4889f730c1
* dcrt0.cc (initial_env): Reduce size of local path buffers to
PATH_MAX. Allocate debugger_command from process heap.
(init_windows_system_directory): Very early initialize new global
variable global_progname.
* dll_init.cc (dll_list::alloc): Make path buffer static. Explain why.
(dll_list::populate_deps): Use tmp_pathbuf for local path buffer.
* exceptions.cc (debugger_command): Convert to PWCHAR.
(error_start_init): Allocate debugger_command and fill with wide char
strings. Only allocate if NULL.
(try_to_debug): Just check if debugger_command is a NULL pointer to
return. Drop conversion from char to WCHAR and drop local variable
dbg_cmd.
* globals.cc (global_progname): New global variable to store Windows
application path.
* pinfo.cc (pinfo_basic::pinfo_basic): Just copy progname over from
global_progname.
(pinfo::status_exit): Let path_conv create the POSIX path to
avoid local buffer.
* pseudo_reloc.cc (__report_error): Utilize global_progname, drop local
buffer.
* smallprint.cc (__small_vsprintf): Just utilize global_progname for
%P format specifier.
(__small_vswprintf): Ditto.
* strace.cc (PROTECT): Change to reflect x being a pointer. Reformat.
(CHECK): Ditto. Reformat.
(strace::activate): Utilize global_progname, drop local buffer.
Fix formatting.
(strace::vsprntf): Reduce size of local progname buffer to NAME_MAX.
Copy and, if necessary, convert only the last path component to
progname.
(strace_buf_guard): New muto.
(buf): New static pointer.
(strace::vprntf): Use buf under strace_buf_guard lock only. Allocate
buffer space for buf on Windows heap.
* wow64.cc (wow64_respawn_process): Utilize global_progname, drop
local path buffer.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
491 lines
13 KiB
C++
491 lines
13 KiB
C++
/* strace.cc: system/windows tracing
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Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
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2007, 2008, 2009, 2010, 2011, 2012 Red Hat, Inc.
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This file is part of Cygwin.
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This software is a copyrighted work licensed under the terms of the
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Cygwin license. Please consult the file "CYGWIN_LICENSE" for
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details. */
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#include "winsup.h"
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#include <ctype.h>
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#include "cygerrno.h"
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#include "pinfo.h"
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#include "perprocess.h"
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#include "cygwin_version.h"
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#include "cygthread.h"
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#include "path.h"
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#include "fhandler.h"
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#include "dtable.h"
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#include "cygheap.h"
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#include "child_info.h"
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#include "sync.h"
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#define PROTECT(x) {x[NT_MAX_PATH - 1] = '\0';}
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#define CHECK(x) if (x[NT_MAX_PATH - 1] != '\0') \
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{ small_printf ("array bound exceeded %d\n", __LINE__); \
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ExitProcess (1); \
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}
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class strace NO_COPY strace;
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#ifndef NOSTRACE
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void
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strace::activate (bool isfork)
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{
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if (!_active && being_debugged ())
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{
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char buf[30];
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__small_sprintf (buf, "cYg%8x %lx %d",
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_STRACE_INTERFACE_ACTIVATE_ADDR, &_active, isfork);
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OutputDebugString (buf);
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if (_active)
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{
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char pidbuf[80];
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PWCHAR progname;
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if (myself)
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{
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__small_sprintf (pidbuf, "(pid %d, ppid %d, windows pid %u)",
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myself->pid, myself->ppid ?: 1,
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GetCurrentProcessId ());
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progname = myself->progname;
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}
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else
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{
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__small_sprintf (pidbuf, "(windows pid %u)",
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GetCurrentProcessId ());
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progname = global_progname;
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}
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prntf (1, NULL, "**********************************************");
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prntf (1, NULL, "Program name: %W %s", progname, pidbuf);
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prntf (1, NULL, "OS version: Windows %s", wincap.osname ());
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prntf (1, NULL, "**********************************************");
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}
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}
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}
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void
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strace::dll_info ()
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{
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if (active ())
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{
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prntf (1, NULL, "App version: %d.%d, api: %d.%d",
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user_data->dll_major, user_data->dll_minor,
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user_data->api_major, user_data->api_minor);
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prntf (1, NULL, "DLL version: %d.%d, api: %d.%d",
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cygwin_version.dll_major, cygwin_version.dll_minor,
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cygwin_version.api_major, cygwin_version.api_minor);
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prntf (1, NULL, "DLL build: %s", cygwin_version.dll_build_date);
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}
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}
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int
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strace::microseconds ()
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{
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static hires_ns now;
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return (int) now.usecs ();
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}
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static int __stdcall
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getfunc (char *in_dst, const char *func)
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{
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const char *p;
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const char *pe;
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char *dst = in_dst;
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for (p = func; (pe = strchr (p, '(')); p = pe + 1)
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if (isalnum ((int)pe[-1]) || pe[-1] == '_')
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break;
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else if (isspace ((int)pe[-1]))
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{
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pe--;
