/* Target-vector operations for controlling win32 child processes, for GDB.
- Copyright 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
- Contributed by Cygnus Support.
+ Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001
+ Free Software Foundation, Inc.
+ Contributed by Cygnus Solutions, A Red Hat Company.
This file is part of GDB.
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.
-*/
+ Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
/* by Steve Chamberlain, sac@cygnus.com */
-/* We assume we're being built with and will be used for cygwin32. */
+/* We assume we're being built with and will be used for cygwin. */
#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 "completer.h"
+#include "regcache.h"
#include <signal.h>
#include <sys/types.h>
#include <fcntl.h>
#include <stdlib.h>
-
-#ifdef _MSC_VER
-#include "windefs.h"
-#else /* other WIN32 compiler */
#include <windows.h>
-#endif
+#include <imagehlp.h>
+#include <sys/cygwin.h>
#include "buildsym.h"
#include "symfile.h"
#include <sys/param.h>
#include <unistd.h>
-#define CHECK(x) check (x, __FILE__,__LINE__)
+/* The ui's event loop. */
+extern int (*ui_loop_hook) (int signo);
+
+/* If we're not using the old Cygwin header file set, define the
+ following which never should have been in the generic Win32 API
+ headers in the first place since they were our own invention... */
+#ifndef _GNU_H_WINDOWS_H
+enum
+ {
+ FLAG_TRACE_BIT = 0x100,
+ CONTEXT_DEBUGGER = (CONTEXT_FULL | CONTEXT_FLOATING_POINT)
+ };
+#endif
+#include <sys/procfs.h>
+#include <psapi.h>
+
+/* The string sent by cygwin when it processes a signal.
+ FIXME: This should be in a cygwin include file. */
+#define CYGWIN_SIGNAL_STRING "cygwin: signal"
+
+#define CHECK(x) check (x, __FILE__,__LINE__)
#define DEBUG_EXEC(x) if (debug_exec) printf x
#define DEBUG_EVENTS(x) if (debug_events) printf x
#define DEBUG_MEM(x) if (debug_memory) printf x
/* Forward declaration */
extern struct target_ops child_ops;
-static void child_stop PARAMS ((void));
+static void child_stop (void);
+static int win32_child_thread_alive (ptid_t);
+void child_kill_inferior (void);
-/* The most recently read context. Inspect ContextFlags to see what
- bits are valid. */
+static int last_sig = 0; /* Set if a signal was received from the
+ debugged process */
+/* Thread information structure used to track information that is
+ not available in gdb's thread structure. */
+typedef struct thread_info_struct
+ {
+ struct thread_info_struct *next;
+ DWORD id;
+ HANDLE h;
+ char *name;
+ int suspend_count;
+ CONTEXT context;
+ STACKFRAME sf;
+ }
+thread_info;
-static CONTEXT context;
+static thread_info thread_head;
/* 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;
+static DEBUG_EVENT current_event; /* The current debug event from
+ WaitForDebugEvent */
+static HANDLE current_process_handle; /* Currently executing process */
+static thread_info *current_thread; /* Info on currently selected thread */
+static DWORD main_thread_id; /* Thread ID of the main thread */
/* Counts of things. */
static int exception_count = 0;
/* User options. */
static int new_console = 0;
-static int new_group = 0;
-static int debug_exec = 0; /* show execution */
-static int debug_events = 0; /* show events from kernel */
-static int debug_memory = 0; /* show target memory accesses */
+static int new_group = 1;
+static int debug_exec = 0; /* show execution */
+static int debug_events = 0; /* show events from kernel */
+static int debug_memory = 0; /* show target memory accesses */
static int debug_exceptions = 0; /* show target exceptions */
/* This vector maps GDB's idea of a register's number into an address
- in the win32 exception context vector.
+ in the win32 exception context vector.
- It also contains the bit mask needed to load the register in question.
+ 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,
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[] =
-{
-#ifdef __PPC__
- {(char *) &context.Gpr0, CONTEXT_INTEGER},
- {(char *) &context.Gpr1, CONTEXT_INTEGER},
- {(char *) &context.Gpr2, CONTEXT_INTEGER},
- {(char *) &context.Gpr3, CONTEXT_INTEGER},
- {(char *) &context.Gpr4, CONTEXT_INTEGER},
- {(char *) &context.Gpr5, CONTEXT_INTEGER},
- {(char *) &context.Gpr6, CONTEXT_INTEGER},
- {(char *) &context.Gpr7, CONTEXT_INTEGER},
-
- {(char *) &context.Gpr8, CONTEXT_INTEGER},
- {(char *) &context.Gpr9, CONTEXT_INTEGER},
- {(char *) &context.Gpr10, CONTEXT_INTEGER},
- {(char *) &context.Gpr11, CONTEXT_INTEGER},
- {(char *) &context.Gpr12, CONTEXT_INTEGER},
- {(char *) &context.Gpr13, CONTEXT_INTEGER},
- {(char *) &context.Gpr14, CONTEXT_INTEGER},
- {(char *) &context.Gpr15, CONTEXT_INTEGER},
-
- {(char *) &context.Gpr16, CONTEXT_INTEGER},
- {(char *) &context.Gpr17, CONTEXT_INTEGER},
- {(char *) &context.Gpr18, CONTEXT_INTEGER},
- {(char *) &context.Gpr19, CONTEXT_INTEGER},
- {(char *) &context.Gpr20, CONTEXT_INTEGER},
- {(char *) &context.Gpr21, CONTEXT_INTEGER},
- {(char *) &context.Gpr22, CONTEXT_INTEGER},
- {(char *) &context.Gpr23, CONTEXT_INTEGER},
-
- {(char *) &context.Gpr24, CONTEXT_INTEGER},
- {(char *) &context.Gpr25, CONTEXT_INTEGER},
- {(char *) &context.Gpr26, CONTEXT_INTEGER},
- {(char *) &context.Gpr27, CONTEXT_INTEGER},
- {(char *) &context.Gpr28, CONTEXT_INTEGER},
- {(char *) &context.Gpr29, CONTEXT_INTEGER},
- {(char *) &context.Gpr30, CONTEXT_INTEGER},
- {(char *) &context.Gpr31, CONTEXT_INTEGER},
-
- {(char *) &context.Fpr0, CONTEXT_FLOATING_POINT},
- {(char *) &context.Fpr1, CONTEXT_FLOATING_POINT},
- {(char *) &context.Fpr2, CONTEXT_FLOATING_POINT},
- {(char *) &context.Fpr3, CONTEXT_FLOATING_POINT},
- {(char *) &context.Fpr4, CONTEXT_FLOATING_POINT},
- {(char *) &context.Fpr5, CONTEXT_FLOATING_POINT},
- {(char *) &context.Fpr6, CONTEXT_FLOATING_POINT},
- {(char *) &context.Fpr7, CONTEXT_FLOATING_POINT},
-
- {(char *) &context.Fpr8, CONTEXT_FLOATING_POINT},
- {(char *) &context.Fpr9, CONTEXT_FLOATING_POINT},
- {(char *) &context.Fpr10, CONTEXT_FLOATING_POINT},
- {(char *) &context.Fpr11, CONTEXT_FLOATING_POINT},
- {(char *) &context.Fpr12, CONTEXT_FLOATING_POINT},
- {(char *) &context.Fpr13, CONTEXT_FLOATING_POINT},
- {(char *) &context.Fpr14, CONTEXT_FLOATING_POINT},
- {(char *) &context.Fpr15, CONTEXT_FLOATING_POINT},
-
- {(char *) &context.Fpr16, CONTEXT_FLOATING_POINT},
- {(char *) &context.Fpr17, CONTEXT_FLOATING_POINT},
- {(char *) &context.Fpr18, CONTEXT_FLOATING_POINT},
- {(char *) &context.Fpr19, CONTEXT_FLOATING_POINT},
- {(char *) &context.Fpr20, CONTEXT_FLOATING_POINT},
- {(char *) &context.Fpr21, CONTEXT_FLOATING_POINT},
- {(char *) &context.Fpr22, CONTEXT_FLOATING_POINT},
- {(char *) &context.Fpr23, CONTEXT_FLOATING_POINT},
-
- {(char *) &context.Fpr24, CONTEXT_FLOATING_POINT},
- {(char *) &context.Fpr25, CONTEXT_FLOATING_POINT},
- {(char *) &context.Fpr26, CONTEXT_FLOATING_POINT},
- {(char *) &context.Fpr27, CONTEXT_FLOATING_POINT},
- {(char *) &context.Fpr28, CONTEXT_FLOATING_POINT},
- {(char *) &context.Fpr29, CONTEXT_FLOATING_POINT},
- {(char *) &context.Fpr30, CONTEXT_FLOATING_POINT},
- {(char *) &context.Fpr31, CONTEXT_FLOATING_POINT},
-
- {(char *) &context.Iar, CONTEXT_CONTROL},
- {(char *) &context.Msr, CONTEXT_CONTROL},
- {(char *) &context.Cr, CONTEXT_INTEGER},
- {(char *) &context.Lr, CONTEXT_CONTROL},
- {(char *) &context.Ctr, CONTEXT_CONTROL},
-
- {(char *) &context.Xer, CONTEXT_INTEGER},
- {0,0}, /* MQ, but there isn't one */
-#else
- {(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},
-#endif
+#define context_offset(x) ((int)&(((CONTEXT *)NULL)->x))
+static const int mappings[] =
+{
+ context_offset (Eax),
+ context_offset (Ecx),
+ context_offset (Edx),
+ context_offset (Ebx),
+ context_offset (Esp),
+ context_offset (Ebp),
+ context_offset (Esi),
+ context_offset (Edi),
+ context_offset (Eip),
+ context_offset (EFlags),
+ context_offset (SegCs),
+ context_offset (SegSs),
+ context_offset (SegDs),
+ context_offset (SegEs),
+ context_offset (SegFs),
+ context_offset (SegGs),
+ context_offset (FloatSave.RegisterArea[0 * 10]),
+ context_offset (FloatSave.RegisterArea[1 * 10]),
+ context_offset (FloatSave.RegisterArea[2 * 10]),
+ context_offset (FloatSave.RegisterArea[3 * 10]),
+ context_offset (FloatSave.RegisterArea[4 * 10]),
+ context_offset (FloatSave.RegisterArea[5 * 10]),
+ context_offset (FloatSave.RegisterArea[6 * 10]),
+ context_offset (FloatSave.RegisterArea[7 * 10]),
+ context_offset (FloatSave.ControlWord),
+ context_offset (FloatSave.StatusWord),
+ context_offset (FloatSave.TagWord),
+ context_offset (FloatSave.ErrorSelector),
+ context_offset (FloatSave.ErrorOffset),
+ context_offset (FloatSave.DataSelector),
+ context_offset (FloatSave.DataOffset),
+ context_offset (FloatSave.ErrorSelector)
};
+#undef context_offset
+
/* This vector maps the target's idea of an exception (extracted
from the DEBUG_EVENT structure) to GDB's idea. */
{EXCEPTION_SINGLE_STEP, TARGET_SIGNAL_TRAP},
{-1, -1}};
-static void
+/* Find a thread record given a thread id.
