Mercurial > vanilla

comparison lib/compiler-rt/D28791.diff @ 350:819d906b465d

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vanilla: create pure LLVM toolchain - dev/lld is imported - dev/llvm is built with libc++ - lib/compiler-rt is imported and used - lib/libc++ is built with libunwind/libc++abi - lib/libunwind is imported - lib/openmp is imported
author David Demelier <markand@malikania.fr>
date Thu, 28 Mar 2019 20:58:49 +0100
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349:7b000befead5 350:819d906b465d
1 Index: compiler-rt/CMakeLists.txt
2 ===================================================================
3 --- compiler-rt/CMakeLists.txt
4 +++ compiler-rt/CMakeLists.txt
5 @@ -29,6 +29,8 @@
6
7 option(COMPILER_RT_BUILD_BUILTINS "Build builtins" ON)
8 mark_as_advanced(COMPILER_RT_BUILD_BUILTINS)
9 +option(COMPILER_RT_BUILD_CRT "Build crtbegin.o/crtend.o" ON)
10 +mark_as_advanced(COMPILER_RT_BUILD_CRT)
11 option(COMPILER_RT_BUILD_SANITIZERS "Build sanitizers" ON)
12 mark_as_advanced(COMPILER_RT_BUILD_SANITIZERS)
13 option(COMPILER_RT_BUILD_XRAY "Build xray" ON)
14 Index: compiler-rt/cmake/Modules/AddCompilerRT.cmake
15 ===================================================================
16 --- compiler-rt/cmake/Modules/AddCompilerRT.cmake
17 +++ compiler-rt/cmake/Modules/AddCompilerRT.cmake
18 @@ -132,7 +132,7 @@
19 # Adds static or shared runtime for a list of architectures and operating
20 # systems and puts it in the proper directory in the build and install trees.
21 # add_compiler_rt_runtime(<name>
22 -# {STATIC|SHARED}
23 +# {OBJECT|STATIC|SHARED}
24 # ARCHS <architectures>
25 # OS <os list>
26 # SOURCES <source files>
27 @@ -144,8 +144,8 @@
28 # PARENT_TARGET <convenience parent target>
29 # ADDITIONAL_HEADERS <header files>)
30 function(add_compiler_rt_runtime name type)
31 - if(NOT type MATCHES "^(STATIC|SHARED)$")
32 - message(FATAL_ERROR "type argument must be STATIC or SHARED")
33 + if(NOT type MATCHES "^(OBJECT|STATIC|SHARED)$")
34 + message(FATAL_ERROR "type argument must be OBJECT, STATIC or SHARED")
35 return()
36 endif()
37 cmake_parse_arguments(LIB
38 @@ -204,7 +204,10 @@
39 message(FATAL_ERROR "Architecture ${arch} can't be targeted")
40 return()
41 endif()
42 - if(type STREQUAL "STATIC")
43 + if(type STREQUAL "OBJECT")
44 + set(libname "${name}-${arch}")
45 + set(output_name_${libname} ${libname}${COMPILER_RT_OS_SUFFIX})
46 + elseif(type STREQUAL "STATIC")
47 set(libname "${name}-${arch}")
48 set_output_name(output_name_${libname} ${name} ${arch})
49 else()
50 @@ -270,12 +273,34 @@
51 set(COMPONENT_OPTION COMPONENT ${libname})
52 endif()
53
54 - add_library(${libname} ${type} ${sources_${libname}})
55 - set_target_compile_flags(${libname} ${extra_cflags_${libname}})
56 - set_target_link_flags(${libname} ${extra_link_flags_${libname}})
57 - set_property(TARGET ${libname} APPEND PROPERTY
58 - COMPILE_DEFINITIONS ${LIB_DEFS})
