MALLOC_IMPL ?= dlmalloc
# yes or no
BUILD_LIBC_TOP_HALF ?= yes
-# The directory where we're store intermediate artifacts.
-OBJDIR ?= $(CURDIR)/build
+# The directory where we will store intermediate artifacts.
+OBJDIR ?= $(CURDIR)/build/$(TARGET_TRIPLE)
# When the length is no larger than this threshold, we consider the
# overhead of bulk memory opcodes to outweigh the performance benefit,
# Variables from this point on are not meant to be overridable via the
# make command-line.
-# Set the target variables. Multiarch triples notably omit the vendor field,
-# which happens to be what we do for the main target triple too.
+# Set the default WASI target triple.
TARGET_TRIPLE = wasm32-wasi
-MULTIARCH_TRIPLE = wasm32-wasi
+
+# Threaded version necessitates a different traget, as objects from different
+# targets can't be mixed together while linking.
+ifeq ($(THREAD_MODEL), posix)
+TARGET_TRIPLE = wasm32-wasi-threads
+endif
# These variables describe the locations of various files and directories in
# the source tree.
DLMALLOC_SRC_DIR = $(DLMALLOC_DIR)/src
DLMALLOC_SOURCES = $(DLMALLOC_SRC_DIR)/dlmalloc.c
DLMALLOC_INC = $(DLMALLOC_DIR)/include
+EMMALLOC_DIR = $(CURDIR)/emmalloc
+EMMALLOC_SOURCES = $(EMMALLOC_DIR)/emmalloc.c
LIBC_BOTTOM_HALF_DIR = $(CURDIR)/libc-bottom-half
LIBC_BOTTOM_HALF_CLOUDLIBC_SRC = $(LIBC_BOTTOM_HALF_DIR)/cloudlibc/src
LIBC_BOTTOM_HALF_CLOUDLIBC_SRC_INC = $(LIBC_BOTTOM_HALF_CLOUDLIBC_SRC)/include
fcntl/creat.c \
dirent/alphasort.c \
dirent/versionsort.c \
+ env/__stack_chk_fail.c \
env/clearenv.c \
env/getenv.c \
env/putenv.c \
ifeq ($(THREAD_MODEL), posix)
LIBC_TOP_HALF_MUSL_SOURCES += \
$(addprefix $(LIBC_TOP_HALF_MUSL_SRC_DIR)/, \
+ env/__init_tls.c \
+ stdio/__lockfile.c \
+ stdio/flockfile.c \
+ stdio/ftrylockfile.c \
+ stdio/funlockfile.c \
thread/__lock.c \
thread/__wait.c \
thread/__timedwait.c \
+ thread/default_attr.c \
+ thread/pthread_attr_destroy.c \
+ thread/pthread_attr_get.c \
+ thread/pthread_attr_init.c \
+ thread/pthread_attr_setstack.c \
+ thread/pthread_attr_setdetachstate.c \
+ thread/pthread_attr_setstacksize.c \
+ thread/pthread_barrier_destroy.c \
+ thread/pthread_barrier_init.c \
+ thread/pthread_barrier_wait.c \
thread/pthread_cleanup_push.c \
thread/pthread_cond_broadcast.c \
thread/pthread_cond_destroy.c \
thread/pthread_condattr_setclock.c \
thread/pthread_condattr_setpshared.c \
thread/pthread_create.c \
+ thread/pthread_detach.c \
+ thread/pthread_equal.c \
+ thread/pthread_getspecific.c \
thread/pthread_join.c \
+ thread/pthread_key_create.c \
thread/pthread_mutex_consistent.c \
thread/pthread_mutex_destroy.c \
thread/pthread_mutex_init.c \
thread/pthread_mutexattr_setpshared.c \
thread/pthread_mutexattr_setrobust.c \
thread/pthread_mutexattr_settype.c \
+ thread/pthread_once.c \
thread/pthread_rwlock_destroy.c \
thread/pthread_rwlock_init.c \
thread/pthread_rwlock_rdlock.c \
thread/pthread_rwlockattr_init.c \
thread/pthread_rwlockattr_setpshared.c \
thread/pthread_setcancelstate.c \
+ thread/pthread_setspecific.c \
+ thread/pthread_self.c \
thread/pthread_testcancel.c \
thread/sem_destroy.c \
thread/sem_getvalue.c \
thread/sem_timedwait.c \
thread/sem_trywait.c \
thread/sem_wait.c \
+ thread/wasm32/wasi_thread_start.s \
)
endif
LIBC_TOP_HALF_SOURCES = $(LIBC_TOP_HALF_DIR)/sources
LIBC_TOP_HALF_ALL_SOURCES = \
$(LIBC_TOP_HALF_MUSL_SOURCES) \
- $(sort $(shell find $(LIBC_TOP_HALF_SOURCES) -name \*.c))
+ $(sort $(shell find $(LIBC_TOP_HALF_SOURCES) -name \*.[cs]))
# Add any extra flags
CFLAGS = $(EXTRA_CFLAGS)
# Set the target.
CFLAGS += --target=$(TARGET_TRIPLE)
+ASMFLAGS += --target=$(TARGET_TRIPLE)
