syscall organization overhaul

now public syscall.h only exposes __NR_* and SYS_* constants and the
variadic syscall function. no macros or inline functions, no
__syscall_ret or other internal details, no 16-/32-bit legacy syscall
renaming, etc. this logic has all been moved to src/internal/syscall.h
with the arch-specific parts in arch/$(ARCH)/syscall_arch.h, and the
amount of arch-specific stuff has been reduced to a minimum.

changes still need to be reviewed/double-checked. minimal testing on
i386 and mips has already been performed.

arch/arm/bits/syscall.h

@@ -1,50 +1,3 @@
-#define __SYSCALL_LL_E(x) \
-((union { long long ll; long l[2]; }){ .ll = x }).l[0], \
-((union { long long ll; long l[2]; }){ .ll = x }).l[1]
-#define __SYSCALL_LL_O(x) 0, __SYSCALL_LL_E((x))
-
-#define __SYSCALL_SSLEN 8
-
-long (__syscall)(long, ...);
-
-static __inline long __syscall0(long n)
-{
-	return (__syscall)(n);
-}
-
-static __inline long __syscall1(long n, long a)
-{
-	return (__syscall)(n, a);
-}
-
-static __inline long __syscall2(long n, long a, long b)
-{
-	return (__syscall)(n, a, b);
-}
-
-static __inline long __syscall3(long n, long a, long b, long c)
-{
-	return (__syscall)(n, a, b, c);
-}
-
-static __inline long __syscall4(long n, long a, long b, long c, long d)
-{
-	return (__syscall)(n, a, b, c, d);
-}
-
-static __inline long __syscall5(long n, long a, long b, long c, long d, long e)
-{
-	return (__syscall)(n, a, b, c, d, e);
-}
-
-static __inline long __syscall6(long n, long a, long b, long c, long d, long e, long f)
-{
-	return (__syscall)(n, a, b, c, d, e, f);
-}
-
-#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)
-
 #define __NR_restart_syscall	0
 #define __NR_exit	1
 #define __NR_fork	2
@@ -379,78 +332,6 @@ static __inline long __syscall6(long n, long a, long b, long c, long d, long e,
 #define __NR_process_vm_readv	376
 #define __NR_process_vm_writev	377
 
-/* fixup legacy 16-bit junk */
-#undef __NR_lchown
-#undef __NR_getuid
-#undef __NR_getgid
-#undef __NR_geteuid
-#undef __NR_getegid
-#undef __NR_setreuid
-#undef __NR_setregid
-#undef __NR_getgroups
-#undef __NR_setgroups
-#undef __NR_fchown
-#undef __NR_setresuid
-#undef __NR_getresuid
-#undef __NR_setresgid
-#undef __NR_getresgid
-#undef __NR_chown
-#undef __NR_setuid
-#undef __NR_setgid
-#undef __NR_setfsuid
-#undef __NR_setfsgid
-#define __NR_lchown __NR_lchown32
-#define __NR_getuid __NR_getuid32
-#define __NR_getgid __NR_getgid32
-#define __NR_geteuid __NR_geteuid32
-#define __NR_getegid __NR_getegid32
-#define __NR_setreuid __NR_setreuid32
-#define __NR_setregid __NR_setregid32
-#define __NR_getgroups __NR_getgroups32
-#define __NR_setgroups __NR_setgroups32
-#define __NR_fchown __NR_fchown32
-#define __NR_setresuid __NR_setresuid32
-#define __NR_getresuid __NR_getresuid32
-#define __NR_setresgid __NR_setresgid32
-#define __NR_getresgid __NR_getresgid32
-#define __NR_chown __NR_chown32
-#define __NR_setuid __NR_setuid32
-#define __NR_setgid __NR_setgid32
-#define __NR_setfsuid __NR_setfsuid32
-#define __NR_setfsgid __NR_setfsgid32
-
-
-/* fixup legacy 32-bit-vs-lfs64 junk */
-#undef __NR_fcntl
-#undef __NR_getdents
-#undef __NR_ftruncate
-#undef __NR_truncate
-#undef __NR_stat
-#undef __NR_fstat
-#undef __NR_lstat
-#undef __NR_statfs
-#undef __NR_fstatfs
-#define __NR_fcntl __NR_fcntl64
-#define __NR_getdents __NR_getdents64
-#define __NR_ftruncate __NR_ftruncate64
-#define __NR_truncate __NR_truncate64
-#define __NR_stat __NR_stat64
-#define __NR_fstat __NR_fstat64
-#define __NR_lstat __NR_lstat64
-#define __NR_statfs __NR_statfs64
-#define __NR_fstatfs __NR_fstatfs64
-#define __NR_fstatat __NR_fstatat64
-#define __NR_pread __NR_pread64
-#define __NR_pwrite __NR_pwrite64
-
-#define __NR_fadvise __NR_fadvise64_64
-
-#undef __NR_getrlimit
-#define __NR_getrlimit __NR_ugetrlimit
-
-#undef __NR_select
-#define __NR_select __NR__newselect
-
 
