| |
| /*--------------------------------------------------------------------*/ |
| /*--- Code that is shared between MemCheck and AddrCheck. ---*/ |
| /*--- mac_needs.c ---*/ |
| /*--------------------------------------------------------------------*/ |
| |
| /* |
| This file is part of MemCheck, a heavyweight Valgrind tool for |
| detecting memory errors, and AddrCheck, a lightweight Valgrind tool |
| for detecting memory errors. |
| |
| Copyright (C) 2000-2005 Julian Seward |
| jseward@acm.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 "mac_shared.h" |
| |
| #include "memcheck.h" /* for VG_USERREQ__* */ |
| |
| /*------------------------------------------------------------*/ |
| /*--- Defns ---*/ |
| /*------------------------------------------------------------*/ |
| |
| /* These many bytes below %ESP are considered addressible if we're |
| doing the --workaround-gcc296-bugs hack. */ |
| #define VG_GCC296_BUG_STACK_SLOP 1024 |
| |
| /*------------------------------------------------------------*/ |
| /*--- Command line options ---*/ |
| /*------------------------------------------------------------*/ |
| |
| Bool MAC_(clo_partial_loads_ok) = True; |
| Int MAC_(clo_freelist_vol) = 1000000; |
| LeakCheckMode MAC_(clo_leak_check) = LC_Summary; |
| VgRes MAC_(clo_leak_resolution) = Vg_LowRes; |
| Bool MAC_(clo_show_reachable) = False; |
| Bool MAC_(clo_workaround_gcc296_bugs) = False; |
| |
| Bool MAC_(process_common_cmd_line_option)(Char* arg) |
| { |
| VG_BOOL_CLO("--partial-loads-ok", MAC_(clo_partial_loads_ok)) |
| else VG_BOOL_CLO("--show-reachable", MAC_(clo_show_reachable)) |
| else VG_BOOL_CLO("--workaround-gcc296-bugs",MAC_(clo_workaround_gcc296_bugs)) |
| |
| else VG_BNUM_CLO("--freelist-vol", MAC_(clo_freelist_vol), 0, 1000000000) |
| |
| else if (VG_CLO_STREQ(arg, "--leak-check=no")) |
| MAC_(clo_leak_check) = LC_Off; |
| else if (VG_CLO_STREQ(arg, "--leak-check=summary")) |
| MAC_(clo_leak_check) = LC_Summary; |
| else if (VG_CLO_STREQ(arg, "--leak-check=yes") || |
| VG_CLO_STREQ(arg, "--leak-check=full")) |
| MAC_(clo_leak_check) = LC_Full; |
| |
| else if (VG_CLO_STREQ(arg, "--leak-resolution=low")) |
| MAC_(clo_leak_resolution) = Vg_LowRes; |
| else if (VG_CLO_STREQ(arg, "--leak-resolution=med")) |
| MAC_(clo_leak_resolution) = Vg_MedRes; |
| else if (VG_CLO_STREQ(arg, "--leak-resolution=high")) |
| MAC_(clo_leak_resolution) = Vg_HighRes; |
| |
| else |
| return VG_(replacement_malloc_process_cmd_line_option)(arg); |
| |
| return True; |
| } |
| |
| void MAC_(print_common_usage)(void) |
| { |
| VG_(printf)( |
| " --partial-loads-ok=no|yes too hard to explain here; see manual [yes]\n" |
| " --freelist-vol=<number> volume of freed blocks queue [1000000]\n" |
| " --leak-check=no|summary|full search for memory leaks at exit? [summary]\n" |
| " --leak-resolution=low|med|high how much bt merging in leak check [low]\n" |
| " --show-reachable=no|yes show reachable blocks in leak check? [no]\n" |
| " --workaround-gcc296-bugs=no|yes self explanatory [no]\n" |
| ); |
| VG_(replacement_malloc_print_usage)(); |
| } |
| |
| void MAC_(print_common_debug_usage)(void) |
| { |
| VG_(replacement_malloc_print_debug_usage)(); |
| } |
| |
| /*------------------------------------------------------------*/ |
| /*--- Comparing and printing errors ---*/ |
| /*------------------------------------------------------------*/ |
| |
| static __inline__ |
| void clear_AddrInfo ( AddrInfo* ai ) |
| { |
| ai->akind = Unknown; |
| ai->blksize = 0; |
| ai->rwoffset = 0; |
| ai->lastchange = NULL; |