+ If get_context then also retrieve the context for this
+ thread. */
+static thread_info *
+thread_rec (DWORD id, int get_context)
+{
+ thread_info *th;
+
+ for (th = &thread_head; (th = th->next) != NULL;)
+ if (th->id == id)
+ {
+ if (!th->suspend_count && get_context)
+ {
+ if (get_context > 0 && id != current_event.dwThreadId)
+ th->suspend_count = SuspendThread (th->h) + 1;
+ else if (get_context < 0)
+ th->suspend_count = -1;
+
+ th->context.ContextFlags = CONTEXT_DEBUGGER;
+ GetThreadContext (th->h, &th->context);
+ }
+ return th;
+ }
+
+ return NULL;
+}
+
+/* Add a thread to the thread list */
+static thread_info *
+child_add_thread (DWORD id, HANDLE h)
+{
+ thread_info *th;
+
+ if ((th = thread_rec (id, FALSE)))
+ return th;
+
+ th = (thread_info *) xmalloc (sizeof (*th));
+ memset (th, 0, sizeof (*th));
+ th->id = id;
+ th->h = h;
+ th->next = thread_head.next;
+ thread_head.next = th;
+ add_thread (pid_to_ptid (id));
+ return th;
+}
+
+/* Clear out any old thread list and reintialize it to a
+ pristine state. */
+static void
+child_init_thread_list (void)
+{
+ thread_info *th = &thread_head;
+
+ DEBUG_EVENTS (("gdb: child_init_thread_list\n"));
+ init_thread_list ();
+ while (th->next != NULL)
+ {
+ thread_info *here = th->next;
+ th->next = here->next;
+ (void) CloseHandle (here->h);
+ xfree (here);
+ }
+}
+
+/* Delete a thread from the list of threads */
+static void
+child_delete_thread (DWORD id)
+{
+ thread_info *th;
+
+ if (info_verbose)
+ printf_unfiltered ("[Deleting %s]\n", target_pid_to_str (pid_to_ptid (id)));
+ delete_thread (pid_to_ptid (id));
+
+ for (th = &thread_head;
+ th->next != NULL && th->next->id != id;
+ th = th->next)
+ continue;
+
+ if (th->next != NULL)
+ {
+ thread_info *here = th->next;
+ th->next = here->next;
+ CloseHandle (here->h);
+ xfree (here);
+ }
+}
+
+static void
check (BOOL ok, const char *file, int line)
{
if (!ok)
- printf_filtered ("error return %s:%d was %d\n", file, line, GetLastError ());
+ printf_filtered ("error return %s:%d was %lu\n", file, line, GetLastError ());
}
static void
-child_fetch_inferior_registers (int r)
+do_child_fetch_inferior_registers (int r)
{
- if (r < 0)
+ char *context_offset = ((char *) ¤t_thread->context) + mappings[r];
+ long l;
+ if (r == FCS_REGNUM)
+ {
+ l = *((long *) context_offset) & 0xffff;
+ supply_register (r, (char *) &l);
+ }
+ else if (r == FOP_REGNUM)
+ {
+ l = (*((long *) context_offset) >> 16) & ((1 << 11) - 1);
+ supply_register (r, (char *) &l);
+ }
+ else if (r >= 0)
+ supply_register (r, context_offset);
+ else
{
for (r = 0; r < NUM_REGS; r++)
- child_fetch_inferior_registers (r);
+ do_child_fetch_inferior_registers (r);
}
+}
+
+static void
+child_fetch_inferior_registers (int r)
+{
+ current_thread = thread_rec (PIDGET (inferior_ptid), TRUE);
+ do_child_fetch_inferior_registers (r);
+}
+
+static void
+do_child_store_inferior_registers (int r)
+{
+ if (r >= 0)
+ read_register_gen (r, ((char *) ¤t_thread->context) + mappings[r]);
else
{
- supply_register (r, mappings[r].incontext);
+ for (r = 0; r < NUM_REGS; r++)
+ do_child_store_inferior_registers (r);
}
}
+/* Store a new register value into the current thread context */
static void
child_store_inferior_registers (int r)
{
- if (r < 0)
+ current_thread = thread_rec (PIDGET (inferior_ptid), TRUE);
+ do_child_store_inferior_registers (r);
+}
+
+static int psapi_loaded = 0;
+static HMODULE psapi_module_handle = NULL;
+static BOOL WINAPI (*psapi_EnumProcessModules) (HANDLE, HMODULE *, DWORD, LPDWORD) = NULL;
+static BOOL WINAPI (*psapi_GetModuleInformation) (HANDLE, HMODULE, LPMODULEINFO, DWORD) = NULL;
+static DWORD WINAPI (*psapi_GetModuleFileNameExA) (HANDLE, HMODULE, LPSTR, DWORD) = NULL;
+
+int
+psapi_get_dll_name (DWORD BaseAddress, char *dll_name_ret)
+{
+ DWORD len;
+ MODULEINFO mi;
+ int i;
+ HMODULE dh_buf[1];
+ HMODULE *DllHandle = dh_buf;
+ DWORD cbNeeded;
+ BOOL ok;
+
+ if (!psapi_loaded ||
+ psapi_EnumProcessModules == NULL ||
+ psapi_GetModuleInformation == NULL ||
+ psapi_GetModuleFileNameExA == NULL)
{
- for (r = 0; r < NUM_REGS; r++)
- child_store_inferior_registers (r);
+ if (psapi_loaded)
+ goto failed;
+ psapi_loaded = 1;
+ psapi_module_handle = LoadLibrary ("psapi.dll");
+ if (!psapi_module_handle)
+ {
+ /* printf_unfiltered ("error loading psapi.dll: %u", GetLastError ()); */
+ goto failed;
+ }
+ psapi_EnumProcessModules = GetProcAddress (psapi_module_handle, "EnumProcessModules");
+ psapi_GetModuleInformation = GetProcAddress (psapi_module_handle, "GetModuleInformation");
+ psapi_GetModuleFileNameExA = (void *) GetProcAddress (psapi_module_handle,
+ "GetModuleFileNameExA");
+ if (psapi_EnumProcessModules == NULL ||
+ psapi_GetModuleInformation == NULL ||
+ psapi_GetModuleFileNameExA == NULL)
+ goto failed;
}
- else
+
+ cbNeeded = 0;
+ ok = (*psapi_EnumProcessModules) (current_process_handle,
+ DllHandle,
+ sizeof (HMODULE),
+ &cbNeeded);
+
+ if (!ok || !cbNeeded)
+ goto failed;
+
+ DllHandle = (HMODULE *) alloca (cbNeeded);
+ if (!DllHandle)
+ goto failed;
+
+ ok = (*psapi_EnumProcessModules) (current_process_handle,
+ DllHandle,
+ cbNeeded,
+ &cbNeeded);
+ if (!ok)
+ goto failed;
+
+ for (i = 0; i < (int) (cbNeeded / sizeof (HMODULE)); i++)
{
- read_register_gen (r, mappings[r].incontext);
+ if (!(*psapi_GetModuleInformation) (current_process_handle,
+ DllHandle[i],
+ &mi,
+ sizeof (mi)))
+ error ("Can't get module info");
+
+ len = (*psapi_GetModuleFileNameExA) (current_process_handle,
+ DllHandle[i],
+ dll_name_ret,
+ MAX_PATH);
+ if (len == 0)
+ error ("Error getting dll name: %u\n", GetLastError ());
+
+ if ((DWORD) (mi.lpBaseOfDll) == BaseAddress)