59 - set_target_output_directories(${libname} ${output_dir_${libname}})
60 + if(type STREQUAL "OBJECT")
61 + string(TOUPPER ${CMAKE_BUILD_TYPE} config)
62 + get_property(cflags SOURCE ${sources_${libname}} PROPERTY COMPILE_FLAGS)
63 + separate_arguments(cflags)
64 + add_custom_command(
65 + OUTPUT ${output_dir_${libname}}/${libname}.o
66 + COMMAND ${CMAKE_C_COMPILER} ${sources_${libname}} ${cflags} ${extra_cflags_${libname}} -c -o ${output_dir_${libname}}/${libname}.o
67 + DEPENDS ${sources_${libname}}
68 + COMMENT "Building C object ${libname}.o")
69 + add_custom_target(${libname} DEPENDS ${output_dir_${libname}}/${libname}.o)
70 + install(FILES ${output_dir_${libname}}/${libname}.o
71 + DESTINATION ${install_dir_${libname}}
72 + ${COMPONENT_OPTION})
73 + else()
74 + add_library(${libname} ${type} ${sources_${libname}})
75 + set_target_compile_flags(${libname} ${extra_cflags_${libname}})
76 + set_target_link_flags(${libname} ${extra_link_flags_${libname}})
77 + set_property(TARGET ${libname} APPEND PROPERTY
78 + COMPILE_DEFINITIONS ${LIB_DEFS})
79 + set_target_output_directories(${libname} ${output_dir_${libname}})
80 + install(TARGETS ${libname}
81 + ARCHIVE DESTINATION ${install_dir_${libname}}
82 + ${COMPONENT_OPTION}
83 + LIBRARY DESTINATION ${install_dir_${libname}}
84 + ${COMPONENT_OPTION}
85 + RUNTIME DESTINATION ${install_dir_${libname}}
86 + ${COMPONENT_OPTION})
87 + endif()
88 set_target_properties(${libname} PROPERTIES
89 OUTPUT_NAME ${output_name_${libname}})
90 set_target_properties(${libname} PROPERTIES FOLDER "Compiler-RT Runtime")
91 @@ -299,13 +324,6 @@
92 )
93 endif()
94 endif()
95 - install(TARGETS ${libname}
96 - ARCHIVE DESTINATION ${install_dir_${libname}}
97 - ${COMPONENT_OPTION}
98 - LIBRARY DESTINATION ${install_dir_${libname}}
99 - ${COMPONENT_OPTION}
100 - RUNTIME DESTINATION ${install_dir_${libname}}
101 - ${COMPONENT_OPTION})
102
103 # We only want to generate per-library install targets if you aren't using
104 # an IDE because the extra targets get cluttered in IDEs.
105 Index: compiler-rt/cmake/config-ix.cmake
106 ===================================================================
107 --- compiler-rt/cmake/config-ix.cmake
108 +++ compiler-rt/cmake/config-ix.cmake
109 @@ -227,6 +227,7 @@
110 ${ARM32} ${ARM64} ${MIPS32} ${MIPS64} ${S390X})
111 set(ALL_ASAN_SUPPORTED_ARCH ${X86} ${X86_64} ${ARM32} ${ARM64}
112 ${MIPS32} ${MIPS64} ${PPC64} ${S390X})
113 +set(ALL_CRT_SUPPORTED_ARCH ${X86} ${X86_64} ${ARM32} ${ARM64})
114 set(ALL_DFSAN_SUPPORTED_ARCH ${X86_64} ${MIPS64} ${ARM64})
115 set(ALL_FUZZER_SUPPORTED_ARCH ${X86_64} ${ARM64})
116
117 @@ -474,6 +475,7 @@
118 SANITIZER_COMMON_SUPPORTED_ARCH)
119
120 else()
121 + filter_available_targets(CRT_SUPPORTED_ARCH ${ALL_CRT_SUPPORTED_ARCH})
122 # Architectures supported by compiler-rt libraries.
123 filter_available_targets(SANITIZER_COMMON_SUPPORTED_ARCH
124 ${ALL_SANITIZER_COMMON_SUPPORTED_ARCH})
125 @@ -563,6 +565,12 @@
126
127 # TODO: Add builtins support.