| ai->stack_tid = VG_INVALID_THREADID; |
| ai->maybe_gcc = False; |
| ai->desc = NULL; |
| } |
| |
| void MAC_(clear_MAC_Error) ( MAC_Error* err_extra ) |
| { |
| err_extra->axskind = ReadAxs; |
| err_extra->size = 0; |
| clear_AddrInfo ( &err_extra->addrinfo ); |
| err_extra->isUnaddr = True; |
| } |
| |
| __attribute__ ((unused)) |
| static Bool eq_AddrInfo ( VgRes res, AddrInfo* ai1, AddrInfo* ai2 ) |
| { |
| if (ai1->akind != Undescribed |
| && ai2->akind != Undescribed |
| && ai1->akind != ai2->akind) |
| return False; |
| if (ai1->akind == Freed || ai1->akind == Mallocd) { |
| if (ai1->blksize != ai2->blksize) |
| return False; |
| if (!VG_(eq_ExeContext)(res, ai1->lastchange, ai2->lastchange)) |
| return False; |
| } |
| return True; |
| } |
| |
| /* Compare error contexts, to detect duplicates. Note that if they |
| are otherwise the same, the faulting addrs and associated rwoffsets |
| are allowed to be different. */ |
| |
| Bool TL_(eq_Error) ( VgRes res, Error* e1, Error* e2 ) |
| { |
| MAC_Error* e1_extra = VG_(get_error_extra)(e1); |
| MAC_Error* e2_extra = VG_(get_error_extra)(e2); |
| |
| /* Guaranteed by calling function */ |
| tl_assert(VG_(get_error_kind)(e1) == VG_(get_error_kind)(e2)); |
| |
| switch (VG_(get_error_kind)(e1)) { |
| case CoreMemErr: { |
| Char *e1s, *e2s; |
| if (e1_extra->isUnaddr != e2_extra->isUnaddr) return False; |
| e1s = VG_(get_error_string)(e1); |
| e2s = VG_(get_error_string)(e2); |
| if (e1s == e2s) return True; |
| if (0 == VG_(strcmp)(e1s, e2s)) return True; |
| return False; |
| } |
| |
| case UserErr: |
| case ParamErr: |
| if (e1_extra->isUnaddr != e2_extra->isUnaddr) return False; |
| if (VG_(get_error_kind)(e1) == ParamErr |
| && 0 != VG_(strcmp)(VG_(get_error_string)(e1), |
| VG_(get_error_string)(e2))) return False; |
| return True; |
| |
| case FreeErr: |
| case FreeMismatchErr: |
| /* JRS 2002-Aug-26: comparing addrs seems overkill and can |
| cause excessive duplication of errors. Not even AddrErr |
| below does that. So don't compare either the .addr field |
| or the .addrinfo fields. */ |
| /* if (e1->addr != e2->addr) return False; */ |
| /* if (!eq_AddrInfo(res, &e1_extra->addrinfo, &e2_extra->addrinfo)) |
| return False; |
| */ |
| return True; |
| |
| case AddrErr: |
| /* if (e1_extra->axskind != e2_extra->axskind) return False; */ |
| if (e1_extra->size != e2_extra->size) return False; |
| /* |
| if (!eq_AddrInfo(res, &e1_extra->addrinfo, &e2_extra->addrinfo)) |
| return False; |
| */ |
| return True; |
| |
| case ValueErr: |
| if (e1_extra->size != e2_extra->size) return False; |
| return True; |
| |
| case OverlapErr: |
| return True; |
| |
| case LeakErr: |
| VG_(tool_panic)("Shouldn't get LeakErr in TL_(eq_Error),\n" |
| "since it's handled with VG_(unique_error)()!"); |
| |
| case IllegalMempoolErr: |
| return True; |
| |
| default: |
| VG_(printf)("Error:\n unknown error code %d\n", |
| VG_(get_error_kind)(e1)); |
| VG_(tool_panic)("unknown error code in TL_(eq_Error)"); |
| } |
| } |
| |
| void MAC_(pp_AddrInfo) ( Addr a, AddrInfo* ai ) |
| { |
| switch (ai->akind) { |
| case Stack: |
| VG_(message)(Vg_UserMsg, |
| " Address 0x%x is on thread %d's stack", |
| a, ai->stack_tid); |
| break; |
| case Unknown: |
| if (ai->maybe_gcc) { |
| VG_(message)(Vg_UserMsg, |
| " Address 0x%x is just below %%esp. Possibly a bug in GCC/G++", |
| a); |
| VG_(message)(Vg_UserMsg, |
| " v 2.96 or 3.0.X. To suppress, use: --workaround-gcc296-bugs=yes"); |
| } else { |
| VG_(message)(Vg_UserMsg, |
| " Address 0x%x is not stack'd, malloc'd or (recently) free'd",a); |
