Searching for Glibc Vdso Support information? Find all needed info by using official links provided below.
https://www.linuxjournal.com/content/creating-vdso-colonels-other-chicken
Well, vDSO hooks are provided via the glibc library. The linker will link in the glibc vDSO functionality, provided that such a routine has an accompanying vDSO version, such as gettimeofday(). When your program executes, if your kernel does not have vDSO support, a traditional syscall will be made.
https://stackoverflow.com/questions/19938324/what-are-vdso-and-vsyscall
Apr 18, 2016 · The vDSO links are provided via the glibc library. The linker will link in the glibc vDSO functionality, provided that such a routine has an accompanying vDSO version, such as gettimeofday. When your program executes, if your kernel does not have vDSO support, a traditional syscall will be made. Credits and useful links :
https://github.com/facebook/rocksdb/issues/1305
Aug 29, 2016 · Obviously that version of glibc and libstdc++ is quite outdated now; However I am trying to understand forwards and backwards compatibility between glibc versions. Using a librocksdbjni-linux64.so file built on CentOS 5.6 (glibc 2.5) on CentOS 7.2 (glibc 2.17) seems to work fine.
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/6.6_technical_notes/glibc
Updated glibc packages that fix two security issues, several bugs, and add two enhancements are now available for Red Hat Enterprise Linux 6. ... (VDSO) indirect function support for the gettimeofday() system call on 64-bit PowerPC system to improve the performance of gettimeofday().
https://stackoverflow.com/questions/17406389/is-it-possible-to-turn-off-vdso-on-glibc-side
is it possible to turn off vdso on glibc side? Ask Question Asked 6 years, 5 months ago. Active 3 years, 8 months ago. Viewed 1k times 4. 1. I am aware that passing vdso=0 to kernel can turn this feature off, and that the dynamic linker in glibc can automatic detect and use …
https://en.wikipedia.org/wiki/VDSO
vDSO is a memory area allocated in user space which exposes some kernel functionalities. vDSO is dynamically allocated, offers improved safety through memory space randomization, and supports more than 4 system calls. vDSO links are provided via the glibc library. If the kernel does not have vDSO support, a traditional syscall is made.
https://www.gnu.org/software/libc/manual/html_node/Configuring-and-compiling.html
C.1 Configuring and compiling the GNU C Library. The GNU C Library cannot be compiled in the source directory. You must build it in a separate build directory. For example, if you have unpacked the GNU C Library sources in /src/gnu/glibc-version, create a directory /src/gnu/glibc-build to put the object files in. This allows removing the whole ...
https://access.redhat.com/discussions/1340433
[root@test ~]# yum update glibc Loaded plugins: product-id, rhnplugin, security, subscription-manager Updating certificate-based repositories. Unable to read consumer identity This system is not registered with RHN. RHN Satellite or RHN Classic support will be disabled.
https://www.ibm.com/support/knowledgecenter/linuxonibm/com.ibm.linux.z.lhdd/lhdd_r_vdsoparm.html
Use the vdso= kernel parameter to control the vdso support for the gettimeofday, clock_getres, and clock_gettime system calls.. The virtual dynamic shared object (vdso) support is a shared library that the kernel maps to all dynamically linked programs. The glibc detects the presence of the vdso and uses the functions that are provided in the library.
https://www.tenable.com/plugins/nessus/79539
Synopsis The remote OracleVM host is missing one or more security updates. Description The remote OracleVM system is missing necessary patches to address critical security updates : - Remove gconv transliteration loadable modules support (CVE-2014-5119, - _nl_find_locale: Improve handling of crafted locale names (CVE-2014-0475, - Don't use alloca in addgetnetgrentX (#1087789).
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