syscall.sh / sh / msgrcv
msgrcv
System V message queue operations
sys_msgrcv(int msqid, struct msgbuf *msgp, size_t msgsz, long msgtyp, int msgflg)| number | 401 (0x191) |
|---|---|
| abi | common |
| entry point | sys_msgrcv |
| since | Linux 5.1 |
| man page | msgrcv(2) |
| source | elixir.bootlin.com |
Registers
| register | value |
|---|---|
r3 | 401, the syscall number |
r4 | int msqid |
r5 | struct msgbuf *msgp |
r6 | size_t msgsz |
r7 | long msgtyp |
r0 | int msgflg |
r0 | the return value |
Then run trapa #31 to enter the kernel.
Same syscall on other architectures
- x64 70
- x86 401
- arm64 188
- arm 302
- riscv64 188
- x32 1073741894
- loongarch64 188
- ppc64 401
- ppc 401
- s390x 401
- mips64 5068
- mipsn32 6068
- mipso32 4401
- alpha 202
- arc 188
- csky 188
- hexagon 188
- m68k 401
- microblaze 333
- nios2 188
- openrisc 188
- parisc 189
- sparc 401
- sparc64 401
- xtensa 168
Get this as JSON: https://api.syscall.sh/v2/syscalls/sh/msgrcv