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break;
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}
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if (!pe)
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pe = strchr (func, '\0');
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for (p = pe; p > func; p--)
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if (p != pe && *p == ' ')
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{
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p++;
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break;
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}
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if (*p == '*')
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p++;
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while (p < pe)
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*dst++ = *p++;
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*dst++ = ':';
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*dst++ = ' ';
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*dst = '\0';
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return dst - in_dst;
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}
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static char *
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mypid (char *buf)
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{
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if (myself && myself->pid)
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__small_sprintf (buf, "%d", myself->pid);
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else
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__small_sprintf (buf, "(%d)", GetCurrentProcessId ());
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return buf;
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}
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/* sprintf analog for use by output routines. */
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int
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strace::vsprntf (char *buf, const char *func, const char *infmt, va_list ap)
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{
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int count;
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char fmt[80];
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static NO_COPY bool nonewline = false;
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DWORD err = GetLastError ();
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const char *tn = cygthread::name ();
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int microsec = microseconds ();
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lmicrosec = microsec;
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__small_sprintf (fmt, "%7d [%s] %s ", microsec, tn, "%W %s%s");
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SetLastError (err);
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if (nonewline)
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count = 0;
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else
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{
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PWCHAR pn = NULL;
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WCHAR progname[NAME_MAX];
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if (cygwin_finished_initializing && __progname)
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{
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char *p = strrchr (__progname, '/');
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if (p)
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++p;
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else
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p = __progname;
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char *pe = strrchr (p, '.');
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if (!pe || !ascii_strcasematch (pe, ".exe"))
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pe = strrchr (p, '\0');
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sys_mbstowcs (pn = progname, NAME_MAX, p, pe - p);
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}
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else
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{
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PWCHAR p = wcsrchr (global_progname, L'\\');
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++p;
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PWCHAR pe = wcsrchr (p, '.');
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if (!pe || wcscasecmp (pe, L".exe"))
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pe = wcsrchr (p, L'\0');
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pe = wcpncpy (progname, p, pe - p);
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*pe = L'\0';
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pn = progname;
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}
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char tmpbuf[20];
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count = __small_sprintf (buf, fmt, pn, mypid (tmpbuf),
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execing ? "!" : "");
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if (func)
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count += getfunc (buf + count, func);
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}
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count += __small_vsprintf (buf + count, infmt, ap);
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char *p;
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for (p = buf + count; p > buf; p--)
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switch (p[-1])
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{
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case '\n':
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p[-1] = '\0';
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break;
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case '\b':
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*--p = '\0';
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nonewline = true;
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goto done;
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default:
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goto addnl;
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}
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addnl:
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*p++ = '\n';
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*p = '\0';
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nonewline = false;
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done:
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return p - buf;
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}
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/* Write to strace file or strace queue. */
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void
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strace::write (unsigned category, const char *buf, int count)
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{
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# define PREFIX (3 + 8 + 1 + 8 + 1)
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char outbuf[PREFIX + 1 + count + 1];
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# define outstuff (outbuf + 12)
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__small_sprintf (outstuff, "%x %s", category, buf);
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__small_sprintf (outbuf, "cYg%08x", strlen (outstuff) + 1);
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outstuff[-1] = ' ';
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OutputDebugString (outbuf);
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#undef outstuff
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#undef PREFIX
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}
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void
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strace::write_childpid (pid_t pid)
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{
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char buf[30];
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if (!attached () || !being_debugged ())
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return;
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__small_sprintf (buf, "cYg%8x %x", _STRACE_CHILD_PID, pid);
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OutputDebugString (buf);
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}
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/* Printf function used when tracing system calls.
