On Thursday 02 April 2015 20:35:17 Reco wrote: > Hi. > > On Thu, 2 Apr 2015 15:06:42 -0400 > > Gene Heskett <ghesk...@wdtv.com> wrote: > > "ldd" says its not an executable, but then says ldd itself is not, > > while "file" says its (ldd) a Bourne Again SHell script. > > > > Am I compromized? > > Let's see what all fuss is about. > > First, > > wget -q > http://ftp.mozilla.org/pub/mozilla.org/firefox/releases/37.0/linux-x86_64/e >n-US/firefox-37.0.tar.bz2 > > Second, > > wget -q > ftp.mozilla.org/pub/mozilla.org/firefox/releases/37.0/SHA512SUMS > > Third, > > sha512sum firefox-37.0.tar.bz2 > > Fourth, > > grep > 665f856cd9f69db2122c6d5bf25305e0ffa60bb56f342be9512cbe81e912c0966a7e100ce2d >0e30bf978cf94fcf43a2de4c8afa6834ebd46ff7b292f6eec3224 SHA512SUMS > > And hurray, I've apparently got Genuine™ Mozilla Firefox 37. > > Next, > > tar xf firefox-37.0.tar.bz2 && cd firefox > > And, finally > > $ file firefox > firefox: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), > dynamically linked (uses shared libs), for GNU/Linux 2.6.18, BuildID > [sha1]=0xd9c52e07232a78690be6d991546a12bb3668601d, stripped > > $ file --mime-type firefox > firefox: application/x-executable > > So, it's definitely a binary. Yet, > > $ ldd ./firefox > not a dynamic executable > > Why? That's why: > > $ pwd > /tmp/firefox > $ mount | grep /tmp > tmpfs on /tmp type tmpfs > (rw,nosuid,nodev,noexec,relatime,size=12234980k) > > Notice *noexec* here. > > > You see, ldd actually tries to execute a file (by using special hack in > ld.so, so that's OK). And of course, if you put an executable at > no-executable mountpoint, not only you won't be able to run it, ldd > also ceases to work. > > And yes, ldd is a shell script. A customary way to prepend hacky > environment variables to executables is using shell wrappers. ldd is > just one of those. > > Still, if ldd fails you - use objdump: > > $ objdump -x firefox | grep NEED > NEEDED libpthread.so.0 > NEEDED libdl.so.2 > NEEDED librt.so.1 > NEEDED libstdc++.so.6 > NEEDED libm.so.6 > NEEDED libgcc_s.so.1 > NEEDED libc.so.6 > NEEDED ld-linux-x86-64.so.2 > VERNEED 0x00000000004036c8 > VERNEEDNUM 0x0000000000000007 > > > tl;dr version - move your firefox directory to filesystem mounted with > exec. Problem should solve itself.
But he doesn't need to do it anyway, because Iceweasel is in fact working. Lisi -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/201504022042.27349.lisi.re...@gmail.com
