/* cygtls.h Copyright 2003, 2004, 2005 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 #include #include #include #define _NOMNTENT_FUNCS #include #undef _NOMNTENT_FUNCS #include #ifndef _WINSOCK_H /* Stupid hack: Including winsock.h explicitly causes too many problems. */ struct sockaddr_in { short sin_family; u_short sin_port; struct in_addr { union { struct { u_char s_b1, s_b2, s_b3, s_b4; } S_un_b; struct { u_short s_w1, s_w2; } S_un_w; u_long S_addr; } S_un; }; struct in_addr sin_addr; char sin_zero[8]; }; typedef unsigned int SOCKET; #endif #define CYGTLS_INITIALIZED 0x43227 #define CYGTLS_EXCEPTION (0x43227 + true) #define CYGTLSMAGIC "D0Ub313v31nm&G1c?"; #ifndef CYG_MAX_PATH # define CYG_MAX_PATH 260 #endif #ifndef UNLEN # define UNLEN 256 #endif #define TLS_STACK_SIZE 256 #include "cygthread.h" #pragma pack(push,4) struct _local_storage { /* 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; unsigned available_drives; char mnt_type[80]; char mnt_opts[80]; char mnt_fsname[CYG_MAX_PATH]; char mnt_dir[CYG_MAX_PATH]; /* select.cc */ SOCKET exitsock; struct sockaddr_in exitsock_sin; /* strerror */ char strerror_buf[20]; /* sysloc.cc */ char *process_ident; // note: malloced 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; // note: malloced struct protoent *protoent_buf; // note: malloced struct servent *servent_buf; // note: malloced struct hostent *hostent_buf; // note: malloced char signamebuf[sizeof ("Unknown signal 4294967295 ")]; /* cygthread.cc */ char unknown_thread_name[30]; /* syscalls.cc */ int setmode_file; int setmode_mode; }; typedef struct struct_waitq { int pid; int options; int status; HANDLE ev; void *rusage; /* pointer to potential rusage */ struct struct_waitq *next; HANDLE thread_ev; } waitq; /* Changes to the below structure may require acompanying changes to the very simple parser in the perl script 'gentls_offsets' (<<-- start parsing here). The union in this structure is used to force alignment between the version of the compiler used to generate tlsoffsets.h and the cygwin cross compiler. */ /*gentls_offsets*/ #include "cygerrno.h" extern "C" int __sjfault (jmp_buf); /*gentls_offsets*/ typedef __uint32_t __stack_t; struct _cygtls { void (*func) /*gentls_offsets*/(int)/*gentls_offsets*/; int saved_errno; int sa_flags; sigset_t oldmask; sigset_t deltamask; HANDLE event; int *errno_addr; unsigned initialized; sigset_t sigmask; sigset_t sigwait_mask; siginfo_t *sigwait_info; unsigned threadkill; siginfo_t infodata; struct pthread *tid; union { struct _reent local_clib; char __dontuse[8 * ((sizeof(struct _reent) + 4) / 8)]; }; struct _local_storage locals; class cygthread *_ctinfo; void *_myfault; int _myfault_errno; waitq wq; struct _cygtls *prev, *next; __stack_t *stackptr; int sig; unsigned incyg; unsigned spinning; unsigned stacklock; __stack_t stack[TLS_STACK_SIZE]; unsigned padding[0]; /*gentls_offsets*/ static CRITICAL_SECTION protect_linked_list; static void init (); void init_thread (void *, DWORD (*) (void *, void *)); static void call (DWORD (*) (void *, void *), void *); static void call2 (DWORD (*) (void *, void *), void *, void *) __attribute__ ((regparm (3))); static struct _cygtls *find_tls (int sig); void remove (DWORD); void push (__stack_t, bool) __attribute__ ((regparm (3))); __stack_t pop () __attribute__ ((regparm (1))); bool isinitialized () const {return initialized == CYGTLS_INITIALIZED || initialized == CYGTLS_EXCEPTION;} bool in_exception () const {return 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) __attribute__((regparm(3))); void init_threadlist_exceptions (struct _exception_list *); #ifdef _THREAD_H operator HANDLE () const {return tid->win32_obj_id;} #endif void set_siginfo (struct sigpacket *) __attribute__ ((regparm (3))); void set_threadkill () {threadkill = true;} void reset_threadkill () {threadkill = false;} int call_signal_handler () __attribute__ ((regparm (1))); void remove_wq (DWORD) __attribute__ ((regparm (1))); void fixup_after_fork () __attribute__ ((regparm (1))); void lock () __attribute__ ((regparm (1))); void unlock () __attribute__ ((regparm (1))); bool locked () __attribute__ ((regparm (1))); void*& fault_guarded () {return _myfault;} void return_from_fault () { if (_myfault_errno) set_errno (_myfault_errno); longjmp ((int *) _myfault, 1); } int setup_fault (jmp_buf j, int myerrno) __attribute__ ((always_inline)) { if (_myfault) return 0; _myfault = (void *) j; _myfault_errno = myerrno; return __sjfault (j); } void clear_fault (jmp_buf j) __attribute__ ((always_inline)) { if (j == _myfault) _myfault = NULL; } /*gentls_offsets*/ }; #pragma pack(pop) extern char *_tlsbase __asm__ ("%fs:4"); extern char *_tlstop __asm__ ("%fs:8"); #define _my_tls (((_cygtls *) _tlsbase)[-1]) extern _cygtls *_main_tls; /*gentls_offsets*/ class myfault { jmp_buf buf; public: ~myfault () __attribute__ ((always_inline)) { _my_tls.clear_fault (buf); } inline int faulted (int myerrno = 0) __attribute__ ((always_inline)) { return _my_tls.setup_fault (buf, myerrno); } }; /*gentls_offsets*/ #define __getreent() (&_my_tls.local_clib) const int CYGTLS_PADSIZE = (((char *) _main_tls->padding) - ((char *) _main_tls)); #endif /*_CYGTLS_H*/