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Use execinfo.h by default for clang/apple clang on macos, #161

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This commit is contained in:
Jeremy Rifkin 2024-09-12 23:56:09 -05:00
parent f9ab949a9e
commit d09378c8e8
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2 changed files with 15 additions and 7 deletions
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10
CMakeLists.txt
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@ -116,7 +116,15 @@ if(
)
)
# Attempt to auto-config
if(UNIX)
if(APPLE AND ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang" OR "${CMAKE_CXX_COMPILER_ID}" STREQUAL "AppleClang"))
if(HAS_EXECINFO)
set(CPPTRACE_UNWIND_WITH_EXECINFO On)
message(STATUS "Cpptrace auto config: Using execinfo.h for unwinding")
else()
set(CPPTRACE_UNWIND_WITH_NOTHING On)
message(FATAL_ERROR "Cpptrace auto config: No unwinding back-end seems to be supported, stack tracing will not work. To compile anyway set CPPTRACE_UNWIND_WITH_NOTHING.")
endif()
elseif(UNIX)
if(HAS_UNWIND)
set(CPPTRACE_UNWIND_WITH_UNWIND On)
message(STATUS "Cpptrace auto config: Using libgcc unwind for unwinding")

12
README.md
View File

@ -1051,12 +1051,12 @@ Unwinding, symbol resolution, and demangling.
The library's CMake automatically configures itself for what your system supports. The ideal configuration is as
follows:
| Platform | Unwinding | Symbols | Demangling |
| -------- | ------------- | ------------------ | -------------------- |
| Linux | `_Unwind` | libdwarf | cxxabi.h |
| MacOS | `_Unwind` | libdwarf | cxxabi.h |
| Windows | `StackWalk64` | dbghelp | No demangling needed |
| MinGW | `StackWalk64` | libdwarf + dbghelp | cxxabi.h |
| Platform | Unwinding | Symbols | Demangling |
| -------- | ------------------------------------------------------- | ------------------ | -------------------- |
| Linux | `_Unwind` | libdwarf | cxxabi.h |
| MacOS | `_Unwind` for gcc, execinfo.h for clang and apple clang | libdwarf | cxxabi.h |
| Windows | `StackWalk64` | dbghelp | No demangling needed |
| MinGW | `StackWalk64` | libdwarf + dbghelp | cxxabi.h |
Support for these back-ends is the main development focus and they should work well. If you want to use a different
back-end such as addr2line, for example, you can configure the library to do so.