NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | STANDARDS | HISTORY | SEE ALSO | COLOPHON |
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PR_SET_MM_ARG_START(2const) PR_SET_MM_ARG_START(2const)
PR_SET_MM_ARG_START, PR_SET_MM_ARG_END, PR_SET_MM_ENV_START, PR_SET_MM_ENV_END - modify kernel memory map descriptor fields
Standard C library (libc, -lc)
#include <linux/prctl.h> /* Definition of PR_* constants */ #include <sys/prctl.h> int prctl(PR_SET_MM, PR_SET_MM_ARG_START, unsigned long addr, 0L, 0L); int prctl(PR_SET_MM, PR_SET_MM_ARG_END, unsigned long addr, 0L, 0L); int prctl(PR_SET_MM, PR_SET_MM_ENV_START, unsigned long addr, 0L, 0L); int prctl(PR_SET_MM, PR_SET_MM_ENV_END, unsigned long addr, 0L, 0L);
PR_SET_MM_ARG_START Set the address above which the program command line is placed. PR_SET_MM_ARG_END Set the address below which the program command line is placed. PR_SET_MM_ENV_START Set the address above which the program environment is placed. PR_SET_MM_ENV_END Set the address below which the program environment is placed. The address passed with these calls should belong to a process stack area. Thus, the corresponding memory area must be readable, writable, and (depending on the kernel configuration) have the MAP_GROWSDOWN attribute set (see mmap(2)).
On success, 0 is returned. On error, -1 is returned, and errno is set to indicate the error.
EINVAL addr is greater than TASK_SIZE (the limit on the size of the user address space for this architecture).
Linux.
Linux 3.5.
prctl(2), PR_SET_MM(2const)
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Linux man-pages 6.9.1 2024-06-01 PR_SET_MM_ARG_START(2const)
Pages that refer to this page: PR_SET_MM(2const), PR_SET_MM_MAP(2const)