master

TTobias Hieta[libc++] Fix broken configuration system-libcxxabi on Apple (#110920)

ec2e1cae创建于 2024年11月19日历史提交

文件	最后提交记录	最后更新时间
cmake	[runtimes] Don't link against compiler-rt explicitly when we use -nostdlib++ (#75089) When we use the -nostdlib++ flag, we don't need to explicitly link against compiler-rt, since the compiler already links against it by default. This simplifies the flags that we need to use when building with Clang and GCC, and opens the door to further simplifications since most platforms won't need to detect whether libgcc and libgcc_s are supported anymore. Furthermore, on platforms where -nostdlib++ is used, this patch prevents manually linking compiler-rt *before* other system libraries. For example, Apple platforms have several compiler-rt symbols defined in libSystem.dylib. If we manually link against compiler-rt, we end up overriding the default link order preferred by the compiler and potentially using the symbols from the clang-provided libclang_rt.a library instead of the system provided one. Note that we don't touch how libunwind links against compiler-rt when it builds the .so/.a because libunwind currently doesn't use -nodefaultlibs and we want to avoid rocking the boat too much. rdar://119506163	2 年前
fuzz	add cxa_demangle_fuzzer Summary: All easy-to-find bugs in cxa_demangle where fixed now (https://bugs.chromium.org/p/chromium/issues/detail?id=606626) except for one (https://llvm.org/bugs/show_bug.cgi?id=31031). Now I'd like to properly integrate this fuzzer with the source tree and then run the fuzzer continuously on https://github.com/google/oss-fuzz Reviewers: compnerd, mclow.lists, mehdi_amini Subscribers: cfe-commits, mgorny Differential Revision: https://reviews.llvm.org/D28133 llvm-svn: 290650	9 年前
include	[libc++abi] Fix test failures with GCC 14 (#95759) This adds a new __cxa_call_terminate, which GCC 14 generates calls to now. Clang had __clang_call_terminate for the same use-case for a long time. It also fixes a test that is enabled now, since GCC has the __has_feature FTM now.	2 年前
lib	[libc++] Avoid re-exporting a few specific symbols from libc++abi (#109054) In 6a884a9aef39, I synchronized the export list of libc++abi to the export list of libc++. From the linker's perspective, this caused these symbols to be taken from libc++.dylib instead of libc++abi.dylib. However, that can be problematic when back-deploying. Indeed, this means that the linker will encode an undefined reference to be fullfilled by libc++.dylib, but when backdeploying against an older system, that symbol might only be available in libc++abi.dylib. Most of the symbols that started being re-exported after 6a884a9aef39 turn out to be implementation details of libc++abi, so nobody really depends on them and this back-deployment issue is inconsequential. However, we ran into issues with a few of these symbols while testing LLVM 19, which led to this patch. This slipped between the cracks and that is why the patch is coming so long after the original patch landed. In the future, a follow-up cleanup would be to stop exporting most of the _cxxabiv1_foo_type_infoE symbols from both libc++abi and libc++ since they are implementation details that nobody should be relying on. rdar://131984512 (cherry picked from commit 677e8cd6ff51e178bcb4669104763f71a2de106c)	1 年前
src	[libc++] Fix broken configuration system-libcxxabi on Apple (#110920) On Apple platforms, using system-libcxxabi as an ABI library wouldn't work because we'd try to re-export symbols from libc++abi that the system libc++abi.dylib might not have. Instead, only re-export those symbols when we're using the in-tree libc++abi. This does mean that libc++.dylib won't re-export any libc++abi symbols when building against the system libc++abi, which could be fixed in various ways. However, the best solution really depends on the intended use case, so this patch doesn't try to solve that problem. As a drive-by, also improve the diagnostic message when the user forgets to set the LIBCXX_CXX_ABI_INCLUDE_PATHS variable, which would previously lead to a confusing error. Closes #104672 (cherry picked from commit 21da4e7f51c7adfd0b1c5defc8bd0d16ea1ce759)	1 年前
test	[NFC][libc++][libc++abi][libunwind][test] Fix/unify AIX triples used in LIT tests (#101196) This patch fixes/unifies AIX target triples used in libc++, libc++abi, and libunwind LIT tests. (cherry picked from commit 2d3655037ccfa276cb0949c2ce0cff56985f6637)	1 年前
www	Remove references to old mailing lists that have moved to discourse. Replace with links to discourse. Reviewed By: #libc_abi, ldionne Differential Revision: https://reviews.llvm.org/D129675	3 年前
.clang-format	[libcxx] Remove extraneous '---' lines in .clang-format files	4 年前
.gitignore	.gitignore: ignore vim swap files llvm-svn: 254692	10 年前
CMakeLists.txt	[libc++abi] Use target_compile_options to pass LIBCXXABI_ADDITIONAL_COMPILE_FLAGS (#96112) We use target_compile_options to pass the libc++ variant of this flag, so we should be consistent for libc++abi. This is actually not only a matter of consistency: target_compile_options handles duplicate CMake options in a certain way (it removes duplicates but has an escape hatch using the "SHELL:" prefix), and it is important for both libc++ and libc++abi options to be handled in the same way.	2 年前
CREDITS.TXT	Try again, this time with the correct address llvm-svn: 321569	8 年前
LICENSE.TXT	Fix typos throughout the license files that somehow I and my reviewers all missed! Thanks to Alex Bradbury for pointing this out, and the fact that I never added the intended legacy anchor to the developer policy. Add that anchor too. With hope, this will cause the links to all resolve successfully. llvm-svn: 351731	7 年前