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platform_bionic/libc/Android.mk
Nick Kralevich 9d40326830 arm: rewrite crtbegin* as C files. 
Rewrite
 crtbegin.S     -> crtbegin.c
 crtbegin_so.S  -> crtbegin_so.c

This change allows us to generate PIC code without relying
on text relocations.

As a consequence of this rewrite, also rewrite
  __dso_handle.S    -> __dso_handle.c
  __dso_handle_so.S -> __dso_handle_so.c
  atexit.S          -> atexit.c

In crtbegin.c _start, place the __PREINIT_ARRAY__, __INIT_ARRAY__,
__FINI_ARRAY__, and __CTOR_LIST__ variables onto the stack, instead of
passing a pointer to the text section of the binary.

This change appears sorta wonky, as I attempted to preserve,
as much as possible, the structure of the original assembly.
As a result, you have C files including other C files, and other
programming uglyness.

Result: This change reduces the number of files with text-relocations
from 315 to 19 on my Android build.

Before:
  $ scanelf -aR $OUT/system | grep TEXTREL | wc -l
  315

After:
  $ scanelf -aR $OUT/system | grep TEXTREL | wc -l
  19

Change-Id: Ib9f98107c0eeabcb606e1ddc7ed7fc4eba01c9c4
2012-06-01 14:41:27 -07:00

775 lines
20 KiB
Makefile
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LOCAL_PATH:= $(call my-dir)
