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Hi Here's a patch for an INLINE_SYSCALL() implementation for the ia64. It seems to work fine here. Jes 2001-03-13 Jes Sorensen <jes@linuxcare.com> * sysdeps/unix/sysv/linux/ia64/sysdep.h (INLINE_SYSCALL): ia64 implementation, partly by Richard Henderson. --- /home/jes/cygnus/libc-2.2-110301/sysdeps/unix/sysv/linux/ia64/sysdep.h Fri Sep 29 12:43:57 2000 +++ sysdeps/unix/sysv/linux/ia64/sysdep.h Tue Mar 13 15:45:04 2001 @@ -101,9 +101,64 @@ /* Define a macro which expands into the inline wrapper code for a system call. */ -#if 0 #undef INLINE_SYSCALL -#define INLINE_SYSCALL(name, nr, args...) __##name (args) -#endif +#define INLINE_SYSCALL(name, nr, args...) \ + ({ \ + register long _r8 asm ("r8"); \ + register long _r10 asm ("r10"); \ + register long _r15 asm ("r15") = __NR_##name; \ + LOAD_ARGS_##nr (args); \ + asm volatile ("break %3" \ + : "=r" (_r8), "=r" (_r10), "=r"(_r15) \ + : "i" (__BREAK_SYSCALL), \ + "r" (_r15) ASM_ARGS_##nr \ + : "memory" ASM_CLOBBERS_##nr); \ + if (_r10 == (long) -1) \ + { \ + __set_errno (-_r8); \ + _r8 = (long) -1; \ + } \ + (int) _r8; }) + +#define LOAD_ARGS_0() do { } while (0) +#define LOAD_ARGS_1(out0) \ + register long _out0 asm ("out0") = (long) (out0); \ + LOAD_ARGS_0 () +#define LOAD_ARGS_2(out0, out1) \ + register long _out1 asm ("out1") = (long) (out1); \ + LOAD_ARGS_1 (out0) +#define LOAD_ARGS_3(out0, out1, out2) \ + register long _out2 asm ("out2") = (long) (out2); \ + LOAD_ARGS_2 (out0, out1) +#define LOAD_ARGS_4(out0, out1, out2, out3) \ + register long _out3 asm ("out3") = (long) (out3); \ + LOAD_ARGS_3 (out0, out1, out2) +#define LOAD_ARGS_5(out0, out1, out2, out3, out4) \ + register long _out4 asm ("out4") = (long) (out4); \ + LOAD_ARGS_4 (out0, out1, out2, out3) + +#define ASM_ARGS_0 +#define ASM_ARGS_1 ASM_ARGS_0, "r" (_out0) +#define ASM_ARGS_2 ASM_ARGS_1, "r" (_out1) +#define ASM_ARGS_3 ASM_ARGS_2, "r" (_out2) +#define ASM_ARGS_4 ASM_ARGS_3, "r" (_out3) +#define ASM_ARGS_5 ASM_ARGS_4, "r" (_out4) + +#define ASM_CLOBBERS_0 ASM_CLOBBERS_1, "out0" +#define ASM_CLOBBERS_1 ASM_CLOBBERS_2, "out1" +#define ASM_CLOBBERS_2 ASM_CLOBBERS_3, "out2" +#define ASM_CLOBBERS_3 ASM_CLOBBERS_4, "out3" +#define ASM_CLOBBERS_4 ASM_CLOBBERS_5, "out4" +#define ASM_CLOBBERS_5 , "out5", "out6", "out7", \ + /* Non-stacked integer registers, minus r8, r10, r15. */ \ + "r2", "r3", "r9", "r11", "r12", "r13", "r14", "r16", "r17", "r18", \ + "r19", "r20", "r21", "r22", "r23", "r24", "r25", "r26", "r27", \ + "r28", "r29", "r30", "r31", \ + /* Predicate registers. */ \ + "p6", "p7", "p8", "p9", "p10", "p11", "p12", "p13", "p14", "p15", \ + /* Non-rotating fp registers. */ \ + "f6", "f7", "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", \ + /* Branch registers. */ \ + "b6", "b7" #endif /* not __ASSEMBLER__ */
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