From 24e60978684ee2f137dc270ea3c3ef28da25ed37 Mon Sep 17 00:00:00 2001 From: Steve Chamberlain Date: Mon, 9 Oct 1995 21:54:26 +0000 Subject: [PATCH] * NEWS: Add information about win32 and arm code. * win32-nat.c: Renamed from win32.c * config/i386/win32.mh: Renamed from config/i386/i386win32.mh. * config/i386/win32.mt: Renamed from config/i386/i386win32.mt. * config/i386/tm-win32.h: Renamed from config/i386/tm-i386win32.h. * config/i386/xm-win32.h: Renamed from config/i386/xm-i386win32.h. * configure.in (i[345]86-*-win32): Updated to cope with filename changes. * configure: Regenerated. --- gdb/.Sanitize | 2 +- gdb/ChangeLog | 11 + gdb/NEWS | 8 + gdb/config/i386/.Sanitize | 12 +- gdb/config/i386/i386win32.mh | 5 - .../i386/{tm-i386win32.h => tm-win32.h} | 0 gdb/config/i386/win32.mh | 5 + gdb/config/i386/{i386win32.mt => win32.mt} | 3 +- .../i386/{xm-i386win32.h => xm-win32.h} | 0 gdb/configure | 4 +- gdb/configure.in | 4 +- gdb/win32-nat.c | 643 ++++++++++++++++++ gdb/win32.c | 643 ------------------ 13 files changed, 680 insertions(+), 660 deletions(-) delete mode 100644 gdb/config/i386/i386win32.mh rename gdb/config/i386/{tm-i386win32.h => tm-win32.h} (100%) create mode 100644 gdb/config/i386/win32.mh rename gdb/config/i386/{i386win32.mt => win32.mt} (73%) rename gdb/config/i386/{xm-i386win32.h => xm-win32.h} (100%) create mode 100644 gdb/win32-nat.c diff --git a/gdb/.Sanitize b/gdb/.Sanitize index 219fac72d2..d8e70f769c 100644 --- a/gdb/.Sanitize +++ b/gdb/.Sanitize @@ -351,7 +351,7 @@ vax-tdep.c vx-share w65-tdep.c w89k-rom.c -win32.c +win32-nat.c xcoffread.c xcoffsolib.c xcoffsolib.h diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 5d0489a2bf..0e6e5a3cfd 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,14 @@ +Mon Oct 9 14:36:29 1995 steve chamberlain + + * NEWS: Add information about win32 and arm code. + * win32-nat.c: Renamed from win32.c + * config/i386/win32.mh: Renamed from config/i386/i386win32.mh. + * config/i386/win32.mt: Renamed from config/i386/i386win32.mt. + * config/i386/tm-win32.h: Renamed from config/i386/tm-i386win32.h. + * config/i386/xm-win32.h: Renamed from config/i386/xm-i386win32.h. + * configure.in (i[345]86-*-win32): Updated to cope with filename changes. + * configure: Regenerated. + Sun Oct 8 18:01:04 1995 Per Bothner * ch-exp.y (yylex): Also look for '$' following '$'. diff --git a/gdb/NEWS b/gdb/NEWS index a39a797b2e..18ec89da73 100644 --- a/gdb/NEWS +++ b/gdb/NEWS @@ -12,6 +12,14 @@ about volatile variables, thus making it impossible to debug targets which use memory mapped I/O devices. `set remotecache off' turns the the data cache off. +* New native configurations + +Microsoft NT and Microsoft Windows95 i[345]86-*-win32 + +* New Targets + +ARM via RDP protocol arm-*-* + *** Changes in GDB-4.14: * New native configurations diff --git a/gdb/config/i386/.Sanitize b/gdb/config/i386/.Sanitize index 232e03b8e8..25f9c418a1 100644 --- a/gdb/config/i386/.Sanitize +++ b/gdb/config/i386/.Sanitize @@ -34,9 +34,9 @@ i386bsd.mh i386bsd.mt i386lynx.mh i386lynx.mt -i386mach.mh i386m3.mh i386m3.mt +i386mach.mh i386mk.mh i386mk.mt i386nw.mt @@ -50,14 +50,13 @@ i386v.mt i386v32.mh i386v4.mh i386v4.mt -i386win32.mh -i386win32.mt linux.mh linux.mt nbsd.mh nbsd.mt ncr3000.mh ncr3000.mt +nm-fbsd.h nm-i386aix.h nm-i386bsd.h nm-i386lynx.h @@ -66,7 +65,6 @@ nm-i386sco.h nm-i386sco4.h nm-i386v.h nm-i386v4.h -nm-fbsd.h nm-linux.h nm-m3.h nm-nbsd.h @@ -90,13 +88,15 @@ tm-i386nw.h tm-i386os9k.h tm-i386v.h tm-i386v4.h -tm-i386win32.h tm-linux.h tm-nbsd.h tm-ptx.h tm-ptx4.h tm-sun386.h tm-symmetry.h +tm-win32.h +win32.mh +win32.mt xm-go32.h xm-i386aix.h xm-i386bsd.h @@ -108,13 +108,13 @@ xm-i386sco.h xm-i386v.h xm-i386v32.h xm-i386v4.h -xm-i386win32.h xm-linux.h xm-nbsd.h xm-ptx.h xm-ptx4.h xm-sun386.h xm-symmetry.h +xm-win32.h Things-to-lose: diff --git a/gdb/config/i386/i386win32.mh b/gdb/config/i386/i386win32.mh deleted file mode 100644 index 1b01fa9de1..0000000000 --- a/gdb/config/i386/i386win32.mh +++ /dev/null @@ -1,5 +0,0 @@ -MH_CFLAGS= -XM_FILE=xm-i386win32.h -TERMCAP= -XDEPFILES=win32.o - diff --git a/gdb/config/i386/tm-i386win32.h b/gdb/config/i386/tm-win32.h similarity index 100% rename from gdb/config/i386/tm-i386win32.h rename to gdb/config/i386/tm-win32.h diff --git a/gdb/config/i386/win32.mh b/gdb/config/i386/win32.mh new file mode 100644 index 0000000000..e1713a0eee --- /dev/null +++ b/gdb/config/i386/win32.mh @@ -0,0 +1,5 @@ +MH_CFLAGS= +XM_FILE=xm-win32.h +TERMCAP= +NATDEPFILES=win32-nat.o + diff --git a/gdb/config/i386/i386win32.mt b/gdb/config/i386/win32.mt similarity index 73% rename from gdb/config/i386/i386win32.mt rename to gdb/config/i386/win32.mt index b71b059db4..be484c46d0 100644 --- a/gdb/config/i386/i386win32.mt +++ b/gdb/config/i386/win32.mt @@ -1,5 +1,6 @@ # Target: Intel 386 run win32 TDEPFILES= i386-tdep.o i387-tdep.o -TM_FILE= tm-i386win32.h +TM_FILE= tm-win32.h + diff --git a/gdb/config/i386/xm-i386win32.h b/gdb/config/i386/xm-win32.h similarity index 100% rename from gdb/config/i386/xm-i386win32.h rename to gdb/config/i386/xm-win32.h diff --git a/gdb/configure b/gdb/configure index 8b043680e7..d16de480f8 100755 --- a/gdb/configure +++ b/gdb/configure @@ -2039,7 +2039,7 @@ i[345]86-*-unixware) gdb_host=i386v4 ;; i[345]86-*-sysv*) gdb_host=i386v ;; i[345]86-*-isc*) gdb_host=i386v32 ;; i[345]86-*-os9k) gdb_host=i386os9k ;; -i[345]86-*-win32*) gdb_host=i386win32 ;; +i[345]86-*-win32*) gdb_host=win32 ;; m680[01]0-sun-sunos3*) gdb_host=sun2os3 ;; m680[01]0-sun-sunos4*) gdb_host=sun2os4 ;; m68030-sony-*) gdb_host=news1000 ;; @@ -2204,7 +2204,7 @@ i[345]86-*-mach*) gdb_target=i386mach ;; i[345]86-*-netware*) gdb_target=i386nw configdirs="${configdirs} nlm" ;; i[345]86-*-osf1mk*) gdb_target=i386mk ;; -i[345]86-*-win32) gdb_target=i386win32 ;; +i[345]86-*-win32) gdb_target=win32 ;; i960-*-bout*) gdb_target=vxworks960 ;; i960-*-coff*) gdb_target=nindy960 ;; diff --git a/gdb/configure.in b/gdb/configure.in index 1f0ad095a4..9e90f63d65 100644 --- a/gdb/configure.in +++ b/gdb/configure.in @@ -152,7 +152,7 @@ i[345]86-*-unixware) gdb_host=i386v4 ;; i[345]86-*-sysv*) gdb_host=i386v ;; i[345]86-*-isc*) gdb_host=i386v32 ;; i[345]86-*-os9k) gdb_host=i386os9k ;; -i[345]86-*-win32*) gdb_host=i386win32 ;; +i[345]86-*-win32*) gdb_host=win32 ;; m680[01]0-sun-sunos3*) gdb_host=sun2os3 ;; m680[01]0-sun-sunos4*) gdb_host=sun2os4 ;; m68030-sony-*) gdb_host=news1000 ;; @@ -317,7 +317,7 @@ i[345]86-*-mach*) gdb_target=i386mach ;; i[345]86-*-netware*) gdb_target=i386nw configdirs="${configdirs} nlm" ;; i[345]86-*-osf1mk*) gdb_target=i386mk ;; -i[345]86-*-win32) gdb_target=i386win32 ;; +i[345]86-*-win32) gdb_target=win32 ;; i960-*-bout*) gdb_target=vxworks960 ;; i960-*-coff*) gdb_target=nindy960 ;; diff --git a/gdb/win32-nat.c b/gdb/win32-nat.c new file mode 100644 index 0000000000..b7308c528a --- /dev/null +++ b/gdb/win32-nat.c @@ -0,0 +1,643 @@ +/* Target-vector operations for controlling win32 child processes, for GDB. + Copyright 1996 + Free Software Foundation, Inc. + + Contributed by Cygnus Support. + This file is part of GDB. + + 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 eve nthe 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. */ + +/* by Steve Chamberlain, sac@cygnus.com */ + +#include "defs.h" +#include "frame.h" /* required by inferior.h */ +#include "inferior.h" +#include "target.h" +#include "wait.h" +#include "gdbcore.h" +#include "command.h" +#include +#include +#include +#include +#include "buildsym.h" +#include "gdb_string.h" +#include "thread.h" +#include "gdbcmd.h" + +#define CHECK(x) check (x, __FILE__,__LINE__) +#define DEBUG(x) if (remote_debug) printf x + + +/* Forward declaration */ +extern struct target_ops child_ops; + +/* The most recently read context. Inspect ContextFlags to see what + bits are valid. */ + +static CONTEXT context; + +/* The process and thread handles for the above context. */ + +static HANDLE current_process; +static HANDLE current_thread; +static int current_process_id; +static int current_thread_id; + +/* Counts of things. */ +static int exception_count = 0; +static int event_count = 0; + +/* User options. */ +static int new_console = 0; +static int new_group = 0; + +/* This vector maps GDB's idea of a register's number into an address + in the win32 exception context vector. + + It also contains the bit mask needed to load the register in question. + + One day we could read a reg, we could inspect the context we + already have loaded, if it doesn't have the bit set that we need, + we read that set of registers in using GetThreadContext. If the + context already contains what we need, we just unpack it. Then to + write a register, first we have to ensure that the context contains + the other regs of the group, and then we copy the info in and set + out bit. */ + +struct regmappings + { + char *incontext; + int mask; + }; + +static const struct regmappings + mappings[] = +{ + {(char *) &context.Eax, CONTEXT_INTEGER}, + {(char *) &context.Ecx, CONTEXT_INTEGER}, + {(char *) &context.Edx, CONTEXT_INTEGER}, + {(char *) &context.Ebx, CONTEXT_INTEGER}, + {(char *) &context.Esp, CONTEXT_CONTROL}, + {(char *) &context.Ebp, CONTEXT_CONTROL}, + {(char *) &context.Esi, CONTEXT_INTEGER}, + {(char *) &context.Edi, CONTEXT_INTEGER}, + {(char *) &context.Eip, CONTEXT_CONTROL}, + {(char *) &context.EFlags, CONTEXT_CONTROL}, + {(char *) &context.SegCs, CONTEXT_SEGMENTS}, + {(char *) &context.SegSs, CONTEXT_SEGMENTS}, + {(char *) &context.SegDs, CONTEXT_SEGMENTS}, + {(char *) &context.SegEs, CONTEXT_SEGMENTS}, + {(char *) &context.SegFs, CONTEXT_SEGMENTS}, + {(char *) &context.SegGs, CONTEXT_SEGMENTS}, + {&context.FloatSave.RegisterArea[0 * 10], CONTEXT_FLOATING_POINT}, + {&context.FloatSave.RegisterArea[1 * 10], CONTEXT_FLOATING_POINT}, + {&context.FloatSave.RegisterArea[2 * 10], CONTEXT_FLOATING_POINT}, + {&context.FloatSave.RegisterArea[3 * 10], CONTEXT_FLOATING_POINT}, + {&context.FloatSave.RegisterArea[4 * 10], CONTEXT_FLOATING_POINT}, + {&context.FloatSave.RegisterArea[5 * 10], CONTEXT_FLOATING_POINT}, + {&context.FloatSave.RegisterArea[6 * 10], CONTEXT_FLOATING_POINT}, + {&context.FloatSave.RegisterArea[7 * 10], CONTEXT_FLOATING_POINT}, +}; + + +/* This vector maps the target's idea of an exception (extracted + from the DEBUG_EVENT structure) to GDB's idea. */ + +struct xlate_exception + { + int them; + enum target_signal us; + }; + + +static const struct xlate_exception + xlate[] = +{ + {EXCEPTION_ACCESS_VIOLATION, TARGET_SIGNAL_SEGV}, + {EXCEPTION_BREAKPOINT, TARGET_SIGNAL_TRAP}, + {DBG_CONTROL_C, TARGET_SIGNAL_INT}, + {EXCEPTION_SINGLE_STEP, TARGET_SIGNAL_TRAP}, + {-1, -1}}; + + +static void +check (BOOL ok, const char *file, int line) +{ + if (!ok) + printf_filtered ("error return %s:%d was %d\n", file, line, GetLastError ()); +} + +static void +child_fetch_inferior_registers (int r) +{ + if (r < 0) + { + for (r = 0; r < NUM_REGS; r++) + child_fetch_inferior_registers (r); + } + else + { + supply_register (r, mappings[r].incontext); + } +} + +static void +child_store_inferior_registers (int r) +{ + if (r < 0) + { + for (r = 0; r < NUM_REGS; r++) + child_store_inferior_registers (r); + } + else + { + read_register_gen (r, mappings[r].incontext); + } +} + + +/* Wait for child to do something. Return pid of child, or -1 in case + of error; store status through argument pointer OURSTATUS. */ + + +static void +handle_load_dll (DEBUG_EVENT * event) +{ + DWORD dll_name_ptr; + DWORD done; + + ReadProcessMemory (current_process, + (DWORD) event->u.LoadDll.lpImageName, + (char *) &dll_name_ptr, + sizeof (dll_name_ptr), &done); + + /* See if we could read the address of a string, and that the + address isn't null. */ + + if (done == sizeof (dll_name_ptr) && dll_name_ptr) + { + char *dll_name; + int size = event->u.LoadDll.fUnicode ? sizeof (WCHAR) : sizeof (char); + int len = 0; + char b[2]; + do + { + ReadProcessMemory (current_process, + dll_name_ptr + len * size, + &b, + size, + &done); + len++; + } + while ((b[0] != 0 || b[size - 1] != 0) && done == size); + + + dll_name = alloca (len); + + if (event->u.LoadDll.fUnicode) + { + WCHAR *unicode_dll_name = (WCHAR *) alloca (len * sizeof (WCHAR)); + ReadProcessMemory (current_process, + dll_name_ptr, + unicode_dll_name, + len * sizeof (WCHAR), + &done); + + WideCharToMultiByte (CP_ACP, 0, + unicode_dll_name, len, + dll_name, len, 0, 0); + } + else + { + ReadProcessMemory (current_process, + dll_name_ptr, + dll_name, + len, + &done); + } + + /* FIXME!! It would be nice to define one symbol which pointed to the + front of the dll if we can't find any symbols. */ + + context.ContextFlags = CONTEXT_FULL; + GetThreadContext (current_thread, &context); + + symbol_file_add (dll_name, 0, (int) event->u.LoadDll.lpBaseOfDll, 0, 0, 0); + + /* We strip off the path of the dll for tidiness. */ + if (strrchr (dll_name, '\\')) + dll_name = strrchr (dll_name, '\\') + 1; + printf_unfiltered ("%x:%s\n", event->u.LoadDll.lpBaseOfDll, dll_name); + } +} + + +static void +handle_exception (DEBUG_EVENT * event, struct target_waitstatus *ourstatus) +{ + int i; + int done = 0; + ourstatus->kind = TARGET_WAITKIND_STOPPED; + + for (i = 0; !done && xlate[i].us > 0; i++) + { + if (xlate[i].them == event->u.Exception.ExceptionRecord.ExceptionCode) + { + ourstatus->value.sig = xlate[i].us; + done = 1; + break; + } + } + + if (!done) + { + printf_unfiltered ("Want to know about exception code %08x\n", + event->u.Exception.ExceptionRecord.ExceptionCode); + ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN; + } + context.ContextFlags = CONTEXT_FULL; + GetThreadContext (current_thread, &context); + exception_count++; +} + +static int +child_wait (int pid, struct target_waitstatus *ourstatus) +{ + /* We loop when we get a non-standard exception rather than return + with a SPURIOUS because resume can try and step or modify things, + which needs a current_thread. But some of these exceptions mark + the birth or death of threads, which mean that the current thread + isn't necessarily what you think it is. */ + + while (1) + { + DEBUG_EVENT event; + BOOL t = WaitForDebugEvent (&event, INFINITE); + + DEBUG (("%d = WaitForDebugEvent() code=%d pid=%d tid=%d)\n", + t, + event.dwDebugEventCode, + event.dwProcessId, + event.dwThreadId)); + + event_count++; + + current_thread_id = event.dwThreadId; + current_process_id = event.dwProcessId; + + switch (event.dwDebugEventCode) + { + case CREATE_THREAD_DEBUG_EVENT: + case EXIT_THREAD_DEBUG_EVENT: + case CREATE_PROCESS_DEBUG_EVENT: + break; + + case EXIT_PROCESS_DEBUG_EVENT: + ourstatus->kind = TARGET_WAITKIND_EXITED; + ourstatus->value.integer = event.u.ExitProcess.dwExitCode; + CloseHandle (current_process); + CloseHandle (current_thread); + return current_process_id; + break; + + case LOAD_DLL_DEBUG_EVENT: + handle_load_dll (&event); + break; + case EXCEPTION_DEBUG_EVENT: + handle_exception (&event, ourstatus); + return current_process_id; + default: + printf_unfiltered ("waitfor it %d %d %d %d\n", t, + event.dwDebugEventCode, + event.dwProcessId, + event.dwThreadId); + break; + } + CHECK (ContinueDebugEvent (current_process_id, + current_thread_id, + DBG_CONTINUE)); + } +} + + + + +/* Attach to process PID, then initialize for debugging it. */ + +static void +child_attach (args, from_tty) + char *args; + int from_tty; +{ + BOOL ok; + + if (!args) + error_no_arg ("process-id to attach"); + + current_process_id = strtoul (args, 0, 0); + + ok = DebugActiveProcess (current_process_id); + + if (!ok) + error ("Can't attach to process."); + + + exception_count = 0; + event_count = 0; + + if (from_tty) + { + char *exec_file = (char *) get_exec_file (0); + + if (exec_file) + printf_unfiltered ("Attaching to program `%s', %s\n", exec_file, + target_pid_to_str (current_process_id)); + else + printf_unfiltered ("Attaching to %s\n", + target_pid_to_str (current_process_id)); + + gdb_flush (gdb_stdout); + } + + inferior_pid = current_process_id; + push_target (&child_ops); +} + + +static void +child_detach (args, from_tty) + char *args; + int from_tty; +{ + if (from_tty) + { + char *exec_file = get_exec_file (0); + if (exec_file == 0) + exec_file = ""; + printf_unfiltered ("Detaching from program: %s %s\n", exec_file, + target_pid_to_str (inferior_pid)); + gdb_flush (gdb_stdout); + } + inferior_pid = 0; + unpush_target (&child_ops); +} + + +/* Print status information about what we're accessing. */ + +static void +child_files_info (ignore) + struct target_ops *ignore; +{ + printf_unfiltered ("\tUsing the running image of %s %s.\n", + attach_flag ? "attached" : "child", target_pid_to_str (inferior_pid)); +} + +/* ARGSUSED */ +static void +child_open (arg, from_tty) + char *arg; + int from_tty; +{ + error ("Use the \"run\" command to start a Unix child process."); +} + +/* Stub function which causes the inferior that runs it, to be ptrace-able + by its parent process. */ + + +/* Start an inferior Unix child process and sets inferior_pid to its pid. + EXEC_FILE is the file to run. + ALLARGS is a string containing the arguments to the program. + ENV is the environment vector to pass. Errors reported with error(). */ + + +static void +child_create_inferior (exec_file, allargs, env) + char *exec_file; + char *allargs; + char **env; +{ + char *real_path; + STARTUPINFO si; + PROCESS_INFORMATION pi; + struct target_waitstatus dummy; + BOOL ret; + DWORD flags; + + if (!exec_file) + { + error ("No executable specified, use `target exec'.\n"); + } + + memset (&si, 0, sizeof (si)); + si.cb = sizeof (si); + + /* A realpath is always the same size, or a bit shorter than a nice path. */ + real_path = alloca (strlen (exec_file) + 1); + path_to_real_path (exec_file, real_path); + + flags = DEBUG_ONLY_THIS_PROCESS | DEBUG_PROCESS; + + if (new_group) + flags |= CREATE_NEW_PROCESS_GROUP; + + if (new_console) + flags |= CREATE_NEW_CONSOLE; + + ret = CreateProcess (real_path, + allargs, + NULL, /* Security */ + NULL, /* thread */ + TRUE, /* inherit handles */ + flags, /* start flags */ + env, + NULL, /* current directory */ + &si, + &pi); + if (!ret) + error ("Error creating process %s\n", exec_file); + + exception_count = 0; + event_count = 0; + + inferior_pid = pi.dwProcessId; + current_process = pi.hProcess; + current_thread = pi.hThread; + current_process_id = pi.dwProcessId; + current_thread_id = pi.dwThreadId; + push_target (&child_ops); + init_thread_list (); + init_wait_for_inferior (); + clear_proceed_status (); + target_terminal_init (); + target_terminal_inferior (); + + /* Ignore the first trap */ + child_wait (inferior_pid, &dummy); + + proceed ((CORE_ADDR) - 1, TARGET_SIGNAL_0, 0); +} + +static void +child_mourn_inferior () +{ + unpush_target (&child_ops); + generic_mourn_inferior (); +} + + +/* Send a SIGINT to the process group. This acts just like the user typed a + ^C on the controlling terminal. */ + +void +child_stop () +{ + CHECK (GenerateConsoleCtrlEvent (CTRL_C_EVENT, 0)); +} + +int +child_xfer_memory (CORE_ADDR memaddr, char *our, int len, int write, struct target_ops *target) +{ + DWORD done; + if (write) + { + WriteProcessMemory (current_process, memaddr, our, len, &done); + FlushInstructionCache (current_process, memaddr, len); + } + else + { + ReadProcessMemory (current_process, memaddr, our, len, &done); + } + return done; +} + +void +child_kill_inferior (void) +{ + CHECK (TerminateProcess (current_process, 0)); + CHECK (CloseHandle (current_process)); + CHECK (CloseHandle (current_thread)); +} + +void +child_resume (int pid, int step, enum target_signal signal) +{ + DEBUG (("child_resume (%d, %d, %d);\n", pid, step, signal)); + + if (step) + { + /* Single step by setting t bit */ + child_fetch_inferior_registers (PS_REGNUM); + context.EFlags |= FLAG_TRACE_BIT; + } + + if (context.ContextFlags) + { + CHECK (SetThreadContext (current_thread, &context)); + context.ContextFlags = 0; + } + + if (signal) + { + fprintf_unfiltered (gdb_stderr, "Can't send signals to the child.\n"); + } + + CHECK (ContinueDebugEvent (current_process_id, + current_thread_id, + DBG_CONTINUE)); +} + +static void +child_prepare_to_store () +{ + /* Do nothing, since we can store individual regs */ +} + +static int +child_can_run () +{ + return 1; +} + +static void +child_close () +{ + +} +struct target_ops child_ops = +{ + "child", /* to_shortname */ + "Win32 child process", /* to_longname */ + "Win32 child process (started by the \"run\" command).", /* to_doc */ + child_open, /* to_open */ + child_close, /* to_close */ + child_attach, /* to_attach */ + child_detach, /* to_detach */ + child_resume, /* to_resume */ + child_wait, /* to_wait */ + child_fetch_inferior_registers,/* to_fetch_registers */ + child_store_inferior_registers,/* to_store_registers */ + child_prepare_to_store, /* to_child_prepare_to_store */ + child_xfer_memory, /* to_xfer_memory */ + child_files_info, /* to_files_info */ + memory_insert_breakpoint, /* to_insert_breakpoint */ + memory_remove_breakpoint, /* to_remove_breakpoint */ + terminal_init_inferior, /* to_terminal_init */ + terminal_inferior, /* to_terminal_inferior */ + terminal_ours_for_output, /* to_terminal_ours_for_output */ + terminal_ours, /* to_terminal_ours */ + child_terminal_info, /* to_terminal_info */ + child_kill_inferior, /* to_kill */ + 0, /* to_load */ + 0, /* to_lookup_symbol */ + child_create_inferior, /* to_create_inferior */ + child_mourn_inferior, /* to_mourn_inferior */ + child_can_run, /* to_can_run */ + 0, /* to_notice_signals */ + 0, /* to_thread_alive */ + child_stop, /* to_stop */ + process_stratum, /* to_stratum */ + 0, /* to_next */ + 1, /* to_has_all_memory */ + 1, /* to_has_memory */ + 1, /* to_has_stack */ + 1, /* to_has_registers */ + 1, /* to_has_execution */ + 0, /* to_sections */ + 0, /* to_sections_end */ + OPS_MAGIC /* to_magic */ +}; + +void +_initialize_inftarg () +{ + add_show_from_set + (add_set_cmd ("new-console", class_support, var_boolean, + (char *) &new_console, + "Set creation of new console when creating child process.", + &setlist), + &showlist); + + add_show_from_set + (add_set_cmd ("new-group", class_support, var_boolean, + (char *) &new_group, + "Set creation of new group when creating child process.", + &setlist), + &showlist); + + add_target (&child_ops); +} diff --git a/gdb/win32.c b/gdb/win32.c index b7308c528a..e69de29bb2 100644 --- a/gdb/win32.c +++ b/gdb/win32.c @@ -1,643 +0,0 @@ -/* Target-vector operations for controlling win32 child processes, for GDB. - Copyright 1996 - Free Software Foundation, Inc. - - Contributed by Cygnus Support. - This file is part of GDB. - - 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 eve nthe 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. */ - -/* by Steve Chamberlain, sac@cygnus.com */ - -#include "defs.h" -#include "frame.h" /* required by inferior.h */ -#include "inferior.h" -#include "target.h" -#include "wait.h" -#include "gdbcore.h" -#include "command.h" -#include -#include -#include -#include -#include "buildsym.h" -#include "gdb_string.h" -#include "thread.h" -#include "gdbcmd.h" - -#define CHECK(x) check (x, __FILE__,__LINE__) -#define DEBUG(x) if (remote_debug) printf x - - -/* Forward declaration */ -extern struct target_ops child_ops; - -/* The most recently read context. Inspect ContextFlags to see what - bits are valid. */ - -static CONTEXT context; - -/* The process and thread handles for the above context. */ - -static HANDLE current_process; -static HANDLE current_thread; -static int current_process_id; -static int current_thread_id; - -/* Counts of things. */ -static int exception_count = 0; -static int