 /* Repeated with SYS_ prefix */
 
@@ -787,75 +668,3 @@ static __inline long __syscall6(long n, long a, long b, long c, long d, long e,
 #define SYS_setns	375
 #define SYS_process_vm_readv	376
 #define SYS_process_vm_writev	377
-
-/* fixup legacy 16-bit junk */
-#undef SYS_lchown
-#undef SYS_getuid
-#undef SYS_getgid
-#undef SYS_geteuid
-#undef SYS_getegid
-#undef SYS_setreuid
-#undef SYS_setregid
-#undef SYS_getgroups
-#undef SYS_setgroups
-#undef SYS_fchown
-#undef SYS_setresuid
-#undef SYS_getresuid
-#undef SYS_setresgid
-#undef SYS_getresgid
-#undef SYS_chown
-#undef SYS_setuid
-#undef SYS_setgid
-#undef SYS_setfsuid
-#undef SYS_setfsgid
-#define SYS_lchown SYS_lchown32
-#define SYS_getuid SYS_getuid32
-#define SYS_getgid SYS_getgid32
-#define SYS_geteuid SYS_geteuid32
-#define SYS_getegid SYS_getegid32
-#define SYS_setreuid SYS_setreuid32
-#define SYS_setregid SYS_setregid32
-#define SYS_getgroups SYS_getgroups32
-#define SYS_setgroups SYS_setgroups32
-#define SYS_fchown SYS_fchown32
-#define SYS_setresuid SYS_setresuid32
-#define SYS_getresuid SYS_getresuid32
-#define SYS_setresgid SYS_setresgid32
-#define SYS_getresgid SYS_getresgid32
-#define SYS_chown SYS_chown32
-#define SYS_setuid SYS_setuid32
-#define SYS_setgid SYS_setgid32
-#define SYS_setfsuid SYS_setfsuid32
-#define SYS_setfsgid SYS_setfsgid32
-
-
-/* fixup legacy 32-bit-vs-lfs64 junk */
-#undef SYS_fcntl
-#undef SYS_getdents
-#undef SYS_ftruncate
-#undef SYS_truncate
-#undef SYS_stat
-#undef SYS_fstat
-#undef SYS_lstat
-#undef SYS_statfs
-#undef SYS_fstatfs
-#define SYS_fcntl SYS_fcntl64
-#define SYS_getdents SYS_getdents64
-#define SYS_ftruncate SYS_ftruncate64
-#define SYS_truncate SYS_truncate64
-#define SYS_stat SYS_stat64
-#define SYS_fstat SYS_fstat64
-#define SYS_lstat SYS_lstat64
-#define SYS_statfs SYS_statfs64
-#define SYS_fstatfs SYS_fstatfs64
-#define SYS_fstatat SYS_fstatat64
-#define SYS_pread SYS_pread64
-#define SYS_pwrite SYS_pwrite64
-
-#define SYS_fadvise SYS_fadvise64_64
-
-#undef SYS_getrlimit
-#define SYS_getrlimit SYS_ugetrlimit
-
-#undef SYS_select
-#define SYS_select SYS__newselect

arch/arm/syscall_arch.h

@@ -0,0 +1,41 @@
+#define __SYSCALL_LL_E(x) \
+((union { long long ll; long l[2]; }){ .ll = x }).l[0], \
+((union { long long ll; long l[2]; }){ .ll = x }).l[1]
+#define __SYSCALL_LL_O(x) 0, __SYSCALL_LL_E((x))
+
+#define __SYSCALL_SSLEN 8
+
+static inline long __syscall0(long n)
+{
+	return (__syscall)(n);
+}
+
+static inline long __syscall1(long n, long a)
+{
+	return (__syscall)(n, a);
+}
+
+static inline long __syscall2(long n, long a, long b)
+{
+	return (__syscall)(n, a, b);
+}
+
+static inline long __syscall3(long n, long a, long b, long c)
+{
+	return (__syscall)(n, a, b, c);
+}
+
+static inline long __syscall4(long n, long a, long b, long c, long d)
+{
+	return (__syscall)(n, a, b, c, d);
+}
+
+static inline long __syscall5(long n, long a, long b, long c, long d, long e)
+{
+	return (__syscall)(n, a, b, c, d, e);
+}
+
+static inline long __syscall6(long n, long a, long b, long c, long d, long e, long f)
+{
+	return (__syscall)(n, a, b, c, d, e, f);
+}

