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- // SPDX-License-Identifier: GPL-2.0-only
- #define __SYSCALL_COMPAT
- #include <linux/compat.h>
- #include <linux/syscalls.h>
- #include <asm/cacheflush.h>
- #include <asm-generic/mman-common.h>
- SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
- unsigned long, prot, unsigned long, flags,
- unsigned long, fd, unsigned long, offset)
- {
- if ((prot & PROT_WRITE) && (prot & PROT_EXEC))
- if (unlikely(!(prot & PROT_READ)))
- return -EINVAL;
- return ksys_mmap_pgoff(addr, len, prot, flags, fd, offset);
- }
- #define arg_u32p(name) u32, name##_lo, u32, name##_hi
- #define arg_u64(name) (((u64)name##_hi << 32) | \
- ((u64)name##_lo & 0xffffffff))
- COMPAT_SYSCALL_DEFINE3(truncate64, const char __user *, pathname,
- arg_u32p(length))
- {
- return ksys_truncate(pathname, arg_u64(length));
- }
- COMPAT_SYSCALL_DEFINE3(ftruncate64, unsigned int, fd, arg_u32p(length))
- {
- return ksys_ftruncate(fd, arg_u64(length));
- }
- COMPAT_SYSCALL_DEFINE6(fallocate, int, fd, int, mode,
- arg_u32p(offset), arg_u32p(len))
- {
- return ksys_fallocate(fd, mode, arg_u64(offset), arg_u64(len));
- }
- COMPAT_SYSCALL_DEFINE5(pread64, unsigned int, fd, char __user *, buf,
- size_t, count, arg_u32p(pos))
- {
- return ksys_pread64(fd, buf, count, arg_u64(pos));
- }
- COMPAT_SYSCALL_DEFINE5(pwrite64, unsigned int, fd,
- const char __user *, buf, size_t, count, arg_u32p(pos))
- {
- return ksys_pwrite64(fd, buf, count, arg_u64(pos));
- }
- COMPAT_SYSCALL_DEFINE6(sync_file_range, int, fd, arg_u32p(offset),
- arg_u32p(nbytes), unsigned int, flags)
- {
- return ksys_sync_file_range(fd, arg_u64(offset), arg_u64(nbytes),
- flags);
- }
- COMPAT_SYSCALL_DEFINE4(readahead, int, fd, arg_u32p(offset),
- size_t, count)
- {
- return ksys_readahead(fd, arg_u64(offset), count);
- }
- COMPAT_SYSCALL_DEFINE6(fadvise64_64, int, fd, arg_u32p(offset),
- arg_u32p(len), int, advice)
- {
- return ksys_fadvise64_64(fd, arg_u64(offset), arg_u64(len), advice);
- }
- #undef __SYSCALL
- #define __SYSCALL(nr, call) [nr] = (call),
- asmlinkage long compat_sys_rt_sigreturn(void);
- asmlinkage long sys_riscv_flush_icache(uintptr_t, uintptr_t, uintptr_t);
- const void *compat_sys_call_table[__NR_syscalls] = {
- [0 ... __NR_syscalls - 1] = sys_ni_syscall,
- #include <asm/unistd.h>
- };
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