+ return 1;
}
+
+failed:
+ dll_name_ret[0] = '\0';
+ return 0;
}
+/* Encapsulate the information required in a call to
+ symbol_file_add_args */
+struct safe_symbol_file_add_args
+{
+ char *name;
+ int from_tty;
+ struct section_addr_info *addrs;
+ int mainline;
+ int flags;
+ struct ui_file *err, *out;
+ struct objfile *ret;
+};
+
+/* Maintain a linked list of "so" information. */
+struct so_stuff
+{
+ struct so_stuff *next, **last;
+ DWORD load_addr;
+ char name[0];
+}
+solib_start, *solib_end;
+
+/* Call symbol_file_add with stderr redirected. We don't care if there
+ are errors. */
+static int
+safe_symbol_file_add_stub (void *argv)
+{
+#define p ((struct safe_symbol_file_add_args *)argv)
+ struct so_stuff *so = solib_start.next;
+
+ while ((so = so->next))
+ if (strcasecmp (so->name, p->name) == 0)
+ return 0;
+ p->ret = symbol_file_add (p->name, p->from_tty, p->addrs, p->mainline, p->flags);
+ return !!p->ret;
+#undef p
+}
+
+/* Restore gdb's stderr after calling symbol_file_add */
+static void
+safe_symbol_file_add_cleanup (void *p)
+{
+#define sp ((struct safe_symbol_file_add_args *)p)
+ gdb_flush (gdb_stderr);
+ gdb_flush (gdb_stdout);
+ /* ui_file_delete (gdb_stderr); */
+ ui_file_delete (gdb_stdout);
+ /* gdb_stderr = sp->err; */
+ gdb_stdout = sp->out;
+#undef sp
+}
+
+/* symbol_file_add wrapper that prevents errors from being displayed. */
+static struct objfile *
+safe_symbol_file_add (char *name, int from_tty,
+ struct section_addr_info *addrs,
+ int mainline, int flags)
+{
+ struct safe_symbol_file_add_args p;
+ struct cleanup *cleanup;
+
+ cleanup = make_cleanup (safe_symbol_file_add_cleanup, &p);
+
+ p.err = gdb_stderr;
+ p.out = gdb_stdout;
+ gdb_flush (gdb_stderr);
+ gdb_flush (gdb_stdout);
+ /* gdb_stderr = ui_file_new (); */
+ gdb_stdout = ui_file_new ();
+ p.name = name;
+ p.from_tty = from_tty;
+ p.addrs = addrs;
+ p.mainline = mainline;
+ p.flags = flags;
+ catch_errors (safe_symbol_file_add_stub, &p, "", RETURN_MASK_ERROR);
+
+ do_cleanups (cleanup);
+ return p.ret;
+}
+
+/* Remember the maximum DLL length for printing in info dll command. */
+int max_dll_name_len;
+
+static void
+register_loaded_dll (const char *name, DWORD load_addr)
+{
+ struct so_stuff *so;
+ so = (struct so_stuff *) xmalloc (sizeof (struct so_stuff) + strlen (name) + 8 + 2);
+ so->load_addr = load_addr;
+ strcpy (so->name, name);
+
+ solib_end->next = so;
+ solib_end = so;
+ so->next = NULL;
+}
/* Wait for child to do something. Return pid of child, or -1 in case
of error; store status through argument pointer OURSTATUS. */
-
static int
-handle_load_dll (char *eventp)
+handle_load_dll (void *dummy ATTRIBUTE_UNUSED)
{
- DEBUG_EVENT * event = (DEBUG_EVENT *)eventp;
+ LOAD_DLL_DEBUG_INFO *event = ¤t_event.u.LoadDll;
DWORD dll_name_ptr;
DWORD done;
+ char dll_buf[MAX_PATH + 1];
+ char *dll_name = NULL;
+ int len;
+ char *p;
+
+ dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0';
- ReadProcessMemory (current_process,
- (DWORD) event->u.LoadDll.lpImageName,
- (char *) &dll_name_ptr,
- sizeof (dll_name_ptr), &done);
+ if (!psapi_get_dll_name ((DWORD) (event->lpBaseOfDll), dll_buf))
+ dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0';
- /* See if we could read the address of a string, and that the
- address isn't null. */
+ dll_name = dll_buf;
- if (done == sizeof (dll_name_ptr) && dll_name_ptr)
+ /* Attempt to read the name of the dll that was detected.
+ This is documented to work only when actively debugging
+ a program. It will not work for attached processes. */
+ if (dll_name == NULL || *dll_name == '\0')
{
- char *dll_name, *dll_basename;
- struct objfile *objfile;
- char unix_dll_name[MAX_PATH];
- int size = event->u.LoadDll.fUnicode ? sizeof (WCHAR) : sizeof (char);
+ DWORD size = event->fUnicode ? sizeof (WCHAR) : sizeof (char);
int len = 0;
char b[2];
+
+ ReadProcessMemory (current_process_handle,
+ (LPCVOID) event->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)
+ return 1;
+
do
{
- ReadProcessMemory (current_process,
- dll_name_ptr + len * size,
+ ReadProcessMemory (current_process_handle,
+ (LPCVOID) (dll_name_ptr + len * size),
&b,
size,
&done);
dll_name = alloca (len);
- if (event->u.LoadDll.fUnicode)
+ if (event->fUnicode)
{
WCHAR *unicode_dll_name = (WCHAR *) alloca (len * sizeof (WCHAR));
- ReadProcessMemory (current_process,
- dll_name_ptr,
+ ReadProcessMemory (current_process_handle,
+ (LPCVOID) dll_name_ptr,
unicode_dll_name,
len * sizeof (WCHAR),
&done);
}
else
{
- ReadProcessMemory (current_process,
- dll_name_ptr,
+ ReadProcessMemory (current_process_handle,
+ (LPCVOID) dll_name_ptr,
dll_name,
len,
&done);
}
-
- /* FIXME: Can we delete this call? */
- cygwin32_conv_to_posix_path (dll_name, unix_dll_name);
-
- /* FIXME!! It would be nice to define one symbol which pointed to the
- front of the dll if we can't find any symbols. */
-
- if (!(dll_basename = strrchr(dll_name, '\\')))
- dll_basename = strrchr(dll_name, '/');
-
- ALL_OBJFILES(objfile)
- {
- char *objfile_basename;
- if (!(objfile_basename = strrchr(objfile->name, '\\')))
- objfile_basename = strrchr(objfile->name, '/');
-
- if (dll_basename && objfile_basename &&
- strcmp(dll_basename+1, objfile_basename+1) == 0)
- {
- printf_unfiltered ("%s (symbols previously loaded)\n",
- dll_basename + 1);
- return 1;
- }
- }
-
- context.ContextFlags = CONTEXT_FULL | CONTEXT_FLOATING_POINT;
- GetThreadContext (current_thread, &context);
-
- /* The symbols in a dll are offset by 0x1000, which is the
- the offset from 0 of the first byte in an image - because
- of the file header and the section alignment.
