c350feda20
cygthread::stub2. Just return from function now since ExitThread is guaranteed by automatic _threadinfo wrapper. Define as per ThreadProc convention. (cygthread::stub2): Remove. (cygthread::simplestub): Perform similar operations to cygthread::stub. (cygthread::simplestub2): Remove. * cygthread.h (cygthread::stub): Declare as per ThreadProc convention. (cygthread::stub2): Remove declaration. (cygthread::simplestub): Declare as per ThreadProc convention. (cygthread::simplestub2): Remove declaration. * cygtls.h (_threadinfo::call): Define first argument as per ThreadProc convention. (_threadinfo::call2): Ditto. (_tlsbase): Define as char * pointer. (_tlstop): New definition. (_main_tls): Define here. * dcrt0.cc (alloc_stack): Revert previous change which called init_thread since information would be overwritten by fork later anyway. (dll_crt0_1): Use _tlsbase and _tlstop for setting stack bottom, top. * exceptions.cc: Move _main_tls declaration to cygtls.h. (_threadinfo::call): Define first argument as per ThreadProc convention. (_threadinfo::call2): Call ExitThread with thread function return value. (_threadinfo::init_thread): Don't initialize cygtls to zero if input arg is NULL. * fork.cc (fork_child): Reset _main_tls here. Reinitialize parts of _my_tls after copying data from parent. * init.cc (threadfunc_fe): New function. Front-end for all threads created in cygwin processes. (munge_threadfunc): New function. (dll_entry): Call munge_threadfunc to force the call of a thread wrapper. * thread.cc (pthread::thread_init_wrapper): Perform similar operations to cygthread::stub. (pthread::thread_init_wrapper2): Remove. * thread.h (pthread::thread_init_wrapper): Declare as per ThreadProc convention. (pthread::thread_init_wrapper2): Remove declaration. * window.cc (Winmain): Just return from function now since ExitThread is guaranteed by automatic _threadinfo wrapper.
72 lines
2.0 KiB
C
72 lines
2.0 KiB
C
/* cygtls.h
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Copyright 2003 Red Hat, Inc.
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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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#ifndef _CYGTLS_H
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#define _CYGTLS_H
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#include <cygwin/signal.h>
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#define CYGTLS_INITIALIZED 0x43227
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#define CYGTLS_EXCEPTION (0x43227 + true)
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/* Please keep this file simple. Changes to the below structure may require
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acompanying changes to the very simple parser in the perl script
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'gentls_offsets' (<<-- start parsing here). */
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#pragma pack(push,4)
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typedef __uint32_t __stack_t;
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struct _threadinfo
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{
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void (*func) /*gentls_offsets*/(int)/*gentls_offsets*/;
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int saved_errno;
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int sa_flags;
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sigset_t oldmask;
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sigset_t newmask;
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HANDLE event;
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int *errno_addr;
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unsigned initialized;
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sigset_t sigmask;
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sigset_t sigwait_mask;
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siginfo_t *sigwait_info;
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siginfo_t infodata;
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struct pthread *tid;
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struct _threadinfo *prev, *next;
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__stack_t stack[8];
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int sig;
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__stack_t *stackptr;
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/*gentls_offsets*/
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static CRITICAL_SECTION protect_linked_list;
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static void init ();
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void init_thread (void *);
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static void call (DWORD (*) (void *, void *), void *);
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void call2 (DWORD (*) (void *, void *), void *, void *);
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static struct _threadinfo *find_tls (int sig);
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void remove ();
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void push (__stack_t, bool = false);
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__stack_t pop ();
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bool isinitialized () {return initialized == CYGTLS_INITIALIZED || initialized == CYGTLS_EXCEPTION;}
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void set_state (bool);
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void reset_exception ();
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bool interrupt_now (CONTEXT *, int, void *, struct sigaction&)
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__attribute__((regparm(3)));
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void __stdcall interrupt_setup (int sig, void *handler, struct sigaction& siga, __stack_t retaddr)
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__attribute__((regparm(3)));
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operator HANDLE () const {return tid->win32_obj_id;}
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/*gentls_offsets*/
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};
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#pragma pack(pop)
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extern char *_tlsbase __asm__ ("%fs:4");
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extern char *_tlstop __asm__ ("%fs:8");
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#define _my_tls (((_threadinfo *) _tlsbase)[-1])
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extern _threadinfo *_main_tls;
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#define CYGTLS_PADSIZE (sizeof (_threadinfo) + 64)
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#endif /*_CYGTLS_H*/
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