syscall.sh / riscv64 / waitid
waitid
wait for process to change state
sys_waitid(int which, pid_t pid, struct siginfo *infop, int options, struct rusage *ru)| number | 95 (0x5f) |
|---|---|
| abi | common |
| entry point | sys_waitid |
| since | Linux 4.15 |
| man page | waitid(2) |
| source | elixir.bootlin.com |
Registers
| register | value |
|---|---|
a7 | 95, the syscall number |
a0 | int which |
a1 | pid_t pid |
a2 | struct siginfo *infop |
a3 | int options |
a4 | struct rusage *ru |
a0 | the return value |
Then run ecall to enter the kernel.
Same syscall on other architectures
- x64 247
- x86 284
- arm64 95
- arm 280
- x32 1073742353
- loongarch64 95
- ppc64 272
- ppc 272
- s390x 281
- mips64 5237
- mipsn32 6241
- mipso32 4278
- alpha 438
- arc 95
- csky 95
- hexagon 95
- m68k 277
- microblaze 284
- nios2 95
- openrisc 95
- parisc 235
- sh 284
- sparc 279
- sparc64 279
- xtensa 122
Get this as JSON: https://api.syscall.sh/v2/syscalls/riscv64/waitid