From 3347e271cd0ddb7da133ad0e66826cb559e1dd14 Mon Sep 17 00:00:00 2001 From: mquinson Date: Mon, 7 Jan 2008 22:39:07 +0000 Subject: [PATCH] split windows and linux backtrace setup out of the main exception file git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/simgrid/simgrid/trunk@5174 48e7efb5-ca39-0410-a469-dd3cf9ba447f --- src/Makefile.am | 2 + src/Makefile.in | 36 +- src/ex_unit.c | 2 +- src/simgrid_units_main.c | 15 +- src/xbt/backtrace_linux.c | 244 +++++++++++++ src/xbt/backtrace_windows.c | 439 +++++++++++++++++++++++ src/xbt/ex.c | 687 +----------------------------------- 7 files changed, 730 insertions(+), 695 deletions(-) create mode 100644 src/xbt/backtrace_linux.c create mode 100644 src/xbt/backtrace_windows.c diff --git a/src/Makefile.am b/src/Makefile.am index c321a1c3c3..a9f109c774 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -36,6 +36,7 @@ EXTRA_DIST= \ xbt/xbt_jcontext.h \ xbt/log_private.h \ xbt/ex_interface.h \ + xbt/backtrace_linux.c xbt/backtrace_windows.c \ \ surf/maxmin_private.h \ surf/trace_mgr_private.h \ @@ -320,6 +321,7 @@ libsimgrid_la_SOURCES = $(XBT_SRC) $(SURF_SRC) $(GTNETS_USED) $(SDP_SRC) \ $(MSG_SRC) $(SIMDAG_SRC) \ $(GRAS_COMMON_SRC) $(GRAS_SG_SRC) $(AMOK_SRC) libsimgrid_la_LDFLAGS = -no-undefined $(VERSION_INFO) @SIMGRID_DEP@ @LD_DYNAMIC_FLAGS@ -lm +# -Wl,--entry -Wl,simgrid_version # Please do not add -no-undefined to libsmpi_la_LDFLAGS: # smpi_simulated_main is indeed defined in user code, and undef in the diff --git a/src/Makefile.in b/src/Makefile.in index 239fc1b8bf..3f5b6834b0 100644 --- a/src/Makefile.in +++ b/src/Makefile.in @@ -142,16 +142,17 @@ am__libsimgrid_la_SOURCES_DIST = xbt/snprintf.c xbt/xbt_str.c \ simix/smx_action.c simix/smx_synchro.c xbt/xbt_context.c \ msg/msg_config.c msg/task.c msg/host.c msg/m_process.c \ msg/gos.c msg/global.c msg/environment.c msg/deployment.c \ - simdag/sd_global.c simdag/sd_link.c simdag/sd_task.c \ - simdag/sd_workstation.c gras/gras.c gras/Transport/transport.c \ - gras/Transport/transport_private.h gras/Msg/gras_msg_mod.c \ - gras/Msg/gras_msg_types.c gras/Msg/gras_msg_exchange.c \ - gras/Msg/gras_msg_listener.c gras/Msg/rpc.c gras/Msg/timer.c \ - gras/Msg/msg_interface.h gras/Msg/msg_private.h \ - gras/Virtu/process.c gras/Virtu/gras_module.c \ - gras/DataDesc/ddt_create.c gras/DataDesc/ddt_convert.c \ - gras/DataDesc/ddt_exchange.c gras/DataDesc/cbps.c \ - gras/DataDesc/datadesc.c gras/DataDesc/datadesc_interface.h \ + msg/msg_mailbox.c simdag/sd_global.c simdag/sd_link.c \ + simdag/sd_task.c simdag/sd_workstation.c gras/gras.c \ + gras/Transport/transport.c gras/Transport/transport_private.h \ + gras/Msg/gras_msg_mod.c gras/Msg/gras_msg_types.c \ + gras/Msg/gras_msg_exchange.c gras/Msg/gras_msg_listener.c \ + gras/Msg/rpc.c gras/Msg/timer.c gras/Msg/msg_interface.h \ + gras/Msg/msg_private.h gras/Virtu/process.c \ + gras/Virtu/gras_module.c gras/DataDesc/ddt_create.c \ + gras/DataDesc/ddt_convert.c gras/DataDesc/ddt_exchange.c \ + gras/DataDesc/cbps.c gras/DataDesc/datadesc.c \ + gras/DataDesc/datadesc_interface.h \ gras/DataDesc/datadesc_private.h gras/DataDesc/ddt_parse.c \ gras/DataDesc/ddt_parse.yy.c gras/DataDesc/ddt_parse.yy.h \ gras/Transport/sg_transport.c \ @@ -180,7 +181,7 @@ am__objects_12 = smx_global.lo smx_deployment.lo smx_config.lo \ smx_synchro.lo am__objects_13 = xbt_context.lo am__objects_14 = msg_config.lo task.lo host.lo m_process.lo gos.lo \ - global.lo environment.lo deployment.lo + global.lo environment.lo deployment.lo msg_mailbox.lo am__objects_15 = sd_global.lo sd_link.lo sd_task.lo sd_workstation.lo am__objects_16 = xbt_sg_synchro.lo xbt_sg_time.lo am__objects_17 = sg_transport.lo transport_plugin_sg.lo sg_emul.lo \ @@ -396,7 +397,8 @@ EXTRA_DIST = portable.h xbt/mallocator_private.h xbt/dynar_private.h \ xbt/graph_private.h xbt/graphxml_parse.c xbt/graphxml.l \ xbt/graphxml.c xbt/graphxml.dtd xbt/xbt_context_private.h \ xbt/xbt_context_factory.h xbt/xbt_jcontext.h xbt/log_private.h \ - xbt/ex_interface.h surf/maxmin_private.h \ + xbt/ex_interface.h xbt/backtrace_linux.c \ + xbt/backtrace_windows.c surf/maxmin_private.h \ surf/trace_mgr_private.h surf/surf_private.h \ surf/cpu_private.h surf/workstation_private.h \ surf/surf_timer_private.h surf/surfxml_parse.c \ @@ -533,7 +535,7 @@ SMPI_SRC = \ MSG_SRC = msg/msg_config.c \ msg/task.c msg/host.c msg/m_process.c msg/gos.c \ - msg/global.c msg/environment.c msg/deployment.c + msg/global.c msg/environment.c msg/deployment.c msg/msg_mailbox.c JMSG_C_SRC = \ xbt/xbt_jcontext.c \ @@ -821,6 +823,7 @@ distclean-compile: @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/mallocator.Plo@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/maxmin.Plo@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/msg_config.Plo@am__quote@ +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/msg_mailbox.Plo@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/network.Plo@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/network_gtnets.Plo@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/peermanagement.Plo@am__quote@ @@ -1586,6 +1589,13 @@ deployment.lo: msg/deployment.c @AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@ @am__fastdepCC_FALSE@ $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o deployment.lo `test -f 'msg/deployment.c' || echo '$(srcdir)/'`msg/deployment.c +msg_mailbox.lo: msg/msg_mailbox.c +@am__fastdepCC_TRUE@ $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT msg_mailbox.lo -MD -MP -MF $(DEPDIR)/msg_mailbox.Tpo -c -o msg_mailbox.lo `test -f 'msg/msg_mailbox.c' || echo '$(srcdir)/'`msg/msg_mailbox.c +@am__fastdepCC_TRUE@ mv -f $(DEPDIR)/msg_mailbox.Tpo $(DEPDIR)/msg_mailbox.Plo +@AMDEP_TRUE@@am__fastdepCC_FALSE@ source='msg/msg_mailbox.c' object='msg_mailbox.lo' libtool=yes @AMDEPBACKSLASH@ +@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@ +@am__fastdepCC_FALSE@ $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o msg_mailbox.lo `test -f 'msg/msg_mailbox.c' || echo '$(srcdir)/'`msg/msg_mailbox.c + sd_global.lo: simdag/sd_global.c @am__fastdepCC_TRUE@ $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT sd_global.lo -MD -MP -MF $(DEPDIR)/sd_global.Tpo -c -o sd_global.lo `test -f 'simdag/sd_global.c' || echo '$(srcdir)/'`simdag/sd_global.c @am__fastdepCC_TRUE@ mv -f $(DEPDIR)/sd_global.Tpo $(DEPDIR)/sd_global.Plo diff --git a/src/ex_unit.c b/src/ex_unit.c index 261a8d92c0..2a50f99b73 100644 --- a/src/ex_unit.c +++ b/src/ex_unit.c @@ -8,7 +8,7 @@ /* GENERATED FILE, DO NOT EDIT */ /*******************************/ -# 419 "xbt/ex.c" +# 194 "xbt/ex.c" #include #include "xbt/ex.h" diff --git a/src/simgrid_units_main.c b/src/simgrid_units_main.c index 7e5de8d0f4..f65097ecb5 100644 --- a/src/simgrid_units_main.c +++ b/src/simgrid_units_main.c @@ -57,10 +57,6 @@ extern xbt_test_unit_t _xbt_current_unit; void test_config_use(void); /* SGU: END FILE */ - /* SGU: BEGIN FILE ./xbt/cunit.c */ - void test_expected_failure(void); - /* SGU: END FILE */ - /*******************************/ /* GENERATED FILE, DO NOT EDIT */ @@ -71,6 +67,8 @@ int main(int argc, char *argv[]) { char selection[1024]; int i; + int res; + /* SGU: BEGIN SUITES DECLARATION */ /* SGU: BEGIN FILE xbt/cunit.c */ suite = xbt_test_suite_by_name("cunit","Testsuite mechanism autotest"); @@ -128,11 +126,6 @@ int main(int argc, char *argv[]) { xbt_test_suite_push(suite, "use", test_config_use, "Data retrieving tests"); /* SGU: END FILE */ - /* SGU: BEGIN FILE ./xbt/cunit.c */ - suite = xbt_test_suite_by_name("cunit","Testsuite mechanism autotest"); - xbt_test_suite_push(suite, "expect", test_expected_failure, "expected failures"); - /* SGU: END FILE */ - /* SGU: END SUITES DECLARATION */ xbt_init(&argc,argv); @@ -180,7 +173,9 @@ int main(int argc, char *argv[]) { } /* Got all my tests to do */ - return xbt_test_run(selection); + res = xbt_test_run(selection); + xbt_exit(); + return res; } /*******************************/ /* GENERATED FILE, DO NOT EDIT */ diff --git a/src/xbt/backtrace_linux.c b/src/xbt/backtrace_linux.c new file mode 100644 index 0000000000..e517242a7a --- /dev/null +++ b/src/xbt/backtrace_linux.c @@ -0,0 +1,244 @@ +/* $Id: ex.c 5173 2008-01-07 22:10:52Z mquinson $ */ + +/* backtrace_linux - backtrace displaying on linux platform */ +/* This file is included by ex.c on need (have execinfo.h, popen & addrline)*/ + +/* Copyright (c) 2007 The SimGrid team */ +/* All rights reserved. */ + +/* This program is free software; you can redistribute it and/or modify it + * under the terms of the license (GNU LGPL) which comes with this package. */ + +extern char **environ; /* the environment, as specified by the opengroup */ + +void xbt_ex_setup_backtrace(xbt_ex_t *e) { + int i; + /* to get the backtrace from the libc */ + char **backtrace = backtrace_symbols (e->bt, e->used); + + /* To build the commandline of addr2line */ + char *cmd, *curr; + + /* to extract the addresses from the backtrace */ + char **addrs=xbt_new(char*,e->used); + char buff[256],*p; + + /* To read the output of addr2line */ + FILE *pipe; + char line_func[1024],line_pos[1024]; + + /* size (in char) of pointers on this arch */ + int addr_len=0; + + /* To search for the right executable path when not trivial */ + struct stat stat_buf; + char *binary_name = NULL; + + /* Some arches only have stubs of backtrace, no implementation (hppa comes to mind) */ + if (!e->used) + return; + + /* build the commandline */ + if (stat(xbt_binary_name,&stat_buf)) { + /* Damn. binary not in current dir. We'll have to dig the PATH to find it */ + int i; + for (i=0; environ[i]; i++) { + if (!strncmp("PATH=",environ[i], 5)) { + xbt_dynar_t path=xbt_str_split(environ[i] + 5, ":"); + unsigned int cpt; + char *data; + xbt_dynar_foreach(path, cpt, data) { + if (binary_name) + free(binary_name); + binary_name = bprintf("%s/%s",data,xbt_binary_name); + if (!stat(binary_name,&stat_buf)) { + /* Found. */ + DEBUG1("Looked in the PATH for the binary. Found %s",binary_name); + xbt_dynar_free(&path); + break; + } + } + if (stat(binary_name,&stat_buf)) { + /* not found */ + e->used = 1; + e->bt_strings = xbt_new(char*,1); + e->bt_strings[0] = bprintf("(binary '%s' not found the path)",xbt_binary_name); + return; + } + xbt_dynar_free(&path); + break; + } + } + } else { + binary_name = xbt_strdup(xbt_binary_name); + } + cmd = curr = xbt_new(char,strlen(ADDR2LINE)+25+strlen(binary_name)+32*e->used); + + curr += sprintf(curr,"%s -f -e %s ",ADDR2LINE,binary_name); + free(binary_name); + + for (i=0; iused;i++) { + /* retrieve this address */ + DEBUG2("Retrieving address number %d from '%s'", i, backtrace[i]); + snprintf(buff,256,"%s",strchr(backtrace[i],'[')+1); + p=strchr(buff,']'); + *p='\0'; + if (strcmp(buff,"(nil)")) + addrs[i]=bprintf("%s", buff); + else + addrs[i]=bprintf("0x0"); + DEBUG3("Set up a new address: %d, '%s'(%p)", i, addrs[i], addrs[i]); + + /* Add it to the command line args */ + curr+=sprintf(curr,"%s ",addrs[i]); + } + addr_len = strlen(addrs[0]); + + /* parse the output and build a new backtrace */ + e->bt_strings = xbt_new(char*,e->used); + + VERB1("Fire a first command: '%s'", cmd); + pipe = popen(cmd, "r"); + if (!pipe) { + CRITICAL0("Cannot fork addr2line to display the backtrace"); + abort(); + } + + for (i=0; iused; i++) { + DEBUG2("Looking for symbol %d, addr = '%s'", i, addrs[i]); + fgets(line_func,1024,pipe); + line_func[strlen(line_func)-1]='\0'; + fgets(line_pos,1024,pipe); + line_pos[strlen(line_pos)-1]='\0'; + + if (strcmp("??",line_func)) { + DEBUG2("Found