| } |
| break; |
| case Freed: case Mallocd: case UserG: case Mempool: { |
| SizeT delta; |
| const Char* relative; |
| const Char* kind; |
| if (ai->akind == Mempool) { |
| kind = "mempool"; |
| } else { |
| kind = "block"; |
| } |
| if (ai->desc != NULL) |
| kind = ai->desc; |
| |
| if (ai->rwoffset < 0) { |
| delta = (SizeT)(- ai->rwoffset); |
| relative = "before"; |
| } else if (ai->rwoffset >= ai->blksize) { |
| delta = ai->rwoffset - ai->blksize; |
| relative = "after"; |
| } else { |
| delta = ai->rwoffset; |
| relative = "inside"; |
| } |
| VG_(message)(Vg_UserMsg, |
| " Address 0x%x is %llu bytes %s a %s of size %d %s", |
| a, (ULong)delta, relative, kind, |
| ai->blksize, |
| ai->akind==Mallocd ? "alloc'd" |
| : ai->akind==Freed ? "free'd" |
| : "client-defined"); |
| VG_(pp_ExeContext)(ai->lastchange); |
| break; |
| } |
| case Register: |
| // print nothing |
| tl_assert(0 == a); |
| break; |
| default: |
| VG_(tool_panic)("MAC_(pp_AddrInfo)"); |
| } |
| } |
| |
| /* This prints out the message for the error types where Memcheck and |
| Addrcheck have identical messages */ |
| void MAC_(pp_shared_Error) ( Error* err ) |
| { |
| MAC_Error* err_extra = VG_(get_error_extra)(err); |
| |
| switch (VG_(get_error_kind)(err)) { |
| case FreeErr: |
| VG_(message)(Vg_UserMsg, "Invalid free() / delete / delete[]"); |
| /* fall through */ |
| case FreeMismatchErr: |
| if (VG_(get_error_kind)(err) == FreeMismatchErr) |
| VG_(message)(Vg_UserMsg, |
| "Mismatched free() / delete / delete []"); |
| VG_(pp_ExeContext)( VG_(get_error_where)(err) ); |
| MAC_(pp_AddrInfo)(VG_(get_error_address)(err), &err_extra->addrinfo); |
| break; |
| |
| case AddrErr: |
| switch (err_extra->axskind) { |
| case ReadAxs: |
| VG_(message)(Vg_UserMsg, "Invalid read of size %d", |
| err_extra->size ); |
| break; |
| case WriteAxs: |
| VG_(message)(Vg_UserMsg, "Invalid write of size %d", |
| err_extra->size ); |
| break; |
| case ExecAxs: |
| VG_(message)(Vg_UserMsg, "Jump to the invalid address " |
| "stated on the next line"); |
| break; |
| default: |
| VG_(tool_panic)("TL_(pp_shared_Error)(axskind)"); |
| } |
| VG_(pp_ExeContext)( VG_(get_error_where)(err) ); |
| MAC_(pp_AddrInfo)(VG_(get_error_address)(err), &err_extra->addrinfo); |
| break; |
| |
| case OverlapErr: { |
| OverlapExtra* ov_extra = (OverlapExtra*)VG_(get_error_extra)(err); |
| if (ov_extra->len == -1) |
| VG_(message)(Vg_UserMsg, |
| "Source and destination overlap in %s(%p, %p)", |
| VG_(get_error_string)(err), |
| ov_extra->dst, ov_extra->src); |
| else |
| VG_(message)(Vg_UserMsg, |
| "Source and destination overlap in %s(%p, %p, %d)", |
| VG_(get_error_string)(err), |
| ov_extra->dst, ov_extra->src, ov_extra->len); |
| VG_(pp_ExeContext)( VG_(get_error_where)(err) ); |
| break; |
| } |
| case LeakErr: { |
| /* Totally abusing the types of these spare fields... oh well. */ |
| UInt n_this_record = (UWord)VG_(get_error_address)(err); |
| UInt n_total_records = (UWord)VG_(get_error_string) (err); |
| |
| MAC_(pp_LeakError)(err_extra, n_this_record, n_total_records); |
| break; |
| } |
| |
| case IllegalMempoolErr: |
| VG_(message)(Vg_UserMsg, "Illegal memory pool address"); |
| VG_(pp_ExeContext)( VG_(get_error_where)(err) ); |
| MAC_(pp_AddrInfo)(VG_(get_error_address)(err), &err_extra->addrinfo); |
| break; |
| |
| default: |
| VG_(printf)("Error:\n unknown Memcheck/Addrcheck error code %d\n", |
| VG_(get_error_kind)(err)); |
| VG_(tool_panic)("unknown error code in MAC_(pp_shared_Error)"); |
| } |
| } |
| |