128
129 +if (CRT_SUPPORTED_ARCH AND OS_NAME MATCHES "Linux")
130 + set(COMPILER_RT_HAS_CRT TRUE)
131 +else()
132 + set(COMPILER_RT_HAS_CRT FALSE)
133 +endif()
134 +
135 if (COMPILER_RT_HAS_SANITIZER_COMMON AND DFSAN_SUPPORTED_ARCH AND
136 OS_NAME MATCHES "Linux")
137 set(COMPILER_RT_HAS_DFSAN TRUE)
138 Index: compiler-rt/lib/CMakeLists.txt
139 ===================================================================
140 --- compiler-rt/lib/CMakeLists.txt
141 +++ compiler-rt/lib/CMakeLists.txt
142 @@ -17,6 +17,10 @@
143 add_subdirectory(builtins)
144 endif()
145
146 +if(COMPILER_RT_BUILD_CRT)
147 + add_subdirectory(crt)
148 +endif()
149 +
150 function(compiler_rt_build_runtime runtime)
151 string(TOUPPER ${runtime} runtime_uppercase)
152 if(COMPILER_RT_HAS_${runtime_uppercase})
153 Index: compiler-rt/lib/crt/CMakeLists.txt
154 ===================================================================
155 --- /dev/null
156 +++ compiler-rt/lib/crt/CMakeLists.txt
157 @@ -0,0 +1,102 @@
158 +add_compiler_rt_component(crt)
159 +
160 +function(check_cxx_section_exists section output)
161 + cmake_parse_arguments(ARG "" "" "SOURCE;FLAGS" ${ARGN})
162 + if(NOT ARG_SOURCE)
163 + set(ARG_SOURCE "int main() { return 0; }\n")
164 + endif()
165 +
166 + string(RANDOM TARGET_NAME)
167 + set(TARGET_NAME "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/cmTC_${TARGET_NAME}.dir")
168 + file(MAKE_DIRECTORY ${TARGET_NAME})
169 +
170 + file(WRITE "${TARGET_NAME}/CheckSectionExists.c" "${ARG_SOURCE}\n")
171 +
172 + string(REGEX MATCHALL "<[A-Za-z0-9_]*>" substitutions
173 + ${CMAKE_C_COMPILE_OBJECT})
174 +
175 + set(try_compile_flags "${ARG_FLAGS}")
176 + if(CMAKE_C_COMPILER_ID MATCHES Clang AND CMAKE_C_COMPILER_TARGET)
177 + list(APPEND try_compile_flags "-target ${CMAKE_C_COMPILER_TARGET}")
178 + endif()
179 +
180 + string(REPLACE ";" " " extra_flags "${try_compile_flags}")
181 +
182 + set(test_compile_command "${CMAKE_C_COMPILE_OBJECT}")
183 + foreach(substitution ${substitutions})
184 + if(substitution STREQUAL "<CMAKE_C_COMPILER>")
185 + string(REPLACE "<CMAKE_C_COMPILER>"
186 + "${CMAKE_C_COMPILER}" test_compile_command ${test_compile_command})
187 + elseif(substitution STREQUAL "<OBJECT>")
188 + string(REPLACE "<OBJECT>" "${TARGET_NAME}/CheckSectionExists.o"
189 + test_compile_command ${test_compile_command})
190 + elseif(substitution STREQUAL "<SOURCE>")
191 + string(REPLACE "<SOURCE>" "${TARGET_NAME}/CheckSectionExists.c"
192 + test_compile_command ${test_compile_command})
193 + elseif(substitution STREQUAL "<FLAGS>")
194 + string(REPLACE "<FLAGS>" "${CMAKE_C_FLAGS} ${extra_flags}"
195 + test_compile_command ${test_compile_command})
196 + else()
197 + string(REPLACE "${substitution}" "" test_compile_command
198 + ${test_compile_command})
199 + endif()
200 + endforeach()
201 +
202 + string(REPLACE " " ";" test_compile_command "${test_compile_command}")
203 +
204 + execute_process(
205 + COMMAND ${test_compile_command}
206 + RESULT_VARIABLE TEST_RESULT
207 + OUTPUT_VARIABLE TEST_OUTPUT
208 + ERROR_VARIABLE TEST_ERROR
209 + )
210 +
211 + execute_process(
