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|
#! /usr/bin/ksh
# Original Author: Tim Mooney (mooney@plains.nodak.edu)
# $Id: irix6.prov,v 1.5 1999/09/30 00:22:15 jbj Exp $
#
# This file is distributed under the terms of the GNU Public License
#
# find-provides is part of RPM, the Red Hat Package Manager. find-provides
# reads a list of full pathnames (in a package) on stdin, and outputs all
# shared libraries provided by (contained in) the package.
#
# NOTE: I use `:' as the delimiter (by default) between the library soname
# and any library version info. This is because IRIX libraries (even
# system libraries) have "version information" in both the soname and the
# internal version field, so it's important to be able to separate those
# fields. If we just used `.', we wouldn't know where the soname ends and
# the version infromation begins.
#
#
# On IRIX, use `elfdump -L' to find what libraries a package provides
#
# Example `elfdump -L' output:
#
#$elfdump -L /usr/lib/libc.so
#
#
#/usr/lib/libc.so:
#
# **** DYNAMIC SECTION INFORMATION ****
#.dynamic :
#[INDEX] Tag Value
#[0] HASH 0xfa099d0
#[1] STRTAB 0xfa0027c
#[2] SYMTAB 0xfa10e3c
#[3] STRSZ 0x9751
#[4] SYMENT 0x10
#[5] INIT 0
#[6] FINI 0
#[7] RLDVERS 0x1
#[8] FLAGS 0x1411
#[9] BASEADDR 0xfa00000
#[10] LOCGOTNO 0x3c
#[11] PROTECT 0x3c
#[12] HIDDEN 0x12
#[13] CNFLCTNO 0
#[14] LBLISTNO 0
#[15] SYMTABNO 0xd19
#[16] UNREFEXT 0x8
#[17] GOTSYM 0x8b3
#[18] LOCAL 0x12
#[19] LOCALPG 0x1
#[20] LOCALPG 0x10
#[21] PLTGOT 0xfb483b0
#[22] RLDTXT_ADR0xfb6b580
#[23] OPTIONS 0xfa000f4
#[24] SONAME libc.so.1
#[25] TIMSTAMP Jun 16 18:23:15 1997
#[26] CHECKSUM 0x92321a0c
#[27] IVERSION sgi1.0
#[28] REL 0xfa1dfcc
#[29] RELSZ 0x1988
#[30] RELENT 0x8
#[31] MSYM 0xfa1f954
#[32] COMPCTSIZE0xc60c
#No Library List Section in /usr/lib/libc.so
#
PATH=/usr/bin:/usr/sbin
export PATH
#
# Use `while read ...' instead of `for f in ...', because there may be too
# many files to stuff into one shell variable.
#
IFS=""
while read f
do
#
# If it's a shared library, run elfdump on it.
#
maybe_shared_lib=`file $f | egrep 'ELF.*dynamic lib'`
if test X"$maybe_shared_lib" != X ; then
elfdump -L $f 2>/dev/null | awk '
BEGIN {
FS = " ";
RS = "\n";
OFS = "";
# The character that should separate the soname from
# the version information. If you change this, you
# should also change the same variable in the IRIX
# find-requires script
soname_version_delimiter=":"
found_soname = 0;
found_iversion = 0;
}
# Uncomment the next line for some debugging info.
#{ print NR , ":", $0 }
/[ ]+SONAME .*[ ]*$/ {
found_soname = 1;
numfields = split($0, internal_name)
if (numfields == 3) {
soname = $3
} else {
#
# Should never be here.
#
print "Really odd looking soname:", $0 | "cat 1>&2"
exit
}
}
/[ ]+IVERSION .*[ ]*$/ {
if (found_soname == 1) {
numfields = split($0, iversion)
if (numfields == 3) {
version = $3
#
# handle libraries with multiple versions, like
# 1.1:1.2. Since they really provide both versions,
# we need to generate output for each version.
#
numfields = split(version, versions, ":")
if (numfields > 1) {
for (i = 1; i < numfields; i++) {
print soname, soname_version_delimiter, versions[i]
}
#
# let our END routine print out the *last* version
# provided
#
version = versions[numfields]
}
#
# stick a fork in us.
#
found_iversion = 1;
exit
} else {
#
# handle libraries with comments and other junk in
# the version field. IRIX has a number of system libraries
# with whitespace and other junk in the version field!
#
# we discard the whitespace and keep the identifier after
# the # sign.
#
version = iversion[numfields]
numfields = split(version, version_junk, "#")
if (numfields > 1) {
version = version_junk[numfields]
found_iversion = 1;
}
}
} else {
#
# found an iversion without an soname. Is that possible?
#
print "Found version but no soname:", $0 | "cat 1>&2"
exit
}
}
#
# we could probably watch for some other token (like RELSZ)
# that *generally* occurs later in the input than the stuff we watch
# for, and exit if we see it, but it is just as easy to read all
# the output, even after we have seen what we are looking for.
#
END {
# Uncomment the next line for debugging info
#{ print "END: NR: ", NR }
if ( (found_soname == 1) && (found_iversion == 1) ) {
print soname, soname_version_delimiter, version
exit
} else if ( (found_soname == 1) && (found_iversion == 0) ) {
#
# no library version information *BUT* any programs linked
# against this library will pick up a dependency on version 0
# of this library, so we output that.
#
print soname, soname_version_delimiter, 0
}
# else do nothing
}
' # end of awk
fi # end of the 'if test X"$maybe_shared_lib != X ; then' clause
done | sort -u
#comment out the previous line and uncomment the next line when debugging
#done
|