| /*------------------------------------------------------------*/ |
| /*--- Recording errors ---*/ |
| /*------------------------------------------------------------*/ |
| |
| /* Additional description function for describe_addr(); used by |
| MemCheck for user blocks, which Addrcheck doesn't support. */ |
| Bool (*MAC_(describe_addr_supp)) ( Addr a, AddrInfo* ai ) = NULL; |
| |
| /* Callback for searching thread stacks */ |
| static Bool addr_is_in_bounds(Addr stack_min, Addr stack_max, void *ap) |
| { |
| Addr a = *(Addr *)ap; |
| |
| return (stack_min <= a && a <= stack_max); |
| } |
| |
| /* Callback for searching free'd list */ |
| static Bool addr_is_in_MAC_Chunk(MAC_Chunk* mc, void *ap) |
| { |
| Addr a = *(Addr *)ap; |
| |
| return VG_(addr_is_in_block)( a, mc->data, mc->size ); |
| } |
| |
| /* Callback for searching malloc'd lists */ |
| static Bool addr_is_in_HashNode(VgHashNode* sh_ch, void *ap) |
| { |
| return addr_is_in_MAC_Chunk( (MAC_Chunk*)sh_ch, ap ); |
| } |
| |
| /* Describe an address as best you can, for error messages, |
| putting the result in ai. */ |
| static void describe_addr ( Addr a, AddrInfo* ai ) |
| { |
| MAC_Chunk* sc; |
| ThreadId tid; |
| |
| /* Perhaps it's a user-def'd block ? (only check if requested, though) */ |
| if (NULL != MAC_(describe_addr_supp)) { |
| if (MAC_(describe_addr_supp)( a, ai )) |
| return; |
| } |
| /* Perhaps it's on a thread's stack? */ |
| tid = VG_(first_matching_thread_stack)(addr_is_in_bounds, &a); |
| if (tid != VG_INVALID_THREADID) { |
| ai->akind = Stack; |
| ai->stack_tid = tid; |
| return; |
| } |
| /* Search for a recently freed block which might bracket it. */ |
| sc = MAC_(first_matching_freed_MAC_Chunk)(addr_is_in_MAC_Chunk, &a); |
| if (NULL != sc) { |
| ai->akind = Freed; |
| ai->blksize = sc->size; |
| ai->rwoffset = (Int)a - (Int)sc->data; |
| ai->lastchange = sc->where; |
| return; |
| } |
| /* Search for a currently malloc'd block which might bracket it. */ |
| sc = (MAC_Chunk*)VG_(HT_first_match)(MAC_(malloc_list), addr_is_in_HashNode, &a); |
| if (NULL != sc) { |
| ai->akind = Mallocd; |
| ai->blksize = sc->size; |
| ai->rwoffset = (Int)(a) - (Int)sc->data; |
| ai->lastchange = sc->where; |
| return; |
| } |
| /* Clueless ... */ |
| ai->akind = Unknown; |
| return; |
| } |
| |
| /* Is this address within some small distance below %ESP? Used only |
| for the --workaround-gcc296-bugs kludge. */ |
| static Bool is_just_below_ESP( Addr esp, Addr aa ) |
| { |
| if (esp > aa && (esp - aa) <= VG_GCC296_BUG_STACK_SLOP) |
| return True; |
| else |
| return False; |
| } |
| |
| /* This one called from generated code and non-generated code. */ |
| |
| void MAC_(record_address_error) ( ThreadId tid, Addr a, Int size, |
| Bool isWrite ) |
| { |
| MAC_Error err_extra; |
| Bool just_below_esp; |
| |
| just_below_esp = is_just_below_ESP( VG_(get_SP)(tid), a ); |
| |
| /* If this is caused by an access immediately below %ESP, and the |
| user asks nicely, we just ignore it. */ |
| if (MAC_(clo_workaround_gcc296_bugs) && just_below_esp) |
| return; |
| |
| MAC_(clear_MAC_Error)( &err_extra ); |
| err_extra.axskind = isWrite ? WriteAxs : ReadAxs; |
| err_extra.size = size; |
| err_extra.addrinfo.akind = Undescribed; |
| err_extra.addrinfo.maybe_gcc = just_below_esp; |
| VG_(maybe_record_error)( tid, AddrErr, a, /*s*/NULL, &err_extra ); |
| } |
| |
| /* These ones are called from non-generated code */ |
| |
| /* This is for memory errors in pthread functions, as opposed to pthread API |
| errors which are found by the core. */ |
