diff --git a/CMakeLists.txt b/CMakeLists.txt
index c0957a0..59d9970 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -78,9 +78,6 @@ include(GNUInstallDirs) # Define GNU standard installation directories
 cmake_host_system_information(RESULT OS_NAME QUERY OS_NAME)
 message(STATUS "Checking for OS_NAME: ${OS_NAME}")
 
-message(STATUS "set(CMAKE_INSTALL_SHAREDIR /usr/local/share)")
-set(CMAKE_INSTALL_SHAREDIR /usr/local/share/)
-
 
 ## Set C build flags
 if (NOT MSVC)
@@ -385,8 +382,8 @@ endif()
 if (WIN32)
 set(CMAKE_CHIPS_DIR ${CMAKE_INSTALL_PREFIX}/config/chips)
 else ()
-set(CMAKE_CHIPS_DIR ${CMAKE_INSTALL_SHAREDIR}/${PROJECT_NAME}/chips)
-endif()
+set(CMAKE_CHIPS_DIR ${CMAKE_INSTALL_FULL_DATADIR}/${PROJECT_NAME}/chips)
+endif ()
 add_definitions( -DSTLINK_CHIPS_DIR="${CMAKE_CHIPS_DIR}" )
 file(GLOB CHIP_FILES ${CMAKE_SOURCE_DIR}/config/chips/*.chip)
 install(FILES ${CHIP_FILES} DESTINATION ${CMAKE_CHIPS_DIR})
diff --git a/README.md b/README.md
index 05f8765..ad1bfe9 100644
--- a/README.md
+++ b/README.md
@@ -74,7 +74,7 @@ We recommend to install `stlink-tools` from the package repository of the used d
 
 - Debian Linux: [(Link)](https://github.com/stlink-org/stlink/releases)
 - Ubuntu Linux: [(Link)](https://github.com/stlink-org/stlink/releases)
-- Arch Linux: [(Link)](https://www.archlinux.org/packages/community/x86_64/stlink)
+- Arch Linux: [(Link)](https://archlinux.org/packages/extra/x86_64/stlink/)
 - Alpine Linux: [(Link)](https://pkgs.alpinelinux.org/packages?name=stlink)
 - Fedora: [(Link)](https://src.fedoraproject.org/rpms/stlink)
 - FreeBSD: Users can install from [freshports](https://www.freshports.org/devel/stlink)
diff --git a/flashloaders/Makefile b/flashloaders/Makefile
index 68ce5a8..73080c6 100644
--- a/flashloaders/Makefile
+++ b/flashloaders/Makefile
@@ -30,6 +30,11 @@ stm32f0.o: stm32f0.s
 stm32vl.o: stm32f0.s
 	$(CC) stm32f0.s $(CFLAGS_ARMV7_M) -o stm32vl.o
 
+# separate rule for STM32Lx.
+# Built for ARMv6-M target to be compatible with both Cortex M0 and Cortex M3.
+stm32lx.o: stm32lx.s
+	$(CC) stm32lx.s $(CFLAGS_ARMV6_M) -o stm32lx.o
+
 # generic rule for all other ARMv7-M
 %.o: %.s
 	$(CC) $< $(CFLAGS_ARMV7_M) -o $@
diff --git a/flashloaders/stm32lx.s b/flashloaders/stm32lx.s
index 69acdea..263f1f8 100644
--- a/flashloaders/stm32lx.s
+++ b/flashloaders/stm32lx.s
@@ -17,8 +17,8 @@ loop:
     str r4, [r1]
 
     # increment address
-    add r0, r0, #4
-    add r1, r1, #4
+    adds r0, r0, #4
+    adds r1, r1, #4
 
     # loop if count > 0
     subs r2, r2, #4
diff --git a/src/st-util/gdb-server.c b/src/st-util/gdb-server.c
index d001395..a0bc3f0 100644
--- a/src/st-util/gdb-server.c
+++ b/src/st-util/gdb-server.c
@@ -150,7 +150,7 @@ int32_t parse_options(int32_t argc, char** argv, st_state_t *st) {
     int32_t c;
     int32_t q;
 
-    while ((c = getopt_long(argc, argv, "hv::p:mn", long_options, &option_index)) != -1)
+    while ((c = getopt_long(argc, argv, "hv::p:mnu", long_options, &option_index)) != -1)
         switch (c) {
         case 0:
             break;
diff --git a/src/stlink-gui/CMakeLists.txt b/src/stlink-gui/CMakeLists.txt
index bbfcc20..042e8d3 100644
--- a/src/stlink-gui/CMakeLists.txt
+++ b/src/stlink-gui/CMakeLists.txt
@@ -16,19 +16,19 @@ if (NOT WIN32 AND NOT CMAKE_CROSSCOMPILING)
 
         # Install desktop application entry
         install(FILES stlink-gui.desktop
-                DESTINATION ${CMAKE_INSTALL_SHAREDIR}/applications)
+                DESTINATION ${CMAKE_INSTALL_FULL_DATADIR}/applications)
 
         # Install icons
         install(FILES icons/stlink-gui.svg
-                DESTINATION ${CMAKE_INSTALL_SHAREDIR}/icons/hicolor/scalable/apps)
+                DESTINATION ${CMAKE_INSTALL_FULL_DATADIR}/icons/hicolor/scalable/apps)
 
         set(GUI_SOURCES gui.c gui.h)
 