arch/i386/bits/syscall.h

@@ -1,145 +1,3 @@
-#define __SYSCALL_LL_E(x) \
-((union { long long ll; long l[2]; }){ .ll = x }).l[0], \
-((union { long long ll; long l[2]; }){ .ll = x }).l[1]
-#define __SYSCALL_LL_O(x) __SYSCALL_LL_E((x))
-
-#define __SYSCALL_SSLEN 8
-
-static __inline long __syscall0(long __n)
-{
-	unsigned long __ret;
-	__asm__ __volatile__ ("int $128" : "=a"(__ret) : "a"(__n) : "memory");
-	return __ret;
-}
-
-#ifndef __PIC__
-
-static __inline long __syscall1(long __n, long __a1)
-{
-	unsigned long __ret;
-	__asm__ __volatile__ ("int $128" : "=a"(__ret) : "a"(__n), "b"(__a1) : "memory");
-	return __ret;
-}
-
-static __inline long __syscall2(long __n, long __a1, long __a2)
-{
-	unsigned long __ret;
-	__asm__ __volatile__ ("int $128" : "=a"(__ret) : "a"(__n), "b"(__a1), "c"(__a2) : "memory");
-	return __ret;
-}
-
-static __inline long __syscall3(long __n, long __a1, long __a2, long __a3)
-{
-	unsigned long __ret;
-	__asm__ __volatile__ ("int $128" : "=a"(__ret) : "a"(__n), "b"(__a1), "c"(__a2), "d"(__a3) : "memory");
-	return __ret;
-}
-
-static __inline long __syscall4(long __n, long __a1, long __a2, long __a3, long __a4)
-{
-	unsigned long __ret;
-	__asm__ __volatile__ ("int $128" : "=a"(__ret) : "a"(__n), "b"(__a1), "c"(__a2), "d"(__a3), "S"(__a4) : "memory");
-	return __ret;
-}
-
-static __inline long __syscall5(long __n, long __a1, long __a2, long __a3, long __a4, long __a5)
-{
-	unsigned long __ret;
-	__asm__ __volatile__ ("int $128" : "=a"(__ret) : "a"(__n), "b"(__a1), "c"(__a2), "d"(__a3), "S"(__a4), "D"(__a5) : "memory");
-	return __ret;
-}
-
-static __inline long __syscall6(long __n, long __a1, long __a2, long __a3, long __a4, long __a5, long __a6)
-{
-	unsigned long __ret;
-	__asm__ __volatile__ ("pushl %7 ; pushl %%ebp ; mov 4(%%esp),%%ebp ; int $128 ; popl %%ebp ; popl %%ecx"
-		: "=a"(__ret) : "a"(__n), "b"(__a1), "c"(__a2), "d"(__a3), "S"(__a4), "D"(__a5), "g"(__a6) : "memory");
-	return __ret;
-}
-
-#else
-
-static __inline long __syscall1(long __n, long __a1)
-{
-	unsigned long __ret;
-	__asm__ __volatile__ ("xchg %2,%%ebx ; int $128 ; xchg %2,%%ebx"
-		: "=a"(__ret) : "a"(__n), "d"(__a1) : "memory");
-	return __ret;
-}
-
-static __inline long __syscall2(long __n, long __a1, long __a2)
-{
-	unsigned long __ret;
-	__asm__ __volatile__ ("xchg %2,%%ebx ; int $128 ; xchg %2,%%ebx"
-		: "=a"(__ret) : "a"(__n), "d"(__a1), "c"(__a2) : "memory");
-	return __ret;
-}
-
-static __inline long __syscall3(long __n, long __a1, long __a2, long __a3)
-{
-	unsigned long __ret;
-	__asm__ __volatile__ ("xchg %2,%%ebx ; int $128 ; xchg %2,%%ebx"
-		: "=a"(__ret) : "a"(__n), "S"(__a1), "c"(__a2), "d"(__a3) : "memory");
-	return __ret;
-}
-
-static __inline long __syscall4(long __n, long __a1, long __a2, long __a3, long __a4)
-{
-	unsigned long __ret;
-	__asm__ __volatile__ ("xchg %2,%%ebx ; int $128 ; xchg %2,%%ebx"
-		: "=a"(__ret) : "a"(__n), "D"(__a1), "c"(__a2), "d"(__a3), "S"(__a4) : "memory");
-	return __ret;
-}
-
-#if 0
-static __inline long __syscall5(long __n, long __a1, long __a2, long __a3, long __a4, long __a5)
-{
-	unsigned long __ret;
-	__asm__ __volatile__ ("pushl %2 ; pushl %%ebx ; mov 4(%%esp),%%ebx ; int $128 ; popl %%ebx ; popl %%ecx"
-		: "=a"(__ret) : "a"(__n), "g"(__a1), "c"(__a2), "d"(__a3), "S"(__a4), "D"(__a5) : "memory");
-	return __ret;
-}
-#else
-static __inline long __syscall5(long __n, long __a1, long __a2, long __a3, long __a4, long __a5)
-{
-	return (__syscall)(__n, __a1, __a2, __a3, __a4, __a5);
-}
-#endif
-
-static __inline long __syscall6(long __n, long __a1, long __a2, long __a3, long __a4, long __a5, long __a6)
-{
-	return (__syscall)(__n, __a1, __a2, __a3, __a4, __a5, __a6);
-}
-
-#endif
-
-
-#define __SC_socket      1
-#define __SC_bind        2
-#define __SC_connect     3
-#define __SC_listen      4
-#define __SC_accept      5
-#define __SC_getsockname 6
-#define __SC_getpeername 7
-#define __SC_socketpair  8
-#define __SC_send        9
-#define __SC_recv        10
-#define __SC_sendto      11
-#define __SC_recvfrom    12
-#define __SC_shutdown    13
-#define __SC_setsockopt  14
-#define __SC_getsockopt  15
-#define __SC_sendmsg     16
-#define __SC_recvmsg     17
-#define __SC_accept4     18
-#define __SC_recvmmsg    19
-#define __SC_sendmmsg    20
-
-#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 }))
-
 #define __NR_restart_syscall      0
 #define __NR_exit		  1
 #define __NR_fork		  2
@@ -485,78 +343,6 @@ static __inline long __syscall6(long __n, long __a1, long __a2, long __a3, long
 #define __NR_process_vm_readv	347
 #define __NR_process_vm_writev	348
 
-/* fixup legacy 16-bit junk */
-#undef __NR_lchown
-#undef __NR_getuid
-#undef __NR_getgid
-#undef __NR_geteuid
-#undef __NR_getegid
-#undef __NR_setreuid
-#undef __NR_setregid
-#undef __NR_getgroups
-#undef __NR_setgroups
-#undef __NR_fchown
-#undef __NR_setresuid
-#undef __NR_getresuid
-#undef __NR_setresgid
-#undef __NR_getresgid
-#undef __NR_chown
-#undef __NR_setuid
-#undef __NR_setgid
-#undef __NR_setfsuid
-#undef __NR_setfsgid
-#define __NR_lchown __NR_lchown32
-#define __NR_getuid __NR_getuid32
-#define __NR_getgid __NR_getgid32
-#define __NR_geteuid __NR_geteuid32
-#define __NR_getegid __NR_getegid32
-#define __NR_setreuid __NR_setreuid32
-#define __NR_setregid __NR_setregid32
-#define __NR_getgroups __NR_getgroups32
-#define __NR_setgroups __NR_setgroups32
-#define __NR_fchown __NR_fchown32
-#define __NR_setresuid __NR_setresuid32
-#define __NR_getresuid __NR_getresuid32
-#define __NR_setresgid __NR_setresgid32
-#define __NR_getresgid __NR_getresgid32
-#define __NR_chown __NR_chown32
-#define __NR_setuid __NR_setuid32
-#define __NR_setgid __NR_setgid32
-#define __NR_setfsuid __NR_setfsuid32
-#define __NR_setfsgid __NR_setfsgid32
-
-
-/* fixup legacy 32-bit-vs-lfs64 junk */
-#undef __NR_fcntl
-#undef __NR_getdents
-#undef __NR_ftruncate
-#undef __NR_truncate
-#undef __NR_stat
-#undef __NR_fstat
-#undef __NR_lstat
-#undef __NR_statfs
-#undef __NR_fstatfs
-#define __NR_fcntl __NR_fcntl64
-#define __NR_getdents __NR_getdents64
-#define __NR_ftruncate __NR_ftruncate64
-#define __NR_truncate __NR_truncate64
-#define __NR_stat __NR_stat64
-#define __NR_fstat __NR_fstat64
-#define __NR_lstat __NR_lstat64
-#define __NR_statfs __NR_statfs64
-#define __NR_fstatfs __NR_fstatfs64
-#define __NR_fstatat __NR_fstatat64
-#define __NR_pread __NR_pread64
-#define __NR_pwrite __NR_pwrite64
-
-#define __NR_fadvise __NR_fadvise64_64
-
-#undef __NR_getrlimit
-#define __NR_getrlimit __NR_ugetrlimit
-
-#undef __NR_select
-#define __NR_select __NR__newselect
-
 
