-# These variables are specifically meant to be overridable via
-# the make command-line.
-WASM_CC ?= clang
-WASM_NM ?= $(patsubst %clang,%llvm-nm,$(WASM_CC))
-WASM_AR ?= $(patsubst %clang,%llvm-ar,$(WASM_CC))
-WASM_CFLAGS ?= -O2
+# These variables are specifically meant to be overridable via the make
+# command-line.
+# ?= doesn't work for CC and AR because make has a default value for them.
+ifeq ($(origin CC), default)
+CC := clang
+endif
+NM ?= $(patsubst %clang,%llvm-nm,$(filter-out ccache sccache,$(CC)))
+ifeq ($(origin AR), default)
+AR = $(patsubst %clang,%llvm-ar,$(filter-out ccache sccache,$(CC)))
+endif
+EXTRA_CFLAGS ?= -O2 -DNDEBUG
# The directory where we build the sysroot.
SYSROOT ?= $(CURDIR)/sysroot
# A directory to install to for "make install".
INSTALL_DIR ?= /usr/local
-# single or posix
-THREAD_MODEL = single
+# single or posix; note that pthread support is still a work-in-progress.
+THREAD_MODEL ?= single
+# dlmalloc or none
+MALLOC_IMPL ?= dlmalloc
# yes or no
-BUILD_DLMALLOC = yes
-BUILD_LIBC_BOTTOM_HALF = yes
-BUILD_LIBC_TOP_HALF = yes
-# The directory where we're store intermediate artifacts.
-OBJDIR = $(CURDIR)/build
+BUILD_LIBC_TOP_HALF ?= yes
+# The directory where we will store intermediate artifacts.
+OBJDIR ?= $(CURDIR)/build/$(TARGET_TRIPLE)
-# Check dependencies.
-ifeq ($(BUILD_LIBC_TOP_HALF),yes)
-ifneq ($(BUILD_LIBC_BOTTOM_HALF),yes)
-$(error BUILD_LIBC_TOP_HALF=yes depends on BUILD_LIBC_BOTTOM_HALF=yes)
-endif
-endif
-ifeq ($(BUILD_LIBC_BOTTOM_HALF),yes)
-ifneq ($(BUILD_DLMALLOC),yes)
-$(error BUILD_LIBC_BOTTOM_HALF=yes depends on BUILD_DLMALLOC=yes)
-endif
+# When the length is no larger than this threshold, we consider the
+# overhead of bulk memory opcodes to outweigh the performance benefit,
+# and fall back to the original musl implementation. See
+# https://github.com/WebAssembly/wasi-libc/pull/263 for relevant
+# discussion
+BULK_MEMORY_THRESHOLD ?= 32
+
+# Variables from this point on are not meant to be overridable via the
+# make command-line.
+
+# Set the default WASI target triple.
+TARGET_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.
-BASICS_DIR = $(CURDIR)/basics
-BASICS_INC = $(BASICS_DIR)/include
-BASICS_CRT_SOURCES = $(wildcard $(BASICS_DIR)/crt/*.c)
-BASICS_SOURCES = $(wildcard $(BASICS_DIR)/sources/*.c)
+# These variables describe the locations of various files and directories in
+# the source tree.
DLMALLOC_DIR = $(CURDIR)/dlmalloc
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
LIBC_BOTTOM_HALF_HEADERS_PUBLIC = $(LIBC_BOTTOM_HALF_DIR)/headers/public
LIBC_BOTTOM_HALF_HEADERS_PRIVATE = $(LIBC_BOTTOM_HALF_DIR)/headers/private
-LIBC_BOTTOM_HALF_LIBPREOPEN_DIR = $(LIBC_BOTTOM_HALF_DIR)/libpreopen
-LIBC_BOTTOM_HALF_LIBPREOPEN_LIB = $(LIBC_BOTTOM_HALF_LIBPREOPEN_DIR)/lib
-LIBC_BOTTOM_HALF_LIBPREOPEN_INC = $(LIBC_BOTTOM_HALF_LIBPREOPEN_DIR)/include
LIBC_BOTTOM_HALF_SOURCES = $(LIBC_BOTTOM_HALF_DIR)/sources
LIBC_BOTTOM_HALF_ALL_SOURCES = \
+ $(sort \
$(shell find $(LIBC_BOTTOM_HALF_CLOUDLIBC_SRC) -name \*.c) \
- $(LIBC_BOTTOM_HALF_LIBPREOPEN_LIB)/po_libc_wrappers.c \
- $(shell find $(LIBC_BOTTOM_HALF_SOURCES) -name \*.c)
+ $(shell find $(LIBC_BOTTOM_HALF_SOURCES) -name \*.c))
+
+# FIXME(https://reviews.llvm.org/D85567) - due to a bug in LLD the weak
+# references to a function defined in `chdir.c` only work if `chdir.c` is at the
+# end of the archive, but once that LLD review lands and propagates into LLVM
+# then we don't have to do this.
