[llvm-branch-commits] [compiler-rt] [ASan][Darwin] Support gapless shadow layout for iOS 27.0 (PR #217530)

[Andrew Haberlandt via llvm-branch-commits]

ndrewh wrote:

This broke solaris11-sparcv9

```
FAILED: projects/compiler-rt/lib/asan/CMakeFiles/RTAsan.sparcv9.dir/asan_shadow_setup.cpp.o
/opt/llvm/23/bin/clang++ -D_DEBUG -D_FILE_OFFSET_BITS=64 -D_GLIBCXX_ASSERTIONS -D_GLIBCXX_USE_CXX11_ABI=1 -D_LIBCPP_HARDENING_MODE=_LIBCPP_HARDENING_MODE_EXTENSIVE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/opt/llvm-buildbot/home/solaris11-sparcv9/clang-solaris11-sparcv9/stage1/projects/compiler-rt/lib/asan -I/opt/llvm-buildbot/home/solaris11-sparcv9/clang-solaris11-sparcv9/llvm/compiler-rt/lib/asan -I/opt/llvm-buildbot/home/solaris11-sparcv9/clang-solaris11-sparcv9/stage1/include -I/opt/llvm-buildbot/home/solaris11-sparcv9/clang-solaris11-sparcv9/llvm/llvm/include -I/opt/llvm-buildbot/home/solaris11-sparcv9/clang-solaris11-sparcv9/llvm/llvm/include/llvm/Support/Solaris -I/opt/llvm-buildbot/home/solaris11-sparcv9/clang-solaris11-sparcv9/llvm/compiler-rt/lib/asan/.. -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-fie
ld-initializers -pedantic -Wno-long-long -Wc++98-compat-extra-semi -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wno-pass-failed -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -Xclang -fno-pch-timestamp -Wall -Wno-unused-parameter  -O -DNDEBUG -std=c++17 -m64 -fPIC -fno-builtin -fno-exceptions -fomit-frame-pointer -funwind-tables -fno-stack-protector -fno-sanitize=safe-stack -fvisibility=hidden -fno-lto -Wthread-safety -Wthread-safety-reference -Wthread-safety-beta -O3 -gline-tables-only -Wno-gnu -Wno-variadic-macros -Wno-c99-extensions -ftrivial-auto-var-init=pattern -nostdinc++ -fno-rtti -Wno-format -MD -MT projects/compiler-rt/lib/asan/CMakeFiles/RTAsan.sparcv9.dir/asan_shadow_setup.cpp.o -MF projects/compiler-rt/lib/asan/CMakeFiles/RTAsan.sparcv9.dir/asan_shadow_setup.cpp.o.d -o projects/compiler-rt/lib/asan/CMakeFil
es/RTAsan.sparcv9.dir/asan_shadow_setup.cpp.o -c /opt/llvm-buildbot/home/solaris11-sparcv9/clang-solaris11-sparcv9/llvm/compiler-rt/lib/asan/asan_shadow_setup.cpp
/opt/llvm-buildbot/home/solaris11-sparcv9/clang-solaris11-sparcv9/llvm/compiler-rt/lib/asan/asan_shadow_setup.cpp:89:35: error: use of undeclared identifier 'kGaplessShadow'
  89 |   if (full_shadow_is_available && kGaplessShadow) {
     |                                   ^~~~~~~~~~~~~~
1 error generated.
```


... fixing

https://github.com/llvm/llvm-project/pull/217530