Just to update, I edited the file in question to define the symbols. On my AIX 7.1 box this is need to make gcc compile code with C++11 turned on (the default). Posting this here in case anyone else runs into this. I'm using gcc 6.3.0 from the Toolbox, for 7.1.
These 2 Users Gave Thanks to topcat For This Post:
In Tru64 Unix, the 'errno' variable is not thread safe.
Could anybody help me about how to make it thread safe or how to check 'errno' in a Multithreaded program ????
The Programming process is like this.
There are some definite number of threads having their own task.
There is one... (2 Replies)
Hello,
I need to make a lib with pthread, when I run my make file all is good. But when I run my test program, I test errno in the begining and is already set to 251. Is it normal ??? What can I modify in my Makefile to have errno set to 0 ???
Thanks
$make
gcc -D_REENTRANT -shared -fpic... (3 Replies)
How should I use errno in a c program and what info does it have .
I am working with directories and files.
So can any one tell me How to access errno?I am using the stat() function on \etc directory and I am alble to access only the half of the directories.I am not able to access other half and... (6 Replies)
Hey, Can I assume that for certain function calls, errno can never be set to a certain value.
More specifically, can I assume that for if the stat function call fails, the errno can never be or "No space left on device."
I am assuming that a read function cannot fail because of no space... (5 Replies)
here the program gives a odd result:
#include <stdio.h>
int main(){
perror("first");
perror("next");
return 0;
}
result:
first: Success
next: Illegal seek
why? any resonable explanation? i found no information about this in man pages.
thanks in advance (2 Replies)
from mmap manpage I get it's errors discription:
The addresses specified by the range [off, off + len) are invalid
for filedes.
How could I trigger a ENXIO ? anyone can input the code?
Lei (3 Replies)
Dear all,
CentOS 6
After executing "yum update -y" command I am facing this error. Please help me out.
thanks in advance. Full error & error code is given as follow:
... (7 Replies)
I am calling getpwnam_r with all proper argument as below:-
rv = getpwnam_r(name, result, buffer, buflen);
This program runs fine on sol 8/9/10.
But on sol 11 it returns NULL with errno set to 25
(#define ENOTTY 25 /* Inappropriate ioctl for device */)
All boxes are... (2 Replies)
I am opening a text file using open() system call in O_RDONLY mode.
open() returns me a valid handler but also sets errno to 13 i.e. EACCES(Permission denied).
Question is when open() is returning a valid handler then why does it sets the errno?
Should not errno be set only in case of error... (10 Replies)
I am running the gxemul software under cygwin,
Just when installing the .iso image, I got the error shown in
the picture. Any ideas what's happening?
Thanks
Jack (1 Reply)
Discussion started by: lucky7456969
1 Replies
LEARN ABOUT SUSE
get_kernel_syms
GET_KERNEL_SYMS(2) Linux Programmer's Manual GET_KERNEL_SYMS(2)NAME
get_kernel_syms - retrieve exported kernel and module symbols
SYNOPSIS
#include <linux/module.h>
int get_kernel_syms(struct kernel_sym *table);
DESCRIPTION
If table is NULL, get_kernel_syms() returns the number of symbols available for query. Otherwise it fills in a table of structures:
struct kernel_sym {
unsigned long value;
char name[60];
};
The symbols are interspersed with magic symbols of the form #module-name with the kernel having an empty name. The value associated with a
symbol of this form is the address at which the module is loaded.
The symbols exported from each module follow their magic module tag and the modules are returned in the reverse of the order in which they
were loaded.
RETURN VALUE
On success, returns the number of symbols copied to table. On error, -1 is returned and errno is set appropriately.
ERRORS
There is only one possible error return:
ENOSYS get_kernel_syms() is not supported in this version of the kernel.
VERSIONS
This system call is only present on Linux up until kernel 2.4; it was removed in Linux 2.6.
CONFORMING TO
get_kernel_syms() is Linux-specific.
BUGS
There is no way to indicate the size of the buffer allocated for table. If symbols have been added to the kernel since the program queried
for the symbol table size, memory will be corrupted.
The length of exported symbol names is limited to 59 characters.
Because of these limitations, this system call is deprecated in favor of query_module(2) (which is itself nowadays deprecated in favor of
other interfaces described on its manual page).
SEE ALSO create_module(2), delete_module(2), init_module(2), query_module(2)COLOPHON
This page is part of release 3.25 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
Linux 2007-06-03 GET_KERNEL_SYMS(2)