event_count = 0; - -/* User options. */ -static int new_console = 0; -static int new_group = 0; - -/* This vector maps GDB's idea of a register's number into an address - in the win32 exception context vector. - - It also contains the bit mask needed to load the register in question. - - One day we could read a reg, we could inspect the context we - already have loaded, if it doesn't have the bit set that we need, - we read that set of registers in using GetThreadContext. If the - context already contains what we need, we just unpack it. Then to - write a register, first we have to ensure that the context contains - the other regs of the group, and then we copy the info in and set - out bit. */ - -struct regmappings - { - char *incontext; - int mask; - }; - -static const struct regmappings - mappings[] = -{ - {(char *) &context.Eax, CONTEXT_INTEGER}, - {(char *) &context.Ecx, CONTEXT_INTEGER}, - {(char *) &context.Edx, CONTEXT_INTEGER}, - {(char *) &context.Ebx, CONTEXT_INTEGER}, - {(char *) &context.Esp, CONTEXT_CONTROL}, - {(char *) &context.Ebp, CONTEXT_CONTROL}, - {(char *) &context.Esi, CONTEXT_INTEGER}, - {(char *) &context.Edi, CONTEXT_INTEGER}, - {(char *) &context.Eip, CONTEXT_CONTROL}, - {(char *) &context.EFlags, CONTEXT_CONTROL}, - {(char *) &context.SegCs, CONTEXT_SEGMENTS}, - {(char *) &context.SegSs, CONTEXT_SEGMENTS}, - {(char *) &context.SegDs, CONTEXT_SEGMENTS}, - {(char *) &context.SegEs, CONTEXT_SEGMENTS}, - {(char *) &context.SegFs, CONTEXT_SEGMENTS}, - {(char *) &context.SegGs, CONTEXT_SEGMENTS}, - {&context.FloatSave.RegisterArea[0 * 10], CONTEXT_FLOATING_POINT}, - {&context.FloatSave.RegisterArea[1 * 10], CONTEXT_FLOATING_POINT}, - {&context.FloatSave.RegisterArea[2 * 10], CONTEXT_FLOATING_POINT}, - {&context.FloatSave.RegisterArea[3 * 10], CONTEXT_FLOATING_POINT}, - {&context.FloatSave.RegisterArea[4 * 10], CONTEXT_FLOATING_POINT}, - {&context.FloatSave.RegisterArea[5 * 10], CONTEXT_FLOATING_POINT}, - {&context.FloatSave.RegisterArea[6 * 10], CONTEXT_FLOATING_POINT}, - {&context.FloatSave.RegisterArea[7 * 10], CONTEXT_FLOATING_POINT}, -}; - - -/* This vector maps the target's idea of an exception (extracted - from the DEBUG_EVENT structure) to GDB's idea. */ - -struct xlate_exception - { - int them; - enum target_signal us; - }; - - -static const struct xlate_exception - xlate[] = -{ - {EXCEPTION_ACCESS_VIOLATION, TARGET_SIGNAL_SEGV}, - {EXCEPTION_BREAKPOINT, TARGET_SIGNAL_TRAP}, - {DBG_CONTROL_C, TARGET_SIGNAL_INT}, - {EXCEPTION_SINGLE_STEP, TARGET_SIGNAL_TRAP}, - {-1, -1}}; - - -static void -check (BOOL ok, const char *file, int line) -{ - if (!ok) - printf_filtered ("error return %s:%d was %d\n", file, line, GetLastError ()); -} - -static void -child_fetch_inferior_registers (int r) -{ - if (r < 0) - { - for (r = 0; r < NUM_REGS; r++) - child_fetch_inferior_registers (r); - } - else - { - supply_register (r, mappings[r].incontext); - } -} - -static void -child_store_inferior_registers (int r) -{ - if (r < 0) - { - for (r = 0; r < NUM_REGS; r++) - child_store_inferior_registers (r); - } - else - { - read_register_gen (r, mappings[r].incontext); - } -} - - -/* Wait for child to do something. Return pid of child, or -1 in case - of error; store status through argument pointer OURSTATUS. */ - - -static void -handle_load_dll (DEBUG_EVENT * event) -{ - DWORD dll_name_ptr; - DWORD done; - - ReadProcessMemory (current_process, - (DWORD) event->u.LoadDll.lpImageName, - (char *) &dll_name_ptr, - sizeof (dll_name_ptr), &done); - - /* See if we could read the address of a string, and that the - address isn't null. */ - - if (done == sizeof (dll_name_ptr) && dll_name_ptr) - { - char *dll_name; - int size = event->u.LoadDll.fUnicode ? sizeof (WCHAR) : sizeof (char); - int len = 0; - char b[2]; - do - { - ReadProcessMemory (current_process, - dll_name_ptr + len * size, - &b, - size, - &done); - len++; - } - while ((b[0] != 0 || b[size - 1] != 0) && done == size); - - - dll_name = alloca (len); - - if (event->u.LoadDll.fUnicode) - { - WCHAR *unicode_dll_name = (WCHAR *) alloca (len * sizeof (WCHAR)); - ReadProcessMemory (current_process, - dll_name_ptr, - unicode_dll_name, - len * sizeof (WCHAR), - &done); - - WideCharToMultiByte (CP_ACP, 0, - unicode_dll_name, len, - dll_name, len, 0, 0); - } - else - { - ReadProcessMemory (current_process, - dll_name_ptr, - dll_name, - len, - &done); - } - - /* FIXME!! It would be nice to define one symbol which pointed to the - front of the dll if we can't find any symbols. */ - - context.ContextFlags = CONTEXT_FULL; - GetThreadContext (current_thread, &context); - - symbol_file_add (dll_name, 0, (int) event->u.LoadDll.lpBaseOfDll, 0, 0, 0); - - /* We strip off the path of the dll