dup2 on blackfin
duplicate a file descriptor
sys_dup2(unsigned int oldfd, unsigned int newfd)| number | 63 (0x3f) |
|---|---|
| abi | common |
| entry point | sys_dup2 |
| since | Linux 3.3 or earlier (3.3 is the first release scanned for blackfin) |
| man page | dup2(2) |
| source | elixir.bootlin.com |
Registers
| register | value |
|---|---|
P0 | 63, the syscall number |
R0 | unsigned int oldfd |
R1 | unsigned int newfd |
R0 | the return value |
Then run excpt 0 to enter the kernel.
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 33
- x86 63
- arm 63
- ia32 63
- x32 1073741857
- ppc64 63
- ppc 63
- s390x 63
- mips64 5032
- mipsn32 6032
- mipso32 4063
- alpha 90
- cris 63, removed in 4.17
- frv 63, removed in 4.17
- ia64 1070, removed in 6.7
- m32r 63, removed in 4.17
- m68k 63
- microblaze 63
- mn10300 63, removed in 4.17
- parisc 63
- score 1041, removed in 4.17
- sh 63
- sparc 90
- sparc64 90
- xtensa 11
Get this as JSON: https://api.syscall.sh/v2/syscalls/blackfin/dup2?kernel=all