-
- FIXME: Is this the real reason that we need the 0x1000 ? */
-
-
- symbol_file_add (unix_dll_name, 0,
- (int) event->u.LoadDll.lpBaseOfDll + 0x1000, 0, 0, 0);
-
- printf_unfiltered ("%x:%s\n", event->u.LoadDll.lpBaseOfDll,
- unix_dll_name);
}
+
+ if (!dll_name)
+ return 1;
+
+ (void) strlwr (dll_name);
+
+ while ((p = strchr (dll_name, '\\')))
+ *p = '/';
+
+ register_loaded_dll (dll_name, (DWORD) event->lpBaseOfDll + 0x1000);
+ len = strlen (dll_name);
+ if (len > max_dll_name_len)
+ max_dll_name_len = len;
+
return 1;
}
+/* Return name of last loaded DLL. */
+char *
+child_solib_loaded_library_pathname (int pid ATTRIBUTE_UNUSED)
+{
+ return !solib_end || !solib_end->name[0] ? NULL : solib_end->name;
+}
+
+/* Clear list of loaded DLLs. */
+void
+child_clear_solibs (void)
+{
+ struct so_stuff *so, *so1 = solib_start.next;
+
+ while ((so = so1) != NULL)
+ {
+ so1 = so->next;
+ xfree (so);
+ }
+
+ solib_start.next = NULL;
+ solib_end = &solib_start;
+ max_dll_name_len = sizeof ("DLL Name") - 1;
+}
+
+/* Add DLL symbol information. */
+static void
+solib_symbols_add (char *name, int from_tty, CORE_ADDR load_addr)
+{
+ struct section_addr_info section_addrs;
+ /* The symbols in a dll are offset by 0x1000, which is the
+ the offset from 0 of the first byte in an image - because
+ of the file header and the section alignment. */
+
+ if (!name || !name[0])
+ return;
+
+ memset (§ion_addrs, 0, sizeof (section_addrs));
+ section_addrs.other[0].name = ".text";
+ section_addrs.other[0].addr = load_addr;
+ safe_symbol_file_add (name, from_tty, 0, 0, OBJF_SHARED);
+
+ return;
+}
+
+/* Load DLL symbol info. */
+void
+dll_symbol_command (char *args, int from_tty ATTRIBUTE_UNUSED)
+{
+ int n;
+ dont_repeat ();
+
+ if (args == NULL)
+ error ("dll-symbols requires a file name");
+
+ n = strlen (args);
+ if (n > 4 && strcasecmp (args + n - 4, ".dll") != 0)
+ {
+ char *newargs = (char *) alloca (n + 4 + 1);
+ strcpy (newargs, args);
+ strcat (newargs, ".dll");
+ args = newargs;
+ }
+
+ safe_symbol_file_add (args, 0, NULL, 0, OBJF_SHARED | OBJF_USERLOADED);
+}
+
+/* List currently loaded DLLs. */
+void
+info_dll_command (char *ignore ATTRIBUTE_UNUSED, int from_tty ATTRIBUTE_UNUSED)
+{
+ struct so_stuff *so = &solib_start;
+
+ if (!so->next)
+ return;
+
+ printf ("%*s Load Address\n", -max_dll_name_len, "DLL Name");
+ while ((so = so->next) != NULL)
+ printf_filtered ("%*s %08lx\n", -max_dll_name_len, so->name, so->load_addr);
+
+ return;
+}
+
+/* Handle DEBUG_STRING output from child process.
+ Cygwin prepends its messages with a "cygwin:". Interpret this as
+ a Cygwin signal. Otherwise just print the string as a warning. */
static int
-handle_exception (DEBUG_EVENT * event, struct target_waitstatus *ourstatus)
+handle_output_debug_string (struct target_waitstatus *ourstatus)
{
- int i;
- int done = 0;
+ char *s;
+ int gotasig = FALSE;
+
+ if (!target_read_string
+ ((CORE_ADDR) current_event.u.DebugString.lpDebugStringData, &s, 1024, 0)
+ || !s || !*s)
+ return gotasig;
+
+ if (strncmp (s, CYGWIN_SIGNAL_STRING, sizeof (CYGWIN_SIGNAL_STRING) - 1) != 0)
+ {
+ if (strncmp (s, "cYg", 3) != 0)
+ warning ("%s", s);
+ }
+ else
+ {
+ char *p;
+ int sig = strtol (s + sizeof (CYGWIN_SIGNAL_STRING) - 1, &p, 0);
+ gotasig = target_signal_from_host (sig);
+ ourstatus->value.sig = gotasig;
+ if (gotasig)
+ ourstatus->kind = TARGET_WAITKIND_STOPPED;
+ }
+
+ xfree (s);
+ return gotasig;
+}
+
+static int
+handle_exception (struct target_waitstatus *ourstatus)
+{
+ thread_info *th;
+ DWORD code = current_event.u.Exception.ExceptionRecord.ExceptionCode;
+
ourstatus->kind = TARGET_WAITKIND_STOPPED;
+ /* Record the context of the current thread */
+ th = thread_rec (current_event.dwThreadId, -1);
- switch (event->u.Exception.ExceptionRecord.ExceptionCode)
+ switch (code)
{
case EXCEPTION_ACCESS_VIOLATION:
- DEBUG_EXCEPT (("gdb: Target exception ACCESS_VIOLATION at 0x%08x\n",
- event->u.Exception.ExceptionRecord.ExceptionAddress));
+ DEBUG_EXCEPT (("gdb: Target exception ACCESS_VIOLATION at 0x%08lx\n",
+ (DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress));
ourstatus->value.sig = TARGET_SIGNAL_SEGV;
+ last_sig = SIGSEGV;
+ break;
+ case STATUS_FLOAT_UNDERFLOW:
+ case STATUS_FLOAT_DIVIDE_BY_ZERO:
+ case STATUS_FLOAT_OVERFLOW:
+ case STATUS_INTEGER_DIVIDE_BY_ZERO:
+ DEBUG_EXCEPT (("gdb: Target exception STACK_OVERFLOW at 0x%08lx\n",
+ (DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress));
+ ourstatus->value.sig = TARGET_SIGNAL_FPE;
+ last_sig = SIGFPE;
break;
case STATUS_STACK_OVERFLOW:
- DEBUG_EXCEPT (("gdb: Target exception STACK_OVERFLOW at 0x%08x\n",
- event->u.Exception.ExceptionRecord.ExceptionAddress));
+ DEBUG_EXCEPT (("gdb: Target exception STACK_OVERFLOW at 0x%08lx\n",
+ (DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress));
ourstatus->value.sig = TARGET_SIGNAL_SEGV;
break;
case EXCEPTION_BREAKPOINT:
- DEBUG_EXCEPT (("gdb: Target exception BREAKPOINT at 0x%08x\n",
- event->u.Exception.ExceptionRecord.ExceptionAddress));
+ DEBUG_EXCEPT (("gdb: Target exception BREAKPOINT at 0x%08lx\n",
+ (DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress));
ourstatus->value.sig = TARGET_SIGNAL_TRAP;
break;
case DBG_CONTROL_C:
- DEBUG_EXCEPT (("gdb: Target exception CONTROL_C at 0x%08x\n",
- event->u.Exception.ExceptionRecord.ExceptionAddress));
+ DEBUG_EXCEPT (("gdb: Target exception CONTROL_C at 0x%08lx\n",
+ (DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress));
ourstatus->value.sig = TARGET_SIGNAL_INT;
+ last_sig = SIGINT; /* FIXME - should check pass state */
break;
case EXCEPTION_SINGLE_STEP:
- DEBUG_EXCEPT (("gdb: Target exception SINGLE_STEP at 0x%08x\n",
- event->u.Exception.ExceptionRecord.ExceptionAddress));
+ DEBUG_EXCEPT (("gdb: Target exception SINGLE_STEP at 0x%08lx\n",
+ (DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress));
ourstatus->value.sig = TARGET_SIGNAL_TRAP;
break;
+ case EXCEPTION_ILLEGAL_INSTRUCTION:
+ DEBUG_EXCEPT (("gdb: Target exception SINGLE_ILL at 0x%08lx\n",
+ (DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress));
+ ourstatus->value.sig = TARGET_SIGNAL_ILL;
+ last_sig = SIGILL;
+ break;
default:
- /* This may be a structured exception handling exception. In
- that case, we want to let the program try to handle it, and
- only break if we see the exception a second time. */
- if (event->u.Exception.dwFirstChance)
+ if (current_event.u.Exception.dwFirstChance)
return 0;
-
- printf_unfiltered ("gdb: unknown target exception 0x%08x at 0x%08x\n",
- event->u.Exception.ExceptionRecord.ExceptionCode,
- event->u.Exception.ExceptionRecord.ExceptionAddress);
+ printf_unfiltered ("gdb: unknown target exception 0x%08lx at 0x%08lx\n",
+ current_event.u.Exception.ExceptionRecord.ExceptionCode,
+ (DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress);
ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN;
break;
}
- context.ContextFlags = CONTEXT_FULL | CONTEXT_FLOATING_POINT;
- GetThreadContext (current_thread, &context);
exception_count++;
return 1;
}
+/* Resume all artificially suspended threads if we are continuing
+ execution */
+static BOOL
+child_continue (DWORD continue_status, int id)
+{
+ int i;
+ thread_info *th;
+ BOOL res;
+
+ DEBUG_EVENTS (("ContinueDebugEvent (cpid=%ld, ctid=%ld, DBG_CONTINUE);\n",
+ current_event.dwProcessId, current_event.dwThreadId));
+ res = ContinueDebugEvent (current_event.dwProcessId,
+ current_event.dwThreadId,
+ continue_status);
+ continue_status = 0;
+ if (res)
+ for (th = &thread_head; (th = th->next) != NULL;)
+ if (((id == -1) || (id == (int) th->id)) && th->suspend_count)
+ {
+ for (i = 0; i < th->suspend_count; i++)
+ (void) ResumeThread (th->h);
+ th->suspend_count = 0;
+ }
+
+ return res;
+}
+
+/* Get the next event from the child. Return 1 if the event requires
+ handling by WFI (or whatever).
