Changes in make-relative-prefix.c

Changes in make-relative-prefix.c http://nxr.netbsd.org/rss/src/external/gpl3/gcc/dist/libiberty/make-relative-prefix.c en Copyright 2005 Java branches: 1.1.1; Initial revision /src/external/gpl3/gcc/dist/libiberty/make-relative-prefix.c - 1.1 Tue Jun 21 01:23:29 UTC 2011 mrg 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. /src/external/gpl3/gcc/dist/libiberty/make-relative-prefix.c - 1.1.1.11 Sat Sep 13 23:45:59 UTC 2025 mrg 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. /src/external/gpl3/gcc/dist/libiberty/make-relative-prefix.c - 1.1.1.10 Sun Jul 30 05:21:30 UTC 2023 mrg 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 /src/external/gpl3/gcc/dist/libiberty/make-relative-prefix.c - 1.1.1.9 Sat Apr 10 22:10:15 UTC 2021 mrg 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 /src/external/gpl3/gcc/dist/libiberty/make-relative-prefix.c - 1.1.1.8 Sat Sep 05 07:52:56 UTC 2020 mrg re-import GCC 8.4.0. /src/external/gpl3/gcc/dist/libiberty/make-relative-prefix.c - 1.1.1.7 Tue Aug 11 05:30:43 UTC 2020 mrg 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 /src/external/gpl3/gcc/dist/libiberty/make-relative-prefix.c - 1.1.1.6 Tue Aug 11 05:10:41 UTC 2020 mrg 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. /src/external/gpl3/gcc/dist/libiberty/make-relative-prefix.c - 1.1.1.5 Tue Oct 01 09:36:37 UTC 2019 mrg 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. /src/external/gpl3/gcc/dist/libiberty/make-relative-prefix.c - 1.1.1.4 Sat Jan 19 10:14:13 UTC 2019 mrg branches: 1.1.1.3.24; 1.1.1.3.26; 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/ /src/external/gpl3/gcc/dist/libiberty/make-relative-prefix.c - 1.1.1.3 Sat Mar 01 08:41:40 UTC 2014 mrg Import of gcc 4.5.4. The (possibly incomplete) list of fixed bugs is 50617 [4.5/4.6/4.7 Regression] ICE: RTL flag check: INSN_ANNULLED_BRANCH_P used with unexpected rtx code 'simplify_immed_subreg' in output_bb, at config/pa/pa.c:6631 45383 [4.5 Regression] Implicit conversion to pointer does no longer automatically generate operator== and operator!=. 45606 [4.5 Regression] match a method prototyped a typedef alias with the original type (using stdlib) 47398 [4.5 Regression] tree check: accessed elt 10 of tree_vec with 9 elts in tsubst, at cp/pt.c:10500 49951 [4.5/4.6/4.7 Regression] Debug stepping behavior regarding g++ Class destructor has changed for the worse starting at gcc 4.5.0 43190 [4.4 Regression] Used pointer typedefs eliminated from debug info 43866 [4.4 Regression] wrong code with -fbounds-check -funswitch-loops 43897 [4.4 Regression] IA-64 asm clobbers are ignored 44777 [4.4 Regression] ICE: SIGSEGV with -fprofile-use in gcc.c-torture/execute/comp-goto-2.c 46985 [4.5 Regression] ICE: SIGSEGV in is_gimple_min_invariant (gimple.c:2742) with -fno-tree-ccp -fno-tree-dominator-opts -fno-tree-fre 47780 [4.5 Regression] -fcompare-debug failure with -O -fgcse -fgcse-las -fstack-protector-all 47858 [4.5/4.6/4.7 Regression] IPA-SRA decreases quality of debug info 47903 [4.5 Regression] var-tracking.c: valgrind error 48685 [4.5 Regression] ICE in gimplify_expr, at gimplify.c:7034 52139 [4.5 Regression] ICE: in remove_insn, at emit-rtl.c:3960 with -O -fPIC -fno-tree-dominator-opts -fno-tree-fre 48046 [4.5 Regression] Expected diagnostic "reference to 'type' is ambiguous" not given for function-local static declaration 51406 [4.5/4.6/4.7 Regression][c++0x] Incorrect result of static_cast to rvalue reference to base class. 