 /* Repeated with SYS_ prefix */
 
@@ -904,75 +690,3 @@ static __inline long __syscall6(long __n, long __a1, long __a2, long __a3, long
 #define SYS_setns		346
 #define SYS_process_vm_readv	347
 #define SYS_process_vm_writev	348
-
-/* fixup legacy 16-bit junk */
-#undef SYS_lchown
-#undef SYS_getuid
-#undef SYS_getgid
-#undef SYS_geteuid
-#undef SYS_getegid
-#undef SYS_setreuid
-#undef SYS_setregid
-#undef SYS_getgroups
-#undef SYS_setgroups
-#undef SYS_fchown
-#undef SYS_setresuid
-#undef SYS_getresuid
-#undef SYS_setresgid
-#undef SYS_getresgid
-#undef SYS_chown
-#undef SYS_setuid
-#undef SYS_setgid
-#undef SYS_setfsuid
-#undef SYS_setfsgid
-#define SYS_lchown SYS_lchown32
-#define SYS_getuid SYS_getuid32
-#define SYS_getgid SYS_getgid32
-#define SYS_geteuid SYS_geteuid32
-#define SYS_getegid SYS_getegid32
-#define SYS_setreuid SYS_setreuid32
-#define SYS_setregid SYS_setregid32
-#define SYS_getgroups SYS_getgroups32
-#define SYS_setgroups SYS_setgroups32
-#define SYS_fchown SYS_fchown32
-#define SYS_setresuid SYS_setresuid32
-#define SYS_getresuid SYS_getresuid32
-#define SYS_setresgid SYS_setresgid32
-#define SYS_getresgid SYS_getresgid32
-#define SYS_chown SYS_chown32
-#define SYS_setuid SYS_setuid32
-#define SYS_setgid SYS_setgid32
-#define SYS_setfsuid SYS_setfsuid32
-#define SYS_setfsgid SYS_setfsgid32
-
-
-/* fixup legacy 32-bit-vs-lfs64 junk */
-#undef SYS_fcntl
-#undef SYS_getdents
-#undef SYS_ftruncate
-#undef SYS_truncate
-#undef SYS_stat
-#undef SYS_fstat
-#undef SYS_lstat
-#undef SYS_statfs
-#undef SYS_fstatfs
-#define SYS_fcntl SYS_fcntl64
-#define SYS_getdents SYS_getdents64
-#define SYS_ftruncate SYS_ftruncate64
-#define SYS_truncate SYS_truncate64
-#define SYS_stat SYS_stat64
-#define SYS_fstat SYS_fstat64
-#define SYS_lstat SYS_lstat64
-#define SYS_statfs SYS_statfs64
-#define SYS_fstatfs SYS_fstatfs64
-#define SYS_fstatat SYS_fstatat64
-#define SYS_pread SYS_pread64
-#define SYS_pwrite SYS_pwrite64
-
-#define SYS_fadvise SYS_fadvise64_64
-
-#undef SYS_getrlimit
-#define SYS_getrlimit SYS_ugetrlimit
-
-#undef SYS_select
-#define SYS_select SYS__newselect