+ */
static int
-child_wait (int pid, struct target_waitstatus *ourstatus)
+get_child_debug_event (int pid ATTRIBUTE_UNUSED, struct target_waitstatus *ourstatus)
+{
+ BOOL debug_event;
+ DWORD continue_status, event_code;
+ thread_info *th = NULL;
+ static thread_info dummy_thread_info;
+ int retval = 0;
+
+ last_sig = 0;
+
+ if (!(debug_event = WaitForDebugEvent (¤t_event, 1000)))
+ goto out;
+
+ event_count++;
+ continue_status = DBG_CONTINUE;
+
+ event_code = current_event.dwDebugEventCode;
+ ourstatus->kind = TARGET_WAITKIND_SPURIOUS;
+
+ switch (event_code)
+ {
+ case CREATE_THREAD_DEBUG_EVENT:
+ DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n",
+ (unsigned) current_event.dwProcessId,
+ (unsigned) current_event.dwThreadId,
+ "CREATE_THREAD_DEBUG_EVENT"));
+ /* Record the existence of this thread */
+ th = child_add_thread (current_event.dwThreadId,
+ current_event.u.CreateThread.hThread);
+ if (info_verbose)
+ printf_unfiltered ("[New %s]\n",
+ target_pid_to_str (
+ pid_to_ptid (current_event.dwThreadId)));
+ retval = current_event.dwThreadId;
+ break;
+
+ case EXIT_THREAD_DEBUG_EVENT:
+ DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
+ (unsigned) current_event.dwProcessId,
+ (unsigned) current_event.dwThreadId,
+ "EXIT_THREAD_DEBUG_EVENT"));
+ child_delete_thread (current_event.dwThreadId);
+ th = &dummy_thread_info;
+ break;
+
+ case CREATE_PROCESS_DEBUG_EVENT:
+ DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
+ (unsigned) current_event.dwProcessId,
+ (unsigned) current_event.dwThreadId,
+ "CREATE_PROCESS_DEBUG_EVENT"));
+ CloseHandle (current_event.u.CreateProcessInfo.hFile);
+ current_process_handle = current_event.u.CreateProcessInfo.hProcess;
+
+ main_thread_id = current_event.dwThreadId;
+ /* Add the main thread */
+#if 0
+ th = child_add_thread (current_event.dwProcessId,
+ current_event.u.CreateProcessInfo.hProcess);
+#endif
+ th = child_add_thread (main_thread_id,
+ current_event.u.CreateProcessInfo.hThread);
+ retval = ourstatus->value.related_pid = current_event.dwThreadId;
+ break;
+
+ case EXIT_PROCESS_DEBUG_EVENT:
+ DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
+ (unsigned) current_event.dwProcessId,
+ (unsigned) current_event.dwThreadId,
+ "EXIT_PROCESS_DEBUG_EVENT"));
+ ourstatus->kind = TARGET_WAITKIND_EXITED;
+ ourstatus->value.integer = current_event.u.ExitProcess.dwExitCode;
+ CloseHandle (current_process_handle);
+ retval = main_thread_id;
+ break;
+
+ case LOAD_DLL_DEBUG_EVENT:
+ DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
+ (unsigned) current_event.dwProcessId,
+ (unsigned) current_event.dwThreadId,
+ "LOAD_DLL_DEBUG_EVENT"));
+ CloseHandle (current_event.u.LoadDll.hFile);
+ catch_errors (handle_load_dll, NULL, (char *) "", RETURN_MASK_ALL);
+ registers_changed (); /* mark all regs invalid */
+ ourstatus->kind = TARGET_WAITKIND_LOADED;
+ ourstatus->value.integer = 0;
+ retval = main_thread_id;
+ break;
+
+ case UNLOAD_DLL_DEBUG_EVENT:
+ DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
+ (unsigned) current_event.dwProcessId,
+ (unsigned) current_event.dwThreadId,
+ "UNLOAD_DLL_DEBUG_EVENT"));
+ break; /* FIXME: don't know what to do here */
+
+ case EXCEPTION_DEBUG_EVENT:
+ DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
+ (unsigned) current_event.dwProcessId,
+ (unsigned) current_event.dwThreadId,
+ "EXCEPTION_DEBUG_EVENT"));
+ if (handle_exception (ourstatus))
+ retval = current_event.dwThreadId;
+ break;
+
+ case OUTPUT_DEBUG_STRING_EVENT: /* message from the kernel */
+ DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
+ (unsigned) current_event.dwProcessId,
+ (unsigned) current_event.dwThreadId,
+ "OUTPUT_DEBUG_STRING_EVENT"));
+ if (handle_output_debug_string (ourstatus))
+ retval = main_thread_id;
+ break;
+
+ default:
+ printf_unfiltered ("gdb: kernel event for pid=%ld tid=%ld\n",
+ (DWORD) current_event.dwProcessId,
+ (DWORD) current_event.dwThreadId);
+ printf_unfiltered (" unknown event code %ld\n",
+ current_event.dwDebugEventCode);
+ break;
+ }
+
+ if (!retval)
+ CHECK (child_continue (continue_status, -1));
+ else
+ {
+ current_thread = th ? : thread_rec (current_event.dwThreadId, TRUE);
+ inferior_ptid = pid_to_ptid (retval);
+ }
+
+out:
+ return retval;
+}
+
+/* Wait for interesting events to occur in the target process. */
+static ptid_t
+child_wait (ptid_t ptid, struct target_waitstatus *ourstatus)
{
+ int pid = PIDGET (ptid);
+
/* 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
+ which needs a current_thread->h. 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);
- char *p;
- DWORD continue_status;
+ int retval = get_child_debug_event (pid, ourstatus);
+ if (retval)
+ return pid_to_ptid (retval);
+ else
+ {
+ int detach = 0;
- event_count++;
+ if (ui_loop_hook != NULL)
+ detach = ui_loop_hook (0);
- current_thread_id = event.dwThreadId;
- current_process_id = event.dwProcessId;
+ if (detach)
+ child_kill_inferior ();
+ }
+ }
+}
- continue_status = DBG_CONTINUE;
+static void
+do_initial_child_stuff (DWORD pid)
+{
+ extern int stop_after_trap;
- switch (event.dwDebugEventCode)
- {
- case CREATE_THREAD_DEBUG_EVENT:
- DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
- event.dwProcessId, event.dwThreadId,
- "CREATE_THREAD_DEBUG_EVENT"));
- break;
- case EXIT_THREAD_DEBUG_EVENT:
- DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
- event.dwProcessId, event.dwThreadId,
- "EXIT_THREAD_DEBUG_EVENT"));
- break;
- case CREATE_PROCESS_DEBUG_EVENT:
- DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
- event.dwProcessId, event.dwThreadId,
- "CREATE_PROCESS_DEBUG_EVENT"));
- break;
-
- case EXIT_PROCESS_DEBUG_EVENT:
- DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
- event.dwProcessId, event.dwThreadId,
- "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:
- DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
- event.dwProcessId, event.dwThreadId,
- "LOAD_DLL_DEBUG_EVENT"));
- catch_errors (handle_load_dll,
- (char*) &event,
- "\n[failed reading symbols from DLL]\n",
- RETURN_MASK_ALL);
- registers_changed(); /* mark all regs invalid */
- break;
- case UNLOAD_DLL_DEBUG_EVENT:
- DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
- event.dwProcessId, event.dwThreadId,
- "UNLOAD_DLL_DEBUG_EVENT"));
- break; /* FIXME: don't know what to do here */
- case EXCEPTION_DEBUG_EVENT:
- DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
- event.dwProcessId, event.dwThreadId,
- "EXCEPTION_DEBUG_EVENT"));
- if (handle_exception (&event, ourstatus))
- return current_process_id;
- continue_status = DBG_EXCEPTION_NOT_HANDLED;
- break;
-
- case OUTPUT_DEBUG_STRING_EVENT: /* message from the kernel */
- DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
- event.dwProcessId, event.dwThreadId,
- "OUTPUT_DEBUG_STRING_EVENT"));
- if (target_read_string
- ((CORE_ADDR) event.u.DebugString.lpDebugStringData,
- &p, 1024, 0) && p && *p)
- {
- warning(p);
- free(p);
- }
- break;
- default:
- printf_unfiltered ("gdb: kernel event for pid=%d tid=%d\n",
- event.dwProcessId, event.dwThreadId);
- printf_unfiltered (" unknown event code %d\n",
- event.dwDebugEventCode);
- break;
- }
- DEBUG_EVENTS (("ContinueDebugEvent (cpid=%d, ctid=%d, DBG_CONTINUE);\n",
- current_process_id, current_thread_id));
- CHECK (ContinueDebugEvent (current_process_id,
- current_thread_id,
- continue_status));
+ last_sig = 0;
+ event_count = 0;
+ exception_count = 0;
+ current_event.dwProcessId = pid;
+ memset (¤t_event, 0, sizeof (current_event));
+ push_target (&child_ops);
+ child_init_thread_list ();
+ child_clear_solibs ();
+ clear_proceed_status ();
+ init_wait_for_inferior ();
+
+ target_terminal_init ();