43949 [4.4 Regression] bogus warning: array subscript is above array bounds 45982 [4.4 Regression] PTA does not track integers 48172 [4.5 Regression] incorrect vectorization of loop in GCC 4.5.* with -O3 49115 [4.5 Regression] invalid return value optimization (?) when exception is thrown and caught 49279 [4.5 Regression] Optimization incorrectly presuming constant variable inside loop in g++ 4.5 and 4.6 with -O2 and -O3 for x86_64 targets 50189 [4.5 Regression] Wrong code error in -O2 [-fstrict-enums] compile, target independent 48660 [4.5/4.6 Regression] ARM ICE in expand_expr_real_1 23656 Cross-compilation with newlib fails in libiberty 37985 [4.5/4.6/4.7/4.8 Regression] unsigned char shift lacks "statement with no effect" warning 38292 [4.5/4.6/4.7/4.8 Regression] corrupted profile info with -O[23] -fprofile-use 40778 [4.5 Regression] Mudflap instrumentation missing in cloned function. 40992 [4.4 Regression] cunroll ignoring asm size 48306 [4.4 Regression] presence of gcc subdir with . in PATH causes breakdown 49651 [4.4 Regression] nested lambdas and -O3 produced incorrect integer variable increments 52223 [4.5/4.6 Regression] libffi's man page install breaks with multilibs and overridden mandir 53418 [4.5 Regression] ICE at gimplify.c:7773 53138 [4.7 Regression] spaceship operator miscompiled 50091 [4.5/4.6/4.7 Regression] -fstack-check generates wrong assembly 50979 architecture mismatch: "mul32" not enabled for "smul" or "umul" 51187 miscompilation of genrecog.c at -O2 for --target=avr 52717 thunk referenced in discarded section when building samba with -flto 48742 [4.5 Regression] Internal error in gimplify_expr 49120 [4.5 Regression] bogus "value computed is not used" warning (variable-length array in compound statement) 49161 [4.5 Regression] Fix VRP on switch stmts 49619 [4.5 Regression] ICE in simplify_subreg, at simplify-rtx.c:5362 49621 [4.5 regression] ICE in trunc_int_for_mode, at explow.c:57 49644 [4.5 Regression] post-increment of promoted operand is incorrect. 51767 [4.5 Regression] ICE with degenerated asm goto 51768 [4.5 Regression] ICE with invalid asm goto 52736 [4.5/4.6/4.7/4.8 Regression] miscompilation: store to aliased __m128d is 8 Bytes off 49440 [4.6 regression] Invalid dynamic_cast for unnamed namespace 50565 [4.5/4.6/4.7 Regression] initializer element is not computable at load time 52294 [4.7 Regression] [ARM Thumb] generated asm code produces "branch out of range" error in gas with -Os -mcpu=cortex-a9 41159 [LTO] ICE in insert_value_copy_on_edge, at tree-outof-ssa.c:225 48822 [4.5 Regression] G++ gets stucks and never finishes compilation when enabling -O2/3 optimization options. 50162 [4.5 Regression] Wrong vectorization 49381 Unresolved symbols in libgcjgc.a when linking gctest 45786 [4.5 Regression] Relational operators .eq. and == are not recognized as equivalent 48708 Invalid V2DI vector set insn generated 50464 Using -Ofast -march=bdver1 results in internal compiler error: in extract_insn, at recog.c:2109 51821 [4.5/4.6/4.7 Regression] 64bit > 32bit conversion produces incorrect results with optimizations 52698 -maddress-mode=long doesn't work 53228 [4.6/4.7/4.8 Regression] target attributes in