syscall.sh / x64 / semop
semop
System V semaphore operations
sys_semop(int semid, struct sembuf *sops, unsigned nsops)| number | 65 (0x41) |
|---|---|
| abi | common |
| entry point | sys_semop |
| since | Linux 3.3 |
| man page | semop(2) |
| source | elixir.bootlin.com |
Registers
| register | value |
|---|---|
rax | 65, the syscall number |
rdi | int semid |
rsi | struct sembuf *sops |
rdx | unsigned nsops |
rax | the return value |
Then run syscall to enter the kernel.
Same syscall on other architectures
- arm64 193
- arm 298
- riscv64 193
- x32 1073741889
- loongarch64 193
- mips64 5063
- mipsn32 6063
- alpha 206
- arc 193
- csky 193
- hexagon 193
- microblaze 330
- nios2 193
- openrisc 193
- parisc 185
- xtensa 163
Get this as JSON: https://api.syscall.sh/v2/syscalls/x64/semop