static symbol %s() at %s", line_func, line_pos); + e->bt_strings[i] = bprintf("** In %s() at %s", line_func,line_pos); + } else { + /* Damn. The symbol is in a dynamic library. Let's get wild */ + char *maps_name; + FILE *maps; + char maps_buff[512]; + + long int addr,offset=0; + char *p,*p2; + + char *subcmd; + FILE *subpipe; + int found=0; + + /* let's look for the offset of this library in our addressing space */ + maps_name=bprintf("/proc/%d/maps",(int)getpid()); + maps=fopen(maps_name,"r"); + + sscanf(addrs[i],"%lx",&addr); + sprintf(maps_buff,"%#lx",addr); + + if (strcmp(addrs[i],maps_buff)) { + CRITICAL2("Cannot parse backtrace address '%s' (addr=%#lx)", + addrs[i], addr); + } + DEBUG2("addr=%s (as string) =%#lx (as number)",addrs[i],addr); + + while (!found) { + long int first, last; + if (fgets(maps_buff,512,maps) == NULL) + break; + if (i==0) { + maps_buff[strlen(maps_buff) -1]='\0'; + DEBUG1("map line: %s", maps_buff); + } + sscanf(maps_buff,"%lx",&first); + p=strchr(maps_buff,'-')+1; + sscanf(p,"%lx",&last); + if (first < addr && addr < last) { + offset = first; + found=1; + } + if (found) { + DEBUG3("%#lx in [%#lx-%#lx]", addr, first,last); + DEBUG0("Symbol found, map lines not further displayed (even if looking for next ones)"); + } + } + fclose(maps); + free(maps_name); + + if (!found) { + VERB0("Problem while reading the maps file. Following backtrace will be mangled."); + DEBUG1("No dynamic. Static symbol: %s", backtrace[i]); + e->bt_strings[i] = bprintf("** In ?? (%s)", backtrace[i]); + continue; + } + + /* Ok, Found the offset of the maps line containing the searched symbol. + We now need to substract this from the address we got from backtrace. + */ + + free(addrs[i]); + addrs[i] = bprintf("0x%0*lx",addr_len-2,addr-offset); + DEBUG2("offset=%#lx new addr=%s",offset,addrs[i]); + + /* Got it. We have our new address. Let's get the library path and we + are set */ + p = xbt_strdup(backtrace[i]); + if (p[0]=='[') { + /* library path not displayed in the map file either... */ + free(p); + sprintf(line_func,"??"); + } else { + p2 = strrchr(p,'('); + if (p2) *p2= '\0'; + p2 = strrchr(p,' '); + if(p2) *p2= '\0'; + + /* Here we go, fire an addr2line up */ + subcmd = bprintf("%s -f -e %s %s",ADDR2LINE,p, addrs[i]); + free(p); + VERB1("Fire a new command: '%s'",subcmd); + subpipe = popen(subcmd,"r"); + if (!subpipe) { + CRITICAL0("Cannot fork addr2line to display the backtrace"); + abort(); + } + fgets(line_func,1024,subpipe); + line_func[strlen(line_func)-1]='\0'; + fgets(line_pos,1024,subpipe); + line_pos[strlen(line_pos)-1]='\0'; + pclose(subpipe); + free(subcmd); + } + + /* check whether the trick worked */ + if (strcmp("??",line_func)) { + DEBUG2("Found dynamic symbol %s() at %s", line_func, line_pos); + e->bt_strings[i] = bprintf("** In %s() at %s", line_func,line_pos); + } else { + /* damn, nothing to do here. Let's print the raw address */ + DEBUG1("Dynamic symbol not found. Raw address = %s", backtrace[i]); + e->bt_strings[i] = bprintf("** In ?? at %s", backtrace[i]); + } + + } + free(addrs[i]); + + /* Mask the bottom of the stack */ + if (!strncmp("main",line_func,strlen("main")) || + !strncmp("xbt_thread_context_wrapper",line_func,strlen("xbt_thread_context_wrapper"))) { + int j; + for (j=i+1; jused; j++) + free(addrs[j]); + e->used = i; + + if (!strncmp("xbt_thread_context_wrapper",line_func,strlen("xbt_thread_context_wrapper"))) { + e->used++; + e->bt_strings[i] = bprintf("** (in a separate thread)"); + } + } + + + } + pclose(pipe); + free(addrs); + free(backtrace); + free(cmd); +} diff --git a/src/xbt/backtrace_windows.c b/src/xbt/backtrace_windows.c new file mode 100644 index 0000000000..c7229664e3 --- /dev/null +++ b/src/xbt/backtrace_windows.c @@ -0,0 +1,439 @@ +/* $Id: ex.c 5173 2008-01-07 22:10:52Z mquinson $ */ + +/* backtrace_windows - backtrace displaying on windows platform */ +/* This file is included by ex.c on need (windows x86) */ + +/* Copyright (c) 2007 The SimGrid team */ +/* All rights reserved. */ + +/* This program is free software; you can redistribute it and/or modify it + * under the terms of the license (GNU LGPL) which comes with this package. */ + +/* + * Win32 (x86) implementation backtrace, backtrace_symbols + * : support for application self-debugging. + */ + +/* Pointer function to SymInitialize() */ +typedef BOOL (WINAPI *xbt_pfn_sym_initialize_t)(HANDLE, PSTR , BOOL); + +/* Pointer function to SymCleanup() */ +typedef BOOL (WINAPI *xbt_pfn_sym_cleanup_t)(HANDLE hProcess); + +/* Pointer function to SymFunctionTableAccess() */ +typedef PVOID (WINAPI *xbt_pfn_sym_function_table_access_t)(HANDLE, DWORD); + +/* Pointer function to SymGetLineFromAddr() */ +typedef BOOL (WINAPI *xbt_pfn_sym_get_line_from_addr_t)(HANDLE, DWORD, PDWORD , PIMAGEHLP_LINE); + +/* Pointer function to SymGetModuleBase() */ +typedef DWORD (WINAPI *xbt_pfn_sym_get_module_base_t)(HANDLE,DWORD); + +/* Pointer function to SymGetOptions() */ +typedef DWORD (WINAPI *xbt_pfn_sym_get_options_t)(VOID); + +/* Pointer function to SymGetSymFromAddr() */ +typedef BOOL (WINAPI *xbt_pfn_sym_get_sym_from_addr_t)(HANDLE, DWORD, PDWORD , OUT PIMAGEHLP_SYMBOL); + +/* Pointer function to SymSetOptions() */ +typedef DWORD (WINAPI *xbt_pfn_sym_set_options_t)(DWORD); + +/* Pointer function to StackWalk() */ +typedef BOOL (WINAPI *xbt_pfn_stack_walk_t)(DWORD, HANDLE, HANDLE ,LPSTACKFRAME, PVOID,PREAD_PROCESS_MEMORY_ROUTINE, PFUNCTION_TABLE_ACCESS_ROUTINE, PGET_MODULE_BASE_ROUTINE, PTRANSLATE_ADDRESS_ROUTINE); + +/* This structure represents the debug_help library used interface */ +typedef struct s_xbt_debug_help +{ + HINSTANCE instance; + HANDLE process_handle; + xbt_pfn_sym_initialize_t sym_initialize; + xbt_pfn_sym_cleanup_t sym_cleanup; + xbt_pfn_sym_function_table_access_t