+LIBC_BOTTOM_HALF_ALL_SOURCES := $(filter-out $(LIBC_BOTTOM_HALF_SOURCES)/chdir.c,$(LIBC_BOTTOM_HALF_ALL_SOURCES))
+LIBC_BOTTOM_HALF_ALL_SOURCES := $(LIBC_BOTTOM_HALF_ALL_SOURCES) $(LIBC_BOTTOM_HALF_SOURCES)/chdir.c
+
LIBWASI_EMULATED_MMAN_SOURCES = \
- $(shell find $(LIBC_BOTTOM_HALF_DIR)/mman -name \*.c)
+ $(sort $(shell find $(LIBC_BOTTOM_HALF_DIR)/mman -name \*.c))
+LIBWASI_EMULATED_PROCESS_CLOCKS_SOURCES = \
+ $(sort $(shell find $(LIBC_BOTTOM_HALF_DIR)/clocks -name \*.c))
+LIBWASI_EMULATED_GETPID_SOURCES = \
+ $(sort $(shell find $(LIBC_BOTTOM_HALF_DIR)/getpid -name \*.c))
+LIBWASI_EMULATED_SIGNAL_SOURCES = \
+ $(sort $(shell find $(LIBC_BOTTOM_HALF_DIR)/signal -name \*.c))
+LIBWASI_EMULATED_SIGNAL_MUSL_SOURCES = \
+ $(LIBC_TOP_HALF_MUSL_SRC_DIR)/signal/psignal.c \
+ $(LIBC_TOP_HALF_MUSL_SRC_DIR)/string/strsignal.c
LIBC_BOTTOM_HALF_CRT_SOURCES = $(wildcard $(LIBC_BOTTOM_HALF_DIR)/crt/*.c)
LIBC_TOP_HALF_DIR = $(CURDIR)/libc-top-half
LIBC_TOP_HALF_MUSL_DIR = $(LIBC_TOP_HALF_DIR)/musl
LIBC_TOP_HALF_MUSL_SRC_DIR = $(LIBC_TOP_HALF_MUSL_DIR)/src
LIBC_TOP_HALF_MUSL_INC = $(LIBC_TOP_HALF_MUSL_DIR)/include
LIBC_TOP_HALF_MUSL_SOURCES = \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/misc/a64l.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/misc/basename.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/misc/dirname.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/misc/ffs.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/misc/ffsl.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/misc/ffsll.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/misc/fmtmsg.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/misc/getdomainname.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/misc/gethostid.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/misc/getopt.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/misc/getopt_long.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/misc/getsubopt.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/misc/uname.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/misc/nftw.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/errno/strerror.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/network/htonl.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/network/htons.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/network/ntohl.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/network/ntohs.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/network/inet_ntop.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/network/inet_pton.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/network/inet_aton.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/network/in6addr_any.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/network/in6addr_loopback.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/fenv/fenv.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/fenv/fesetround.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/fenv/feupdateenv.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/fenv/fesetexceptflag.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/fenv/fegetexceptflag.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/fenv/feholdexcept.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/exit/exit.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/exit/atexit.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/exit/assert.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/exit/quick_exit.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/exit/at_quick_exit.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/time/strftime.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/time/asctime.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/time/asctime_r.