| void MAC_(record_core_mem_error) ( ThreadId tid, Bool isUnaddr, Char* msg ) |
| { |
| MAC_Error err_extra; |
| |
| MAC_(clear_MAC_Error)( &err_extra ); |
| err_extra.isUnaddr = isUnaddr; |
| VG_(maybe_record_error)( tid, CoreMemErr, /*addr*/0, msg, &err_extra ); |
| } |
| |
| void MAC_(record_param_error) ( ThreadId tid, Addr a, Bool isReg, |
| Bool isUnaddr, Char* msg ) |
| { |
| MAC_Error err_extra; |
| |
| tl_assert(VG_INVALID_THREADID != tid); |
| MAC_(clear_MAC_Error)( &err_extra ); |
| err_extra.addrinfo.akind = ( isReg ? Register : Undescribed ); |
| err_extra.isUnaddr = isUnaddr; |
| VG_(maybe_record_error)( tid, ParamErr, a, msg, &err_extra ); |
| } |
| |
| void MAC_(record_jump_error) ( ThreadId tid, Addr a ) |
| { |
| MAC_Error err_extra; |
| |
| tl_assert(VG_INVALID_THREADID != tid); |
| MAC_(clear_MAC_Error)( &err_extra ); |
| err_extra.axskind = ExecAxs; |
| err_extra.size = 1; // size only used for suppressions |
| err_extra.addrinfo.akind = Undescribed; |
| VG_(maybe_record_error)( tid, AddrErr, a, /*s*/NULL, &err_extra ); |
| } |
| |
| void MAC_(record_free_error) ( ThreadId tid, Addr a ) |
| { |
| MAC_Error err_extra; |
| |
| tl_assert(VG_INVALID_THREADID != tid); |
| MAC_(clear_MAC_Error)( &err_extra ); |
| err_extra.addrinfo.akind = Undescribed; |
| VG_(maybe_record_error)( tid, FreeErr, a, /*s*/NULL, &err_extra ); |
| } |
| |
| void MAC_(record_illegal_mempool_error) ( ThreadId tid, Addr a ) |
| { |
| MAC_Error err_extra; |
| |
| tl_assert(VG_INVALID_THREADID != tid); |
| MAC_(clear_MAC_Error)( &err_extra ); |
| err_extra.addrinfo.akind = Undescribed; |
| VG_(maybe_record_error)( tid, IllegalMempoolErr, a, /*s*/NULL, &err_extra ); |
| } |
| |
| void MAC_(record_freemismatch_error) ( ThreadId tid, Addr a ) |
| { |
| MAC_Error err_extra; |
| |
| tl_assert(VG_INVALID_THREADID != tid); |
| MAC_(clear_MAC_Error)( &err_extra ); |
| err_extra.addrinfo.akind = Undescribed; |
| VG_(maybe_record_error)( tid, FreeMismatchErr, a, /*s*/NULL, &err_extra ); |
| } |
| |
| void MAC_(record_overlap_error) ( ThreadId tid, |
| Char* function, OverlapExtra* ov_extra ) |
| { |
| VG_(maybe_record_error)( |
| tid, OverlapErr, /*addr*/0, /*s*/function, ov_extra ); |
| } |
| |
| |
| /* Updates the copy with address info if necessary (but not for all errors). */ |
| UInt TL_(update_extra)( Error* err ) |
| { |
| switch (VG_(get_error_kind)(err)) { |
| case ValueErr: |
| case CoreMemErr: |
| case AddrErr: |
| case ParamErr: |
| case UserErr: |
| case FreeErr: |
| case IllegalMempoolErr: |
| case FreeMismatchErr: { |
| MAC_Error* extra = VG_(get_error_extra)(err); |
| if (extra != NULL && Undescribed == extra->addrinfo.akind) { |
| describe_addr ( VG_(get_error_address)(err), &(extra->addrinfo) ); |
| } |
| return sizeof(MAC_Error); |
| } |
| /* Don't need to return the correct size -- LeakErrs are always shown with |
| VG_(unique_error)() so they're not copied anyway. */ |
| case LeakErr: return 0; |
| case OverlapErr: return sizeof(OverlapExtra); |
| default: VG_(tool_panic)("update_extra: bad errkind"); |
| } |
| } |
| |
| |
| /*------------------------------------------------------------*/ |
| /*--- Suppressions ---*/ |
| /*------------------------------------------------------------*/ |
| |
| Bool MAC_(shared_recognised_suppression) ( Char* name, Supp* su ) |
| { |
| SuppKind skind; |
| |
| if (VG_STREQ(name, "Param")) skind = ParamSupp; |
| else if (VG_STREQ(name, "CoreMem")) skind = CoreMemSupp; |
| else if (VG_STREQ(name, "Addr1")) skind = Addr1Supp; |
| else if (VG_STREQ(name, "Addr2")) skind = Addr2Supp; |