         ## stlink-gui
         add_executable(stlink-gui ${GUI_SOURCES})
-        install(FILES stlink-gui.ui DESTINATION ${CMAKE_INSTALL_SHAREDIR}/${PROJECT_NAME})
+        install(FILES stlink-gui.ui DESTINATION ${CMAKE_INSTALL_FULL_DATADIR}/${PROJECT_NAME})
         set_target_properties(stlink-gui PROPERTIES
-                COMPILE_DEFINITIONS STLINK_UI_DIR="${CMAKE_INSTALL_SHAREDIR}/${PROJECT_NAME}")
+                COMPILE_DEFINITIONS STLINK_UI_DIR="${CMAKE_INSTALL_FULL_DATADIR}/${PROJECT_NAME}")
         target_link_libraries(stlink-gui ${STLINK_LIB_SHARED} ${SSP_LIB} ${GTK3_LDFLAGS})
         install(TARGETS stlink-gui DESTINATION ${CMAKE_BINDIR})
     endif()
diff --git a/src/stlink-lib/flash_loader.c b/src/stlink-lib/flash_loader.c
index e1e9e99..ea1f6d9 100644
--- a/src/stlink-lib/flash_loader.c
+++ b/src/stlink-lib/flash_loader.c
@@ -69,12 +69,12 @@ static const uint8_t loader_code_stm32f0[] = {
     0x14, 0x00, 0x00, 0x00
 };
 
-// flashloaders/stm32lx.s
+// flashloaders/stm32lx.s -- compiled for armv6-m for compatibility with both
+// armv6-m cores (STM32L0) and armv7-m cores (STM32L1)
 static const uint8_t loader_code_stm32lx[] = {
     0x04, 0x68, 0x0c, 0x60,
-    0x00, 0xf1, 0x04, 0x00,
-    0x01, 0xf1, 0x04, 0x01,
-    0x04, 0x3a, 0xf7, 0xdc,
+    0x04, 0x30, 0x04, 0x31,
+    0x04, 0x3a, 0xf9, 0xdc,
     0x00, 0xbe, 0x00, 0x00
 };
 
@@ -429,12 +429,11 @@ int32_t stlink_flash_loader_run(stlink_t *sl, flash_loader_t* fl, stm32_addr_t t
 #define L1_WRITE_BLOCK_SIZE 0x80
 #define L0_WRITE_BLOCK_SIZE 0x40
 
-int32_t stm32l1_write_half_pages(stlink_t *sl, stm32_addr_t addr, uint8_t *base, uint32_t len, uint32_t pagesize) {
+int32_t stm32l1_write_half_pages(stlink_t *sl, flash_loader_t *fl, stm32_addr_t addr, uint8_t *base, uint32_t len, uint32_t pagesize) {
   uint32_t count, off;
   uint32_t num_half_pages = len / pagesize;
   uint32_t val;
   uint32_t flash_regs_base = get_stm32l0_flash_base(sl);
-  flash_loader_t fl;
   bool use_loader = true;
   int32_t ret = 0;
 
@@ -449,7 +448,7 @@ int32_t stm32l1_write_half_pages(stlink_t *sl, stm32_addr_t addr, uint8_t *base,
 
   for (count = 0; count < num_half_pages; count++) {
     if (use_loader) {
-      ret = stlink_flash_loader_run(sl, &fl, addr + count * pagesize, base + count * pagesize, pagesize);
+      ret = stlink_flash_loader_run(sl, fl, addr + count * pagesize, base + count * pagesize, pagesize);
       if (ret && count == 0) {
         /* It seems that stm32lx devices have a problem when it is blank */
         WLOG("Failed to use flash loader, fallback to soft write\n");
@@ -771,7 +770,7 @@ int32_t stlink_flashloader_write(stlink_t *sl, flash_loader_t *fl, stm32_addr_t
     off = 0;
 
     if (len > pagesize) {
-      if (stm32l1_write_half_pages(sl, addr, base, len, pagesize)) {
+      if (stm32l1_write_half_pages(sl, fl, addr, base, len, pagesize)) {
         return (-1);
       } else {
         off = (size_t)(len / pagesize) * pagesize;
diff --git a/src/stlink-lib/flash_loader.h b/src/stlink-lib/flash_loader.h
index 33edc7a..6ac2e4f 100644
--- a/src/stlink-lib/flash_loader.h
+++ b/src/stlink-lib/flash_loader.h
@@ -18,7 +18,7 @@ int32_t stlink_flash_loader_run(stlink_t *sl, flash_loader_t* fl, stm32_addr_t t
 
 /* === Functions from old header file flashloader.h === */
 
-int32_t stm32l1_write_half_pages(stlink_t *sl, stm32_addr_t addr, uint8_t *base, uint32_t len, uint32_t pagesize);
+int32_t stm32l1_write_half_pages(stlink_t *sl, flash_loader_t *fl, stm32_addr_t addr, uint8_t *base, uint32_t len, uint32_t pagesize);
 // static void set_flash_cr_pg(stlink_t *sl, uint32_t bank);
 // static void set_dma_state(stlink_t *sl, flash_loader_t *fl, int32_t bckpRstr);
 int32_t stlink_flashloader_start(stlink_t *sl, flash_loader_t *fl);