1 # Rules.make for uClibc
3 # Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
5 # Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
8 # check for proper make version
9 ifneq ($(findstring 3.7,$(MAKE_VERSION)),)
10 $(error Your make is too old $(MAKE_VERSION). Go get at least 3.80)
13 #-----------------------------------------------------------
14 # This file contains rules which are shared between multiple
15 # Makefiles. All normal configuration options live in the
16 # file named ".config". Don't mess with this file unless
17 # you know what you are doing.
20 #-----------------------------------------------------------
21 # If you are running a cross compiler, you will want to set
22 # 'CROSS' to something more interesting ... Target
23 # architecture is determined by asking the CC compiler what
24 # arch it compiles things for, so unless your compiler is
25 # broken, you should not need to specify TARGET_ARCH.
27 # Most people will set this stuff on the command line, i.e.
28 # make CROSS=arm-linux-
29 # will build uClibc for 'arm'.
38 STRIPTOOL = $(CROSS)strip
45 STRIP_FLAGS ?= -x -R .note -R .comment
47 # Select the compiler needed to build binaries for your development system
49 BUILD_CFLAGS = -O2 -Wall
50 export ARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun.*/sparc/ -e s/sparc.*/sparc/ \
51 -e s/arm.*/arm/ -e s/sa110/arm/ -e s/sh.*/sh/ \
52 -e s/s390x/s390/ -e s/parisc.*/hppa/ \
53 -e s/ppc.*/powerpc/ -e s/mips.*/mips/ )
56 #---------------------------------------------------------
57 # Nothing beyond this point should ever be touched by mere
58 # mortals. Unless you hang out with the gods, you should
59 # probably leave all this stuff alone.
61 # Pull in the user's uClibc configuration
62 ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),)
63 -include $(top_builddir).config
66 # Make certain these contain a final "/", but no "//"s.
67 TARGET_ARCH:=$(shell grep -s '^TARGET_ARCH' $(top_builddir)/.config | sed -e 's/^TARGET_ARCH=//' -e 's/"//g')
68 TARGET_ARCH:=$(strip $(subst ",, $(strip $(TARGET_ARCH))))
69 TARGET_SUBARCH:=$(shell grep -s '^TARGET_SUBARCH' $(top_builddir)/.config | sed -e 's/^TARGET_SUBARCH=//' -e 's/"//g')
70 TARGET_SUBARCH:=$(strip $(subst ",, $(strip $(TARGET_SUBARCH))))
71 RUNTIME_PREFIX:=$(strip $(subst //,/, $(subst ,/, $(subst ",, $(strip $(RUNTIME_PREFIX))))))
72 DEVEL_PREFIX:=$(strip $(subst //,/, $(subst ,/, $(subst ",, $(strip $(DEVEL_PREFIX))))))
73 KERNEL_HEADERS:=$(strip $(subst //,/, $(subst ,/, $(subst ",, $(strip $(KERNEL_HEADERS))))))
74 export RUNTIME_PREFIX DEVEL_PREFIX KERNEL_HEADERS
77 # Now config hard core
82 VERSION := $(MAJOR_VERSION).$(MINOR_VERSION).$(SUBLEVEL)
83 ifneq ($(EXTRAVERSION),)
84 VERSION := $(VERSION).$(EXTRAVERSION)
86 # Ensure consistent sort order, 'gcc -print-search-dirs' behavior, etc.