+ target_terminal_inferior ();
+
+ while (1)
+ {
+ stop_after_trap = 1;
+ wait_for_inferior ();
+ if (stop_signal != TARGET_SIGNAL_TRAP)
+ resume (0, stop_signal);
+ else
+ break;
}
+ stop_after_trap = 0;
+ return;
}
/* Attach to process PID, then initialize for debugging it. */
static void
-child_attach (args, from_tty)
- char *args;
- int from_tty;
+child_attach (char *args, int from_tty)
{
BOOL ok;
+ DWORD pid;
if (!args)
error_no_arg ("process-id to attach");
- current_process_id = strtoul (args, 0, 0);
-
- ok = DebugActiveProcess (current_process_id);
+ pid = strtoul (args, 0, 0);
+ ok = DebugActiveProcess (pid);
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));
+ target_pid_to_str (pid_to_ptid (pid)));
else
printf_unfiltered ("Attaching to %s\n",
- target_pid_to_str (current_process_id));
+ target_pid_to_str (pid_to_ptid (pid)));
gdb_flush (gdb_stdout);
}
- inferior_pid = current_process_id;
- push_target (&child_ops);
+ do_initial_child_stuff (pid);
+ target_terminal_ours ();
}
static void
-child_detach (args, from_tty)
- char *args;
- int from_tty;
+child_detach (char *args ATTRIBUTE_UNUSED, int from_tty)
{
if (from_tty)
{
if (exec_file == 0)
exec_file = "";
printf_unfiltered ("Detaching from program: %s %s\n", exec_file,
- target_pid_to_str (inferior_pid));
+ target_pid_to_str (inferior_ptid));
gdb_flush (gdb_stdout);
}
- inferior_pid = 0;
+ inferior_ptid = null_ptid;
unpush_target (&child_ops);
}
/* Print status information about what we're accessing. */
static void
-child_files_info (ignore)
- struct target_ops *ignore;
+child_files_info (struct target_ops *ignore ATTRIBUTE_UNUSED)
{
printf_unfiltered ("\tUsing the running image of %s %s.\n",
- attach_flag ? "attached" : "child", target_pid_to_str (inferior_pid));
+ attach_flag ? "attached" : "child", target_pid_to_str (inferior_ptid));
}
/* ARGSUSED */
static void
-child_open (arg, from_tty)
- char *arg;
- int from_tty;
+child_open (char *arg ATTRIBUTE_UNUSED, int from_tty ATTRIBUTE_UNUSED)
{
error ("Use the \"run\" command to start a Unix child process.");
}
-/* Start an inferior win32 child process and sets inferior_pid to its pid.
+/* Start an inferior win32 child process and sets inferior_ptid 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;
+child_create_inferior (char *exec_file, char *allargs, char **env)
{
char real_path[MAXPATHLEN];
char *winenv;
char *temp;
- int envlen;
+ int envlen;
int i;
-
STARTUPINFO si;
PROCESS_INFORMATION pi;
- struct target_waitstatus dummy;
BOOL ret;
DWORD flags;
char *args;
if (!exec_file)
- {
- error ("No executable specified, use `target exec'.\n");
- }
+ error ("No executable specified, use `target exec'.\n");
memset (&si, 0, sizeof (si));
si.cb = sizeof (si);
- cygwin32_conv_to_win32_path (exec_file, real_path);
+ cygwin_conv_to_win32_path (exec_file, real_path);
- flags = DEBUG_ONLY_THIS_PROCESS;
+ flags = DEBUG_ONLY_THIS_PROCESS;
if (new_group)
flags |= CREATE_NEW_PROCESS_GROUP;
to posix style if necessary. */
static const char *conv_path_names[] =
- {
- "PATH=",
- 0
- };
+ {
+ "PATH=",
+ 0
+ };
/* CreateProcess takes the environment list as a null terminated set of
strings (i.e. two nulls terminate the list). */
len = strlen (conv_path_names[j]);
if (strncmp (conv_path_names[j], env[i], len) == 0)
{
- if (cygwin32_posix_path_list_p (env[i] + len))
+ if (cygwin_posix_path_list_p (env[i] + len))
envlen += len
- + cygwin32_posix_to_win32_path_list_buf_size (env[i] + len);
+ + cygwin_posix_to_win32_path_list_buf_size (env[i] + len);
else
envlen += strlen (env[i]) + 1;
break;
winenv = alloca (envlen + 1);
/* Copy env strings into new buffer. */
- for (temp = winenv, i = 0; env[i] && *env[i]; i++)
+ for (temp = winenv, i = 0; env[i] && *env[i]; i++)
{
int j, len;
len = strlen (conv_path_names[j]);
if (strncmp (conv_path_names[j], env[i], len) == 0)
{
- if (cygwin32_posix_path_list_p (env[i] + len))
+ if (cygwin_posix_path_list_p (env[i] + len))
{
memcpy (temp, env[i], len);
- cygwin32_posix_to_win32_path_list (env[i] + len, temp + len);
+ cygwin_posix_to_win32_path_list (env[i] + len, temp + len);
}
else
strcpy (temp, env[i]);
}
ret = CreateProcess (0,
- args, /* command line */
+ args, /* command line */
NULL, /* Security */
NULL, /* thread */
TRUE, /* inherit handles */
&si,
&pi);
if (!ret)
- error ("Error creating process %s, (error %d)\n", exec_file, GetLastError());
+ error ("Error creating process %s, (error %d)\n", exec_file, GetLastError ());
- 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);
+ CloseHandle (pi.hThread);
+ CloseHandle (pi.hProcess);
+ do_initial_child_stuff (pi.dwProcessId);
+ /* child_continue (DBG_CONTINUE, -1); */
proceed ((CORE_ADDR) - 1, TARGET_SIGNAL_0, 0);
}
static void
-child_mourn_inferior ()
+child_mourn_inferior (void)
{
- (void) ContinueDebugEvent (current_process_id,
- current_thread_id,
- DBG_CONTINUE);
+ (void) child_continue (DBG_CONTINUE, -1);
unpush_target (&child_ops);
generic_mourn_inferior ();
}
^C on the controlling terminal. */
static void
-child_stop ()
+child_stop (void)
{
DEBUG_EVENTS (("gdb: GenerateConsoleCtrlEvent (CTRLC_EVENT, 0)\n"));
- CHECK (GenerateConsoleCtrlEvent (CTRL_C_EVENT, 0));
- registers_changed(); /* refresh register state */
+ CHECK (GenerateConsoleCtrlEvent (CTRL_C_EVENT, current_event.dwProcessId));
+ registers_changed (); /* refresh register state */
}
int
child_xfer_memory (CORE_ADDR memaddr, char *our, int len,
- int write, struct target_ops *target)
+ int write, struct mem_attrib *mem ATTRIBUTE_UNUSED,
+ struct target_ops *target ATTRIBUTE_UNUSED)
{
DWORD done;
if (write)
{
- DEBUG_MEM (("gdb: write target memory, %d bytes at 0x%08x\n",
- len, memaddr));
- WriteProcessMemory (current_process, memaddr, our, len, &done);
- FlushInstructionCache (current_process, memaddr, len);
+ DEBUG_MEM (("gdb: write target memory, %d bytes at 0x%08lx\n",
+ len, (DWORD) memaddr));
+ WriteProcessMemory (current_process_handle, (LPVOID) memaddr, our,
+ len, &done);
+ FlushInstructionCache (current_process_handle, (LPCVOID) memaddr, len);
}
else
{
- DEBUG_MEM (("gdb: read target memory, %d bytes at 0x%08x\n",
- len, memaddr));
- ReadProcessMemory (current_process, memaddr, our, len, &done);
+ DEBUG_MEM (("gdb: read target memory, %d bytes at 0x%08lx\n",
+ len, (DWORD) memaddr));
+ ReadProcessMemory (current_process_handle, (LPCVOID) memaddr, our, len,
+ &done);
}
return done;
}
void
child_kill_inferior (void)
{
- CHECK (TerminateProcess (current_process, 0));
-
+ CHECK (TerminateProcess (current_process_handle, 0));
+
for (;;)
{
- DEBUG_EVENT event;
- if (!ContinueDebugEvent (current_process_id,
- current_thread_id,
- DBG_CONTINUE))
+ if (!child_continue (DBG_CONTINUE, -1))
break;
- if (!WaitForDebugEvent (&event, INFINITE))
+ if (!WaitForDebugEvent (¤t_event, INFINITE))
break;
- current_thread_id = event.dwThreadId;
- current_process_id = event.dwProcessId;
- if (event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT)
+ if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT)
break;
}
- CHECK (CloseHandle (current_process));
- CHECK (CloseHandle (current_thread));
- target_mourn_inferior(); /* or just child_mourn_inferior? */
+ CHECK (CloseHandle (current_process_handle));
+
+ /* this may fail in an attached process so don't check. */
+ (void) CloseHandle (current_thread->h);
+ target_mourn_inferior (); /* or just child_mourn_inferior? */
}
void
-child_resume (int pid, int step, enum target_signal signal)
+child_resume (ptid_t ptid, int step, enum target_signal sig)
{
- DEBUG_EXEC (("gdb: child_resume (pid=%d, step=%d, signal=%d);\n",
- pid, step, signal));
+ thread_info *th;
+ DWORD continue_status = last_sig > 0 && last_sig < NSIG ?
