| |
| /*--------------------------------------------------------------------*/ |
| /*--- Command line options. ---*/ |
| /*--- m_options.c ---*/ |
| /*--------------------------------------------------------------------*/ |
| |
| /* |
| This file is part of Valgrind, a dynamic binary instrumentation |
| framework. |
| |
| Copyright (C) 2000-2008 Nicholas Nethercote |
| njn@valgrind.org |
| |
| This program is free software; you can redistribute it and/or |
| modify it under the terms of the GNU General Public License as |
| published by the Free Software Foundation; either version 2 of the |
| License, or (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the Free Software |
| Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307, USA. |
| |
| The GNU General Public License is contained in the file COPYING. |
| */ |
| |
| #include "pub_core_basics.h" |
| #include "pub_core_vki.h" |
| #include "pub_core_options.h" |
| #include "pub_core_libcassert.h" |
| #include "pub_core_libcbase.h" |
| #include "pub_core_libcfile.h" |
| #include "pub_core_libcprint.h" |
| #include "pub_core_libcproc.h" |
| #include "pub_core_mallocfree.h" |
| |
| // See pub_{core,tool}_options.h for explanations of all these. |
| |
| |
| /* Define, and set defaults. */ |
| VexControl VG_(clo_vex_control); |
| Bool VG_(clo_error_limit) = True; |
| Int VG_(clo_error_exitcode) = 0; |
| Bool VG_(clo_db_attach) = False; |
| Char* VG_(clo_db_command) = GDB_PATH " -nw %f %p"; |
| Int VG_(clo_gen_suppressions) = 0; |
| Int VG_(clo_sanity_level) = 1; |
| Int VG_(clo_verbosity) = 1; |
| Bool VG_(clo_xml) = False; |
| HChar* VG_(clo_xml_user_comment) = NULL; |
| Bool VG_(clo_demangle) = True; |
| Bool VG_(clo_trace_children) = False; |
| Bool VG_(clo_child_silent_after_fork) = False; |
| Int VG_(clo_log_fd) = 2; /* must be signed, as -1 is possible. */ |
| Char* VG_(clo_log_name) = NULL; |
| Bool VG_(clo_time_stamp) = False; |
| Int VG_(clo_input_fd) = 0; /* stdin */ |
| Int VG_(clo_n_suppressions) = 0; |
| Char* VG_(clo_suppressions)[VG_CLO_MAX_SFILES]; |
| UChar VG_(clo_trace_flags) = 0; // 00000000b |
| UChar VG_(clo_profile_flags) = 0; // 00000000b |
| Int VG_(clo_trace_notbelow) = 999999999; |
| Bool VG_(clo_trace_syscalls) = False; |
| Bool VG_(clo_trace_signals) = False; |
| Bool VG_(clo_trace_symtab) = False; |
| HChar* VG_(clo_trace_symtab_patt) = "*"; |
| Bool VG_(clo_trace_cfi) = False; |
| Bool VG_(clo_debug_dump_syms) = False; |
| Bool VG_(clo_debug_dump_line) = False; |
| Bool VG_(clo_debug_dump_frames) = False; |
| Bool VG_(clo_trace_redir) = False; |
| Bool VG_(clo_trace_sched) = False; |
| Bool VG_(clo_trace_pthreads) = False; |
| Int VG_(clo_dump_error) = 0; |
| Int VG_(clo_backtrace_size) = 12; |
| Char* VG_(clo_sim_hints) = NULL; |
| Bool VG_(clo_sym_offsets) = False; |
| Bool VG_(clo_read_var_info) = False; |
| Bool VG_(clo_run_libc_freeres) = True; |
| Bool VG_(clo_track_fds) = False; |
| Bool VG_(clo_show_below_main)= False; |
| Bool VG_(clo_show_emwarns) = False; |
| Word VG_(clo_max_stackframe) = 2000000; |
| Word VG_(clo_main_stacksize) = 0; /* use client's rlimit.stack */ |
| Bool VG_(clo_wait_for_gdb) = False; |
| VgSmc VG_(clo_smc_check) = Vg_SmcStack; |
| HChar* VG_(clo_kernel_variant) = NULL; |
| |
| |
| /*====================================================================*/ |
| /*=== Command line errors ===*/ |
| /*====================================================================*/ |
| |
| static void revert_to_stderr ( void ) |
| { |
| vg_assert( !VG_(logging_to_socket) ); |
| VG_(clo_log_fd) = 2; /* stderr */ |
| } |
| |
| __attribute__((noreturn)) |
| void VG_(err_bad_option) ( Char* opt ) |
| { |
| revert_to_stderr(); |
| VG_(printf)("valgrind: Bad option '%s'; aborting.\n", opt); |
| VG_(printf)("valgrind: Use --help for more information.\n"); |