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/time/ctime.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/time/ctime_r.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/time/wcsftime.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/time/strptime.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/time/difftime.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/time/timegm.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/time/ftime.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/time/gmtime.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/time/gmtime_r.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/time/timespec_get.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/time/getdate.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/time/localtime.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/time/localtime_r.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/time/mktime.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/time/__tm_to_secs.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/time/__month_to_secs.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/time/__secs_to_tm.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/time/__year_to_secs.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/time/__tz.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/fcntl/creat.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/dirent/alphasort.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/dirent/versionsort.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/env/clearenv.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/env/getenv.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/env/putenv.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/env/setenv.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/env/unsetenv.c \
- $(LIBC_TOP_HALF_MUSL_SRC_DIR)/unistd/posix_close.c \
+ $(addprefix $(LIBC_TOP_HALF_MUSL_SRC_DIR)/, \
+ misc/a64l.c \
+ misc/basename.c \
+ misc/dirname.c \
+ misc/ffs.c \
+ misc/ffsl.c \
+ misc/ffsll.c \
+ misc/fmtmsg.c \
+ misc/getdomainname.c \
+ misc/gethostid.c \
+ misc/getopt.c \
+ misc/getopt_long.c \
+ misc/getsubopt.c \
+ misc/uname.c \
+ misc/nftw.c \
+ errno/strerror.c \
+ network/htonl.c \
+ network/htons.c \
+ network/ntohl.c \
+ network/ntohs.c \
+ network/inet_ntop.c \
+ network/inet_pton.c \
+ network/inet_aton.c \
+ network/in6addr_any.c \
+ network/in6addr_loopback.c \
+ fenv/fenv.c \
+ fenv/fesetround.c \
+ fenv/feupdateenv.c \
+ fenv/fesetexceptflag.c \
+ fenv/fegetexceptflag.c \
+ fenv/feholdexcept.c \
+ exit/exit.c \
+ exit/atexit.c \
+ exit/assert.c \
+ exit/quick_exit.c \
+ exit/at_quick_exit.c \
+ time/strftime.c \
+ time/asctime.c \
+ time/asctime_r.c \
+ time/ctime.c \
+ time/ctime_r.c \
+ time/wcsftime.c \
+ time/strptime.c \
+ time/difftime.c \
+ time/timegm.c \
+ time/ftime.c \
+ time/gmtime.c \
+ time/gmtime_r.c \
+ time/timespec_get.c \
+ time/getdate.c \
+ time/localtime.c \
+ time/localtime_r.c \
+ time/mktime.c \
+ time/__tm_to_secs.c \
+ time/__month_to_secs.c \
+ time/__secs_to_tm.c \
+ time/__year_to_secs.c \
+ time/__tz.c \
+ fcntl/creat.c \
+ dirent/alphasort.c \
+ dirent/versionsort.c \
+ env/__stack_chk_fail.c \
+ env/clearenv.c \
+ env/getenv.c \
+ env/putenv.c \
+ env/setenv.c \
+ env/unsetenv.c \
+ unistd/posix_close.c \
+ stat/futimesat.c \
+ legacy/getpagesize.c \
+ thread/thrd_sleep.c \
+ ) \
$(filter-out %/procfdname.c %/syscall.c %/syscall_ret.c %/vdso.c %/version.c, \
$(wildcard $(LIBC_TOP_HALF_MUSL_SRC_DIR)/internal/*.c)) \
$(filter-out %/flockfile.c %/funlockfile.c %/__lockfile.c %/ftrylockfile.c \
%/nearbyintf.c %/nearbyint.c \
%/sqrtf.c %/sqrt.c \
%/fabsf.c %/fabs.c \
- %/copysignf.c %/copysign.c, \
