syscall.sh / nios2 / mmap2
mmap2
map files or devices into memory
sys_mmap2(unsigned long addr, unsigned long len, unsigned long prot, unsigned long flags, unsigned long fd, unsigned long pgoff)| number | 222 (0xde) |
|---|---|
| abi | 32 |
| entry point | sys_mmap2 |
| since | Linux 3.19 |
| man page | mmap2(2) |
| source | elixir.bootlin.com |
Registers
| register | value |
|---|---|
r2 | 222, the syscall number |
r4 | unsigned long addr |
r5 | unsigned long len |
r6 | unsigned long prot |
r7 | unsigned long flags |
r8 | unsigned long fd |
r9 | unsigned long pgoff |
r2 | the return value |
Then run trap to enter the kernel.
Same syscall on other architectures
- x86 192
- arm 192
- ppc 192
- mipso32 4210
- arc 222
- csky 222
- hexagon 222
- m68k 192
- microblaze 192
- openrisc 222
- parisc 89
- sh 192
- sparc 56
- xtensa 80
Get this as JSON: https://api.syscall.sh/v2/syscalls/nios2/mmap2