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* exceptions.cc (set_signal_mask): Redefine to not pass by address. Report

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calculated mask in debugging output.
* sigproc.h (set_signal_mask): Reflect above change in declaration.
* path.cc (mount_item::build_win32): Take path apart before feeding it to
fnmunge.  Throughout, change use of _reent_winsup()-> to _my_tls.locals.
instead.  Throughout, remove obsolete MT_SAFE/_CYG_THREAD_FAILSAFE
considerations.  Througout, add cygtls.h include.
* Makefile.in (DLL_OFILES): Add cygtls.o.  Add some more objects to the
-fomit-frame-pointer list.
* acconfig.h: Remove obsolete settings.
* config.h.in: Ditto.
* bsdlib.cc: Add cygtls.h include.
* configure.in: Remove --enable-extra-threadsafe-checking.
* configure: Regenerate.
* cygtls.h (_local_storage): New struct renamed from _winsup_t (sic).
(_threadinfo:local_clib): Add new field.
(_threadinfo::locals): Ditto.
(_threadinfo::init_thread): Accept second _reent * argument.
(_threadinfo::call): Define as regparm.
(CYGTLS_PADSIZE): Remove unnecessary slop.
(_getreent): Define as a macro.
* thread.h: Remove _CYG_THREAD_FAILSAFE and MT_SAFE stuff.
(_winsup_t): Move to cygtls.h.
(ResourceLocks::ResourceLocks): Eliminate empty constructor.
(MTinterface::reents): Eliminate.
(MTinterface::thread_self_key): Eliminate.
(MTinterface::MTinterface): Eliminate.
* dcrt0.cc: Include stdio.h for _impure_ptr initialization.
(do_global_ctors): Remove run_ctors_p (sic) considerations.  Don't call atexit
here.
(__main): Initialize destructors for user here.
(dll_crt0_1): Accept a dummy argument.  Don't call init_thread here.  Don't set
_impure_ptr here.  Call do_global_ctors after more things have been
initialized.
(_dll_crt0): Define zeros buffer as max of needed size of CYGTLS_PADSIZE so
that it can be used for two purposes while minimizing stack usage.  Initialize
_impure_ptr specifically, for speed.  Call dll_crt0_1 with buffer argument.
(cygwin_dll_init): Call dll_crt0_1 with dummy argument.
* dtable.cc (dtable::find_unused_handle): Remove call to AssertResourceOwner.
* exceptions.cc: Move _threadinfo stuff to new file.
* cygtls.cc: New file.
* gentls_offsets: Accommodate increasing complexity of cygtls.h.
* hires.h (hires_base::~hires_base): Remove.
* init.cc (dll_entry): Remove setting of reents.
* thread.cc: Remove syslog.h include.
(__getreent): Simplify to use _my_tls.
(_reent_winsup): Delete.
(AssertResourceOwner): Delete.
(MTinterface::Init): Remove setting of _clib and _winsup, with all that
entails.
(MTinterface::fixup_after_fork): Ditto.
(pthread::thread_init_wrapper): Ditto.  Also remove call to
set_tls_self_pointer.
(pthread::set_tls_self_pointer): Eliminate.
(pthread::get_tls_self_pointer): Just return _my_tls.tid;
(__reent_t::init_clib): Eliminate.
* tlsoffsets.h: Regenerate.
This commit is contained in:
Christopher Faylor
2003-12-23 16:26:31 +00:00
parent 1fb9256d7e
commit 29d52c8a27
35 changed files with 513 additions and 744 deletions
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117
winsup/cygwin/thread.h
View File

@ -22,106 +22,16 @@ details. */
#define WRITE_LOCK 1
#define READ_LOCK 2
extern "C"
{
#if defined (_CYG_THREAD_FAILSAFE) && defined (_MT_SAFE)
void AssertResourceOwner (int, int);
#else
#define AssertResourceOwner(i,ii)
#endif
}
#ifndef _MT_SAFE
#define SetResourceLock(i,n,c)
#define ReleaseResourceLock(i,n,c)
#else
#include <pthread.h>
#include <limits.h>
#include <errno.h>
#include <signal.h>
#include <pwd.h>
#include <grp.h>
#include <security.h>
#define _NOMNTENT_FUNCS
#include <mntent.h>
#include <errno.h>
extern "C"
{
struct _winsup_t
{
/*
Needed for the group functions
*/
struct __group16 _grp;
char *_namearray[2];
int _grp_pos;
/* console.cc */
unsigned _rarg;
/* dlfcn.cc */
int _dl_error;
char _dl_buffer[256];
/* passwd.cc */
struct passwd _res;
char _pass[_PASSWORD_LEN];
int _pw_pos;
/* path.cc */
struct mntent mntbuf;
int _iteration;
DWORD available_drives;
char mnt_type[80];
char mnt_opts[80];
char mnt_fsname[CYG_MAX_PATH];
char mnt_dir[CYG_MAX_PATH];
/* strerror */
char _strerror_buf[20];
/* sysloc.cc */
char *_process_ident;
int _process_logopt;
int _process_facility;
int _process_logmask;
/* times.cc */
char timezone_buf[20];
struct tm _localtime_buf;
/* uinfo.cc */
char _username[UNLEN + 1];
/* net.cc */
char *_ntoa_buf;
struct protoent *_protoent_buf;
struct servent *_servent_buf;
struct hostent *_hostent_buf;
};
struct __reent_t
{
struct _reent *_clib;
struct _winsup_t *_winsup;
void init_clib (_reent&);
};
_winsup_t *_reent_winsup ();
void SetResourceLock (int, int, const char *) __attribute__ ((regparm (3)));
void ReleaseResourceLock (int, int, const char *)
__attribute__ ((regparm (3)));
#ifdef _CYG_THREAD_FAILSAFE
void AssertResourceOwner (int, int);
#else
#define AssertResourceOwner(i,ii)
#endif
}
class fast_mutex
@ -173,16 +83,9 @@ class pinfo;
class ResourceLocks
{
public:
ResourceLocks ()
{
}
LPCRITICAL_SECTION Lock (int);
void Init ();
void Delete ();
#ifdef _CYG_THREAD_FAILSAFE
DWORD owner;
DWORD count;
#endif
private:
CRITICAL_SECTION lock;
bool inited;
@ -770,36 +673,22 @@ struct MTinterface
int concurrency;
long int threadcount;
// Used for main thread data, and sigproc thread
struct __reent_t reents;
struct _winsup_t winsup_reent;
callback *pthread_prepare;
callback *pthread_child;
callback *pthread_parent;
pthread_key reent_key;
pthread_key thread_self_key;
void Init ();
void fixup_before_fork (void);
void fixup_after_fork (void);
#if 1 // avoid initialization since zero is implied and
// only use of this class is static
MTinterface () : reent_key (NULL), thread_self_key (NULL) {}
#else
#if 0 // avoid initialization since zero is implied and
MTinterface () :
concurrency (0), threadcount (0),
pthread_prepare (NULL), pthread_child (NULL), pthread_parent (NULL),
reent_key (NULL), thread_self_key (NULL)
pthread_prepare (NULL), pthread_child (NULL), pthread_parent (NULL)
{
}
#endif
};
#define MT_INTERFACE user_data->threadinterface
#endif // MT_SAFE
#endif // _CYGNUS_THREADS_