include $(LOCAL_PATH)/arch-$(TARGET_ARCH)/syscalls.mk
# Define the common source files for all the libc instances
# =========================================================
libc_common_src_files := \
$(syscall_src) \
unistd/abort.c \
unistd/alarm.c \
unistd/brk.c \
unistd/creat.c \
unistd/daemon.c \
unistd/eventfd.c \
unistd/exec.c \
unistd/fcntl.c \
unistd/fnmatch.c \
unistd/fstatfs.c \
unistd/ftime.c \
unistd/ftok.c \
unistd/getcwd.c \
unistd/getdtablesize.c \
unistd/gethostname.c \
unistd/getopt_long.c \
unistd/getpgrp.c \
unistd/getpriority.c \
unistd/getpt.c \
unistd/initgroups.c \
unistd/isatty.c \
unistd/issetugid.c \
unistd/killpg.c \
unistd/lseek64.c \
unistd/mmap.c \
unistd/nice.c \
unistd/open.c \
unistd/openat.c \
unistd/opendir.c \
unistd/pathconf.c \
unistd/perror.c \
unistd/popen.c \
unistd/pread.c \
unistd/pselect.c \
unistd/ptsname.c \
unistd/ptsname_r.c \
unistd/pwrite.c \
unistd/raise.c \
unistd/reboot.c \
unistd/recv.c \
unistd/sbrk.c \
unistd/send.c \
unistd/setegid.c \
unistd/setuid.c \
unistd/seteuid.c \
unistd/setreuid.c \
unistd/setresuid.c \
unistd/setpgrp.c \
unistd/sigblock.c \
unistd/siginterrupt.c \
unistd/siglist.c \
unistd/signal.c \
unistd/signame.c \
unistd/sigsetmask.c \
unistd/sigsuspend.c \
unistd/sigwait.c \
unistd/sleep.c \
unistd/statfs.c \
unistd/strsignal.c \
unistd/syslog.c \
unistd/system.c \
unistd/tcgetpgrp.c \
unistd/tcsetpgrp.c \
unistd/time.c \
unistd/umount.c \
unistd/unlockpt.c \
unistd/usleep.c \
unistd/wait.c \
stdio/asprintf.c \
stdio/clrerr.c \
stdio/fclose.c \
stdio/fdopen.c \
stdio/feof.c \
stdio/ferror.c \
stdio/fflush.c \
stdio/fgetc.c \
stdio/fgetln.c \
stdio/fgetpos.c \
stdio/fgets.c \
stdio/fileno.c \
stdio/findfp.c \
stdio/flags.c \
stdio/flockfile.c \
stdio/fopen.c \
stdio/fprintf.c \
stdio/fpurge.c \
stdio/fputc.c \
stdio/fputs.c \
stdio/fread.c \
stdio/freopen.c \
stdio/fscanf.c \
stdio/fseek.c \
stdio/fsetpos.c \
stdio/ftell.c \
stdio/funopen.c \
stdio/fvwrite.c \
stdio/fwalk.c \
stdio/fwrite.c \
stdio/getc.c \
stdio/getchar.c \
stdio/gets.c \
stdio/makebuf.c \
stdio/mktemp.c \
stdio/printf.c \
stdio/putc.c \
stdio/putchar.c \
stdio/puts.c \
stdio/putw.c \
stdio/refill.c \
stdio/remove.c \
stdio/rewind.c \
stdio/rget.c \
stdio/scanf.c \
stdio/setbuf.c \
stdio/setbuffer.c \
stdio/setvbuf.c \
stdio/snprintf.c\
stdio/sprintf.c \
stdio/sscanf.c \
stdio/stdio.c \
stdio/tempnam.c \
stdio/tmpfile.c \
stdio/tmpnam.c \
stdio/ungetc.c \
stdio/vasprintf.c \
stdio/vfprintf.c \
stdio/vfscanf.c \
stdio/vprintf.c \
stdio/vsnprintf.c \
stdio/vsprintf.c \
stdio/vscanf.c \
stdio/vsscanf.c \
stdio/wbuf.c \
stdio/wsetup.c \
stdlib/_rand48.c \
stdlib/assert.c \
stdlib/atexit.c \
stdlib/atoi.c \
stdlib/atol.c \
stdlib/atoll.c \
stdlib/bsearch.c \
stdlib/ctype_.c \
stdlib/div.c \
stdlib/exit.c \
stdlib/getenv.c \
stdlib/jrand48.c \
stdlib/ldiv.c \
stdlib/lldiv.c \
stdlib/locale.c \
stdlib/lrand48.c \
stdlib/mrand48.c \
stdlib/nrand48.c \
stdlib/putenv.c \
stdlib/qsort.c \
stdlib/seed48.c \
stdlib/setenv.c \
stdlib/setjmperr.c \
stdlib/srand48.c \
stdlib/strntoimax.c \
stdlib/strntoumax.c \
stdlib/strtod.c \
stdlib/strtoimax.c \
stdlib/strtol.c \
stdlib/strtoll.c \
stdlib/strtoul.c \
stdlib/strtoull.c \
stdlib/strtoumax.c \
stdlib/tolower_.c \
stdlib/toupper_.c \
stdlib/wchar.c \
string/index.c \
string/memccpy.c \
string/memchr.c \
