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# Copyright (c) 2021 Johannes Stoelp
COMMON_CFLAGS := -g -O0 -Wall -Wextra \
-I../lib/include -nostdlib
run: main
./$<
main: dynld.so main.c ../lib/libcommon.a
gcc -o $@ \
$(COMMON_CFLAGS) \
-Wl,--dynamic-linker=$(CURDIR)/dynld.so \
$(filter %.c %.a, $^)
readelf -W --dynamic $@
readelf -W --string-dump .interp $@
readelf -W --program-headers $@
dynld.so: dynld.S dynld.c ../lib/libcommon.a
gcc -o $@ \
$(COMMON_CFLAGS) \
-fPIC \
-fvisibility=hidden \
-Wl,--entry=dl_start \
-Wl,--no-undefined \
-fno-stack-protector \
$^
@if ! readelf -r $@ | grep 'There are no relocations in this file' >& /dev/null; then \
echo "ERROR: $@ contains relocations while we don't support relocations in $@!"; \
exit 1; \
fi
../lib/libcommon.a:
make -C ../lib
clean:
rm -f main
rm -f dynld.so
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