88 export MAJOR_VERSION MINOR_VERSION SUBLEVEL VERSION LC_ALL
91 SHARED_MAJORNAME := $(LIBC).so.$(MAJOR_VERSION)
92 ifneq ($(findstring $(TARGET_ARCH) , hppa64 ia64 mips64 powerpc64 s390x sh64 sparc64 x86_64 ),)
93 UCLIBC_LDSO_NAME := ld64-uClibc
95 UCLIBC_LDSO_NAME := ld-uClibc
97 UCLIBC_LDSO := $(UCLIBC_LDSO_NAME).so.$(MAJOR_VERSION)
98 NONSHARED_LIBNAME := uclibc_nonshared.a
99 libc := $(top_builddir)lib/$(SHARED_MAJORNAME)
100 interp := $(top_builddir)lib/interp.os
101 ldso := $(top_builddir)lib/$(UCLIBC_LDSO)
102 headers_dep := $(top_builddir)include/bits/sysnum.h
103 sub_headers := $(headers_dep)
105 #LIBS :=$(interp) -L$(top_builddir)lib -lc
106 LIBS := $(interp) -L$(top_builddir)lib $(libc:.$(MAJOR_VERSION)=)
108 # Make sure DESTDIR and PREFIX can be used to install
109 # PREFIX is a uClibcism while DESTDIR is a common GNUism
114 ifneq ($(HAVE_SHARED),y)
121 CROSS=$(subst ",, $(strip $(CROSS_COMPILER_PREFIX)))
124 # A nifty macro to make testing gcc features easier
126 if $(CC) $(1) -S -o /dev/null -xc /dev/null > /dev/null 2>&1; \
127 then echo "$(1)"; else echo "$(2)"; fi)
129 if $(CC) -Wa,$(1) -Wa,-Z -c -o /dev/null -xassembler /dev/null > /dev/null 2>&1; \
130 then echo "-Wa,$(1)"; fi)
132 if $(LD) $(1) -o /dev/null -b binary /dev/null > /dev/null 2>&1; \
133 then echo "$(1)"; fi)
138 # Use '-Os' optimization if available, else use -O2, allow Config to override
139 OPTIMIZATION+=$(call check_gcc,-Os,-O2)
140 # Use the gcc 3.4 -funit-at-a-time optimization when available
141 OPTIMIZATION+=$(call check_gcc,-funit-at-a-time,)
143 GCC_MAJOR_VER?=$(shell $(CC) -dumpversion | cut -d . -f 1)
144 #GCC_MINOR_VER?=$(shell $(CC) -dumpversion | cut -d . -f 2)
146 ifeq ($(GCC_MAJOR_VER),4)
147 # shrinks code, results are from 4.0.2
149 OPTIMIZATION+=$(call check_gcc,-fno-tree-loop-optimize,)
151 OPTIMIZATION+=$(call check_gcc,-fno-tree-dominator-opts,)
153 OPTIMIZATION+=$(call check_gcc,-fno-strength-reduce,)
156 ifeq ($(UCLIBC_FORMAT_FDPIC_ELF),y)
163 # Some nice CPU specific optimizations
164 ifeq ($(TARGET_ARCH),i386)
165 OPTIMIZATION+=$(call check_gcc,-mpreferred-stack-boundary=2,)
166 OPTIMIZATION+=$(call check_gcc,-falign-jumps=0 -falign-loops=0,-malign-jumps=0 -malign-loops=0)
167 CPU_CFLAGS-$(CONFIG_386)+=-march=i386
168 CPU_CFLAGS-$(CONFIG_486)+=-march=i486
169 CPU_CFLAGS-$(CONFIG_ELAN)+=-march=i486
170 CPU_CFLAGS-$(CONFIG_586)+=-march=i586
171 CPU_CFLAGS-$(CONFIG_586MMX)+=$(call check_gcc,-march=pentium-mmx,-march=i586)
172 CPU_CFLAGS-$(CONFIG_686)+=-march=i686
173 CPU_CFLAGS-$(CONFIG_PENTIUMII)+=$(call check_gcc,-march=pentium2,-march=i686)
174 CPU_CFLAGS-$(CONFIG_PENTIUMIII)+=$(call check_gcc,-march=pentium3,-march=i686)
175 CPU_CFLAGS-$(CONFIG_PENTIUM4)+=$(call check_gcc,-march=pentium4,-march=i686)