212 + COMMAND ${CMAKE_OBJDUMP} -h "${TARGET_NAME}/CheckSectionExists.o"
213 + RESULT_VARIABLE CHECK_RESULT
214 + OUTPUT_VARIABLE CHECK_OUTPUT
215 + ERROR_VARIABLE CHECK_ERROR
216 + )
217 + string(FIND "${CHECK_OUTPUT}" "${section}" SECTION_FOUND)
218 +
219 + if(NOT SECTION_FOUND EQUAL -1)
220 + set(${output} TRUE PARENT_SCOPE)
221 + else()
222 + set(${output} FALSE PARENT_SCOPE)
223 + endif()
224 +
225 + file(REMOVE_RECURSE ${TARGET_NAME})
226 +endfunction()
227 +
228 +check_cxx_section_exists(".init_array" COMPILER_RT_HAS_INITFINI_ARRAY
229 + SOURCE "__attribute__((constructor)) void f() {}\nint main() { return 0; }\n")
230 +
231 +append_list_if(COMPILER_RT_HAS_INITFINI_ARRAY -DCRT_HAS_INITFINI_ARRAY CRT_CFLAGS)
232 +append_list_if(COMPILER_RT_HAS_FPIC_FLAG -fPIC CRT_CFLAGS)
233 +
234 +foreach(arch ${CRT_SUPPORTED_ARCH})
235 + add_compiler_rt_runtime(clang_rt.crtbegin
236 + OBJECT
237 + ARCHS ${arch}
238 + SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/crtbegin.c
239 + CFLAGS ${CRT_CFLAGS}
240 + PARENT_TARGET crt)
241 + add_compiler_rt_runtime(clang_rt.crtbegin_shared
242 + OBJECT
243 + ARCHS ${arch}
244 + SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/crtbegin.c
245 + CFLAGS ${CRT_CFLAGS} -DCRT_SHARED
246 + PARENT_TARGET crt)
247 + add_compiler_rt_runtime(clang_rt.crtend
248 + OBJECT
249 + ARCHS ${arch}
250 + SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/crtend.c
251 + CFLAGS ${CRT_CFLAGS}
252 + PARENT_TARGET crt)
253 + add_compiler_rt_runtime(clang_rt.crtend_shared
254 + OBJECT
255 + ARCHS ${arch}
256 + SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/crtend.c
257 + CFLAGS ${CRT_CFLAGS} -DCRT_SHARED
258 + PARENT_TARGET crt)
259 +endforeach()
260 Index: compiler-rt/lib/crt/crtbegin.c
261 ===================================================================
262 --- /dev/null
263 +++ compiler-rt/lib/crt/crtbegin.c
264 @@ -0,0 +1,108 @@
265 +/* ===-- crtbegin.c - Start of constructors and destructors ----------------===
266 + *
267 + * The LLVM Compiler Infrastructure
268 + *
269 + * This file is dual licensed under the MIT and the University of Illinois Open
270 + * Source Licenses. See LICENSE.TXT for details.
271 + *
272 + * ===----------------------------------------------------------------------===
273 + */
274 +
275 +#include <stddef.h>
276 +
277 +__attribute__((visibility("hidden")))
278 +#ifdef CRT_SHARED
279 +void *__dso_handle = &__dso_handle;
280 +#else
281 +void *__dso_handle = (void *)0;
282 +#endif
283 +
284 +static long __EH_FRAME_LIST__[]
285 + __attribute__((section(".eh_frame"), aligned(sizeof(void *)))) = {};
286 +
287 +extern void __register_frame_info(const void *, void *) __attribute__((weak));
288 +extern void *__deregister_frame_info(const void *) __attribute__((weak));
289 +
290 +#ifndef CRT_HAS_INITFINI_ARRAY
291 +typedef void (*fp)(void);
292 +
293 +static fp __CTOR_LIST__[]
294 + __attribute__((section(".ctors"), aligned(sizeof(fp)), used)) = {(fp)-1};
295 +extern fp __CTOR_LIST_END__[];
296 +#endif
297 +
298 +#ifdef CRT_SHARED
299 +extern void __cxa_finalize(void *) __attribute__((weak));
