diff options
Diffstat (limited to 'src/internal/syscall.h')
| -rw-r--r-- | src/internal/syscall.h | 64 |
1 files changed, 45 insertions, 19 deletions
diff --git a/src/internal/syscall.h b/src/internal/syscall.h index 975a0031..33d981f9 100644 --- a/src/internal/syscall.h +++ b/src/internal/syscall.h @@ -2,6 +2,7 @@ #define _INTERNAL_SYSCALL_H #include <features.h> +#include <errno.h> #include <sys/syscall.h> #include "syscall_arch.h" @@ -57,15 +58,22 @@ hidden long __syscall_ret(unsigned long), #define __syscall_cp(...) __SYSCALL_DISP(__syscall_cp,__VA_ARGS__) #define syscall_cp(...) __syscall_ret(__syscall_cp(__VA_ARGS__)) -#ifndef SYSCALL_USE_SOCKETCALL -#define __socketcall(nm,a,b,c,d,e,f) __syscall(SYS_##nm, a, b, c, d, e, f) -#define __socketcall_cp(nm,a,b,c,d,e,f) __syscall_cp(SYS_##nm, a, b, c, d, e, f) -#else -#define __socketcall(nm,a,b,c,d,e,f) __syscall(SYS_socketcall, __SC_##nm, \ - ((long [6]){ (long)a, (long)b, (long)c, (long)d, (long)e, (long)f })) -#define __socketcall_cp(nm,a,b,c,d,e,f) __syscall_cp(SYS_socketcall, __SC_##nm, \ - ((long [6]){ (long)a, (long)b, (long)c, (long)d, (long)e, (long)f })) -#endif +static inline long __alt_socketcall(int sys, int sock, int cp, syscall_arg_t a, syscall_arg_t b, syscall_arg_t c, syscall_arg_t d, syscall_arg_t e, syscall_arg_t f) +{ + long r; + if (cp) r = __syscall_cp(sys, a, b, c, d, e, f); + else r = __syscall(sys, a, b, c, d, e, f); + if (r != -ENOSYS) return r; +#ifdef SYS_socketcall + if (cp) r = __syscall_cp(SYS_socketcall, sock, ((long[6]){a, b, c, d, e, f})); + else r = __syscall(SYS_socketcall, sock, ((long[6]){a, b, c, d, e, f})); +#endif + return r; +} +#define __socketcall(nm, a, b, c, d, e, f) __alt_socketcall(SYS_##nm, __SC_##nm, 0, \ + __scc(a), __scc(b), __scc(c), __scc(d), __scc(e), __scc(f)) +#define __socketcall_cp(nm, a, b, c, d, e, f) __alt_socketcall(SYS_##nm, __SC_##nm, 1, \ + __scc(a), __scc(b), __scc(c), __scc(d), __scc(e), __scc(f)) /* fixup legacy 16-bit junk */ @@ -193,43 +201,43 @@ hidden long __syscall_ret(unsigned long), #define SYS_sendfile SYS_sendfile64 #endif -#ifndef SYS_timer_settime +#ifdef SYS_timer_settime32 #define SYS_timer_settime SYS_timer_settime32 #endif -#ifndef SYS_timer_gettime +#ifdef SYS_timer_gettime32 #define SYS_timer_gettime SYS_timer_gettime32 #endif -#ifndef SYS_timerfd_settime +#ifdef SYS_timerfd_settime32 #define SYS_timerfd_settime SYS_timerfd_settime32 #endif -#ifndef SYS_timerfd_gettime +#ifdef SYS_timerfd_gettime32 #define SYS_timerfd_gettime SYS_timerfd_gettime32 #endif -#ifndef SYS_clock_settime +#ifdef SYS_clock_settime32 #define SYS_clock_settime SYS_clock_settime32 #endif -#ifndef SYS_clock_gettime +#ifdef SYS_clock_gettime32 #define SYS_clock_gettime SYS_clock_gettime32 #endif -#ifndef SYS_clock_getres +#ifdef SYS_clock_getres_time32 #define SYS_clock_getres SYS_clock_getres_time32 #endif -#ifndef SYS_clock_nanosleep +#ifdef SYS_clock_nanosleep_time32 #define SYS_clock_nanosleep SYS_clock_nanosleep_time32 #endif -#ifndef SYS_gettimeofday +#ifdef SYS_gettimeofday_time32 #define SYS_gettimeofday SYS_gettimeofday_time32 #endif -#ifndef SYS_settimeofday +#ifdef SYS_settimeofday_time32 #define SYS_settimeofday SYS_settimeofday_time32 #endif @@ -338,6 +346,12 @@ hidden long __syscall_ret(unsigned long), #define __SC_recvmmsg 19 #define __SC_sendmmsg 20 +/* This is valid only because all socket syscalls are made via + * socketcall, which always fills unused argument slots with zeros. */ +#ifndef SYS_accept +#define SYS_accept SYS_accept4 +#endif + #ifndef SO_RCVTIMEO_OLD #define SO_RCVTIMEO_OLD 20 #endif @@ -377,6 +391,18 @@ hidden long __syscall_ret(unsigned long), #define __sys_open_cp(...) __SYSCALL_DISP(__sys_open_cp,,__VA_ARGS__) #define sys_open_cp(...) __syscall_ret(__sys_open_cp(__VA_ARGS__)) +#ifdef SYS_wait4 +#define __sys_wait4(a,b,c,d) __syscall(SYS_wait4,a,b,c,d) +#define __sys_wait4_cp(a,b,c,d) __syscall_cp(SYS_wait4,a,b,c,d) +#else +hidden long __emulate_wait4(int, int *, int, void *, int); +#define __sys_wait4(a,b,c,d) __emulate_wait4(a,b,c,d,0) +#define __sys_wait4_cp(a,b,c,d) __emulate_wait4(a,b,c,d,1) +#endif + +#define sys_wait4(a,b,c,d) __syscall_ret(__sys_wait4(a,b,c,d)) +#define sys_wait4_cp(a,b,c,d) __syscall_ret(__sys_wait4_cp(a,b,c,d)) + hidden void __procfdname(char __buf[static 15+3*sizeof(int)], unsigned); hidden void *__vdsosym(const char *, const char *); |