syscall.sh / riscv64 / shmget
shmget
allocates a System V shared memory segment
sys_shmget(key_t key, size_t size, int flag)| number | 194 (0xc2) |
|---|---|
| abi | common |
| entry point | sys_shmget |
| since | Linux 4.15 |
| man page | shmget(2) |
| source | elixir.bootlin.com |
Registers
| register | value |
|---|---|
a7 | 194, the syscall number |
a0 | key_t key |
a1 | size_t size |
a2 | int flag |
a0 | the return value |
Then run ecall to enter the kernel.
Same syscall on other architectures
- x64 29
- x86 395
- arm64 194
- arm 307
- x32 1073741853
- loongarch64 194
- ppc64 395
- ppc 395
- s390x 395
- mips64 5028
- mipsn32 6028
- mipso32 4395
- alpha 212
- arc 194
- csky 194
- hexagon 194
- m68k 395
- microblaze 338
- nios2 194
- openrisc 194
- parisc 194
- sh 395
- sparc 395
- sparc64 395
- xtensa 92
Get this as JSON: https://api.syscall.sh/v2/syscalls/riscv64/shmget