syscall.sh / x86 / prctl
prctl
operations on a process or thread
sys_prctl(int option, unsigned long arg2, unsigned long arg3, unsigned long arg4, unsigned long arg5)| number | 172 (0xac) |
|---|---|
| abi | i386 |
| entry point | sys_prctl |
| since | Linux 3.3 |
| man page | prctl(2) |
| source | elixir.bootlin.com |
Registers
| register | value |
|---|---|
eax | 172, the syscall number |
ebx | int option |
ecx | unsigned long arg2 |
edx | unsigned long arg3 |
esi | unsigned long arg4 |
edi | unsigned long arg5 |
eax | the return value |
Then run int 0x80 to enter the kernel.
Same syscall on other architectures
- x64 157
- arm64 167
- arm 172
- riscv64 167
- x32 1073741981
- loongarch64 167
- ppc64 171
- ppc 171
- s390x 172
- mips64 5153
- mipsn32 6153
- mipso32 4192
- alpha 348
- arc 167
- csky 167
- hexagon 167
- m68k 172
- microblaze 172
- nios2 167
- openrisc 167
- parisc 172
- sh 172
- sparc 147
- sparc64 147
- xtensa 130
Get this as JSON: https://api.syscall.sh/v2/syscalls/x86/prctl