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- Add AVR32 support to libaio
- Taken from OpenWRT repository.
- --- a/src/libaio.h
- +++ b/src/libaio.h
- @@ -107,6 +107,10 @@ typedef enum io_iocb_cmd {
- # else
- # error "neither mipseb nor mipsel?"
- # endif
- +#elif defined(__avr32__) /* big endian, 32 bits */
- +#define PADDED(x, y) unsigned y; x
- +#define PADDEDptr(x, y) unsigned y; x
- +#define PADDEDul(x, y) unsigned y; unsigned long x;
- #else
- #error endian?
- #endif
- --- /dev/null
- +++ b/src/syscall-avr32.h
- @@ -0,0 +1,91 @@
- +/*
- + * Copyright (C) 2007 Atmel Corporation
- + *
- + * This program is free software; you can redistribute it and/or modify
- + * it under the terms of the GNU General Public License version 2 as
- + * published by the Free Software Foundation.
- + */
- +
- +#define __NR_io_setup 197
- +#define __NR_io_destroy 198
- +#define __NR_io_getevents 199
- +#define __NR_io_submit 200
- +#define __NR_io_cancel 201
- +
- +#define io_syscall1(type,fname,sname,type1,arg1) \
- +type fname(type1 arg1) \
- +{ \
- + register long __r12 __asm__("r12") = (long)arg1; \
- + register long __res_r12 __asm__("r12"); \
- + register long __scno __asm__("r8") = __NR_##sname; \
- + __asm__ __volatile__("scall" \
- + : "=r"(__res_r12) \
- + : "0"(__r12), "r"(__scno) \
- + : "memory"); \
- + return (type) __res_r12; \
- +}
- +
- +#define io_syscall2(type,fname,sname,type1,arg1,type2,arg2) \
- +type fname(type1 arg1, type2 arg2) \
- +{ \
- + register long __r12 __asm__("r12") = (long)arg1; \
- + register long __r11 __asm__("r11") = (long)arg2; \
- + register long __res_r12 __asm__("r12"); \
- + register long __scno __asm__("r8") = __NR_##sname; \
- + __asm__ __volatile__("scall" \
- + : "=r"(__res_r12) \
- + : "0"(__r12), "r"(__r11), "r"(__scno) \
- + : "memory"); \
- + return (type) __res_r12; \
- +}
- +
- +#define io_syscall3(type,fname,sname,type1,arg1,type2,arg2,type3,arg3) \
- +type fname(type1 arg1, type2 arg2, type3 arg3) \
- +{ \
- + register long __r12 __asm__("r12") = (long)arg1; \
- + register long __r11 __asm__("r11") = (long)arg2; \
- + register long __r10 __asm__("r10") = (long)arg3; \
- + register long __res_r12 __asm__("r12"); \
- + register long __scno __asm__("r8") = __NR_##sname; \
- + __asm__ __volatile__("scall" \
- + : "=r"(__res_r12) \
- + : "0"(__r12), "r"(__r11), "r"(__r10), \
- + "r"(__scno) \
- + : "memory"); \
- + return (type) __res_r12; \
- +}
- +
- +#define io_syscall4(type,fname,sname,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
- +type fname(type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
- +{ \
- + register long __r12 __asm__("r12") = (long)arg1; \
- + register long __r11 __asm__("r11") = (long)arg2; \
- + register long __r10 __asm__("r10") = (long)arg3; \
- + register long __r9 __asm__("r9") = (long)arg4; \
- + register long __res_r12 __asm__("r12"); \
- + register long __scno __asm__("r8") = __NR_##sname; \
- + __asm__ __volatile__("scall" \
- + : "=r"(__res_r12) \
- + : "0"(__r12), "r"(__r11), "r"(__r10), \
- + "r"(__r9), "r"(__scno) \
- + : "memory"); \
- + return (type) __res_r12; \
- +}
- +
- +#define io_syscall5(type,fname,sname,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5) \
- +type fname(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5) \
- +{ \
- + register long __r12 __asm__("r12") = (long)arg1; \
- + register long __r11 __asm__("r11") = (long)arg2; \
- + register long __r10 __asm__("r10") = (long)arg3; \
- + register long __r9 __asm__("r9") = (long)arg4; \
- + register long __r5 __asm__("r5") = (long)arg5; \
- + register long __res_r12 __asm__("r12"); \
- + register long __scno __asm__("r8") = __NR_##sname; \
- + __asm__ __volatile__("scall" \
- + : "=r"(__res_r12) \
- + : "0"(__r12), "r"(__r11), "r"(__r10), \
- + "r"(__r9), "r"(__r5), "r"(__scno) \
- + : "memory"); \
- + return (type) __res_r12; \
- +}
- --- a/src/syscall.h
- +++ b/src/syscall.h
- @@ -32,6 +32,8 @@
- #include "syscall-parisc.h"
- #elif defined(__mips__)
- #include "syscall-mips.h"
- +#elif defined(__avr32__)
- +#include "syscall-avr32.h"
- #else
- #error "add syscall-arch.h"
- #endif
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