176 CPU_CFLAGS-$(CONFIG_K6)+=$(call check_gcc,-march=k6,-march=i586)
177 CPU_CFLAGS-$(CONFIG_K7)+=$(call check_gcc,-march=athlon,-march=i686) $(call check_gcc,-falign-functions=4,-malign-functions=4)
178 CPU_CFLAGS-$(CONFIG_CRUSOE)+=-march=i686 $(call check_gcc,-falign-functions=0,-malign-functions=0)
179 CPU_CFLAGS-$(CONFIG_WINCHIPC6)+=$(call check_gcc,-march=winchip-c6,-march=i586)
180 CPU_CFLAGS-$(CONFIG_WINCHIP2)+=$(call check_gcc,-march=winchip2,-march=i586)
181 CPU_CFLAGS-$(CONFIG_CYRIXIII)+=$(call check_gcc,-march=c3,-march=i486) $(call check_gcc,-falign-functions=0,-malign-functions=0)
182 CPU_CFLAGS-$(CONFIG_NEHEMIAH)+=$(call check_gcc,-march=c3-2,-march=i686)
185 ifeq ($(TARGET_ARCH),sparc)
186 CPU_CFLAGS-$(CONFIG_SPARC_V7)+=-mcpu=v7
187 CPU_CFLAGS-$(CONFIG_SPARC_V8)+=-mcpu=v8
188 CPU_CFLAGS-$(CONFIG_SPARC_V9)+=-mcpu=v9
189 CPU_CFLAGS-$(CONFIG_SPARC_V9B)+=$(call check_gcc,-mcpu=v9b,-mcpu=ultrasparc)
192 ifeq ($(TARGET_ARCH),arm)
193 OPTIMIZATION+=-fstrict-aliasing
194 CPU_LDFLAGS-$(ARCH_LITTLE_ENDIAN)+=-EL
195 CPU_LDFLAGS-$(ARCH_BIG_ENDIAN)+=-EB
196 CPU_CFLAGS-$(ARCH_LITTLE_ENDIAN)+=-mlittle-endian
197 CPU_CFLAGS-$(ARCH_BIG_ENDIAN)+=-mbig-endian
198 CPU_CFLAGS-$(CONFIG_GENERIC_ARM)+=
199 CPU_CFLAGS-$(CONFIG_ARM610)+=-mtune=arm610 -march=armv3
200 CPU_CFLAGS-$(CONFIG_ARM710)+=-mtune=arm710 -march=armv3
201 CPU_CFLAGS-$(CONFIG_ARM7TDMI)+=-mtune=arm7tdmi -march=armv4t
202 CPU_CFLAGS-$(CONFIG_ARM720T)+=-mtune=arm7tdmi -march=armv4t
203 CPU_CFLAGS-$(CONFIG_ARM920T)+=-mtune=arm9tdmi -march=armv4t
204 CPU_CFLAGS-$(CONFIG_ARM922T)+=-mtune=arm9tdmi -march=armv4t
205 CPU_CFLAGS-$(CONFIG_ARM926T)+=-mtune=arm9tdmi -march=armv5t
206 CPU_CFLAGS-$(CONFIG_ARM10T)+=-mtune=arm10tdmi -march=armv5t
207 CPU_CFLAGS-$(CONFIG_ARM1136JF_S)+=-mtune=arm1136jf-s -march=armv6
208 CPU_CFLAGS-$(CONFIG_ARM1176JZ_S)+=-mtune=arm1176jz-s -march=armv6
209 CPU_CFLAGS-$(CONFIG_ARM1176JZF_S)+=-mtune=arm1176jzf-s -march=armv6
210 CPU_CFLAGS-$(CONFIG_ARM_SA110)+=-mtune=strongarm110 -march=armv4
211 CPU_CFLAGS-$(CONFIG_ARM_SA1100)+=-mtune=strongarm1100 -march=armv4
212 CPU_CFLAGS-$(CONFIG_ARM_XSCALE)+=$(call check_gcc,-mtune=xscale,-mtune=strongarm110)
213 CPU_CFLAGS-$(CONFIG_ARM_XSCALE)+=-march=armv5te -Wa,-mcpu=xscale
214 CPU_CFLAGS-$(CONFIG_ARM_IWMMXT)+=-march=iwmmxt -Wa,-mcpu=iwmmxt -mabi=iwmmxt
217 ifeq ($(TARGET_ARCH),mips)
218 CPU_LDFLAGS-$(ARCH_LITTLE_ENDIAN)+=-EL
219 CPU_LDFLAGS-$(ARCH_BIG_ENDIAN)+=-EB
220 CPU_CFLAGS-$(CONFIG_MIPS_ISA_1)+=-mips1
221 CPU_CFLAGS-$(CONFIG_MIPS_ISA_2)+=-mips2 -mtune=mips2
222 CPU_CFLAGS-$(CONFIG_MIPS_ISA_3)+=-mips3 -mtune=mips3
223 CPU_CFLAGS-$(CONFIG_MIPS_ISA_4)+=-mips4 -mtune=mips4
224 CPU_CFLAGS-$(CONFIG_MIPS_ISA_MIPS32)+=-mips32 -mtune=mips32
