syscall.sh / nios2 / sched_getaffinity
sched_getaffinity
set and get a thread's CPU affinity mask
sys_sched_getaffinity(pid_t pid, unsigned int len, unsigned long *user_mask_ptr)| number | 123 (0x7b) |
|---|---|
| abi | common |
| entry point | sys_sched_getaffinity |
| since | Linux 3.19 |
| man page | sched_getaffinity(2) |
| source | elixir.bootlin.com |
Registers
| register | value |
|---|---|
r2 | 123, the syscall number |
r4 | pid_t pid |
r5 | unsigned int len |
r6 | unsigned long *user_mask_ptr |
r2 | the return value |
Then run trap to enter the kernel.
Same syscall on other architectures
- x64 204
- x86 242
- arm64 123
- arm 242
- riscv64 123
- x32 1073742028
- loongarch64 123
- ppc64 223
- ppc 223
- s390x 240
- mips64 5196
- mipsn32 6196
- mipso32 4240
- alpha 396
- arc 123
- csky 123
- hexagon 123
- m68k 312
- microblaze 242
- openrisc 123
- parisc 212
- sh 242
- sparc 260
- sparc64 260
- xtensa 157
Get this as JSON: https://api.syscall.sh/v2/syscalls/nios2/sched_getaffinity