From owner-svn-src-stable-9@freebsd.org Sat Apr 1 12:27:04 2017 Return-Path: Delivered-To: svn-src-stable-9@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 1AC84D27E0A; Sat, 1 Apr 2017 12:27:04 +0000 (UTC) (envelope-from dim@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id AFAA6B69; Sat, 1 Apr 2017 12:27:03 +0000 (UTC) (envelope-from dim@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id v31CR2HY035780; Sat, 1 Apr 2017 12:27:02 GMT (envelope-from dim@FreeBSD.org) Received: (from dim@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id v31CR2Cv035774; Sat, 1 Apr 2017 12:27:02 GMT (envelope-from dim@FreeBSD.org) Message-Id: <201704011227.v31CR2Cv035774@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: dim set sender to dim@FreeBSD.org using -f From: Dimitry Andric Date: Sat, 1 Apr 2017 12:27:02 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-9@freebsd.org Subject: svn commit: r316356 - in stable/9: contrib/libcxxrt lib/libcxxrt X-SVN-Group: stable-9 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-stable-9@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: SVN commit messages for only the 9-stable src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 01 Apr 2017 12:27:04 -0000 Author: dim Date: Sat Apr 1 12:27:02 2017 New Revision: 316356 URL: https://svnweb.freebsd.org/changeset/base/316356 Log: Synchronize libcxxrt in stable/9 with stable/{10,11} and head. MFC r284549 (by emaste): Import libcxxrt master e64e93fe5bba67a6d52cbe5a97f8770c054bfa65 This includes a number of fixes to the C++ demangler (obtained from upstream ELF Tool Chain). MFC r284551 (by emaste): Import libcxxrt master e64e93fe5bba67a6d52cbe5a97f8770c054bfa65. This includes a number of demangler fixes obtained from upstream ELF Tool Chain. PR: 200913 Sponsored by: The FreeBSD Foundation MFC r284553 (by emaste): Update libcxxrt upgrade instructions The typeinfo file no longer exists upstream. MFC r288830: Add std::uncaught_exceptions() to libcxxrt (C++17, see N4152 and N4259). This has also been submitted upstream. MFC r288830: Add std::uncaught_exceptions() to libcxxrt (C++17, see N4152 and N4259). This has also been submitted upstream. MFC r297299: Compile libcxxrt as C++11, since it is only really used in combination with libc++, which is also C++11. Also change one _Static_assert (which is really C11) back into static_assert, like upstream. This should help when compiling libcxxrt with newer versions of gcc, which refuse to recognize any form of static assertions, if not compiling for C++11 or higher. While here, add -nostdinc++ to CFLAGS, to prevent picking up any C++ headers outside the source tree. MFC r299144: Import libcxxrt master 516a65c109eb0a01e5e95fbef455eb3215135cef. Interesting fixes: 3adaa2e Fix _Unwind_Exception cleanup functions 286776c Check exception cleanup function ptr before calling edda626 Correct exception specifications on new and delete operators MFC r303157 (by emaste): libcxxrt: add padding in __cxa_allocate_* to fix alignment The addition of the referenceCount to __cxa_allocate_exception put the unwindHeader at offset 0x58 in __cxa_exception, but it requires 16-byte alignment. In order to avoid changing the current __cxa_exception ABI (and thus breaking its consumers), add explicit padding in the allocation routines (and account for it when freeing). This is intended as a lower-risk change for FreeBSD 11. A "more correct" fix should be prepared for upstream and -CURRENT. Reviewed by: dim Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D7271 MFC r303400 (by emaste): libcxxrt: fix demangling of wchar_t 'wchar_t' is 7 characters long, not 6. r303297 fixed this in libelftc, but not the second copy of this file that we have in libcxxrt. PR: 208661 Submitted by: Daniel McRobb Obtained from: ELF Tool Chain r3480 MFC r305396: Add _US_ACTION_MASK to libcxxrt's