fchmod on metag
change permissions of a file
sys_fchmod(unsigned int fd, umode_t mode)
| number | 52 (0x34) |
|---|---|
| abi | common |
| entry point | sys_fchmod |
| since | Linux 3.9 or earlier (3.9 is the first release scanned for metag) |
| man page | fchmod(2) |
| source | elixir.bootlin.com |
Registers
| register | value |
|---|---|
D1Re0 | 52, the syscall number |
D1Ar1 | unsigned int fd |
D0Ar2 | umode_t mode |
D0Re0 | the return value |
Then run SWITCH #0x440001 to enter the kernel.
Values wider than one register are packed into consecutive arguments.
This architecture was removed from the Linux kernel in Linux 4.17. The newest release with a syscall table here is Linux 4.16. The other removed architectures live on the historical architectures page.
Same syscall on other architectures
- x64 91
- x86 94
- arm64 52
- arm 94
- riscv64 52
- ia32 94
- x32 1073741915
- loongarch64 52
- ppc64 94
- ppc 94
- s390x 94
- mips64 5089
- mipsn32 6089
- mipso32 4094
- alpha 124
- arc 52
- blackfin 94, removed in 4.17
- cris 94, removed in 4.17
- csky 52
- frv 94, removed in 4.17
- hexagon 52
- ia64 1099, removed in 6.7
- m32r 94, removed in 4.17
- m68k 94
- microblaze 94
- mn10300 94, removed in 4.17
- nds32 52, removed in 5.18
- nios2 52
- openrisc 52
- parisc 94
- score 52, removed in 4.17
- sh 94
- sparc 124
- sparc64 124
- tilegx 52, removed in 4.17
- tilepro 52, removed in 4.17
- xtensa 52
Get this as JSON: https://api.syscall.sh/v2/syscalls/metag/fchmod?kernel=all