syscall.sh / x86 / open

open

open and possibly create a file

sys_open(const char *filename, int flags, umode_t mode)
number5 (0x5)
abii386
entry pointsys_open
sinceLinux 3.3
man pageopen(2)
sourceelixir.bootlin.com

Registers

registervalue
eax5, the syscall number
ebxconst char *filename
ecxint flags
edxumode_t mode
eaxthe return value

Then run int 0x80 to enter the kernel.

Same syscall on other architectures

Get this as JSON: https://api.syscall.sh/v2/syscalls/x86/open