string/memmem.c \
string/memrchr.c \
string/memswap.c \
string/strcasecmp.c \
string/strcasestr.c \
string/strcat.c \
string/strchr.c \
string/strcoll.c \
string/strcspn.c \
string/strdup.c \
string/strerror.c \
string/strerror_r.c \
string/strlcat.c \
string/strlcpy.c \
string/strncat.c \
string/strncpy.c \
string/strndup.c \
string/strnlen.c \
string/strpbrk.c \
string/strrchr.c \
string/strsep.c \
string/strspn.c \
string/strstr.c \
string/strtok.c \
string/strtotimeval.c \
string/strxfrm.c \
wchar/wcpcpy.c \
wchar/wcpncpy.c \
wchar/wcscasecmp.c \
wchar/wcscat.c \
wchar/wcschr.c \
wchar/wcscmp.c \
wchar/wcscoll.c \
wchar/wcscpy.c \
wchar/wcscspn.c \
wchar/wcsdup.c \
wchar/wcslcat.c \
wchar/wcslcpy.c \
wchar/wcslen.c \
wchar/wcsncasecmp.c \
wchar/wcsncat.c \
wchar/wcsncmp.c \
wchar/wcsncpy.c \
wchar/wcsnlen.c \
wchar/wcspbrk.c \
wchar/wcsrchr.c \
wchar/wcsspn.c \
wchar/wcsstr.c \
wchar/wcstok.c \
wchar/wcswidth.c \
wchar/wcsxfrm.c \
wchar/wmemchr.c \
wchar/wmemcmp.c \
wchar/wmemcpy.c \
wchar/wmemmove.c \
wchar/wmemset.c \
inet/bindresvport.c \
inet/inet_addr.c \
inet/inet_aton.c \
inet/inet_ntoa.c \
inet/inet_ntop.c \
inet/inet_pton.c \
inet/ether_aton.c \
inet/ether_ntoa.c \
tzcode/asctime.c \
tzcode/difftime.c \
tzcode/localtime.c \
tzcode/strftime.c \
tzcode/strptime.c \
bionic/__set_errno.c \
bionic/cpuacct.c \
bionic/arc4random.c \
bionic/basename.c \
bionic/basename_r.c \
bionic/clearenv.c \
bionic/dirname.c \
bionic/dirname_r.c \
bionic/drand48.c \
bionic/erand48.c \
bionic/err.c \
bionic/fdprintf.c \
bionic/fork.c \
bionic/fts.c \
bionic/if_nametoindex.c \
bionic/if_indextoname.c \
bionic/ioctl.c \
bionic/ldexp.c \
bionic/libc_init_common.c \
bionic/logd_write.c \
bionic/md5.c \
bionic/memmove_words.c \
bionic/pututline.c \
bionic/realpath.c \
bionic/sched_getaffinity.c \
bionic/sched_getcpu.c \
bionic/sched_cpualloc.c \
bionic/sched_cpucount.c \
bionic/semaphore.c \
bionic/sha1.c \
bionic/ssp.c \
bionic/stubs.c \
bionic/system_properties.c \
bionic/tdelete.c \
bionic/tdestroy.c \
bionic/time64.c \
bionic/tfind.c \
bionic/thread_atexit.c \
bionic/tsearch.c \
bionic/utime.c \
bionic/utmp.c \
netbsd/gethnamaddr.c \
netbsd/isc/ev_timers.c \
netbsd/isc/ev_streams.c \
netbsd/inet/nsap_addr.c \
netbsd/resolv/__dn_comp.c \
netbsd/resolv/__res_close.c \
netbsd/resolv/__res_send.c \
netbsd/resolv/herror.c \
netbsd/resolv/res_comp.c \
netbsd/resolv/res_data.c \
netbsd/resolv/res_debug.c \
netbsd/resolv/res_init.c \
netbsd/resolv/res_mkquery.c \
netbsd/resolv/res_query.c \
netbsd/resolv/res_send.c \
netbsd/resolv/res_state.c \
netbsd/resolv/res_cache.c \
netbsd/net/nsdispatch.c \
netbsd/net/getaddrinfo.c \
netbsd/net/getnameinfo.c \
netbsd/net/getservbyname.c \
netbsd/net/getservent.c \
netbsd/net/base64.c \
netbsd/net/getservbyport.c \
netbsd/nameser/ns_name.c \
netbsd/nameser/ns_parse.c \
netbsd/nameser/ns_ttl.c \
netbsd/nameser/ns_netint.c \
netbsd/nameser/ns_print.c \
netbsd/nameser/ns_samedomain.c \
regex/regcomp.c \
regex/regerror.c \
regex/regexec.c \
regex/regfree.c \
# The following files are common, but must be compiled
# with different C flags when building a static C library.
#
# The reason for this is the implementation of __get_tls()
# that will differ between the shared and static versions
# of the library.
#
# See comments in private/bionic_tls.h for more details.
#
# NOTE: bionic/pthread.c is added later to this list
# because it needs special handling on ARM, see
# below.
#
libc_static_common_src_files := \