+ DBG_EXCEPTION_NOT_HANDLED : DBG_CONTINUE;
+ int pid = PIDGET (ptid);
- if (step)
- {
-#ifdef __PPC__
- warning ("Single stepping not done.\n");
-#endif
-#ifdef i386
- /* Single step by setting t bit */
- child_fetch_inferior_registers (PS_REGNUM);
- context.EFlags |= FLAG_TRACE_BIT;
-#endif
- }
+ last_sig = 0;
- if (context.ContextFlags)
- {
- CHECK (SetThreadContext (current_thread, &context));
- context.ContextFlags = 0;
- }
+ DEBUG_EXEC (("gdb: child_resume (pid=%d, step=%d, sig=%d);\n",
+ pid, step, sig));
- if (signal)
+ /* Get context for currently selected thread */
+ th = thread_rec (current_event.dwThreadId, FALSE);
+ if (th)
{
- fprintf_unfiltered (gdb_stderr, "Can't send signals to the child.\n");
+ if (step)
+ {
+ /* Single step by setting t bit */
+ child_fetch_inferior_registers (PS_REGNUM);
+ th->context.EFlags |= FLAG_TRACE_BIT;
+ }
+
+ if (th->context.ContextFlags)
+ {
+ CHECK (SetThreadContext (th->h, &th->context));
+ th->context.ContextFlags = 0;
+ }
}
- DEBUG_EVENTS (("gdb: ContinueDebugEvent (cpid=%d, ctid=%d, DBG_CONTINUE);\n",
- current_process_id, current_thread_id));
- CHECK (ContinueDebugEvent (current_process_id,
- current_thread_id,
- DBG_CONTINUE));
+ /* Allow continuing with the same signal that interrupted us.
+ Otherwise complain. */
+
+ child_continue (continue_status, pid);
}
static void
-child_prepare_to_store ()
+child_prepare_to_store (void)
{
/* Do nothing, since we can store individual regs */
}
static int
-child_can_run ()
+child_can_run (void)
{
return 1;
}
static void
-child_close ()
-{
- DEBUG_EVENTS (("gdb: child_close, inferior_pid=%d\n", inferior_pid));
-}
-
-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 */
-};
+child_close (int x ATTRIBUTE_UNUSED)
+{
+ DEBUG_EVENTS (("gdb: child_close, inferior_ptid=%d\n",
+ PIDGET (inferior_ptid)));
+}
+
+struct target_ops child_ops;
+
+static void
+init_child_ops (void)
+{
+ child_ops.to_shortname = "child";
+ child_ops.to_longname = "Win32 child process";
+ child_ops.to_doc = "Win32 child process (started by the \"run\" command).";
+ child_ops.to_open = child_open;
+ child_ops.to_close = child_close;
+ child_ops.to_attach = child_attach;
+ child_ops.to_detach = child_detach;
+ child_ops.to_resume = child_resume;
+ child_ops.to_wait = child_wait;
+ child_ops.to_fetch_registers = child_fetch_inferior_registers;
+ child_ops.to_store_registers = child_store_inferior_registers;
+ child_ops.to_prepare_to_store = child_prepare_to_store;
+ child_ops.to_xfer_memory = child_xfer_memory;
+ child_ops.to_files_info = child_files_info;
+ child_ops.to_insert_breakpoint = memory_insert_breakpoint;
+ child_ops.to_remove_breakpoint = memory_remove_breakpoint;
+ child_ops.to_terminal_init = terminal_init_inferior;
+ child_ops.to_terminal_inferior = terminal_inferior;
+ child_ops.to_terminal_ours_for_output = terminal_ours_for_output;
+ child_ops.to_terminal_ours = terminal_ours;
+ child_ops.to_terminal_info = child_terminal_info;
+ child_ops.to_kill = child_kill_inferior;
+ child_ops.to_load = 0;
+ child_ops.to_lookup_symbol = 0;
+ child_ops.to_create_inferior = child_create_inferior;
+ child_ops.to_mourn_inferior = child_mourn_inferior;
+ child_ops.to_can_run = child_can_run;
+ child_ops.to_notice_signals = 0;
+ child_ops.to_thread_alive = win32_child_thread_alive;
+ child_ops.to_pid_to_str = cygwin_pid_to_str;
+ child_ops.to_stop = child_stop;
+ child_ops.to_stratum = process_stratum;
+ child_ops.DONT_USE = 0;
+ child_ops.to_has_all_memory = 1;
+ child_ops.to_has_memory = 1;
+ child_ops.to_has_stack = 1;
+ child_ops.to_has_registers = 1;
+ child_ops.to_has_execution = 1;
+ child_ops.to_sections = 0;
+ child_ops.to_sections_end = 0;
+ child_ops.to_magic = OPS_MAGIC;
+}
void
-_initialize_inftarg ()
+_initialize_inftarg (void)
{
struct cmd_list_element *c;
- 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_show_from_set
- (add_set_cmd ("debugexec", class_support, var_boolean,
- (char *) &debug_exec,
- "Set whether to display execution in child process.",
- &setlist),
- &showlist);
-
- add_show_from_set
- (add_set_cmd ("debugevents", class_support, var_boolean,
- (char *) &debug_events,
- "Set whether to display kernel events in child process.",
- &setlist),
- &showlist);
-
- add_show_from_set
- (add_set_cmd ("debugmemory", class_support, var_boolean,
- (char *) &debug_memory,
- "Set whether to display memory accesses in child process.",
- &setlist),
- &showlist);
-
- add_show_from_set
- (add_set_cmd ("debugexceptions", class_support, var_boolean,
- (char *) &debug_exceptions,
- "Set whether to display kernel exceptions in child process.",
- &setlist),
- &showlist);
+ init_child_ops ();
+
+ c = add_com ("dll-symbols", class_files, dll_symbol_command,
+ "Load dll library symbols from FILE.");
+ c->completer = filename_completer;
+
+ auto_solib_add = 1;
+ add_com_alias ("sharedlibrary", "dll-symbols", class_alias, 1);
+
+ 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_show_from_set (add_set_cmd ("debugexec", class_support, var_boolean,
+ (char *) &debug_exec,
+ "Set whether to display execution in child process.",
+ &setlist),
+ &showlist);
+
+ add_show_from_set (add_set_cmd ("debugevents", class_support, var_boolean,
+ (char *) &debug_events,
+ "Set whether to display kernel events in child process.",
+ &setlist),
+ &showlist);
+
+ add_show_from_set (add_set_cmd ("debugmemory", class_support, var_boolean,
+ (char *) &debug_memory,
+ "Set whether to display memory accesses in child process.",
+ &setlist),
+ &showlist);
+
+ add_show_from_set (add_set_cmd ("debugexceptions", class_support, var_boolean,
+ (char *) &debug_exceptions,
+ "Set whether to display kernel exceptions in child process.",
+ &setlist),
+ &showlist);
+
+ add_info ("dll", info_dll_command, "Status of loaded DLLs.");
+ add_info_alias ("sharedlibrary", "dll", 1);
add_target (&child_ops);
}
+
+/* Determine if the thread referenced by "pid" is alive
+ by "polling" it. If WaitForSingleObject returns WAIT_OBJECT_0
+ it means that the pid has died. Otherwise it is assumed to be alive. */
+static int
+win32_child_thread_alive (ptid_t ptid)
+{
+ int pid = PIDGET (ptid);
+
+ return WaitForSingleObject (thread_rec (pid, FALSE)->h, 0) == WAIT_OBJECT_0 ?
