Add patch at bugs 274. From Peter Manzinger.

Rules.mak

@@ -91,6 +91,8 @@ endif
 # A nifty macro to make testing gcc features easier
 check_gcc=$(shell if $(CC) $(1) -S -o /dev/null -xc /dev/null > /dev/null 2>&1; \
 	then echo "$(1)"; else echo "$(2)"; fi)
+check_as=$(shell if $(CC) -Wa,$(1) -Wa,-Z -c -o /dev/null -xassembler /dev/null > /dev/null 2>&1; \
+	then echo "-Wa,$(1)"; fi)
 
 # Make certain these contain a final "/", but no "//"s.
 TARGET_ARCH:=$(shell grep -s ^TARGET_ARCH $(TOPDIR)/.config | sed -e 's/^TARGET_ARCH=//' -e 's/"//g')
@@ -211,7 +213,6 @@ endif
 ifeq ($(strip $(TARGET_ARCH)),frv)
 	CPU_LDFLAGS-$(CONFIG_FRV)+=-melf32frvfd
 	CPU_CFLAGS-$(CONFIG_FRV)+=-mfdpic
-	PICFLAG=-fPIC -DPIC
 	# Using -pie causes the program to have an interpreter, which is
 	# forbidden, so we must make do with -shared.  Unfortunately,
 	# -shared by itself would get us global function descriptors
@@ -251,27 +252,28 @@ PIEFLAG=
 LDPIEFLAG=
 endif
 
-SSP_DISABLE_FLAGS=$(call check_gcc,-fno-stack-protector,)
+SSP_DISABLE_FLAGS:=$(call check_gcc,-fno-stack-protector,)
 ifeq ($(UCLIBC_BUILD_SSP),y)
-SSP_CFLAGS=$(call check_gcc,-fno-stack-protector-all,)
+SSP_CFLAGS:=$(call check_gcc,-fno-stack-protector-all,)
 SSP_CFLAGS+=$(call check_gcc,-fstack-protector,)
-SSP_ALL_CFLAGS=$(call check_gcc,-fstack-protector-all,)
+SSP_ALL_CFLAGS:=$(call check_gcc,-fstack-protector-all,)
 else
-SSP_CFLAGS=$(SSP_DISABLE_FLAGS)
+SSP_CFLAGS:=$(SSP_DISABLE_FLAGS)
 endif
 
 # Some nice CFLAGS to work with
-CFLAGS=$(XWARNINGS) $(OPTIMIZATION) $(XARCH_CFLAGS) $(CPU_CFLAGS) $(SSP_CFLAGS) \
+CFLAGS:=$(XWARNINGS) $(CPU_CFLAGS) $(SSP_CFLAGS) \
 	-fno-builtin -nostdinc -D_LIBC -I$(TOPDIR)include -I.
+LDFLAGS_NOSTRIP:=$(CPU_LDFLAGS-y) -shared --warn-common --warn-once -z combreloc -z defs
 
 ifeq ($(DODEBUG),y)
     #CFLAGS += -g3
-    CFLAGS = $(XWARNINGS) -O0 -g3 $(CPU_CFLAGS) $(SSP_CFLAGS) \
-	-fno-builtin -nostdinc -D_LIBC -I$(TOPDIR)include -I.
-    LDFLAGS:= $(CPU_LDFLAGS-y) -shared --warn-common --warn-once -z combreloc
+    CFLAGS += -O0 -g3
+    LDFLAGS := $(LDFLAGS_NOSTRIP)
     STRIPTOOL:= true -Since_we_are_debugging
 else
-    LDFLAGS := $(CPU_LDFLAGS-y) -s -shared --warn-common --warn-once -z combreloc
+    CFLAGS += $(OPTIMIZATION) $(XARCH_CFLAGS)
+    LDFLAGS := $(LDFLAGS_NOSTRIP) -s
 endif
 
 ifeq ($(UCLIBC_BUILD_RELRO),y)
@@ -307,8 +309,7 @@ endif
 
 ASFLAGS = $(CFLAGS)
 ifeq ($(UCLIBC_BUILD_NOEXECSTACK),y)
-check_as_noexecstack=$(shell if $(LD) --help | grep -q "z noexecstack"; then echo "-Wa,--noexecstack"; fi)
-ASFLAGS += $(check_as_noexecstack)
+ASFLAGS += $(call check_as,--noexecstack)
 endif
 
 LIBGCC_CFLAGS ?= $(CFLAGS) $(CPU_CFLAGS-y)

extra/Configs/Config.in

@@ -1231,6 +1231,7 @@ config CROSS_COMPILER_PREFIX
 
 config DODEBUG
 	bool "Build uClibc with debugging symbols"
+	select PTHREADS_DEBUG_SUPPORT if UCLIBC_HAS_THREADS
 	default n
 	help
 	  Say Y here if you wish to compile uClibc with debugging symbols.

ldso/ldso/Makefile

@@ -24,7 +24,7 @@ LDSO_FULLNAME=ld-uClibc-$(MAJOR_VERSION).$(MINOR_VERSION).$(SUBLEVEL).so
 # reset to initial (disabling predefined CFLAGS)
 ASFLAGS=
 ifeq ($(UCLIBC_BUILD_NOEXECSTACK),y)
-ASFLAGS+=$(check_as_noexecstack)
+ASFLAGS+=$(call check_as,--noexecstack)
 endif
 