sym_function_table_access; + xbt_pfn_sym_get_line_from_addr_t sym_get_line_from_addr; + xbt_pfn_sym_get_module_base_t sym_get_module_base; + xbt_pfn_sym_get_options_t sym_get_options; + xbt_pfn_sym_get_sym_from_addr_t sym_get_sym_from_addr; + xbt_pfn_sym_set_options_t sym_set_options; + xbt_pfn_stack_walk_t stack_walk; +}s_xbt_debug_hlp_t,* xbt_debug_hlp_t; + + +/* the address to the unique reference to the debug help library interface */ +static xbt_debug_hlp_t +dbg_hlp = NULL; + +/* initialize the debug help library */ +static int +dbg_hlp_init(HANDLE process_handle); + +/* finalize the debug help library */ +static int +dbg_hlp_finalize(void); + +/* + * backtrace() function. + * + * Returns a backtrace for the calling program, in the array + * pointed to by buffer. A backtrace is the series of currently active + * function calls for the program. Each item in the array pointed to by + * buffer is of type void *, and is the return address from the corre- + * sponding stack frame. The size argument specifies the maximum number + * of addresses that can be stored in buffer. If the backtrace is larger + * than size, then the addresses corresponding to the size most recent + * function calls are returned; to obtain the complete backtrace, make + * sure that buffer and size are large enough. + */ + +int +backtrace (void **buffer, int size); + +/* + * backtrace_symbols() function. + * + * Given the set of addresses returned by backtrace() in buffer, back- + * trace_symbols() translates the addresses into an array of strings containing + * the name, the source file and the line number or the las called functions. + */ +char ** +backtrace_symbols (void *const *buffer, int size); + +#endif + +void xbt_ex_setup_backtrace(xbt_ex_t *e) { +int i; +char **backtrace = backtrace_symbols (e->bt, e->used); + + /* parse the output and build a new backtrace */ + e->bt_strings = xbt_new(char*,e->used); + + + for(i=0; iused; i++) + { + e->bt_strings[i] = xbt_strdup(backtrace[i]); + free(backtrace[i]); + } + + free(backtrace); +} + +int +backtrace (void **buffer, int size) +{ + int pos = 0; + STACKFRAME* stack_frame; + int first = 1; + + IMAGEHLP_SYMBOL * pSym; + unsigned long offset = 0; + IMAGEHLP_LINE line_info = {0}; + byte __buffer[(sizeof(SYMBOL_INFO) +MAX_SYM_NAME * sizeof(TCHAR) + sizeof(ULONG64) - 1) / sizeof(ULONG64)]; + + CONTEXT context = {CONTEXT_FULL}; + GetThreadContext(GetCurrentThread(), &context); + + /* ebp points on stack base */ + /* esp points on stack pointer, ie on last stacked element (current element) */ + _asm call $+5 + _asm pop eax + _asm mov context.Eip, eax + _asm mov eax, esp + _asm mov context.Esp, eax + _asm mov context.Ebp, ebp + + dbg_hlp_init(GetCurrentProcess()); + + if((NULL == dbg_hlp) || (size <= 0) || (NULL == buffer)) + { + errno = EINVAL; + return 0; + } + + for(pos = 0; pos < size; pos++) + buffer[pos] = NULL; + + pos = 0; + + pSym = (IMAGEHLP_SYMBOL*)__buffer; + + pSym->SizeOfStruct = sizeof(IMAGEHLP_SYMBOL); + pSym->MaxNameLength = MAX_SYM_NAME; + + + line_info.SizeOfStruct = sizeof(IMAGEHLP_LINE); + + + while(pos < size) + { + stack_frame = (void*)calloc(1,sizeof(STACKFRAME)); + + if(!stack_frame) + { + errno = ENOMEM; + break; + } + + stack_frame->AddrPC.Offset = context.Eip; + stack_frame->AddrPC.Mode = AddrModeFlat; + + stack_frame->AddrFrame.Offset = context.Ebp; + stack_frame->AddrFrame.Mode = AddrModeFlat; + + stack_frame->AddrStack.Offset = context.Esp; + stack_frame->AddrStack.Mode = AddrModeFlat; + + if((*(dbg_hlp->stack_walk))( + IMAGE_FILE_MACHINE_I386, + dbg_hlp->process_handle, + GetCurrentThread(), + stack_frame, + &context, + NULL, + dbg_hlp->sym_function_table_access, + dbg_hlp->sym_get_module_base, + NULL) + && !first) + { + if(stack_frame->AddrReturn.Offset) + { + + if((*(dbg_hlp->sym_get_sym_from_addr))(dbg_hlp->process_handle,stack_frame->AddrPC.Offset, &offset,pSym)) + { + if((*(dbg_hlp->sym_get_line_from_addr))(dbg_hlp->process_handle,stack_frame->AddrPC.Offset, &offset,&line_info)) + buffer[pos++] = (void*)stack_frame; + } + } + else + { + free(stack_frame); /* no symbol or no line info */ + break; + } + } + else + { + free(stack_frame); + + if(first) + first = 0; + else + break; + } + } + + return pos; +} + +char ** +backtrace_symbols (void *const *buffer, int size) +{ + int pos; + int success = 0; + char** strings; + STACKFRAME* stack_frame; + IMAGEHLP_SYMBOL * pSym; + unsigned long offset = 0; + IMAGEHLP_LINE line_info = {0}; + IMAGEHLP_MODULE module = {0}; + byte __buffer[(sizeof(SYMBOL_INFO) +MAX_SYM_NAME * sizeof(TCHAR) + sizeof(ULONG64) - 1) / sizeof(ULONG64)]; + + if((NULL == dbg_hlp) || (size <= 0) || (NULL == buffer)) + { + errno = EINVAL; + return NULL; + } + + strings = (char**)calloc(size,sizeof(char*)); + + if(NULL == strings) + { + errno = ENOMEM; + return NULL; + } + + pSym = (IMAGEHLP_SYMBOL*)__buffer; + + pSym->SizeOfStruct = sizeof(IMAGEHLP_SYMBOL); + pSym->MaxNameLength = MAX_SYM_NAME; + + + line_info.SizeOfStruct = sizeof(IMAGEHLP_LINE); + module.SizeOfStruct = sizeof(IMAGEHLP_MODULE); + + for(pos = 0; pos < size; pos++) + { + stack_frame = (STACKFRAME*)(buffer[pos]); + + if(NULL != stack_frame) + { + + if((*(dbg_hlp->sym_get_sym_from_addr))(dbg_hlp->process_handle,stack_frame->AddrPC.Offset, &offset,pSym)) + { + if((*(dbg_hlp->sym_get_line_from_addr))(dbg_hlp->process_handle,stack_frame->AddrPC.Offset, &offset,&line_info)) + { + strings[pos] = bprintf("** In %s() at %s:%d", pSym->Name,line_info.FileName,line_info.LineNumber); + } + else + { + strings[pos] = bprintf("** In %s()", pSym->Name); + } + success = 1; + } + else + { + strings[pos] = xbt_strdup("** "); + } + + free(stack_frame); + } + else + break; + } + + if(!success) + { + free(strings); + strings = NULL; + } + + dbg_hlp_finalize(); + + return strings; +} + +static int +dbg_hlp_init(HANDLE process_handle) +{ + if(dbg_hlp) + { + /* debug help is already loaded */ + return 0; + } + + /* allocation */ + dbg_hlp = (xbt_debug_hlp_t)calloc(1,sizeof(s_xbt_debug_hlp_t)); + + if(!dbg_hlp) + return ENOMEM; + + /* load the library */ + dbg_hlp->instance = LoadLibraryA("Dbghelp.dll"); + + if(!