arm-specific unwind header. This value is used in newer versions of compiler-rt. MFC r315947 | dim | 2017-03-25 14:17:48 +0100 (Sat, 25 Mar 2017) | 8 lines Import libcxxrt master 8a853717e61d5d55cbdf74d9d0a7545da5d5ff92. Interesting fixes which were not already merged: 0c7c611 Merge C++ demangler bug fixes from ELF Tool Chain (#40) 2b208d9 __cxa_demangle_gnu3: demangle 'z' as '...', not 'ellipsis' (#41) Modified: stable/9/contrib/libcxxrt/FREEBSD-upgrade stable/9/contrib/libcxxrt/exception.cc stable/9/contrib/libcxxrt/guard.cc stable/9/contrib/libcxxrt/libelftc_dem_gnu3.c stable/9/contrib/libcxxrt/memory.cc stable/9/contrib/libcxxrt/unwind-arm.h stable/9/lib/libcxxrt/Makefile stable/9/lib/libcxxrt/Version.map Directory Properties: stable/9/ (props changed) stable/9/contrib/ (props changed) stable/9/contrib/libcxxrt/ (props changed) stable/9/lib/ (props changed) stable/9/lib/libcxxrt/ (props changed) Modified: stable/9/contrib/libcxxrt/FREEBSD-upgrade ============================================================================== --- stable/9/contrib/libcxxrt/FREEBSD-upgrade Sat Apr 1 12:22:34 2017 (r316355) +++ stable/9/contrib/libcxxrt/FREEBSD-upgrade Sat Apr 1 12:27:02 2017 (r316356) @@ -3,4 +3,4 @@ $FreeBSD$ This is the FreeBSD copy of libcxxrt. It contains the src directory from the upstream repository. -When updating, copy *.{c,cc,h} and typeinfo from the upstream src/. +When updating, copy *.{c,cc,h} from the upstream src/. Modified: stable/9/contrib/libcxxrt/exception.cc ============================================================================== --- stable/9/contrib/libcxxrt/exception.cc Sat Apr 1 12:22:34 2017 (r316355) +++ stable/9/contrib/libcxxrt/exception.cc Sat Apr 1 12:27:02 2017 (r316356) @@ -304,13 +304,17 @@ static pthread_key_t eh_key; static void exception_cleanup(_Unwind_Reason_Code reason, struct _Unwind_Exception *ex) { - __cxa_free_exception(static_cast(ex)); + // Exception layout: + // [__cxa_exception [_Unwind_Exception]] [exception object] + // + // __cxa_free_exception expects a pointer to the exception object + __cxa_free_exception(static_cast(ex + 1)); } static void dependent_exception_cleanup(_Unwind_Reason_Code reason, struct _Unwind_Exception *ex) { - __cxa_free_dependent_exception(static_cast(ex)); + __cxa_free_dependent_exception(static_cast(ex + 1)); } /** @@ -340,7 +344,8 @@ static void thread_cleanup(void* thread_ if (info->foreign_exception_state != __cxa_thread_info::none) { _Unwind_Exception *e = reinterpret_cast<_Unwind_Exception*>(info->globals.caughtExceptions); - e->exception_cleanup(_URC_FOREIGN_EXCEPTION_CAUGHT, e); + if (e->exception_cleanup) + e->exception_cleanup(_URC_FOREIGN_EXCEPTION_CAUGHT, e); } else { @@ -567,6 +572,19 @@ static void free_exception(char *e) } } +#ifdef __LP64__ +/** + * There's an ABI bug in __cxa_exception: unwindHeader requires 16-byte + * alignment but it was broken by the addition of the referenceCount. + * The unwindHeader is at offset 0x58 in __cxa_exception. In order to keep + * compatibility with consumers of the broken __cxa_exception, explicitly add + * padding on allocation (and account for it on free). + */ +static const int exception_alignment_padding = 8; +#else +static const int exception_alignment_padding = 0; +#endif + /** * Allocates an exception structure. Returns a pointer to the space that can * be used to store an object of thrown_size bytes. This function will use an @@ -575,16 +593,19 @@ static void free_exception(char *e) */ extern "C" void *__cxa_allocate_exception(size_t thrown_size) { - size_t size = thrown_size + sizeof(__cxa_exception); + size_t size = exception_alignment_padding + sizeof(__cxa_exception) + + thrown_size; char *buffer = alloc_or_die(size); - return buffer+sizeof(__cxa_exception); + return buffer + exception_alignment_padding + sizeof(__cxa_exception); } extern "C" void *__cxa_allocate_dependent_exception(void) { - size_t size = sizeof(__cxa_dependent_exception); + size_t size = exception_alignment_padding + + sizeof(__cxa_dependent_exception); char *buffer = alloc_or_die(size); - return buffer+sizeof(__cxa_dependent_exception); + return buffer + exception_alignment_padding + + sizeof(__cxa_dependent_exception); } /** @@ -612,7 +633,8 @@ extern "C" void __cxa_free_exception(voi } } - free_exception(reinterpret_cast(ex)); + free_exception(reinterpret_cast(ex) - + exception_alignment_padding); } static void releaseException(__cxa_exception *exception) @@ -639,7 +661,8 @@ void __cxa_free_dependent_exception(void { releaseException(realExceptionFromException(reinterpret_cast<__cxa_exception*>(ex))); } - free_exception(reinterpret_cast(ex)); + free_exception(reinterpret_cast(ex) - + exception_alignment_padding); } /** @@ -1282,12 +1305,13 @@ extern "C" void __cxa_end_catch() if (ti->foreign_exception_state != __cxa_thread_info::none) { - globals->caughtExceptions = 0; if (ti->foreign_exception_state != __cxa_thread_info::rethrown) { _Unwind_Exception *e = reinterpret_cast<_Unwind_Exception*>(ti->globals.caughtExceptions); - e->exception_cleanup(_URC_FOREIGN_EXCEPTION_CAUGHT, e); + if (e->exception_cleanup) + e->exception_cleanup(_URC_FOREIGN_EXCEPTION_CAUGHT, e); } + globals->caughtExceptions = 0; ti->foreign_exception_state = __cxa_thread_info::none; return; } @@ -1474,6 +1498,15 @@ namespace std return info->globals.uncaughtExceptions != 0; } /** + * Returns the number of exceptions currently being thrown that have not + * been caught. This can occur inside a nested catch statement. + */ + int uncaught_exceptions() throw() + { + __cxa_thread_info *info = thread_info(); + return info->globals.uncaughtExceptions; + } + /** * Returns the current unexpected handler. */ unexpected_handler get_unexpected() throw() Modified: stable/9/contrib/libcxxrt/guard.cc ============================================================================== --- stable/9/contrib/libcxxrt/guard.cc Sat Apr 1 12:22:34 2017 (r316355) +++ stable/9/contrib/libcxxrt/guard.cc Sat Apr 1 12:27:02 2017 (r316356) @@ -101,7 +101,7 @@ typedef struct { uint32_t init_half; uint32_t lock_half; } guard_t; -_Static_assert(sizeof(guard_t) == sizeof(uint64_t), ""); +static_assert(sizeof(guard_t) == sizeof(uint64_t), ""); static const uint32_t LOCKED = 1; static const uint32_t INITIALISED = static_cast(1) << 24; # endif Modified: stable/9/contrib/libcxxrt/libelftc_dem_gnu3.c ============================================================================== --- stable/9/contrib/libcxxrt/libelftc_dem_gnu3.c Sat Apr 1 12:22:34 2017 (r316355) +++ stable/9/contrib/libcxxrt/libelftc_dem_gnu3.c Sat Apr 1 12:27:02 2017 (r316356) @@ -59,7 +59,7 @@ struct vector_str { enum type_qualifier { TYPE_PTR, TYPE_REF, TYPE_CMX, TYPE_IMG, TYPE_EXT, TYPE_RST, TYPE_VAT, - TYPE_CST + TYPE_CST, TYPE_VEC }; struct vector_type_qualifier { @@ -397,6 +397,8 @@ static int cpp_demangle_read_array(struc static int cpp_demangle_read_encoding(struct cpp_demangle_data *); static int cpp_demangle_read_expr_primary(struct cpp_demangle_data *); static int cpp_demangle_read_expression(struct cpp_demangle_data *); +static int cpp_demangle_read_expression_flat(struct cpp_demangle_data *, + char **); static int cpp_demangle_read_expression_binary(struct cpp_demangle_data *, const char *, size_t); static int cpp_demangle_read_expression_unary(struct cpp_demangle_data *, @@ -408,8 +410,12 @@ static int cpp_demangle_read_function(st static int cpp_demangle_local_source_name(struct cpp_demangle_data *ddata); static int cpp_demangle_read_local_name(struct cpp_demangle_data *); static int cpp_demangle_read_name(struct cpp_demangle_data *); +static int cpp_demangle_read_name_flat(struct cpp_demangle_data *, + char**); static int cpp_demangle_read_nested_name(struct