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-rw-r--r--arch/i386/syscall_arch.h2
-rw-r--r--arch/m68k/syscall_arch.h1
-rw-r--r--arch/microblaze/syscall_arch.h2
-rw-r--r--arch/mips/syscall_arch.h2
-rw-r--r--arch/s390x/syscall_arch.h2
-rw-r--r--src/internal/syscall.h32
6 files changed, 27 insertions, 14 deletions
diff --git a/arch/i386/syscall_arch.h b/arch/i386/syscall_arch.h
index 69642e57..f92b7aa9 100644
--- a/arch/i386/syscall_arch.h
+++ b/arch/i386/syscall_arch.h
@@ -87,5 +87,3 @@ static inline long __syscall6(long n, long a1, long a2, long a3, long a4, long a
#define VDSO_CGT32_VER "LINUX_2.6"
#define VDSO_CGT_SYM "__vdso_clock_gettime64"
#define VDSO_CGT_VER "LINUX_2.6"
-
-#define SYSCALL_USE_SOCKETCALL
diff --git a/arch/m68k/syscall_arch.h b/arch/m68k/syscall_arch.h
index af79c306..6a9d0ae8 100644
--- a/arch/m68k/syscall_arch.h
+++ b/arch/m68k/syscall_arch.h
@@ -87,5 +87,4 @@ static inline long __syscall6(long n, long a, long b, long c, long d, long e, lo
return d0;
}
-#define SYSCALL_USE_SOCKETCALL
#define SYSCALL_IPC_BROKEN_MODE
diff --git a/arch/microblaze/syscall_arch.h b/arch/microblaze/syscall_arch.h
index 169013f8..61d8248e 100644
--- a/arch/microblaze/syscall_arch.h
+++ b/arch/microblaze/syscall_arch.h
@@ -95,3 +95,5 @@ static inline long __syscall6(long n, long a, long b, long c, long d, long e, lo
}
#define SYSCALL_IPC_BROKEN_MODE
+
+#undef SYS_socketcall
diff --git a/arch/mips/syscall_arch.h b/arch/mips/syscall_arch.h
index 380a94b3..5b7c38de 100644
--- a/arch/mips/syscall_arch.h
+++ b/arch/mips/syscall_arch.h
@@ -149,3 +149,5 @@ static inline long __syscall7(long n, long a, long b, long c, long d, long e, lo
#define SO_SNDTIMEO_OLD 0x1005
#define SO_RCVTIMEO_OLD 0x1006
+
+#undef SYS_socketcall
diff --git a/arch/s390x/syscall_arch.h b/arch/s390x/syscall_arch.h
index afb99852..83cc9a27 100644
--- a/arch/s390x/syscall_arch.h
+++ b/arch/s390x/syscall_arch.h
@@ -72,5 +72,3 @@ static inline long __syscall6(long n, long a, long b, long c, long d, long e, lo
register long r7 __asm__("r7") = f;
__asm_syscall("+r"(r2), "r"(r1), "r"(r3), "r"(r4), "r"(r5), "r"(r6), "r"(r7));
}
-
-#define SYSCALL_USE_SOCKETCALL
diff --git a/src/internal/syscall.h b/src/internal/syscall.h
index 975a0031..d5f294d4 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, long a, long b, long c, long d, long e, long 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, \
+ (long)(a), (long)(b), (long)(c), (long)(d), (long)(e), (long)(f))
+#define __socketcall_cp(nm, a, b, c, d, e, f) __alt_socketcall(SYS_##nm, __SC_##nm, 1, \
+ (long)(a), (long)(b), (long)(c), (long)(d), (long)(e), (long)(f))
/* fixup legacy 16-bit junk */
@@ -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