| else if (VG_STREQ(name, "Addr4")) skind = Addr4Supp; |
| else if (VG_STREQ(name, "Addr8")) skind = Addr8Supp; |
| else if (VG_STREQ(name, "Addr16")) skind = Addr16Supp; |
| else if (VG_STREQ(name, "Free")) skind = FreeSupp; |
| else if (VG_STREQ(name, "Leak")) skind = LeakSupp; |
| else if (VG_STREQ(name, "Overlap")) skind = OverlapSupp; |
| else if (VG_STREQ(name, "Mempool")) skind = MempoolSupp; |
| else |
| return False; |
| |
| VG_(set_supp_kind)(su, skind); |
| return True; |
| } |
| |
| Bool TL_(read_extra_suppression_info) ( Int fd, Char* buf, Int nBuf, Supp *su ) |
| { |
| Bool eof; |
| |
| if (VG_(get_supp_kind)(su) == ParamSupp) { |
| eof = VG_(get_line) ( fd, buf, nBuf ); |
| if (eof) return False; |
| VG_(set_supp_string)(su, VG_(strdup)(buf)); |
| } |
| return True; |
| } |
| |
| Bool TL_(error_matches_suppression)(Error* err, Supp* su) |
| { |
| Int su_size; |
| MAC_Error* err_extra = VG_(get_error_extra)(err); |
| ErrorKind ekind = VG_(get_error_kind )(err); |
| |
| switch (VG_(get_supp_kind)(su)) { |
| case ParamSupp: |
| return (ekind == ParamErr |
| && VG_STREQ(VG_(get_error_string)(err), |
| VG_(get_supp_string)(su))); |
| |
| case CoreMemSupp: |
| return (ekind == CoreMemErr |
| && VG_STREQ(VG_(get_error_string)(err), |
| VG_(get_supp_string)(su))); |
| |
| case Value0Supp: su_size = 0; goto value_case; |
| case Value1Supp: su_size = 1; goto value_case; |
| case Value2Supp: su_size = 2; goto value_case; |
| case Value4Supp: su_size = 4; goto value_case; |
| case Value8Supp: su_size = 8; goto value_case; |
| case Value16Supp:su_size =16; goto value_case; |
| value_case: |
| return (ekind == ValueErr && err_extra->size == su_size); |
| |
| case Addr1Supp: su_size = 1; goto addr_case; |
| case Addr2Supp: su_size = 2; goto addr_case; |
| case Addr4Supp: su_size = 4; goto addr_case; |
| case Addr8Supp: su_size = 8; goto addr_case; |
| case Addr16Supp:su_size =16; goto addr_case; |
| addr_case: |
| return (ekind == AddrErr && err_extra->size == su_size); |
| |
| case FreeSupp: |
| return (ekind == FreeErr || ekind == FreeMismatchErr); |
| |
| case OverlapSupp: |
| return (ekind = OverlapErr); |
| |
| case LeakSupp: |
| return (ekind == LeakErr); |
| |
| case MempoolSupp: |
| return (ekind == IllegalMempoolErr); |
| |
| default: |
| VG_(printf)("Error:\n" |
| " unknown suppression type %d\n", |
| VG_(get_supp_kind)(su)); |
| VG_(tool_panic)("unknown suppression type in " |
| "TL_(error_matches_suppression)"); |
| } |
| } |
| |
| Char* TL_(get_error_name) ( Error* err ) |
| { |
| Char* s; |
| switch (VG_(get_error_kind)(err)) { |
| case ParamErr: return "Param"; |
| case UserErr: return NULL; /* Can't suppress User errors */ |
| case FreeMismatchErr: return "Free"; |
| case IllegalMempoolErr: return "Mempool"; |
| case FreeErr: return "Free"; |
| case AddrErr: |
| switch ( ((MAC_Error*)VG_(get_error_extra)(err))->size ) { |
| case 1: return "Addr1"; |
| case 2: return "Addr2"; |
| case 4: return "Addr4"; |
| case 8: return "Addr8"; |
| case 16: return "Addr16"; |
| default: VG_(tool_panic)("unexpected size for Addr"); |
| } |
| |
| case ValueErr: |
| switch ( ((MAC_Error*)VG_(get_error_extra)(err))->size ) { |
| case 0: return "Cond"; |
| case 1: return "Value1"; |
| case 2: return "Value2"; |
| case 4: return "Value4"; |
| case 8: return "Value8"; |
| case 16: return "Value16"; |
| default: VG_(tool_panic)("unexpected size for Value"); |
| } |
| case CoreMemErr: return "CoreMem"; |
| case OverlapErr: return "Overlap"; |
| case LeakErr: return "Leak"; |