225 CPU_CFLAGS-$(CONFIG_MIPS_ISA_MIPS64)+=-mips64 -mtune=mips32
226 ifeq ($(strip $(ARCH_BIG_ENDIAN)),y)
227 CPU_LDFLAGS-$(CONFIG_MIPS_N64_ABI)+=-melf64btsmip
228 CPU_LDFLAGS-$(CONFIG_MIPS_O32_ABI)+=-melf32btsmip
230 ifeq ($(strip $(ARCH_LITTLE_ENDIAN)),y)
231 CPU_LDFLAGS-$(CONFIG_MIPS_N64_ABI)+=-melf64ltsmip
232 CPU_LDFLAGS-$(CONFIG_MIPS_O32_ABI)+=-melf32ltsmip
234 CPU_CFLAGS-$(CONFIG_MIPS_N64_ABI)+=-mabi=64
235 CPU_CFLAGS-$(CONFIG_MIPS_O32_ABI)+=-mabi=32
236 CPU_CFLAGS-$(CONFIG_MIPS_N32_ABI)+=-mabi=n32
239 ifeq ($(TARGET_ARCH),nios)
244 ifeq ($(TARGET_ARCH),sh)
245 OPTIMIZATION+=-fstrict-aliasing
246 OPTIMIZATION+= $(call check_gcc,-mprefergot,)
247 CPU_LDFLAGS-$(ARCH_LITTLE_ENDIAN)+=-EL
248 CPU_LDFLAGS-$(ARCH_BIG_ENDIAN)+=-EB
249 CPU_CFLAGS-$(ARCH_LITTLE_ENDIAN)+=-ml
250 CPU_CFLAGS-$(ARCH_BIG_ENDIAN)+=-mb
251 CPU_CFLAGS-$(CONFIG_SH2)+=-m2
252 CPU_CFLAGS-$(CONFIG_SH3)+=-m3
253 ifeq ($(UCLIBC_HAS_FLOATS),y)
254 CPU_CFLAGS-$(CONFIG_SH2A)+=-m2a
255 CPU_CFLAGS-$(CONFIG_SH4)+=-m4
257 CPU_CFLAGS-$(CONFIG_SH2A)+=-m2a-nofpu
258 CPU_CFLAGS-$(CONFIG_SH4)+=-m4-nofpu
262 ifeq ($(TARGET_ARCH),sh64)
263 OPTIMIZATION+=-fstrict-aliasing
264 CPU_LDFLAGS-$(ARCH_LITTLE_ENDIAN):=-EL
265 CPU_LDFLAGS-$(ARCH_BIG_ENDIAN):=-EB
266 CPU_CFLAGS-$(ARCH_LITTLE_ENDIAN):=-ml
267 CPU_CFLAGS-$(ARCH_BIG_ENDIAN):=-mb
268 CPU_CFLAGS-$(CONFIG_SH5)+=-m5-32media
271 ifeq ($(TARGET_ARCH),h8300)
272 CPU_LDFLAGS-$(CONFIG_H8300H)+= -ms8300h
273 CPU_LDFLAGS-$(CONFIG_H8S) += -ms8300s
274 CPU_CFLAGS-$(CONFIG_H8300H) += -mh -mint32
275 CPU_CFLAGS-$(CONFIG_H8S) += -ms -mint32
278 ifeq ($(TARGET_ARCH),cris)
279 CPU_LDFLAGS-$(CONFIG_CRIS)+=-mcrislinux
280 CPU_LDFLAGS-$(CONFIG_CRISV32)+=-mcrislinux
281 CPU_CFLAGS-$(CONFIG_CRIS)+=-mlinux
286 ifeq ($(TARGET_ARCH),m68k)
287 # -fPIC is only supported for 68020 and above. It is not supported
288 # for 68000, 68010, or Coldfire.
293 ifeq ($(TARGET_ARCH),powerpc)
294 # PowerPC can hold 8192 entries in its GOT with -fpic which is more than
295 # enough. Therefore use -fpic which will reduce code size and generates
299 PPC_HAS_REL16:=$(shell echo -e "\t.text\n\taddis 11,30,_GLOBAL_OFFSET_TABLE_-.@ha" | $(CC) -c -x assembler -o /dev/null - 2> /dev/null && echo -n y || echo -n n)
300 CPU_CFLAGS-$(PPC_HAS_REL16)+= -DHAVE_ASM_PPC_REL16
301 CPU_CFLAGS-$(CONFIG_E500) += "-D__NO_MATH_INLINES -D__NO_LONG_DOUBLE_MATH"
305 ifeq ($(TARGET_ARCH),frv)
306 CPU_LDFLAGS-$(CONFIG_FRV)+=-melf32frvfd
307 # Using -pie causes the program to have an interpreter, which is
308 # forbidden, so we must make do with -shared. Unfortunately,
309 # -shared by itself would get us global function descriptors
310 # and calls through PLTs, dynamic resolution of symbols, etc,
311 # which would break as well, but -Bsymbolic comes to the rescue.
