head 1.11; access; symbols netbsd-11-0-RC5:1.10 netbsd-11-0-RC4:1.10 netbsd-11-0-RC3:1.10 netbsd-11-0-RC2:1.10 netbsd-11-0-RC1:1.10 gcc-14-3-0:1.1.1.12 perseant-exfatfs-base-20250801:1.10 netbsd-11:1.10.0.4 netbsd-11-base:1.10 gcc-12-5-0:1.1.1.11 netbsd-10-1-RELEASE:1.9 perseant-exfatfs-base-20240630:1.10 gcc-12-4-0:1.1.1.11 perseant-exfatfs:1.10.0.2 perseant-exfatfs-base:1.10 netbsd-8-3-RELEASE:1.4 netbsd-9-4-RELEASE:1.6 netbsd-10-0-RELEASE:1.9 netbsd-10-0-RC6:1.9 netbsd-10-0-RC5:1.9 netbsd-10-0-RC4:1.9 netbsd-10-0-RC3:1.9 netbsd-10-0-RC2:1.9 netbsd-10-0-RC1:1.9 gcc-12-3-0:1.1.1.11 gcc-10-5-0:1.1.1.10 netbsd-10:1.9.0.6 netbsd-10-base:1.9 netbsd-9-3-RELEASE:1.6 gcc-10-4-0:1.1.1.10 cjep_sun2x-base1:1.9 cjep_sun2x:1.9.0.4 cjep_sun2x-base:1.9 cjep_staticlib_x-base1:1.9 netbsd-9-2-RELEASE:1.6 cjep_staticlib_x:1.9.0.2 cjep_staticlib_x-base:1.9 gcc-10-3-0:1.1.1.10 netbsd-9-1-RELEASE:1.6 gcc-9-3-0:1.1.1.9 gcc-7-5-0:1.1.1.7 phil-wifi-20200421:1.7 phil-wifi-20200411:1.7 is-mlppp:1.7.0.2 is-mlppp-base:1.7 phil-wifi-20200406:1.7 netbsd-8-2-RELEASE:1.4 gcc-8-4-0:1.1.1.8 netbsd-9-0-RELEASE:1.6 netbsd-9-0-RC2:1.6 netbsd-9-0-RC1:1.6 phil-wifi-20191119:1.7 gcc-8-3-0:1.1.1.6 netbsd-9:1.6.0.2 netbsd-9-base:1.6 phil-wifi-20190609:1.6 netbsd-8-1-RELEASE:1.4 netbsd-8-1-RC1:1.4 pgoyette-compat-merge-20190127:1.5.2.1 pgoyette-compat-20190127:1.6 gcc-7-4-0:1.1.1.5 pgoyette-compat-20190118:1.5 pgoyette-compat-1226:1.5 pgoyette-compat-1126:1.5 gcc-6-5-0:1.1.1.4 pgoyette-compat-1020:1.5 pgoyette-compat-0930:1.5 pgoyette-compat-0906:1.5 netbsd-7-2-RELEASE:1.3 pgoyette-compat-0728:1.5 netbsd-8-0-RELEASE:1.4 phil-wifi:1.5.0.4 phil-wifi-base:1.5 pgoyette-compat-0625:1.5 netbsd-8-0-RC2:1.4 pgoyette-compat-0521:1.5 pgoyette-compat-0502:1.5 pgoyette-compat-0422:1.5 netbsd-8-0-RC1:1.4 pgoyette-compat-0415:1.5 pgoyette-compat-0407:1.5 pgoyette-compat-0330:1.5 pgoyette-compat-0322:1.5 pgoyette-compat-0315:1.5 netbsd-7-1-2-RELEASE:1.3 pgoyette-compat:1.5.0.2 pgoyette-compat-base:1.5 gcc-6-4-0:1.1.1.4 netbsd-7-1-1-RELEASE:1.3 gcc-5-5-0:1.1.1.3 matt-nb8-mediatek:1.4.0.12 matt-nb8-mediatek-base:1.4 perseant-stdc-iso10646:1.4.0.10 perseant-stdc-iso10646-base:1.4 netbsd-8:1.4.0.8 netbsd-8-base:1.4 prg-localcount2-base3:1.4 prg-localcount2-base2:1.4 prg-localcount2-base1:1.4 prg-localcount2:1.4.0.6 prg-localcount2-base:1.4 pgoyette-localcount-20170426:1.4 bouyer-socketcan-base1:1.4 pgoyette-localcount-20170320:1.4 netbsd-7-1:1.3.0.10 netbsd-7-1-RELEASE:1.3 netbsd-7-1-RC2:1.3 netbsd-7-nhusb-base-20170116:1.3 bouyer-socketcan:1.4.0.4 bouyer-socketcan-base:1.4 pgoyette-localcount-20170107:1.4 netbsd-7-1-RC1:1.3 pgoyette-localcount-20161104:1.4 netbsd-7-0-2-RELEASE:1.3 localcount-20160914:1.4 netbsd-7-nhusb:1.3.0.8 netbsd-7-nhusb-base:1.3 pgoyette-localcount-20160806:1.4 pgoyette-localcount-20160726:1.4 pgoyette-localcount:1.4.0.2 pgoyette-localcount-base:1.4 gcc-5-4-0:1.1.1.3 netbsd-7-0-1-RELEASE:1.3 gcc-5-3-0:1.1.1.3 netbsd-7-0:1.3.0.6 netbsd-7-0-RELEASE:1.3 gcc-4-8-5-pre-gcc-old-import:1.3 netbsd-7-0-RC3:1.3 netbsd-7-0-RC2:1.3 post-gcc-4-8-5-merge:1.3 gcc-4-8-5:1.1.1.2 netbsd-7-0-RC1:1.3 gcc-4-8-4:1.1.1.2 gcc-4-8-20141009:1.1.1.2 netbsd-6-0-6-RELEASE:1.1.1.1 netbsd-6-1-5-RELEASE:1.1.1.1 netbsd-7:1.3.0.4 netbsd-7-base:1.3 gcc-4-8-3:1.1.1.2 yamt-pagecache-base9:1.3 yamt-pagecache-tag8:1.1.1.1.2.1 netbsd-6-1-4-RELEASE:1.1.1.1 netbsd-6-0-5-RELEASE:1.1.1.1 tls-earlyentropy:1.3.0.2 tls-earlyentropy-base:1.3 riastradh-xf86-video-intel-2-7-1-pre-2-21-15:1.3 riastradh-drm2-base3:1.3 gcc-4-8-3-pre-r208254:1.1.1.2 gcc-4-8-3-pre-r206687:1.1.1.2 imported-to-gcc-old-20140227-0107:1.2 netbsd-6-1-3-RELEASE:1.1.1.1 netbsd-6-0-4-RELEASE:1.1.1.1 netbsd-6-1-2-RELEASE:1.1.1.1 netbsd-6-0-3-RELEASE:1.1.1.1 netbsd-6-1-1-RELEASE:1.1.1.1 riastradh-drm2-base2:1.2 riastradh-drm2-base1:1.2 riastradh-drm2:1.2.0.2 riastradh-drm2-base:1.2 netbsd-6-1:1.1.1.1.0.12 netbsd-6-0-2-RELEASE:1.1.1.1 netbsd-6-1-RELEASE:1.1.1.1 netbsd-6-1-RC4:1.1.1.1 netbsd-6-1-RC3:1.1.1.1 agc-symver:1.2.0.4 agc-symver-base:1.2 netbsd-6-1-RC2:1.1.1.1 netbsd-6-1-RC1:1.1.1.1 yamt-pagecache-base8:1.2 netbsd-6-0-1-RELEASE:1.1.1.1 yamt-pagecache-base7:1.2 matt-nb6-plus-nbase:1.1.1.1 yamt-pagecache-base6:1.1.1.1 netbsd-6-0:1.1.1.1.0.10 netbsd-6-0-RELEASE:1.1.1.1 gcc-4-5-4:1.1.1.1 netbsd-6-0-RC2:1.1.1.1 tls-maxphys:1.1.1.1.0.8 tls-maxphys-base:1.3 matt-nb6-plus:1.1.1.1.0.6 matt-nb6-plus-base:1.1.1.1 netbsd-6-0-RC1:1.1.1.1 yamt-pagecache-base5:1.1.1.1 yamt-pagecache-base4:1.1.1.1 netbsd-6:1.1.1.1.0.4 netbsd-6-base:1.1.1.1 yamt-pagecache-base3:1.1.1.1 yamt-pagecache-base2:1.1.1.1 yamt-pagecache:1.1.1.1.0.2 yamt-pagecache-base:1.1.1.1 gcc-4-5-3:1.1.1.1 FSF:1.1.1; 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author tls; state Exp; branches; next ; commitid jTnpym9Qu0o4R1Nx; desc @@ 1.11 log @merge GCC 14.3.0. @ text @// -*- C++ -*- Exception handling and frame unwind runtime interface routines. // Copyright (C) 2001-2024 Free Software Foundation, Inc. // // This file is part of GCC. // // GCC is free software; you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation; either version 3, or (at your option) // any later version. // // GCC is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // Under Section 7 of GPL version 3, you are granted additional // permissions described