| default: VG_(tool_panic)("get_error_name: unexpected type"); |
| } |
| VG_(printf)(s); |
| } |
| |
| void TL_(print_extra_suppression_info) ( Error* err ) |
| { |
| if (ParamErr == VG_(get_error_kind)(err)) { |
| VG_(printf)(" %s\n", VG_(get_error_string)(err)); |
| } |
| } |
| |
| /*------------------------------------------------------------*/ |
| /*--- Crude profiling machinery. ---*/ |
| /*------------------------------------------------------------*/ |
| |
| /* Event index. If just the name of the fn is given, this means the |
| number of calls to the fn. Otherwise it is the specified event. |
| Ones marked 'M' are MemCheck only. Ones marked 'A' are AddrCheck only. |
| The rest are shared. |
| |
| 10 alloc_secondary_map |
| |
| 20 get_abit |
| M 21 get_vbyte |
| 22 set_abit |
| M 23 set_vbyte |
| 24 get_abits4_ALIGNED |
| M 25 get_vbytes4_ALIGNED |
| |
| 30 set_address_range_perms |
| 31 set_address_range_perms(lower byte loop) |
| 32 set_address_range_perms(quadword loop) |
| 33 set_address_range_perms(upper byte loop) |
| |
| 35 make_noaccess |
| 36 make_writable |
| 37 make_readable |
| A 38 make_accessible |
| |
| 40 copy_address_range_state |
| 41 copy_address_range_state(byte loop) |
| 42 check_writable |
| 43 check_writable(byte loop) |
| 44 check_readable |
| 45 check_readable(byte loop) |
| 46 check_readable_asciiz |
| 47 check_readable_asciiz(byte loop) |
| A 48 check_accessible |
| A 49 check_accessible(byte loop) |
| |
| 50 make_noaccess_aligned |
| 51 make_writable_aligned |
| |
| M 60 helperc_LOADV4 |
| M 61 helperc_STOREV4 |
| M 62 helperc_LOADV2 |
| M 63 helperc_STOREV2 |
| M 64 helperc_LOADV1 |
| M 65 helperc_STOREV1 |
| |
| A 66 helperc_ACCESS4 |
| A 67 helperc_ACCESS2 |
| A 68 helperc_ACCESS1 |
| |
| M 70 rim_rd_V4_SLOWLY |
| M 71 rim_wr_V4_SLOWLY |
| M 72 rim_rd_V2_SLOWLY |
| M 73 rim_wr_V2_SLOWLY |
| M 74 rim_rd_V1_SLOWLY |
| M 75 rim_wr_V1_SLOWLY |
| |
| A 76 ACCESS4_SLOWLY |
| A 77 ACCESS2_SLOWLY |
| A 78 ACCESS1_SLOWLY |
| |
| 80 fpu_read |
| 81 fpu_read aligned 4 |
| 82 fpu_read aligned 8 |
| 83 fpu_read 2 |
| 84 fpu_read 10/28/108/512 |
| |
| M 85 fpu_write |
| M 86 fpu_write aligned 4 |
| M 87 fpu_write aligned 8 |
| M 88 fpu_write 2 |
| M 89 fpu_write 10/28/108/512 |
| |
| 90 fpu_access |
| 91 fpu_access aligned 4 |
| 92 fpu_access aligned 8 |
| 93 fpu_access 2 |
| 94 fpu_access 10/28/108/512 |
| |
| 100 fpu_access_check_SLOWLY |
| 101 fpu_access_check_SLOWLY(byte loop) |
| |
| 110 new_mem_stack_4 |
| 111 new_mem_stack_8 |
| 112 new_mem_stack_12 |
| 113 new_mem_stack_16 |
| 114 new_mem_stack_32 |
| 115 new_mem_stack |
| |
| 120 die_mem_stack_4 |
| 121 die_mem_stack_8 |
| 122 die_mem_stack_12 |
| 123 die_mem_stack_16 |
| 124 die_mem_stack_32 |
| 125 die_mem_stack |
| */ |
| |
| #ifdef MAC_PROFILE_MEMORY |
| |
| UInt MAC_(event_ctr)[N_PROF_EVENTS]; |
| |
| static void init_prof_mem ( void ) |
| { |
| Int i; |
| for (i = 0; i < N_PROF_EVENTS; i++) |
| MAC_(event_ctr)[i] = 0; |
| } |
| |
| static void done_prof_mem ( void ) |
| { |
| Int i; |
| for (i = 0; i < N_PROF_EVENTS; i++) { |
| if ((i % 10) == 0) |
| VG_(printf)("\n"); |
| if (MAC_(event_ctr)[i] > 0) |
| VG_(printf)( "prof mem event %2d: %d\n", i, MAC_(event_ctr)[i] ); |
| } |
| VG_(printf)("\n"); |
| } |
| |
| #else |
| |
| static void init_prof_mem ( void ) { } |
| static void done_prof_mem ( void ) { } |
| |
| #endif |
| |
| /*------------------------------------------------------------*/ |
| /*--- Common initialisation + finalisation ---*/ |
| /*------------------------------------------------------------*/ |
