m_options.c revision 180a7500bf2464d5b16cddb5618b91fb3f095998
132824028b51461062a5a282bfd775d4bd4ad6a47sewardj 232824028b51461062a5a282bfd775d4bd4ad6a47sewardj/*--------------------------------------------------------------------*/ 3b1cc5d666cc8f8065419e4a8c819ed0b8256a764njn/*--- Command line options. m_options.c ---*/ 432824028b51461062a5a282bfd775d4bd4ad6a47sewardj/*--------------------------------------------------------------------*/ 532824028b51461062a5a282bfd775d4bd4ad6a47sewardj 632824028b51461062a5a282bfd775d4bd4ad6a47sewardj/* 732824028b51461062a5a282bfd775d4bd4ad6a47sewardj This file is part of Valgrind, a dynamic binary instrumentation 832824028b51461062a5a282bfd775d4bd4ad6a47sewardj framework. 932824028b51461062a5a282bfd775d4bd4ad6a47sewardj 100f157ddb404bcde7815a1c5bf2d7e41c114f3d73sewardj Copyright (C) 2000-2013 Nicholas Nethercote 1132824028b51461062a5a282bfd775d4bd4ad6a47sewardj njn@valgrind.org 1232824028b51461062a5a282bfd775d4bd4ad6a47sewardj 1332824028b51461062a5a282bfd775d4bd4ad6a47sewardj This program is free software; you can redistribute it and/or 1432824028b51461062a5a282bfd775d4bd4ad6a47sewardj modify it under the terms of the GNU General Public License as 1532824028b51461062a5a282bfd775d4bd4ad6a47sewardj published by the Free Software Foundation; either version 2 of the 1632824028b51461062a5a282bfd775d4bd4ad6a47sewardj License, or (at your option) any later version. 1732824028b51461062a5a282bfd775d4bd4ad6a47sewardj 1832824028b51461062a5a282bfd775d4bd4ad6a47sewardj This program is distributed in the hope that it will be useful, but 1932824028b51461062a5a282bfd775d4bd4ad6a47sewardj WITHOUT ANY WARRANTY; without even the implied warranty of 2032824028b51461062a5a282bfd775d4bd4ad6a47sewardj MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 2132824028b51461062a5a282bfd775d4bd4ad6a47sewardj General Public License for more details. 2232824028b51461062a5a282bfd775d4bd4ad6a47sewardj 2332824028b51461062a5a282bfd775d4bd4ad6a47sewardj You should have received a copy of the GNU General Public License 2432824028b51461062a5a282bfd775d4bd4ad6a47sewardj along with this program; if not, write to the Free Software 2532824028b51461062a5a282bfd775d4bd4ad6a47sewardj Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 2632824028b51461062a5a282bfd775d4bd4ad6a47sewardj 02111-1307, USA. 2732824028b51461062a5a282bfd775d4bd4ad6a47sewardj 2832824028b51461062a5a282bfd775d4bd4ad6a47sewardj The GNU General Public License is contained in the file COPYING. 2932824028b51461062a5a282bfd775d4bd4ad6a47sewardj*/ 3032824028b51461062a5a282bfd775d4bd4ad6a47sewardj 31c7561b931e249acf3768ead77638545b0ccaa8f1njn#include "pub_core_basics.h" 32374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn#include "pub_core_vki.h" 33a3506d39c8c94f09837558d33c54b110e1ac0ea1njn#include "pub_core_options.h" 346893d65852940741dbebbc6ba1480e89cf34e30fsewardj#include "pub_core_libcassert.h" 35374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn#include "pub_core_libcbase.h" 36374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn#include "pub_core_libcfile.h" 376893d65852940741dbebbc6ba1480e89cf34e30fsewardj#include "pub_core_libcprint.h" 38374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn#include "pub_core_libcproc.h" 39374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn#include "pub_core_mallocfree.h" 40064212709dc8988a48d2cbde5b90528952d8cd74sewardj#include "pub_core_seqmatch.h" // VG_(string_match) 4132824028b51461062a5a282bfd775d4bd4ad6a47sewardj 42a3506d39c8c94f09837558d33c54b110e1ac0ea1njn// See pub_{core,tool}_options.h for explanations of all these. 