+ %/copysignf.c %/copysign.c \
+ %/fminf.c %/fmaxf.c \
+ %/fmin.c %/fmax.c, \
$(wildcard $(LIBC_TOP_HALF_MUSL_SRC_DIR)/math/*.c)) \
- $(filter-out %/crealf.c %/creal.c \
- %/cimagf.c %/cimag.c, \
+ $(filter-out %/crealf.c %/creal.c %creall.c \
+ %/cimagf.c %/cimag.c %cimagl.c, \
$(wildcard $(LIBC_TOP_HALF_MUSL_SRC_DIR)/complex/*.c)) \
$(wildcard $(LIBC_TOP_HALF_MUSL_SRC_DIR)/crypt/*.c)
+
+ifeq ($(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_cond_init.c \
+ thread/pthread_cond_signal.c \
+ thread/pthread_cond_timedwait.c \
+ thread/pthread_cond_wait.c \
+ thread/pthread_condattr_destroy.c \
+ thread/pthread_condattr_init.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_mutex_getprioceiling.c \
+ thread/pthread_mutex_lock.c \
+ thread/pthread_mutex_timedlock.c \
+ thread/pthread_mutex_trylock.c \
+ thread/pthread_mutex_unlock.c \
+ thread/pthread_mutexattr_destroy.c \
+ thread/pthread_mutexattr_init.c \
+ thread/pthread_mutexattr_setprotocol.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_rwlock_timedrdlock.c \
+ thread/pthread_rwlock_timedwrlock.c \
+ thread/pthread_rwlock_tryrdlock.c \
+ thread/pthread_rwlock_trywrlock.c \
+ thread/pthread_rwlock_unlock.c \
+ thread/pthread_rwlock_wrlock.c \
+ thread/pthread_rwlockattr_destroy.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_init.c \
+ thread/sem_post.c \
+ thread/sem_timedwait.c \
+ thread/sem_trywait.c \
+ thread/sem_wait.c \
+ thread/wasm32/wasi_thread_start.s \
+ )
+endif
+
MUSL_PRINTSCAN_SOURCES = \
$(LIBC_TOP_HALF_MUSL_SRC_DIR)/internal/floatscan.c \
$(LIBC_TOP_HALF_MUSL_SRC_DIR)/stdio/vfprintf.c \
$(LIBC_TOP_HALF_MUSL_SRC_DIR)/stdio/vfscanf.c \
$(LIBC_TOP_HALF_MUSL_SRC_DIR)/stdlib/strtod.c \
$(LIBC_TOP_HALF_MUSL_SRC_DIR)/stdlib/wcstod.c
+BULK_MEMORY_SOURCES = \
+ $(LIBC_TOP_HALF_MUSL_SRC_DIR)/string/memcpy.c \
+ $(LIBC_TOP_HALF_MUSL_SRC_DIR)/string/memmove.c \
+ $(LIBC_TOP_HALF_MUSL_SRC_DIR)/string/memset.c
LIBC_TOP_HALF_HEADERS_PRIVATE = $(LIBC_TOP_HALF_DIR)/headers/private
LIBC_TOP_HALF_SOURCES = $(LIBC_TOP_HALF_DIR)/sources
LIBC_TOP_HALF_ALL_SOURCES = \
$(LIBC_TOP_HALF_MUSL_SOURCES) \
- $(shell find $(LIBC_TOP_HALF_SOURCES) -name \*.c)
-
-# Set the target variables. Multiarch triples notably omit the vendor
-# field, which happens to be what we do for the main target triple too.
-TARGET_TRIPLE = wasm32-wasi
-MULTIARCH_TRIPLE = wasm32-wasi
-
-# These variables describe the locations of various files and
-# directories in the generated sysroot tree.
-SYSROOT_LIB = $(SYSROOT)/lib/$(MULTIARCH_TRIPLE)
-SYSROOT_INC = $(SYSROOT)/include
-SYSROOT_SHARE = $(SYSROOT)/share/$(MULTIARCH_TRIPLE)
+ $(sort $(shell find $(LIBC_TOP_HALF_SOURCES) -name \*.[cs]))
+# Add any extra flags
+CFLAGS = $(EXTRA_CFLAGS)
# Set the target.
-override WASM_CFLAGS += --target=$(TARGET_TRIPLE)
+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.
-override WASM_CFLAGS += -fno-trapping-math
+CFLAGS += -fno-trapping-math
+# Add all warnings, but disable a few which occur in third-party code.
+CFLAGS += -Wall -Wextra -Werror \
+ -Wno-null-pointer-arithmetic \
+ -Wno-unused-parameter \
+ -Wno-sign-compare \
+ -Wno-unused-variable \
+ -Wno-unused-function \
+ -Wno-ignored-attributes \
+ -Wno-missing-braces \
+ -Wno-ignored-pragmas \
+ -Wno-unused-but-set-variable \
+ -Wno-unknown-warning-option
# Configure support for threads.
ifeq ($(THREAD_MODEL), single)
-override WASM_CFLAGS += -mthread-model single
+CFLAGS += -mthread-model single
endif
ifeq ($(THREAD_MODEL), posix)
-override WASM_CFLAGS += -mthread-model posix -pthread
-endif
+# Specify the tls-model until LLVM 15 is released (which should contain
+# https://reviews.llvm.org/D130053).
+CFLAGS += -mthread-model posix -pthread -ftls-model=local-exec
-# Set the sysroot.
