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[PATCH] remove kernel syscalls
The last thing we agreed on was to remove the macros entirely for 2.6.19, on all architectures. Unfortunately, I think nobody actually _did_ that, so they are still there. [akpm@osdl.org: x86_64 fix] Cc: David Woodhouse <dwmw2@infradead.org> Cc: Greg Schafer <gschafer@zip.com.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Arnd Bergmann
committed by
Linus Torvalds
Linus Torvalds
parent
28ec24e232
commit
f5738ceed4
@@ -347,148 +347,6 @@
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#ifdef __KERNEL__
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#define NR_syscalls 321
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#include <linux/err.h>
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/* user-visible error numbers are in the range -1 - -MAX_ERRNO:
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* see <asm-sh64/errno.h> */
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#define __syscall_return(type, res) \
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do { \
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/* Note: when returning from kernel the return value is in r9 \
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** This prevents conflicts between return value and arg1 \
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** when dispatching signal handler, in other words makes \
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** life easier in the system call epilogue (see entry.S) \
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*/ \
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register unsigned long __sr2 __asm__ ("r2") = res; \
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if ((unsigned long)(res) >= (unsigned long)(-MAX_ERRNO)) { \
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errno = -(res); \
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__sr2 = -1; \
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} \
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return (type) (__sr2); \
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} while (0)
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/* XXX - _foo needs to be __foo, while __NR_bar could be _NR_bar. */
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#define _syscall0(type,name) \
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type name(void) \
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{ \
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register unsigned long __sc0 __asm__ ("r9") = ((0x10 << 16) | __NR_##name); \
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__asm__ __volatile__ ("trapa %1 !\t\t\t" #name "()" \
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: "=r" (__sc0) \
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: "r" (__sc0) ); \
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__syscall_return(type,__sc0); \
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}
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/*
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* The apparent spurious "dummy" assembler comment is *needed*,
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* as without it, the compiler treats the arg<n> variables
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* as no longer live just before the asm. The compiler can
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* then optimize the storage into any registers it wishes.
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* The additional dummy statement forces the compiler to put
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* the arguments into the correct registers before the TRAPA.
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*/
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#define _syscall1(type,name,type1,arg1) \
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type name(type1 arg1) \
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{ \
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register unsigned long __sc0 __asm__ ("r9") = ((0x11 << 16) | __NR_##name); \
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register unsigned long __sc2 __asm__ ("r2") = (unsigned long) arg1; \
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__asm__ __volatile__ ("trapa %1 !\t\t\t" #name "(%2)" \
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: "=r" (__sc0) \
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: "r" (__sc0), "r" (__sc2)); \
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__asm__ __volatile__ ("!dummy %0 %1" \
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: \
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: "r" (__sc0), "r" (__sc2)); \
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__syscall_return(type,__sc0); \
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}
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#define _syscall2(type,name,type1,arg1,type2,arg2) \
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type name(type1 arg1,type2 arg2) \
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{ \
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register unsigned long __sc0 __asm__ ("r9") = ((0x12 << 16) | __NR_##name); \
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register unsigned long __sc2 __asm__ ("r2") = (unsigned long) arg1; \
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register unsigned long __sc3 __asm__ ("r3") = (unsigned long) arg2; \
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__asm__ __volatile__ ("trapa %1 !\t\t\t" #name "(%2,%3)" \
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: "=r" (__sc0) \
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: "r" (__sc0), "r" (__sc2), "r" (__sc3) ); \
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__asm__ __volatile__ ("!dummy %0 %1 %2" \
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: \
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: "r" (__sc0), "r" (__sc2), "r" (__sc3) ); \
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__syscall_return(type,__sc0); \
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}
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#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
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type name(type1 arg1,type2 arg2,type3 arg3) \
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{ \
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register unsigned long __sc0 __asm__ ("r9") = ((0x13 << 16) | __NR_##name); \
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register unsigned long __sc2 __asm__ ("r2") = (unsigned long) arg1; \