43a3506d39c8c94f09837558d33c54b110e1ac0ea1njn 44a3506d39c8c94f09837558d33c54b110e1ac0ea1njn 45a3506d39c8c94f09837558d33c54b110e1ac0ea1njn/* Define, and set defaults. */ 46a3506d39c8c94f09837558d33c54b110e1ac0ea1njnVexControl VG_(clo_vex_control); 47a3506d39c8c94f09837558d33c54b110e1ac0ea1njnBool VG_(clo_error_limit) = True; 48b9779088c43db2a576ae43bde0694411c036b1c4sewardjInt VG_(clo_error_exitcode) = 0; 490ba37c90c4674515da387b30a6e5f23fa75a173csewardj 509c6b05db45362b1afb981aa8298ab12ab4027b1adejanj#if defined(VGPV_arm_linux_android) || defined(VGPV_x86_linux_android) \ 51f0c1250e324f6684757c6a15545366447ef1d64fsewardj || defined(VGPV_mips32_linux_android) \ 52f0c1250e324f6684757c6a15545366447ef1d64fsewardj || defined(VGP_arm64_linux) // temporarily disabled on arm64-linux 53deddfdfbd13203804737b95b6bf5861f758ac865sewardjVgVgdb VG_(clo_vgdb) = Vg_VgdbNo; // currently disabled on Android 54deddfdfbd13203804737b95b6bf5861f758ac865sewardj#else 550ba37c90c4674515da387b30a6e5f23fa75a173csewardjVgVgdb VG_(clo_vgdb) = Vg_VgdbYes; 56deddfdfbd13203804737b95b6bf5861f758ac865sewardj#endif 573b290486cd4cd601b20e04340e593c9ed9717e5fsewardjInt VG_(clo_vgdb_poll) = 5000; 583b290486cd4cd601b20e04340e593c9ed9717e5fsewardjInt VG_(clo_vgdb_error) = 999999999; 59180a7500bf2464d5b16cddb5618b91fb3f095998philippeUInt VG_(clo_vgdb_stop_at) = 0; 60cffe2a55d903655761ccc6025a23b823bee10170philippeconst HChar *VG_(clo_vgdb_prefix) = NULL; 61cffe2a55d903655761ccc6025a23b823bee10170philippeconst HChar *VG_(arg_vgdb_prefix) = NULL; 623b290486cd4cd601b20e04340e593c9ed9717e5fsewardjBool VG_(clo_vgdb_shadow_registers) = False; 630ba37c90c4674515da387b30a6e5f23fa75a173csewardj 64a3506d39c8c94f09837558d33c54b110e1ac0ea1njnBool VG_(clo_db_attach) = False; 6519f91bbaedb4caef8a60ce94b0f507193cc0bc10florianconst HChar* VG_(clo_db_command) = GDB_PATH " -nw %f %p"; 66a3506d39c8c94f09837558d33c54b110e1ac0ea1njnInt VG_(clo_gen_suppressions) = 0; 67a3506d39c8c94f09837558d33c54b110e1ac0ea1njnInt VG_(clo_sanity_level) = 1; 68a3506d39c8c94f09837558d33c54b110e1ac0ea1njnInt VG_(clo_verbosity) = 1; 692d9e874b7a628ada216f09cc4f065798c65fffa4sewardjBool VG_(clo_stats) = False; 7071bc3cbb1b6da72fe1d3a9fea90e53847c5b0a6fsewardjBool VG_(clo_xml) = False; 7119f91bbaedb4caef8a60ce94b0f507193cc0bc10florianconst HChar* VG_(clo_xml_user_comment) = NULL; 72a3506d39c8c94f09837558d33c54b110e1ac0ea1njnBool VG_(clo_demangle) = True; 7319f91bbaedb4caef8a60ce94b0f507193cc0bc10florianconst HChar* VG_(clo_soname_synonyms) = NULL; 74a3506d39c8c94f09837558d33c54b110e1ac0ea1njnBool VG_(clo_trace_children) = False; 7519f91bbaedb4caef8a60ce94b0f507193cc0bc10florianconst HChar* VG_(clo_trace_children_skip) = NULL; 7619f91bbaedb4caef8a60ce94b0f507193cc0bc10florianconst HChar* VG_(clo_trace_children_skip_by_arg) = NULL; 776e31f80899f1c79a54f164955069f3f74fe8b7e2sewardjBool VG_(clo_child_silent_after_fork) = False; 7819f91bbaedb4caef8a60ce94b0f507193cc0bc10florianHChar* VG_(clo_log_fname_expanded) = NULL; 7919f91bbaedb4caef8a60ce94b0f507193cc0bc10florianHChar* VG_(clo_xml_fname_expanded) = NULL; 80a3506d39c8c94f09837558d33c54b110e1ac0ea1njnBool VG_(clo_time_stamp) = False; 81a3506d39c8c94f09837558d33c54b110e1ac0ea1njnInt VG_(clo_input_fd) = 0; /* stdin */ 82a3506d39c8c94f09837558d33c54b110e1ac0ea1njnInt VG_(clo_n_suppressions) = 0; 8319f91bbaedb4caef8a60ce94b0f507193cc0bc10florianconst HChar* VG_(clo_suppressions)[VG_CLO_MAX_SFILES]; 8414cdbf8f4ac7e49de2bced6546f7867b2e0655f0sewardjInt VG_(clo_n_fullpath_after) = 0; 8519f91bbaedb4caef8a60ce94b0f507193cc0bc10florianconst HChar* VG_(clo_fullpath_after)[VG_CLO_MAX_FULLPATH_AFTER]; 8671826f77dbaefb6a9c694d9711aa649ed0980cc7sewardjconst HChar* VG_(clo_extra_debuginfo_path) = NULL; 875d616dfbb8439dfd51a40ddf1dba970938baa1ebsewardjconst HChar* VG_(clo_debuginfo_server) = NULL; 885d616dfbb8439dfd51a40ddf1dba970938baa1ebsewardjBool VG_(clo_allow_mismatched_debuginfo) = False; 89a3506d39c8c94f09837558d33c54b110e1ac0ea1njnUChar VG_(clo_trace_flags) = 0; // 00000000b 9017c5e2e3a2f48970063ea43a9abee3e11c72cb04sewardjBool VG_(clo_profyle_sbs) = False; 9117c5e2e3a2f48970063ea43a9abee3e11c72cb04sewardjUChar VG_(clo_profyle_flags) = 0; // 00000000b 