-override WASM_CFLAGS += --sysroot="$(SYSROOT)"
+# Include cloudlib's directory to access the structure definition of clockid_t
+CFLAGS += -I$(LIBC_BOTTOM_HALF_CLOUDLIBC_SRC)
+endif
+# Expose the public headers to the implementation. We use `-isystem` for
+# purpose for two reasons:
+#
+# 1. It only does `<...>` not `"...."` lookup. We are making a libc,
+# which is a system library, so all public headers should be
+# accessible via `<...>` and never also need `"..."`. `-isystem` main
+# purpose is to only effect `<...>` lookup.
+#
+# 2. The `-I` for private headers added for specific C files below
+# should come earlier in the search path, so they can "override"
+# and/or `#include_next` the public headers. `-isystem` (like
+# `-idirafter`) comes later in the search path than `-I`.
+CFLAGS += -isystem "$(SYSROOT_INC)"
+
+# These variables describe the locations of various files and directories in
+# the build tree.
objs = $(patsubst $(CURDIR)/%.c,$(OBJDIR)/%.o,$(1))
-override BASICS_OBJS = $(call objs,$(BASICS_SOURCES))
-override DLMALLOC_OBJS = $(call objs,$(DLMALLOC_SOURCES))
-override LIBC_BOTTOM_HALF_ALL_OBJS = $(call objs,$(LIBC_BOTTOM_HALF_ALL_SOURCES))
-override LIBC_TOP_HALF_ALL_OBJS = $(call objs,$(LIBC_TOP_HALF_ALL_SOURCES))
-override LIBC_OBJS := $(BASICS_OBJS)
-ifeq ($(BUILD_DLMALLOC),yes)
-override LIBC_OBJS += $(DLMALLOC_OBJS)
+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 = $(call asmobjs,$(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
+$(error unknown malloc implementation $(MALLOC_IMPL))
endif
-ifeq ($(BUILD_LIBC_BOTTOM_HALF),yes)
-# Override basics' string.o with libc-bottom-half's.
-override LIBC_OBJS := $(filter-out %/string.o,$(LIBC_OBJS))
# Add libc-bottom-half's objects.
-override LIBC_OBJS += $(LIBC_BOTTOM_HALF_ALL_OBJS)
-endif
+LIBC_OBJS += $(LIBC_BOTTOM_HALF_ALL_OBJS)
ifeq ($(BUILD_LIBC_TOP_HALF),yes)
-# Override libc-bottom-half's string.o with libc-top-half's.
-override LIBC_OBJS := $(filter-out %/string.o,$(LIBC_OBJS))
-# Override libc-bottom-half's qsort.o with libc-top-half's.
-override LIBC_OBJS := $(filter-out %/qsort.o,$(LIBC_OBJS))
# libc-top-half is musl.
-override LIBC_OBJS += $(LIBC_TOP_HALF_ALL_OBJS)
+LIBC_OBJS += $(LIBC_TOP_HALF_ALL_OBJS)
endif
-override MUSL_PRINTSCAN_OBJS = $(call objs,$(MUSL_PRINTSCAN_SOURCES))
-override MUSL_PRINTSCAN_LONG_DOUBLE_OBJS = $(patsubst %.o,%.long-double.o,$(MUSL_PRINTSCAN_OBJS))
-override MUSL_PRINTSCAN_NO_FLOATING_POINT_OBJS = $(patsubst %.o,%.no-floating-point.o,$(MUSL_PRINTSCAN_OBJS))
-override LIBWASI_EMULATED_MMAN_OBJS = $(call objs,$(LIBWASI_EMULATED_MMAN_SOURCES))
+MUSL_PRINTSCAN_OBJS = $(call objs,$(MUSL_PRINTSCAN_SOURCES))
+MUSL_PRINTSCAN_LONG_DOUBLE_OBJS = $(patsubst %.o,%.long-double.o,$(MUSL_PRINTSCAN_OBJS))
+MUSL_PRINTSCAN_NO_FLOATING_POINT_OBJS = $(patsubst %.o,%.no-floating-point.o,$(MUSL_PRINTSCAN_OBJS))
+BULK_MEMORY_OBJS = $(call objs,$(BULK_MEMORY_SOURCES))
+LIBWASI_EMULATED_MMAN_OBJS = $(call objs,$(LIBWASI_EMULATED_MMAN_SOURCES))
+LIBWASI_EMULATED_PROCESS_CLOCKS_OBJS = $(call objs,$(LIBWASI_EMULATED_PROCESS_CLOCKS_SOURCES))
+LIBWASI_EMULATED_GETPID_OBJS = $(call objs,$(LIBWASI_EMULATED_GETPID_SOURCES))
+LIBWASI_EMULATED_SIGNAL_OBJS = $(call objs,$(LIBWASI_EMULATED_SIGNAL_SOURCES))
+LIBWASI_EMULATED_SIGNAL_MUSL_OBJS = $(call objs,$(LIBWASI_EMULATED_SIGNAL_MUSL_SOURCES))
+
+# These variables describe the locations of various files and
+# directories in the generated sysroot tree.
