That is still an unsigned int pointer type, implying you are assigning only 32 bits.
I don't think that's the problem since the routine works well when performed on non-text segment (for example on page which contains area acquired via malloc).
Quote:
IBM says some pages are not mprotect friendly this way: pSeries and AIX Information Center You might need that env variable.
I have these in my ~/.profile:
Is this enough for these env vars to be 'seen'? I tried different values of those, no effect.
Quote:
I am familiar with self-modifying code from machine language, what do you want it to do?
I am trying to write code to reload the program text from the original executable file in case an error occurs (e.g. a hardware error which scrambled some memory). Is there another way of doing it, instead of mprotect/memset ?
Hi,
Does anyone seen this error before..
kernel: ENOMEM in journal_alloc_journal_head, retrying.
I encounter this problem on IBM eServers where when the above error appears usually the machine is dead or hanged. Unless a hard reboot is been done. Is this something have to do with the memory... (1 Reply)
When run it, segment fault.
What is wrong?
#include <stdio.h>
#include <stdlib.h>
const int max =20;
//****************************************************
// Input Matrix
//****************************************************
void inMatrixAA(int *AA, int row, int col)... (9 Replies)
I do have 2 different segment network which different platform on each segment. E.g. 20 segment, Windows OS can talk to Unix OS and 21 segment practice same rule. Further more, Windows OS from 20 segment can talk to 21 segment other OS but only the UNIX OS in 20 segment fail to talk to 21 segment.... (3 Replies)
I need help in removing a leading zero in a particular position.
For eg.: XYZ*04567472*0099*020091231*0123*0.12
In the above line, I want to replace "*0123" with "123" and "0.12" with ".12". I want to remove the leading zero only in position number 4 and 5 (the bolded segments)
I was able... (10 Replies)
I mean, I malloc a segment of memory, maybe 1k maybe 20bytes.. assume the pointer is pMem How can I know the content pMem refered is all Zero or \0 . I know memcmp but the second parameter should another memory address... thanx (4 Replies)
Hi to all.
I'm reciving a "Segment violation" error from this code and I don't know why.
void insertAtEnd(NodeType *pList) {
char element;
printf("Introduce a element: \n");
setbuf(stdin, NULL);
scanf("%c", &element);
//Find the end of the list;
while... (4 Replies)
Hi,
Whether the following piece of code is placed in the read-only memory of code (text) segment or data segment?
char *a = "Hello";
I am getting two different answers while searching in google :( that's why the confusion is (7 Replies)
I always get segment fault, why? can sb help me and modify it, I have spend on much time on
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/time.h>
#include <string.h>
#define MAX 10
pthread_t thread;
void *thread1()
{
int *a;
int i, n;
... (1 Reply)
Discussion started by: yanglei_fage
1 Replies
LEARN ABOUT DEBIAN
ticker
NAME(1) General Commands Manual NAME(1)NAME
ticker - scroll messages across the screen
SYNOPSIS
ticker [options] [message]
DESCRIPTION
ticker is a program that continually scrolls a given message across the screen. There is also an interface to allow other programs to
change the message.
KEYS
+, [up arrow]
Increase scroll speed.
-, [down arrw]
Decrease scroll speed.
[space]
Pause. Press any key to unpause.
OPTIONS -h, --help
Show summary of options.
-u, --upper
Scroll text on the top line of the screen. (Default)
-l, --lower
Scroll text on the bottom line of the screen.
-fcolor, --foreground=color
Use the specified color as the forground color of the text that is scrolled. The colors that may be used are:
black gray
red brightred
green brightgreen
brown yellow
blue brightblue
magenta brightmagenta
cyan brightcyan
lightgray white
-bcolor, --background=color
Use the specified color as the background color of the text that is scrolled. On most terminals, the background color can only be
one of the colors listed in the first column above.
-dsecs, --delay=secs
Number of seconds delay between updates of the display. This controls how fast the text scrolls. You may use decimals to specify
faster scroll speeds. The default delay is 1 second; I find 0.1 more pleasing.
-snum, --sysv=num
Read messages to display from the sysv shared memory segment with an id of num. This is only for use by other programs that need to
be able to change the text ticker displays.
-Snum, --size=num
Size of the shared memory segment to read, when using shared memory communication with another program. Default is 80 characters.
-csecs, --check=secs
Minimum time between checks of the shared memory segment for a new message. Default is every second. It may in fact check consider-
ably less often, as it only checks for a new message once per time that the current message scrolls around the screen.
message
The message to scroll. Required unless -s is used, in which case it is optional.
NOTES
To use the other 23 or so lines of your screen for something useful while the ticker is running, you might want to use splitvt(1)AUTHOR
Joey Hess <joey@kitenet.net>
NAME(1)