for tidiness. */ - if (strrchr (dll_name, '\\')) - dll_name = strrchr (dll_name, '\\') + 1; - printf_unfiltered ("%x:%s\n", event->u.LoadDll.lpBaseOfDll, dll_name); - } -} - - -static void -handle_exception (DEBUG_EVENT * event, struct target_waitstatus *ourstatus) -{ - int i; - int done = 0; - ourstatus->kind = TARGET_WAITKIND_STOPPED; - - for (i = 0; !done && xlate[i].us > 0; i++) - { - if (xlate[i].them == event->u.Exception.ExceptionRecord.ExceptionCode) - { - ourstatus->value.sig = xlate[i].us; - done = 1; - break; - } - } - - if (!done) - { - printf_unfiltered ("Want to know about exception code %08x\n", - event->u.Exception.ExceptionRecord.ExceptionCode); - ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN; - } - context.ContextFlags = CONTEXT_FULL; - GetThreadContext (current_thread, &context); - exception_count++; -} - -static int -child_wait (int pid, struct target_waitstatus *ourstatus) -{ - /* We loop when we get a non-standard exception rather than return - with a SPURIOUS because resume can try and step or modify things, - which needs a current_thread. But some of these exceptions mark - the birth or death of threads, which mean that the current thread - isn't necessarily what you think it is. */ - - while (1) - { - DEBUG_EVENT event; - BOOL t = WaitForDebugEvent (&event, INFINITE); - - DEBUG (("%d = WaitForDebugEvent() code=%d pid=%d tid=%d)\n", - t, - event.dwDebugEventCode, - event.dwProcessId, - event.dwThreadId)); - - event_count++; - - current_thread_id = event.dwThreadId; - current_process_id = event.dwProcessId; - - switch (event.dwDebugEventCode) - { - case CREATE_THREAD_DEBUG_EVENT: - case EXIT_THREAD_DEBUG_EVENT: - case CREATE_PROCESS_DEBUG_EVENT: - break; - - case EXIT_PROCESS_DEBUG_EVENT: - ourstatus->kind = TARGET_WAITKIND_EXITED; - ourstatus->value.integer = event.u.ExitProcess.dwExitCode; - CloseHandle (current_process); - CloseHandle (current_thread); - return current_process_id; - break; - - case LOAD_DLL_DEBUG_EVENT: - handle_load_dll (&event); - break; - case EXCEPTION_DEBUG_EVENT: - handle_exception (&event, ourstatus); - return current_process_id; - default: - printf_unfiltered ("waitfor it %d %d %d %d\n", t, - event.dwDebugEventCode, - event.dwProcessId, - event.dwThreadId); - break; - } - CHECK (ContinueDebugEvent (current_process_id, - current_thread_id, - DBG_CONTINUE)); - } -} - - - - -/* Attach to process PID, then initialize for debugging it. */ - -static void -child_attach (args, from_tty) - char *args; - int from_tty; -{ - BOOL ok; - - if (!args) - error_no_arg ("process-id to attach"); - - current_process_id = strtoul (args, 0, 0); - - ok = DebugActiveProcess (current_process_id); - - if (!ok) - error ("Can't attach to process."); - - - exception_count = 0; - event_count = 0; - - if (from_tty) - { - char *exec_file = (char *) get_exec_file (0); - - if (exec_file) - printf_unfiltered ("Attaching to program `%s', %s\n", exec_file, - target_pid_to_str (current_process_id)); - else - printf_unfiltered ("Attaching to %s\n", - target_pid_to_str (current_process_id)); - - gdb_flush (gdb_stdout); - } - - inferior_pid = current_process_id; - push_target (&child_ops); -} - - -static void -child_detach (args, from_tty) - char *args; - int from_tty; -{ - if (from_tty) - { - char *exec_file = get_exec_file (0); - if (exec_file == 0) - exec_file = ""; - printf_unfiltered ("Detaching from program: %s %s\n", exec_file, - target_pid_to_str (inferior_pid)); - gdb_flush (gdb_stdout); - } - inferior_pid = 0; - unpush_target (&child_ops); -} - - -/* Print status information about what we're accessing. */ - -static void -child_files_info (ignore) - struct target_ops *ignore; -{ - printf_unfiltered ("\tUsing the running image of %s %s.\n", - attach_flag ? "attached" : "child", target_pid_to_str (inferior_pid)); -} - -/* ARGSUSED */ -static void -child_open (arg, from_tty) - char *arg; - int from_tty; -{ - error ("Use the \"run\" command to start a Unix child process."); -} - -/* Stub function which causes the inferior that runs it, to be ptrace-able - by its parent process. */ - - -/* Start an inferior Unix child process and sets inferior_pid to its pid. - EXEC_FILE is the file to run. - ALLARGS is a string containing the arguments to the program. - ENV is the environment vector to pass. Errors reported with error(). */ - - -static void -child_create_inferior (exec_file, allargs, env) - char *exec_file; - char *allargs; - char **env; -{ - char *real_path; - STARTUPINFO si; - PROCESS_INFORMATION pi; - struct target_waitstatus dummy; - BOOL ret; - DWORD flags; - - if (!exec_file) - { - error ("No executable specified, use `target exec'.