unistd/sysconf.c \
bionic/__errno.c \
# Architecture specific source files go here
# =========================================================
ifeq ($(TARGET_ARCH),arm)
libc_common_src_files += \
bionic/bionic_clone.c \
arch-arm/bionic/__get_pc.S \
arch-arm/bionic/__get_sp.S \
arch-arm/bionic/_exit_with_stack_teardown.S \
arch-arm/bionic/_setjmp.S \
arch-arm/bionic/abort_arm.S \
arch-arm/bionic/atomics_arm.c \
arch-arm/bionic/clone.S \
arch-arm/bionic/eabi.c \
arch-arm/bionic/ffs.S \
arch-arm/bionic/futex_arm.S \
arch-arm/bionic/kill.S \
arch-arm/bionic/libgcc_compat.c \
arch-arm/bionic/tkill.S \
arch-arm/bionic/tgkill.S \
arch-arm/bionic/memcmp.S \
arch-arm/bionic/memcmp16.S \
arch-arm/bionic/memcpy.S \
arch-arm/bionic/memset.S \
arch-arm/bionic/setjmp.S \
arch-arm/bionic/sigsetjmp.S \
arch-arm/bionic/strlen.c.arm \
arch-arm/bionic/strcpy.S \
arch-arm/bionic/strcmp.S \
arch-arm/bionic/syscall.S \
string/memmove.c.arm \
string/bcopy.c \
string/strncmp.c \
unistd/socketcalls.c
# These files need to be arm so that gdbserver
# can set breakpoints in them without messing
# up any thumb code.
libc_common_src_files += \
bionic/pthread-atfork.c.arm \
bionic/pthread-rwlocks.c.arm \
bionic/pthread-timers.c.arm \
bionic/ptrace.c.arm
libc_static_common_src_files += \
bionic/pthread.c.arm \
# these are used by the static and dynamic versions of the libc
# respectively
libc_arch_static_src_files := \
arch-arm/bionic/exidx_static.c
libc_arch_dynamic_src_files := \
arch-arm/bionic/exidx_dynamic.c
else # !arm
ifeq ($(TARGET_ARCH),x86)
libc_common_src_files += \
arch-x86/bionic/__get_sp.S \
arch-x86/bionic/__get_tls.c \
arch-x86/bionic/__set_tls.c \
arch-x86/bionic/clone.S \
arch-x86/bionic/_exit_with_stack_teardown.S \
arch-x86/bionic/futex_x86.S \
arch-x86/bionic/setjmp.S \
arch-x86/bionic/_setjmp.S \
arch-x86/bionic/sigsetjmp.S \
arch-x86/bionic/vfork.S \
arch-x86/bionic/syscall.S \
arch-x86/string/bcopy_wrapper.S \
arch-x86/string/memcpy_wrapper.S \
arch-x86/string/memmove_wrapper.S \
arch-x86/string/bzero_wrapper.S \
arch-x86/string/memcmp_wrapper.S \
arch-x86/string/memset_wrapper.S \
arch-x86/string/strcmp_wrapper.S \
arch-x86/string/strncmp_wrapper.S \
arch-x86/string/strlen_wrapper.S \
string/strcpy.c \
bionic/pthread-atfork.c \
bionic/pthread-rwlocks.c \
bionic/pthread-timers.c \
bionic/ptrace.c
libc_static_common_src_files += \
bionic/pthread.c \
# this is needed for static versions of libc
libc_arch_static_src_files := \
arch-x86/bionic/dl_iterate_phdr_static.c
libc_arch_dynamic_src_files :=
else # !x86
endif # !x86
endif # !arm
# Define some common cflags
# ========================================================
libc_common_cflags := \
-DWITH_ERRLIST \
-DANDROID_CHANGES \
-DUSE_LOCKS \
-DREALLOC_ZERO_BYTES_FREES \
-D_LIBC=1 \
-DSOFTFLOAT \
-DFLOATING_POINT \
-DINET6 \
-I$(LOCAL_PATH)/private \
-DUSE_DL_PREFIX \
-DPOSIX_MISTAKE \
-DLOG_ON_HEAP_ERROR \
# these macro definitions are required to implement the
# 'timezone' and 'daylight' global variables, as well as
# properly update the 'tm_gmtoff' field in 'struct tm'.
#
libc_common_cflags += \
-DTM_GMTOFF=tm_gmtoff \
-DUSG_COMPAT=1
ifeq ($(strip $(DEBUG_BIONIC_LIBC)),true)
