01-03-2013
10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
I have concatenated 2 makefiles, to produce 1 however it is not running all of the code, producing a fatal error: symbol referencing errors. No output written. Can anybody please help? (4 Replies)
Discussion started by: Dan Rooney
4 Replies
2. UNIX for Dummies Questions & Answers
I need to develop a makefile that spans across directories. For example, let's say i have an upper level directory (main) and about 2 subdirectories. I want my .cpp files and .o files to be in one subdirectory. I want my .a files to be in the other subdirectory. The .a files are made up of the... (0 Replies)
Discussion started by: benjie_asu
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3. Shell Programming and Scripting
for example in my make file im building path from env variables and string but need to see what is did
what is the best way to print the result?
say I have in my Makefile :
exec_prefix = $(RUN_ENV_LOCAL)/apache
and I will like to print the exec_prefix value , how can it be done ? (1 Reply)
Discussion started by: umen
1 Replies
4. UNIX for Advanced & Expert Users
Solved........ (0 Replies)
Discussion started by: klam
0 Replies
5. UNIX for Dummies Questions & Answers
Are the programs written on schedulers ,thread library , process management, memory management, et al called systems programs ? How are they different from the programs that implement functions like open() , printf() , scanf() , read() .. they have a prefix sys_open, sys_close, sys_read etc , right... (1 Reply)
Discussion started by: vishwamitra
1 Replies
6. Shell Programming and Scripting
I have a make file and want to write some information and am doing
@echo " RAYPK_LIBSRC = $(RAYPK_LIBSRC)"
The line of code produces
RAYPK_LIBSRC = ./source/library/raypk/time.f ./source/library/raypk/model.f ./source/library/raypk/tomo.f ./source/library/raypk/plt.f... (1 Reply)
Discussion started by: kristinu
1 Replies
7. Shell Programming and Scripting
I have several makefiles to build various programs in a software suite (currently 4 programs). I want to create a main Makefile so that I can build everything I need.
Unsure on the way I should proceed, for example using
include fdtc.mk
or calling
$(MAKE) -f ./mk/Makefile nfdtc
Here... (15 Replies)
Discussion started by: kristinu
15 Replies
8. Programming
I am trying to practice to create Makefiles. The goal is to create a makefile such that if a change is made to any of the source code files, the project can be rebuilt by typing make at the command line.
I have the following files:
ac.cc: has include ac.h and pg.h
fr.cc: has main... (8 Replies)
Discussion started by: pintu1228
8 Replies
9. UNIX for Dummies Questions & Answers
Hey guys,
Suppose i run passwd via bash shell. It is a suid program, which temporarily runs as root(owner) and modifies the user entries.
However, when i write a C file and give 4755 permission and root ownership to the 'a.out' file , it doesn't run as root in bash shell. I verified this by... (2 Replies)
Discussion started by: syncmaster
2 Replies
10. UNIX for Beginners Questions & Answers
Hi All,
I was going through some makefiles where I saw occurrences of explib_subdirs and expinc_subdirs, which I could not understand.
Exporting libs to subdirs ? Exporting include files to specified subdirs ? When do we need to do that ?
What I could understand is, for a build, I would... (4 Replies)
Discussion started by: alltaken
4 Replies
LEARN ABOUT CENTOS
error::buildid
ERROR::BUILDID(7stap) ERROR::BUILDID(7stap)
NAME
error::buildid - build-id verification failures
DESCRIPTION
Because systemtap's script translation / execution stages may be executed at different times and places, it is sometimes necessary to ver-
ify certain invariants. One such invariant is that if a script was informed by translate-time analysis of executables, then those same
executables need to be used at run time. This checking is done based upon the build-id, a binary hash that modern (post-2007) compil-
ers/toolchains add as an NT_GNU_BUILD_ID ELF note to object files and executables. Use the readelf -n command to examine the build-ids of
binaries, if you are interested.
Only scripts are sensitive to executables' build-ids: generally those that perform deep analysis of the binaries or their debuginfo. For
example, scripts that place .function or .statement probes, or use stack backtrace-related tapset functions may be sensitive. Other
scripts that rely only on process.mark or kernel.trace probes do not require debuginfo. See the DWARF DEBUGINFO section in the stap-
probes(3stap) man page.
During translation, systemtap saves a copy of the relevant files' build-ids within the compiled modules. At run-time, the modules compare
the saved ones to the actual run-time build-ids in memory. The error message indicates that they did not match, so the module will decline
placing a probe that was computed based upon obsolete data. This is important for safety, as placing them at an inappropriate address
could crash the programs. However, this is not necessarily a fatal error, since probes unrelated to the mismatching binaries may operate.
A build-id mismatch could be caused by a few different situations. The main one is where the executable versions or architecture were dif-
ferent between the systemtap translation and execution times/places. For example, one may run a stap-server on a slightly different ver-
sion of the OS distribution. The kernel running on the workstation may be slightly different from the version being targeted - perhaps due
to a pending kernel upgrade leaving different files on disk versus running in memory. If your OS distribution uses separate debuginfo
packages, the split .IR .debug files may not exactly match the main binaries.
SEE ALSO
http://fedoraproject.org/wiki/Releases/FeatureBuildId,
stap(1),
stapprobes(3stap),
warning::debuginfo(7stap),
error::reporting(7stap)
ERROR::BUILDID(7stap)