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* external.cc (cygwin_internal): Initialize various internal settings if 

required to allow use of some things from user loaded DLL.
(CW_STRACE_ON): Add new feature.
(CW_CYGWIN_PID_TO_WINPID): Ditto.
* pinfo.cc (set_myself): Call "strace.hello" to initiate possible strace
session.
(pinfo::init): Guard against dereferencing uninitialized myself.
* sigproc.cc (wait_sig): Call strace.hello() when __SIGTRACE "signal" received.
* strace.cc (strace::hello): New method.
* wincap.cc (wincapc::init): Avoid initializing if already initialized.
* wincap.h (wincapc::wincapc): New method.
* include/sys/cygwin.h: Add new CW_ enums.  Kludge typedefs of {g,u}id_t if
required.
* strace.h (strace::hello): Declare new method.
This commit is contained in:
Christopher Faylor 2002-01-29 02:02:03 +00:00
parent a489b37643
commit 494a66d9c5
9 changed files with 94 additions and 25 deletions
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18
winsup/cygwin/ChangeLog
View File

@ -1,3 +1,21 @@
2002-01-28 Christopher Faylor <cgf@redhat.com>
* external.cc (cygwin_internal): Initialize various internal settings
if required to allow use of some things from user loaded DLL.
(CW_STRACE_ON): Add new feature.
(CW_CYGWIN_PID_TO_WINPID): Ditto.
* pinfo.cc (set_myself): Call "strace.hello" to initiate possible
strace session.
(pinfo::init): Guard against dereferencing uninitialized myself.
* sigproc.cc (wait_sig): Call strace.hello() when __SIGTRACE "signal"
received.
* strace.cc (strace::hello): New method.
* wincap.cc (wincapc::init): Avoid initializing if already initialized.
* wincap.h (wincapc::wincapc): New method.
* include/sys/cygwin.h: Add new CW_ enums. Kludge typedefs of
{g,u}id_t if required.
* strace.h (strace::hello): Declare new method.
2002-01-28 Earnie Boyd <earnie@users.sf.net>
* include/sys/strace.h (_STRACE_ON): Define.

32
winsup/cygwin/external.cc
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@ -26,6 +26,8 @@ details. */
#include "path.h"
#include "dtable.h"
#include "cygheap.h"
#include "wincap.h"
#include "heap.h"
static external_pinfo *
fillout_pinfo (pid_t pid, int winpid)
@ -121,6 +123,16 @@ cygwin_internal (cygwin_getinfo_types t, ...)
{
va_list arg;
va_start (arg, t);
if (t != CW_USER_DATA)
{
wincap.init ();
if (!myself)
{
memory_init ();
malloc_init ();
set_myself (1);
}
}
switch (t)
{
@ -194,6 +206,26 @@ cygwin_internal (cygwin_getinfo_types t, ...)
# undef cr
}
case CW_STRACE_ON:
{
pid_t pid = va_arg (arg, pid_t);
pinfo p (pid);
if (p)
{
sig_send (p, __SIGSTRACE);
return 0;
}
else
{
set_errno (ESRCH);
return (DWORD) -1;
}
}
case CW_CYGWIN_PID_TO_WINPID:
{
pinfo p (va_arg (arg, pid_t));
return p ? p->dwProcessId : 0;
}
default:
return (DWORD) -1;
}

10
winsup/cygwin/include/sys/cygwin.h
View File

@ -66,7 +66,10 @@ typedef enum
CW_INIT_EXCEPTIONS,
CW_GET_CYGDRIVE_INFO,
CW_SET_CYGWIN_REGISTRY_NAME,
CW_GET_CYGWIN_REGISTRY_NAME
CW_GET_CYGWIN_REGISTRY_NAME,
CW_STRACE_ON,
CW_STRACE_OFF,
CW_CYGWIN_PID_TO_WINPID
} cygwin_getinfo_types;
#define CW_NEXTPID 0x80000000 // or with pid to get next one
@ -205,6 +208,11 @@ extern int cygwin_attach_handle_to_fd (char *, int, HANDLE, mode_t, DWORD);
#define TTY_CONSOLE 0x40000000
#ifndef _SYS_TYPES_H
typedef short uid_t;
typedef short gid_t;
#endif
struct external_pinfo
{
pid_t pid;

1
winsup/cygwin/include/sys/strace.h
View File

@ -44,6 +44,7 @@ public:
int lmicrosec;
int execing;
strace() : version(1) {}
void hello ();
void prntf (unsigned, const char *func, const char *, ...) /*__attribute__ ((regparm(3)))*/;
void vprntf (unsigned, const char *func, const char *, va_list ap) /*__attribute__ ((regparm(3)))*/;
void wm (int message, int word, int lon) __attribute__ ((regparm(3)));