300 +#endif
301 +
302 +static void __attribute__((used)) __do_init() {
303 + static _Bool __initialized;
304 + if (__builtin_expect(__initialized, 0))
305 + return;
306 + __initialized = 1;
307 +
308 + static struct { void *p[8]; } __object;
309 + if (__register_frame_info)
310 + __register_frame_info(__EH_FRAME_LIST__, &__object);
311 +
312 +#ifndef CRT_HAS_INITFINI_ARRAY
313 + const size_t n = __CTOR_LIST_END__ - __CTOR_LIST__ - 1;
314 + for (size_t i = n; i >= 1; i--) __CTOR_LIST__[i]();
315 +#endif
316 +}
317 +
318 +#ifdef CRT_HAS_INITFINI_ARRAY
319 +__attribute__((section(".init_array"),
320 + used)) static void (*__init)(void) = __do_init;
321 +#else // CRT_HAS_INITFINI_ARRAY
322 +#if defined(__i386__) || defined(__x86_64__)
323 +asm(".pushsection .init,\"ax\",@progbits\n\t"
324 + "call " __USER_LABEL_PREFIX__ "__do_init\n\t"
325 + ".popsection");
326 +#elif defined(__arm__)
327 +asm(".pushsection .init,\"ax\",%progbits\n\t"
328 + "bl " __USER_LABEL_PREFIX__ "__do_init\n\t"
329 + ".popsection");
330 +#endif // CRT_HAS_INITFINI_ARRAY
331 +#endif
332 +
333 +#ifndef CRT_HAS_INITFINI_ARRAY
334 +static fp __DTOR_LIST__[]
335 + __attribute__((section(".dtors"), aligned(sizeof(fp)), used)) = {(fp)-1};
336 +extern fp __DTOR_LIST_END__[];
337 +#endif
338 +
339 +static void __attribute__((used)) __do_fini() {
340 + static _Bool __finalized;
341 + if (__builtin_expect(__finalized, 0))
342 + return;
343 + __finalized = 1;
344 +
345 +#ifdef CRT_SHARED
346 + if (__cxa_finalize)
347 + __cxa_finalize(__dso_handle);
348 +#endif
349 +
350 +#ifndef CRT_HAS_INITFINI_ARRAY
351 + if (__deregister_frame_info)
352 + __deregister_frame_info(__EH_FRAME_LIST__);
353 +
354 + const size_t n = __DTOR_LIST_END__ - __DTOR_LIST__ - 1;
355 + for (size_t i = 1; i < n; i++) __DTOR_LIST__[i]();
356 +#endif
357 +}
358 +
359 +#ifdef CRT_HAS_INITFINI_ARRAY
360 +__attribute__((section(".fini_array"),
361 + used)) static void (*__fini)(void) = __do_fini;
362 +#else // CRT_HAS_INITFINI_ARRAY
363 +#if defined(__i386__) || defined(__x86_64__)
364 +asm(".pushsection .fini,\"ax\",@progbits\n\t"
365 + "call " __USER_LABEL_PREFIX__ "__do_fini\n\t"
366 + ".popsection");
367 +#elif defined(__arm__)
368 +asm(".pushsection .fini,\"ax\",%progbits\n\t"
369 + "bl " __USER_LABEL_PREFIX__ "__do_fini\n\t"
370 + ".popsection");
371 +#endif
372 +#endif // CRT_HAS_INIT_FINI_ARRAY
373 Index: compiler-rt/lib/crt/crtend.c
374 ===================================================================
375 --- /dev/null
376 +++ compiler-rt/lib/crt/crtend.c
377 @@ -0,0 +1,24 @@
378 +/* ===-- crtend.c - End of constructors and destructors --------------------===
379 + *
380 + * The LLVM Compiler Infrastructure
381 + *
382 + * This file is dual licensed under the MIT and the University of Illinois Open
383 + * Source Licenses. See LICENSE.TXT for details.
384 + *
385 + * ===----------------------------------------------------------------------===
386 + */
387 +
388 +#include <stdint.h>
389 +
390 +// Put 4-byte zero which is the length field in FDE at the end as a terminator.