arch/i386/syscall_arch.h

@@ -0,0 +1,136 @@
+#define __SYSCALL_LL_E(x) \
+((union { long long ll; long l[2]; }){ .ll = x }).l[0], \
+((union { long long ll; long l[2]; }){ .ll = x }).l[1]
+#define __SYSCALL_LL_O(x) __SYSCALL_LL_E((x))
+
+#define __SYSCALL_SSLEN 8
+
+static inline long __syscall0(long n)
+{
+	unsigned long __ret;
+	__asm__ __volatile__ ("int $128" : "=a"(__ret) : "a"(n) : "memory");
+	return __ret;
+}
+
+#ifndef __PIC__
+
+static inline long __syscall1(long n, long a1)
+{
+	unsigned long __ret;
+	__asm__ __volatile__ ("int $128" : "=a"(__ret) : "a"(n), "b"(a1) : "memory");
+	return __ret;
+}
+
+static inline long __syscall2(long n, long a1, long a2)
+{
+	unsigned long __ret;
+	__asm__ __volatile__ ("int $128" : "=a"(__ret) : "a"(n), "b"(a1), "c"(a2) : "memory");
+	return __ret;
+}
+
+static inline long __syscall3(long n, long a1, long a2, long a3)
+{
+	unsigned long __ret;
+	__asm__ __volatile__ ("int $128" : "=a"(__ret) : "a"(n), "b"(a1), "c"(a2), "d"(a3) : "memory");
+	return __ret;
+}
+
+static inline long __syscall4(long n, long a1, long a2, long a3, long a4)
+{
+	unsigned long __ret;
+	__asm__ __volatile__ ("int $128" : "=a"(__ret) : "a"(n), "b"(a1), "c"(a2), "d"(a3), "S"(a4) : "memory");
+	return __ret;
+}
+
+static inline long __syscall5(long n, long a1, long a2, long a3, long a4, long a5)
+{
+	unsigned long __ret;
+	__asm__ __volatile__ ("int $128" : "=a"(__ret) : "a"(n), "b"(a1), "c"(a2), "d"(a3), "S"(a4), "D"(a5) : "memory");
+	return __ret;
+}
+
+static inline long __syscall6(long n, long a1, long a2, long a3, long a4, long a5, long a6)
+{
+	unsigned long __ret;
+	__asm__ __volatile__ ("pushl %7 ; pushl %%ebp ; mov 4(%%esp),%%ebp ; int $128 ; popl %%ebp ; popl %%ecx"
+		: "=a"(__ret) : "a"(n), "b"(a1), "c"(a2), "d"(a3), "S"(a4), "D"(a5), "g"(a6) : "memory");
+	return __ret;
+}
+
+#else
+
+static inline long __syscall1(long n, long a1)
+{
+	unsigned long __ret;
+	__asm__ __volatile__ ("xchg %2,%%ebx ; int $128 ; xchg %2,%%ebx"
+		: "=a"(__ret) : "a"(n), "d"(a1) : "memory");
+	return __ret;
+}
+
+static inline long __syscall2(long n, long a1, long a2)
+{
+	unsigned long __ret;
+	__asm__ __volatile__ ("xchg %2,%%ebx ; int $128 ; xchg %2,%%ebx"
+		: "=a"(__ret) : "a"(n), "d"(a1), "c"(a2) : "memory");
+	return __ret;
+}
+
+static inline long __syscall3(long n, long a1, long a2, long a3)
+{
+	unsigned long __ret;
+	__asm__ __volatile__ ("xchg %2,%%ebx ; int $128 ; xchg %2,%%ebx"
+		: "=a"(__ret) : "a"(n), "S"(a1), "c"(a2), "d"(a3) : "memory");
+	return __ret;
+}
+
+static inline long __syscall4(long n, long a1, long a2, long a3, long a4)
+{
+	unsigned long __ret;
+	__asm__ __volatile__ ("xchg %2,%%ebx ; int $128 ; xchg %2,%%ebx"
+		: "=a"(__ret) : "a"(n), "D"(a1), "c"(a2), "d"(a3), "S"(a4) : "memory");
+	return __ret;
+}
+
+#if 0
+static inline long __syscall5(long n, long a1, long a2, long a3, long a4, long a5)
+{
+	unsigned long __ret;
+	__asm__ __volatile__ ("pushl %2 ; pushl %%ebx ; mov 4(%%esp),%%ebx ; int $128 ; popl %%ebx ; popl %%ecx"
+		: "=a"(__ret) : "a"(n), "g"(a1), "c"(a2), "d"(a3), "S"(a4), "D"(a5) : "memory");
+	return __ret;
+}
+#else
+static inline long __syscall5(long n, long a1, long a2, long a3, long a4, long a5)
+{
+	return (__syscall)(n, a1, a2, a3, a4, a5);
+}
+#endif
+
+static inline long __syscall6(long n, long a1, long a2, long a3, long a4, long a5, long a6)
+{
+	return (__syscall)(n, a1, a2, a3, a4, a5, a6);
+}
+
+#endif
+
+
+#define __SC_socket      1
+#define __SC_bind        2
+#define __SC_connect     3
+#define __SC_listen      4
+#define __SC_accept      5
+#define __SC_getsockname 6
+#define __SC_getpeername 7
+#define __SC_socketpair  8
+#define __SC_send        9
+#define __SC_recv        10
+#define __SC_sendto      11
+#define __SC_recvfrom    12
+#define __SC_shutdown    13
+#define __SC_setsockopt  14
+#define __SC_getsockopt  15
+#define __SC_sendmsg     16
+#define __SC_recvmsg     17
+#define __SC_accept4     18
+#define __SC_recvmmsg    19
+#define __SC_sendmmsg    20

arch/mips/bits/syscall.h

@@ -1,50 +1,3 @@
-#define __SYSCALL_LL_E(x) \
-((union { long long ll; long l[2]; }){ .ll = x }).l[0], \
-((union { long long ll; long l[2]; }){ .ll = x }).l[1]
-#define __SYSCALL_LL_O(x) 0, __SYSCALL_LL_E((x))
-
-#define __SYSCALL_SSLEN 16
-
-long (__syscall)(long, ...);
-
-static __inline long __syscall0(long n)
-{
-	return (__syscall)(n);
-}
-
-static __inline long __syscall1(long n, long a)
-{
-	return (__syscall)(n, a);
-}
-
-static __inline long __syscall2(long n, long a, long b)
-{
-	return (__syscall)(n, a, b);
-}
-
-static __inline long __syscall3(long n, long a, long b, long c)
-{
-	return (__syscall)(n, a, b, c);
-}
-
-static __inline long __syscall4(long n, long a, long b, long c, long d)
-{
-	return (__syscall)(n, a, b, c, d);
-}
-
-static __inline long __syscall5(long n, long a, long b, long c, long d, long e)
-{
-	return (__syscall)(n, a, b, c, d, e);
-}
-
-static __inline long __syscall6(long n, long a, long b, long c, long d, long e, long f)
-{
-	return (__syscall)(n, a, b, c, d, e, f);
-}
-
-#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)
-
 #define __NR_syscall                 4000
 #define __NR_exit                    4001
 #define __NR_fork                    4002
@@ -416,26 +369,6 @@ static __inline long __syscall6(long n, long a, long b, long c, long d, long e,
 #define __NR_process_vm_readv        4345
 #define __NR_process_vm_writev       4346
 