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Warning: DO NOT SET ERRNO HERE! */
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static NO_COPY muto strace_buf_guard;
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static NO_COPY char *buf;
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void
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strace::vprntf (unsigned category, const char *func, const char *fmt, va_list ap)
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{
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DWORD err = GetLastError ();
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int len;
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strace_buf_guard.init ("smallprint_buf")->acquire ();
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/* Creating buffer on Windows process heap to drop stack pressure and
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keeping our .bss small. */
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if (!buf)
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buf = (char *) HeapAlloc (GetProcessHeap (), 0, NT_MAX_PATH);
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if (!buf)
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return;
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PROTECT (buf);
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SetLastError (err);
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len = vsprntf (buf, func, fmt, ap);
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CHECK (buf);
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if (category & _STRACE_SYSTEM)
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{
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DWORD done;
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WriteFile (GetStdHandle (STD_ERROR_HANDLE), buf, len, &done, 0);
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FlushFileBuffers (GetStdHandle (STD_ERROR_HANDLE));
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/* Make sure that the message shows up on the screen, too, since this is
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a serious error. */
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if (GetFileType (GetStdHandle (STD_ERROR_HANDLE)) != FILE_TYPE_CHAR)
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{
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HANDLE h = CreateFile ("CONOUT$", GENERIC_READ | GENERIC_WRITE,
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FILE_SHARE_READ | FILE_SHARE_WRITE,
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&sec_none, OPEN_EXISTING, 0, 0);
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if (h != INVALID_HANDLE_VALUE)
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{
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WriteFile (h, buf, len, &done, 0);
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CloseHandle (h);
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}
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}
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}
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#ifndef NOSTRACE
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if (active ())
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write (category, buf, len);
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#endif
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strace_buf_guard.release ();
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SetLastError (err);
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}
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void
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strace::prntf (unsigned category, const char *func, const char *fmt, ...)
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{
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va_list ap;
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va_start (ap, fmt);
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vprntf (category, func, fmt, ap);
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va_end (ap);
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}
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extern "C" void
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strace_printf (unsigned category, const char *func, const char *fmt, ...)