9217c5e2e3a2f48970063ea43a9abee3e11c72cb04sewardjULong VG_(clo_profyle_interval) = 0; 9329e022d85378cd303e00c1ec7a8dd60aaed9145aflorianInt VG_(clo_trace_notbelow) = -1; // unspecified 9429e022d85378cd303e00c1ec7a8dd60aaed9145aflorianInt VG_(clo_trace_notabove) = -1; // unspecified 95a3506d39c8c94f09837558d33c54b110e1ac0ea1njnBool VG_(clo_trace_syscalls) = False; 96a3506d39c8c94f09837558d33c54b110e1ac0ea1njnBool VG_(clo_trace_signals) = False; 97a3506d39c8c94f09837558d33c54b110e1ac0ea1njnBool VG_(clo_trace_symtab) = False; 9819f91bbaedb4caef8a60ce94b0f507193cc0bc10florianconst HChar* VG_(clo_trace_symtab_patt) = "*"; 99a3506d39c8c94f09837558d33c54b110e1ac0ea1njnBool VG_(clo_trace_cfi) = False; 100f767d967b9ef331dcd7d0cd4584f6570cd829333sewardjBool VG_(clo_debug_dump_syms) = False; 101f767d967b9ef331dcd7d0cd4584f6570cd829333sewardjBool VG_(clo_debug_dump_line) = False; 102f767d967b9ef331dcd7d0cd4584f6570cd829333sewardjBool VG_(clo_debug_dump_frames) = False; 103a3506d39c8c94f09837558d33c54b110e1ac0ea1njnBool VG_(clo_trace_redir) = False; 10478bfc711d3e684c76eeab5f89a94a78d40ed6f4bbartenum FairSchedType 10578bfc711d3e684c76eeab5f89a94a78d40ed6f4bbart VG_(clo_fair_sched) = disable_fair_sched; 106a3506d39c8c94f09837558d33c54b110e1ac0ea1njnBool VG_(clo_trace_sched) = False; 1079c606bd8634cd6b67bb41fa645b5c639668cfa2dsewardjBool VG_(clo_profile_heap) = False; 108d99c26a4bc18fd3b17c4626c9c1fbd1583388660philippeInt VG_(clo_core_redzone_size) = CORE_REDZONE_DEFAULT_SZB; 109d99c26a4bc18fd3b17c4626c9c1fbd1583388660philippe// A value != -1 overrides the tool-specific value 110d99c26a4bc18fd3b17c4626c9c1fbd1583388660philippe// VG_(needs_malloc_replacement).tool_client_redzone_szB 111d99c26a4bc18fd3b17c4626c9c1fbd1583388660philippeInt VG_(clo_redzone_size) = -1; 112a3506d39c8c94f09837558d33c54b110e1ac0ea1njnInt VG_(clo_dump_error) = 0; 113a3506d39c8c94f09837558d33c54b110e1ac0ea1njnInt VG_(clo_backtrace_size) = 12; 11446207652a0c99a2c8b0f05eafce3ca3ec533c121philippeInt VG_(clo_merge_recursive_frames) = 0; // default value: no merge 11519f91bbaedb4caef8a60ce94b0f507193cc0bc10florianconst HChar* VG_(clo_sim_hints) = NULL; 11641ded2cf9711091a1bc7a6c1dd2d177e978b05e9sewardjBool VG_(clo_sym_offsets) = False; 117b8b79addf04dd5d0b558916e26df0b1927cbd758sewardjBool VG_(clo_read_var_info) = False; 118f9ebc3956087ce01561c4ab3faf5a8983b0f7c1csewardjInt VG_(clo_n_req_tsyms) = 0; 11919f91bbaedb4caef8a60ce94b0f507193cc0bc10florianconst HChar* VG_(clo_req_tsyms)[VG_CLO_MAX_REQ_TSYMS]; 120f9ebc3956087ce01561c4ab3faf5a8983b0f7c1csewardjHChar* VG_(clo_require_text_symbol) = NULL; 121a3506d39c8c94f09837558d33c54b110e1ac0ea1njnBool VG_(clo_run_libc_freeres) = True; 122a3506d39c8c94f09837558d33c54b110e1ac0ea1njnBool VG_(clo_track_fds) = False; 123a3506d39c8c94f09837558d33c54b110e1ac0ea1njnBool VG_(clo_show_below_main)= False; 124a3506d39c8c94f09837558d33c54b110e1ac0ea1njnBool VG_(clo_show_emwarns) = False; 12591b470c367836f65177413ca2a19b25f32fb8ef0sewardjWord VG_(clo_max_stackframe) = 2000000; 12695d86c091a218e904e912354efa4f952a9712e82sewardjWord VG_(clo_main_stacksize) = 0; /* use client's rlimit.stack */ 127a3506d39c8c94f09837558d33c54b110e1ac0ea1njnBool VG_(clo_wait_for_gdb) = False; 1286c3a219727dead14309abf431f72ca1f99b8ca37sewardjVgSmc VG_(clo_smc_check) = Vg_SmcStack; 12919f91bbaedb4caef8a60ce94b0f507193cc0bc10florianconst HChar* VG_(clo_kernel_variant) = NULL; 13097db761d2a94fc7a349aee9359ef85828d9618b6njnBool VG_(clo_dsymutil) = False; 131c30cd9bdc3c13c79a2e0281302b115c3d220bc9dsewardjBool VG_(clo_sigill_diag) = True; 13249984eadbda78d8edea43f7839f4651a04ca419asewardjUInt VG_(clo_unw_stack_scan_thresh) = 0; /* disabled by default */ 13349984eadbda78d8edea43f7839f4651a04ca419asewardjUInt VG_(clo_unw_stack_scan_frames) = 5; 13449984eadbda78d8edea43f7839f4651a04ca419asewardj 13532824028b51461062a5a282bfd775d4bd4ad6a47sewardj 1366893d65852940741dbebbc6ba1480e89cf34e30fsewardj/*====================================================================*/ 137b1cc5d666cc8f8065419e4a8c819ed0b8256a764njn/*=== File expansion ===*/ 1386893d65852940741dbebbc6ba1480e89cf34e30fsewardj/*====================================================================*/ 1396893d65852940741dbebbc6ba1480e89cf34e30fsewardj 140374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn// Copies the string, prepending it with the startup working directory, and 141374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn// expanding %p and %q entries. Returns a new, malloc'd string. 