-/* fixup legacy 32-bit-vs-lfs64 junk */
-#undef __NR_fcntl
-#undef __NR_getdents
-#undef __NR_ftruncate
-#undef __NR_truncate
-#undef __NR_stat
-#undef __NR_fstat
-#undef __NR_lstat
-#undef __NR_statfs
-#undef __NR_fstatfs
-#define __NR_fcntl __NR_fcntl64
-#define __NR_getdents __NR_getdents64
-#define __NR_ftruncate __NR_ftruncate64
-#define __NR_truncate __NR_truncate64
-#define __NR_stat __NR_stat64
-#define __NR_fstat __NR_fstat64
-#define __NR_lstat __NR_lstat64
-#define __NR_statfs __NR_statfs64
-#define __NR_fstatfs __NR_fstatfs64
-
 
 /* Repeated with SYS_ prefix */
 #define SYS_syscall                 4000
@@ -808,23 +741,3 @@ static __inline long __syscall6(long n, long a, long b, long c, long d, long e,
 #define SYS_setns                   4344
 #define SYS_process_vm_readv        4345
 #define SYS_process_vm_writev       4346
-
-/* fixup legacy 32-bit-vs-lfs64 junk */
-#undef SYS_fcntl
-#undef SYS_getdents
-#undef SYS_ftruncate
-#undef SYS_truncate
-#undef SYS_stat
-#undef SYS_fstat
-#undef SYS_lstat
-#undef SYS_statfs
-#undef SYS_fstatfs
-#define SYS_fcntl SYS_fcntl64
-#define SYS_getdents SYS_getdents64
-#define SYS_ftruncate SYS_ftruncate64
-#define SYS_truncate SYS_truncate64
-#define SYS_stat SYS_stat64
-#define SYS_fstat SYS_fstat64
-#define SYS_lstat SYS_lstat64
-#define SYS_statfs SYS_statfs64
-#define SYS_fstatfs SYS_fstatfs64

arch/mips/syscall_arch.h

@@ -0,0 +1,41 @@
+#define __SYSCALL_LL_E(x) \
+((union { long long ll; long l[2]; }){ .ll = x }).l[0], \
+((union { long long ll; long l[2]; }){ .ll = x }).l[1]
+#define __SYSCALL_LL_O(x) 0, __SYSCALL_LL_E((x))
+
+#define __SYSCALL_SSLEN 16
+
+static inline long __syscall0(long n)
+{
+	return (__syscall)(n);
+}
+
+static inline long __syscall1(long n, long a)
+{
+	return (__syscall)(n, a);
+}
+
+static inline long __syscall2(long n, long a, long b)
+{
+	return (__syscall)(n, a, b);
+}
+
+static inline long __syscall3(long n, long a, long b, long c)
+{
+	return (__syscall)(n, a, b, c);
+}
+
+static inline long __syscall4(long n, long a, long b, long c, long d)
+{
+	return (__syscall)(n, a, b, c, d);
+}
+
+static inline long __syscall5(long n, long a, long b, long c, long d, long e)
+{
+	return (__syscall)(n, a, b, c, d, e);
+}
+
+static inline long __syscall6(long n, long a, long b, long c, long d, long e, long f)
+{
+	return (__syscall)(n, a, b, c, d, e, f);
+}

arch/x86_64/bits/syscall.h

@@ -1,71 +1,3 @@
-#define __SYSCALL_LL_E(x) (x)
-#define __SYSCALL_LL_O(x) (x)
-
-#define __SYSCALL_SSLEN 8
-
-static __inline long __syscall0(long __n)
-{
-	unsigned long __ret;
-	__asm__ __volatile__ ("syscall" : "=a"(__ret) : "a"(__n) : "rcx", "r11", "memory");
-	return __ret;
-}
-
-static __inline long __syscall1(long __n, long __a1)
-{
-	unsigned long __ret;
-	__asm__ __volatile__ ("syscall" : "=a"(__ret) : "a"(__n), "D"(__a1) : "rcx", "r11", "memory");
-	return __ret;
-}
-
-static __inline long __syscall2(long __n, long __a1, long __a2)
-{
-	unsigned long __ret;
-	__asm__ __volatile__ ("syscall" : "=a"(__ret) : "a"(__n), "D"(__a1), "S"(__a2)
-						  : "rcx", "r11", "memory");
-	return __ret;
-}
-
-static __inline long __syscall3(long __n, long __a1, long __a2, long __a3)
-{
-	unsigned long __ret;
-	__asm__ __volatile__ ("syscall" : "=a"(__ret) : "a"(__n), "D"(__a1), "S"(__a2),
-						  "d"(__a3) : "rcx", "r11", "memory");
-	return __ret;
-}
-
-static __inline long __syscall4(long __n, long __a1, long __a2, long __a3, long __a4)
-{
-	unsigned long __ret;
-	register long __r10 __asm__("r10") = __a4;
-	__asm__ __volatile__ ("syscall" : "=a"(__ret) : "a"(__n), "D"(__a1), "S"(__a2),
-						  "d"(__a3), "r"(__r10): "rcx", "r11", "memory");
-	return __ret;
-}
-
-static __inline long __syscall5(long __n, long __a1, long __a2, long __a3, long __a4, long __a5)
-{
-	unsigned long __ret;
-	register long __r10 __asm__("r10") = __a4;
-	register long __r8 __asm__("r8") = __a5;
-	__asm__ __volatile__ ("syscall" : "=a"(__ret) : "a"(__n), "D"(__a1), "S"(__a2),
-						  "d"(__a3), "r"(__r10), "r"(__r8) : "rcx", "r11", "memory");
-	return __ret;
-}
-
-static __inline long __syscall6(long __n, long __a1, long __a2, long __a3, long __a4, long __a5, long __a6)
-{
-	unsigned long __ret;
-	register long __r10 __asm__("r10") = __a4;
-	register long __r8 __asm__("r8") = __a5;
-	register long __r9 __asm__("r9") = __a6;
-	__asm__ __volatile__ ("syscall" : "=a"(__ret) : "a"(__n), "D"(__a1), "S"(__a2),
-						  "d"(__a3), "r"(__r10), "r"(__r8), "r"(__r9) : "rcx", "r11", "memory");
-	return __ret;
-}
-
-#define __socketcall(nm,a,b,c,d,e,f) syscall(__NR_##nm, a, b, c, d, e, f)
-#define __socketcall_cp(nm,a,b,c,d,e,f) syscall_cp(__NR_##nm, a, b, c, d, e, f)
-
 #define __NR_read				0
 #define __NR_write				1
 #define __NR_open				2

