| ... | ... | @@ -193,9 +193,29 @@ pub fn umount2(special: [*]const u8, flags: u32) usize { |
| 193 | 193 | |
| 194 | 194 | pub fn mmap(address: ?[*]u8, length: usize, prot: usize, flags: u32, fd: i32, offset: u64) usize { |
| 195 | 195 | if (@hasDecl(@This(), "SYS_mmap2")) { |
| 196 | | return syscall6(SYS_mmap2, @ptrToInt(address), length, prot, flags, @bitCast(usize, isize(fd)), @truncate(usize, offset / MMAP2_UNIT)); |
| 196 | // Make sure the offset is also specified in multiples of page size |
| 197 | if ((offset & (MMAP2_UNIT - 1)) != 0) |
| 198 | return @bitCast(usize, isize(-EINVAL)); |
| 199 | |
| 200 | return syscall6( |
| 201 | SYS_mmap2, |
| 202 | @ptrToInt(address), |
| 203 | length, |
| 204 | prot, |
| 205 | flags, |
| 206 | @bitCast(usize, isize(fd)), |
| 207 | @truncate(usize, offset / MMAP2_UNIT), |
| 208 | ); |
| 197 | 209 | } else { |
| 198 | | return syscall6(SYS_mmap, @ptrToInt(address), length, prot, flags, @bitCast(usize, isize(fd)), offset); |
| 210 | return syscall6( |
| 211 | SYS_mmap, |
| 212 | @ptrToInt(address), |
| 213 | length, |
| 214 | prot, |
| 215 | flags, |
| 216 | @bitCast(usize, isize(fd)), |
| 217 | offset, |
| 218 | ); |
| 199 | 219 | } |
| 200 | 220 | } |
| 201 | 221 | |
LemonBoy <thatlemon@gmail.com> 2019-09-27 18:18:38+02:00
lib