The user running the app has a ulimit setting to prevent it - environment setting
You linked against an object that blocks SIGSEGV/SIGBUS
You block SIGSEGV/SIGBUS in your code somewhere
I do not know much about ARM. When you execute the image file is there some separate environment in which it runs? To check resource settings:
ex:
I would guess this is the first place to look, and if this is not the case then it pretty much has to be signal blocking somewhere.
Hi,
Does anybody have a good pointer on Linux kernel internals for ARM architecture? I can locate plenty for x86 but since ARM is RISC I think there would be subtle changes. So if somebody has a knowledge of good document on Linux Kernel internals for ARM or even a comparative study of kernel on... (0 Replies)
I want to find the ARM assembly language for my sample C code using gcc .I had gcc compiler ,whether it is enough for it or i need to download gcc arm cross compiler.If necessary ,how it configured?I am using fedora (0 Replies)
think only compile is required I wish to compile a sample code
int main()
{
int a=5,b=8,c;
c=a+b;
}
compile using gcc -Wall -g -march=arm922t main.c -o hello
I got an error
:bad value(arm922t) for -march=switch
instead of using march i used mcpu options ,the same... (1 Reply)
hi,
correct me if am wrong, as per gcc doc gcc is able to compile code for different target systems such as ARM, ARC etc. I tried for compiling ARM but failed to do so.
getting below error:
gcc -mcpu=arm920t -c avg.c -o agv_arm
`-mcpu=' is deprecated. Use `-mtune=' or '-march=' instead.... (6 Replies)
Hi guys,
i'm running a program on samsumg 6410 arm cpu board. it caused an "free(): invalid next size (normal)" fail.
i try to use gdb for remote debugging:
1, start gdb server on board:
gdbserver 192.168.1.20:1234 ./HostAP
Process ./HostAP created; pid = 499
Listening on port... (8 Replies)
Hi,
I'm trying to develop an application to work with serial infra-red module, but I'm having difficulties to even get my module started. My HW is Beagleboard, which has 1 UART serial port, normally used for console, which I have disabled (I re-created the boot.scr, without the console... (0 Replies)
I created and Compiled a C program to run in QEMU for ARM.
When I run the program using the command
#qemu-arm -L /home/arm-2010.09/arm-none-linux-gnueabi/libc ./test
it gives me the following error:
If 'qemu-arm' is not a typo you can use command-not-found to lookup the package that contains... (0 Replies)
Hi I am trying to port xenomai on exynos 4210 arm board.
With some research I have found a way to port the board on the exynos board but the problem is that on the exynos-4210 website they have provided a patched version of linux-3.0.15 kernel for implementing on the board.
On this kernel I am... (1 Reply)
Hello everyone. I am running Debian on an ARM7 Device (aka my android phone). Everything is great. Works well.
I would love to use it for Development.
Mainly my interests are in Web Development, and Java development.
So far the only useful IDE for debian arm is Netbeans. Which is pretty... (0 Replies)
Discussion started by: CDevelop
0 Replies
LEARN ABOUT ULTRIX
setrlimit
getrlimit(2) System Calls Manual getrlimit(2)Name
getrlimit, setrlimit - control maximum system resource consumption
Syntax
#include <sys/time.h>
#include <sys/resource.h>
getrlimit(resource, rlp)
int resource;
struct rlimit *rlp;
setrlimit(resource, rlp)
int resource;
struct rlimit *rlp;
Description
Limits on the consumption of system resources by the current process and each process it creates can be obtained with the call and set with
the call.
The resource parameter is one of the following:
RLIMIT_CPU the maximum amount of cpu time (in milliseconds) to be used by each process.
RLIMIT_FSIZE the largest size, in bytes, of any single file that may be created.
RLIMIT_DATA the maximum size, in bytes, of the data segment for a process. This limit defines how far a program can extend its break
with the system call.
RLIMIT_STACK the maximum size, in bytes, of the stack segment for a process. This limit defines how far a program's stack segment can
be extended, either automatically by the system or explicitly by a user, with the system call.
RLIMIT_CORE the largest size, in bytes, of a core file that may be created.
RLIMIT_RSS the maximum size, in bytes, to which a process's resident set size may grow when there is a shortage of free physical mem-
ory. Exceeding this limit when free physical memory is in short supply results in an unfavorable scheduling priority
being assigned to the process.
A resource limit is specified as a soft limit and a hard limit. When a soft limit is exceeded, a process may receive a signal (for exam-
ple, if the cpu time is exceeded), but it will be allowed to continue execution until it reaches the hard limit (or modifies its resource
limit). The system uses just the soft limit field of the resources RLIMIT_CORE and RLIMIT_RSS. The rlimit structure is used to specify the
hard and soft limits on a resource, as shown:
struct rlimit {
int rlim_cur; /* current (soft) limit */
int rlim_max; /* hard limit */
};
Only the superuser may raise the maximum limits. Other users may alter rlim_cur within the range from 0 to rlim_max or (irreversibly)
lower rlim_max.
An "infinite" value for a limit is defined as RLIM_INFINITY (0x7fffffff).
Because this information is stored in the per-process information, this system call must be executed directly by the shell if it is to
affect all future processes created by the shell; limit is thus a built-in command to
The system refuses to extend the data or stack space when the limits would be exceeded in the normal way: a break call fails if the data
space limit is reached, or the process is killed when the stack limit is reached. Because the stack cannot be extended, there is no way to
send a signal.
A file I/O operation that creates too large a file causes the SIGXFSZ signal to be generated. This condition normally terminates the
process, but may be caught. When the soft cpu time limit is exceeded, a signal SIGXCPU is sent to the process.
Return Values
A 0 return value indicates that the call succeeded, changing or returning the resource limit. A return value of -1 indicates that an
error occurred, and an error code is stored in the global location errno.
Environment
System Five
When your program is compiled in the System V environment, the SIGXFSZ signal is not generated.
Diagnostics
The call fails under the following conditions:
[EFAULT] The address specified for rlp is invalid.
[EPERM] The limit specified to would have raised the maximum limit value, and the caller is not the superuser.
[EINVAL] Resource is greater than or equal to RLIM_NLIMITS.
See Alsocsh(1), quota(2)getrlimit(2)