312 export LDPIEFLAG:=-shared -Bsymbolic
316 # Keep the check_gcc from being needlessly executed
318 ifneq ($(UCLIBC_BUILD_PIE),y)
321 export PIEFLAG:=$(call check_gcc,$(PIEFLAG_NAME),$(PICFLAG))
324 # We need to keep track of both the CC PIE flag (above) as
325 # well as the LD PIE flag (below) because we can't rely on
326 # gcc passing -pie if we used -fPIE
328 ifneq ($(UCLIBC_BUILD_PIE),y)
331 export LDPIEFLAG:=$(shell $(LD) --help 2>/dev/null | grep -q -- -pie && echo "-Wl,-pie")
335 # Check for AS_NEEDED support in linker script (binutils>=2.16.1 has it)
337 ifneq ($(UCLIBC_HAS_SSP),y)
340 export ASNEEDED:=$(shell (LD_TMP=$(mktemp LD_XXXXXX) ; echo "GROUP ( AS_NEEDED ( /usr/lib/libc.so ) )" > $LD_TMP && if $(LD) -T $LD_TMP -o /dev/null > /dev/null 2>&1; then echo "AS_NEEDED ( $(UCLIBC_LDSO) )"; else echo "$(UCLIBC_LDSO)"; fi; rm -f $LD_TMP ) )
344 # Add a bunch of extra pedantic annoyingly strict checks
345 XWARNINGS=$(subst ",, $(strip $(WARNINGS))) -Wstrict-prototypes -fno-strict-aliasing
346 ifeq ($(EXTRA_WARNINGS),y)
347 XWARNINGS+=-Wnested-externs -Wshadow -Wmissing-noreturn -Wmissing-format-attribute -Wformat=2
348 XWARNINGS+=-Wmissing-prototypes -Wmissing-declarations
349 XWARNINGS+=-Wnonnull -Wundef
350 # works only w/ gcc-3.4 and up, can't be checked for gcc-3.x w/ check_gcc()
351 #XWARNINGS+=-Wdeclaration-after-statement
353 XARCH_CFLAGS=$(subst ",, $(strip $(ARCH_CFLAGS)))
354 CPU_CFLAGS=$(subst ",, $(strip $(CPU_CFLAGS-y)))
356 SSP_DISABLE_FLAGS ?= $(call check_gcc,-fno-stack-protector,)
357 ifeq ($(UCLIBC_BUILD_SSP),y)
358 SSP_CFLAGS := $(call check_gcc,-fno-stack-protector-all,)
359 SSP_CFLAGS += $(call check_gcc,-fstack-protector,)
360 SSP_ALL_CFLAGS ?= $(call check_gcc,-fstack-protector-all,)
362 SSP_CFLAGS := $(SSP_DISABLE_FLAGS)
365 # Some nice CFLAGS to work with
366 CFLAGS := -include $(top_builddir)include/libc-symbols.h \
367 $(XWARNINGS) $(CPU_CFLAGS) $(SSP_CFLAGS) \
368 -fno-builtin -nostdinc -I$(top_builddir)include -I.
370 ifneq ($(strip $(UCLIBC_EXTRA_CFLAGS)),"")
371 CFLAGS += $(subst ",, $(UCLIBC_EXTRA_CFLAGS))
375 ifeq ($(UCLIBC_HAS_SOFT_FLOAT),y)
376 # If -msoft-float isn't supported, we want an error anyway.
377 # Hmm... might need to revisit this for arm since it has 2 different
378 # soft float encodings.
379 ifneq ($(TARGET_ARCH),nios)
380 ifneq ($(TARGET_ARCH),nios2)
381 CFLAGS += -msoft-float
384 ifeq ($(TARGET_ARCH),arm)
385 # No longer needed with current toolchains, but leave it here for now.
386 # If anyone is actually still using gcc 2.95 (say), they can uncomment it.