14219f91bbaedb4caef8a60ce94b0f507193cc0bc10florianHChar* VG_(expand_file_name)(const HChar* option_name, const HChar* format) 143374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn{ 14419f91bbaedb4caef8a60ce94b0f507193cc0bc10florian static HChar base_dir[VKI_PATH_MAX]; 145374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn Int len, i = 0, j = 0; 14619f91bbaedb4caef8a60ce94b0f507193cc0bc10florian HChar* out; 147374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn 148374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn Bool ok = VG_(get_startup_wd)(base_dir, VKI_PATH_MAX); 149374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn tl_assert(ok); 150374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn 151374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn if (VG_STREQ(format, "")) { 152374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn // Empty name, bad. 153b1cc5d666cc8f8065419e4a8c819ed0b8256a764njn VG_(fmsg)("%s: filename is empty", option_name); 1545542d8f5047c4f59ed60e72c2d0f1b1d4d149ea8njn goto bad; 1555542d8f5047c4f59ed60e72c2d0f1b1d4d149ea8njn } 1565542d8f5047c4f59ed60e72c2d0f1b1d4d149ea8njn 1575542d8f5047c4f59ed60e72c2d0f1b1d4d149ea8njn // If 'format' starts with a '~', abort -- the user probably expected the 1585542d8f5047c4f59ed60e72c2d0f1b1d4d149ea8njn // shell to expand but it didn't (see bug 195268 for details). This means 1595542d8f5047c4f59ed60e72c2d0f1b1d4d149ea8njn // that we don't allow a legitimate filename beginning with '~' but that 1605542d8f5047c4f59ed60e72c2d0f1b1d4d149ea8njn // seems very unlikely. 1615542d8f5047c4f59ed60e72c2d0f1b1d4d149ea8njn if (format[0] == '~') { 162b1cc5d666cc8f8065419e4a8c819ed0b8256a764njn VG_(fmsg)( 163b1cc5d666cc8f8065419e4a8c819ed0b8256a764njn "%s: filename begins with '~'\n" 164b1cc5d666cc8f8065419e4a8c819ed0b8256a764njn "You probably expected the shell to expand the '~', but it\n" 165b1cc5d666cc8f8065419e4a8c819ed0b8256a764njn "didn't. The rules for '~'-expansion vary from shell to shell.\n" 166b1cc5d666cc8f8065419e4a8c819ed0b8256a764njn "You might have more luck using $HOME instead.\n", 167b1cc5d666cc8f8065419e4a8c819ed0b8256a764njn option_name 168b1cc5d666cc8f8065419e4a8c819ed0b8256a764njn ); 169374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn goto bad; 170374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn } 171374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn 1723e172748981d06fff6b14aaebbabcca898553e98florian len = VG_(strlen)(format) + 1; 1739c606bd8634cd6b67bb41fa645b5c639668cfa2dsewardj out = VG_(malloc)( "options.efn.1", len ); 174374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn 175374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn#define ENSURE_THIS_MUCH_SPACE(x) \ 176374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn if (j + x >= len) { \ 177374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn len += (10 + x); \ 1789c606bd8634cd6b67bb41fa645b5c639668cfa2dsewardj out = VG_(realloc)("options.efn.2(multiple)", out, len); \ 179374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn } 180374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn 181374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn while (format[i]) { 182374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn if (format[i] != '%') { 183374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn ENSURE_THIS_MUCH_SPACE(1); 184374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn out[j++] = format[i++]; 185374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn 186374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn } else { 187374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn // We saw a '%'. What's next... 188374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn i++; 189374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn if ('%' == format[i]) { 190374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn // Replace '%%' with '%'. 191374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn ENSURE_THIS_MUCH_SPACE(1); 192374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn out[j++] = format[i++]; 193374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn } 194374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn else if ('p' == format[i]) { 195374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn // Print the PID. Assume that it's not longer than 10 chars -- 196374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn // reasonable since 'pid' is an Int (ie. 32 bits). 197374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn Int pid = VG_(getpid)(); 198374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn ENSURE_THIS_MUCH_SPACE(10); 199374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn j += VG_(sprintf)(&out[j], "%d", pid); 200374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn i++; 201374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn } 2022dd08f575042c604cebf32f2c2002a0fba0ed800njn else if ('q' == format[i]) { 2032dd08f575042c604cebf32f2c2002a0fba0ed800njn i++; 2042dd08f575042c604cebf32f2c2002a0fba0ed800njn if ('{' == format[i]) { 2052dd08f575042c604cebf32f2c2002a0fba0ed800njn // Get the env var name, print its contents. 20619f91bbaedb4caef8a60ce94b0f507193cc0bc10florian const HChar* qualname; 20719f91bbaedb4caef8a60ce94b0f507193cc0bc10florian HChar* qual; 2082dd08f575042c604cebf32f2c2002a0fba0ed800njn i++; 2092dd08f575042c604cebf32f2c2002a0fba0ed800njn qualname = &format[i]; 2102dd08f575042c604cebf32f2c2002a0fba0ed800njn while (True) { 2112dd08f575042c604cebf32f2c2002a0fba0ed800njn if (0 == format[i]) { 212b1cc5d666cc8f8065419e4a8c819ed0b8256a764njn VG_(fmsg)("%s: malformed %%q specifier\n", option_name); 213374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn goto bad; 2142dd08f575042c604cebf32f2c2002a0fba0ed800njn } else if ('}' == format[i]) { 2152dd08f575042c604cebf32f2c2002a0fba0ed800njn // Temporarily replace the '}' with NUL to extract var 2162dd08f575042c604cebf32f2c2002a0fba0ed800njn // name. 217cfea784f4432d0ec79e9360ad324b820faada649florian // FIXME: this is not safe as FORMAT is sometimes a 218cfea784f4432d0ec79e9360ad324b820faada649florian // string literal which may reside in read-only memory 21919f91bbaedb4caef8a60ce94b0f507193cc0bc10florian ((HChar *)format)[i] = 0; 2202dd08f575042c604cebf32f2c2002a0fba0ed800njn qual = VG_(getenv)(qualname); 2212dd08f575042c604cebf32f2c2002a0fba0ed800njn if (NULL == qual) { 222b1cc5d666cc8f8065419e4a8c819ed0b8256a764njn VG_(fmsg)("%s: environment variable %s is not set\n", 223b1cc5d666cc8f8065419e4a8c819ed0b8256a764njn option_name, qualname); 22419f91bbaedb4caef8a60ce94b0f507193cc0bc10florian // FIXME: this is not safe as FORMAT is sometimes a 22519f91bbaedb4caef8a60ce94b0f507193cc0bc10florian // string literal which may reside in read-only memory 22619f91bbaedb4caef8a60ce94b0f507193cc0bc10florian ((HChar *)format)[i] = '}'; // Put the '}' back. 2272dd08f575042c604cebf32f2c2002a0fba0ed800njn goto bad; 2282dd08f575042c604cebf32f2c2002a0fba0ed800njn } 22919f91bbaedb4caef8a60ce94b0f507193cc0bc10florian // FIXME: this is not safe as FORMAT is sometimes a 23019f91bbaedb4caef8a60ce94b0f507193cc0bc10florian // string literal which may reside in read-only memory 23119f91bbaedb4caef8a60ce94b0f507193cc0bc10florian ((HChar *)format)[i] = '}'; // Put the '}' back. 2322dd08f575042c604cebf32f2c2002a0fba0ed800njn i++; 2332dd08f575042c604cebf32f2c2002a0fba0ed800njn break; 234374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn } 235374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn i++; 236374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn } 2372dd08f575042c604cebf32f2c2002a0fba0ed800njn ENSURE_THIS_MUCH_SPACE(VG_(strlen)(qual)); 2382dd08f575042c604cebf32f2c2002a0fba0ed800njn j += VG_(sprintf)(&out[j], "%s", qual); 2392dd08f575042c604cebf32f2c2002a0fba0ed800njn } else { 240b1cc5d666cc8f8065419e4a8c819ed0b8256a764njn VG_(fmsg)("%s: expected '{' after '%%q'\n", option_name); 2412dd08f575042c604cebf32f2c2002a0fba0ed800njn goto bad; 242374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn } 243374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn } 244374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn else { 245374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn // Something else, abort. 246b1cc5d666cc8f8065419e4a8c819ed0b8256a764njn VG_(fmsg)("%s: expected 'p' or 'q' or '%%' after '%%'\n", 247b1cc5d666cc8f8065419e4a8c819ed0b8256a764njn option_name); 248374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn goto bad; 249374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn } 250374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn } 251374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn } 252374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn ENSURE_THIS_MUCH_SPACE(1); 253374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn out[j++] = 0; 254374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn 2553e172748981d06fff6b14aaebbabcca898553e98florian // If 'out' is not an absolute path name, prefix it with the startup dir. 2563e172748981d06fff6b14aaebbabcca898553e98florian if (out[0] != '/') { 2573e172748981d06fff6b14aaebbabcca898553e98florian len = VG_(strlen)(base_dir) + 1 + VG_(strlen)(out) + 1; 2583e172748981d06fff6b14aaebbabcca898553e98florian 2593e172748981d06fff6b14aaebbabcca898553e98florian HChar *absout = VG_(malloc)("options.efn.4", len); 2603e172748981d06fff6b14aaebbabcca898553e98florian VG_(strcpy)(absout, base_dir); 2613e172748981d06fff6b14aaebbabcca898553e98florian VG_(strcat)(absout, "/"); 2623e172748981d06fff6b14aaebbabcca898553e98florian VG_(strcat)(absout, out); 2633e172748981d06fff6b14aaebbabcca898553e98florian VG_(free)(out); 2643e172748981d06fff6b14aaebbabcca898553e98florian out = absout; 2653e172748981d06fff6b14aaebbabcca898553e98florian } 2663e172748981d06fff6b14aaebbabcca898553e98florian 267374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn return out; 268374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn 269374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn bad: { 27019f91bbaedb4caef8a60ce94b0f507193cc0bc10florian HChar* opt = // 2: 1 for the '=', 1 for the NUL. 2719c606bd8634cd6b67bb41fa645b5c639668cfa2dsewardj VG_(malloc)( "options.efn.3", 2729c606bd8634cd6b67bb41fa645b5c639668cfa2dsewardj VG_(strlen)(option_name) + VG_(strlen)(format) + 2 ); 273374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn VG_(strcpy)(opt, option_name); 274374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn VG_(strcat)(opt, "="); 275374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn VG_(strcat)(opt, format); 276b1cc5d666cc8f8065419e4a8c819ed0b8256a764njn VG_(fmsg_bad_option)(opt, ""); 277374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn } 278374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn} 279374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn 280064212709dc8988a48d2cbde5b90528952d8cd74sewardj/*====================================================================*/ 281064212709dc8988a48d2cbde5b90528952d8cd74sewardj/*=== --trace-children= support ===*/ 282064212709dc8988a48d2cbde5b90528952d8cd74sewardj/*====================================================================*/ 