
12        "-DLIBC_NAMESPACE=llvmlibc",
13    ],
14    arch: {
15        // TODO: https://github.com/llvm/llvm-project/issues/93738
16        // llvm-libc does not (yet) support --target=armv7a-linux -mthumb
17        // Build in ARM mode, but perhaps revisit this in the future.
18        arm: {
19            instruction_set: "arm",
20        },
21    },
22}
23
24cc_library_static {
25    name: "llvmlibc",
26    defaults: ["llvmlibc_defaults"],
27    visibility: [
28        "//bionic/libc",
29    ],
30    include_dirs: [
31        "external/llvm-libc",
32    ],
33    srcs: [
34        "src/stdlib/bsearch.cpp",
35        "src/string/memrchr.cpp",
36        "src/string/strlcat.cpp",
37        "src/string/strlcpy.cpp",
38    ],
39    cppflags: [
40        // Necessary for non-namespaced exports.
41        "-DLIBC_COPT_PUBLIC_PACKAGING",
42        // TODO: remove when https://github.com/llvm/llvm-project/pull/116686 is
43        // integrated.
44        "-DLLVM_LIBC_FUNCTION_ATTR=__attribute__((visibility(\"default\")))",
45    ],
46    // No C++ runtime.
47    stl: "none",
48    // No crt_begin and crt_end.
49    nocrt: true,
50    // Needs to be unset from the default value in order to avoid creating a
51    // cyclic dependency between llvm-libc and bionic's libc.
52    system_shared_libs: [],
53
54    // Bionic's libc's dependencies must have these set, or the build will fail
55    // due to missing a "ramdisk", "vendor_ramdisk", and "recovery" variants.
56    native_bridge_supported: true,
57    ramdisk_available: true,
58    recovery_available: true,
59    vendor_ramdisk_available: true,
60
61    // Bionic's dependencies must also set this.
62    apex_available: ["com.android.runtime"],
63
64    // When llvm-libc includes <stdlib.h>, use bionic's headers for these.
65    header_libs: ["libc_headers"],
66
67    // TODO(b/378117947): push these into non-arch-specific `srcs` as llvm-libc
68    // functions are rolled out.
69    arch: {
70        arm64: {
71            // These have optimized baseline and vectorized impls from
72            // arm-optimized-routines, and aren't yet heavily optimized by
73            // llvm-libc.
74            exclude_srcs: [
75                "src/string/memrchr.cpp",
76            ],
77        },
78        x86_64: {
79            srcs: [
80                "src/string/memchr.cpp",
81                "src/string/strchr.cpp",
82                "src/string/strchrnul.cpp",
83                "src/string/strnlen.cpp",
84                "src/string/strrchr.cpp",
85            ],
86        },
87    },
88}
89
90cc_test_library {
91    name: "llvmlibc_test_harness",
92    defaults: ["llvmlibc_defaults"],
93    srcs: [
94        "test/UnitTest/LibcTest.cpp",
95        "test/UnitTest/TestLogger.cpp",
96        "test/UnitTest/LibcTestMain.cpp",
97    ],
98}
99
100cc_defaults {
101    name: "llvmlibc_test_defaults",
102    defaults: ["llvmlibc_defaults"],
103    static_libs: [
104        "llvmlibc",
105        "llvmlibc_test_harness",
106    ],
107    // Do not try to link against gtest. llvm-libc has its own pseudo-gtest
108    // framework.
109    gtest: false,
110    // Needed to avoid the diagnostic:
111    // WARNING: Please add {test name} to either suite:
112    // ['device-tests', 'general-tests'] for this TEST_MAPPING file to work
113    // with TreeHugger.
114    test_suites: ["device-tests"],
115}
116
117cc_test {
118    // TODO: rename test to simply llvmlibc_tests. Needs to go through a post
119    // submit cycle before can be renamed for presubmit.
120    name: "llvmlibc_stdlib_bsearch_test",
121    defaults: ["llvmlibc_test_defaults"],
122    srcs: [
123        "test/src/stdlib/bsearch_test.cpp",
124        "test/src/string/memrchr_test.cpp",
125        "test/src/string/strlcat_test.cpp",
126        "test/src/string/strlcpy_test.cpp",
127    ],
128    arch: {
129        arm64: {
130            // Match exclusions in ':llvmlibc' for arm64.
131            exclude_srcs: [
132                "test/src/string/memrchr_test.cpp",
133            ],
134        },
135        x86_64: {
136            // TODO(b/378117947): push these into non-arch-specific `srcs` as
137            // llvm-libc functions are rolled out.
138            srcs: [
139                "test/src/string/memchr_test.cpp",
140                "test/src/string/strchr_test.cpp",
141                "test/src/string/strchrnul_test.cpp",
142                "test/src/string/strnlen_test.cpp",
143                "test/src/string/strrchr_test.cpp",
144            ],
145        },
146    },
147}
148