+SYSROOT_LIB := $(SYSROOT)/lib/$(TARGET_TRIPLE)
+SYSROOT_INC = $(SYSROOT)/include
+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.
-override MUSL_OMIT_HEADERS :=
+MUSL_OMIT_HEADERS :=
# Remove files which aren't headers (we generate alltypes.h below).
-override MUSL_OMIT_HEADERS += \
+MUSL_OMIT_HEADERS += \
"bits/syscall.h.in" \
"bits/alltypes.h.in" \
"alltypes.h.in"
# Use the compiler's version of these headers.
-override MUSL_OMIT_HEADERS += \
+MUSL_OMIT_HEADERS += \
"stdarg.h" \
"stddef.h"
# Use the WASI errno definitions.
-override MUSL_OMIT_HEADERS += \
+MUSL_OMIT_HEADERS += \
"bits/errno.h"
# Remove headers that aren't supported yet or that aren't relevant for WASI.
-override MUSL_OMIT_HEADERS += \
+MUSL_OMIT_HEADERS += \
"sys/procfs.h" \
"sys/user.h" \
"sys/kd.h" "sys/vt.h" "sys/soundcard.h" "sys/sem.h" \
"net/route.h" \
"netinet/if_ether.h" \
"netinet/ether.h" \
- "sys/timerfd.h"
+ "sys/timerfd.h" \
+ "libintl.h" \
+ "sys/sysmacros.h" \
+ "aio.h"
ifeq ($(THREAD_MODEL), single)
# Remove headers not supported in single-threaded mode.
-override MUSL_OMIT_HEADERS += "aio.h" "pthread.h"
+MUSL_OMIT_HEADERS += "pthread.h"
endif
-default: check
+default: finish
$(SYSROOT_LIB)/libc.a: $(LIBC_OBJS)
$(SYSROOT_LIB)/libwasi-emulated-mman.a: $(LIBWASI_EMULATED_MMAN_OBJS)
+$(SYSROOT_LIB)/libwasi-emulated-process-clocks.a: $(LIBWASI_EMULATED_PROCESS_CLOCKS_OBJS)
+
+$(SYSROOT_LIB)/libwasi-emulated-getpid.a: $(LIBWASI_EMULATED_GETPID_OBJS)
+
+$(SYSROOT_LIB)/libwasi-emulated-signal.a: $(LIBWASI_EMULATED_SIGNAL_OBJS) $(LIBWASI_EMULATED_SIGNAL_MUSL_OBJS)
+
%.a:
@mkdir -p "$(@D)"
# On Windows, the commandline for the ar invocation got too long, so it needs to be split up.
- $(WASM_AR) crs $@ $(wordlist 1, 199, $^)
- $(WASM_AR) crs $@ $(wordlist 200, 399, $^)
- $(WASM_AR) crs $@ $(wordlist 400, 599, $^)
- $(WASM_AR) crs $@ $(wordlist 600, 799, $^)
+ $(AR) crs $@ $(wordlist 1, 199, $^)
+ $(AR) crs $@ $(wordlist 200, 399, $^)
+ $(AR) crs $@ $(wordlist 400, 599, $^)
+ $(AR) crs $@ $(wordlist 600, 799, $^)