arch/x86_64/syscall_arch.h

@@ -0,0 +1,64 @@
+#define __SYSCALL_LL_E(x) (x)
+#define __SYSCALL_LL_O(x) (x)
+
+#define __SYSCALL_SSLEN 8
+
+static __inline long __syscall0(long n)
+{
+	unsigned long ret;
+	__asm__ __volatile__ ("syscall" : "=a"(ret) : "a"(n) : "rcx", "r11", "memory");
+	return ret;
+}
+
+static __inline long __syscall1(long n, long a1)
+{
+	unsigned long ret;
+	__asm__ __volatile__ ("syscall" : "=a"(ret) : "a"(n), "D"(a1) : "rcx", "r11", "memory");
+	return ret;
+}
+
+static __inline long __syscall2(long n, long a1, long a2)
+{
+	unsigned long ret;
+	__asm__ __volatile__ ("syscall" : "=a"(ret) : "a"(n), "D"(a1), "S"(a2)
+						  : "rcx", "r11", "memory");
+	return ret;
+}
+
+static __inline long __syscall3(long n, long a1, long a2, long a3)
+{
+	unsigned long ret;
+	__asm__ __volatile__ ("syscall" : "=a"(ret) : "a"(n), "D"(a1), "S"(a2),
+						  "d"(a3) : "rcx", "r11", "memory");
+	return ret;
+}
+
+static __inline long __syscall4(long n, long a1, long a2, long a3, long a4)
+{
+	unsigned long ret;
+	register long r10 __asm__("r10") = a4;
+	__asm__ __volatile__ ("syscall" : "=a"(ret) : "a"(n), "D"(a1), "S"(a2),
+						  "d"(a3), "r"(r10): "rcx", "r11", "memory");
+	return ret;
+}
+
+static __inline long __syscall5(long n, long a1, long a2, long a3, long a4, long a5)
+{
+	unsigned long ret;
+	register long r10 __asm__("r10") = a4;
+	register long r8 __asm__("r8") = a5;
+	__asm__ __volatile__ ("syscall" : "=a"(ret) : "a"(n), "D"(a1), "S"(a2),
+						  "d"(a3), "r"(r10), "r"(r8) : "rcx", "r11", "memory");
+	return ret;
+}
+
+static __inline long __syscall6(long n, long a1, long a2, long a3, long a4, long a5, long a6)
+{
+	unsigned long ret;
+	register long r10 __asm__("r10") = a4;
+	register long r8 __asm__("r8") = a5;
+	register long r9 __asm__("r9") = a6;
+	__asm__ __volatile__ ("syscall" : "=a"(ret) : "a"(n), "D"(a1), "S"(a2),
+						  "d"(a3), "r"(r10), "r"(r8), "r"(r9) : "rcx", "r11", "memory");
+	return ret;
+}

include/sys/syscall.h

@@ -6,28 +6,10 @@ extern "C" {
 
 #include <features.h>
 
-long __syscall_ret(unsigned long);
-long __syscall(long, ...);
 long syscall(long, ...);
 
 #include <bits/syscall.h>
 
-#define __syscall1(n,a) __syscall1(n,(long)(a))
-#define __syscall2(n,a,b) __syscall2(n,(long)(a),(long)(b))
-#define __syscall3(n,a,b,c) __syscall3(n,(long)(a),(long)(b),(long)(c))
-#define __syscall4(n,a,b,c,d) __syscall4(n,(long)(a),(long)(b),(long)(c),(long)(d))
-#define __syscall5(n,a,b,c,d,e) __syscall5(n,(long)(a),(long)(b),(long)(c),(long)(d),(long)(e))
-#define __syscall6(n,a,b,c,d,e,f) __syscall6(n,(long)(a),(long)(b),(long)(c),(long)(d),(long)(e),(long)(f))
-
-#define __SYSCALL_NARGS_X(a,b,c,d,e,f,g,n,...) n
-#define __SYSCALL_NARGS(...) __SYSCALL_NARGS_X(__VA_ARGS__,6,5,4,3,2,1,0)
-#define __SYSCALL_CONCAT_X(a,b) a##b
-#define __SYSCALL_CONCAT(a,b) __SYSCALL_CONCAT_X(a,b)
-#define __SYSCALL_DISP(b,...) __SYSCALL_CONCAT(b,__SYSCALL_NARGS(__VA_ARGS__))(__VA_ARGS__)
-
-#define __syscall(...) __SYSCALL_DISP(__syscall,__VA_ARGS__)
-#define syscall(...) __syscall_ret(__syscall(__VA_ARGS__))
-
 #ifdef __cplusplus
 }
 #endif

src/internal/syscall.h

@@ -1,9 +1,28 @@
-#ifndef _SYSCALL_H
-#define _SYSCALL_H
+#ifndef _INTERNAL_SYSCALL_H
+#define _INTERNAL_SYSCALL_H
 
-/* This header is mostly useless leftover wrapper cruft */
+long __syscall_ret(unsigned long);
+long __syscall(long, ...);
+long __syscall_cp(long, long, long, long, long, long, long);
 
