DLERROR(3) Linux Programmer's Manual DLERROR(3)NAME
dlerror - obtain error diagnostic for functions in the dlopen API
SYNOPSIS
#include <dlfcn.h>
char *dlerror(void);
Link with -ldl.
DESCRIPTION
The dlerror() function returns a human-readable, null-terminated string describing the most recent error that occurred from a call to one
of the functions in the dlopen API since the last call to dlerror(). The returned string does not include a trailing newline.
dlerror() returns NULL if no errors have occurred since initialization or since it was last called.
VERSIONS
dlerror() is present in glibc 2.0 and later.
ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7).
+----------+---------------+---------+
|Interface | Attribute | Value |
+----------+---------------+---------+
|dlerror() | Thread safety | MT-Safe |
+----------+---------------+---------+
CONFORMING TO
POSIX.1-2001.
NOTES
The message returned by dlerror() may reside in a statically allocated buffer that is overwritten by subsequent dlerror() calls.
History
This function is part of the dlopen API, derived from SunOS.
EXAMPLE
See dlopen(3).
SEE ALSO dladdr(3), dlinfo(3), dlopen(3), dlsym(3)COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the
latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.
Linux 2017-09-15 DLERROR(3)
Check Out this Related Man Page
DLERROR(3) Linux Programmer's Manual DLERROR(3)NAME
dlerror - obtain error diagnostic for functions in the dlopen API
SYNOPSIS
#include <dlfcn.h>
char *dlerror(void);
Link with -ldl.
DESCRIPTION
The dlerror() function returns a human-readable, null-terminated string describing the most recent error that occurred from a call to one
of the functions in the dlopen API since the last call to dlerror(). The returned string does not include a trailing newline.
dlerror() returns NULL if no errors have occurred since initialization or since it was last called.
VERSIONS
dlerror() is present in glibc 2.0 and later.
ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7).
+----------+---------------+---------+
|Interface | Attribute | Value |
+----------+---------------+---------+
|dlerror() | Thread safety | MT-Safe |
+----------+---------------+---------+
CONFORMING TO
POSIX.1-2001.
NOTES
The message returned by dlerror() may reside in a statically allocated buffer that is overwritten by subsequent dlerror() calls.
History
This function is part of the dlopen API, derived from SunOS.
EXAMPLE
See dlopen(3).
SEE ALSO dladdr(3), dlinfo(3), dlopen(3), dlsym(3)COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the
latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.
Linux 2017-09-15 DLERROR(3)
I can open my so file successfully by calling dlopen directly in my main function. But if I fork a child process, and call dlopen in child process, it failed!
I don't know why. Following is my code:
#include <stdio.h>
#include <errno.h>
#include <dlfcn.h>
void childFunc(void)
{
void... (1 Reply)
Hi,
I have a small test c program which tries to dlopen a shared library(libjvm.sl).
But i get error as "Can't dlopen() a library containing Thread Local Storage"
My program is as below
when i run the program i get error
any pointers why the error??
I am using hp-ux . The... (1 Reply)
Hi unix lovers,
I am getting error while compile a function which uses dlopen.
My code is
I am getting error as follows
Am I missing something? I think I am missing a lot :-)
I am using solaris.
Thanks in advance,
-Ashish (5 Replies)
when i try to run an executable i got the following error message:
resolve_symbols: loader error: dlopen:
what does this error mean and what should be done to avoid this?
with regards (1 Reply)
I've got a C++ program and some plugins ( shared objects ) that I have been developing for Linux. I was originally using and OSX machine to develop and test most of the code.
I use dlopen to open the shared objects and then call methods from them. It behaves differently on Linux ( don't know the... (3 Replies)