# This might eventually overflow again, but at least it'll do so in a loud way instead of
# silently dropping the tail.
- $(WASM_AR) crs $@ $(wordlist 800, 100000, $^)
+ $(AR) crs $@ $(wordlist 800, 100000, $^)
-$(MUSL_PRINTSCAN_OBJS): override WASM_CFLAGS += \
+$(MUSL_PRINTSCAN_OBJS): CFLAGS += \
-D__wasilibc_printscan_no_long_double \
-D__wasilibc_printscan_full_support_option="\"add -lc-printscan-long-double to the link command\""
-$(MUSL_PRINTSCAN_NO_FLOATING_POINT_OBJS): override WASM_CFLAGS += \
+$(MUSL_PRINTSCAN_NO_FLOATING_POINT_OBJS): CFLAGS += \
-D__wasilibc_printscan_no_floating_point \
-D__wasilibc_printscan_floating_point_support_option="\"remove -lc-printscan-no-floating-point from the link command\""
+# TODO: apply -mbulk-memory globally, once
+# https://github.com/llvm/llvm-project/issues/52618 is resolved
+$(BULK_MEMORY_OBJS): CFLAGS += \
+ -mbulk-memory
+
+$(BULK_MEMORY_OBJS): CFLAGS += \
+ -DBULK_MEMORY_THRESHOLD=$(BULK_MEMORY_THRESHOLD)
+
+$(LIBWASI_EMULATED_SIGNAL_MUSL_OBJS): CFLAGS += \
+ -D_WASI_EMULATED_SIGNAL
+
$(OBJDIR)/%.long-double.o: $(CURDIR)/%.c include_dirs
@mkdir -p "$(@D)"
- "$(WASM_CC)" $(WASM_CFLAGS) -MD -MP -o $@ -c $<
+ $(CC) $(CFLAGS) -MD -MP -o $@ -c $<
$(OBJDIR)/%.no-floating-point.o: $(CURDIR)/%.c include_dirs
@mkdir -p "$(@D)"
- "$(WASM_CC)" $(WASM_CFLAGS) -MD -MP -o $@ -c $<
+ $(CC) $(CFLAGS) -MD -MP -o $@ -c $<
$(OBJDIR)/%.o: $(CURDIR)/%.c include_dirs
@mkdir -p "$(@D)"
- "$(WASM_CC)" $(WASM_CFLAGS) -MD -MP -o $@ -c $<
+ $(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): override WASM_CFLAGS += \
+$(DLMALLOC_OBJS): CFLAGS += \
-I$(DLMALLOC_INC)
-startup_files $(LIBC_BOTTOM_HALF_ALL_OBJS): override WASM_CFLAGS += \
+startup_files $(LIBC_BOTTOM_HALF_ALL_OBJS): CFLAGS += \
-I$(LIBC_BOTTOM_HALF_HEADERS_PRIVATE) \
-I$(LIBC_BOTTOM_HALF_CLOUDLIBC_SRC_INC) \
-I$(LIBC_BOTTOM_HALF_CLOUDLIBC_SRC) \
- -I$(LIBC_BOTTOM_HALF_LIBPREOPEN_LIB) \
- -I$(LIBC_BOTTOM_HALF_LIBPREOPEN_INC)
+ -I$(LIBC_TOP_HALF_MUSL_SRC_DIR)/include \
+ -I$(LIBC_TOP_HALF_MUSL_SRC_DIR)/internal
-$(LIBC_TOP_HALF_ALL_OBJS) $(MUSL_PRINTSCAN_LONG_DOUBLE_OBJS) $(MUSL_PRINTSCAN_NO_FLOATING_POINT_OBJS): override WASM_CFLAGS += \
+$(LIBC_TOP_HALF_ALL_OBJS) $(MUSL_PRINTSCAN_LONG_DOUBLE_OBJS) $(MUSL_PRINTSCAN_NO_FLOATING_POINT_OBJS) $(LIBWASI_EMULATED_SIGNAL_MUSL_OBJS): CFLAGS += \
-I$(LIBC_TOP_HALF_MUSL_SRC_DIR)/include \
-I$(LIBC_TOP_HALF_MUSL_SRC_DIR)/internal \
-I$(LIBC_TOP_HALF_MUSL_DIR)/arch/wasm32 \
-Wno-dangling-else \
-Wno-unknown-pragmas
-include_dirs:
- $(RM) -r "$(SYSROOT)"
+$(LIBWASI_EMULATED_PROCESS_CLOCKS_OBJS): CFLAGS += \
+ -I$(LIBC_BOTTOM_HALF_CLOUDLIBC_SRC)
+include_dirs:
