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linux: add aarch64_ilp32 support.

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This patch adds aarch64 (arm64) ILP32 support by using
the proper syscalls for sys_fcntl(), sys_fstat(), sys_lseek()
and sys_mmap().

Signed-off-by: Christoph Müllner <christophm30@gmail.com>
This commit is contained in:
Christoph Müllner 2018-04-07 09:00:09 +02:00 committed by Aliaksey Kandratsenka
parent 05dff09663
commit 0a66dd3a6a
1 changed files with 37 additions and 7 deletions
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44
src/base/linux_syscall_support.h
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@ -2221,17 +2221,23 @@ struct kernel_stat {
LSS_REG(0, arg1); LSS_BODY(type, name, "r"(__x0)); \
}
#undef _syscall2
#define _syscall2(type, name, type1, arg1, type2, arg2) \
#define _syscall2_long(type, name, svc, type1, arg1, type2, arg2) \
type LSS_NAME(name)(type1 arg1, type2 arg2) { \
LSS_REG(0, arg1); LSS_REG(1, arg2); \
LSS_BODY(type, name, "r"(__x0), "r"(__x1)); \
LSS_BODY(type, svc, "r"(__x0), "r"(__x1)); \
}
#define _syscall2(type, name, type1, arg1, type2, arg2) \
_syscall2_long(type, name, name, type1, arg1, type2, arg2)
#undef _syscall3
#define _syscall3(type, name, type1, arg1, type2, arg2, type3, arg3) \
#define _syscall3_long(type, name, svc, type1, arg1, type2, arg2, \
type3, arg3) \
type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3) { \
LSS_REG(0, arg1); LSS_REG(1, arg2); LSS_REG(2, arg3); \
LSS_BODY(type, name, "r"(__x0), "r"(__x1), "r"(__x2)); \
LSS_BODY(type, svc, "r"(__x0), "r"(__x1), "r"(__x2)); \
}
#define _syscall3(type, name, type1, arg1, type2, arg2, type3, arg3) \
_syscall3_long(type, name, name, type1, arg1, type2, arg2, \
type3, arg3)
#undef _syscall4
#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4) { \
@ -2250,15 +2256,19 @@ struct kernel_stat {
"r"(__x4)); \
}
#undef _syscall6
#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
type5,arg5,type6,arg6) \
#define _syscall6_long(type,name,svc,type1,arg1,type2,arg2,type3,arg3, \
type4,arg4,type5,arg5,type6,arg6) \
type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \
type5 arg5, type6 arg6) { \
LSS_REG(0, arg1); LSS_REG(1, arg2); LSS_REG(2, arg3); \
LSS_REG(3, arg4); LSS_REG(4, arg5); LSS_REG(5, arg6); \
LSS_BODY(type, name, "r"(__x0), "r"(__x1), "x"(__x2), "r"(__x3), \
LSS_BODY(type, svc, "r"(__x0), "r"(__x1), "x"(__x2), "r"(__x3), \
"r"(__x4), "r"(__x5)); \
}
#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
type5,arg5,type6,arg6) \
_syscall6_long(type,name,name,type1,arg1,type2,arg2,type3,arg3, \
type4,arg4,type5,arg5,type6,arg6)
/* clone function adapted from glibc 2.18 clone.S */
LSS_INLINE int LSS_NAME(clone)(int (*fn)(void *), void *child_stack,
int flags, void *arg, int *parent_tidptr,
@ -2456,10 +2466,22 @@ struct kernel_stat {
#define __NR__mremap __NR_mremap
LSS_INLINE _syscall1(int, close, int, f)
LSS_INLINE _syscall1(int, _exit, int, e)
#if defined(__aarch64__) && defined (__ILP32__)
/* aarch64_ilp32 uses fcntl64 for sys_fcntl() */
LSS_INLINE _syscall3_long(int, fcntl, fcntl64, int, f,
int, c, long, a)
#else
LSS_INLINE _syscall3(int, fcntl, int, f,
int, c, long, a)
#endif
#if defined(__aarch64__) && defined (__ILP32__)
/* aarch64_ilp32 uses fstat64 for sys_fstat() */
LSS_INLINE _syscall2_long(int, fstat, fstat64, int, f,
struct kernel_stat*, b)
#else
LSS_INLINE _syscall2(int, fstat, int, f,
struct kernel_stat*, b)
#endif
LSS_INLINE _syscall6(int, futex, int*, a,
int, o, int, v,
struct kernel_timespec*, t,
@ -2487,6 +2509,10 @@ struct kernel_stat {
_LSS_BODY(3, off_t, lseek, off_t, LSS_SYSCALL_ARG(f), (uint64_t)(o),
LSS_SYSCALL_ARG(w));
}
#elif defined(__aarch64__) && defined (__ILP32__)
/* aarch64_ilp32 uses llseek for sys_lseek() */
LSS_INLINE _syscall3_long(off_t, lseek, llseek, int, f,
off_t, o, int, w)
#else
LSS_INLINE _syscall3(off_t, lseek, int, f,
off_t, o, int, w)
@ -2777,6 +2803,10 @@ struct kernel_stat {
LSS_SYSCALL_ARG(p), LSS_SYSCALL_ARG(f),
LSS_SYSCALL_ARG(d), (uint64_t)(o));
}
#elif defined(__aarch64__) && defined (__ILP32__)
/* aarch64_ilp32 uses mmap2 for sys_mmap() */
LSS_INLINE _syscall6_long(void*, mmap, mmap2, void*, addr, size_t, length,
int, prot, int, flags, int, fd, int64_t, offset)
#else
/* Remaining 64-bit architectures. */
LSS_INLINE _syscall6(void*, mmap, void*, addr, size_t, length, int, prot,