in the GCC Runtime Library Exception, version // 3.1, as published by the Free Software Foundation. // You should have received a copy of the GNU General Public License and // a copy of the GCC Runtime Library Exception along with this program; // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see // . // This is derived from the C++ ABI for IA-64. Where we diverge // for cross-architecture compatibility are noted with "@@@@@@". #ifndef _UNWIND_CXX_H #define _UNWIND_CXX_H 1 // Level 2: C++ ABI #include #include #include #include "unwind.h" #include #include #ifdef _GLIBCXX_HAVE_SYS_SDT_H #include /* We only want to use stap probes starting with v3. Earlier versions added too much startup cost. */ #if defined (STAP_PROBE2) && _SDT_NOTE_TYPE >= 3 #define PROBE2(name, arg1, arg2) STAP_PROBE2 (libstdcxx, name, arg1, arg2) #endif #endif #ifndef PROBE2 #define PROBE2(name, arg1, arg2) #endif #pragma GCC visibility push(default) namespace __cxxabiv1 { // A primary C++ exception object consists of a header, which is a wrapper // around an unwind object header with additional C++ specific information, // followed by the exception object itself. struct __cxa_exception { // Manage the exception object itself. std::type_info *exceptionType; void (_GLIBCXX_CDTOR_CALLABI *exceptionDestructor)(void *); // The C++ standard has entertaining rules wrt calling set_terminate // and set_unexpected in the middle of the exception cleanup process. std::terminate_handler unexpectedHandler; std::terminate_handler terminateHandler; // The caught exception stack threads through here. __cxa_exception *nextException; // How many nested handlers have caught this exception. A negated // value is a signal that this object has been rethrown. int handlerCount; #ifdef __ARM_EABI_UNWINDER__ // Stack of exceptions in cleanups. __cxa_exception* nextPropagatingException; // The number of active cleanup handlers for this exception. int propagationCount; #else // Cache parsed handler data from the personality routine Phase 1 // for Phase 2 and __cxa_call_unexpected. int handlerSwitchValue; const unsigned char *actionRecord; const unsigned char *languageSpecificData; _Unwind_Ptr catchTemp; void *adjustedPtr; #endif // The generic exception header. Must be last. _Unwind_Exception unwindHeader; }; struct __cxa_refcounted_exception { // Manage this header. _Atomic_word referenceCount; // __cxa_exception must be last, and no padding can be after it. __cxa_exception exc; }; // A dependent C++ exception object consists of a wrapper around an unwind // object header with additional C++ specific information, containing a pointer // to a primary exception object. struct __cxa_dependent_exception { // The primary exception this thing depends on. void *primaryException; // Unused member to get similar layout to __cxa_exception, otherwise the // alignment requirements of _Unwind_Exception would require padding bytes // before the unwindHeader member. void (_GLIBCXX_CDTOR_CALLABI *__padding)(void *); // The C++ standard has entertaining rules wrt calling set_terminate // and set_unexpected in the middle of the exception cleanup process. std::terminate_handler unexpectedHandler; std::terminate_handler terminateHandler; // The caught exception stack threads through here. __cxa_exception *nextException; // How many nested handlers have caught this exception. A negated // value is a signal that this object has been rethrown. int handlerCount; #ifdef __ARM_EABI_UNWINDER__ // Stack of exceptions in cleanups. __cxa_exception* nextPropagatingException; // The number of active cleanup handlers for this exception. int propagationCount; #else // Cache parsed handler data from the personality routine Phase 1 // for Phase 2 and __cxa_call_unexpected. int handlerSwitchValue; const unsigned char *actionRecord; const unsigned char *languageSpecificData; _Unwind_Ptr catchTemp; void *adjustedPtr; #endif // The generic exception header. Must be last. _Unwind_Exception unwindHeader; }; // Each thread in a C++ program has access to a __cxa_eh_globals object. struct __cxa_eh_globals { __cxa_exception *caughtExceptions; unsigned int uncaughtExceptions; #ifdef __ARM_EABI_UNWINDER__ __cxa_exception* propagatingExceptions; #endif }; // @@@@@@ These are not directly specified by the IA-64 C++ ABI. // Handles re-checking the exception specification if unexpectedHandler // throws, and if bad_exception needs to be thrown. Called from the // compiler. extern "C" void __cxa_call_unexpected (void *) __attribute__((__noreturn__)); extern "C" void __cxa_call_terminate (void*) throw () __attribute__((__noreturn__)); #ifdef __ARM_EABI_UNWINDER__ // Arm EABI specified routines. typedef enum { ctm_failed = 0, ctm_succeeded = 1, ctm_succeeded_with_ptr_to_base = 2 } __cxa_type_match_result; extern "C" __cxa_type_match_result __cxa_type_match(_Unwind_Exception*, const std::type_info*, bool, void**); extern "C" bool __cxa_begin_cleanup (_Unwind_Exception*); extern "C" void __cxa_end_cleanup (void); #endif // Handles cleanup from transactional memory restart. extern "C" void __cxa_tm_cleanup (void *, void *, unsigned int) throw(); // Invokes given handler, dying appropriately if the user handler was // so inconsiderate as to return. extern void __terminate(std::terminate_handler) throw () __attribute__((__noreturn__)); extern void __unexpected(std::terminate_handler) __attribute__((__noreturn__)); // The current installed user handlers. extern std::terminate_handler __terminate_handler; extern std::terminate_handler __unexpected_handler; // These are explicitly GNU C++ specific. // Acquire the C++ exception header from the C++ object. static inline __cxa_exception * __get_exception_header_from_obj (void *ptr) { return reinterpret_cast<__cxa_exception *>(ptr) - 1; } // Acquire the C++ exception header from the generic exception header. static inline __cxa_exception * __get_exception_header_from_ue (_Unwind_Exception *exc) { return reinterpret_cast<__cxa_exception *>(exc + 1) - 1; } // Acquire the C++ refcounted exception header from the C++ object. static inline __cxa_refcounted_exception * __get_refcounted_exception_header_from_obj (void *ptr) { return reinterpret_cast<__cxa_refcounted_exception *>(ptr) - 1; } // Acquire the C++ refcounted exception header from the generic exception // header. static inline __cxa_refcounted_exception * __get_refcounted_exception_header_from_ue (_Unwind_Exception *exc) { return reinterpret_cast<__cxa_refcounted_exception *>(exc + 1) - 1; } static inline __cxa_dependent_exception * __get_dependent_exception_from_ue (_Unwind_Exception *exc) { return reinterpret_cast<__cxa_dependent_exception *>(exc + 1) - 1; } #ifdef __ARM_EABI_UNWINDER__ static inline bool __is_gxx_exception_class(_Unwind_Exception_Class c) { // TODO: Take advantage of the fact that c will always be word aligned. return c[0] == 'G' && c[1] == 'N' && c[2] == 'U' && c[3] == 'C' && c[4] == 'C' && c[5] == '+' && c[6] == '+' && (c[7] == '\0' || c[7] == '\x01'); } // Only checks for primary or dependent, but not that it is a C++ exception at // all. static inline bool __is_dependent_exception(_Unwind_Exception_Class c) { return c[7] == '\x01'; } static inline void __GXX_INIT_PRIMARY_EXCEPTION_CLASS(_Unwind_Exception_Class c) { c[0] = 'G'; c[1] = 'N'; c[2] = 'U'; c[3] = 'C'; c[4] = 'C'; c[5] = '+'; c[6] = '+'; c[7] = '\0'; } static inline void __GXX_INIT_DEPENDENT_EXCEPTION_CLASS(_Unwind_Exception_Class c) { c[0] = 'G'; c[1] = 'N'; c[2] = 'U'; c[3] = 'C'; c[4] = 'C'; c[5] = '+'; c[6] = '+'; c[7] = '\x01'; } static inline bool __is_gxx_forced_unwind_class(_Unwind_Exception_Class c) { return c[0] == 'G' && c[1] == 'N' && c[2] == 'U' && c[3] == 'C' && c[4] == 'F' && c[5] == 'O' && c[6] == 'R' && c[7] == '\0'; } static inline void __GXX_INIT_FORCED_UNWIND_CLASS(_Unwind_Exception_Class c) { c[0] = 'G'; c[1] = 'N'; c[2] = 'U'; c[3] = 'C'; c[4] = 'F'; c[5] = 'O'; c[6] = 'R'; c[7] = '\0'; } static inline void* __gxx_caught_object(_Unwind_Exception* eo) { return (void*)eo->barrier_cache.bitpattern[0]; } #else // !__ARM_EABI_UNWINDER__ // This is the primary exception class we report -- "GNUCC++\0". const _Unwind_Exception_Class __gxx_primary_exception_class = ((((((((_Unwind_Exception_Class) 'G' << 8 | (_Unwind_Exception_Class) 'N') << 8 | (_Unwind_Exception_Class) 'U') << 8 | (_Unwind_Exception_Class) 'C') << 8 | (_Unwind_Exception_Class) 'C') << 8 | (_Unwind_Exception_Class) '+') << 8 | (_Unwind_Exception_Class) '+') << 8 | (_Unwind_Exception_Class) '\0'); // This is the dependent (from std::rethrow_exception) exception class we report // "GNUCC++\x01" const _Unwind_Exception_Class __gxx_dependent_exception_class = ((((((((_Unwind_Exception_Class) 'G' << 8 | (_Unwind_Exception_Class) 'N') << 8 | (_Unwind_Exception_Class) 'U') << 8 | (_Unwind_Exception_Class) 'C') << 8 | (_Unwind_Exception_Class) 'C') << 8 | (_Unwind_Exception_Class) '+') << 8 | (_Unwind_Exception_Class) '+') << 8 | (_Unwind_Exception_Class) '\x01'); static inline bool __is_gxx_exception_class(_Unwind_Exception_Class c) { return c == __gxx_primary_exception_class || c == __gxx_dependent_exception_class; } // Only checks for primary or dependent, but not that it is a C++ exception at // all. static inline bool __is_dependent_exception(_Unwind_Exception_Class c) { return (c & 1); } #define __GXX_INIT_PRIMARY_EXCEPTION_CLASS(c) c = __gxx_primary_exception_class #define __GXX_INIT_DEPENDENT_EXCEPTION_CLASS(c) \ c = __gxx_dependent_exception_class // GNU C++ personality routine, Version 0. extern "C" _Unwind_Reason_Code __gxx_personality_v0 (int, _Unwind_Action, _Unwind_Exception_Class, struct _Unwind_Exception *, struct _Unwind_Context *); // GNU C++ sjlj personality routine, Version 0. extern "C" _Unwind_Reason_Code __gxx_personality_sj0 (int, _Unwind_Action, _Unwind_Exception_Class, struct _Unwind_Exception *, struct _Unwind_Context *); static inline void* __gxx_caught_object(_Unwind_Exception* eo) { // Bad as it looks, this actually works for dependent exceptions too. __cxa_exception* header = __get_exception_header_from_ue (eo); return header->adjustedPtr; } #endif // !