 #include <sys/syscall.h>
+#include "syscall_arch.h"
+
+#define __syscall1(n,a) __syscall1(n,(long)(a))
+#define __syscall2(n,a,b) __syscall2(n,(long)(a),(long)(b))
+#define __syscall3(n,a,b,c) __syscall3(n,(long)(a),(long)(b),(long)(c))
+#define __syscall4(n,a,b,c,d) __syscall4(n,(long)(a),(long)(b),(long)(c),(long)(d))
+#define __syscall5(n,a,b,c,d,e) __syscall5(n,(long)(a),(long)(b),(long)(c),(long)(d),(long)(e))
+#define __syscall6(n,a,b,c,d,e,f) __syscall6(n,(long)(a),(long)(b),(long)(c),(long)(d),(long)(e),(long)(f))
+
+#define __SYSCALL_NARGS_X(a,b,c,d,e,f,g,n,...) n
+#define __SYSCALL_NARGS(...) __SYSCALL_NARGS_X(__VA_ARGS__,6,5,4,3,2,1,0)
+#define __SYSCALL_CONCAT_X(a,b) a##b
+#define __SYSCALL_CONCAT(a,b) __SYSCALL_CONCAT_X(a,b)
+#define __SYSCALL_DISP(b,...) __SYSCALL_CONCAT(b,__SYSCALL_NARGS(__VA_ARGS__))(__VA_ARGS__)
+
+#define __syscall(...) __SYSCALL_DISP(__syscall,__VA_ARGS__)
+#define syscall(...) __syscall_ret(__syscall(__VA_ARGS__))
 
 #define socketcall __socketcall
 #define socketcall_cp __socketcall_cp
@@ -16,9 +35,123 @@
 #define __syscall_cp5(n,a,b,c,d,e) (__syscall_cp)(n,(long)(a),(long)(b),(long)(c),(long)(d),(long)(e),0)
 #define __syscall_cp6(n,a,b,c,d,e,f) (__syscall_cp)(n,(long)(a),(long)(b),(long)(c),(long)(d),(long)(e),(long)(f))
 
-long (__syscall_cp)(long, long, long, long, long, long, long);
-
 #define __syscall_cp(...) __SYSCALL_DISP(__syscall_cp,__VA_ARGS__)
 #define syscall_cp(...) __syscall_ret(__syscall_cp(__VA_ARGS__))
 
+#ifdef SYS_socket
+#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
+
+/* fixup legacy 16-bit junk */
+
+#ifdef SYS_getuid32
+#undef SYS_lchown
+#undef SYS_getuid
+#undef SYS_getgid
+#undef SYS_geteuid
+#undef SYS_getegid
+#undef SYS_setreuid
+#undef SYS_setregid
+#undef SYS_getgroups
+#undef SYS_setgroups
+#undef SYS_fchown
+#undef SYS_setresuid
+#undef SYS_getresuid
+#undef SYS_setresgid
+#undef SYS_getresgid
+#undef SYS_chown
+#undef SYS_setuid
+#undef SYS_setgid
+#undef SYS_setfsuid
+#undef SYS_setfsgid
+#define SYS_lchown SYS_lchown32
+#define SYS_getuid SYS_getuid32
+#define SYS_getgid SYS_getgid32
+#define SYS_geteuid SYS_geteuid32
+#define SYS_getegid SYS_getegid32
+#define SYS_setreuid SYS_setreuid32
+#define SYS_setregid SYS_setregid32
+#define SYS_getgroups SYS_getgroups32
+#define SYS_setgroups SYS_setgroups32
+#define SYS_fchown SYS_fchown32
+#define SYS_setresuid SYS_setresuid32
+#define SYS_getresuid SYS_getresuid32
+#define SYS_setresgid SYS_setresgid32
+#define SYS_getresgid SYS_getresgid32
+#define SYS_chown SYS_chown32
+#define SYS_setuid SYS_setuid32
+#define SYS_setgid SYS_setgid32
+#define SYS_setfsuid SYS_setfsuid32
+#define SYS_setfsgid SYS_setfsgid32
+#endif
+
+
+/* fixup legacy 32-bit-vs-lfs64 junk */
+
+#ifdef SYS_fcntl64
+#undef SYS_fcntl
+#define SYS_fcntl SYS_fcntl64
+#endif
+
+#ifdef SYS_getdents64
+#undef SYS_getdents
+#define SYS_getdents SYS_getdents64
+#endif
+
+#ifdef SYS_ftruncate64
+#undef SYS_ftruncate
+#undef SYS_truncate
+#define SYS_ftruncate SYS_ftruncate64
+#define SYS_truncate SYS_truncate64
+#endif
+
+#ifdef SYS_stat64
+#undef SYS_stat
+#undef SYS_fstat
+#undef SYS_lstat
+#undef SYS_statfs
+#undef SYS_fstatfs
+#define SYS_stat SYS_stat64
+#define SYS_fstat SYS_fstat64
+#define SYS_lstat SYS_lstat64
+#define SYS_statfs SYS_statfs64
+#define SYS_fstatfs SYS_fstatfs64
+#endif
+
+#if defined(SYS_newfstatat)
+#undef SYS_fstatat
+#define SYS_fstatat SYS_newfstatat
+#elif defined(SYS_fstatat64)
+#undef SYS_fstatat
+#define SYS_fstatat SYS_fstatat64
+#endif
+
+#ifdef SYS_ugetrlimit
+#undef SYS_getrlimit
+#define SYS_getrlimit SYS_ugetrlimit
+#endif
+
+#ifdef SYS__newselect
+#undef SYS_select
+#define SYS_select SYS__newselect
+#endif
+
+#ifdef SYS_pread64
+#undef SYS_pread
+#undef SYS_pwrite
+#define SYS_pread SYS_pread64
+#define SYS_pwrite SYS_pwrite64
+#endif
+
+#ifdef SYS_fadvise64_64
+#undef SYS_fadvise
+#define SYS_fadvise SYS_fadvise64_64
+#endif
+
 #endif