283064212709dc8988a48d2cbde5b90528952d8cd74sewardj 284064212709dc8988a48d2cbde5b90528952d8cd74sewardjstatic HChar const* consume_commas ( HChar const* c ) { 285064212709dc8988a48d2cbde5b90528952d8cd74sewardj while (*c && *c == ',') { 286064212709dc8988a48d2cbde5b90528952d8cd74sewardj ++c; 287064212709dc8988a48d2cbde5b90528952d8cd74sewardj } 288064212709dc8988a48d2cbde5b90528952d8cd74sewardj return c; 289064212709dc8988a48d2cbde5b90528952d8cd74sewardj} 290064212709dc8988a48d2cbde5b90528952d8cd74sewardj 291064212709dc8988a48d2cbde5b90528952d8cd74sewardjstatic HChar const* consume_field ( HChar const* c ) { 292064212709dc8988a48d2cbde5b90528952d8cd74sewardj while (*c && *c != ',') { 293064212709dc8988a48d2cbde5b90528952d8cd74sewardj ++c; 294064212709dc8988a48d2cbde5b90528952d8cd74sewardj } 295064212709dc8988a48d2cbde5b90528952d8cd74sewardj return c; 296064212709dc8988a48d2cbde5b90528952d8cd74sewardj} 297064212709dc8988a48d2cbde5b90528952d8cd74sewardj 298064212709dc8988a48d2cbde5b90528952d8cd74sewardj/* Should we trace into this child executable (across execve etc) ? 2999ab64a4d3043c251561419d0e0f51492172b1072sewardj This involves considering --trace-children=, 3009ab64a4d3043c251561419d0e0f51492172b1072sewardj --trace-children-skip=, --trace-children-skip-by-arg=, and the name 3019ab64a4d3043c251561419d0e0f51492172b1072sewardj of the executable. 'child_argv' must not include the name of the 3029ab64a4d3043c251561419d0e0f51492172b1072sewardj executable itself; iow child_argv[0] must be the first arg, if any, 3039ab64a4d3043c251561419d0e0f51492172b1072sewardj for the child. */ 3049ab64a4d3043c251561419d0e0f51492172b1072sewardjBool VG_(should_we_trace_this_child) ( HChar* child_exe_name, 3059ab64a4d3043c251561419d0e0f51492172b1072sewardj HChar** child_argv ) 306064212709dc8988a48d2cbde5b90528952d8cd74sewardj{ 307064212709dc8988a48d2cbde5b90528952d8cd74sewardj // child_exe_name is pulled out of the guest's space. We 308064212709dc8988a48d2cbde5b90528952d8cd74sewardj // should be at least marginally cautious with it, lest it 309064212709dc8988a48d2cbde5b90528952d8cd74sewardj // explode or burst into flames unexpectedly. 310064212709dc8988a48d2cbde5b90528952d8cd74sewardj if (child_exe_name == NULL || VG_(strlen)(child_exe_name) == 0) 311064212709dc8988a48d2cbde5b90528952d8cd74sewardj return VG_(clo_trace_children); // we know narfink 312064212709dc8988a48d2cbde5b90528952d8cd74sewardj 313064212709dc8988a48d2cbde5b90528952d8cd74sewardj // If --trace-children=no, the answer is simply NO. 314064212709dc8988a48d2cbde5b90528952d8cd74sewardj if (! VG_(clo_trace_children)) 315064212709dc8988a48d2cbde5b90528952d8cd74sewardj return False; 316064212709dc8988a48d2cbde5b90528952d8cd74sewardj 3179ab64a4d3043c251561419d0e0f51492172b1072sewardj // Otherwise, look for other reasons to say NO. First, 3189ab64a4d3043c251561419d0e0f51492172b1072sewardj // see if the exe name matches any of the patterns specified 3199ab64a4d3043c251561419d0e0f51492172b1072sewardj // by --trace-children-skip=. 320064212709dc8988a48d2cbde5b90528952d8cd74sewardj if (VG_(clo_trace_children_skip)) { 321064212709dc8988a48d2cbde5b90528952d8cd74sewardj HChar const* last = VG_(clo_trace_children_skip); 32219f91bbaedb4caef8a60ce94b0f507193cc0bc10florian HChar const* name = child_exe_name; 323064212709dc8988a48d2cbde5b90528952d8cd74sewardj while (*last) { 324064212709dc8988a48d2cbde5b90528952d8cd74sewardj Bool matches; 325064212709dc8988a48d2cbde5b90528952d8cd74sewardj HChar* patt; 326064212709dc8988a48d2cbde5b90528952d8cd74sewardj HChar const* first = consume_commas(last); 327064212709dc8988a48d2cbde5b90528952d8cd74sewardj last = consume_field(first); 328064212709dc8988a48d2cbde5b90528952d8cd74sewardj if (first == last) 329064212709dc8988a48d2cbde5b90528952d8cd74sewardj break; 330064212709dc8988a48d2cbde5b90528952d8cd74sewardj vg_assert(last > first); 331064212709dc8988a48d2cbde5b90528952d8cd74sewardj /* copy the candidate string into a temporary malloc'd block 332064212709dc8988a48d2cbde5b90528952d8cd74sewardj so we can use VG_(string_match) on it. */ 333064212709dc8988a48d2cbde5b90528952d8cd74sewardj patt = VG_(calloc)("m_options.swttc.1", last - first + 1, 1); 334064212709dc8988a48d2cbde5b90528952d8cd74sewardj VG_(memcpy)(patt, first, last - first); 335064212709dc8988a48d2cbde5b90528952d8cd74sewardj vg_assert(patt[last-first] == 0); 336064212709dc8988a48d2cbde5b90528952d8cd74sewardj matches = VG_(string_match)(patt, name); 337064212709dc8988a48d2cbde5b90528952d8cd74sewardj VG_(free)(patt); 338064212709dc8988a48d2cbde5b90528952d8cd74sewardj if (matches) 339064212709dc8988a48d2cbde5b90528952d8cd74sewardj return False; 340064212709dc8988a48d2cbde5b90528952d8cd74sewardj } 341064212709dc8988a48d2cbde5b90528952d8cd74sewardj } 3429ab64a4d3043c251561419d0e0f51492172b1072sewardj 3439ab64a4d3043c251561419d0e0f51492172b1072sewardj // Check if any of the args match any of the patterns specified 3449ab64a4d3043c251561419d0e0f51492172b1072sewardj // by --trace-children-skip-by-arg=. 3459ab64a4d3043c251561419d0e0f51492172b1072sewardj if (VG_(clo_trace_children_skip_by_arg) && child_argv != NULL) { 3469ab64a4d3043c251561419d0e0f51492172b1072sewardj HChar const* last = VG_(clo_trace_children_skip_by_arg); 3479ab64a4d3043c251561419d0e0f51492172b1072sewardj while (*last) { 3489ab64a4d3043c251561419d0e0f51492172b1072sewardj Int i; 3499ab64a4d3043c251561419d0e0f51492172b1072sewardj Bool matches; 3509ab64a4d3043c251561419d0e0f51492172b1072sewardj HChar* patt; 3519ab64a4d3043c251561419d0e0f51492172b1072sewardj HChar const* first = consume_commas(last); 3529ab64a4d3043c251561419d0e0f51492172b1072sewardj last = consume_field(first); 3539ab64a4d3043c251561419d0e0f51492172b1072sewardj if (first == last) 3549ab64a4d3043c251561419d0e0f51492172b1072sewardj break; 3559ab64a4d3043c251561419d0e0f51492172b1072sewardj vg_assert(last > first); 3569ab64a4d3043c251561419d0e0f51492172b1072sewardj /* copy the candidate string into a temporary malloc'd block 3579ab64a4d3043c251561419d0e0f51492172b1072sewardj so we can use VG_(string_match) on it. */ 3589ab64a4d3043c251561419d0e0f51492172b1072sewardj patt = VG_(calloc)("m_options.swttc.1", last - first + 1, 1); 3599ab64a4d3043c251561419d0e0f51492172b1072sewardj VG_(memcpy)(patt, first, last - first); 3609ab64a4d3043c251561419d0e0f51492172b1072sewardj vg_assert(patt[last-first] == 0); 3619ab64a4d3043c251561419d0e0f51492172b1072sewardj for (i = 0; child_argv[i]; i++) { 3629ab64a4d3043c251561419d0e0f51492172b1072sewardj matches = VG_(string_match)(patt, child_argv[i]); 3639ab64a4d3043c251561419d0e0f51492172b1072sewardj if (matches) { 3649ab64a4d3043c251561419d0e0f51492172b1072sewardj VG_(free)(patt); 3659ab64a4d3043c251561419d0e0f51492172b1072sewardj return False; 3669ab64a4d3043c251561419d0e0f51492172b1072sewardj } 3679ab64a4d3043c251561419d0e0f51492172b1072sewardj } 3689ab64a4d3043c251561419d0e0f51492172b1072sewardj VG_(free)(patt); 3699ab64a4d3043c251561419d0e0f51492172b1072sewardj } 3709ab64a4d3043c251561419d0e0f51492172b1072sewardj } 3719ab64a4d3043c251561419d0e0f51492172b1072sewardj 372064212709dc8988a48d2cbde5b90528952d8cd74sewardj // --trace-children=yes, and this particular executable isn't 373064212709dc8988a48d2cbde5b90528952d8cd74sewardj // excluded 374064212709dc8988a48d2cbde5b90528952d8cd74sewardj return True; 375064212709dc8988a48d2cbde5b90528952d8cd74sewardj} 376374a36dbfb6d08ed8d77c31a88e198a861ffadf0njn 3776893d65852940741dbebbc6ba1480e89cf34e30fsewardj 37832824028b51461062a5a282bfd775d4bd4ad6a47sewardj/*--------------------------------------------------------------------*/ 379b1cc5d666cc8f8065419e4a8c819ed0b8256a764njn/*--- end ---*/ 38032824028b51461062a5a282bfd775d4bd4ad6a47sewardj/*--------------------------------------------------------------------*/ 381