libc_common_cflags += -DDEBUG
endif
# To customize dlmalloc's alignment, set BOARD_MALLOC_ALIGNMENT in
# the appropriate BoardConfig.mk file.
#
ifneq ($(BOARD_MALLOC_ALIGNMENT),)
libc_common_cflags += -DMALLOC_ALIGNMENT=$(BOARD_MALLOC_ALIGNMENT)
endif
ifeq ($(TARGET_ARCH),arm)
libc_common_cflags += -fstrict-aliasing
libc_crt_target_cflags := -mthumb-interwork
#
# Define HAVE_ARM_TLS_REGISTER macro to indicate to the C library
# that it should access the hardware TLS register directly in
# private/bionic_tls.h
#
# The value must match your kernel configuration
#
ifeq ($(ARCH_ARM_HAVE_TLS_REGISTER),true)
libc_common_cflags += -DHAVE_ARM_TLS_REGISTER
endif
#
# Define HAVE_32_BYTE_CACHE_LINES to indicate to C
# library it should use to 32-byte version of memcpy, and not
# the 64-byte version.
#
ifeq ($(ARCH_ARM_HAVE_32_BYTE_CACHE_LINES),true)
libc_common_cflags += -DHAVE_32_BYTE_CACHE_LINE
endif
ifeq ($(ARCH_ARM_USE_NON_NEON_MEMCPY),true)
libc_common_cflags += -DARCH_ARM_USE_NON_NEON_MEMCPY
endif
else # !arm
ifeq ($(TARGET_ARCH),x86)
libc_crt_target_cflags :=
ifeq ($(ARCH_X86_HAVE_SSE2),true)
libc_crt_target_cflags += -DUSE_SSE2=1
endif
ifeq ($(ARCH_X86_HAVE_SSSE3),true)
libc_crt_target_cflags += -DUSE_SSSE3=1
endif
endif # x86
endif # !arm
# Define ANDROID_SMP appropriately.
ifeq ($(TARGET_CPU_SMP),true)
libc_common_cflags += -DANDROID_SMP=1
else
libc_common_cflags += -DANDROID_SMP=0
endif
# Needed to access private/__dso_handle.h from
# crtbegin_xxx.c and crtend_xxx.c
#
libc_crt_target_cflags += -I$(LOCAL_PATH)/private
ifeq ($(TARGET_ARCH),arm)
libc_crt_target_cflags += -DCRT_LEGACY_WORKAROUND
endif
# Define some common includes
# ========================================================
libc_common_c_includes := \
$(LOCAL_PATH)/stdlib \
$(LOCAL_PATH)/string \
$(LOCAL_PATH)/stdio
# Needed to access private/__dso_handle.h from
# crtbegin_xxx.S and crtend_xxx.S
#
libc_crt_target_cflags += -I$(LOCAL_PATH)/private -I$(LOCAL_PATH)/arch-$(TARGET_ARCH)/include
# Define the libc run-time (crt) support object files that must be built,
# which are needed to build all other objects (shared/static libs and
# executables)
# ==========================================================================
ifneq ($(filter arm x86,$(TARGET_ARCH)),)
