Eliminate use of sigframe and sigthread throughout.
* 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 Generates offsets for perl to use in sigfe.s. * how-signals-work.txt: Mention that info is obsolete.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.
This commit is contained in:
Christopher Faylor
@ -695,7 +695,6 @@ cygwin_sendto (int fd, const void *buf, int len, int flags,
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{
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int res;
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sig_dispatch_pending ();
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sigframe thisframe (mainthread);
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fhandler_socket *fh = get (fd);
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@ -719,7 +718,6 @@ cygwin_recvfrom (int fd, void *buf, int len, int flags,
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{
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int res;
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sig_dispatch_pending ();
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sigframe thisframe (mainthread);
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fhandler_socket *fh = get (fd);
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@ -876,7 +874,6 @@ cygwin_connect (int fd, const struct sockaddr *name, int namelen)
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{
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int res;
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sig_dispatch_pending ();
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sigframe thisframe (mainthread);
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fhandler_socket *fh = get (fd);
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@ -950,7 +947,6 @@ extern "C" struct servent *
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cygwin_getservbyname (const char *name, const char *proto)
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{
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sig_dispatch_pending ();
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sigframe thisframe (mainthread);
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if (check_null_str_errno (name)
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|| (proto != NULL && check_null_str_errno (proto)))
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return NULL;
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@ -969,7 +965,6 @@ extern "C" struct servent *
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cygwin_getservbyport (int port, const char *proto)
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{
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sig_dispatch_pending ();
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sigframe thisframe (mainthread);
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if (proto != NULL && check_null_str_errno (proto))
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return NULL;
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@ -986,7 +981,6 @@ extern "C" int
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cygwin_gethostname (char *name, size_t len)
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{
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sig_dispatch_pending ();
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sigframe thisframe (mainthread);
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if (__check_null_invalid_struct_errno (name, len))
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return -1;
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@ -1022,7 +1016,6 @@ cygwin_gethostbyname (const char *name)
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static int a, b, c, d;
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sig_dispatch_pending ();
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sigframe thisframe (mainthread);
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if (check_null_str_errno (name))
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return NULL;
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@ -1063,7 +1056,6 @@ extern "C" struct hostent *
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cygwin_gethostbyaddr (const char *addr, int len, int type)
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{
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sig_dispatch_pending ();
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sigframe thisframe (mainthread);
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if (__check_invalid_read_ptr_errno (addr, len))
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return NULL;
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@ -1089,7 +1081,6 @@ cygwin_accept (int fd, struct sockaddr *peer, int *len)
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{
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int res;
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sig_dispatch_pending ();
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sigframe thisframe (mainthread);
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fhandler_socket *fh = get (fd);
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@ -1122,7 +1113,6 @@ cygwin_bind (int fd, const struct sockaddr *my_addr, int addrlen)
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{
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int res;
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sig_dispatch_pending ();
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sigframe thisframe (mainthread);
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fhandler_socket *fh = get (fd);
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if (__check_invalid_read_ptr_errno (my_addr, addrlen) || !fh)
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@ -1140,7 +1130,6 @@ cygwin_getsockname (int fd, struct sockaddr *addr, int *namelen)
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{
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int res;
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sig_dispatch_pending ();
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sigframe thisframe (mainthread);
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fhandler_socket *fh = get (fd);
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@ -1161,7 +1150,6 @@ cygwin_listen (int fd, int backlog)
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{
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int res;
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sig_dispatch_pending ();
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sigframe thisframe (mainthread);
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fhandler_socket *fh = get (fd);
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if (!fh)
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@ -1179,7 +1167,6 @@ cygwin_shutdown (int fd, int how)
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{
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int res;
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sig_dispatch_pending ();
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sigframe thisframe (mainthread);
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fhandler_socket *fh = get (fd);
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@ -1245,7 +1232,6 @@ cygwin_getpeername (int fd, struct sockaddr *name, int *len)
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{
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int res;
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sig_dispatch_pending ();
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sigframe thisframe (mainthread);
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fhandler_socket *fh = get (fd);
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@ -1286,7 +1272,6 @@ getdomainname (char *domain, size_t len)
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* Punt for now and assume MS-TCP on Win95.
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*/
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sig_dispatch_pending ();
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sigframe thisframe (mainthread);
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if (__check_null_invalid_struct_errno (domain, len))
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return -1;
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@ -1900,7 +1885,6 @@ get_ifconf (struct ifconf *ifc, int what)
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struct sockaddr_in *sa;
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sig_dispatch_pending ();
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sigframe thisframe (mainthread);
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if (check_null_invalid_struct_errno (ifc))
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return -1;
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@ -1979,7 +1963,6 @@ cygwin_rcmd (char **ahost, unsigned short inport, char *locuser,
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SOCKET fd2s;
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sig_dispatch_pending ();
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sigframe thisframe (mainthread);
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if (check_null_invalid_struct_errno (ahost) ||
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check_null_empty_str_errno (*ahost) ||
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@ -2032,7 +2015,6 @@ cygwin_rresvport (int *port)
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{
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int res;
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sig_dispatch_pending ();
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sigframe thisframe (mainthread);
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if (check_null_invalid_struct_errno (port))
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return -1;
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@ -2061,7 +2043,6 @@ cygwin_rexec (char **ahost, unsigned short inport, char *locuser,
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int res = -1;
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SOCKET fd2s;
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sig_dispatch_pending ();
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sigframe thisframe (mainthread);
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if (check_null_invalid_struct_errno (ahost) ||
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check_null_empty_str_errno (*ahost) ||
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@ -2119,7 +2100,6 @@ socketpair (int family, int type, int protocol, int *sb)
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int len;
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sig_dispatch_pending ();
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sigframe thisframe (mainthread);
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if (__check_null_invalid_struct_errno (sb, 2 * sizeof (int)))
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return -1;
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@ -2314,7 +2294,6 @@ cygwin_recvmsg (int fd, struct msghdr *msg, int flags)
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{
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int res;
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sig_dispatch_pending ();
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sigframe thisframe (mainthread);
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fhandler_socket *fh = get (fd);
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@ -2341,7 +2320,6 @@ cygwin_sendmsg (int fd, const struct msghdr *msg, int flags)
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{
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int res;
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sig_dispatch_pending ();
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sigframe thisframe (mainthread);
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fhandler_socket *fh = get (fd);
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