125 lines
3.9 KiB
Bash
Executable File
125 lines
3.9 KiB
Bash
Executable File
#!/bin/bash
|
|
# ============================================================================
|
|
# DarkForge Linux — Phase 0, Chapter 5: Glibc (Cross-compiled)
|
|
# ============================================================================
|
|
# Purpose: Cross-compile the GNU C Library (glibc) for the target system.
|
|
# This is the core C library that every program on the final system
|
|
# will link against. After this step, we can compile programs that
|
|
# actually run on the target.
|
|
# Inputs: ${LFS}/sources/glibc-2.43.tar.xz, glibc-fhs-1.patch
|
|
# Outputs: Glibc installed to ${LFS}/usr/lib/, ${LFS}/usr/include/
|
|
# Assumes: Binutils Pass 1 + GCC Pass 1 + Linux Headers complete
|
|
# Ref: LFS 13.0 §5.5
|
|
# ============================================================================
|
|
|
|
set -euo pipefail
|
|
source "${LFS}/sources/darkforge-env.sh"
|
|
|
|
PACKAGE="glibc"
|
|
VERSION="2.43"
|
|
SRCDIR="${LFS}/sources"
|
|
|
|
echo "=== Building ${PACKAGE}-${VERSION} (Cross-compiled) ==="
|
|
|
|
cd "${SRCDIR}"
|
|
tar -xf "${PACKAGE}-${VERSION}.tar.xz"
|
|
cd "${PACKAGE}-${VERSION}"
|
|
|
|
# Create LSB compliance symlinks
|
|
# The dynamic linker path must be correct for the target architecture
|
|
case $(uname -m) in
|
|
i?86)
|
|
ln -sfv ld-linux.so.2 "${LFS}/lib/ld-lsb.so.3"
|
|
;;
|
|
x86_64)
|
|
ln -sfv ../lib/ld-linux-x86-64.so.2 "${LFS}/lib64"
|
|
ln -sfv ../lib/ld-linux-x86-64.so.2 "${LFS}/lib64/ld-lsb-x86-64.so.3"
|
|
;;
|
|
esac
|
|
|
|
# Apply the FHS (Filesystem Hierarchy Standard) patch
|
|
# This makes glibc install some programs in /usr/sbin instead of /sbin
|
|
patch -Np1 -i ../glibc-fhs-1.patch
|
|
|
|
mkdir -v build
|
|
cd build
|
|
|
|
# Tell configure to install root-level sbin programs in /usr/sbin
|
|
echo "rootsbindir=/usr/sbin" > configparms
|
|
|
|
# Configure glibc for cross-compilation
|
|
# --host=$LFS_TGT: cross-compile for our target
|
|
# --build=...: specify the build system (auto-detected)
|
|
# --enable-kernel=5.4: support kernels 5.4 and newer
|
|
# --disable-nscd: don't build the name service cache daemon
|
|
# libc_cv_slibdir=/usr/lib: install shared libs in /usr/lib (not /lib64)
|
|
../configure \
|
|
--prefix=/usr \
|
|
--host="${LFS_TGT}" \
|
|
--build="$(../scripts/config.guess)" \
|
|
--disable-nscd \
|
|
libc_cv_slibdir=/usr/lib \
|
|
--enable-kernel=5.4
|
|
|
|
make
|
|
make DESTDIR="${LFS}" install
|
|
|
|
# Fix the hardcoded path in the ldd script
|
|
sed '/RTLDLIST=/s@/usr@@g' -i "${LFS}/usr/bin/ldd"
|
|
|
|
# ============================================================================
|
|
# CRITICAL SANITY CHECKS — Do not skip these!
|
|
# If any check fails, STOP and investigate before proceeding.
|
|
# ============================================================================
|
|
echo ""
|
|
echo ">>> Running glibc sanity checks..."
|
|
|
|
echo 'int main(){}' | "${LFS_TGT}-gcc" -x c - -v -Wl,--verbose &> dummy.log
|
|
|
|
# Check 1: Verify dynamic linker path
|
|
echo "--- Check 1: Dynamic linker path ---"
|
|
RESULT=$(readelf -l a.out | grep ': /lib')
|
|
echo "${RESULT}"
|
|
if ! echo "${RESULT}" | grep -q '/lib64/ld-linux-x86-64.so.2'; then
|
|
echo "FAIL: Dynamic linker path is wrong!"
|
|
exit 1
|
|
fi
|
|
echo "PASS"
|
|
|
|
# Check 2: Verify start files are found
|
|
echo "--- Check 2: Start files ---"
|
|
grep -E -o "${LFS}/lib.*/S?crt[1in].*succeeded" dummy.log
|
|
echo "PASS"
|
|
|
|
# Check 3: Verify header search paths
|
|
echo "--- Check 3: Header search paths ---"
|
|
grep -B3 "^ ${LFS}/usr/include" dummy.log
|
|
echo "PASS"
|
|
|
|
# Check 4: Verify linker search paths
|
|
echo "--- Check 4: Linker search paths ---"
|
|
grep 'SEARCH.*/usr/lib' dummy.log | sed 's|; |\n|g'
|
|
echo "PASS"
|
|
|
|
# Check 5: Verify correct libc is found
|
|
echo "--- Check 5: libc.so.6 location ---"
|
|
grep "/lib.*/libc.so.6 " dummy.log
|
|
echo "PASS"
|
|
|
|
# Check 6: Verify dynamic linker location
|
|
echo "--- Check 6: Dynamic linker found ---"
|
|
grep found dummy.log
|
|
echo "PASS"
|
|
|
|
# Cleanup test files
|
|
rm -v a.out dummy.log
|
|
|
|
echo ""
|
|
|
|
# Cleanup source
|
|
cd "${SRCDIR}"
|
|
rm -rf "${PACKAGE}-${VERSION}"
|
|
|
|
echo "=== ${PACKAGE}-${VERSION} cross-compilation complete ==="
|
|
echo "=== All sanity checks passed ==="
|