# ARM and x86 need crtbegin_so/crtend_so.
#
# For x86, the .init section must point to a function that calls all
# entries in the .ctors section. (on ARM this is done through the
# .init_array section instead).
#
# For both platforms, the .fini_array section must point to a function
# that will call __cxa_finalize(&__dso_handle) in order to ensure that
# static C++ destructors are properly called on dlclose().
#
libc_crt_target_so_cflags := $(libc_crt_target_cflags)
libc_crt_target_crtstart_file := $(LOCAL_PATH)/arch-$(TARGET_ARCH)/bionic/crtbegin.c
libc_crt_target_crtstart_so_file := $(LOCAL_PATH)/arch-$(TARGET_ARCH)/bionic/crtbegin_so.c
ifeq ($(TARGET_ARCH),x86)
# This flag must be added for x86 targets, but not for ARM
libc_crt_target_so_cflags += -fPIC
libc_crt_target_crtstart_file := $(LOCAL_PATH)/arch-$(TARGET_ARCH)/bionic/crtbegin.S
libc_crt_target_crtstart_so_file := $(LOCAL_PATH)/arch-$(TARGET_ARCH)/bionic/crtbegin_so.S
endif
GEN := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_so.o
$(GEN): $(libc_crt_target_crtstart_so_file)
@mkdir -p $(dir $@)
$(TARGET_CC) $(libc_crt_target_so_cflags) -o $@ -c $<
ALL_GENERATED_SOURCES += $(GEN)
GEN := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_so.o
$(GEN): $(LOCAL_PATH)/arch-$(TARGET_ARCH)/bionic/crtend_so.S
@mkdir -p $(dir $@)
$(TARGET_CC) $(libc_crt_target_so_cflags) -o $@ -c $<
ALL_GENERATED_SOURCES += $(GEN)
endif # TARGET_ARCH == x86 || TARGET_ARCH == arm
GEN := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_static.o
$(GEN): $(libc_crt_target_crtstart_file)
@mkdir -p $(dir $@)
$(TARGET_CC) $(libc_crt_target_cflags) -o $@ -c $<
ALL_GENERATED_SOURCES += $(GEN)
GEN := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_dynamic.o
$(GEN): $(libc_crt_target_crtstart_file)
@mkdir -p $(dir $@)
$(TARGET_CC) $(libc_crt_target_cflags) -o $@ -c $<
ALL_GENERATED_SOURCES += $(GEN)
# We rename crtend.o to crtend_android.o to avoid a
# name clash between gcc and bionic.
GEN := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_android.o
$(GEN): $(LOCAL_PATH)/arch-$(TARGET_ARCH)/bionic/crtend.S
@mkdir -p $(dir $@)
$(TARGET_CC) $(libc_crt_target_cflags) -o $@ -c $<
ALL_GENERATED_SOURCES += $(GEN)
# To enable malloc leak check for statically linked programs, add
# "WITH_MALLOC_CHECK_LIBC_A := true" to buildspec.mk
WITH_MALLOC_CHECK_LIBC_A := $(strip $(WITH_MALLOC_CHECK_LIBC_A))
# ========================================================
# libc_common.a
# ========================================================
include $(CLEAR_VARS)
LOCAL_SRC_FILES := $(libc_common_src_files)
LOCAL_CFLAGS := $(libc_common_cflags)
ifeq ($(TARGET_ARCH),arm)
LOCAL_CFLAGS += -DCRT_LEGACY_WORKAROUND
endif
LOCAL_C_INCLUDES := $(libc_common_c_includes)
LOCAL_MODULE := libc_common
LOCAL_SYSTEM_SHARED_LIBRARIES :=
include $(BUILD_STATIC_LIBRARY)
# ========================================================
# libc_nomalloc.a
# ========================================================
#
# This is a version of the static C library that does not
# include malloc. It's useful in situations when calling
# the user wants to provide their own malloc implementation,
# or wants to explicitly disallow the use of the use of malloc,
# like the dynamic loader.
include $(CLEAR_VARS)
LOCAL_SRC_FILES := \
$(libc_arch_static_src_files) \
$(libc_static_common_src_files) \
bionic/libc_init_static.c
LOCAL_C_INCLUDES := $(libc_common_c_includes)
LOCAL_CFLAGS := $(libc_common_cflags) \
-DLIBC_STATIC
LOCAL_MODULE := libc_nomalloc
LOCAL_WHOLE_STATIC_LIBRARIES := libc_common
LOCAL_SYSTEM_SHARED_LIBRARIES :=
include $(BUILD_STATIC_LIBRARY)
# ========================================================
# libc.a
# ========================================================
include $(CLEAR_VARS)
LOCAL_SRC_FILES := \
$(libc_arch_static_src_files) \
$(libc_static_common_src_files) \
bionic/dlmalloc.c \
bionic/malloc_debug_common.c \
bionic/libc_init_static.c
LOCAL_CFLAGS := $(libc_common_cflags) \
-DLIBC_STATIC
LOCAL_C_INCLUDES := $(libc_common_c_includes)
LOCAL_MODULE := libc
LOCAL_WHOLE_STATIC_LIBRARIES := libc_common
LOCAL_SYSTEM_SHARED_LIBRARIES :=
include $(BUILD_STATIC_LIBRARY)
# ========================================================
# libc.so
# ========================================================
include $(CLEAR_VARS)
