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Update libunwind custom frame register and deregister functions for

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FreeBSD: use the new doubly underscored names for unw_add_dynamic_fde
and unw_remove_dynamic_fde.

NOTE: this should be upstreamed...
This commit is contained in:
Dimitry Andric 2019-08-29 18:53:00 +00:00
parent b0d4288fb1
commit 302310d928
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/projects/clang900-import/; revision=351610
1 changed files with 5 additions and 7 deletions
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12
contrib/libunwind/src/UnwindLevel1-gcc-ext.c
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@ -227,7 +227,7 @@ _LIBUNWIND_EXPORT uintptr_t _Unwind_GetIPInfo(struct _Unwind_Context *context,
#if defined(_LIBUNWIND_SUPPORT_DWARF_UNWIND)
#ifdef __FreeBSD__
#if defined(__FreeBSD__)
// Based on LLVM's lib/ExecutionEngine/RuntimeDyld/RTDyldMemoryManager.cpp
// and XXX should be fixed to be alignment-safe.
@ -242,9 +242,9 @@ static void processFDE(const char *addr, bool isDeregister) {
uint32_t offset = *((const uint32_t *)p);
if (offset != 0) {
if (isDeregister)
_unw_remove_dynamic_fde((unw_word_t)(uintptr_t)addr);
__unw_remove_dynamic_fde((unw_word_t)(uintptr_t)addr);
else
_unw_add_dynamic_fde((unw_word_t)(uintptr_t)addr);
__unw_add_dynamic_fde((unw_word_t)(uintptr_t)addr);
}
addr = p + length;
}
@ -265,8 +265,7 @@ _LIBUNWIND_EXPORT void __deregister_frame(const void *addr) {
processFDE(addr, true);
}
#else
#else // defined(__FreeBSD__)
/// Called by programs with dynamic code generators that want
/// to register a dynamically generated FDE.
@ -277,7 +276,6 @@ _LIBUNWIND_EXPORT void __register_frame(const void *fde) {
__unw_add_dynamic_fde((unw_word_t)(uintptr_t)fde);
}
/// Called by programs with dynamic code generators that want
/// to unregister a dynamically generated FDE.
/// This function has existed on Mac OS X since 10.4, but
@ -287,7 +285,7 @@ _LIBUNWIND_EXPORT void __deregister_frame(const void *fde) {
__unw_remove_dynamic_fde((unw_word_t)(uintptr_t)fde);
}
#endif
#endif // defined(__FreeBSD__)
// The following register/deregister functions are gcc extensions.
// They have existed on Mac OS X, but have never worked because Mac OS X