ExternalVendorCode/crosstool-ng
1
0
Fork 0
mirror of https://github.com/crosstool-ng/crosstool-ng.git synced 2025-02-21 09:21:52 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Check libraries for compatibility

Browse Source 
... as we are going through various multilibs in ld.so.conf

Signed-off-by: Alexey Neyman <stilor@att.net>
This commit is contained in:
Alexey Neyman 2017-03-13 01:23:13 -07:00
parent 11b52ab6d7
commit b00dea9951
1 changed files with 54 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

56
scripts/xldd.in
View File

@ -16,6 +16,10 @@ fake_load_addr_rpath="$((0xdeadc0de))"
fake_load_addr_sysroot="$((0x8badf00d))"
ld_library_path="/lib:/usr/lib"
need_e_class=
need_e_flags=
need_e_mach=
do_error() {
printf "%s: %s\n" "${my_name}" "$*" >&2
}
@ -200,6 +204,35 @@ do_report_needed_found() {
"${sys}"
}
do_check_compat() {
local file="${1}"
local info e_mach e_class e_flags
if [ ! -r "${file}" ]; then
return 1
fi
info=`${readelf} -Wh "${file}"`
e_class=`echo "${info}" | "${sed}" -nr 's/.*Class:[[:space:]]*//p'`
e_mach=`echo "${info}" | "${sed}" -nr 's/.*Machine:[[:space:]]*//p'`
e_flags=`echo "${info}" | "${sed}" -nr 's/.*Flags:[[:space:]]*//p'`
if [ "${e_class}" != "${need_e_class}" ]; then
do_trace "-> skip incompatible '%s' (class '%s', need '%s')\n" \
"${base}${d}/${needed}" "${e_class}" "${need_e_class}"
return 1
fi
if [ "${e_mach}" != "${need_e_mach}" ]; then
do_trace "-> skip incompatible '%s' (machine '%s', need '%s')\n" \
"${base}${d}/${needed}" "${e_mach}" "${need_e_mach}"
return 1
fi
if [ "${e_flags}" != "${need_e_flags}" ]; then
do_trace "-> skip incompatible '%s' (flags '%s', need '%s')\n" \
"${base}${d}/${needed}" "${e_flags}" "${need_e_flags}"
return 1
fi
return 0
}
# Search a needed file, scanning ${lib_dir} in the root directory
do_find_needed() {
local needed="${1}"
@ -229,7 +262,7 @@ do_find_needed() {
fi
for d in "${dirs[@]}"; do
do_trace "-> looking in '%s' (%s)\n" "${d}" "${where}"
if [ -f "${base}${d}/${needed}" ]; then
if do_check_compat "${base}${d}/${needed}"; then
found="${d}/${needed}"
do_trace "---> found\n"
break 2
@ -250,9 +283,11 @@ do_find_needed() {
# Scan a file for all NEEDED tags
do_process_file() {
local file="${1}"
local initial="${2}"
local -a save_search_rpath
local n m
local found
local info
do_trace "Parsing file '%s'\n" "${file}"
@ -270,6 +305,17 @@ do_process_file() {
done
do_trace ": end search path\n"
if [ -n "${initial}" ]; then
if ! "${readelf}" -Wl "${file}" |
"${grep}" 'Requesting program interpreter: ' >/dev/null; then
printf " not a dynamic executable\n"
exit 1
fi
info=`${readelf} -Wh "${file}"`
need_e_class=`echo "${info}" | "${sed}" -nr 's/.*Class:[[:space:]]*//p'`
need_e_mach=`echo "${info}" | "${sed}" -nr 's/.*Machine:[[:space:]]*//p'`
need_e_flags=`echo "${info}" | "${sed}" -nr 's/.*Flags:[[:space:]]*//p'`
fi
for n in $( "${readelf}" -d "${file}" \
|"${grep}" -E '\(NEEDED\)' \
|"${sed}" -r -e 's/^.*Shared library:[[:space:]]+\[([^]]+)\].*/\1/;' \
@ -324,6 +370,12 @@ do_scan_etc_ldsoconf() {
do_trace "Finished parsing ld.so.conf: '%s'\n" "${ldsoconf}"
}
if [ -z "${1}" ]; then
show_help
elif [ ! -r "${1}" ]; then
do_error "${1}: No such file or directory"
fi
# Build up the full list of search directories
declare -a needed_search_path
do_trace "Adding basic lib dirs\n"
@ -348,5 +400,5 @@ done
declare -a needed_list
declare -a search_rpath
do_trace "Scanning file '%s'\n" "${1}"
do_process_file "${1}"
do_process_file "${1}" initial
do_trace "Done scanning file '%s'\n" "${1}"