mirror of
https://github.com/jart/cosmopolitan.git
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c9152b6f14
This change switches c++ exception handling from sjlj to standard dwarf. It's needed because clang for aarch64 doesn't support sjlj. It turns out that libunwind had a bare-metal configuration that made this easy to do. This change gets the new experimental cosmocc -mclang flag in a state of working so well that it can now be used to build all of llamafile and it goes 3x faster in terms of build latency, without trading away any perf. The int_fast16_t and int_fast32_t types are now always defined as 32-bit in the interest of having more abi consistency between cosmocc -mgcc and -mclang mode.
115 lines
3.3 KiB
C
115 lines
3.3 KiB
C
/*===---- cetintrin.h - CET intrinsic --------------------------------------===
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*
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* Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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* See https://llvm.org/LICENSE.txt for license information.
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* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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*
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*===-----------------------------------------------------------------------===
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*/
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#ifndef __IMMINTRIN_H
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#error "Never use <cetintrin.h> directly; include <immintrin.h> instead."
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#endif
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#ifndef __CETINTRIN_H
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#define __CETINTRIN_H
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/* Define the default attributes for the functions in this file. */
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#define __DEFAULT_FN_ATTRS \
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__attribute__((__always_inline__, __nodebug__, __target__("shstk")))
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static __inline__ void __DEFAULT_FN_ATTRS _incsspd(int __a) {
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__builtin_ia32_incsspd((unsigned int)__a);
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}
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#ifdef __x86_64__
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static __inline__ void __DEFAULT_FN_ATTRS _incsspq(unsigned long long __a) {
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__builtin_ia32_incsspq(__a);
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}
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#endif /* __x86_64__ */
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#ifdef __x86_64__
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static __inline__ void __DEFAULT_FN_ATTRS _inc_ssp(unsigned int __a) {
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__builtin_ia32_incsspq(__a);
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}
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#else /* __x86_64__ */
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static __inline__ void __DEFAULT_FN_ATTRS _inc_ssp(unsigned int __a) {
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__builtin_ia32_incsspd(__a);
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}
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#endif /* __x86_64__ */
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static __inline__ unsigned int __DEFAULT_FN_ATTRS _rdsspd(unsigned int __a) {
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return __builtin_ia32_rdsspd(__a);
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}
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static __inline__ unsigned int __DEFAULT_FN_ATTRS _rdsspd_i32(void) {
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#pragma clang diagnostic push
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#pragma clang diagnostic ignored "-Wuninitialized"
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unsigned int t;
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return __builtin_ia32_rdsspd(t);
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#pragma clang diagnostic pop
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}
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#ifdef __x86_64__
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static __inline__ unsigned long long __DEFAULT_FN_ATTRS _rdsspq(unsigned long long __a) {
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return __builtin_ia32_rdsspq(__a);
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}
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static __inline__ unsigned long long __DEFAULT_FN_ATTRS _rdsspq_i64(void) {
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#pragma clang diagnostic push
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#pragma clang diagnostic ignored "-Wuninitialized"
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unsigned long long t;
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return __builtin_ia32_rdsspq(t);
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#pragma clang diagnostic pop
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}
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#endif /* __x86_64__ */
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#ifdef __x86_64__
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static __inline__ unsigned long long __DEFAULT_FN_ATTRS _get_ssp(void) {
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return __builtin_ia32_rdsspq(0);
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}
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#else /* __x86_64__ */
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static __inline__ unsigned int __DEFAULT_FN_ATTRS _get_ssp(void) {
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return __builtin_ia32_rdsspd(0);
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}
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#endif /* __x86_64__ */
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static __inline__ void __DEFAULT_FN_ATTRS _saveprevssp(void) {
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__builtin_ia32_saveprevssp();
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}
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static __inline__ void __DEFAULT_FN_ATTRS _rstorssp(void * __p) {
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__builtin_ia32_rstorssp(__p);
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}
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static __inline__ void __DEFAULT_FN_ATTRS _wrssd(unsigned int __a, void * __p) {
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__builtin_ia32_wrssd(__a, __p);
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}
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#ifdef __x86_64__
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static __inline__ void __DEFAULT_FN_ATTRS _wrssq(unsigned long long __a, void * __p) {
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__builtin_ia32_wrssq(__a, __p);
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}
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#endif /* __x86_64__ */
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static __inline__ void __DEFAULT_FN_ATTRS _wrussd(unsigned int __a, void * __p) {
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__builtin_ia32_wrussd(__a, __p);
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}
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#ifdef __x86_64__
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static __inline__ void __DEFAULT_FN_ATTRS _wrussq(unsigned long long __a, void * __p) {
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__builtin_ia32_wrussq(__a, __p);
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}
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#endif /* __x86_64__ */
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static __inline__ void __DEFAULT_FN_ATTRS _setssbsy(void) {
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__builtin_ia32_setssbsy();
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}
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static __inline__ void __DEFAULT_FN_ATTRS _clrssbsy(void * __p) {
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__builtin_ia32_clrssbsy(__p);
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}
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#undef __DEFAULT_FN_ATTRS
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#endif /* __CETINTRIN_H */
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