\n"); - } - - memset (&si, 0, sizeof (si)); - si.cb = sizeof (si); - - /* A realpath is always the same size, or a bit shorter than a nice path. */ - real_path = alloca (strlen (exec_file) + 1); - path_to_real_path (exec_file, real_path); - - flags = DEBUG_ONLY_THIS_PROCESS | DEBUG_PROCESS; - - if (new_group) - flags |= CREATE_NEW_PROCESS_GROUP; - - if (new_console) - flags |= CREATE_NEW_CONSOLE; - - ret = CreateProcess (real_path, - allargs, - NULL, /* Security */ - NULL, /* thread */ - TRUE, /* inherit handles */ - flags, /* start flags */ - env, - NULL, /* current directory */ - &si, - &pi); - if (!ret) - error ("Error creating process %s\n", exec_file); - - exception_count = 0; - event_count = 0; - - inferior_pid = pi.dwProcessId; - current_process = pi.hProcess; - current_thread = pi.hThread; - current_process_id = pi.dwProcessId; - current_thread_id = pi.dwThreadId; - push_target (&child_ops); - init_thread_list (); - init_wait_for_inferior (); - clear_proceed_status (); - target_terminal_init (); - target_terminal_inferior (); - - /* Ignore the first trap */ - child_wait (inferior_pid, &dummy); - - proceed ((CORE_ADDR) - 1, TARGET_SIGNAL_0, 0); -} - -static void -child_mourn_inferior () -{ - unpush_target (&child_ops); - generic_mourn_inferior (); -} - - -/* Send a SIGINT to the process group. This acts just like the user typed a - ^C on the controlling terminal. */ - -void -child_stop () -{ - CHECK (GenerateConsoleCtrlEvent (CTRL_C_EVENT, 0)); -} - -int -child_xfer_memory (CORE_ADDR memaddr, char *our, int len, int write, struct target_ops *target) -{ - DWORD done; - if (write) - { - WriteProcessMemory (current_process, memaddr, our, len, &done); - FlushInstructionCache (current_process, memaddr, len); - } - else - { - ReadProcessMemory (current_process, memaddr, our, len, &done); - } - return done; -} - -void -child_kill_inferior (void) -{ - CHECK (TerminateProcess (current_process, 0)); - CHECK (CloseHandle (current_process)); - CHECK (CloseHandle (current_thread)); -} - -void -child_resume (int pid, int step, enum target_signal signal) -{ - DEBUG (("child_resume (%d, %d, %d);\n", pid, step, signal)); - - if (step) - { - /* Single step by setting t bit */ - child_fetch_inferior_registers (PS_REGNUM); - context.EFlags |= FLAG_TRACE_BIT; - } - - if (context.ContextFlags) - { - CHECK (SetThreadContext (current_thread, &context)); - context.ContextFlags = 0; - } - - if (signal) - { - fprintf_unfiltered (gdb_stderr, "Can't send signals to the child.\n"); - } - - CHECK (ContinueDebugEvent (current_process_id, - current_thread_id, - DBG_CONTINUE)); -} - -static void -child_prepare_to_store () -{ - /* Do nothing, since we can store individual regs */ -} - -static int -child_can_run () -{ - return 1; -} - -static void -child_close () -{ - -} -struct target_ops child_ops = -{ - "child", /* to_shortname */ - "Win32 child process", /* to_longname */ - "Win32 child process (started by the \"run\" command).", /* to_doc */ - child_open, /* to_open */ - child_close, /* to_close */ - child_attach, /* to_attach */ - child_detach, /* to_detach */ - child_resume, /* to_resume */ - child_wait, /* to_wait */ - child_fetch_inferior_registers,/* to_fetch_registers */ - child_store_inferior_registers,/* to_store_registers */ - child_prepare_to_store, /* to_child_prepare_to_store */ - child_xfer_memory, /* to_xfer_memory */ - child_files_info, /* to_files_info */ - memory_insert_breakpoint, /* to_insert_breakpoint */ - memory_remove_breakpoint, /* to_remove_breakpoint */ - terminal_init_inferior, /* to_terminal_init */ - terminal_inferior, /* to_terminal_inferior */ - terminal_ours_for_output, /* to_terminal_ours_for_output */ - terminal_ours, /* to_terminal_ours */ - child_terminal_info, /* to_terminal_info */ - child_kill_inferior, /* to_kill */ - 0, /* to_load */ - 0, /* to_lookup_symbol */ - child_create_inferior, /* to_create_inferior */ - child_mourn_inferior, /* to_mourn_inferior */ - child_can_run, /* to_can_run */ - 0, /* to_notice_signals */ - 0, /* to_thread_alive */ - child_stop, /* to_stop */ - process_stratum, /* to_stratum */ - 0, /* to_next */ - 1, /* to_has_all_memory */ - 1, /* to_has_memory */ - 1, /* to_has_stack */ - 1, /* to_has_registers */ - 1, /* to_has_execution */ - 0, /* to_sections */ - 0, /* to_sections_end */ - OPS_MAGIC /* to_magic */ -}; - -void -_initialize_inftarg () -{ - add_show_from_set - (add_set_cmd ("new-console", class_support, var_boolean, - (char *) &new_console, - "Set creation of new console when creating child process.", - &setlist), - &showlist); - - add_show_from_set - (add_set_cmd ("new-group", class_support, var_boolean, - (char *) &new_group, - "Set creation of new group when creating child process.", - &setlist), - &showlist); - - add_target (&child_ops); -} -- 2.34.1