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use _builtin_thread_pointer also on gcc 11-x64 and clang-14-x64

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daanx 2024-05-19 20:42:28 -07:00
parent d6ad058e44
commit b9b321d328
1 changed files with 11 additions and 6 deletions
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17
include/mimalloc/prim.h
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@ -198,7 +198,7 @@ static inline void mi_prim_tls_slot_set(size_t slot, void* value) mi_attr_noexce
tcb[slot] = value;
#elif defined(__APPLE__) && defined(__POWERPC__) // ppc, issue #781
MI_UNUSED(ofs);
pthread_setspecific(slot, value);
pthread_setspecific(slot, value);
#endif
}
@ -208,13 +208,18 @@ static inline void mi_prim_tls_slot_set(size_t slot, void* value) mi_attr_noexce
// but unfortunately, it seems we cannot test for this reliably at this time (see issue #883)
// Nevertheless, it seems needed on older graviton platforms (see issue #851).
// For now, we only enable this for specific platforms.
#if defined(__GNUC__) && (__GNUC__ >= 7) && defined(__aarch64__) /* special case aarch64 for older gcc versions (issue #851) */ \
&& !defined(__APPLE__) /* on apple (M1) the wrong register is read (tpidr_el0 instead of tpidrro_el0) so fall back to TLS slot assembly (<https://github.com/microsoft/mimalloc/issues/343#issuecomment-763272369>)*/ \
#if !defined(__APPLE__) /* on apple (M1) the wrong register is read (tpidr_el0 instead of tpidrro_el0) so fall back to TLS slot assembly (<https://github.com/microsoft/mimalloc/issues/343#issuecomment-763272369>)*/ \
&& !defined(MI_LIBC_MUSL) \
&& (!defined(__clang_major__) || __clang_major__ >= 14) /* older clang versions emit bad code; fall back to using the TLS slot (<https://lore.kernel.org/linux-arm-kernel/202110280952.352F66D8@keescook/T/>) */
#define MI_USE_BUILTIN_THREAD_POINTER 1
#if (defined(__GNUC__) && (__GNUC__ >= 7) && defined(__aarch64__)) /* aarch64 for older gcc versions (issue #851) */ \
|| (defined(__GNUC__) && (__GNUC__ >= 11) && defined(__x86_64__)) \
|| (defined(__clang_major__) && (__clang_major__ >= 14) && (defined(__aarch64__) || defined(__x86_64__)))
#define MI_USE_BUILTIN_THREAD_POINTER 1
#endif
#endif
// defined in `init.c`; do not use these directly
extern mi_decl_thread mi_heap_t* _mi_heap_default; // default heap to allocate from
extern bool _mi_process_is_initialized; // has mi_process_init been called?
@ -239,11 +244,11 @@ static inline mi_threadid_t _mi_prim_thread_id(void) mi_attr_noexcept {
return (uintptr_t)NtCurrentTeb();
}
#elif MI_USE_BUILTIN_THREAD_POINTER
#elif MI_USE_BUILTIN_THREAD_POINTER
static inline mi_threadid_t _mi_prim_thread_id(void) mi_attr_noexcept {
// Works on most Unix based platforms with recent compilers
return (uintptr_t)__builtin_thread_pointer();
return (uintptr_t)__builtin_thread_pointer();
}
#elif defined(MI_HAS_TLS_SLOT)