syscall.sh / nios2 / readv
readv
read or write data into multiple buffers
sys_readv(unsigned long fd, const struct iovec *vec, unsigned long vlen)| number | 65 (0x41) |
|---|---|
| abi | common |
| entry point | sys_readv |
| since | Linux 3.19 |
| man page | readv(2) |
| source | elixir.bootlin.com |
Registers
| register | value |
|---|---|
r2 | 65, the syscall number |
r4 | unsigned long fd |
r5 | const struct iovec *vec |
r6 | unsigned long vlen |
r2 | the return value |
Then run trap to enter the kernel.
Same syscall on other architectures
- x64 19
- x86 145
- arm64 65
- arm 145
- riscv64 65
- x32 1073742339
- loongarch64 65
- ppc64 145
- ppc 145
- s390x 145
- mips64 5018
- mipsn32 6018
- mipso32 4145
- alpha 120
- arc 65
- csky 65
- hexagon 65
- m68k 145
- microblaze 145
- openrisc 65
- parisc 145
- sh 145
- sparc 120
- sparc64 120
- xtensa 24
Get this as JSON: https://api.syscall.sh/v2/syscalls/nios2/readv