That IS what I meant. Yes it has a high probability of causing problems - each of those distros has added features and directories, etc. If the code is pure base C with no libraries other than libc it may be okay.
It will also have a lot better chance to work if you link it statically - which results in a huge executable.
The only way you can partially test that the dynamic linking is compatible is to put the foreign binary on host and
Code:
ldd foreign_binary
If ldd reports problems you are out of the game from the get-go.
The likely error after that is 'undefined symbol' at runtime.
Does anyone successfully compile Apche2.0.50 on Suse9.0? After run ./configure, and type "make" command, it always stops at this point:
-------
....
/home/hiep/httpd-2.0.50/srclib/apr/libtool --silent --mode=link gcc -g -O2 -pthread -DLINUX=2 -D_REENTRANT -D_XOPEN_SOURCE=500 -D_BSD_SOURCE... (0 Replies)
I'm having some peculiar performance issues with my Gigabit Lan.
I have some 100Mb devices so I can't do the necessary "jumbo Frame" tweaks for absolute optimum performance as I'd prevent them access.
I'm getting appauling transfer rates sending files to the linux machine, around 10 Mbps 3%... (0 Replies)
I'm trying to run phpBB2 software on Apache2, all was fine with setups except I had no password protecting my database.
After researching how to do it, I attempted to set password "freddy" to root (for obvious reasons "freddy" isn't the actual pw I used).
I now can't login to MYSQL4 using... (1 Reply)
AIM- Install Oracle 11g on Solaris using VMWare
Steps
1.Logged on as root
2.Created subfolders à /usr/local/bin & /usr/local/bin/gcc
3.Downloaded gcc & libiconv & unzipped them on my harddrive & burnt them on CD
4.Copied files from CD to /usr/local/bin/gcc
5.Terminal (root) à pkgadd -d... (8 Replies)
Hi,
Can someone tell me what will be the difference between the binary that is built on Redhat8 and Suse9 even when compiler version is same i.e GCC 3.2.3 is used on both?I mean if I build an application on Suse9 using GCC 3.2that was supposed to be built on Redhat8 using GCC 3.2 what all... (1 Reply)
Hi,
Can someone tell me what will be the difference between the binary that is built on Redhat8 and Suse9 even when compiler version is same i.e GCC 3.2.3 is used on both?I mean if I build an application on Suse9 using GCC 3.2that was supposed to be built on Redhat8 using GCC 3.2 what all... (1 Reply)
Hi, I have recently got a job in unix, now training is going on and we have been practicing on telnet, so to practice at home I have installed vmware(virtual machine) and planning to download ubuntu. So my doubt is that whether I can write c and cpp progs in vi editor and can I run them by default... (5 Replies)
anyone has an idea from where can i download gcc 3.4.6 for hp-ux 11iv3 itanium? (0 Replies)
Discussion started by: guy3145
0 Replies
LEARN ABOUT PHP
ldd
LDD(1) Linux Programmer's Manual LDD(1)NAME
ldd - print shared object dependencies
SYNOPSIS
ldd [option]... file...
DESCRIPTION
ldd prints the shared objects (shared libraries) required by each program or shared object specified on the command line. An example of
its use and output is the following:
$ ldd /bin/ls
linux-vdso.so.1 (0x00007ffcc3563000)
libselinux.so.1 => /lib64/libselinux.so.1 (0x00007f87e5459000)
libcap.so.2 => /lib64/libcap.so.2 (0x00007f87e5254000)
libc.so.6 => /lib64/libc.so.6 (0x00007f87e4e92000)
libpcre.so.1 => /lib64/libpcre.so.1 (0x00007f87e4c22000)
libdl.so.2 => /lib64/libdl.so.2 (0x00007f87e4a1e000)
/lib64/ld-linux-x86-64.so.2 (0x00005574bf12e000)
libattr.so.1 => /lib64/libattr.so.1 (0x00007f87e4817000)
libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f87e45fa000)
In the usual case, ldd invokes the standard dynamic linker (see ld.so(8)) with the LD_TRACE_LOADED_OBJECTS environment variable set to 1.
This causes the dynamic linker to inspect the program's dynamic dependencies, and find (according to the rules described in ld.so(8)) and
load the objects that satisfy those dependencies. For each dependency, ldd displays the location of the matching object and the (hexadeci-
mal) address at which it is loaded. (The linux-vdso and ld-linux shared dependencies are special; see vdso(7) and ld.so(8).)
Security
Be aware that in some circumstances (e.g., where the program specifies an ELF interpreter other than ld-linux.so), some versions of ldd may
attempt to obtain the dependency information by attempting to directly execute the program, which may lead to the execution of whatever
code is defined in the program's ELF interpreter, and perhaps to execution of the program itself. (In glibc versions before 2.27, the
upstream ldd implementation did this for example, although most distributions provided a modified version that did not.)
Thus, you should never employ ldd on an untrusted executable, since this may result in the execution of arbitrary code. A safer alterna-
tive when dealing with untrusted executables is:
$ objdump -p /path/to/program | grep NEEDED
Note, however, that this alternative shows only the direct dependencies of the executable, while ldd shows the entire dependency tree of
the executable.
OPTIONS --version
Print the version number of ldd.
-v, --verbose
Print all information, including, for example, symbol versioning information.
-u, --unused
Print unused direct dependencies. (Since glibc 2.3.4.)
-d, --data-relocs
Perform relocations and report any missing objects (ELF only).
-r, --function-relocs
Perform relocations for both data objects and functions, and report any missing objects or functions (ELF only).
--help Usage information.
BUGS
ldd does not work on a.out shared libraries.
ldd does not work with some extremely old a.out programs which were built before ldd support was added to the compiler releases. If you
use ldd on one of these programs, the program will attempt to run with argc = 0 and the results will be unpredictable.
SEE ALSO pldd(1), sprof(1), ld.so(8), ldconfig(8)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/.
2017-09-15 LDD(1)