syscall.sh / riscv64 / sigaltstack
sigaltstack
set and/or get signal stack context
sys_sigaltstack(const stack_t *uss, stack_t *uoss)| number | 132 (0x84) |
|---|---|
| abi | common |
| entry point | sys_sigaltstack |
| since | Linux 4.15 |
| man page | sigaltstack(2) |
| source | elixir.bootlin.com |
Registers
| register | value |
|---|---|
a7 | 132, the syscall number |
a0 | const stack_t *uss |
a1 | stack_t *uoss |
a0 | the return value |
Then run ecall to enter the kernel.
Same syscall on other architectures
- x64 131
- x86 186
- arm64 132
- arm 186
- x32 1073742349
- loongarch64 132
- ppc64 185
- ppc 185
- s390x 186
- mips64 5129
- mipsn32 6129
- mipso32 4206
- alpha 235
- arc 132
- csky 132
- hexagon 132
- m68k 186
- nios2 132
- openrisc 132
- parisc 166
- sh 186
- sparc 28
- sparc64 28
- xtensa 224
Get this as JSON: https://api.syscall.sh/v2/syscalls/riscv64/sigaltstack