writev on metag
read or write data into multiple buffers
sys_writev(unsigned long fd, const struct iovec *vec, unsigned long vlen)| number | 66 (0x42) |
|---|---|
| abi | common |
| entry point | sys_writev |
| since | Linux 3.9 or earlier (3.9 is the first release scanned for metag) |
| man page | writev(2) |
| source | elixir.bootlin.com |
Registers
| register | value |
|---|---|
D1Re0 | 66, the syscall number |
D1Ar1 | unsigned long fd |
D0Ar2 | const struct iovec *vec |
D1Ar3 | unsigned long vlen |
D0Re0 | the return value |
Then run SWITCH #0x440001 to enter the kernel.
Values wider than one register are packed into consecutive arguments.
This architecture was removed from the Linux kernel in Linux 4.17. The newest release with a syscall table here is Linux 4.16. The other removed architectures live on the historical architectures page.
Same syscall on other architectures
- x64 20
- x86 146
- arm64 66
- arm 146
- riscv64 66
- ia32 146
- x32 1073742340
- loongarch64 66
- ppc64 146
- ppc 146
- s390x 146
- mips64 5019
- mipsn32 6019
- mipso32 4146
- alpha 121
- arc 66
- blackfin 146, removed in 4.17
- cris 146, removed in 4.17
- csky 66
- frv 146, removed in 4.17
- hexagon 66
- ia64 1147, removed in 6.7
- m32r 146, removed in 4.17
- m68k 146
- microblaze 146
- mn10300 146, removed in 4.17
- nds32 66, removed in 5.18
- nios2 66
- openrisc 66
- parisc 146
- score 66, removed in 4.17
- sh 146
- sparc 121
- sparc64 121
- tilegx 66, removed in 4.17
- tilepro 66, removed in 4.17
- xtensa 25
Get this as JSON: https://api.syscall.sh/v2/syscalls/metag/writev?kernel=all