391 +const int32_t __EH_FRAME_LIST_END__[]
392 + __attribute__((section(".eh_frame"), aligned(sizeof(int32_t)),
393 + visibility("hidden"), used)) = {0};
394 +
395 +#ifndef CRT_HAS_INITFINI_ARRAY
396 +typedef void (*fp)(void);
397 +fp __CTOR_LIST_END__[]
398 + __attribute__((section(".ctors"), visibility("hidden"), used)) = {0};
399 +fp __DTOR_LIST_END__[]
400 + __attribute__((section(".dtors"), visibility("hidden"), used)) = {0};
401 +#endif
402 Index: compiler-rt/test/CMakeLists.txt
403 ===================================================================
404 --- compiler-rt/test/CMakeLists.txt
405 +++ compiler-rt/test/CMakeLists.txt
406 @@ -73,6 +73,9 @@
407 if(COMPILER_RT_BUILD_XRAY)
408 compiler_rt_test_runtime(xray)
409 endif()
410 + if(COMPILER_RT_HAS_CRT)
411 + add_subdirectory(crt)
412 + endif()
413 # ShadowCallStack does not yet provide a runtime with compiler-rt, the tests
414 # include their own minimal runtime
415 add_subdirectory(shadowcallstack)
416 Index: compiler-rt/test/crt/CMakeLists.txt
417 ===================================================================
418 --- /dev/null
419 +++ compiler-rt/test/crt/CMakeLists.txt
420 @@ -0,0 +1,31 @@
421 +set(CRT_LIT_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
422 +
423 +set(CRT_TESTSUITES)
424 +
425 +set(CRT_TEST_DEPS "")
426 +
427 +if(NOT COMPILER_RT_STANDALONE_BUILD AND COMPILER_RT_BUILD_CRT AND
428 + COMPILER_RT_HAS_CRT)
429 + list(APPEND CRT_TEST_DEPS crt)
430 +endif()
431 +
432 +set(CRT_TEST_ARCH ${CRT_SUPPORTED_ARCH})
433 +if (COMPILER_RT_BUILD_CRT AND COMPILER_RT_HAS_CRT)
434 + foreach(arch ${CRT_TEST_ARCH})
435 + set(CRT_TEST_TARGET_ARCH ${arch})
436 + string(TOLOWER "-${arch}-${OS_NAME}" CRT_TEST_CONFIG_SUFFIX)
437 + get_test_cc_for_arch(${arch} CRT_TEST_TARGET_CC CRT_TEST_TARGET_CFLAGS)
438 + string(TOUPPER ${arch} ARCH_UPPER_CASE)
439 + set(CONFIG_NAME ${ARCH_UPPER_CASE}${OS_NAME}Config)
440 +
441 + configure_lit_site_cfg(
442 + ${CMAKE_CURRENT_SOURCE_DIR}/lit.site.cfg.in
443 + ${CMAKE_CURRENT_BINARY_DIR}/${CONFIG_NAME}/lit.site.cfg)
444 + list(APPEND CRT_TESTSUITES ${CMAKE_CURRENT_BINARY_DIR}/${CONFIG_NAME})
445 + endforeach()
446 +endif()
447 +
448 +add_lit_testsuite(check-crt "Running the CRT tests"
449 + ${CRT_TESTSUITES}
450 + DEPENDS ${CRT_TEST_DEPS})
451 +set_target_properties(check-crt PROPERTIES FOLDER "Compiler-RT Misc")
452 Index: compiler-rt/test/crt/dso_handle.cpp
453 ===================================================================
454 --- /dev/null
455 +++ compiler-rt/test/crt/dso_handle.cpp
456 @@ -0,0 +1,33 @@
457 +// RUN: %clangxx -g -DCRT_SHARED -c %s -fPIC -o %tshared.o
458 +// RUN: %clangxx -g -c %s -fPIC -o %t.o
459 +// RUN: %clangxx -g -shared -o %t.so -nostdlib %crti %shared_crtbegin %tshared.o %libstdcxx -lc -lm -lgcc_s %shared_crtend %crtn
460 +// RUN: %clangxx -g -o %t -nostdlib %crt1 %crti %crtbegin %t.o %libstdcxx -lc -lm %libgcc %t.so %crtend %crtn
461 +// RUN: %run %t 2>&1 | FileCheck %s
462 +
463 +#include <stdio.h>
464 +
465 +// CHECK: 1
466 +// CHECK-NEXT: ~A()
467 +
468 +#ifdef CRT_SHARED
469 +bool G;
470 +void C() {
471 + printf("%d\n", G);
472 +}
473 +
474 +struct A {
475 + A() { G = true; }
476 + ~A() {
477 + printf("~A()\n");
478 + }
479 +};
480 +
481 +A a;
482 +#else
483 +void C();
484 +
485 +int main() {
486 + C();
487 + return 0;
488 +}
489 +#endif
490 Index: compiler-rt/test/crt/lit.cfg
491 ===================================================================
492 --- /dev/null
493 +++ compiler-rt/test/crt/lit.cfg
494 @@ -0,0 +1,80 @@
495 +# -*- Python -*-
496 +
497 +import os
498 +import subprocess
499 +
500 +# Setup config name.
501 +config.name = 'CRT' + config.name_suffix
502 +
503 +# Setup source root.
