head 1.4; access; symbols netbsd-11-0-RC4:1.3 netbsd-11-0-RC3:1.3 netbsd-11-0-RC2:1.3 netbsd-11-0-RC1:1.3 gcc-14-3-0:1.1.1.3 perseant-exfatfs-base-20250801:1.3 netbsd-11:1.3.0.4 netbsd-11-base:1.3 gcc-12-5-0:1.1.1.2 perseant-exfatfs-base-20240630:1.3 gcc-12-4-0:1.1.1.2 perseant-exfatfs:1.3.0.2 perseant-exfatfs-base:1.3 gcc-12-3-0:1.1.1.2 gcc-10-5-0:1.1.1.1 gcc-10-4-0:1.1.1.1 cjep_sun2x:1.2.0.4 cjep_sun2x-base:1.2 cjep_staticlib_x-base1:1.2 cjep_staticlib_x:1.2.0.2 cjep_staticlib_x-base:1.2 gcc-10-3-0:1.1.1.1 FSF:1.1.1; locks; strict; comment @// @; 1.4 date 2025.09.14.00.08.57; author mrg; state Exp; branches; next 1.3; commitid x9D5QEnvbeMI4CaG; 1.3 date 2023.07.31.01.44.56; author mrg; state Exp; branches; next 1.2; commitid q79F5Opf0FLsyTyE; 1.2 date 2021.04.11.23.54.27; author mrg; state dead; branches; next 1.1; commitid wJn7ggfUTEMOWVOC; 1.1 date 2021.04.10.22.09.21; author mrg; state Exp; branches 1.1.1.1; next ; commitid eC4g0MRpqTvEkNOC; 1.1.1.1 date 2021.04.10.22.09.21; author mrg; state Exp; branches; next 1.1.1.2; commitid eC4g0MRpqTvEkNOC; 1.1.1.2 date 2023.07.30.05.20.40; author mrg; state Exp; branches; next 1.1.1.3; commitid tk6nV4mbc9nVEMyE; 1.1.1.3 date 2025.09.13.23.45.04; author mrg; state Exp; branches; next ; commitid KwhwN4krNWa6XBaG; desc @@ 1.4 log @merge GCC 14.3.0. @ text @//===-- sanitizer_procmaps_solaris.cpp ------------------------------------===// // // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception // //===----------------------------------------------------------------------===// // // Information about the process mappings (Solaris-specific parts). //===----------------------------------------------------------------------===// // Before Solaris 11.4, doesn't work in a largefile environment. #undef _FILE_OFFSET_BITS #include "sanitizer_platform.h" #if SANITIZER_SOLARIS # include # include # include # include "sanitizer_common.h" # include "sanitizer_procmaps.h" namespace __sanitizer { void ReadProcMaps(ProcSelfMapsBuff *proc_maps) { uptr fd = internal_open("/proc/self/xmap", O_RDONLY); CHECK_NE(fd, -1); uptr Size = internal_filesize(fd); CHECK_GT(Size, 0); // Allow for additional entries by following mmap. size_t MmapedSize = Size * 4 / 3; void *VmMap = MmapOrDie(MmapedSize, "ReadProcMaps()"); Size = internal_read(fd, VmMap, MmapedSize); CHECK_NE(Size, -1); internal_close(fd); proc_maps->data = (char *)VmMap; proc_maps->mmaped_size = MmapedSize; proc_maps->len = Size; } bool MemoryMappingLayout::Next(MemoryMappedSegment *segment) { if (Error()) return false; // simulate empty maps char *last = data_.proc_self_maps.data + data_.proc_self_maps.len; if (data_.current >= last) return false; prxmap_t *xmapentry = const_cast(reinterpret_cast(data_.current)); segment->start = (uptr)xmapentry->pr_vaddr; segment->end = (uptr)(xmapentry->pr_vaddr + xmapentry->pr_size); segment->offset = (uptr)xmapentry->pr_offset; segment->protection = 0; if ((xmapentry->pr_mflags & MA_READ) != 0) segment->protection |= kProtectionRead; if ((xmapentry->pr_mflags & MA_WRITE) != 0) segment->protection |= kProtectionWrite; if ((xmapentry->pr_mflags & MA_EXEC) != 0) segment->protection |= kProtectionExecute; if ((xmapentry->pr_mflags & MA_SHARED) != 0) segment->protection |= kProtectionShared; if (segment->filename != NULL && segment->filename_size > 0) { char proc_path[PATH_MAX + 1]; // Avoid unnecessary readlink on unnamed entires. if (xmapentry->pr_mapname[0] == '\0') segment->filename[0] = '\0'; else { internal_snprintf(proc_path, sizeof(proc_path), "/proc/self/path/%s", xmapentry->pr_mapname); ssize_t