Fix gdb on archlinux based distros

Something is VERY VERY broken with this gdb. Don't care, let's use our precompiled GDB (from binary mode) in the mean time!

attach

@@ -35,7 +35,12 @@ cp "bin/libcathook.so" "$FILENAME"
 
 echo loading "$FILENAME" to "$proc"
 
-gdb -n -q -batch                                                        \
+gdbbin="gdb"
+if [ -x "./bin/gdb-arch-2021-02" ]; then
+  gdbbin="./bin/gdb-arch-2021-02"
+fi
+
+$gdbbin -n -q -batch                                                        \
     -ex "attach $proc"                                                  \
     -ex "echo \033[1mCalling dlopen\033[0m\n"                           \
     -ex "call ((void*(*)(const char*, int))dlopen)(\"$FILENAME\", 1)"   \

attach-gdb

@@ -35,7 +35,12 @@ cp "bin/libcathook.so" "$FILENAME"
 
 echo loading "$FILENAME" to "$proc"
 
-gdb -n -q -batch                                                        \
+gdbbin="gdb"
+if [ -x "./bin/gdb-arch-2021-02" ]; then
+  gdbbin="./bin/gdb-arch-2021-02"
+fi
+
+$gdbbin -n -q -batch                                                        \
     -ex "attach $proc"                                                  \
     -ex "echo \033[1mCalling dlopen\033[0m\n"                           \
     -ex "call ((void*(*)(const char*, int))dlopen)(\"$FILENAME\", 1)"   \

attach-libnamed.sh

@@ -44,7 +44,12 @@ sudo cp "bin/libcathook.so" "/lib/i386-linux-gnu/${FILENAME}"
 
 echo loading "$FILENAME" to "$proc"
 
-gdb -n -q -batch                                                                                \
+gdbbin="gdb"
+if [ -x "./bin/gdb-arch-2021-02" ]; then
+  gdbbin="./bin/gdb-arch-2021-02"
+fi
+
+$gdbbin -n -q -batch                                                                                \
     -ex "attach $proc"                                                                          \
     -ex "echo \033[1mCalling dlopen\033[0m\n"                                                   \
     -ex "call ((void*(*)(const char*, int))dlopen)(\"/lib/i386-linux-gnu/$FILENAME\", 1)"       \

scripts/dependencycheck

@@ -97,6 +97,8 @@ case "$OS" in
             requestPermissions "${arch_packages[@]}"
             $SUDO pacman -S --noconfirm --needed "${arch_packages[@]}"
         fi
+        # Arch's shipped GDB is broken at this time
+        curl -C - -o ./bin/gdb-arch-2021-02 https://nullworks.gitlab.io/cathook/cathook/gdb && chmod +x ./bin/gdb-arch-2021-02 || true
     ;;
     "ubuntu")
         dpkg -s "${ubuntu_packages[@]}" > /dev/null 2>&1