libcpp/lex.c cause illegal instructions to be used elsewhere 42082 [C++0x] ICE on probably invalid with "canonical types differ for identical types" 42652 vectorizer created unaligned vector insns 42856 [4.4 Regression] FAIL: gcc.dg/torture/pr41555.c -O0 (test for excess errors) 47733 psignal (int, const? char*) in libiberty/strsignal.h 48743 -march=native mis-detects AMD K6-2+ / K6-3 as Athlon - compiled C fails with "illegal instruction" 49038 [4.5/4.6/4.7 Regression] -ftree-vectorise introduces reads past end of array 49448 arm-tab-linux-gnu-eabi enableds big endian when it should not 49461 boehm-gc and gcj incompatible with pie 50875 O3 and -mavx lead to internal compiler error: in find_reloads 51161 [C++0x] Illegal static_cast to rvalue reference to ambiguous base class 51393 Wrong parameter type for _mm256_insert_epi64 in avxintrin.h 51444 [4.4 Regression]: Spurious "is used uninitialized" warning for structure with bitfields 51835 ARM EABI violation when passing arguments to helper floating functions like __aeabi_d2iz 52894 [4.5,4.6,4.7 Regression] Stage1 bootstrap fails with gcc-4.6.3: Infinite loop in pointer_set_insert 53310 [4.5/4.6/4.7/4.8 Regression] EOSHIFT leaks memory 53744 gcov version oscillates between 407* and 407p on branches 52335 [4.4/4.5/4.6/4.7 Regression] I/O: -std=f95 rejects valid DELIM= in OPEN 46192 [4.5/4.6/4.7 regression] wrong code for renaming of volatile packed array with address clause 44581 [4.5/4.6/4.7 Regression] internal compiler error: in simplify_subreg 49307 [4.5/4.6/4.7 Regression] ICE in spill_failure, at reload1.c:2113 50163 [4.4/4.5/4.6/4.7 Regression] ICE: initialization expression 50273 [4.5/4.6/4.7 Regression] -Walign-commons no longer effective 52022 [4.5/4.6/4.7 Regression] Wrong-code with procedures passed as actual argument 52452 [4.5/4.6/4.7/4.8 Regression] INTRINSIC cannot be applied to gfortran's ETIME 25973 [4.5/4.6/4.7/4.8 Regression] Wrong warning: control reaches end of non-void function 53521 [4.5/4.6/4.7/4.8 Regression] Memory leak with zero-sized array constructor /src/external/gpl3/gcc/dist/libiberty/make-relative-prefix.c - 1.1.1.2 Tue Sep 18 06:16:08 UTC 2012 skrll branches: 1.1.1.1.2; 1.1.1.1.8; 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. /src/external/gpl3/gcc/dist/libiberty/make-relative-prefix.c - 1.1.1.1 Tue Jun 21 01:23:29 UTC 2011 mrg Mostly merge changes from HEAD upto 20200411 /src/external/gpl3/gcc/dist/libiberty/make-relative-prefix.c - 1.1.1.3.26.2 Mon Apr 13 07:58:19 UTC 2020 martin Sync with HEAD /src/external/gpl3/gcc/dist/libiberty/make-relative-prefix.c - 1.1.1.3.26.1 Mon Jun 10 21:54:26 UTC 2019 christos Sync with HEAD /src/external/gpl3/gcc/dist/libiberty/make-relative-prefix.c - 1.1.1.3.24.1 Sat Jan 26 21:59:14 UTC 2019 pgoyette Rebase to HEAD as of a few days ago. /src/external/gpl3/gcc/dist/libiberty/make-relative-prefix.c - 1.1.1.1.8.2 Tue Aug 19 23:54:34 UTC 2014 tls Resync to 2012-11-19 00:00:00 UTC /src/external/gpl3/gcc/dist/libiberty/make-relative-prefix.c - 1.1.1.1.8.1 Tue Nov 20 02:58:32 UTC 2012 tls 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") /src/external/gpl3/gcc/dist/libiberty/make-relative-prefix.c - 1.1.1.1.2.2 Thu May 22 16:36:43 UTC 2014 yamt sync with head /src/external/gpl3/gcc/dist/libiberty/make-relative-prefix.c - 1.1.1.1.2.1 Tue Oct 30 18:57:32 UTC 2012 yamt