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{
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va_list ap;
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if ((category & _STRACE_SYSTEM) || strace.active ())
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{
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va_start (ap, fmt);
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strace.vprntf (category, func, fmt, ap);
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va_end (ap);
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}
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}
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static NO_COPY struct tab
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{
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int v;
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const char *n;
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}
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ta[] =
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{
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{ WM_NULL, "WM_NULL" },
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{ WM_CREATE, "WM_CREATE" },
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{ WM_DESTROY, "WM_DESTROY" },
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{ WM_MOVE, "WM_MOVE" },
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{ WM_SIZE, "WM_SIZE" },
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{ WM_ACTIVATE, "WM_ACTIVATE" },
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{ WM_SETFOCUS, "WM_SETFOCUS" },
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{ WM_KILLFOCUS, "WM_KILLFOCUS" },
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{ WM_ENABLE, "WM_ENABLE" },
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{ WM_SETREDRAW, "WM_SETREDRAW" },
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{ WM_SETTEXT, "WM_SETTEXT" },
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{ WM_GETTEXT, "WM_GETTEXT" },
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{ WM_GETTEXTLENGTH, "WM_GETTEXTLENGTH" },
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{ WM_PAINT, "WM_PAINT" },
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{ WM_CLOSE, "WM_CLOSE" },
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{ WM_QUERYENDSESSION, "WM_QUERYENDSESSION" },
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{ WM_QUIT, "WM_QUIT" },
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{ WM_QUERYOPEN, "WM_QUERYOPEN" },
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{ WM_ERASEBKGND, "WM_ERASEBKGND" },
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{ WM_SYSCOLORCHANGE, "WM_SYSCOLORCHANGE" },
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{ WM_ENDSESSION, "WM_ENDSESSION" },
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{ WM_SHOWWINDOW, "WM_SHOWWINDOW" },
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{ WM_WININICHANGE, "WM_WININICHANGE" },
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{ WM_DEVMODECHANGE, "WM_DEVMODECHANGE" },
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{ WM_ACTIVATEAPP, "WM_ACTIVATEAPP" },
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{ WM_FONTCHANGE, "WM_FONTCHANGE" },
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{ WM_TIMECHANGE, "WM_TIMECHANGE" },
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{ WM_CANCELMODE, "WM_CANCELMODE" },
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{ WM_SETCURSOR, "WM_SETCURSOR" },
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{ WM_MOUSEACTIVATE, "WM_MOUSEACTIVATE" },
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{ WM_CHILDACTIVATE, "WM_CHILDACTIVATE" },
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{ WM_QUEUESYNC, "WM_QUEUESYNC" },
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{ WM_GETMINMAXINFO, "WM_GETMINMAXINFO" },
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{ WM_PAINTICON, "WM_PAINTICON" },
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{ WM_ICONERASEBKGND, "WM_ICONERASEBKGND" },
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{ WM_NEXTDLGCTL, "WM_NEXTDLGCTL" },
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{ WM_SPOOLERSTATUS, "WM_SPOOLERSTATUS" },
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{ WM_DRAWITEM, "WM_DRAWITEM" },
