kcmp on metag
compare two processes to determine if they share a kernel resource
sys_kcmp(pid_t pid1, pid_t pid2, int type, unsigned long idx1, unsigned long idx2)| number | 272 (0x110) |
|---|---|
| abi | common |
| kconfig | CONFIG_KCMP |
| entry point | sys_kcmp |
| since | Linux 3.9 or earlier (3.9 is the first release scanned for metag) |
| man page | kcmp(2) |
| source | elixir.bootlin.com |
Registers
| register | value |
|---|---|
D1Re0 | 272, the syscall number |
D1Ar1 | pid_t pid1 |
D0Ar2 | pid_t pid2 |
D1Ar3 | int type |
D0Ar4 | unsigned long idx1 |
D1Ar5 | unsigned long idx2 |
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 312
- x86 349
- arm64 272
- arm 378
- riscv64 272
- ia32 349
- x32 1073742136
- loongarch64 272
- ppc64 354
- ppc 354
- s390x 343
- mips64 5306
- mipsn32 6311
- mipso32 4347
- alpha 506
- arc 272
- blackfin 383, removed in 4.17
- cris 350, removed in 4.17
- csky 272
- hexagon 272
- ia64 1345, removed in 6.7
- m68k 347
- microblaze 379
- nds32 272, removed in 5.18
- nios2 272
- openrisc 272
- parisc 332
- score 272, removed in 4.17
- sh 367
- sparc 341
- sparc64 341
- tilegx 272, removed in 4.17
- tilepro 272, removed in 4.17
- xtensa 331
Get this as JSON: https://api.syscall.sh/v2/syscalls/metag/kcmp?kernel=all