| VG_(exit)(1); |
| } |
| |
| __attribute__((noreturn)) |
| void VG_(err_missing_prog) ( void ) |
| { |
| revert_to_stderr(); |
| VG_(printf)("valgrind: no program specified\n"); |
| VG_(printf)("valgrind: Use --help for more information.\n"); |
| VG_(exit)(1); |
| } |
| |
| __attribute__((noreturn)) |
| void VG_(err_config_error) ( Char* msg ) |
| { |
| revert_to_stderr(); |
| VG_(printf)("valgrind: Startup or configuration error:\n %s\n", msg); |
| VG_(printf)("valgrind: Unable to start up properly. Giving up.\n"); |
| VG_(exit)(1); |
| } |
| |
| // Copies the string, prepending it with the startup working directory, and |
| // expanding %p and %q entries. Returns a new, malloc'd string. |
| Char* VG_(expand_file_name)(Char* option_name, Char* format) |
| { |
| static Char base_dir[VKI_PATH_MAX]; |
| Int len, i = 0, j = 0; |
| Char* out; |
| |
| Bool ok = VG_(get_startup_wd)(base_dir, VKI_PATH_MAX); |
| tl_assert(ok); |
| |
| if (VG_STREQ(format, "")) { |
| // Empty name, bad. |
| VG_(message)(Vg_UserMsg, "%s: filename is empty", option_name); |
| goto bad; |
| } |
| |
| // If 'format' starts with a '/', do not prefix with startup dir. |
| if (format[0] != '/') { |
| j += VG_(strlen)(base_dir); |
| } |
| |
| // The 10 is slop, it should be enough in most cases. |
| len = j + VG_(strlen)(format) + 10; |
| out = VG_(malloc)( len ); |
| if (format[0] != '/') { |
| VG_(strcpy)(out, base_dir); |
| out[j++] = '/'; |
| } |
| |
| #define ENSURE_THIS_MUCH_SPACE(x) \ |
| if (j + x >= len) { \ |
| len += (10 + x); \ |
| out = VG_(realloc)(out, len); \ |
| } |
| |
| while (format[i]) { |
| if (format[i] != '%') { |
| ENSURE_THIS_MUCH_SPACE(1); |
| out[j++] = format[i++]; |
| |
| } else { |
| // We saw a '%'. What's next... |
| i++; |
| if ('%' == format[i]) { |
| // Replace '%%' with '%'. |
| ENSURE_THIS_MUCH_SPACE(1); |
| out[j++] = format[i++]; |
| } |
| else if ('p' == format[i]) { |
| // Print the PID. Assume that it's not longer than 10 chars -- |
| // reasonable since 'pid' is an Int (ie. 32 bits). |
| Int pid = VG_(getpid)(); |
| ENSURE_THIS_MUCH_SPACE(10); |
| j += VG_(sprintf)(&out[j], "%d", pid); |
| i++; |
| } |
| else if ('q' == format[i]) { |
| i++; |
| if ('{' == format[i]) { |
| // Get the env var name, print its contents. |
| Char* qualname; |
| Char* qual; |
| i++; |
| qualname = &format[i]; |
| while (True) { |
| if (0 == format[i]) { |
| VG_(message)(Vg_UserMsg, "%s: malformed %%q specifier", |
| option_name); |
| goto bad; |
| } else if ('}' == format[i]) { |
| // Temporarily replace the '}' with NUL to extract var |
| // name. |
| format[i] = 0; |
| qual = VG_(getenv)(qualname); |
| if (NULL == qual) { |
| VG_(message)(Vg_UserMsg, |
| "%s: environment variable %s is not set", |
| option_name, qualname); |
| format[i] = '}'; // Put the '}' back. |
| goto bad; |
| } |
| format[i] = '}'; // Put the '}' back. |
| i++; |
| break; |
| } |
| i++; |
| } |
| ENSURE_THIS_MUCH_SPACE(VG_(strlen)(qual)); |
| j += VG_(sprintf)(&out[j], "%s", qual); |
| } else { |
| VG_(message)(Vg_UserMsg, |
| "%s: expected '{' after '%%q'", option_name); |
| goto bad; |
| } |
| } |
| else { |
| // Something else, abort. |
| VG_(message)(Vg_UserMsg, |
| "%s: expected 'p' or 'q' or '%%' after '%%'", option_name); |
| goto bad; |
| } |
| } |
| } |
| ENSURE_THIS_MUCH_SPACE(1); |
| out[j++] = 0; |
| |
| return out; |
| |
| bad: { |
| Char* opt = // 2: 1 for the '=', 1 for the NUL. |
| VG_(malloc)( VG_(strlen)(option_name) + VG_(strlen)(format) + 2 ); |
| VG_(strcpy)(opt, option_name); |
| VG_(strcat)(opt, "="); |
| VG_(strcat)(opt, format); |
| VG_(err_bad_option)(opt); |
| } |
| } |
| |
| |
| |
| /*--------------------------------------------------------------------*/ |
| /*--- end m_options.c ---*/ |
| /*--------------------------------------------------------------------*/ |