sched_getaffinity on score
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 3.7 or earlier (3.7 is the first release scanned for score) |
| man page | sched_getaffinity(2) |
| source | elixir.bootlin.com |
Registers
| register | value |
|---|---|
r27 | 123, the syscall number |
r4 | pid_t pid |
r5 | unsigned int len |
r6 | unsigned long *user_mask_ptr |
r4 | the return value |
Then run syscall to enter the kernel.
r7 is the error flag and r4 then holds the positive error number.
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 204
- x86 242
- arm64 123
- arm 242
- riscv64 123
- ia32 242
- x32 1073742028
- loongarch64 123
- ppc64 223
- ppc 223
- s390x 240
- mips64 5196
- mipsn32 6196
- mipso32 4240
- alpha 396
- arc 123
- blackfin 242, removed in 4.17
- cris 242, removed in 4.17
- csky 123
- frv 242, removed in 4.17
- hexagon 123
- ia64 1232, removed in 6.7
- m32r 242, removed in 4.17
- m68k 312
- metag 123, removed in 4.17
- microblaze 242
- mn10300 242, removed in 4.17
- nds32 123, removed in 5.18
- nios2 123
- openrisc 123
- parisc 212
- sh 242
- sparc 260
- sparc64 260
- tilegx 123, removed in 4.17
- tilepro 123, removed in 4.17
- xtensa 157
Get this as JSON: https://api.syscall.sh/v2/syscalls/score/sched_getaffinity?kernel=all