mq_open on score

open a message queue

sys_mq_open(const char *name, int oflag, umode_t mode, struct mq_attr *attr)
number180 (0xb4)
abicommon
kconfigCONFIG_POSIX_MQUEUE
familymqueue see the whole family on score
entry pointsys_mq_open
sinceLinux 3.7 or earlier (3.7 is the first release scanned for score)
man pagemq_open(2)
sourceelixir.bootlin.com

Registers

registervalue
r27180, the syscall number
r4const char *name
r5int oflag
r6umode_t mode
r7struct mq_attr *attr
r4the return value

Then run syscall to enter the kernel.

r7 is the error flag and r4 then holds the positive error number.

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

Get this as JSON: https://api.syscall.sh/v2/syscalls/score/mq_open?kernel=all