504 +config.test_source_root = os.path.dirname(__file__)
505 +
506 +
507 +def get_library_path(file):
508 + cmd = subprocess.Popen([config.clang.strip(),
509 + config.target_cflags.strip(),
510 + '-print-file-name=%s' % file],
511 + stdout=subprocess.PIPE,
512 + env=config.environment)
513 + if not cmd.stdout:
514 + lit_config.fatal("Couldn't find the library path for '%s'" % file)
515 + dir = cmd.stdout.read().strip()
516 + if sys.platform in ['win32'] and execute_external:
517 + # Don't pass dosish path separator to msys bash.exe.
518 + dir = dir.replace('\\', '/')
519 + # Ensure the result is an ascii string, across Python2.5+ - Python3.
520 + return str(dir.decode('ascii'))
521 +
522 +
523 +def get_libgcc_file_name():
524 + cmd = subprocess.Popen([config.clang.strip(),
525 + config.target_cflags.strip(),
526 + '-print-libgcc-file-name'],
527 + stdout=subprocess.PIPE,
528 + env=config.environment)
529 + if not cmd.stdout:
530 + lit_config.fatal("Couldn't find the library path for '%s'" % file)
531 + dir = cmd.stdout.read().strip()
532 + if sys.platform in ['win32'] and execute_external:
533 + # Don't pass dosish path separator to msys bash.exe.
534 + dir = dir.replace('\\', '/')
535 + # Ensure the result is an ascii string, across Python2.5+ - Python3.
536 + return str(dir.decode('ascii'))
537 +
538 +
539 +def build_invocation(compile_flags):
540 + return ' ' + ' '.join([config.clang] + compile_flags) + ' '
541 +
542 +
543 +# Setup substitutions.
544 +config.substitutions.append(
545 + ('%clang ', build_invocation([config.target_cflags])))
546 +config.substitutions.append(
547 + ('%clangxx ',
548 + build_invocation(config.cxx_mode_flags + [config.target_cflags])))
549 +
550 +base_lib = os.path.join(
551 + config.compiler_rt_libdir, "clang_rt.%%s-%s.o" % config.target_arch)
552 +config.substitutions.append(('%crtbegin', base_lib % "crtbegin"))
553 +config.substitutions.append(('%shared_crtbegin', base_lib % "crtbegin_shared"))
554 +config.substitutions.append(('%crtend', base_lib % "crtend"))
555 +config.substitutions.append(('%shared_crtend', base_lib % "crtend_shared"))
556 +
557 +config.substitutions.append(
558 + ('%crt1', get_library_path('crt1.o')))
559 +config.substitutions.append(
560 + ('%crti', get_library_path('crti.o')))
561 +config.substitutions.append(
562 + ('%crtn', get_library_path('crtn.o')))
563 +
564 +config.substitutions.append(
565 + ('%libgcc', get_libgcc_file_name()))
566 +
567 +config.substitutions.append(
568 + ('%libstdcxx', '-l' + config.sanitizer_cxx_lib.lstrip('lib')))
569 +
570 +# Default test suffixes.
571 +config.suffixes = ['.c', '.cc', '.cpp']
572 +
573 +if config.host_os not in ['Linux']:
574 + config.unsupported = True
575 Index: compiler-rt/test/crt/lit.site.cfg.in
576 ===================================================================
577 --- /dev/null
578 +++ compiler-rt/test/crt/lit.site.cfg.in
579 @@ -0,0 +1,14 @@
580 +@LIT_SITE_CFG_IN_HEADER@
581 +
582 +# Tool-specific config options.
583 +config.name_suffix = "@CRT_TEST_CONFIG_SUFFIX@"
584 +config.crt_lit_source_dir = "@CRT_LIT_SOURCE_DIR@"
585 +config.target_cflags = "@CRT_TEST_TARGET_CFLAGS@"
586 +config.target_arch = "@CRT_TEST_TARGET_ARCH@"
587 +config.sanitizer_cxx_lib = "@SANITIZER_TEST_CXX_LIBNAME@"
588 +
589 +# Load common config for all compiler-rt lit tests
590 +lit_config.load_config(config, "@COMPILER_RT_BINARY_DIR@/test/lit.common.configured")
591 +
592 +# Load tool-specific config that would do the real work.
593 +lit_config.load_config(config, "@CRT_LIT_SOURCE_DIR@/lit.cfg")