PR_SET_MM_BRK - modify kernel memory map descriptor fields

Set the current brk(2) value. The requirements for the address are the same as for the PR_SET_MM_START_BRK option.

EINVALaddr is greater than TASK_SIZE (the limit on the size of the user address space for this architecture). EINVALaddr is less than or equal to the end of the data segment or specifies a value that would cause the RLIMIT_DATA resource limit to be exceeded.

Linux 3.3.

Standard C library (libc, -lc)

PR_SET_MM_BRK - modify kernel memory map descriptor fields

On success, 0 is returned. On error, -1 is returned, and errno is set to indicate the error.

prctl(2), PR_SET_MM(2const), PR_SET_MM_START_BRK(2const) Linux man-pages 6.9.1 2024-06-01 PR_SET_MM_BRK(2const)

Linux.

#include<linux/prctl.h> /* Definition of PR_* constants */ #include<sys/prctl.h>intprctl(PR_SET_MM,PR_SET_MM_BRK,unsignedlongaddr,0L,0L);