27
winsup/cygwin/pinfo.cc
View File

@ -62,33 +62,14 @@ set_myself (pid_t pid, HANDLE h)
myself->process_state |= PID_IN_USE;
myself->start_time = time (NULL); /* Register our starting time. */
char buf[30];
__small_sprintf (buf, "cYg%8x %x", _STRACE_INTERFACE_ACTIVATE_ADDR,
&strace.active);
OutputDebugString (buf);
(void) GetModuleFileName (NULL, myself->progname,
sizeof(myself->progname));
if (strace.active)
{
strace.prntf (1, NULL, "**********************************************");
strace.prntf (1, NULL, "Program name: %s (%d)", myself->progname, myself->pid);
strace.prntf (1, NULL, "App version: %d.%d, api: %d.%d",
user_data->dll_major, user_data->dll_minor,
user_data->api_major, user_data->api_minor);
strace.prntf (1, NULL, "DLL version: %d.%d, api: %d.%d",
cygwin_version.dll_major, cygwin_version.dll_minor,
cygwin_version.api_major, cygwin_version.api_minor);
strace.prntf (1, NULL, "DLL build: %s", cygwin_version.dll_build_date);
strace.prntf (1, NULL, "OS version: Windows %s", wincap.osname ());
strace.prntf (1, NULL, "**********************************************");
}
strace.hello ();
return;
}
/* Initialize the process table entry for the current task.
This is not called for fork'd tasks, only exec'd ones. */
This is not called for forked tasks, only execed ones. */
void __stdcall
pinfo_init (char **envp, int envc)
{
@ -136,7 +117,7 @@ _pinfo::exit (UINT n, bool norecord)
void
pinfo::init (pid_t n, DWORD flag, HANDLE in_h)
{
if (n == myself->pid)
if (myself && n == myself->pid)
{
procinfo = myself;
destroy = 0;
@ -276,7 +257,7 @@ a cygwin pid.</para>
extern "C" pid_t
cygwin_winpid_to_pid (int winpid)
{
pinfo p (winpid);
pinfo p (cygwin_pid (winpid));
if (p)
return p->pid;

2
winsup/cygwin/sigproc.cc
View File

@ -1184,7 +1184,7 @@ wait_sig (VOID *)
/* Internal signal to force a flush of strace data to disk. */
case __SIGSTRACE:
// proc_strace (); // Dump cached strace.prntf stuff.
strace.hello ();
break;
/* A normal UNIX signal */

25
winsup/cygwin/strace.cc
View File

@ -17,6 +17,8 @@ details. */
#include "sync.h"
#include "sigproc.h"
#include "pinfo.h"
#include "perprocess.h"
#include "cygwin_version.h"
#define PROTECT(x) x[sizeof(x)-1] = 0
#define CHECK(x) if (x[sizeof(x)-1] != 0) { small_printf("array bound exceeded %d\n", __LINE__); ExitProcess(1); }
@ -28,6 +30,29 @@ class NO_COPY strace strace;
#ifndef NOSTRACE
void
strace::hello()
{
char buf[30];
__small_sprintf (buf, "cYg%8x %x", _STRACE_INTERFACE_ACTIVATE_ADDR, &active);
OutputDebugString (buf);
if (active)
{
prntf (1, NULL, "**********************************************");
prntf (1, NULL, "Program name: %s (%d)", myself->progname, myself->pid);
prntf (1, NULL, "App version: %d.%d, api: %d.%d",
user_data->dll_major, user_data->dll_minor,
user_data->api_major, user_data->api_minor);
prntf (1, NULL, "DLL version: %d.%d, api: %d.%d",
cygwin_version.dll_major, cygwin_version.dll_minor,
cygwin_version.api_major, cygwin_version.api_minor);
prntf (1, NULL, "DLL build: %s", cygwin_version.dll_build_date);
prntf (1, NULL, "OS version: Windows %s", wincap.osname ());
prntf (1, NULL, "**********************************************");
}
}
int
strace::microseconds()
{

3
winsup/cygwin/wincap.cc
View File

@ -414,6 +414,9 @@ wincapc::init ()
{
const char *os;
if (caps)
return; // already initialized
memset (&version, 0, sizeof version);
version.dwOSVersionInfoSize = sizeof version;
GetVersionEx (&version);

1
winsup/cygwin/wincap.h
View File

@ -55,6 +55,7 @@ class wincapc
void *caps;
public:
wincapc (): caps (NULL) {}
void init ();
void set_chunksize (DWORD nchunksize);