| |
| void MAC_(common_pre_clo_init)(void) |
| { |
| MAC_(malloc_list) = VG_(HT_construct)(); |
| MAC_(mempool_list) = VG_(HT_construct)(); |
| init_prof_mem(); |
| } |
| |
| void MAC_(common_fini)(void (*leak_check)(ThreadId tid, LeakCheckMode mode)) |
| { |
| MAC_(print_malloc_stats)(); |
| |
| if (VG_(clo_verbosity) == 1) { |
| if (MAC_(clo_leak_check) == LC_Off) |
| VG_(message)(Vg_UserMsg, |
| "For a detailed leak analysis, rerun with: --leak-check=yes"); |
| |
| VG_(message)(Vg_UserMsg, |
| "For counts of detected errors, rerun with: -v"); |
| } |
| if (MAC_(clo_leak_check) != LC_Off) |
| leak_check(1/*bogus ThreadId*/, MAC_(clo_leak_check)); |
| |
| done_prof_mem(); |
| } |
| |
| /*------------------------------------------------------------*/ |
| /*--- Common client request handling ---*/ |
| /*------------------------------------------------------------*/ |
| |
| Bool MAC_(handle_common_client_requests)(ThreadId tid, UWord* arg, UWord* ret ) |
| { |
| Char* err = |
| "The client requests VALGRIND_MALLOCLIKE_BLOCK and\n" |
| " VALGRIND_FREELIKE_BLOCK have moved. Please recompile your\n" |
| " program to incorporate the updates in the Valgrind header files.\n" |
| " You shouldn't need to change the text of your program at all.\n" |
| " Everything should then work as before. Sorry for the bother.\n"; |
| |
| switch (arg[0]) { |
| case VG_USERREQ__COUNT_LEAKS: { /* count leaked bytes */ |
| UWord** argp = (UWord**)arg; |
| // MAC_(bytes_leaked) et al were set by the last leak check (or zero |
| // if no prior leak checks performed). |
| *argp[1] = MAC_(bytes_leaked) + MAC_(bytes_indirect); |
| *argp[2] = MAC_(bytes_dubious); |
| *argp[3] = MAC_(bytes_reachable); |
| *argp[4] = MAC_(bytes_suppressed); |
| // there is no argp[5] |
| //*argp[5] = MAC_(bytes_indirect); |
| // XXX need to make *argp[1-4] readable |
| *ret = 0; |
| return True; |
| } |
| case VG_USERREQ__MALLOCLIKE_BLOCK__OLD_DO_NOT_USE: |
| case VG_USERREQ__FREELIKE_BLOCK__OLD_DO_NOT_USE: |
| VG_(tool_panic)(err); |
| |
| case VG_USERREQ__MALLOCLIKE_BLOCK: { |
| Addr p = (Addr)arg[1]; |
| SizeT sizeB = arg[2]; |
| UInt rzB = arg[3]; |
| Bool is_zeroed = (Bool)arg[4]; |
| |
| MAC_(new_block) ( tid, p, sizeB, /*ignored*/0, rzB, is_zeroed, |
| MAC_AllocCustom, MAC_(malloc_list) ); |
| return True; |
| } |
| case VG_USERREQ__FREELIKE_BLOCK: { |
| Addr p = (Addr)arg[1]; |
| UInt rzB = arg[2]; |
| |
| MAC_(handle_free) ( tid, p, rzB, MAC_AllocCustom ); |
| return True; |
| } |
| |
| case _VG_USERREQ__MEMCHECK_GET_RECORD_OVERLAP: |
| *ret = (Addr)MAC_(record_overlap_error); |
| return True; |
| |
| case VG_USERREQ__CREATE_MEMPOOL: { |
| Addr pool = (Addr)arg[1]; |
| UInt rzB = arg[2]; |
| Bool is_zeroed = (Bool)arg[3]; |
| |
| MAC_(create_mempool) ( pool, rzB, is_zeroed ); |
| return True; |
| } |
| |
| case VG_USERREQ__DESTROY_MEMPOOL: { |
| Addr pool = (Addr)arg[1]; |
| |
| MAC_(destroy_mempool) ( pool ); |
| return True; |
| } |
| |
| case VG_USERREQ__MEMPOOL_ALLOC: { |
| Addr pool = (Addr)arg[1]; |
| Addr addr = (Addr)arg[2]; |
| UInt size = arg[3]; |
| |
| MAC_(mempool_alloc) ( tid, pool, addr, size ); |
| return True; |
| } |
| |
| case VG_USERREQ__MEMPOOL_FREE: { |
| Addr pool = (Addr)arg[1]; |
| Addr addr = (Addr)arg[2]; |
| |
| MAC_(mempool_free) ( pool, addr ); |
| return True; |
| } |
| |
| default: |
| return False; |
| } |
| } |
| |
| /*--------------------------------------------------------------------*/ |
| /*--- end mac_needs.c ---*/ |
| /*--------------------------------------------------------------------*/ |