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{ WM_MEASUREITEM, "WM_MEASUREITEM" },
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{ WM_DELETEITEM, "WM_DELETEITEM" },
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{ WM_VKEYTOITEM, "WM_VKEYTOITEM" },
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{ WM_CHARTOITEM, "WM_CHARTOITEM" },
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{ WM_SETFONT, "WM_SETFONT" },
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{ WM_GETFONT, "WM_GETFONT" },
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{ WM_SETHOTKEY, "WM_SETHOTKEY" },
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{ WM_GETHOTKEY, "WM_GETHOTKEY" },
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{ WM_QUERYDRAGICON, "WM_QUERYDRAGICON" },
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{ WM_COMPAREITEM, "WM_COMPAREITEM" },
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{ WM_COMPACTING, "WM_COMPACTING" },
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{ WM_WINDOWPOSCHANGING, "WM_WINDOWPOSCHANGING" },
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{ WM_WINDOWPOSCHANGED, "WM_WINDOWPOSCHANGED" },
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{ WM_POWER, "WM_POWER" },
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{ WM_COPYDATA, "WM_COPYDATA" },
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{ WM_CANCELJOURNAL, "WM_CANCELJOURNAL" },
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{ WM_NCCREATE, "WM_NCCREATE" },
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{ WM_NCDESTROY, "WM_NCDESTROY" },
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{ WM_NCCALCSIZE, "WM_NCCALCSIZE" },
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{ WM_NCHITTEST, "WM_NCHITTEST" },
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{ WM_NCPAINT, "WM_NCPAINT" },
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{ WM_NCACTIVATE, "WM_NCACTIVATE" },
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{ WM_GETDLGCODE, "WM_GETDLGCODE" },
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{ WM_NCMOUSEMOVE, "WM_NCMOUSEMOVE" },
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{ WM_NCLBUTTONDOWN, "WM_NCLBUTTONDOWN" },
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{ WM_NCLBUTTONUP, "WM_NCLBUTTONUP" },
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{ WM_NCLBUTTONDBLCLK, "WM_NCLBUTTONDBLCLK" },
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{ WM_NCRBUTTONDOWN, "WM_NCRBUTTONDOWN" },
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{ WM_NCRBUTTONUP, "WM_NCRBUTTONUP" },
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{ WM_NCRBUTTONDBLCLK, "WM_NCRBUTTONDBLCLK" },
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{ WM_NCMBUTTONDOWN, "WM_NCMBUTTONDOWN" },
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{ WM_NCMBUTTONUP, "WM_NCMBUTTONUP" },
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{ WM_NCMBUTTONDBLCLK, "WM_NCMBUTTONDBLCLK" },
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{ WM_KEYFIRST, "WM_KEYFIRST" },
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{ WM_KEYDOWN, "WM_KEYDOWN" },
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{ WM_KEYUP, "WM_KEYUP" },
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{ WM_CHAR, "WM_CHAR" },
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{ WM_DEADCHAR, "WM_DEADCHAR" },
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{ WM_SYSKEYDOWN, "WM_SYSKEYDOWN" },
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{ WM_SYSKEYUP, "WM_SYSKEYUP" },
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{ WM_SYSCHAR, "WM_SYSCHAR" },
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{ WM_SYSDEADCHAR, "WM_SYSDEADCHAR" },
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|
{ WM_KEYLAST, "WM_KEYLAST" },
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|
{ WM_INITDIALOG, "WM_INITDIALOG" },
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|
{ WM_COMMAND, "WM_COMMAND" },
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{ WM_SYSCOMMAND, "WM_SYSCOMMAND" },
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|
{ WM_TIMER, "WM_TIMER" },
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|
{ WM_HSCROLL, "WM_HSCROLL" },
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{ WM_VSCROLL, "WM_VSCROLL" },
