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Diffstat (limited to '05/tcc-0.9.25/signal.h')
-rw-r--r--05/tcc-0.9.25/signal.h253
1 files changed, 0 insertions, 253 deletions
diff --git a/05/tcc-0.9.25/signal.h b/05/tcc-0.9.25/signal.h
deleted file mode 100644
index ded960c..0000000
--- a/05/tcc-0.9.25/signal.h
+++ /dev/null
@@ -1,253 +0,0 @@
-#ifndef _SIGNAL_H
-#define _SIGNAL_H
-
-
-#include <stdc_common.h>
-
-typedef long sig_atomic_t; // there are no "asynchronous interrupts"
-
-#define SIG_DFL ((void *)0)
-#define SIG_IGN _sig_ign
-#define SIG_ERR ((void *)-1)
-
-typedef void (*_Sighandler)(int);
-
-struct sigaction {
- void (*sa_handler)(int);
- #define sa_sigaction sa_handler
- unsigned long sa_flags;
- void (*sa_restorer)(void);
- unsigned long sa_mask;
-};
-
-unsigned char _signal_restorer[] = {
- 0x48,0xb8,15,0,0,0,0,0,0,0, // mov rax, 15 (sigreturn)
- 0x0f,0x05 // syscall
-};
-
-#define _SIGNAL_HANDLERS 0xfff000
-#define _LE64(x) (x)&0xff, ((x)>> 8)&0xff, ((x)>>16)&0xff, ((x)>>24)&0xff, \
- ((x)>>32)&0xff, ((x)>>40)&0xff, ((x)>>48)&0xff, (x)>>56
-
-// we need to do this weird indirection because linux has a different
-// calling convention from us.
-
-unsigned char _signal_handler[] = {
- // signal # passed in rdi
- 0x48,0x89,0xf8, // mov rax, rdi (signal #)
- 0x50, // push rax
- 0x50, // push rax (allocate space for return value)
- 0x48,0xb8,_LE64(_SIGNAL_HANDLERS), // mov rax, _SIGNAL_HANDLERS
- 0x48,0x89,0xc3, // mov rbx, rax
- 0x48,0x89,0xf8, // mov rax, rdi (signal #)
- 0x48,0xc1,0xe0,0x03, // shl rax, 3
- 0x48,0x01,0xd8, // add rax, rbx
- 0x48,0x89,0xc3, // mov rbx, rax
- 0x48,0x8b,0x03, // mov rax, [rbx]
- 0xff,0xd0, // call rax
- 0x48,0x81,0xc4,16,0,0,0, // add rsp, 16
- 0xc3 // ret
-};
-
-#define _SA_RESTORER 0x04000000
-#define SA_SIGINFO 4
-#define SA_RESETHAND 0x80000000
-
-int __sigaction(int signum, const struct sigaction *act, struct sigaction *oldact) {
- return __syscall(13, signum, act, oldact, 8, 0, 0);
-}
-
-void sigemptyset(unsigned long *set) {
- *set = 0;
-}
-
-void _sig_ign(int signal) {
- return;
-}
-
-static unsigned long _sig_mask = 0;
-
-_Sighandler signal(int sig, _Sighandler func) {
- void **handlers = _SIGNAL_HANDLERS;
- _Sighandler ret = handlers[sig];
- if (func == SIG_IGN) {
- func = _sig_ign;
- }
- handlers[sig] = func;
-
- if (func == SIG_DFL) {
- _sig_mask &= ~(1ul << (sig-1));
- } else {
- _sig_mask |= 1ul << (sig-1);
- }
- struct sigaction act = {0};
- act.sa_handler = func == SIG_DFL ? SIG_DFL : (void*)_signal_handler;
- act.sa_mask = _sig_mask;
- act.sa_flags = _SA_RESTORER;
- act.sa_restorer = _signal_restorer;
- __sigaction(sig, &act, NULL);
- return ret;
-}
-
-int raise(int signal) {
- return kill(getpid(), signal);
-}
-
-#define FPE_INTDIV 1
-#define FPE_FLTDIV 3
-
-#define __SI_MAX_SIZE 128
-#if __WORDSIZE == 64
-# define __SI_PAD_SIZE ((__SI_MAX_SIZE / sizeof (int)) - 4)
-#else
-# define __SI_PAD_SIZE ((__SI_MAX_SIZE / sizeof (int)) - 3)
-#endif
-
-#ifndef __SI_ALIGNMENT
-# define __SI_ALIGNMENT /* nothing */
-#endif
-#ifndef __SI_BAND_TYPE
-# define __SI_BAND_TYPE long int
-#endif
-#ifndef __SI_CLOCK_T
-# define __SI_CLOCK_T __clock_t
-#endif
-#ifndef __SI_ERRNO_THEN_CODE
-# define __SI_ERRNO_THEN_CODE 1
-#endif
-#ifndef __SI_HAVE_SIGSYS
-# define __SI_HAVE_SIGSYS 1