__ARM_EABI_UNWINDER__ static inline void* __get_object_from_ue(_Unwind_Exception* eo) throw() { return __is_dependent_exception (eo->exception_class) ? __get_dependent_exception_from_ue (eo)->primaryException : eo + 1; } static inline void * __get_object_from_ambiguous_exception(__cxa_exception *p_or_d) throw() { return __get_object_from_ue (&p_or_d->unwindHeader); } } /* namespace __cxxabiv1 */ #pragma GCC visibility pop #endif // _UNWIND_CXX_H @ 1.10 log @initial merge of GCC 12.3.0. this doesn't include any of the changes to the .c -> .cc files renamed, and reverts our local changes to the vax port and libsanitizer subdir. vax GCC was rewritten and our local fixes no longer are relevant, and the new libsanitizer is more updated than our old one, and merging via gcc10->gcc12 is not really possible. unfortunately, our local changes to libsanitizer that aren't related to the general update of those sources (ie, the netbsd code) will need to be re-checked and perhaps re-ported. @ text @d2 1 a2 1 // Copyright (C) 2001-2022 Free Software Foundation, Inc. d170 1 a170 1 extern "C" void __cxa_call_terminate (_Unwind_Exception*) throw () @ 1.9 log @initial merge of GCC 10.3.0. these three files are not yet finished merging: gcc/config/rs6000/rs6000.c libsanitizer/lsan/lsan_allocator.h libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h our current GCC 9 sanitizers are newer than GCC 10's still, so that may take a little to untease, so it's probable that more than these 2 will need more changes. rs6000.c has some changes related to ABI and supported functionality that need to be merged forward. @ text @d2 1 a2 1 // Copyright (C) 2001-2020 Free Software Foundation, Inc. d70 1 a70 1 std::unexpected_handler unexpectedHandler; d124 1 a124 1 std::unexpected_handler unexpectedHandler; d194 1 a194 1 extern void __unexpected(std::unexpected_handler) d199 1 a199 1 extern std::unexpected_handler __unexpected_handler; @ 1.8 log @merge GCC 9.3.0. @ text @d2 1 a2 1 // Copyright (C) 2001-2019 Free Software Foundation, Inc. @ 1.7 log @merge GCC 8.3.0 pass 1. will not compile yet. thare are still about 25 files with merge issues. @ text @d2 1 a2 1 // Copyright (C) 2001-2018 Free Software Foundation, Inc. @ 1.6 log @first pass at merging GCC 7.4.0. unlikely to compile.. @ text @d2 1 a2 1 // Copyright (C) 2001-2017 Free Software Foundation, Inc. @ 1.5 log @merge GCC 6.4.0. sanitizer stuff is probably busted, but most other changes merged easily. docs need to be regenerated with modern versions still. @ text @d2 1 a2 1 // Copyright (C) 2001-2016 Free Software Foundation, Inc. @ 1.5.4.1 log @Sync with HEAD @ text @d2 1 a2 1 // Copyright (C) 2001-2017 Free Software Foundation, Inc. @ 1.5.4.2 log @Mostly merge changes from HEAD upto 20200411 @ text @d2 1 a2 1 // Copyright (C) 2001-2018 Free Software Foundation, Inc. @ 1.5.2.1 log @Sync with HEAD @ text @d2 1 a2 1 // Copyright (C) 2001-2017 Free Software Foundation, Inc. @ 1.4 log @merge GCC 5.3. round 1. this probably won't work :-) libsanitizer likely needs to be re-ported, though i've done most of the updating we'll need i think already. @ text @d2 1 a2 1 // Copyright (C) 2001-2015 Free Software Foundation, Inc. @ 1.3 log @merge gcc 4.8.2 r206687 (part 2). @ text @d2 1 a2 1 // Copyright (C) 2001-2013 Free Software Foundation, Inc. d84 1 a84 1 // The nuber of active cleanup handlers for this exception. d117 5 d138 1 a138 1 // The nuber of active cleanup handlers for this exception. @ 1.2 log @fix inconsistencies in EABI decls. @ text @d2 1 a2 2 // Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 // Free Software Foundation, Inc. d38 14 d66 1 a66 1 void (*exceptionDestructor)(void *); a158 38 // The __cxa_eh_globals for the current thread can be obtained by using // either of the following functions. The "fast" version assumes at least // one prior call of __cxa_get_globals has been made from the current // thread, so no initialization is necessary. extern "C" __cxa_eh_globals *__cxa_get_globals () throw() __attribute__ ((__const__)); extern "C" __cxa_eh_globals *__cxa_get_globals_fast () throw() __attribute__ ((__const__)); // Allocate memory for the primary exception plus the thrown object. extern "C" void *__cxa_allocate_exception(std::size_t thrown_size) throw(); // Free the space allocated for the primary exception. extern "C" void __cxa_free_exception(void *thrown_exception) throw(); // Allocate memory for a dependent exception. extern "C" __cxa_dependent_exception* __cxa_allocate_dependent_exception() throw(); // Free the space allocated for the dependent exception. extern "C" void __cxa_free_dependent_exception(__cxa_dependent_exception *ex) throw(); // Throw the exception. extern "C" void __cxa_throw (void *thrown_exception, std::type_info *tinfo, void (*dest) (void *)) __attribute__((noreturn)); // Used to implement exception handlers. extern "C" void *__cxa_get_exception_ptr (void *) throw() __attribute__ ((__pure__)); extern "C" void *__cxa_begin_catch (void *) throw(); extern "C" void __cxa_end_catch (); extern "C" void __cxa_rethrow () __attribute__((noreturn)); // These facilitate code generation for recurring situations. extern "C" void __cxa_bad_cast () __attribute__((__noreturn__)); extern "C" void __cxa_bad_typeid () __attribute__((__noreturn__)); d164 3 a166 2 extern "C" void __cxa_call_unexpected (void *) __attribute__((noreturn)); extern "C" void __cxa_call_terminate (_Unwind_Exception*) throw () __attribute__((noreturn)); d176 3 a178 2 const std::type_info*, bool, void**); extern "C" void __cxa_begin_cleanup (_Unwind_Exception*); d182 3 d187 4 a190 2 extern void __terminate(std::terminate_handler) throw () __attribute__((__noreturn__)); extern void __unexpected(std::unexpected_handler) __attribute__((noreturn)); @ 1.1 log @Initial revision @ text @d199 2 a200 2 extern "C" bool __cxa_type_match(_Unwind_Exception*, const std::type_info*, bool, void**); @ 1.1.1.1 log @initial import of GCC 4.5.3 sources. changes since 4.1 are way too numerous to review, please see http://gcc.gnu.org/gcc-4.5/changes.html (and the 4.2, 4.3 and 4.4 versions, too.) this includes the core, c++, objc and the non java/ada/fortran parts of the testsuite. @ text @@ 1.1.1.2 log @import GCC 4.8 branch at r206687. highlights from: http://gcc.gnu.org/gcc-4.6/changes.html GCC now has stricter checks for invalid command-line options New -Wunused-but-set-variable and -Wunused-but-set-parameter warnings Many platforms have been obsoleted Link-time optimization improvements A new switch -fstack-usage has been added A new function attribute leaf was introduced A new warning, enabled by -Wdouble-promotion Support for selectively enabling and disabling warnings via #pragma GCC diagnostic has been added There is now experimental support for some features from the upcoming C1X revision of the ISO C standard Improved experimental support for the upcoming C++0x ISO C++ standard G++ now issues clearer diagnostics in several cases Updates for ARM, x86, MIPS, PPC/PPC64, SPARC Darwin, FreeBSD, Solaris 2, MinGW and Cygwin now all support __float128 on 32-bit and 64-bit x86 targets. [*1] highlights from: http://gcc.gnu.org/gcc-4.7/changes.html The -fconserve-space flag has been deprecated Support for a new parameter --param case-values-threshold=n was added Interprocedural and Link-time optimization improvements A new built-in, __builtin_assume_aligned, has been added A new warning option -Wunused-local-typedefs was added A new experimental command-line option -ftrack-macro-expansion was added Support for atomic operations specifying the C++11/C11 memory model has been added There is support for some more features from the C11 revision of the ISO C standard Improved experimental support for the new ISO C++ standard, C++11 Updates for ARM, x86, MIPS, PPC/PPC64, SH, SPARC, TILE* A new option (-grecord-gcc-switches) was added highlights from: http://gcc.gnu.org/gcc-4.8/changes.html GCC now uses C++ as its implementation language. This means that to build GCC from sources, you will need a C++ compiler that understands C++ 2003 DWARF4 is now the default when generating DWARF debug information A new general optimization level, -Og, has been introduced A new option -ftree-partial-pre was added The option -fconserve-space has been removed The command-line options -fipa-struct-reorg and -fipa-matrix-reorg have been removed Interprocedural and Link-time optimization improvements AddressSanitizer, a fast memory error detector, has been added [*2] A new -Wsizeof-pointer-memaccess warning has been added G++ now supports a -std=c++1y option for experimentation with features proposed for the next revision of the standard, expected around 2014 Improved experimental support for the new ISO C++ standard, C++11 A new port has been added to support AArch64 Updates for ARM, x86, MIPS, PPC/PPC64, SH, SPARC, TILE* [*1] we should support this too! [*2] we should look into this. https://code.google.com/p/address-sanitizer/ @ text @d2 2 a3 1 // Copyright (C) 2001-2013 Free Software Foundation, Inc. a38 14 #include #ifdef _GLIBCXX_HAVE_SYS_SDT_H #include /* We only want to use stap probes starting with v3. Earlier versions added too much startup cost. */ #if defined (STAP_PROBE2) && _SDT_NOTE_TYPE >= 3 #define PROBE2(name, arg1, arg2) STAP_PROBE2 (libstdcxx, name, arg1, arg2) #endif #endif #ifndef PROBE2 #define PROBE2(name, arg1, arg2) #endif d53 1 a53 1 void (_GLIBCXX_CDTOR_CALLABI *exceptionDestructor)(void *); d146 38 d189 2 a190 3 extern "C" void __cxa_call_unexpected (void *) __attribute__((__noreturn__)); extern "C" void __cxa_call_terminate (_Unwind_Exception*) throw () __attribute__((__noreturn__)); d199 3 a201 4 extern "C" __cxa_type_match_result __cxa_type_match(_Unwind_Exception*, const std::type_info*, bool, void**); extern "C" bool __cxa_begin_cleanup (_Unwind_Exception*); a204 3 // Handles cleanup from transactional memory restart. extern "C" void __cxa_tm_cleanup (void *, void *, unsigned int) throw(); d207 2 a208 4 extern void __terminate(std::terminate_handler) throw () __attribute__((__noreturn__)); extern void __unexpected(std::unexpected_handler) __attribute__((__noreturn__)); @ 1.1.1.3 log @import GCC 5.3.0. see these urls for details which are too large to include here: http://gcc.gnu.org/gcc-4.9/changes.html http://gcc.gnu.org/gcc-5/changes.html (note that GCC 5.x is a release stream like GCC 4.9.x, 4.8.x, etc.) the main issues we will have are: The default mode for C is now -std=gnu11 instead of -std=gnu89. ARM: The deprecated option -mwords-little-endian has been removed. The options -mapcs, -mapcs-frame, -mtpcs-frame and -mtpcs-leaf-frame which are only applicable to the old ABI have been deprecated. MIPS: The o32 ABI has been modified and extended. The o32 64-bit floating-point register support is now obsolete and has been removed. It has been replaced by three ABI extensions FPXX, FP64A, and FP64. The meaning of the -mfp64 command-line option has changed. It is now used