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lib.prov: reindented, minor changes

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This commit is contained in:
Alexey Tourbin 2010-09-11 02:20:58 +04:00
parent 5e8118e213
commit 5f10a0f256
1 changed files with 57 additions and 69 deletions
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126
scripts/lib.prov.in
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@ -33,79 +33,67 @@ Debug "DEF_RPM_FINDPROV_LIB_PATH=$DEF_RPM_FINDPROV_LIB_PATH"
RPM_FINDPROV_LIB_PATH="$(IFS="$IFS:"; echo '' ${RPM_FINDPROV_LIB_PATH-} $DEF_RPM_FINDPROV_LIB_PATH '')"
Debug "RPM_FINDPROV_LIB_PATH=$RPM_FINDPROV_LIB_PATH"
# Normalize buildroot.
[ -z "${RPM_BUILD_ROOT-}" ] && real_buildroot= ||
real_buildroot="$(cd "$RPM_BUILD_ROOT" && /bin/pwd)" || exit 1
# Note this works for both a.out and ELF executables.
FindLibProvs()
LibProv()
{
local braces dir dump f name suffix
f="$1"
local fname="${f#${RPM_BUILD_ROOT-}}"
dir="${fname%/*}"
[ -n "$dir" ] || return 0
name="${fname##*/}"
[ -n "$name" ] || return 0
local f="$1" fname dir basename
fname=${f#${RPM_BUILD_ROOT-}}
dir=${fname%/*}
basename=${fname##*/}
# Check library location.
[ -n "$dir" ] && [ -n "$basename" ] || return 0
[ "$dir" = "/$RPM_LIB/security" ] || [ -z "${RPM_FINDPROV_LIB_PATH##* $dir *}" ] || return 0
if dump="$(objdump -p "$f")"; then
if [ "$dir" = "/$RPM_LIB/security" ]; then
printf 'PAM(%s)\n' "$name"
return 0
fi
local soname
soname="$(printf %s\\n "$dump" |sed -ne 's/^[[:space:]]*SONAME[[:space:]]\+\([^[:space:]]\+\)[[:space:]]*$/\1/p')" || return 1
suffix="$(printf %s\\n "$dump" |sed -ne 's/^.*file format \(elf64\).*$/(64bit)/p')" || return 1
[ -z "$suffix" ] && braces= || braces='()'
while :; do
# For libraries with soname, ignore all but files named as soname.
[ -z "$soname" -o "$soname" = "$name" ] || break
# Treat symlinks specially.
if [ -L "$f" ]; then
[ -n "$soname" ] || break
local real realpath realdir
realpath=$(readlink -fv "$f") || break
real="${realpath#$real_buildroot}"
# Ignore symlinks leading out of buildroot.
[ -z "$real_buildroot" ] || [ "$real" != "$realpath" ] || break
realdir="${real%/*}"
# Ignore symlinks to shorter locations.
[ "${#dir}" -le "${#realdir}" ] || break
fi
# soname is either empty or equal to name
soname="$name"
# Check for non-default path.
local nondefdir=
[ -z "${DEF_RPM_FINDPROV_LIB_PATH##* $dir *}" ] || nondefdir="$dir"
# Output soname.
if [ -z "$nondefdir" ]; then
printf '%s\n' "$soname$braces$suffix"
else
printf '%s/%s\n' "$nondefdir" "$soname$braces$suffix"
fi
# Output version definitions.
printf %s\\n "$dump" | awk "-vsoname=$soname" "-vnondefdir=$nondefdir" "-vsuffix=$suffix" '
BEGIN {start=0;}
/^Version definitions:$/ {start=1;}
/^[0-9]/ && (start==1) && ($4!="") && ($4!=soname) {
if (nondefdir=="")
printf("%s(%s)%s\n",soname,$4,suffix)
else
printf("%s/%s(%s)%s\n",nondefdir,soname,$4,suffix)
}
/^$/ {start=0;}
' || return 1
break
done
# Obtain objdump info.
local dump
if ! dump=$(objdump -p "$f"); then
Warning "$f: objdump failed"
return 0
fi
# Special case for PAM plugins.
if [ "$dir" = "/$RPM_LIB/security" ]; then
printf 'PAM(%s)\n' "$basename"
return 0
fi
local soname suffix braces
soname=$(printf %s\\n "$dump" |sed -ne 's/^[[:space:]]*SONAME[[:space:]]\+\([^[:space:]]\+\)[[:space:]]*$/\1/p')
suffix=$(printf %s\\n "$dump" |sed -ne 's/^.*file format \(elf64\).*$/(64bit)/p')
[ -z "$suffix" ] && braces= || braces='()'
# For libraries with soname, ignore all but files named as soname.
[ -z "$soname" ] || [ "$soname" = "$basename" ] || return 0
# Treat symlinks specially.
if [ -L "$f" ]; then
[ -n "$soname" ] || return 0
# Ignore symlinks leading out of buildroot.
local realpath
realpath=$(readlink -fv "$f")
[ -z "${realpath##${RPM_BUILD_ROOT-}/*}" ] || return 0
# Ignore symlinks to shorter locations.
local realdir
realdir=${realpath##${RPM_BUILD_ROOT-}}
realdir=${realdir%/*}
[ "${#dir}" -le "${#realdir}" ] || return 0
fi
# soname is either empty or equal to basename, so...
soname=$basename
# Check for non-default path.
local provdir=
[ -z "${DEF_RPM_FINDPROV_LIB_PATH##* $dir *}" ] || provdir=$dir/
# Output soname.
printf %s\\n "$provdir$soname$braces$suffix"
# Output version definitions.
printf %s\\n "$dump" |
sed -n '/^Version definitions:$/,/^$/{/^[0-9]/p}' |
awk -v provdir="$provdir" -v soname="$soname" -v suffix="$suffix" \
'NF==4 && $4!=soname {printf "%s%s(%s)%s\n", provdir, soname, $4, suffix}'
}
ArgvFileAction FindLibProvs "$@"
ArgvFileAction LibProv "$@"