diff options
author | Wilken Gottwalt | 2023-08-08 16:47:23 +0200 |
---|---|---|
committer | Wilken Gottwalt | 2023-08-08 16:47:23 +0200 |
commit | 5c1c91d62cf00bd2f25ae46992177eef39c25c91 (patch) | |
tree | 17f5d8811b9b98a5270c53cec86113df6cf38b13 | |
parent | d4f57c437ed91503aac4d7c07a7d7f1459249b6f (diff) | |
download | aur-5c1c91d62cf00bd2f25ae46992177eef39c25c91.tar.gz |
add xldd script
- cleanup packaging section
- switch to sha256 hashs
- add famous crosstool-ng xldd script imitating ldd using readelf
-rw-r--r-- | .SRCINFO | 14 | ||||
-rw-r--r-- | PKGBUILD | 23 | ||||
-rw-r--r-- | xldd | 369 |
3 files changed, 392 insertions, 14 deletions
@@ -1,7 +1,7 @@ pkgbase = arm-linux-gnueabihf-glibc pkgdesc = GNU C Library pkgver = 2.38 - pkgrel = 3 + pkgrel = 4 url = https://www.gnu.org/software/libc/ arch = any license = GPL @@ -16,17 +16,19 @@ pkgbase = arm-linux-gnueabihf-glibc replaces = arm-linux-gnueabihf-glibc-headers options = !buildflags options = !strip - options = !lto + options = lto options = staticlibs source = https://ftp.gnu.org/gnu/glibc/glibc-2.38.tar.xz source = https://ftp.gnu.org/gnu/glibc/glibc-2.38.tar.xz.sig source = sdt.h source = sdt-config.h + source = xldd validpgpkeys = 7273542B39962DF7B299931416792B4EA25340F8 validpgpkeys = BC7C7372637EC10C57D7AA6579C43DFBF1CF2187 - md5sums = 778cce0ea6bf7f84ca8caacf4a01f45b - md5sums = SKIP - md5sums = 55e32bca61fcf621143090fc33cde970 - md5sums = 680df504c683640b02ed4a805797c0b2 + sha256sums = fb82998998b2b29965467bc1b69d152e9c307d2cf301c9eafb4555b770ef3fd2 + sha256sums = SKIP + sha256sums = 1ecf90005ff5a65374c7266acb164fa265aff92328593bdca2352acf5dab240d + sha256sums = cdc234959c6fdb43f000d3bb7d1080b0103f4080f5e67bcfe8ae1aaf477812f0 + sha256sums = 96aaa6baacd84f8cd517e5b31d575b766a7af5a3be6fad3c8707da796e8f8ca7 pkgname = arm-linux-gnueabihf-glibc @@ -10,7 +10,7 @@ _target=arm-linux-gnueabihf pkgname=${_target}-glibc pkgver=2.38 -pkgrel=3 +pkgrel=4 pkgdesc="GNU C Library" arch=('any') url="https://www.gnu.org/software/libc/" @@ -20,15 +20,17 @@ makedepends=("${_target}-gcc-stage2>=13.2.0" python) provides=("${_target}-glibc-headers=${pkgver}" "${_target}-eglibc") conflicts=("${_target}-glibc-headers" "${_target}-eglibc") replaces=("${_target}-glibc-headers") -options=(!buildflags !strip !lto staticlibs) +options=(!buildflags !strip lto staticlibs) source=(https://ftp.gnu.org/gnu/glibc/glibc-${pkgver}.tar.xz{,.sig} - sdt.h sdt-config.h) + sdt.h sdt-config.h + xldd) validpgpkeys=(7273542B39962DF7B299931416792B4EA25340F8 # Carlos O'Donell BC7C7372637EC10C57D7AA6579C43DFBF1CF2187) # Siddhesh Poyarekar -md5sums=('778cce0ea6bf7f84ca8caacf4a01f45b' - 'SKIP' - '55e32bca61fcf621143090fc33cde970' - '680df504c683640b02ed4a805797c0b2') +sha256sums=('fb82998998b2b29965467bc1b69d152e9c307d2cf301c9eafb4555b770ef3fd2' + 'SKIP' + '1ecf90005ff5a65374c7266acb164fa265aff92328593bdca2352acf5dab240d' + 'cdc234959c6fdb43f000d3bb7d1080b0103f4080f5e67bcfe8ae1aaf477812f0' + '96aaa6baacd84f8cd517e5b31d575b766a7af5a3be6fad3c8707da796e8f8ca7') prepare() { mkdir -p glibc-build @@ -66,6 +68,8 @@ build() { --with-headers=/usr/${_target}/include \ --enable-add-ons \ --enable-bind-now \ + --enable-cet \ + --enable-fortify-source \ --enable-lock-elision \ --enable-stack-protector=strong \ --enable-stackguard-randomization \ @@ -86,7 +90,10 @@ package() { make install_root="${pkgdir}"/usr/"${_target}" install - # remove unneeded for compilation files + # provide famous ldd script + install -Dm755 "${srcdir}"/xldd "${pkgdir}"/usr/bin/"${_target}"-ldd + + # remove not required files rm -r "$pkgdir"/usr/$_target/{etc,usr/share,var} # provide tracing probes to libstdc++ for exceptions, possibly for other @@ -0,0 +1,369 @@ +#!