+ FALSE : TRUE;
+}
+
+/* Convert pid to printable format. */
+char *
+cygwin_pid_to_str (ptid_t ptid)
+{
+ static char buf[80];
+ int pid = PIDGET (ptid);
+
+ if ((DWORD) pid == current_event.dwProcessId)
+ sprintf (buf, "process %d", pid);
+ else
+ sprintf (buf, "thread %ld.0x%x", current_event.dwProcessId, pid);
+ return buf;
+}
+
+static int
+core_dll_symbols_add (char *dll_name, DWORD base_addr)
+{
+ struct objfile *objfile;
+ char *objfile_basename;
+ const char *dll_basename;
+
+ if (!(dll_basename = strrchr (dll_name, '/')))
+ dll_basename = dll_name;
+ else
+ dll_basename++;
+
+ ALL_OBJFILES (objfile)
+ {
+ objfile_basename = strrchr (objfile->name, '/');
+
+ if (objfile_basename &&
+ strcmp (dll_basename, objfile_basename + 1) == 0)
+ {
+ printf_unfiltered ("%08lx:%s (symbols previously loaded)\n",
+ base_addr, dll_name);
+ goto out;
+ }
+ }
+
+ register_loaded_dll (dll_name, base_addr + 0x1000);
+ solib_symbols_add (dll_name, 0, (CORE_ADDR) base_addr + 0x1000);
+
+out:
+ return 1;
+}
+
+typedef struct
+{
+ struct target_ops *target;
+ bfd_vma addr;
+}
+map_code_section_args;
+
+static void
+map_single_dll_code_section (bfd * abfd, asection * sect, void *obj)
+{
+ int old;
+ int update_coreops;
+ struct section_table *new_target_sect_ptr;
+
+ map_code_section_args *args = (map_code_section_args *) obj;
+ struct target_ops *target = args->target;
+ if (sect->flags & SEC_CODE)
+ {
+ update_coreops = core_ops.to_sections == target->to_sections;
+
+ if (target->to_sections)
+ {
+ old = target->to_sections_end - target->to_sections;
+ target->to_sections = (struct section_table *)
+ xrealloc ((char *) target->to_sections,
+ (sizeof (struct section_table)) * (1 + old));
+ }
+ else
+ {
+ old = 0;
+ target->to_sections = (struct section_table *)
+ xmalloc ((sizeof (struct section_table)));
+ }
+ target->to_sections_end = target->to_sections + (1 + old);
+
+ /* Update the to_sections field in the core_ops structure
+ if needed. */
+ if (update_coreops)
+ {
+ core_ops.to_sections = target->to_sections;
+ core_ops.to_sections_end = target->to_sections_end;
+ }
+ new_target_sect_ptr = target->to_sections + old;
+ new_target_sect_ptr->addr = args->addr + bfd_section_vma (abfd, sect);
+ new_target_sect_ptr->endaddr = args->addr + bfd_section_vma (abfd, sect) +
+ bfd_section_size (abfd, sect);;
+ new_target_sect_ptr->the_bfd_section = sect;
+ new_target_sect_ptr->bfd = abfd;
+ }
+}
+
+static int
+dll_code_sections_add (const char *dll_name, int base_addr, struct target_ops *target)
+{
+ bfd *dll_bfd;
+ map_code_section_args map_args;
+ asection *lowest_sect;
+ char *name;
+ if (dll_name == NULL || target == NULL)
+ return 0;
+ name = xstrdup (dll_name);
+ dll_bfd = bfd_openr (name, "pei-i386");
+ if (dll_bfd == NULL)
+ return 0;
+
+ if (bfd_check_format (dll_bfd, bfd_object))
+ {
+ lowest_sect = bfd_get_section_by_name (dll_bfd, ".text");
+ if (lowest_sect == NULL)
+ return 0;
+ map_args.target = target;
+ map_args.addr = base_addr - bfd_section_vma (dll_bfd, lowest_sect);
+
+ bfd_map_over_sections (dll_bfd, &map_single_dll_code_section, (void *) (&map_args));
+ }
+
+ return 1;
+}
+
+static void
+core_section_load_dll_symbols (bfd * abfd, asection * sect, void *obj)
+{
+ struct target_ops *target = (struct target_ops *) obj;
+
+ DWORD base_addr;
+
+ int dll_name_size;
+ char *dll_name = NULL;
+ char *buf = NULL;
+ struct win32_pstatus *pstatus;
+ char *p;
+
+ if (strncmp (sect->name, ".module", 7))
+ return;
+
+ buf = (char *) xmalloc (sect->_raw_size + 1);
+ if (!buf)
+ {
+ printf_unfiltered ("memory allocation failed for %s\n", sect->name);
+ goto out;
+ }
+ if (!bfd_get_section_contents (abfd, sect, buf, 0, sect->_raw_size))
+ goto out;
+
+ pstatus = (struct win32_pstatus *) buf;
+
+ memmove (&base_addr, &(pstatus->data.module_info.base_address), sizeof (base_addr));
+ dll_name_size = pstatus->data.module_info.module_name_size;
+ if (offsetof (struct win32_pstatus, data.module_info.module_name) + dll_name_size > sect->_raw_size)
+ goto out;
+
+ dll_name = (char *) xmalloc (dll_name_size + 1);
+ if (!dll_name)
+ {
+ printf_unfiltered ("memory allocation failed for %s\n", sect->name);
+ goto out;
+ }
+ strncpy (dll_name, pstatus->data.module_info.module_name, dll_name_size);
+
+ while ((p = strchr (dll_name, '\\')))
+ *p = '/';
+
+ if (!core_dll_symbols_add (dll_name, (DWORD) base_addr))
+ printf_unfiltered ("%s: Failed to load dll symbols.\n", dll_name);
+
+ if (!dll_code_sections_add (dll_name, (DWORD) base_addr + 0x1000, target))
+ printf_unfiltered ("%s: Failed to map dll code sections.\n", dll_name);
+
+out:
+ if (buf)
+ xfree (buf);
+ if (dll_name)
+ xfree (dll_name);
+ return;
+}
+
+void
+child_solib_add (char *filename ATTRIBUTE_UNUSED, int from_tty, struct target_ops *target)
+{
+ if (core_bfd)
+ {
+ child_clear_solibs ();
+ bfd_map_over_sections (core_bfd, &core_section_load_dll_symbols, target);
+ }
+ else
+ {
+ if (solib_end && solib_end->name)
+ solib_symbols_add (solib_end->name, from_tty, solib_end->load_addr);
+ }
+}
+
+static void
+fetch_elf_core_registers (char *core_reg_sect,
+ unsigned core_reg_size,
+ int which,
+ CORE_ADDR reg_addr)
+{
+ int r;
+ if (core_reg_size < sizeof (CONTEXT))
+ {
+ error ("Core file register section too small (%u bytes).", core_reg_size);
+ return;
+ }
+ for (r = 0; r < NUM_REGS; r++)
+ supply_register (r, core_reg_sect + mappings[r]);
+}
+
+static struct core_fns win32_elf_core_fns =
+{
+ bfd_target_elf_flavour,
+ default_check_format,
+ default_core_sniffer,
+ fetch_elf_core_registers,
+ NULL
+};
+
+void
+_initialize_core_win32 (void)
+{
+ add_core_fns (&win32_elf_core_fns);
+}
projects / deliverable / binutils-gdb.git / blobdiff