cpp_demangle_data *); static int cpp_demangle_read_number(struct cpp_demangle_data *, long *); +static int cpp_demangle_read_number_as_string(struct cpp_demangle_data *, + char **); static int cpp_demangle_read_nv_offset(struct cpp_demangle_data *); static int cpp_demangle_read_offset(struct cpp_demangle_data *); static int cpp_demangle_read_offset_number(struct cpp_demangle_data *); @@ -423,6 +429,8 @@ static int cpp_demangle_read_tmpl_arg(st static int cpp_demangle_read_tmpl_args(struct cpp_demangle_data *); static int cpp_demangle_read_tmpl_param(struct cpp_demangle_data *); static int cpp_demangle_read_type(struct cpp_demangle_data *, int); +static int cpp_demangle_read_type_flat(struct cpp_demangle_data *, + char **); static int cpp_demangle_read_uqname(struct cpp_demangle_data *); static int cpp_demangle_read_v_offset(struct cpp_demangle_data *); static char *decode_fp_to_double(const char *, size_t); @@ -601,17 +609,18 @@ cpp_demangle_push_fp(struct cpp_demangle fp = ddata->cur; while (*ddata->cur != 'E') ++ddata->cur; - ++ddata->cur; if ((f = decoder(fp, ddata->cur - fp)) == NULL) return (0); rtn = 0; if ((len = strlen(f)) > 0) - rtn = cpp_demangle_push_str(ddata, f, len); + rtn = cpp_demangle_push_str(ddata, f, len); free(f); + ++ddata->cur; + return (rtn); } @@ -695,7 +704,8 @@ cpp_demangle_push_type_qualifier(struct if (type_str != NULL) { if (!vector_str_push(&subst_v, "*", 1)) goto clean; - if (!cpp_demangle_push_subst_v(ddata, &subst_v)) + if (!cpp_demangle_push_subst_v(ddata, + &subst_v)) goto clean; } break; @@ -706,7 +716,8 @@ cpp_demangle_push_type_qualifier(struct if (type_str != NULL) { if (!vector_str_push(&subst_v, "&", 1)) goto clean; - if (!cpp_demangle_push_subst_v(ddata, &subst_v)) + if (!cpp_demangle_push_subst_v(ddata, + &subst_v)) goto clean; } break; @@ -717,7 +728,8 @@ cpp_demangle_push_type_qualifier(struct if (type_str != NULL) { if (!vector_str_push(&subst_v, " complex", 8)) goto clean; - if (!cpp_demangle_push_subst_v(ddata, &subst_v)) + if (!cpp_demangle_push_subst_v(ddata, + &subst_v)) goto clean; } break; @@ -726,23 +738,26 @@ cpp_demangle_push_type_qualifier(struct if (!cpp_demangle_push_str(ddata, " imaginary", 10)) goto clean; if (type_str != NULL) { - if (!vector_str_push(&subst_v, " imaginary", 10)) + if (!vector_str_push(&subst_v, " imaginary", + 10)) goto clean; - if (!cpp_demangle_push_subst_v(ddata, &subst_v)) + if (!cpp_demangle_push_subst_v(ddata, + &subst_v)) goto clean; } break; case TYPE_EXT: - if (e_idx > v->ext_name.size - 1) + if (v->ext_name.size == 0 || + e_idx > v->ext_name.size - 1) goto clean; - if ((e_len = strlen(v->ext_name.container[e_idx])) == 0) + if ((e_len = strlen(v->ext_name.container[e_idx])) == + 0) goto clean; - if ((buf = malloc(sizeof(char) * (e_len + 1))) == NULL) + if ((buf = malloc(e_len + 2)) == NULL) goto clean; - - memcpy(buf, " ", 1); - memcpy(buf + 1, v->ext_name.container[e_idx], e_len); + snprintf(buf, e_len + 2, " %s", + v->ext_name.container[e_idx]); if (!cpp_demangle_push_str(ddata, buf, e_len + 1)) { free(buf); @@ -755,7 +770,8 @@ cpp_demangle_push_type_qualifier(struct free(buf); goto clean; } - if (!cpp_demangle_push_subst_v(ddata, &subst_v)) { + if (!cpp_demangle_push_subst_v(ddata, + &subst_v)) { free(buf); goto clean; } @@ -770,7 +786,8 @@ cpp_demangle_push_type_qualifier(struct if (type_str != NULL) { if (!vector_str_push(&subst_v, " restrict", 9)) goto clean; - if (!cpp_demangle_push_subst_v(ddata, &subst_v)) + if (!cpp_demangle_push_subst_v(ddata, + &subst_v)) goto clean; } break; @@ -781,7 +798,8 @@ cpp_demangle_push_type_qualifier(struct if (type_str != NULL) { if (!vector_str_push(&subst_v, " volatile", 9)) goto clean; - if (!cpp_demangle_push_subst_v(ddata, &subst_v)) + if (!cpp_demangle_push_subst_v(ddata, + &subst_v)) goto clean; } break; @@ -792,12 +810,43 @@ cpp_demangle_push_type_qualifier(struct