/bin/bash + +# ldd drop-in replacement for cross-compilation toolchains. + +# This file is a slightly modified version of xldd.in from +# crosstool-ng 1.22.0 + +# In order to use it, copy it in same directory than other +# toolchain binaries and rename it with same tuple. +# (i.e. /opt/arm-sysmic-linux-gnueabihf/bin/arm-sysmic-linux-gnueabihf-ldd) +# Thus, this will automaticaly detect necessary information +# about your toolchain. + +export LC_ALL=C +version="forked from crosstool-ng 1.22.0" +# Change it to 64 if necessary +bits="32" +sed="${SED:-sed}" +grep="${GREP:-grep}" + +my_name="$( basename "${0}" )" +prefix="${0%-ldd}" +gcc="${prefix}-gcc" +readelf="${prefix}-readelf" +fake_load_addr_root="$((0xdeadbeef))" +fake_load_addr_rpath="$((0xdeadc0de))" +fake_load_addr_sysroot="$((0x8badf00d))" +ld_library_path="/lib:/usr/lib" + +do_error() { + printf "%s: %s\n" "${my_name}" "$*" >&2 +} + +do_opt_error() { + do_error "$@" + printf "Try \`%s --help' for more information\n" "${my_name}" >&2 +} + +do_trace() { + local depth=0 + + [ -z "${CT_XLDD_VERBOSE}" ] && return 0 + + for((depth=0; "${#FUNCNAME[$((depth+1))]}" != 0; depth++)); do :; done + printf "%*s" $((4*(depth-1))) "" >&2 + printf -- "$@" >&2 +} + +show_version() { + # Fake a real ldd, just in case some dumb script would check + cat <<_EOF_ +ldd (crosstool-NG) ${version} +Copyright (C) 2010 "Yann E. MORIN" <yann.morin.1998@free.fr> +This is free software; see the source for copying conditions. There is NO +warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. +Licensed under the GPLv2, see the file LICENSES in the top-directory of the +sources for this package. +_EOF_ +} + +show_help() { + cat <<_EOF_ +Usage: ${my_name} [OPTION]... --root DIR FILE... + --help print this help and exit + --version print version information and exit + --root dir treat dir as being the root of the target + -s, --show-system mark libs from the sysroot with a trailing '[*]' + and libs found via RPATH with a trailing '[+]' + +_EOF_ + cat <<_EOF_ |fmt +${my_name} tries to mimick the behavior of a real native ldd, but can be +used in a cross-development environment. Here is how it differs from a +real native ldd: + +If the CT_XLDD_VERBOSE variable is set and non-empty, then ${my_name} will +print a lot of debug messages, explaining how it builds the library +search path, and how each library was found and why. + +The LD_LIBRARY_PATH variable is not used, as it can not reliably be +guessed except at runtime, and we can't run. + +${my_name} does not scan /etc/ld.so.cache, but instead uses /etc/ld.so.conf +(it understands the include directives therein for libces that have that). + +${my_name} also interprets (tries to!) the RPATH/RUNPATH records found in +the dynamic ELF section. Such paths are searched for only relative to +the specified root, not from the sysroot (see below). Also, those paths +are searched for not only for the file they