-#endif
-#ifndef __SI_SIGFAULT_ADDL
-# define __SI_SIGFAULT_ADDL /* nothing */
-#endif
-
-typedef int __pid_t;
-typedef unsigned __uid_t;
-
-union __sigval
-{
- int __sival_int;
- void *__sival_ptr;
-};
-
-typedef union __sigval __sigval_t;
-typedef long __clock_t;
-
-typedef struct
- {
- int si_signo; /* Signal number. */
-#if __SI_ERRNO_THEN_CODE
- int si_errno; /* If non-zero, an errno value associated with
- this signal, as defined in <errno.h>. */
- int si_code; /* Signal code. */
-#else
- int si_code;
- int si_errno;
-#endif
-#if __WORDSIZE == 64
- int __pad0; /* Explicit padding. */
-#endif
-
- union
- {
- int _pad[__SI_PAD_SIZE];
-
- /* kill(). */
- struct
- {
- __pid_t si_pid; /* Sending process ID. */
- __uid_t si_uid; /* Real user ID of sending process. */
- } _kill;
-
- /* POSIX.1b timers. */
- struct
- {
- int si_tid; /* Timer ID. */
- int si_overrun; /* Overrun count. */
- __sigval_t si_sigval; /* Signal value. */
- } _timer;
-
- /* POSIX.1b signals. */
- struct
- {
- __pid_t si_pid; /* Sending process ID. */
- __uid_t si_uid; /* Real user ID of sending process. */
- __sigval_t si_sigval; /* Signal value. */
- } _rt;
-
- /* SIGCHLD. */
- struct
- {
- __pid_t si_pid; /* Which child. */
- __uid_t si_uid; /* Real user ID of sending process. */
- int si_status; /* Exit value or signal. */
- __SI_CLOCK_T si_utime;
- __SI_CLOCK_T si_stime;
- } _sigchld;
-
- /* SIGILL, SIGFPE, SIGSEGV, SIGBUS. */
- struct
- {
- void *si_addr; /* Faulting insn/memory ref. */
- __SI_SIGFAULT_ADDL
- short int si_addr_lsb; /* Valid LSB of the reported address. */
- union
- {
- /* used when si_code=SEGV_BNDERR */
- struct
- {
- void *_lower;
- void *_upper;
- } _addr_bnd;
- /* used when si_code=SEGV_PKUERR */
- uint32_t _pkey;
- } _bounds;
- } _sigfault;
-
- /* SIGPOLL. */
- struct
- {
- __SI_BAND_TYPE si_band; /* Band event for SIGPOLL. */
- int si_fd;
- } _sigpoll;
-
- /* SIGSYS. */
-#if __SI_HAVE_SIGSYS
- struct
- {
- void *_call_addr; /* Calling user insn. */
- int _syscall; /* Triggering system call number. */
- unsigned int _arch; /* AUDIT_ARCH_* of syscall. */
- } _sigsys;
-#endif
- } _sifields;
- } siginfo_t __SI_ALIGNMENT;
-
-
-/* X/Open requires some more fields with fixed names. */
-#define si_pid _sifields._kill.si_pid
-#define si_uid _sifields._kill.si_uid
-#define si_timerid _sifields._timer.si_tid
-#define si_overrun _sifields._timer.si_overrun
-#define si_status _sifields._sigchld.si_status
-#define si_utime _sifields._sigchld.si_utime
-#define si_stime _sifields._sigchld.si_stime
-#define si_value _sifields._rt.si_sigval
-#define si_int _sifields._rt.si_sigval.sival_int
-#define si_ptr _sifields._rt.si_sigval.sival_ptr
-#define si_addr _sifields._sigfault.si_addr
-#define si_addr_lsb _sifields._sigfault.si_addr_lsb
-#define si_lower _sifields._sigfault._bounds._addr_bnd._lower
-#define si_upper _sifields._sigfault._bounds._addr_bnd._upper
-#define si_pkey _sifields._sigfault._bounds._pkey
-#define si_band _sifields._sigpoll.si_band
-#define si_fd _sifields._sigpoll.si_fd
-#if __SI_HAVE_SIGSYS
-# define si_call_addr _sifields._sigsys._call_addr
-# define si_syscall _sifields._sigsys._syscall
-# define si_arch _sifields._sigsys._arch
-#endif
-
-
-#endif // _SIGNAL_H
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