to enable the FP64A and FP64 ABI extensions. @ text @d2 1 a2 1 // Copyright (C) 2001-2015 Free Software Foundation, Inc. d84 1 a84 1 // The number of active cleanup handlers for this exception. a116 5 // Unused member to get similar layout to __cxa_exception, otherwise the // alignment requirements of _Unwind_Exception would require padding bytes // before the unwindHeader member. void (_GLIBCXX_CDTOR_CALLABI *__padding)(void *); d133 1 a133 1 // The number of active cleanup handlers for this exception. @ 1.1.1.4 log @import GCC 6.4.0. see this url for details which are too large to include here: http://gcc.gnu.org/gcc-6/changes.html the main visible changes appear to be: - The default mode for C++ is now -std=gnu++14 instead of -std=gnu++98. - The C and C++ compilers now support attributes on enumerators. - Diagnostics can now contain "fix-it hints" - more warnings (some added to -Wall) @ text @d2 1 a2 1 // Copyright (C) 2001-2016 Free Software Foundation, Inc. @ 1.1.1.5 log @import GCC 7.4.0. main changes include: The non-standard C++0x type traits has_trivial_default_constructor, has_trivial_copy_constructor and has_trivial_copy_assign have been removed. On ARM targets (arm*-*-*), a bug introduced in GCC 5 that affects conformance to the procedure call standard (AAPCS) has been fixed. Many optimiser improvements DWARF-5 support. Many new and enhanced warnings. Warnings about format strings now underline the pertinent part of the string, and can offer suggested fixes. Several new warnings related to buffer overflows and buffer truncation. New __builtin_add_overflow_p, __builtin_sub_overflow_p, __builtin_mul_overflow_p built-ins added that test for overflow. The C++ front end has experimental support for all of the current C++17 draft. The -fverbose-asm option has been expanded to prints comments showing the source lines that correspond to the assembly. The gcc and g++ driver programs will now provide suggestions for misspelled arguments to command-line options. AArch64 specific: GCC has been updated to the latest revision of the procedure call standard (AAPCS64) to provide support for parameter passing when data types have been over-aligned. The ARMv8.2-A and ARMv8.3-A architecture are now supported. ARM specific: Support for the ARMv5 and ARMv5E architectures has been deprecated (which have no known implementations). A new command-line option -mpure-code has been added. It does not allow constant data to be placed in code sections. x86 specific: Support for the AVX-512 4FMAPS, 4VNNIW, VPOPCNTDQ and Software Guard Extensions (SGX) ISA extensions has been added. PPC specific: GCC now diagnoses inline assembly that clobbers register r2. RISC-V specific: Support for the RISC-V instruction set has been added. SH specific: Support for SH5/SH64 has been removed. Support for SH2A has been enhanced. @ text @d2 1 a2 1 // Copyright (C) 2001-2017 Free Software Foundation, Inc. @ 1.1.1.6 log @import GCC 8.3. it includes these new features: - many optimisations improved: inter-procedural, profile-directed, LTO, loops including user-controllable unroll support, and more. - columns numbers added to line numbers in dwarf - gcov extended significantly - many sanitizer updates - many new warning messages - many better hints and more useful error messages - minor ABI changes on x86-64 libstdc++, and some c++17 modes - draft c++2a features - better c++17 experimental support - Armv8.4-A supported, better 8.2-A and 8.3-A support, including 32 bit arm port. cortex a-55, a-75 and a-55.a-75 combo support. - in the GCC bugzilla, 8.1 shows 1149 bugs fixed, 8.2 shows 100, and 8.3 shows 158. @ text @d2 1 a2 1 // Copyright (C) 2001-2018 Free Software Foundation, Inc. @ 1.1.1.7 log @import GCC 7.5.0. doing this here so that the vendor branch has the code we'll merge into gcc.old and the netbsd-9 tree gcc tree. GCC 8.4.0 will be imported immediately on top of this again, restoring the current status. these PRs in the GCC bugzilla are fixed with this update: 89869 80693 89795 84272 85593 86669 87148 87647 87895 88103 88107 88563 88870 88976 89002 89187 89195 89234 89303 89314 89354 89361 89403 89412 89512 89520 89590 89621 89663 89679 89704 89734 89872 89933 90090 90208 87075 85870 89009 89242 88167 80864 81933 85890 86608 87145 88857 89024 89119 89214 89511 89612 89705 89400 81740 82186 84552 86554 87609 88105 88149 88415 88739 88903 89135 89223 89296 89505 89572 89677 89698 89710 90006 90020 90071 90328 90474 91126 91162 91812 91887 90075 88998 89945 87047 87506 88074 88656 88740 91137 89008 84010 89349 91136 91347 91995 89397 87030 60702 78884 85594 87649 87725 88181 88470 88553 88568 88588 88620 88644 88906 88949 89246 89587 89726 89768 89796 89998 90108 90756 90950 91704 88825 88983 86538 51333 89446 90220 91308 92143 89392 90213 90278 91131 91200 91510 89037 91481 87673 88418 88938 88948 90547 27221 58321 61250 67183 67958 77583 83531 86215 88648 88720 88726 89091 89466 89629 90105 90329 90585 90760 90924 91087 89222 81956 71861 35031 69455 81849 82993 85798 88138 88155 88169 88205 88206 88228 88249 88269 88376 77703 80260 82077 86248 88393 90786 57048 66089 66695 67679 68009 71723 72714 84394 85544 87734 88298 90937 91557 63891 64132 65342 68649 68717 71066 71860 71935 77746 78421 78645 78865 78983 