syscall.sh / nios2 / signalfd4
signalfd4
create a file descriptor for accepting signals
sys_signalfd4(int ufd, sigset_t *user_mask, size_t sizemask, int flags)| number | 74 (0x4a) |
|---|---|
| abi | common |
| entry point | sys_signalfd4 |
| since | Linux 3.19 |
| man page | signalfd4(2) |
| source | elixir.bootlin.com |
Registers
| register | value |
|---|---|
r2 | 74, the syscall number |
r4 | int ufd |
r5 | sigset_t *user_mask |
r6 | size_t sizemask |
r7 | int flags |
r2 | the return value |
Then run trap to enter the kernel.
Same syscall on other architectures
- x64 289
- x86 327
- arm64 74
- arm 355
- riscv64 74
- x32 1073742113
- loongarch64 74
- ppc64 313
- ppc 313
- s390x 322
- mips64 5283
- mipsn32 6287
- mipso32 4324
- alpha 484
- arc 74
- csky 74
- hexagon 74
- m68k 323
- microblaze 339
- openrisc 74
- parisc 309
- sh 327
- sparc 317
- sparc64 317
- xtensa 309
Get this as JSON: https://api.syscall.sh/v2/syscalls/nios2/signalfd4