if (type_str != NULL) { if (!vector_str_push(&subst_v, " const", 6)) goto clean; - if (!cpp_demangle_push_subst_v(ddata, &subst_v)) + if (!cpp_demangle_push_subst_v(ddata, + &subst_v)) goto clean; } break; - }; + case TYPE_VEC: + if (v->ext_name.size == 0 || + e_idx > v->ext_name.size - 1) + goto clean; + if ((e_len = strlen(v->ext_name.container[e_idx])) == + 0) + goto clean; + if ((buf = malloc(e_len + 12)) == NULL) + goto clean; + snprintf(buf, e_len + 12, " __vector(%s)", + v->ext_name.container[e_idx]); + if (!cpp_demangle_push_str(ddata, buf, e_len + 11)) { + free(buf); + goto clean; + } + if (type_str != NULL) { + if (!vector_str_push(&subst_v, buf, + e_len + 11)) { + free(buf); + goto clean; + } + if (!cpp_demangle_push_subst_v(ddata, + &subst_v)) { + free(buf); + goto clean; + } + } + free(buf); + ++e_idx; + break; + } --idx; } @@ -947,14 +996,18 @@ cpp_demangle_read_expr_primary(struct cp switch (*ddata->cur) { case 'b': + if (*(ddata->cur + 2) != 'E') + return (0); switch (*(++ddata->cur)) { case '0': + ddata->cur += 2; return (cpp_demangle_push_str(ddata, "false", 5)); case '1': + ddata->cur += 2; return (cpp_demangle_push_str(ddata, "true", 4)); default: return (0); - }; + } case 'd': ++ddata->cur; @@ -999,11 +1052,12 @@ cpp_demangle_read_expr_primary(struct cp ++ddata->cur; } ++ddata->cur; - return (cpp_demangle_push_str(ddata, num, ddata->cur - num)); + return (cpp_demangle_push_str(ddata, num, + ddata->cur - num - 1)); default: return (0); - }; + } } static int @@ -1278,19 +1332,51 @@ cpp_demangle_read_expression(struct cpp_ /* operator sizeof */ ddata->cur += 2; return (cpp_demangle_read_expression_unary(ddata, "sizeof", 6)); - }; + } switch (*ddata->cur) { case 'L': return (cpp_demangle_read_expr_primary(ddata)); case 'T': return (cpp_demangle_read_tmpl_param(ddata)); - }; + } return (0); } static int +cpp_demangle_read_expression_flat(struct cpp_demangle_data *ddata, char **str) +{ + struct vector_str *output; + size_t i, p_idx, idx, exp_len; + char *exp; + + output = ddata->push_head > 0 ? &ddata->output_tmp : + &ddata->output; + + p_idx = output->size; + + if (!cpp_demangle_read_expression(ddata)) + return (0); + + if ((exp = vector_str_substr(output, p_idx, output->size - 1, + &exp_len)) == NULL) + return (0); + + idx = output->size; + for (i = p_idx; i < idx; ++i) { + if (!vector_str_pop(output)) { + free(exp); + return (0); + } + } + + *str = exp; + + return (1); +} + +static int cpp_demangle_read_expression_binary(struct cpp_demangle_data *ddata, const char *name, size_t len) { @@ -1419,12 +1505,67 @@ cpp_demangle_read_function(struct cpp_de static int cpp_demangle_read_encoding(struct cpp_demangle_data *ddata) { + char *name, *type, *num_str; + long offset; + int rtn; if (ddata == NULL || *ddata->cur == '\0') return (0); /* special name */ switch (SIMPLE_HASH(*ddata->cur, *(ddata->cur + 1))) { + case SIMPLE_HASH('G', 'A'): + if (!cpp_demangle_push_str(ddata, "hidden alias for ", 17)) + return (0); + ddata->cur += 2; + if (*ddata->cur == '\0') + return (0); + return (cpp_demangle_read_encoding(ddata)); + + case SIMPLE_HASH('G', 'R'): + if (!cpp_demangle_push_str(ddata, "reference temporary #", 21)) + return (0); + ddata->cur += 2; + if (*ddata->cur == '\0') + return (0); + if (!cpp_demangle_read_name_flat(ddata, &name)) + return (0); + rtn = 0; + if (!cpp_demangle_read_number_as_string(ddata, &num_str)) + goto clean1; + if (!cpp_demangle_push_str(ddata, num_str, strlen(num_str))) + goto clean2; + if (!cpp_demangle_push_str(ddata, " for ", 5)) + goto clean2; + if (!cpp_demangle_push_str(ddata, name, strlen(name))) + goto clean2; + rtn = 1; + clean2: + free(num_str); + clean1: + free(name); + return (rtn); + + case SIMPLE_HASH('G', 'T'): + ddata->cur += 2; + if (*ddata->cur == '\0') + return (0); + switch (*ddata->cur) { + case 'n': + if (!cpp_demangle_push_str(ddata, + "non-transaction clone for ", 26)) + return (0); + break; + case 't': + default: + if (!cpp_demangle_push_str(ddata, + "transaction clone for ", 22)) + return (0); + break; + } + ++ddata->cur; + return (cpp_demangle_read_encoding(ddata)); + case SIMPLE_HASH('G', 'V'): /* sentry object for 1 time init */ if (!cpp_demangle_push_str(ddata, "guard variable for ", 20)) @@ -1446,14 +1587,49 @@ cpp_demangle_read_encoding(struct cpp_de return (0); return (cpp_demangle_read_encoding(ddata)); + case SIMPLE_HASH('T', 'C'): + /* construction vtable */ + if (!cpp_demangle_push_str(ddata, "construction vtable for ", + 24)) + return (0); + ddata->cur += 2; + if (*ddata->cur == '\0') + return (0); + if (!cpp_demangle_read_type_flat(ddata, &type)) + return (0); + rtn = 0; + if (!cpp_demangle_read_number(ddata, &offset)) + goto clean3; + if (*ddata->cur++ != '_') + goto clean3; + if (!cpp_demangle_read_type(ddata, 0)) + goto clean3; + if (!cpp_demangle_push_str(ddata, "-in-", 4)) + goto clean3; + if (!cpp_demangle_push_str(ddata, type, strlen(type))) + goto clean3; + rtn = 1; + clean3: + free(type); + return (rtn); + case SIMPLE_HASH('T', 'D'): /* typeinfo common proxy */ break; + case SIMPLE_HASH('T', 'F'): + /* typeinfo fn */ + if (!cpp_demangle_push_str(ddata, "typeinfo fn for ", 16)) + return (0); + ddata->cur += 2; + if (*ddata->cur == '\0') + return (0); + return (cpp_demangle_read_type(ddata, 0)); + case SIMPLE_HASH('T', 'h'): /* virtual function non-virtual override thunk */ - if (cpp_demangle_push_str(ddata, - "virtual function non-virtual override ", 38) == 0) + if (!cpp_demangle_push_str(ddata, + "virtual function non-virtual override ", 38)) return (0); ddata->cur += 2; if (*ddata->cur == '\0') @@ -1462,24 +1638,51 @@ cpp_demangle_read_encoding(struct cpp_de return (0); return (cpp_demangle_read_encoding(ddata)); + case SIMPLE_HASH('T', 'H'): + /* TLS init function */ + if (!cpp_demangle_push_str(ddata, "TLS init function for ", + 22)) + return (0); + ddata->cur += 2; + if (*ddata->cur == '\0') + return (0); + break; + case SIMPLE_HASH('T', 'I'): /* typeinfo structure */ - /* FALLTHROUGH */ + if (!cpp_demangle_push_str(ddata, "typeinfo for ", 13)) + return (0); + ddata->cur += 2; + if (*ddata->cur == '\0') + return (0); + return (cpp_demangle_read_type(ddata, 0)); + + case SIMPLE_HASH('T', 'J'): + /* java class */ + if (!cpp_demangle_push_str(ddata, "java Class for ", 15)) + return (0); + ddata->cur += 2; + if (*ddata->cur == '\0') + return (0); + return (cpp_demangle_read_type(ddata, 0)); + case SIMPLE_HASH('T', 'S'): /* RTTI name (NTBS) */ - if (!cpp_demangle_push_str(ddata, "typeinfo for ", 14)) + if (!cpp_demangle_push_str(ddata, "typeinfo name for ", 18)) return (0); ddata->cur += 2; if (*ddata->cur == '\0') return (0); - return (cpp_demangle_read_type(ddata, 1)); + return (cpp_demangle_read_type(ddata, 0)); case SIMPLE_HASH('T', 'T'): /* VTT table */ if (!cpp_demangle_push_str(ddata, "VTT for ", 8)) return (0); ddata->cur += 2; - return (cpp_demangle_read_type(ddata, 1)); + if (*ddata->cur == '\0') + return (0); + return (cpp_demangle_read_type(ddata, 0)); case SIMPLE_HASH('T', 'v'): /* virtual function virtual override thunk */ @@ -1500,8 +1703,18 @@ cpp_demangle_read_encoding(struct cpp_de ddata->cur += 2; if (*ddata->cur == '\0') return (0); - return (cpp_demangle_read_type(ddata, 1)); - }; + return (cpp_demangle_read_type(ddata, 0)); + + case SIMPLE_HASH('T', 'W'): + /* TLS wrapper function */ + if (!cpp_demangle_push_str(ddata, "TLS wrapper function for ", + 25)) + return (0); + ddata->cur += 2; + if (*ddata->cur == '\0') + return (0); + break; + } return (cpp_demangle_read_name(ddata)); } @@ -1573,7 +1786,7 @@ cpp_demangle_read_name(struct cpp_demang return (cpp_demangle_read_nested_name(ddata)); case 'Z': return (cpp_demangle_read_local_name(ddata)); - }; + } if (!vector_str_init(&v)) return (0); @@ -1618,6 +1831,38 @@ clean: } static int +cpp_demangle_read_name_flat(struct cpp_demangle_data *ddata, char **str) +{ + struct vector_str *output; + size_t i, p_idx, idx, name_len; + char *name; + + output = ddata->push_head > 0 ? &ddata->output_tmp : + &ddata->output; + + p_idx = output->size; + + if (!cpp_demangle_read_name(ddata)) + return (0); + + if ((name = vector_str_substr(output, p_idx, output->size - 1, + &name_len)) == NULL) + return (0); + + idx = output->size; + for (i = p_idx; i < idx; ++i) { + if (!vector_str_pop(output)) { + free(name); + return (0); + } + } + + *str = name; + + return (1); +} + +static int cpp_demangle_read_nested_name(struct cpp_demangle_data *ddata) { struct vector_str *output, v; @@ -1642,7 +1887,7 @@ cpp_demangle_read_nested_name(struct cpp case 'K': ddata->mem_cst = true; break; - }; + } ++ddata->cur; } @@ -1670,7 +1915,7 @@ cpp_demangle_read_nested_name(struct cpp default: if (!cpp_demangle_read_uqname(ddata)) goto clean; - }; + } if ((subst_str = vector_str_substr(output, p_idx, output->size - 1, &subst_str_len)) == NULL) @@ -1743,6 +1988,24 @@ cpp_demangle_read_number(struct cpp_dema } static int +cpp_demangle_read_number_as_string(struct cpp_demangle_data *ddata, char **str) +{ + long n; + + if (!cpp_demangle_read_number(ddata, &n)) { + *str = NULL; + return (0); + } + + if (asprintf(str, "%ld", n) < 0) { + *str = NULL; + return (0); + } + + return (1); +} + +static int cpp_demangle_read_nv_offset(struct cpp_demangle_data *ddata) { @@ -1877,11 +2140,11 @@ cpp_demangle_read_sname(struct cpp_deman len <= 0) return (0); - if (len == 12 && (memcmp("_GLOBAL__N_1", ddata->cur, 12) == 0)) + if (len == 12 && (memcmp("_GLOBAL__N_1", ddata->cur, 12) == 0)) err = cpp_demangle_push_str(ddata, "(anonymous namespace)", 21); else err = cpp_demangle_push_str(ddata, ddata->cur, len); - + if (err == 0) return (0); @@ -1927,35 +2190,35 @@ cpp_demangle_read_subst(struct cpp_deman case SIMPLE_HASH('S', 'd'): /* std::basic_iostream > */ - if (!cpp_demangle_push_str(ddata, "std::iostream", 19)) + if (!cpp_demangle_push_str(ddata, "std::basic_iostream", 19)) return (0); - ddata->last_sname = "iostream"; + ddata->last_sname = "basic_iostream"; ddata->cur += 2; if (*ddata->cur == 'I') return (cpp_demangle_read_subst_stdtmpl(ddata, - "std::iostream", 19)); + "std::basic_iostream", 19)); return (1); case SIMPLE_HASH('S', 'i'): /* std::basic_istream > */ - if (!cpp_demangle_push_str(ddata, "std::istream", 18)) + if (!cpp_demangle_push_str(ddata, "std::basic_istream", 18)) return (0); - ddata->last_sname = "istream"; + ddata->last_sname = "basic_istream"; ddata->cur += 2; if (*ddata->cur == 'I') return (cpp_demangle_read_subst_stdtmpl(ddata, - "std::istream", 18)); + "std::basic_istream", 18)); return (1); case SIMPLE_HASH('S', 'o'): /* std::basic_ostream > */ - if (!cpp_demangle_push_str(ddata, "std::ostream", 18)) + if (!cpp_demangle_push_str(ddata, "std::basic_ostream", 18)) return (0); - ddata->last_sname = "istream"; + ddata->last_sname = "basic_ostream"; ddata->cur += 2; if (*ddata->cur == 'I') return (cpp_demangle_read_subst_stdtmpl(ddata, - "std::ostream", 18)); + "std::basic_ostream", 18)); return (1); case SIMPLE_HASH('S', 's'): @@ -1977,7 +2240,7 @@ cpp_demangle_read_subst(struct cpp_deman case SIMPLE_HASH('S', 't'): /* std:: */ return (cpp_demangle_read_subst_std(ddata)); - }; + } if (*(++ddata->cur) == '\0') return (0); @@ -2125,7 +2388,7 @@ cpp_demangle_read_tmpl_arg(struct cpp_de return (cpp_demangle_read_expr_primary(ddata)); case 'X': return (cpp_demangle_read_expression(ddata)); - }; + } return (cpp_demangle_read_type(ddata, 0)); } @@ -2232,7 +2495,7 @@ cpp_demangle_read_type(struct cpp_demang size_t p_idx, type_str_len; int extern_c, is_builtin; long len; - char *type_str; + char *type_str, *exp_str, *num_str; if (ddata == NULL) return (0); @@ -2274,7 +2537,7 @@ cpp_demangle_read_type(struct cpp_demang extern_c = 0; is_builtin = 1; p_idx = output->size; - type_str = NULL; + type_str = exp_str = num_str = NULL; again: /* builtin type */ switch (*ddata->cur) { @@ -2320,6 +2583,82 @@ again: ++ddata->cur; goto rtn; + case 'D': + ++ddata->cur; + switch (*ddata->cur) { + case 'd': + /* IEEE 754r decimal floating point (64 bits) */ + if (!cpp_demangle_push_str(ddata, "decimal64", 9)) + goto clean; + ++ddata->cur; + break; + case 'e': + /* IEEE 754r decimal floating point (128 bits) */ + if (!cpp_demangle_push_str(ddata, "decimal128", 10)) + goto clean; + ++ddata->cur; + break; + case 'f': + /* IEEE 754r decimal floating point (32 bits) */ + if (!cpp_demangle_push_str(ddata, "decimal32", 9)) + goto clean; + ++ddata->cur; + break; + case 'h': + /* IEEE 754r half-precision floating point (16 bits) */ + if (!cpp_demangle_push_str(ddata, "half", 4)) + goto clean; + ++ddata->cur; + break; + case 'i': + /* char32_t */ + if (!cpp_demangle_push_str(ddata, "char32_t", 8)) + goto clean; + ++ddata->cur; + break; + case 'n': + /* std::nullptr_t (i.e., decltype(nullptr)) */ + if (!cpp_demangle_push_str(ddata, "decltype(nullptr)", + 17)) + goto clean; + ++ddata->cur; + break; + case 's': + /* char16_t */ + if (!cpp_demangle_push_str(ddata, "char16_t", 8)) + goto clean; + ++ddata->cur; + break; + case 'v': + /* gcc vector_size extension. */ + ++ddata->cur; + if (*ddata->cur == '_') { + ++ddata->cur; + if (!cpp_demangle_read_expression_flat(ddata, + &exp_str)) + goto clean; + if (!vector_str_push(&v.ext_name, exp_str, + strlen(exp_str))) + goto clean; + } else { + if (!cpp_demangle_read_number_as_string(ddata, + &num_str)) + goto clean; + if (!vector_str_push(&v.ext_name, num_str, + strlen(num_str))) + goto clean; + } + if (*ddata->cur != '_') + goto clean; + ++ddata->cur; + if (!vector_type_qualifier_push(&v, TYPE_VEC)) + goto clean; + goto again; + default: + goto clean; + } + goto rtn; + case 'e': /* long double */ if (!cpp_demangle_push_str(ddata, "long double", 11)) @@ -2414,7 +2753,7 @@ again: case 'o': /* unsigned __int128 */ - if (!cpp_demangle_push_str(ddata, "unsigned _;int128", 17)) + if (!cpp_demangle_push_str(ddata, "unsigned __int128", 17)) goto clean; ++ddata->cur; goto rtn; @@ -2485,6 +2824,8 @@ again: if (!vector_str_push(&v.ext_name, ddata->cur, len)) return (0); ddata->cur += len; + if (!vector_type_qualifier_push(&v, TYPE_EXT)) + goto clean; goto again; case 'v': @@ -2503,7 +2844,7 @@ again: case 'w': /* wchar_t */ - if (!cpp_demangle_push_str(ddata, "wchar_t", 6)) + if (!cpp_demangle_push_str(ddata, "wchar_t", 7)) goto clean; ++ddata->cur; goto rtn; @@ -2524,11 +2865,11 @@ again: case 'z': /* ellipsis */ - if (!cpp_demangle_push_str(ddata, "ellipsis", 8)) + if (!cpp_demangle_push_str(ddata, "...", 3)) goto clean; ++ddata->cur; goto rtn; - }; + } if (!cpp_demangle_read_name(ddata)) goto clean; @@ -2549,6 +2890,8 @@ rtn: goto clean; free(type_str); + free(exp_str); + free(num_str); vector_type_qualifier_dest(&v); if (ddata->push_head > 0) { @@ -2580,11 +2923,45 @@ rtn: return (1); clean: free(type_str); + free(exp_str); + free(num_str); vector_type_qualifier_dest(&v); return (0); } +static int +cpp_demangle_read_type_flat(struct cpp_demangle_data *ddata, char **str) +{ + struct vector_str *output; + size_t i, p_idx, idx, type_len; + char *type; + + output = ddata->push_head > 0 ? &ddata->output_tmp : + &ddata->output; + + p_idx = output->size; + + if (!cpp_demangle_read_type(ddata, 0)) + return (0); + + if ((type = vector_str_substr(output, p_idx, output->size - 1, + &type_len)) == NULL) + return (0); + + idx = output->size; + for (i = p_idx; i < idx; ++i) { + if (!vector_str_pop(output)) { + free(type); + return (0); + } + } + + *str = type; + + return (1); +} + /* *** DIFF OUTPUT TRUNCATED AT 1000 LINES ***