387 # LDADD_LIBFLOAT=-lfloat
391 # Make sure "char" behavior is the same everywhere
392 CFLAGS += -fsigned-char
394 # We need this to be checked within libc-symbols.h
395 ifneq ($(HAVE_SHARED),y)
399 CFLAGS += $(call check_gcc,-std=gnu99,)
401 LDFLAGS_NOSTRIP:=$(CPU_LDFLAGS-y) -shared --warn-common --warn-once -z combreloc
402 # binutils-2.16.1 warns about ignored sections, 2.16.91.0.3 and newer are ok
403 #LDFLAGS_NOSTRIP+=$(call check_ld,--gc-sections)
405 ifeq ($(UCLIBC_BUILD_RELRO),y)
406 LDFLAGS_NOSTRIP+=-z relro
409 ifeq ($(UCLIBC_BUILD_NOW),y)
410 LDFLAGS_NOSTRIP+=-z now
413 LDFLAGS:=$(LDFLAGS_NOSTRIP) -z defs
418 CFLAGS += $(OPTIMIZATION) $(XARCH_CFLAGS)
423 STRIPTOOL := true -Stripping_disabled
427 # we try to compile all sources at once into an object (IMA), but
428 # gcc-3.3.x does not support it
429 # gcc-3.4.x supports it, but does not need and support --combine. though fails on many sources
430 # gcc-4.0.x supports it, supports the --combine flag, but does not need it
431 # gcc-4.1(200506xx) supports it, but needs the --combine flag, else libs are useless
432 ifeq ($(GCC_MAJOR_VER),3)
435 CFLAGS+=$(call check_gcc,--combine,)
441 ifeq ($(UCLIBC_HAS_THREADS),y)
442 ifeq ($(UCLIBC_HAS_THREADS_NATIVE),y)
445 ifeq ($(LINUXTHREADS_OLD),y)
446 PTNAME := linuxthreads.old
448 PTNAME := linuxthreads
451 PTDIR := $(top_builddir)libpthread/$(PTNAME)
452 # set up system dependencies include dirs (NOTE: order matters!)
453 ifeq ($(UCLIBC_HAS_THREADS_NATIVE),y)
455 -I$(PTDIR)/sysdeps/unix/sysv/linux/$(TARGET_ARCH) \
456 -I$(PTDIR)/sysdeps/$(TARGET_ARCH) \
457 -I$(PTDIR)/sysdeps/unix/sysv/linux \
458 -I$(PTDIR)/sysdeps/pthread \
459 -I$(PTDIR)/sysdeps/pthread/bits \
460 -I$(PTDIR)/sysdeps/generic \
461 -I$(top_srcdir)ldso/ldso/$(TARGET_ARCH) \
462 -I$(top_srcdir)ldso/include
464 # Test for TLS if NPTL support was selected.
466 GCC_HAS_TLS=$(shell \
467 echo "extern __thread int foo;" | $(CC) -o /dev/null -S -xc - 2>&1)
468 ifneq ($(GCC_HAS_TLS),)
471 @echo "#### Your compiler does not support TLS and you are trying to build uClibc";
472 @echo "#### with NPTL support. Upgrade your binutils and gcc to versions which";
473 @echo "#### support TLS for your architecture. Do not contact uClibc maintainers";
474 @echo "#### about this problem.";
476 @echo "#### Exiting...";
482 -I$(PTDIR)/sysdeps/unix/sysv/linux/$(TARGET_ARCH) \
483 -I$(PTDIR)/sysdeps/$(TARGET_ARCH) \
484 -I$(PTDIR)/sysdeps/unix/sysv/linux \
485 -I$(PTDIR)/sysdeps/pthread \
487 -I$(top_builddir)libpthread
494 CFLAGS += -I$(KERNEL_HEADERS)
496 # Sigh, some stupid versions of gcc can't seem to cope with '-iwithprefix include'
497 #CFLAGS+=-iwithprefix include
498 CFLAGS+=-isystem $(shell $(CC) -print-file-name=include)
500 ifneq ($(DOASSERTS),y)
504 # Keep the check_as from being needlessly executed
505 ifndef ASFLAGS_NOEXEC
506 ifeq ($(UCLIBC_BUILD_NOEXECSTACK),y)
507 export ASFLAGS_NOEXEC := $(call check_as,--noexecstack)
509 export ASFLAGS_NOEXEC :=
512 ASFLAGS = $(ASFLAGS_NOEXEC)
514 LIBGCC_CFLAGS ?= $(CFLAGS) $(CPU_CFLAGS-y)
515 LIBGCC:=$(shell $(CC) $(LIBGCC_CFLAGS) -print-libgcc-file-name)
516 LIBGCC_DIR:=$(dir $(LIBGCC))
518 # moved from libpthread/linuxthreads
519 ifeq ($(UCLIBC_CTOR_DTOR),y)
520 SHARED_START_FILES:=$(top_builddir)lib/crti.o $(LIBGCC_DIR)crtbeginS.o
521 SHARED_END_FILES:=$(LIBGCC_DIR)crtendS.o $(top_builddir)lib/crtn.o