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{ WM_INITMENU, "WM_INITMENU" },
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|
{ WM_INITMENUPOPUP, "WM_INITMENUPOPUP" },
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|
{ WM_MENUSELECT, "WM_MENUSELECT" },
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|
{ WM_MENUCHAR, "WM_MENUCHAR" },
|
|
{ WM_ENTERIDLE, "WM_ENTERIDLE" },
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|
{ WM_CTLCOLORMSGBOX, "WM_CTLCOLORMSGBOX" },
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|
{ WM_CTLCOLOREDIT, "WM_CTLCOLOREDIT" },
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|
{ WM_CTLCOLORLISTBOX, "WM_CTLCOLORLISTBOX" },
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|
{ WM_CTLCOLORBTN, "WM_CTLCOLORBTN" },
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|
{ WM_CTLCOLORDLG, "WM_CTLCOLORDLG" },
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|
{ WM_CTLCOLORSCROLLBAR, "WM_CTLCOLORSCROLLBAR" },
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|
{ WM_CTLCOLORSTATIC, "WM_CTLCOLORSTATIC" },
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|
{ WM_MOUSEFIRST, "WM_MOUSEFIRST" },
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|
{ WM_MOUSEMOVE, "WM_MOUSEMOVE" },
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|
{ WM_LBUTTONDOWN, "WM_LBUTTONDOWN" },
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|
{ WM_LBUTTONUP, "WM_LBUTTONUP" },
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|
{ WM_LBUTTONDBLCLK, "WM_LBUTTONDBLCLK" },
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|
{ WM_RBUTTONDOWN, "WM_RBUTTONDOWN" },
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|
{ WM_RBUTTONUP, "WM_RBUTTONUP" },
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|
{ WM_RBUTTONDBLCLK, "WM_RBUTTONDBLCLK" },
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|
{ WM_MBUTTONDOWN, "WM_MBUTTONDOWN" },
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|
{ WM_MBUTTONUP, "WM_MBUTTONUP" },
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|
{ WM_MBUTTONDBLCLK, "WM_MBUTTONDBLCLK" },
|
|
{ WM_MOUSELAST, "WM_MOUSELAST" },
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|
{ WM_PARENTNOTIFY, "WM_PARENTNOTIFY" },
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|
{ WM_ENTERMENULOOP, "WM_ENTERMENULOOP" },
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|
{ WM_EXITMENULOOP, "WM_EXITMENULOOP" },
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|
{ WM_MDICREATE, "WM_MDICREATE" },
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|
{ WM_MDIDESTROY, "WM_MDIDESTROY" },
|
|
{ WM_MDIACTIVATE, "WM_MDIACTIVATE" },
|
|
{ WM_MDIRESTORE, "WM_MDIRESTORE" },
|
|
{ WM_MDINEXT, "WM_MDINEXT" },
|
|
{ WM_MDIMAXIMIZE, "WM_MDIMAXIMIZE" },
|
|
{ WM_MDITILE, "WM_MDITILE" },
|
|
{ WM_MDICASCADE, "WM_MDICASCADE" },
|
|
{ WM_MDIICONARRANGE, "WM_MDIICONARRANGE" },
|
|
{ WM_MDIGETACTIVE, "WM_MDIGETACTIVE" },
|
|
{ WM_MDISETMENU, "WM_MDISETMENU" },
|
|
{ WM_DROPFILES, "WM_DROPFILES" },
|
|
{ WM_MDIREFRESHMENU, "WM_MDIREFRESHMENU" },
|
|
{ WM_CUT, "WM_CUT" },
|
|
{ WM_COPY, "WM_COPY" },
|
|
{ WM_PASTE, "WM_PASTE" },
|
|
{ WM_CLEAR, "WM_CLEAR" },
|
|
{ WM_UNDO, "WM_UNDO" },
|
|
{ WM_RENDERFORMAT, "WM_RENDERFORMAT" },
|
|
{ WM_RENDERALLFORMATS, "WM_RENDERALLFORMATS" },
|
|
{ WM_DESTROYCLIPBOARD, "WM_DESTROYCLIPBOARD" },
|
|
{ WM_DRAWCLIPBOARD, "WM_DRAWCLIPBOARD" },
|
|
{ WM_PAINTCLIPBOARD, "WM_PAINTCLIPBOARD" },
|
|
{ WM_VSCROLLCLIPBOARD, "WM_VSCROLLCLIPBOARD" },
|
|
{ WM_SIZECLIPBOARD, "WM_SIZECLIPBOARD" },
|
|
{ WM_ASKCBFORMATNAME, "WM_ASKCBFORMATNAME" },
|
|
{ WM_CHANGECBCHAIN, "WM_CHANGECBCHAIN" },
|
|
{ WM_HSCROLLCLIPBOARD, "WM_HSCROLLCLIPBOARD" },
|
|
{ WM_QUERYNEWPALETTE, "WM_QUERYNEWPALETTE" },
|
|
{ WM_PALETTEISCHANGING, "WM_PALETTEISCHANGING" },
|
|
{ WM_PALETTECHANGED, "WM_PALETTECHANGED" },
|
|
{ WM_HOTKEY, "WM_HOTKEY" },
|
|
{ WM_PENWINFIRST, "WM_PENWINFIRST" },
|
|
{ WM_PENWINLAST, "WM_PENWINLAST" },
|
|
{ WM_ASYNCIO, "ASYNCIO" },
|
|
{ 0, 0 }};
|
|
|
|
void
|
|
strace::wm (int message, int word, int lon)
|
|
{
|
|
if (active ())
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; ta[i].n; i++)
|
|
{
|
|
if (ta[i].v == message)
|
|
{
|
|
prntf (_STRACE_WM, NULL, "wndproc %d %s %d %d", message, ta[i].n, word, lon);
|
|
return;
|
|
}
|
|
}
|
|
prntf (_STRACE_WM, NULL, "wndproc %d unknown %d %d", message, word, lon);
|
|
}
|
|
}
|
|
#endif /*NOSTRACE*/
|