79485 79540 85953 88326 89651 90744 @ text @d2 1 a2 1 // Copyright (C) 2001-2017 Free Software Foundation, Inc. @ 1.1.1.8 log @re-import GCC 8.4.0. @ text @d2 1 a2 1 // Copyright (C) 2001-2018 Free Software Foundation, Inc. @ 1.1.1.9 log @initial import of GCC 9.3.0. changes include: - live patching support - shell completion help - generally better diagnostic output (less verbose/more useful) - diagnostics and optimisation choices can be emitted in json - asan memory usage reduction - many general, and specific to switch, inter-procedure, profile and link-time optimisations. from the release notes: "Overall compile time of Firefox 66 and LibreOffice 6.2.3 on an 8-core machine was reduced by about 5% compared to GCC 8.3" - OpenMP 5.0 support - better spell-guesser - partial experimental support for c2x and c++2a - c++17 is no longer experimental - arm AAPCS GCC 6-8 structure passing bug fixed, may cause incompatibility (restored compat with GCC 5 and earlier.) - openrisc support @ text @d2 1 a2 1 // Copyright (C) 2001-2019 Free Software Foundation, Inc. @ 1.1.1.10 log @initial import of GCC 10.3.0. main changes include: caveats: - ABI issue between c++14 and c++17 fixed - profile mode is removed from libstdc++ - -fno-common is now the default new features: - new flags -fallocation-dce, -fprofile-partial-training, -fprofile-reproducible, -fprofile-prefix-path, and -fanalyzer - many new compile and link time optimisations - enhanced drive optimisations - openacc 2.6 support - openmp 5.0 features - new warnings: -Wstring-compare and -Wzero-length-bounds - extended warnings: -Warray-bounds, -Wformat-overflow, -Wrestrict, -Wreturn-local-addr, -Wstringop-overflow, -Warith-conversion, -Wmismatched-tags, and -Wredundant-tags - some likely C2X features implemented - more C++20 implemented - many new arm & intel CPUs known hundreds of reported bugs are fixed. full list of changes can be found at: https://gcc.gnu.org/gcc-10/changes.html @ text @d2 1 a2 1 // Copyright (C) 2001-2020 Free Software Foundation, Inc. @ 1.1.1.11 log @initial import of GCC 12.3.0. major changes in GCC 11 included: - The default mode for C++ is now -std=gnu++17 instead of -std=gnu++14. - When building GCC itself, the host compiler must now support C++11, rather than C++98. - Some short options of the gcov tool have been renamed: -i to -j and -j to -H. - ThreadSanitizer improvements. - Introduce Hardware-assisted AddressSanitizer support. - For targets that produce DWARF debugging information GCC now defaults to DWARF version 5. This can produce up to 25% more compact debug information compared to earlier versions. - Many optimisations. - The existing malloc attribute has been extended so that it can be used to identify allocator/deallocator API pairs. A pair of new -Wmismatched-dealloc and -Wmismatched-new-delete warnings are added. - Other new warnings: -Wsizeof-array-div, enabled by -Wall, warns about divisions of two sizeof operators when the first one is applied to an array and the divisor does not equal the size of the array element. -Wstringop-overread, enabled by default, warns about calls to string functions reading past the end of the arrays passed to them as arguments. -Wtsan, enabled by default, warns about unsupported features in ThreadSanitizer (currently std::atomic_thread_fence). - Enchanced warnings: -Wfree-nonheap-object detects many more instances of calls to deallocation functions with pointers not returned from a dynamic memory allocation function. -Wmaybe-uninitialized diagnoses passing pointers or references to uninitialized memory to functions taking const-qualified arguments. -Wuninitialized detects reads from uninitialized dynamically allocated memory. -Warray-parameter warns about functions with inconsistent array forms. -Wvla-parameter warns about functions with inconsistent VLA forms. - Several new features from the upcoming C2X revision of the ISO C standard are supported with -std=c2x and -std=gnu2x. - Several C++20 features have been implemented. - The C++ front end has experimental support for some of the upcoming C++23 draft. - Several new C++ warnings. - Enhanced Arm, AArch64, x86, and RISC-V CPU support. - The implementation of how program state is tracked within -fanalyzer has been completely rewritten with many enhancements. see https://gcc.gnu.org/gcc-11/changes.html for a full list. major changes in GCC 12 include: - An ABI incompatibility between C and C++ when passing or returning by value certain aggregates containing zero width bit-fields has been discovered on various targets. x86-64, ARM and AArch64 will always ignore them (so there is a C ABI incompatibility between GCC 11 and earlier with GCC 12 or later), PowerPC64 ELFv2 always take them into account (so there is a C++ ABI incompatibility, GCC 4.4 and earlier compatible with GCC 12 or later, incompatible with GCC 4.5 through GCC 11). RISC-V has changed the handling of these already starting with GCC 10. As the ABI requires, MIPS takes them into account handling function return values so there is a C++ ABI incompatibility with GCC 4.5 through 11. - STABS: Support for emitting the STABS debugging format is deprecated and will be removed in the next release. All ports now default to emit DWARF (version 2 or later) debugging