(dbg_hlp->instance)) + { + free(dbg_hlp); + dbg_hlp = NULL; + return (int)GetLastError(); + } + + /* get the pointers to debug help library exported functions */ + + if(!((dbg_hlp->sym_initialize) = (xbt_pfn_sym_initialize_t)GetProcAddress(dbg_hlp->instance,"SymInitialize"))) + { + FreeLibrary(dbg_hlp->instance); + free(dbg_hlp); + dbg_hlp = NULL; + return (int)GetLastError(); + } + + if(!((dbg_hlp->sym_cleanup) = (xbt_pfn_sym_cleanup_t)GetProcAddress(dbg_hlp->instance,"SymCleanup"))) + { + FreeLibrary(dbg_hlp->instance); + free(dbg_hlp); + dbg_hlp = NULL; + return (int)GetLastError(); + } + + if(!((dbg_hlp->sym_function_table_access) = (xbt_pfn_sym_function_table_access_t)GetProcAddress(dbg_hlp->instance,"SymFunctionTableAccess"))) + { + FreeLibrary(dbg_hlp->instance); + free(dbg_hlp); + dbg_hlp = NULL; + return (int)GetLastError(); + } + + if(!((dbg_hlp->sym_get_line_from_addr) = (xbt_pfn_sym_get_line_from_addr_t)GetProcAddress(dbg_hlp->instance,"SymGetLineFromAddr"))) + { + FreeLibrary(dbg_hlp->instance); + free(dbg_hlp); + dbg_hlp = NULL; + return (int)GetLastError(); + } + + if(!((dbg_hlp->sym_get_module_base) = (xbt_pfn_sym_get_module_base_t)GetProcAddress(dbg_hlp->instance,"SymGetModuleBase"))) + { + FreeLibrary(dbg_hlp->instance); + free(dbg_hlp); + dbg_hlp = NULL; + return (int)GetLastError(); + } + + if(!((dbg_hlp->sym_get_options) = (xbt_pfn_sym_get_options_t)GetProcAddress(dbg_hlp->instance,"SymGetOptions"))) + { + FreeLibrary(dbg_hlp->instance); + free(dbg_hlp); + dbg_hlp = NULL; + return (int)GetLastError(); + } + + if(!((dbg_hlp->sym_get_sym_from_addr) = (xbt_pfn_sym_get_sym_from_addr_t)GetProcAddress(dbg_hlp->instance,"SymGetSymFromAddr"))) + { + FreeLibrary(dbg_hlp->instance); + free(dbg_hlp); + dbg_hlp = NULL; + return (int)GetLastError(); + } + + if(!((dbg_hlp->sym_set_options) = (xbt_pfn_sym_set_options_t)GetProcAddress(dbg_hlp->instance,"SymSetOptions"))) + { + FreeLibrary(dbg_hlp->instance); + free(dbg_hlp); + dbg_hlp = NULL; + return (int)GetLastError(); + } + + if(!((dbg_hlp->stack_walk) = (xbt_pfn_stack_walk_t)GetProcAddress(dbg_hlp->instance,"StackWalk"))) + { + FreeLibrary(dbg_hlp->instance); + free(dbg_hlp); + dbg_hlp = NULL; + return (int)GetLastError(); + } + + dbg_hlp->process_handle = process_handle; + + (*(dbg_hlp->sym_set_options))((*(dbg_hlp->sym_get_options))() | SYMOPT_LOAD_LINES | SYMOPT_DEFERRED_LOADS); + + if(!(*(dbg_hlp->sym_initialize))(dbg_hlp->process_handle,0,1)) + { + FreeLibrary(dbg_hlp->instance); + free(dbg_hlp); + dbg_hlp = NULL; + return (int)GetLastError(); + } + + + return 0; +} + +static int +dbg_hlp_finalize(void) +{ + if(!dbg_hlp) + return EINVAL; + + if(!(*(dbg_hlp->sym_cleanup))(dbg_hlp->process_handle)) + return (int)GetLastError(); + + if(!FreeLibrary(dbg_hlp->instance)) + return (int)GetLastError(); + + free(dbg_hlp); + dbg_hlp = NULL; + + return 0; +} + +/* dummy implementation. We won't use the result, but ex.h needs it to be defined */ +int backtrace (void **__array, int __size) { + return 0; +} + diff --git a/src/xbt/ex.c b/src/xbt/ex.c index f9e62b1f5b..091a4cd46d 100644 --- a/src/xbt/ex.c +++ b/src/xbt/ex.c @@ -23,103 +23,17 @@ #include "gras/Virtu/virtu_interface.h" /* gras_os_myname */ #include "xbt/ex_interface.h" -#if (defined(WIN32) && defined(_M_IX86)) -#include +#undef HAVE_BACKTRACE +#if defined(HAVE_EXECINFO_H) && defined(HAVE_POPEN) && defined(ADDR2LINE) +# define HAVE_BACKTRACE 1 /* Hello linux box */ #endif -XBT_LOG_NEW_DEFAULT_SUBCATEGORY(xbt_ex,xbt,"Exception mecanism"); - -#if (defined(WIN32) && defined(_M_IX86)) - -/* - * Win32 (x86) implementation backtrace, backtrace_symbols - * : support for application self-debugging. - */ - -/* Pointer function to SymInitialize() */ -typedef BOOL (WINAPI *xbt_pfn_sym_initialize_t)(HANDLE, PSTR , BOOL); - -/* Pointer function to SymCleanup() */ -typedef BOOL (WINAPI *xbt_pfn_sym_cleanup_t)(HANDLE hProcess); - -/* Pointer function to SymFunctionTableAccess() */ -typedef PVOID (WINAPI *xbt_pfn_sym_function_table_access_t)(HANDLE, DWORD); - -/* Pointer function to SymGetLineFromAddr() */ -typedef BOOL (WINAPI *xbt_pfn_sym_get_line_from_addr_t)(HANDLE, DWORD, PDWORD , PIMAGEHLP_LINE); - -/* Pointer function to SymGetModuleBase() */ -typedef DWORD (WINAPI *xbt_pfn_sym_get_module_base_t)(HANDLE,DWORD); - -/* Pointer function to SymGetOptions() */ -typedef DWORD (WINAPI *xbt_pfn_sym_get_options_t)(VOID); - -/* Pointer function to SymGetSymFromAddr() */ -typedef BOOL (WINAPI *xbt_pfn_sym_get_sym_from_addr_t)(HANDLE, DWORD, PDWORD , OUT PIMAGEHLP_SYMBOL); - -/* Pointer function to SymSetOptions() */ -typedef DWORD (WINAPI *xbt_pfn_sym_set_options_t)(DWORD); - -/* Pointer function to StackWalk() */ -typedef BOOL (WINAPI *xbt_pfn_stack_walk_t)(DWORD, HANDLE, HANDLE ,LPSTACKFRAME, PVOID,PREAD_PROCESS_MEMORY_ROUTINE, PFUNCTION_TABLE_ACCESS_ROUTINE, PGET_MODULE_BASE_ROUTINE, PTRANSLATE_ADDRESS_ROUTINE); - -/* This structure representes the debug_help library used interface */ -typedef struct s_xbt_debug_help -{ - HINSTANCE instance; - HANDLE process_handle; - xbt_pfn_sym_initialize_t sym_initialize; - xbt_pfn_sym_cleanup_t sym_cleanup; - xbt_pfn_sym_function_table_access_t sym_function_table_access; - xbt_pfn_sym_get_line_from_addr_t sym_get_line_from_addr; - xbt_pfn_sym_get_module_base_t sym_get_module_base; - xbt_pfn_sym_get_options_t sym_get_options; - xbt_pfn_sym_get_sym_from_addr_t