Questions tagged [glibc]
The GNU C library is used as the C library in the GNU system and most systems with the Linux kernel. It defines the "system calls" and other basic facilities such as open, malloc, printf, exit, etc.
glibc
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ASLR and address space for glibc
Take two functions in the libc.so.6 listing, for example:
setvbuf 0017a3f0
system 0014f760
The two are 0x2ac90 distant.
Upon execution with ASLR enabled, will the functions be called from ...
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undefined reference to `__res_maybe_init@GLIBC_PRIVATE' got while installing krb5
During installing krb5 via brew install krb5, got this error:
gcc-14 -L../../lib -Wl,--enable-new-dtags -Wl,-rpath -Wl,~/opt/brew/Cellar/krb5/1.21.3/lib -g -O2 -DHAVE_CONFIG_H -I../../include -I../....
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Can't compile glibc and find headers even though they are there
Configure: error: GNU libc requires kernel header files from Linux 3.2.0 or later to be installed before configuring.
The kernel header files are found usually in /usr/include/asm and
/usr/include/...
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Use spack installed packages on older OS / ship glibc with spack repository? [duplicate]
We want to use Spack to distribute software among a heterogeneous Linux landscape.
When installing a package, Spack uses the local version of glibc (from Ubuntu 22).
Running the installed package on ...
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0
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negative value in __writer member variable of struct pthread_rwlock_t [closed]
I am debugging one deadlock case in my application running on RHEL 7(glibc 2.17). When inspecting using gdb, at the time of deadlock, I see the following values on printing std::shared_timed_mutex(...
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How to resolve glibc errors in conda enviroment installation?
I am a non root user in a Linux based cluster. It doesn't have docker nor I have privileges to install it. The base environment have GLIBC version 2.17. I am trying to install packages (like faiss-gpu,...
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how to debug "*** buffer overflow detected ***: program_name terminated" along with _FORTIFY_SOURCE=2
My program crashes with the message "*** buffer overflow detected ***: program_name terminated", and I suspect it may be related to the compiler option "_FORTIFY_SOURCE=2" that I ...
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2
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/lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.33' not found
I'm having a problem while running container. In my project there are 3 different containers (one for the backend, one for the frontend and one for mongodb), the last two works fine but the first (the ...
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Undefined Function in Shared library but not in object files
I have a shared library that when put through a nm call shows a undefined symbol for strerror@@GLIBC_2.2.5.
However, when I go through all object files that this shared library was generated from, and ...
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2
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C free() on Ubuntu VM, a question regarding heap memory
A simple program to allocate and free heap memory:
int main(int argc, char **argv) {
char *b1, *b2, *b3, *b4, *b_large;
b1 = malloc(8);
memset(b1, 0xaa, 8);
b2= malloc(16);
memset(...
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1
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1
answer
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error: FALLOC_FL_KEEP_SIZE undeclared (first use in this function)
As per the man page, I have defined _GNU_SOURCE before the inclusion of <fcntl.h>:
#include <stdio.h>
#define _GNU_SOURCE /* For Linux's fallocate(). */
#define HAVE_FALLOCATE 1
#...
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1
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Got different types of error from a single C program in Linux [closed]
I am working on an embedded Linux (kernel-5.10.24) and now I am running a C program to do a stress testing about file copying. The code is using stdio to read and write file, as follows,
#include <...
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Resolve undefined references to library linked by dlopen
When using
void *ptr = dlopen(path_to_shared_object,RTLD_NOW)
"all undefined symbols in the shared object are resolved before dlopen() returns" (man page).
Is there an analogous way to ...
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Is Adoptium jdk8u412-b08 built products supported on RHEL7.4? Getting GLIC_2.28 error
Is Adoptium jdk8u412-b08 built products supported on RHEL7.4? Getting GLIBC_2.28 error.
Any suggestions to understand wht is wrong and how to fix it.
Same product works fine on Is Adoptium jdk8u412-...
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1
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ld and gcc fails to link glibc for assembly code
I am trying to compile an assembly program that calls upon C functions. As a test I am making a terrible hello world calling printf from stdio.h. The C version should look something like
#include <...
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