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authorAlejandro Colomar <alx@kernel.org>2024-05-29 00:03:16 +0200
committerAlejandro Colomar <alx@kernel.org>2024-05-31 01:40:55 +0200
commitd88dc33e4bba757625536250d66243f39c463166 (patch)
treec46c7ffdd225cfdc0ded42c2ad45fb56a5447b1e
parent30867796993ad7ea1a9f4548cf9f57c31fb0c8b1 (diff)
downloadman-pages-d88dc33e4bba757625536250d66243f39c463166.tar.gz
PR_SET_MM.2const, PR_SET_MM_START_STACK.2const: Split PR_SET_MM_START_STACK from PR_SET_MM(2const)
Signed-off-by: Alejandro Colomar <alx@kernel.org>
-rw-r--r--man/man2const/PR_SET_MM.2const13
-rw-r--r--man/man2const/PR_SET_MM_START_STACK.2const47
2 files changed, 50 insertions, 10 deletions
diff --git a/man/man2const/PR_SET_MM.2const b/man/man2const/PR_SET_MM.2const
index 981eb6b3a2..333560989d 100644
--- a/man/man2const/PR_SET_MM.2const
+++ b/man/man2const/PR_SET_MM.2const
@@ -41,10 +41,8 @@ is one of the options below.
.B PR_SET_MM_START_DATA
.TQ
.B PR_SET_MM_END_DATA
-.TP
+.TQ
.B PR_SET_MM_START_STACK
-Set the start address of the stack.
-The corresponding memory area must be readable and writable.
.TP
.B PR_SET_MM_START_BRK
Set the address above which the program heap can be expanded with
@@ -203,12 +201,6 @@ is greater than
.B EINVAL
.I op
is
-.BR PR_SET_MM_START_STACK ,
-and the permissions of the corresponding memory area are not as required.
-.TP
-.B EINVAL
-.I op
-is
.B PR_SET_MM_START_BRK
or
.BR PR_SET_MM_BRK ,
@@ -239,4 +231,5 @@ option enabled.
.BR PR_SET_MM_START_CODE (2const),
.BR PR_SET_MM_END_CODE (2const),
.BR PR_SET_MM_START_DATA (2const),
-.BR PR_SET_MM_END_DATA (2const)
+.BR PR_SET_MM_END_DATA (2const),
+.BR PR_SET_MM_START_STACK (2const)
diff --git a/man/man2const/PR_SET_MM_START_STACK.2const b/man/man2const/PR_SET_MM_START_STACK.2const
new file mode 100644
index 0000000000..77c87c23c4
--- /dev/null
+++ b/man/man2const/PR_SET_MM_START_STACK.2const
@@ -0,0 +1,47 @@
+.\" Copyright 2012, Cyrill Gorcunov <gorcunov@openvz.org>
+.\" Copyright 2012, 2013, 2015, Michael Kerrisk <mtk.manpages@gmail.com>
+.\" Copyright 2024, Alejandro Colomar <alx@kernel.org>
+.\"
+.\" SPDX-License-Identifier: Linux-man-pages-copyleft
+.\"
+.TH PR_SET_MM_START_STACK 2const (date) "Linux man-pages (unreleased)"
+.SH NAME
+PR_SET_MM_START_STACK
+\-
+modify kernel memory map descriptor fields
+.SH LIBRARY
+Standard C library
+.RI ( libc ", " \-lc )
+.SH SYNOPSIS
+.nf
+.B #include <sys/prctl.h>
+.P
+.BI "int prctl(PR_SET_MM, PR_SET_MM_START_STACK, unsigned long " addr ", 0L, 0L);"
+.fi
+.SH DESCRIPTION
+Set the start address of the stack.
+The corresponding memory area must be readable and writable.
+.SH RETURN VALUE
+On success,
+0 is returned.
+On error, \-1 is returned, and
+.I errno
+is set to indicate the error.
+.SH ERRORS
+.TP
+.B EINVAL
+.I addr
+is greater than
+.B TASK_SIZE
+(the limit on the size of the user address space for this architecture).
+.TP
+.B EINVAL
+The permissions of the corresponding memory area are not as required.
+.SH STANDARDS
+Linux.
+.SH HISTORY
+Linux 3.3.
+.\" commit 028ee4be34a09a6d48bdf30ab991ae933a7bc036
+.SH SEE ALSO
+.BR prctl (2),
+.BR PR_SET_MM (2const)