 XXFLAGS=$(XWARNINGS) $(SSP_DISABLE_FLAGS)

libpthread/Makefile

@@ -19,8 +19,6 @@
 TOPDIR=../
 include $(TOPDIR)Rules.mak
 
-CFLAGS+=$(SSP_ALL_CFLAGS)
-
 #Adjust the soname version to avoid namespace collisions with glibc's libpthread
 LIBPTHREAD=libpthread.a
 LIBPTHREAD_SHARED=libpthread.so
@@ -33,25 +31,8 @@ LIBTHREAD_DB_SHARED_FULLNAME=libthread_db-$(MAJOR_VERSION).$(MINOR_VERSION).$(SU
 DIRS=
 ifeq ($(strip $(UCLIBC_HAS_THREADS)),y)
 	DIRS+=linuxthreads
-	LDFLAGS_THREAD:= $(CPU_LDFLAGS-y) -shared --warn-common --warn-once -z combreloc -z defs
-ifeq ($(UCLIBC_BUILD_RELRO),y)
-	LDFLAGS_THREAD+=-z relro
-endif
-ifeq ($(UCLIBC_BUILD_NOW),y)
-	LDFLAGS_THREAD+=-z now
-endif
 ifeq ($(strip $(PTHREADS_DEBUG_SUPPORT)),y)
 	DIRS+=linuxthreads_db
-	LDFLAGS_THREAD_DB:= $(CPU_LDFLAGS-y) -shared --warn-common --warn-once -z combreloc
-endif
-ifeq ($(DODEBUG),n)
-	LDFLAGS_THREAD_DB+=-s
-ifeq ($(UCLIBC_BUILD_RELRO),y)
-       LDFLAGS_THREAD_DB+=-z relro
-endif
-ifeq ($(UCLIBC_BUILD_NOW),y)
-       LDFLAGS_THREAD_DB+=-z now
-endif
 endif
 endif
 
@@ -87,7 +68,7 @@ $(OBJ): Makefile
 
 shared: all
 ifeq ($(strip $(UCLIBC_HAS_THREADS)),y)
-	$(LD) $(LDFLAGS_THREAD) -soname=$(LIBPTHREAD_SHARED).$(MAJOR_VERSION) \
+	$(LD) $(LDFLAGS_NOSTRIP) -soname=$(LIBPTHREAD_SHARED).$(MAJOR_VERSION) \
 		-o $(LIBPTHREAD_SHARED_FULLNAME) $(SHARED_START_FILES) --whole-archive $(LIBPTHREAD) \
 		--no-whole-archive $(TOPDIR)libc/misc/internals/interp.o \
 		-L$(TOPDIR)lib -lc $(LDADD_LIBFLOAT) $(LIBGCC) \
@@ -102,7 +83,7 @@ ifeq ($(strip $(UCLIBC_HAS_THREADS)),y)
 		$(TOPDIR)lib/$(LIBPTHREAD_SHARED).$(MAJOR_VERSION)
 endif
 ifeq ($(strip $(PTHREADS_DEBUG_SUPPORT)),y)
-	$(LD) $(LDFLAGS_THREAD_DB) -soname=$(LIBTHREAD_DB_SHARED).1 \
+	$(LD) $(LDFLAGS) --warn-unresolved-symbols -soname=$(LIBTHREAD_DB_SHARED).1 \
 		-o $(LIBTHREAD_DB_SHARED_FULLNAME) --whole-archive $(LIBTHREAD_DB) \
 		--no-whole-archive $(TOPDIR)libc/misc/internals/interp.o \
 		-L$(TOPDIR)lib -lc $(LDADD_LIBFLOAT) $(LIBGCC)

libpthread/linuxthreads/Makefile

@@ -33,18 +33,15 @@ SYSDEPS_DIR:=$(TARGET_ARCH)/sparc32
 else
 SYSDEPS_DIR:=$(TARGET_ARCH)
 endif
+CFLAGS += $(SSP_ALL_CFLAGS)
 #This stuff will not compile without at least -O1
 CFLAGS :=$(CFLAGS:-O0=-O1)
 
 
 # set up system dependencies include dirs (NOTE: order matters!)
 PTDIR = $(TOPDIR)libpthread/linuxthreads/
-SYSDEPINC = -I$(PTDIR)sysdeps/unix/sysv/linux \
-            -I$(PTDIR)sysdeps/pthread \
-            -I$(PTDIR)sysdeps/unix/sysv \
-            -I$(PTDIR)sysdeps/unix/unix \
+SYSDEPINC = -I$(PTDIR)sysdeps/pthread \
             -I$(PTDIR)sysdeps/$(TARGET_ARCH) \
-            -I$(PTDIR)sysdeps \
             -I$(TOPDIR)libc/sysdeps/linux/$(TARGET_ARCH)
 CFLAGS += $(SYSDEPINC)
 

libpthread/linuxthreads_db/Makefile

@@ -30,13 +30,10 @@ endif
 
 # set up system dependencies include dirs (NOTE: order matters!)
 PTDIR = $(TOPDIR)libpthread/linuxthreads/
-SYSDEPINC = -I$(PTDIR)sysdeps/unix/sysv/linux \
-            -I$(PTDIR)sysdeps/pthread \
-            -I$(PTDIR)sysdeps/unix/sysv \
-            -I$(PTDIR)sysdeps/unix/unix \
+SYSDEPINC = -I$(PTDIR)sysdeps/pthread \
             -I$(PTDIR)sysdeps/$(TARGET_ARCH) \
-            -I$(PTDIR)sysdeps \
             -I$(TOPDIR)libc/sysdeps/linux/$(TARGET_ARCH)
+#CFLAGS += $(SSP_ALL_CFLAGS)
 CFLAGS += $(SYSDEPINC) -DLIBPTHREAD_SO="\"libpthread.so.$(MAJOR_VERSION)\""
 
 CSRC=	td_init.c td_log.c td_ta_delete.c td_ta_get_nthreads.c		\