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register unsigned long __sc3 __asm__ ("r3") = (unsigned long) arg2; \
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register unsigned long __sc4 __asm__ ("r4") = (unsigned long) arg3; \
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__asm__ __volatile__ ("trapa %1 !\t\t\t" #name "(%2,%3,%4)" \
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: "=r" (__sc0) \
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: "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4) ); \
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__asm__ __volatile__ ("!dummy %0 %1 %2 %3" \
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: \
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: "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4) ); \
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__syscall_return(type,__sc0); \
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}
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#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
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type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
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{ \
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register unsigned long __sc0 __asm__ ("r9") = ((0x14 << 16) | __NR_##name); \
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register unsigned long __sc2 __asm__ ("r2") = (unsigned long) arg1; \
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register unsigned long __sc3 __asm__ ("r3") = (unsigned long) arg2; \
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register unsigned long __sc4 __asm__ ("r4") = (unsigned long) arg3; \
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register unsigned long __sc5 __asm__ ("r5") = (unsigned long) arg4; \
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__asm__ __volatile__ ("trapa %1 !\t\t\t" #name "(%2,%3,%4,%5)" \
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: "=r" (__sc0) \
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: "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4), "r" (__sc5) );\
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__asm__ __volatile__ ("!dummy %0 %1 %2 %3 %4" \
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: \
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: "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4), "r" (__sc5) );\
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__syscall_return(type,__sc0); \
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}
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#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5) \
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type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5) \
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{ \
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register unsigned long __sc0 __asm__ ("r9") = ((0x15 << 16) | __NR_##name); \
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register unsigned long __sc2 __asm__ ("r2") = (unsigned long) arg1; \
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register unsigned long __sc3 __asm__ ("r3") = (unsigned long) arg2; \
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register unsigned long __sc4 __asm__ ("r4") = (unsigned long) arg3; \
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register unsigned long __sc5 __asm__ ("r5") = (unsigned long) arg4; \
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register unsigned long __sc6 __asm__ ("r6") = (unsigned long) arg5; \
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__asm__ __volatile__ ("trapa %1 !\t\t\t" #name "(%2,%3,%4,%5,%6)" \
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: "=r" (__sc0) \
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: "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4), "r" (__sc5), \
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"r" (__sc6)); \
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__asm__ __volatile__ ("!dummy %0 %1 %2 %3 %4 %5" \
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: \
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: "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4), "r" (__sc5), \
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"r" (__sc6)); \
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__syscall_return(type,__sc0); \
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}
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#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5, type6, arg6) \
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type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5, type6 arg6) \
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{ \
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register unsigned long __sc0 __asm__ ("r9") = ((0x16 << 16) | __NR_##name); \
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register unsigned long __sc2 __asm__ ("r2") = (unsigned long) arg1; \
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register unsigned long __sc3 __asm__ ("r3") = (unsigned long) arg2; \
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register unsigned long __sc4 __asm__ ("r4") = (unsigned long) arg3; \
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register unsigned long __sc5 __asm__ ("r5") = (unsigned long) arg4; \
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register unsigned long __sc6 __asm__ ("r6") = (unsigned long) arg5; \
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register unsigned long __sc7 __asm__ ("r7") = (unsigned long) arg6; \
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__asm__ __volatile__ ("trapa %1 !\t\t\t" #name "(%2,%3,%4,%5,%6,%7)" \
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: "=r" (__sc0) \
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: "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4), "r" (__sc5), \
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"r" (__sc6), "r" (__sc7)); \
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__asm__ __volatile__ ("!dummy %0 %1 %2 %3 %4 %5 %6" \
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: \
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: "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4), "r" (__sc5), \
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"r" (__sc6), "r" (__sc7)); \
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__syscall_return(type,__sc0); \
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}
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#define __ARCH_WANT_IPC_PARSE_VERSION
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#define __ARCH_WANT_OLD_READDIR
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