Hi, After compiling uclibc with gcc-3.4.6 (current hardened compiler) any program linked with -lpthread just segfaulted.
shows up that gcc first omits the framepointer then tries to access it. To work around it, gcc-3.4.6 need to add -fno-omit-framepointer to libpthreads.old/* attatched patch will help you to build a working hardened uclibc-0.9.30. -nc
--- uClibc-0.9.30.orig/libpthread/linuxthreads.old/Makefile.in Thu Nov 13 09:53:27 2008 +++ uClibc-0.9.30/libpthread/linuxthreads.old/Makefile.in Thu Nov 13 10:01:35 2008 @@ -59,6 +59,13 @@ libc-static-y += $(libpthread_OUT)/libc_pthread_init.o libc-shared-y += $(libpthread_libc_OBJ:.o=.oS) +ifeq ($(TARGET_ARCH),i386) +# Most files must not be compiled without frame pointer since we need +# the frame base address which is stored in %ebp unless the frame pointer +# is optimized out. +CFLAGS += -fno-omit-frame-pointer -mpreferred-stack-boundary=4 +endif + libpthread-static-y += $(patsubst $(libpthread_DIR)/%.c,$(libpthread_OUT)/%.o,$(libpthread_SPEC_SRC)) libpthread-shared-y += $(patsubst $(libpthread_DIR)/%.c,$(libpthread_OUT)/%.oS,$(libpthread_SPEC_SRC))