# WebAssembly floating-point match doesn't trap.
# TODO: Add -fno-signaling-nans when the compiler supports it.
CFLAGS += -fno-trapping-math
# These variables describe the locations of various files and directories in
# the build tree.
objs = $(patsubst $(CURDIR)/%.c,$(OBJDIR)/%.o,$(1))
+asmobjs = $(patsubst $(CURDIR)/%.s,$(OBJDIR)/%.o,$(1))
DLMALLOC_OBJS = $(call objs,$(DLMALLOC_SOURCES))
+EMMALLOC_OBJS = $(call objs,$(EMMALLOC_SOURCES))
LIBC_BOTTOM_HALF_ALL_OBJS = $(call objs,$(LIBC_BOTTOM_HALF_ALL_SOURCES))
-LIBC_TOP_HALF_ALL_OBJS = $(call objs,$(LIBC_TOP_HALF_ALL_SOURCES))
+LIBC_TOP_HALF_ALL_OBJS = $(call asmobjs,$(call objs,$(LIBC_TOP_HALF_ALL_SOURCES)))
ifeq ($(MALLOC_IMPL),dlmalloc)
LIBC_OBJS += $(DLMALLOC_OBJS)
+else ifeq ($(MALLOC_IMPL),emmalloc)
+LIBC_OBJS += $(EMMALLOC_OBJS)
else ifeq ($(MALLOC_IMPL),none)
# No object files to add.
else
# These variables describe the locations of various files and
# directories in the generated sysroot tree.
-SYSROOT_LIB := $(SYSROOT)/lib/$(MULTIARCH_TRIPLE)
+SYSROOT_LIB := $(SYSROOT)/lib/$(TARGET_TRIPLE)
SYSROOT_INC = $(SYSROOT)/include
-SYSROOT_SHARE = $(SYSROOT)/share/$(MULTIARCH_TRIPLE)
+SYSROOT_SHARE = $(SYSROOT)/share/$(TARGET_TRIPLE)
# Files from musl's include directory that we don't want to install in the
# sysroot's include directory.
@mkdir -p "$(@D)"
$(CC) $(CFLAGS) -MD -MP -o $@ -c $<
+$(OBJDIR)/%.o: $(CURDIR)/%.s include_dirs
+ @mkdir -p "$(@D)"
+ $(CC) $(ASMFLAGS) -o $@ -c $<
+
-include $(shell find $(OBJDIR) -name \*.d)
$(DLMALLOC_OBJS): CFLAGS += \
@# its builtin include path first, which produces compiler-specific
@# output.
@#
- @# TODO: Undefine __FLOAT128__ for now since it's not in clang 8.0.
- @# TODO: Filter out __FLT16_* for now, as not all versions of clang have these.
@# TODO: Filter out __NO_MATH_ERRNO_ and a few __*WIDTH__ that are new to clang 14.
+ @# TODO: Filter out __GCC_HAVE_SYNC_COMPARE_AND_SWAP_* that are new to clang 16.
@# TODO: clang defined __FLT_EVAL_METHOD__ until clang 15, so we force-undefine it
@# for older versions.
+ @# TODO: Undefine __wasm_mutable_globals__ and __wasm_sign_ext__, that are new to
+ @# clang 16 for -mcpu=generic.
+ @# TODO: As of clang 16, __GNUC_VA_LIST is #defined without a value.
$(CC) $(CFLAGS) "$(SYSROOT_SHARE)/include-all.c" \
-isystem $(SYSROOT_INC) \
-std=gnu17 \
-U__clang_version__ \
-U__clang_literal_encoding__ \
-U__clang_wide_literal_encoding__ \
+ -U__wasm_mutable_globals__ \
+ -U__wasm_sign_ext__ \
-U__GNUC__ \
-U__GNUC_MINOR__ \
-U__GNUC_PATCHLEVEL__ \
-U__VERSION__ \
- -U__FLOAT128__ \
-U__NO_MATH_ERRNO__ \
-U__BITINT_MAXWIDTH__ \
-U__FLT_EVAL_METHOD__ -Wno-builtin-macro-redefined \
| sed -e 's/__[[:upper:][:digit:]]*_ATOMIC_\([[:upper:][:digit:]_]*\)_LOCK_FREE/__compiler_ATOMIC_\1_LOCK_FREE/' \
- | grep -v '^#define __FLT16_' \
+ | sed -e 's/__GNUC_VA_LIST $$/__GNUC_VA_LIST 1/' \
| grep -v '^#define __\(BOOL\|INT_\(LEAST\|FAST\)\(8\|16\|32\|64\)\|INT\|LONG\|LLONG\|SHRT\)_WIDTH__' \
+ | grep -v '^#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_\(1\|2\|4\|8\)' \
> "$(SYSROOT_SHARE)/predefined-macros.txt"
# Check that the computed metadata matches the expected metadata.
# This ignores whitespace because on Windows the output has CRLF line endings.
- diff -wur "$(CURDIR)/expected/$(MULTIARCH_TRIPLE)/$(THREAD_MODEL)" "$(SYSROOT_SHARE)"
+ diff -wur "$(CURDIR)/expected/$(TARGET_TRIPLE)" "$(SYSROOT_SHARE)"
install: finish
mkdir -p "$(INSTALL_DIR)"
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