# pthread deadlock prediction:
# set -DPTHREAD_DEBUG -DPTHREAD_DEBUG_ENABLED=1 to enable support for
# pthread deadlock prediction.
# Since this code is experimental it is disabled by default.
# see libc/bionic/pthread_debug.c for details
LOCAL_CFLAGS := $(libc_common_cflags) -DPTHREAD_DEBUG -DPTHREAD_DEBUG_ENABLED=0
LOCAL_C_INCLUDES := $(libc_common_c_includes)
LOCAL_SRC_FILES := \
$(libc_arch_dynamic_src_files) \
$(libc_static_common_src_files) \
bionic/dlmalloc.c \
bionic/malloc_debug_common.c \
bionic/pthread_debug.c \
bionic/libc_init_dynamic.c
LOCAL_MODULE:= libc
# WARNING: The only library libc.so should depend on is libdl.so! If you add other libraries,
# make sure to add -Wl,--exclude-libs=libgcc.a to the LOCAL_LDFLAGS for those libraries. This
# ensures that symbols that are pulled into those new libraries from libgcc.a are not declared
# external; if that were the case, then libc would not pull those symbols from libgcc.a as it
# should, instead relying on the external symbols from the dependent libraries. That would
# create an "cloaked" dependency on libgcc.a in libc though the libraries, which is not what
# you wanted!
LOCAL_SHARED_LIBRARIES := libdl
LOCAL_WHOLE_STATIC_LIBRARIES := libc_common
LOCAL_SYSTEM_SHARED_LIBRARIES :=
include $(BUILD_SHARED_LIBRARY)
# For all builds, except for the -user build we will enable memory
# allocation checking (including memory leaks, buffer overwrites, etc.)
# Note that all these checks are also controlled by env. settings
# that can enable, or disable specific checks. Note also that some of
# the checks are available only in emulator and are implemeted in
# libc_malloc_qemu_instrumented.so.
ifneq ($(TARGET_BUILD_VARIANT),user)
# ========================================================
# libc_malloc_debug_leak.so
# ========================================================
include $(CLEAR_VARS)
LOCAL_CFLAGS := \
$(libc_common_cflags) \
-DMALLOC_LEAK_CHECK
LOCAL_C_INCLUDES := $(libc_common_c_includes)
LOCAL_SRC_FILES := \
bionic/malloc_debug_leak.c
LOCAL_MODULE:= libc_malloc_debug_leak
LOCAL_SHARED_LIBRARIES := libc
LOCAL_WHOLE_STATIC_LIBRARIES := libc_common
LOCAL_SYSTEM_SHARED_LIBRARIES :=
LOCAL_ALLOW_UNDEFINED_SYMBOLS := true
# Don't install on release build
LOCAL_MODULE_TAGS := eng debug
include $(BUILD_SHARED_LIBRARY)
# ========================================================
# libc_malloc_debug_qemu.so
# ========================================================
include $(CLEAR_VARS)
LOCAL_CFLAGS := \
$(libc_common_cflags) \
-DMALLOC_QEMU_INSTRUMENT
LOCAL_C_INCLUDES := $(libc_common_c_includes)
LOCAL_SRC_FILES := \
bionic/malloc_debug_qemu.c
LOCAL_MODULE:= libc_malloc_debug_qemu
LOCAL_SHARED_LIBRARIES := libc libdl
LOCAL_WHOLE_STATIC_LIBRARIES := libc_common
LOCAL_SYSTEM_SHARED_LIBRARIES :=
# Don't install on release build
LOCAL_MODULE_TAGS := eng debug
include $(BUILD_SHARED_LIBRARY)
endif #!user
# ========================================================
include $(call all-makefiles-under,$(LOCAL_PATH))
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