appear in, but also for its +dependencies. + +${my_name} will search the directory specified with --root for libraries +to resolve the NEEDED tags. If --root is not set, then ${my_name} will +use the value in the environment variable \${CT_XLDD_ROOT}. If neither +is set, then this is an error. + +If NEEDED libraries can't be found in the specified root directory, then +${my_name} will also look in the sysroot of the toolchain to see if it +can find them. + +For NEEDED libraries that were found, the output will look like: + libneeded.so => /path/to/libneeded.so (0xloadaddr) + +and for those that were not found, the output will look like: + libneeded.so not found + +The paths are relative to the specified root directory, or to the sysroot +(eg. /lib/libneeded.so, /usr/lib/libneeded.so, and so on...). + +The expected load address 'loadaddr' is a faked address to match the output +of the real ldd, but has no actual meaning (set to some constants for now, +0x8badf00d for libraries from the sysroot, 0xdeadc0de for those found via +the RPATH/RUNPATH records, and 0xdeadbeef for others). +_EOF_ + +# Unimplemeted yet: +# -d, --data-relocs process data relocations +# -r, --function-relocs process data and function relocations +# -u, --unused print unused direct dependencies +# -v, --verbose print all information + +# See also this thread: +# http://sourceware.org/ml/crossgcc/2008-09/msg00057.html +} + +# Parse command line options +root="${CT_XLDD_ROOT}" +show_system= +while true; do + case "${1}" in + --help) + show_help + exit 0 + ;; + --version) + show_version + exit 0 + ;; + --root) + root="$2" + shift + ;; + --root=*) + root="${1#--root=}" + ;; + --show-system|-s) + show_system=1 + ;; + -*) + do_opt_error "unrecognized option \`${1}'" + exit 1 + ;; + *) + break + ;; + esac + shift +done + +# Sanity checks +sysroot="$( "${gcc}" -print-sysroot 2>/dev/null )" +if [ -z "${sysroot}" ]; then + sysroot="$( "${gcc}" -print-file-name=libc.so 2>/dev/null \ + |${sed} -r -e 's:/usr/lib/libc.so$::;' \ + )" +fi +if [ -z "${sysroot}" ]; then + do_error "unable to find sysroot for \`${gcc}'" +fi + +if [ -z "${root}" ]; then + root=${sysroot} +fi +if [ ! -d "${root}" ]; then + do_error "\`${root}': no such file or directory" + exit 1 +fi + +do_report_needed_found() { + local needed="${1}" + local path="${2}" + local origin="${3}" + local loadaddr + local sys + + case "${origin}" in + root) + loadaddr="${fake_load_addr_root}" + ;; + rpath) + loadaddr="${fake_load_addr_rpath}" + if [ -n "${show_system}" ]; then + sys=" [+]" + fi + ;; + sysroot) + loadaddr="${fake_load_addr_sysroot}" + if [ -n "${show_system}" ]; then + sys=" [*]" + fi + ;; + esac + + printf "%8s%s => %s (0x%0*x)%s\n" \ + "" \ + "${needed}" \ + "${path}" \ + "$((bits/4))" \ + "${loadaddr}" \ + "${sys}" +} + +# Search a needed file, scanning ${lib_dir} in the root directory +do_find_needed() { + local needed="${1}" + local -a list + local -a dirs + local found + local where + local base + local d i + + do_trace "Searching for '%s'\n" "${needed}" + + # rpath shall come first! + list=( \ + "rpath:${root}" \ + "root:${root}" \ + "sysroot:${sysroot}" \ + ) + + for i in "${list[@]}"; do + where="${i%%:*}" + base="${i#*:}" + if [ "${where}" = "rpath" ]; then + dirs=( "${search_rpath[@]}" ) + else + dirs=( "${needed_search_path[@]}" ) + fi + for d in "${dirs[@]}"; do + do_trace "-> looking in '%s' (%s)\n" "${d}" "${where}" + if [ -f "${base}${d}/${needed}" ]; then + found="${d}/${needed}" + do_trace "---> found\n" + break 2 + fi + done + done + + if [ -n "${found}" ]; then + do_report_needed_found "${needed}" "${found}" "${where}" + do_process_file "${base}${found}" + else + printf "%8s%s not found\n" "" "${needed}" + fi + + do_trace "Done searching for '%s'\n" "${needed}" +} + +# Scan a file for all NEEDED tags +do_process_file() { + local file="${1}" + local -a save_search_rpath + local n m + local found + + do_trace "Parsing file '%s'\n" "${file}" + + save_search_rpath=( "${search_rpath[@]}" ) + for n in $( "${readelf}" -d "${file}" \ + |"${grep}" -E '\((RPATH|RUNPATH)\)' \ + |"${sed}" -r -e 's/^.*Library r(|un)path:[[:space:]]+\[(.*)\]$/\2/;'\ + ); do + + OIFS=$IFS; + IFS=":"; + narray=($n) + for subn in "${narray[@]}"; do + do_trace "-> adding rpath '%s'\n" "${subn}" + search_rpath+=( "${subn}" ) + done + IFS=$OIFS; + done + do_trace ": search path:\n" + for n in "${search_rpath[@]}" "${needed_search_path[@]}"; do + do_trace ": - '%s'\n" "${n}" + done + do_trace ": end search path\n" + + for n in $( "${readelf}" -d "${file}" \ + |"${grep}" -E '\(NEEDED\)' \ + |"${sed}" -r -e 's/^.*Shared library:[[:space:]]+\[([^]]+)\].*/\1/;' \ + ); do + found=0 + for m in "${needed_list[@]}"; do + [ "${n}" = "${m}" ] && found=1 && break + done + if [ ${found} -ne 0 ]; then + do_trace "-> skipping already known dependency '%s'\n" "${n}" + continue + fi + do_trace "-> handling new dependency '%s'\n" "${n}" + needed_list+=( "${n}" ) + do_find_needed "${n}" + do_trace "-> done handling dependency '%s'\n" "${n}" + done + + search_rpath=( "${save_search_rpath[@]}" ) + + do_trace "Finished parsing file '%s'\n" "${file}" +} + +# Recursively scan a /etc/ld.so.conf file +do_scan_etc_ldsoconf() { + local ldsoconf="${1}" + local g + local f + + [ -f "${ldsoconf}" ] || return 0 + do_trace "Parsing ld.so.conf: '%s'\n" "${ldsoconf}" + + while read line; do + case "${line}" in + include\ *) + g="${root}${line#include }" + do_trace "-> handling include directive '%s'\n" "${g}" + for f in ${g}; do + do_scan_etc_ldsoconf "${f}" + done + do_trace "-> finished handling include directive '%s'\n" "${g}" + ;; + \#*|"") + ;; + *) + do_trace "-> adding search dir '%s'\n" "${line}" + needed_search_path+=( "${line}" ) + ;; + esac + done <"${ldsoconf}" + + do_trace "Finished parsing ld.so.conf: '%s'\n" "${ldsoconf}" +} + +# Build up the full list of search directories +declare -a needed_search_path +do_trace "Adding basic lib dirs\n" +ld_library_path="${ld_library_path}:" +while [ -n "${ld_library_path}" ]; do + d="${ld_library_path%%:*}" + if [ -n "${d}" ]; then + do_trace "-> adding search dir '%s'\n" "${d}" + needed_search_path+=( "${d}" ) + fi + ld_library_path="${ld_library_path#*:}" +done +do_trace "Done adding basic lib dirs\n" +do_trace "Scanning '/etc/ld.so.conf'\n" +do_scan_etc_ldsoconf "${root}/etc/ld.so.conf" +do_trace "Done scanning '/etc/ld.so.conf'\n" +do_trace "Search path:\n" +for p in "${needed_search_path[@]}"; do + do_trace "-> '%s'\n" "${p}" +done + +declare -a needed_list +declare -a search_rpath +do_trace "Scanning file '%s'\n" "${1}" +do_process_file "${1}" +do_trace "Done scanning file '%s'\n" "${1}" |