info or are obsoleted. - Vectorization is enabled at -O2 which is now equivalent to the original -O2 -ftree-vectorize -fvect-cost-model=very-cheap. - GCC now supports the ShadowCallStack sanitizer. - Support for __builtin_shufflevector compatible with the clang language extension was added. - Support for attribute unavailable was added. - Support for __builtin_dynamic_object_size compatible with the clang language extension was added. - New warnings: -Wbidi-chars warns about potentially misleading UTF-8 bidirectional control characters. -Warray-compare warns about comparisons between two operands of array type. - Some new features from the upcoming C2X revision of the ISO C standard are supported with -std=c2x and -std=gnu2x. - Several C++23 features have been implemented. - Many C++ enhancements across warnings and -f options. see https://gcc.gnu.org/gcc-12/changes.html for a full list. @ text @d2 1 a2 1 // Copyright (C) 2001-2022 Free Software Foundation, Inc. d70 1 a70 1 std::terminate_handler unexpectedHandler; d124 1 a124 1 std::terminate_handler unexpectedHandler; d194 1 a194 1 extern void __unexpected(std::terminate_handler) d199 1 a199 1 extern std::terminate_handler __unexpected_handler; @ 1.1.1.12 log @initial import of GCC 14.3.0. major changes in GCC 13: - improved sanitizer - zstd debug info compression - LTO improvements - SARIF based diagnostic support - new warnings: -Wxor-used-as-pow, -Wenum-int-mismatch, -Wself-move, -Wdangling-reference - many new -Wanalyzer* specific warnings - enhanced warnings: -Wpessimizing-move, -Wredundant-move - new attributes to mark file descriptors, c++23 "assume" - several C23 features added - several C++23 features added - many new features for Arm, x86, RISC-V major changes in GCC 14: - more strict C99 or newer support - ia64* marked deprecated (but seemingly still in GCC 15.) - several new hardening features - support for "hardbool", which can have user supplied values of true/false - explicit support for stack scrubbing upon function exit - better auto-vectorisation support - added clang-compatible __has_feature and __has_extension - more C23, including -std=c23 - several C++26 features added - better diagnostics in C++ templates - new warnings: -Wnrvo, Welaborated-enum-base - many new features for Arm, x86, RISC-V - possible ABI breaking change for SPARC64 and small structures with arrays of floats. @ text @d2 1 a2 1 // Copyright (C) 2001-2024 Free Software Foundation, Inc. d170 1 a170 1 extern "C" void __cxa_call_terminate (void*) throw () @ 1.1.1.1.8.1 log @resync with head @ text @d199 2 a200 2 extern "C" __cxa_type_match_result __cxa_type_match(_Unwind_Exception*, const std::type_info*, bool, void**); @ 1.1.1.1.8.2 log @Rebase to HEAD as of a few days ago. @ text @d2 2 a3 1 // Copyright (C) 2001-2013 Free Software Foundation, Inc. a38 14 #include #ifdef _GLIBCXX_HAVE_SYS_SDT_H #include /* We only want to use stap probes starting with v3. Earlier versions added too much startup cost. */ #if defined (STAP_PROBE2) && _SDT_NOTE_TYPE >= 3 #define PROBE2(name, arg1, arg2) STAP_PROBE2 (libstdcxx, name, arg1, arg2) #endif #endif #ifndef PROBE2 #define PROBE2(name, arg1, arg2) #endif d53 1 a53 1 void (_GLIBCXX_CDTOR_CALLABI *exceptionDestructor)(void *); d146 38 d189 2 a190 3 extern "C" void __cxa_call_unexpected (void *) __attribute__((__noreturn__)); extern "C" void __cxa_call_terminate (_Unwind_Exception*) throw () __attribute__((__noreturn__)); d200 2 a201 3 const std::type_info*, bool, void**); extern "C" bool __cxa_begin_cleanup (_Unwind_Exception*); a204 3 // Handles cleanup from transactional memory restart. extern "C" void __cxa_tm_cleanup (void *, void *, unsigned int) throw(); d207 2 a208 4 extern void __terminate(std::terminate_handler) throw () __attribute__((__noreturn__)); extern void __unexpected(std::unexpected_handler) __attribute__((__noreturn__)); @ 1.1.1.1.2.1 log @sync with (a bit old) head @ text @d199 2 a200 2 extern "C" __cxa_type_match_result __cxa_type_match(_Unwind_Exception*, const std::type_info*, bool, void**); @ 1.1.1.1.2.2 log @sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments") @ text @d2 2 a3 1 // Copyright (C) 2001-2013 Free Software Foundation, Inc. a38 14 #include #ifdef _GLIBCXX_HAVE_SYS_SDT_H #include /* We only want to use stap probes starting with v3. Earlier versions added too much startup cost. */ #if defined (STAP_PROBE2) && _SDT_NOTE_TYPE >= 3 #define PROBE2(name, arg1, arg2) STAP_PROBE2 (libstdcxx, name, arg1, arg2) #endif #endif #ifndef PROBE2 #define PROBE2(name, arg1, arg2) #endif d53 1 a53 1 void (_GLIBCXX_CDTOR_CALLABI *exceptionDestructor)(void *); d146 38 d189 2 a190 3 extern "C" void __cxa_call_unexpected (void *) __attribute__((__noreturn__)); extern "C" void __cxa_call_terminate (_Unwind_Exception*) throw () __attribute__((__noreturn__)); d200 2 a201 3 const std::type_info*, bool, void**); extern "C" bool __cxa_begin_cleanup (_Unwind_Exception*); a204 3 // Handles cleanup from transactional memory restart. extern "C" void __cxa_tm_cleanup (void *, void *, unsigned int) throw(); d207 2 a208 4 extern void __terminate(std::terminate_handler) throw () __attribute__((__noreturn__)); extern void __unexpected(std::unexpected_handler) __attribute__((__noreturn__)); @