mirror of
git://sourceware.org/git/newlib-cygwin.git
synced 2025-02-01 12:00:35 +08:00
9a4d574b8d
* Makefile.in (DLL_OFILES): Add sigfe.o. Remove reliance on cygwin.def from cygwin0.dll dependency since dependence on sigfe.o implies that. Generate def file on the fly using 'gendef'. * configure.in: Don't auto-generate cygwin.def. * configure: Regenerate. * cygwin.din: Add SIGFE stuff where appropriate. * dcrt0.cc (dll_crt0_1): Initialize cygwin tls early in process startup. Set _main_tls to address of the main thread's cygwin tls. * debug.h: Remove now unneeded WFSO and WFMO declarations. * exceptions.cc (_last_thread): Define. (set_thread_state_for_signals): New function. (reset_thread_exception_for_signals): Ditto. (init_thread_for_signals): Ditto. (delete_thread_for_signals): Ditto. (capture_thread_for_signals): Ditto. (handle_exceptions): Set return address explicitly for exceptions prior to calling sig_send. (interrupt_on_return): Eliminate. (setup_handler): Add preliminary implementation for dealing with thread-specific signals by querying _main_tls. (signal_exit): Use cygthread::main_thread_id instead of mainthread.id. (call_signal_handler_now): For now, just handle the main thread. * fork.cc (vfork): Save and restore main _my_tls. * gendef: New file. Generates def file and sigfe.s file. * gentls_offsets: New file. Generates offsets for perl to use in sigfe.s. * how-signals-work.txt: Mention that info is obsolete. * init.cc (dll_entry): Initialize cygwin tls storage here. * miscfuncs.cc (low_priority_sleep): Make a C function for easier calling from asm. * perthread.h (vfork_save::tls): New element. * signal.cc (nanosleep): Replace previous use of sigframe.call_signal_handler_now with straight call to call_signal_handler_now. (abort): Ditto. * syscalls.cc (readv): Ditto. * termios.cc (tcsetattr): Ditto. * wait.cc (wait4): Ditto. * sigproc.cc (sig_dispatch_pending): Ditto. (sig_send): Ditto. * sigproc.h: Declare call_signal_handler_now. * thread.cc (pthread::thread_init_wrapper): Initialize cygwin tls. Remove obsolete and unworking signal stuff. * thread.h (verifyable_object::sigs): Eliminate. (verifyable_object::sigmask): Eliminate. (verifyable_object::sigtodo): Eliminate. (verifyable_object::exit): Make attribute noreturn. (verifyable_object::thread_init_wrapper): Ditto. (pthread_null::exit): Ditto. * winbase.h (__stackbase): Always define. * winsup.h (low_priority_sleep): Declare as a "C" function. * include/cygwin/version.h: Bump API version to reflect sigwait export. * include/sys/queue.h: Protect SLIST_ENTRY from previous declaration. * signal.cc (sigwait): Implement. * select.cc (fhandler_base::ready_for_read): Add debugging output. * devices.h: Define more device pointers via their storage. * devices.in: Don't parse things like /dev/inet/tcp, as they really have no meaning. * devices.cc: Regenerate. * gendevices: Set proper protection for output file. * cygtls.h: New file. * gendef: New file. * gentls_offsets: New file. * tlsoffsets.h: New file. Autogenerated. * config/i386/longjmp.c: Remove. File subsumed by gendef output. * config/i386/makefrag: Remove obsolete file. * fhandler.cc: Remove spurious access_worker declaration. * spawn.cc (spawnve): Make debugging output more accurate. * cygwin-gperf: Remove. * devices.cc: Remove.
62 lines
1.6 KiB
C
62 lines
1.6 KiB
C
/* cygtls.h
|
|
|
|
Copyright 2003 Red Hat, Inc.
|
|
|
|
This software is a copyrighted work licensed under the terms of the
|
|
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
|
|
details. */
|
|
|
|
#ifndef _CYGTLS_H
|
|
#define _CYGTLS_H
|
|
|
|
#include <cygwin/signal.h>
|
|
|
|
#define CYGTLS_INITIALIZED 0x43227
|
|
#define CYGTLS_EXCEPTION (0x43227 + true)
|
|
|
|
/* Please keep this file simple. Changes to the below structure may require
|
|
acompanying changes to the very simple parser in the perl script
|
|
'gentls_offsets'. */
|
|
|
|
#pragma pack(push,4)
|
|
typedef __uint32_t __stack_t;
|
|
struct _threadinfo
|
|
{
|
|
void (*func) /*gentls_offsets*/(int)/*gentls_offsets*/;
|
|
int saved_errno;
|
|
int sa_flags;
|
|
sigset_t oldmask;
|
|
sigset_t newmask;
|
|
HANDLE event;
|
|
int *errno_addr;
|
|
unsigned initialized;
|
|
sigset_t sigmask;
|
|
sigset_t sigwait_mask;
|
|
siginfo_t *sigwait_info;
|
|
siginfo_t infodata;
|
|
void *tid;
|
|
struct _threadinfo *prev, *next;
|
|
__stack_t stack[8];
|
|
int sig;
|
|
__stack_t *stackptr;
|
|
|
|
struct _threadinfo *init (void *, void * = NULL);
|
|
void remove ();
|
|
void push (__stack_t, bool = false);
|
|
__stack_t pop ();
|
|
bool isinitialized () {return initialized == CYGTLS_INITIALIZED || initialized == CYGTLS_EXCEPTION;}
|
|
void set_state (bool);
|
|
void reset_exception ();
|
|
bool interrupt_now (CONTEXT *, int, void *, struct sigaction&)
|
|
__attribute__((regparm(3)));
|
|
void __stdcall interrupt_setup (int sig, void *handler, struct sigaction& siga, __stack_t retaddr)
|
|
__attribute__((regparm(3)));
|
|
};
|
|
#pragma pack(pop)
|
|
|
|
extern _threadinfo *_tlsbase __asm__ ("%fs:4");
|
|
#define _my_tls (_tlsbase[-1])
|
|
|
|
#define CYGTLS_PADSIZE (sizeof (_threadinfo) + 64)
|
|
#endif /*_CYGTLS_H*/
|