sym_get_sym_from_addr; - xbt_pfn_sym_set_options_t sym_set_options; - xbt_pfn_stack_walk_t stack_walk; -}s_xbt_debug_hlp_t,* xbt_debug_hlp_t; - - -/* the address to the unique reference to the debug help library interface */ -static xbt_debug_hlp_t -dbg_hlp = NULL; - -/* initialize the debug help library */ -static int -dbg_hlp_init(HANDLE process_handle); - -/* finalize the debug help library */ -static int -dbg_hlp_finalize(void); - -/* - * backtrace() function. - * - * Returns a backtrace for the calling program, in the array - * pointed to by buffer. A backtrace is the series of currently active - * function calls for the program. Each item in the array pointed to by - * buffer is of type void *, and is the return address from the corre- - * sponding stack frame. The size argument specifies the maximum number - * of addresses that can be stored in buffer. If the backtrace is larger - * than size, then the addresses corresponding to the size most recent - * function calls are returned; to obtain the complete backtrace, make - * sure that buffer and size are large enough. - */ - -int -backtrace (void **buffer, int size); - -/* - * backtrace_symbols() function. - * - * Given the set of addresses returned by backtrace() in buffer, back- - * trace_symbols() translates the addresses into an array of strings containing - * the name, the source file and the line number or the las called functions. - */ -char ** -backtrace_symbols (void *const *buffer, int size); +#if defined(WIN32) && defined(_M_IX86) +# define HAVE_BACKTRACE 1 /* Hello x86 windows box */ +#endif + -#endif +XBT_LOG_NEW_DEFAULT_SUBCATEGORY(xbt_ex,xbt,"Exception mecanism"); /* default __ex_ctx callback function */ ex_ctx_t *__xbt_ex_ctx_default(void) { @@ -142,7 +56,7 @@ ex_ctx_t *__xbt_ex_ctx_default(void) { void xbt_ex_setup_backtrace(xbt_ex_t *e); void xbt_backtrace_current(xbt_ex_t *e) { -#if defined(HAVE_EXECINFO_H) && defined(HAVE_POPEN) && defined(ADDR2LINE) || (defined(WIN32) && defined(_M_IX86)) +#ifdef HAVE_BACKTRACE e->used = backtrace((void**)e->bt,XBT_BACKTRACE_SIZE); e->bt_strings = NULL; xbt_ex_setup_backtrace(e); @@ -150,7 +64,7 @@ void xbt_backtrace_current(xbt_ex_t *e) { } void xbt_backtrace_display(xbt_ex_t *e) { -#if defined(HAVE_EXECINFO_H) && defined(HAVE_POPEN) && defined(ADDR2LINE) || (defined(WIN32) && defined(_M_IX86)) +#ifdef HAVE_BACKTRACE int i; if (e->used == 0) { @@ -179,258 +93,14 @@ void xbt_backtrace_display_current(void) { xbt_backtrace_display(&e); } -#ifndef WIN32 -extern char **environ; /* the environment, as specified by the opengroup */ -#endif - -void xbt_ex_setup_backtrace(xbt_ex_t *e) { #if defined(HAVE_EXECINFO_H) && defined(HAVE_POPEN) && defined(ADDR2LINE) - int i; - /* to get the backtrace from the libc */ - char **backtrace = backtrace_symbols (e->bt, e->used); - - /* To build the commandline of addr2line */ - char *cmd, *curr; - - /* to extract the addresses from the backtrace */ - char **addrs=xbt_new(char*,e->used); - char buff[256],*p; - - /* To read the output of addr2line */ - FILE *pipe; - char line_func[1024],line_pos[1024]; - - /* size (in char) of pointers on this arch */ - int addr_len=0; - - /* To search for the right executable path when not trivial */ - struct stat stat_buf; - char *binary_name = NULL; - - /* Some arches only have stubs of backtrace, no implementation (hppa comes to mind) */ - if (!e->used) - return; - - /* build the commandline */ - if (stat(xbt_binary_name,&stat_buf)) { - /* Damn. binary not in current dir. We'll have to dig the PATH to find it */ - int i; - for (i=0; environ[i]; i++) { - if (!strncmp("PATH=",environ[i], 5)) { - xbt_dynar_t path=xbt_str_split(environ[i] + 5, ":"); - unsigned int cpt; - char *data; - xbt_dynar_foreach(path, cpt, data) { - if (binary_name) - free(binary_name); - binary_name = bprintf("%s/%s",data,xbt_binary_name); - if (!stat(binary_name,&stat_buf)) { - /* Found. */ - DEBUG1("Looked in the PATH for the binary. Found %s",binary_name); - xbt_dynar_free(&path); - break; - } - } - if (stat(binary_name,&stat_buf)) { - /* not found */ - e->used = 1; - e->bt_strings = xbt_new(char*,1); - e->bt_strings[0] = bprintf("(binary '%s' not found the path)",xbt_binary_name); - return; - } - xbt_dynar_free(&path); - break; - } - } - } else { - binary_name = xbt_strdup(xbt_binary_name); - } - cmd = curr = xbt_new(char,strlen(ADDR2LINE)+25+strlen(binary_name)+32*e->used); - - curr += sprintf(curr,"%s -f -e %s ",ADDR2LINE,binary_name); - free(binary_name); - - for (i=0; iused;i++) { - /* retrieve this address */ - DEBUG2("Retrieving address number %d from '%s'", i, backtrace[i]); - snprintf(buff,256,"%s",strchr(backtrace[i],'[')+1); - p=strchr(buff,']'); - *p='\0'; - if (strcmp(buff,"(nil)")) - addrs[i]=bprintf("%s", buff); - else - addrs[i]=bprintf("0x0"); - DEBUG3("Set up a new address: %d, '%s'(%p)", i, addrs[i], addrs[i]); - - /* Add it to the command line args */ - curr+=sprintf(curr,"%s ",addrs[i]); - } - addr_len = strlen(addrs[0]); - - /* parse the output and build a new backtrace */ - e->bt_strings = xbt_new(char*,e->used); - - VERB1("Fire a first command: '%s'", cmd); - pipe = popen(cmd, "r"); - if (!pipe) { - CRITICAL0("Cannot fork addr2line to display the backtrace"); - abort(); - } - - for (i=0; iused; i++) { - DEBUG2("Looking for symbol %d, addr = '%s'", i, addrs[i]); - fgets(line_func,1024,pipe); - line_func[strlen(line_func)-1]='\0'; - fgets(line_pos,1024,pipe); - line_pos[strlen(line_pos)-1]='\0'; - - if (strcmp("??",line_func)) { - DEBUG2("Found static symbol %s() at %s", line_func, line_pos); - e->bt_strings[i] = bprintf("** In %s() at %s", line_func,line_pos); - } else { - /* Damn. The symbol is in a dynamic library. Let's get wild */ - char *maps_name; - FILE *maps; - char maps_buff[512]; - - long int addr,offset=0; - char *p,*p2; - - char *subcmd; - FILE *subpipe; - int found=0; - - /* let's look for the offset of this library in our addressing space */ - maps_name=bprintf("/proc/%d/maps",(int)getpid()); - maps=fopen(maps_name,"r"); - - sscanf(addrs[i],"%lx",&addr); - sprintf(maps_buff,"%#lx",addr); - - if (strcmp(addrs[i],maps_buff)) { - CRITICAL2("Cannot parse backtrace address '%s' (addr=%#lx)", - addrs[i], addr); - } - DEBUG2("addr=%s (as string) =%#lx (as number)",addrs[i],addr); - - while (!found) { - long int first, last; - if (fgets(maps_buff,512,maps) == NULL) - break; - if (i==0) { - maps_buff[strlen(maps_buff) -1]='\0'; - DEBUG1("map line: %s", maps_buff); - } - sscanf(maps_buff,"%lx",&first); - p=strchr(maps_buff,'-')+1; - sscanf(p,"%lx",&last); - if (first < addr && addr < last) { - offset = first; - found=1; - } - if (found) { - DEBUG3("%#lx in [%#lx-%#lx]", addr, first,last); - DEBUG0("Symbol found, map lines not further displayed (even if looking for next ones)"); - } - } - fclose(maps); - free(maps_name); - - if (!found) { - VERB0("Problem while reading the maps file. Following backtrace will be mangled."); - DEBUG1("No dynamic. Static symbol: %s", backtrace[i]); - e->bt_strings[i] = bprintf("** In ?? (%s)", backtrace[i]); - continue; - } - - /* Ok, Found the offset of the maps line containing the searched symbol. - We now need to substract this from the address we got from backtrace. - */ - - free(addrs[i]); - addrs[i] = bprintf("0x%0*lx",addr_len-2,addr-offset); - DEBUG2("offset=%#lx new addr=%s",offset,addrs[i]); - - /* Got it. We have our new address. Let's get the library path and we - are set */ - p = xbt_strdup(backtrace[i]); - if (p[0]=='[') { - /* library path not displayed in the map file either... */ - free(p); - sprintf(line_func,"??"); - } else { - p2 = strrchr(p,'('); - if (p2) *p2= '\0'; - p2 = strrchr(p,' '); - if(p2) *p2= '\0'; - - /* Here we go, fire an addr2line up */ - subcmd = bprintf("%s -f -e %s %s",ADDR2LINE,p, addrs[i]); - free(p); - VERB1("Fire a new command: '%s'",subcmd); - subpipe = popen(subcmd,"r"); - if (!subpipe) { - CRITICAL0("Cannot fork addr2line to display the backtrace"); - abort(); - } - fgets(line_func,1024,subpipe); - line_func[strlen(line_func)-1]='\0'; - fgets(line_pos,1024,subpipe); - line_pos[strlen(line_pos)-1]='\0'; - pclose(subpipe); - free(subcmd); - } - - /* check whether the trick worked */ - if (strcmp("??",line_func)) { - DEBUG2("Found dynamic symbol %s() at %s", line_func, line_pos); - e->bt_strings[i] = bprintf("** In %s() at %s", line_func,line_pos); - } else { - /* damn, nothing to do here. Let's print the raw address */ - DEBUG1("Dynamic symbol not found. Raw address = %s", backtrace[i]); - e->bt_strings[i] = bprintf("** In ?? at %s", backtrace[i]); - } - - } - free(addrs[i]); - - /* Mask the bottom of the stack */ - if (!strncmp("main",line_func,strlen("main")) || - !strncmp("xbt_thread_context_wrapper",line_func,strlen("xbt_thread_context_wrapper"))) { - int j; - for (j=i+1; jused; j++) - free(addrs[j]); - e->used = i; - - if (!strncmp("xbt_thread_context_wrapper",line_func,strlen("xbt_thread_context_wrapper"))) { - e->used++; - e->bt_strings[i] = bprintf("** (in a separate thread)"); - } - } - - - } - pclose(pipe); - free(addrs); - free(backtrace); - free(cmd); +# include "backtrace_linux.c" #elif (defined(WIN32) && defined (_M_IX86)) -int i; -char **backtrace = backtrace_symbols (e->bt, e->used); - - /* parse the output and build a new backtrace */ - e->bt_strings = xbt_new(char*,e->used); - - - for(i=0; iused; i++) - { - e->bt_strings[i] = xbt_strdup(backtrace[i]); - free(backtrace[i]); - } - - free(backtrace); +# include "backtrace_windows.c" +#else +void xbt_ex_setup_backtrace(xbt_ex_t *e) { +} #endif -} /** @brief shows an exception content and the associated stack if available */ void xbt_ex_display(xbt_ex_t *e) { @@ -454,7 +124,7 @@ void xbt_ex_display(xbt_ex_t *e) { if (!e->remote && !e->bt_strings) xbt_ex_setup_backtrace(e); -#if (defined(HAVE_EXECINFO_H) && defined(HAVE_POPEN) && defined(ADDR2LINE)) || (defined(WIN32) && defined(_M_IX86)) +#ifdef HAVE_BACKTRACE /* We have everything to build neat backtraces */ { int i; @@ -518,331 +188,6 @@ const char * xbt_ex_catname(xbt_errcat_t cat) { } } -#ifndef HAVE_EXECINFO_H -# if (defined(WIN32) && defined(_M_IX86)) -int -backtrace (void **buffer, int size) -{ - int pos = 0; - STACKFRAME* stack_frame; - int first = 1; - - IMAGEHLP_SYMBOL * pSym; - unsigned long offset = 0; - IMAGEHLP_LINE line_info = {0}; - byte __buffer[(sizeof(SYMBOL_INFO) +MAX_SYM_NAME * sizeof(TCHAR) + sizeof(ULONG64) - 1) / sizeof(ULONG64)]; - - CONTEXT context = {CONTEXT_FULL}; - GetThreadContext(GetCurrentThread(), &context); - - /* ebp points on stack base */ - /* esp points on stack pointer, ie on last stacked element (current element) */ - _asm call $+5 - _asm pop eax - _asm mov context.Eip, eax - _asm mov eax, esp - _asm mov context.Esp, eax - _asm mov context.Ebp, ebp - - dbg_hlp_init(GetCurrentProcess()); - - if((NULL == dbg_hlp) || (size <= 0) || (NULL == buffer)) - { - errno = EINVAL; - return 0; - } - - for(pos = 0; pos < size; pos++) - buffer[pos] = NULL; - - pos = 0; - - pSym = (IMAGEHLP_SYMBOL*)__buffer; - - pSym->SizeOfStruct = sizeof(IMAGEHLP_SYMBOL); - pSym->MaxNameLength = MAX_SYM_NAME; - - - line_info.SizeOfStruct = sizeof(IMAGEHLP_LINE); - - - while(pos < size) - { - stack_frame = (void*)calloc(1,sizeof(STACKFRAME)); - - if(!stack_frame) - { - errno = ENOMEM; - break; - } - - stack_frame->AddrPC.Offset = context.Eip; - stack_frame->AddrPC.Mode = AddrModeFlat; - - stack_frame->AddrFrame.Offset = context.Ebp; - stack_frame->AddrFrame.Mode = AddrModeFlat; - - stack_frame->AddrStack.Offset = context.Esp; - stack_frame->AddrStack.Mode = AddrModeFlat; - - if((*(dbg_hlp->stack_walk))( - IMAGE_FILE_MACHINE_I386, - dbg_hlp->process_handle, - GetCurrentThread(), - stack_frame, - &context, - NULL, - dbg_hlp->sym_function_table_access, - dbg_hlp->sym_get_module_base, - NULL) - && !first) - { - if(stack_frame->AddrReturn.Offset) - { - - if((*(dbg_hlp->sym_get_sym_from_addr))(dbg_hlp->process_handle,stack_frame->AddrPC.Offset, &offset,pSym)) - { - if((*(dbg_hlp->sym_get_line_from_addr))(dbg_hlp->process_handle,stack_frame->AddrPC.Offset, &offset,&line_info)) - buffer[pos++] = (void*)stack_frame; - } - } - else - { - free(stack_frame); /* no symbol or no line info */ - break; - } - } - else - { - free(stack_frame); - - if(first) - first = 0; - else - break; - } - } - - return pos; -} - -char ** -backtrace_symbols (void *const *buffer, int size) -{ - int pos; - int success = 0; - char** strings; - STACKFRAME* stack_frame; - IMAGEHLP_SYMBOL * pSym; - unsigned long offset = 0; - IMAGEHLP_LINE line_info = {0}; - IMAGEHLP_MODULE module = {0}; - byte __buffer[(sizeof(SYMBOL_INFO) +MAX_SYM_NAME * sizeof(TCHAR) + sizeof(ULONG64) - 1) / sizeof(ULONG64)]; - - if((NULL == dbg_hlp) || (size <= 0) || (NULL == buffer)) - { - errno = EINVAL; - return NULL; - } - - strings = (char**)calloc(size,sizeof(char*)); - - if(NULL == strings) - { - errno = ENOMEM; - return NULL; - } - - pSym = (IMAGEHLP_SYMBOL*)__buffer; - - pSym->SizeOfStruct = sizeof(IMAGEHLP_SYMBOL); - pSym->MaxNameLength = MAX_SYM_NAME; - - - line_info.SizeOfStruct = sizeof(IMAGEHLP_LINE); - module.SizeOfStruct = sizeof(IMAGEHLP_MODULE); - - for(pos = 0; pos < size; pos++) - { - stack_frame = (STACKFRAME*)(buffer[pos]); - - if(NULL != stack_frame) - { - - if((*(dbg_hlp->sym_get_sym_from_addr))(dbg_hlp->process_handle,stack_frame->AddrPC.Offset, &offset,pSym)) - { - if((*(dbg_hlp->sym_get_line_from_addr))(dbg_hlp->process_handle,stack_frame->AddrPC.Offset, &offset,&line_info)) - { - strings[pos] = bprintf("** In %s() at %s:%d", pSym->Name,line_info.FileName,line_info.LineNumber); - } - else - { - strings[pos] = bprintf("** In %s()", pSym->Name); - } - success = 1; - } - else - { - strings[pos] = xbt_strdup("** "); - } - - free(stack_frame); - } - else - break; - } - - if(!success) - { - free(strings); - strings = NULL; - } - - dbg_hlp_finalize(); - - return strings; -} - -static int -dbg_hlp_init(HANDLE process_handle) -{ - if(dbg_hlp) - { - /* debug help is already loaded */ - return 0; - } - - /* allocation */ - dbg_hlp = (xbt_debug_hlp_t)calloc(1,sizeof(s_xbt_debug_hlp_t)); - - if(!dbg_hlp) - return ENOMEM; - - /* load the library */ - dbg_hlp->instance = LoadLibraryA("Dbghelp.dll"); - - if(!(dbg_hlp->instance)) - { - free(dbg_hlp); - dbg_hlp = NULL; - return (int)GetLastError(); - } - - /* get the pointers to debug help library exported functions */ - - if(!((dbg_hlp->sym_initialize) = (xbt_pfn_sym_initialize_t)GetProcAddress(dbg_hlp->instance,"SymInitialize"))) - { - FreeLibrary(dbg_hlp->instance); - free(dbg_hlp); - dbg_hlp = NULL; - return (int)GetLastError(); - } - - if(!((dbg_hlp->sym_cleanup) = (xbt_pfn_sym_cleanup_t)GetProcAddress(dbg_hlp->instance,"SymCleanup"))) - { - FreeLibrary(dbg_hlp->instance); - free(dbg_hlp); - dbg_hlp = NULL; - return (int)GetLastError(); - } - - if(!((dbg_hlp->sym_function_table_access) = (xbt_pfn_sym_function_table_access_t)GetProcAddress(dbg_hlp->instance,"SymFunctionTableAccess"))) - { - FreeLibrary(dbg_hlp->instance); - free(dbg_hlp); - dbg_hlp = NULL; - return (int)GetLastError(); - } - - if(!((dbg_hlp->sym_get_line_from_addr) = (xbt_pfn_sym_get_line_from_addr_t)GetProcAddress(dbg_hlp->instance,"SymGetLineFromAddr"))) - { - FreeLibrary(dbg_hlp->instance); - free(dbg_hlp); - dbg_hlp = NULL; - return (int)GetLastError(); - } - - if(!((dbg_hlp->sym_get_module_base) = (xbt_pfn_sym_get_module_base_t)GetProcAddress(dbg_hlp->instance,"SymGetModuleBase"))) - { - FreeLibrary(dbg_hlp->instance); - free(dbg_hlp); - dbg_hlp = NULL; - return (int)GetLastError(); - } - - if(!((dbg_hlp->sym_get_options) = (xbt_pfn_sym_get_options_t)GetProcAddress(dbg_hlp->instance,"SymGetOptions"))) - { - FreeLibrary(dbg_hlp->instance); - free(dbg_hlp); - dbg_hlp = NULL; - return (int)GetLastError(); - } - - if(!((dbg_hlp->sym_get_sym_from_addr) = (xbt_pfn_sym_get_sym_from_addr_t)GetProcAddress(dbg_hlp->instance,"SymGetSymFromAddr"))) - { - FreeLibrary(dbg_hlp->instance); - free(dbg_hlp); - dbg_hlp = NULL; - return (int)GetLastError(); - } - - if(!((dbg_hlp->sym_set_options) = (xbt_pfn_sym_set_options_t)GetProcAddress(dbg_hlp->instance,"SymSetOptions"))) - { - FreeLibrary(dbg_hlp->instance); - free(dbg_hlp); - dbg_hlp = NULL; - return (int)GetLastError(); - } - - if(!((dbg_hlp->stack_walk) = (xbt_pfn_stack_walk_t)GetProcAddress(dbg_hlp->instance,"StackWalk"))) - { - FreeLibrary(dbg_hlp->instance); - free(dbg_hlp); - dbg_hlp = NULL; - return (int)GetLastError(); - } - - dbg_hlp->process_handle = process_handle; - - (*(dbg_hlp->sym_set_options))((*(dbg_hlp->sym_get_options))() | SYMOPT_LOAD_LINES | SYMOPT_DEFERRED_LOADS); - - if(!(*(dbg_hlp->sym_initialize))(dbg_hlp->process_handle,0,1)) - { - FreeLibrary(dbg_hlp->instance); - free(dbg_hlp); - dbg_hlp = NULL; - return (int)GetLastError(); - } - - - return 0; -} - -static int -dbg_hlp_finalize(void) -{ - if(!dbg_hlp) - return EINVAL; - - if(!(*(dbg_hlp->sym_cleanup))(dbg_hlp->process_handle)) - return (int)GetLastError(); - - if(!FreeLibrary(dbg_hlp->instance)) - return (int)GetLastError(); - - free(dbg_hlp); - dbg_hlp = NULL; - - return 0; -} -# endif -#else -/* dummy implementation. We won't use the result, but ex.h needs it to be defined */ -int backtrace (void **__array, int __size) { - return 0; -} - -#endif #ifdef SIMGRID_TEST #include -- 2.20.1