sz = internal_readlink(proc_path, segment->filename, segment->filename_size - 1); // If readlink failed, the map is anonymous. if (sz == -1) segment->filename[0] = '\0'; else if ((size_t)sz < segment->filename_size) // readlink doesn't NUL-terminate. segment->filename[sz] = '\0'; } } data_.current += sizeof(prxmap_t); return true; } } // namespace __sanitizer #endif // SANITIZER_SOLARIS @ 1.3 log @make this actually be GCC 12.3.0's libsanitizer. the libsanitizer we used with GCC 9 and GCC 10 was significantly ahead of the GCC 9 and GCC 10 provided versions. @ text @d16 3 a18 2 #include "sanitizer_common.h" #include "sanitizer_procmaps.h" d20 2 a21 2 #include #include d26 14 a39 6 if (!ReadFileToBuffer("/proc/self/xmap", &proc_maps->data, &proc_maps->mmaped_size, &proc_maps->len)) { proc_maps->data = nullptr; proc_maps->mmaped_size = 0; proc_maps->len = 0; } d61 2 d67 2 a68 7 internal_snprintf(proc_path, sizeof(proc_path), "/proc/self/path/%s", xmapentry->pr_mapname); ssize_t sz = internal_readlink(proc_path, segment->filename, segment->filename_size - 1); // If readlink failed, the map is anonymous. if (sz == -1) { d70 13 a82 3 } else if ((size_t)sz < segment->filename_size) // readlink doesn't NUL-terminate. segment->filename[sz] = '\0'; @ 1.2 log @revert sanitizer back to the version we were using with GCC 9, since that one was already newer than the GCC 10 version. @ text @d12 2 a18 2 // Before Solaris 11.4, doesn't work in a largefile environment. #undef _FILE_OFFSET_BITS d38 2 a39 1 prxmap_t *xmapentry = (prxmap_t*)data_.current; d58 9 a66 1 internal_readlink(proc_path, segment->filename, segment->filename_size); @ 1.1 log @Initial revision @ text @@ 1.1.1.1 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 @@ 1.1.1.2 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 @a11 2 // Before Solaris 11.4, doesn't work in a largefile environment. #undef _FILE_OFFSET_BITS d17 2 d38 1 a38 2 prxmap_t *xmapentry = const_cast(reinterpret_cast(data_.current)); d57 1 a57 9 ssize_t sz = internal_readlink(proc_path, segment->filename, segment->filename_size - 1); // If readlink failed, the map is anonymous. if (sz == -1) { segment->filename[0] = '\0'; } else if ((size_t)sz < segment->filename_size) // readlink doesn't NUL-terminate. segment->filename[sz] = '\0'; @ 1.1.1.3 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 @d16 2 a17 3 # include # include # include d19 2 a20 2 # include "sanitizer_common.h" # include "sanitizer_procmaps.h" d25 6 a30 14 uptr fd = internal_open("/proc/self/xmap", O_RDONLY); CHECK_NE(fd, -1); uptr Size = internal_filesize(fd); CHECK_GT(Size, 0); // Allow for additional entries by following mmap. size_t MmapedSize = Size * 4 / 3; void *VmMap = MmapOrDie(MmapedSize, "ReadProcMaps()"); Size = internal_read(fd, VmMap, MmapedSize); CHECK_NE(Size, -1); internal_close(fd); proc_maps->data = (char *)VmMap; proc_maps->mmaped_size = MmapedSize; proc_maps->len = Size; a51 2 if ((xmapentry->pr_mflags & MA_SHARED) != 0) segment->protection |= kProtectionShared; d56 7 a62 2 // Avoid unnecessary readlink on unnamed entires. if (xmapentry->pr_mapname[0] == '\0') d64 3 a66 13 else { internal_snprintf(proc_path, sizeof(proc_path), "/proc/self/path/%s", xmapentry->pr_mapname); ssize_t sz = internal_readlink(proc_path, segment->filename, segment->filename_size - 1); // If readlink failed, the map is anonymous. if (sz == -1) segment->filename[0] = '\0'; else if ((size_t)sz < segment->filename_size) // readlink doesn't NUL-terminate. segment->filename[sz] = '\0'; } @