#
# Install the include files.
#
mkdir -p "$(SYSROOT_INC)"
- cp -r "$(BASICS_INC)" "$(SYSROOT)"
cp -r "$(LIBC_BOTTOM_HALF_HEADERS_PUBLIC)"/* "$(SYSROOT_INC)"
# Generate musl's bits/alltypes.h header.
# Remove selected header files.
$(RM) $(patsubst %,$(SYSROOT_INC)/%,$(MUSL_OMIT_HEADERS))
-ifeq ($(BUILD_LIBC_BOTTOM_HALF),no)
-override CRT_SOURCES = $(BASICS_CRT_SOURCES)
-else
-override CRT_SOURCES = $(LIBC_BOTTOM_HALF_CRT_SOURCES)
-endif
-
startup_files: include_dirs
#
# Build the startup files.
#
@mkdir -p "$(OBJDIR)"
cd "$(OBJDIR)" && \
- "$(WASM_CC)" $(WASM_CFLAGS) -c $(CRT_SOURCES) -MD -MP && \
+ $(CC) $(CFLAGS) -c $(LIBC_BOTTOM_HALF_CRT_SOURCES) -MD -MP && \
mkdir -p "$(SYSROOT_LIB)" && \
mv *.o "$(SYSROOT_LIB)"
$(SYSROOT_LIB)/libc.a \
$(SYSROOT_LIB)/libc-printscan-long-double.a \
$(SYSROOT_LIB)/libc-printscan-no-floating-point.a \
- $(SYSROOT_LIB)/libwasi-emulated-mman.a
+ $(SYSROOT_LIB)/libwasi-emulated-mman.a \
+ $(SYSROOT_LIB)/libwasi-emulated-process-clocks.a \
+ $(SYSROOT_LIB)/libwasi-emulated-getpid.a \
+ $(SYSROOT_LIB)/libwasi-emulated-signal.a
finish: startup_files libc
#
# Create empty placeholder libraries.
#
for name in m rt pthread crypt util xnet resolv dl; do \
- $(WASM_AR) crs "$(SYSROOT_LIB)/lib$${name}.a"; \
+ $(AR) crs "$(SYSROOT_LIB)/lib$${name}.a"; \
done
+ #
+ # The build succeeded! The generated sysroot is in $(SYSROOT).
+ #
+
+# The check for defined and undefined symbols expects there to be a heap
+# alloctor (providing malloc, calloc, free, etc). Skip this step if the build
+# is done without a malloc implementation.
+ifneq ($(MALLOC_IMPL),none)
+finish: check-symbols
+endif
+
+DEFINED_SYMBOLS = $(SYSROOT_SHARE)/defined-symbols.txt
+UNDEFINED_SYMBOLS = $(SYSROOT_SHARE)/undefined-symbols.txt
+
+check-symbols: startup_files libc
#
# Collect metadata on the sysroot and perform sanity checks.
#
mkdir -p "$(SYSROOT_SHARE)"
+ #
# Collect symbol information.
- # TODO: Use llvm-nm --extern-only instead of grep. This is blocked on
- # LLVM PR40497, which is fixed in 9.0, but not in 8.0.
- # Ignore certain llvm builtin symbols such as those starting with __mul
- # since these dependencies can vary between llvm versions.
- "$(WASM_NM)" --defined-only "$(SYSROOT_LIB)"/libc.a "$(SYSROOT_LIB)"/*.o \
- |grep ' [[:upper:]] ' |sed 's/.* [[:upper:]] //' |LC_ALL=C sort > "$(SYSROOT_SHARE)/defined-symbols.txt"
- for undef_sym in $$("$(WASM_NM)" --undefined-only "$(SYSROOT_LIB)"/*.a "$(SYSROOT_LIB)"/*.o \
+ #
+ @# TODO: Use llvm-nm --extern-only instead of grep. This is blocked on
+ @# LLVM PR40497, which is fixed in 9.0, but not in 8.0.
+ @# Ignore certain llvm builtin symbols such as those starting with __mul
+ @# since these dependencies can vary between llvm versions.
+ "$(NM)" --defined-only "$(SYSROOT_LIB)"/libc.a "$(SYSROOT_LIB)"/libwasi-emulated-*.a "$(SYSROOT_LIB)"/*.o \
+ |grep ' [[:upper:]] ' |sed 's/.* [[:upper:]] //' |LC_ALL=C sort |uniq > "$(DEFINED_SYMBOLS)"
+ for undef_sym in $$("$(NM)" --undefined-only "$(SYSROOT_LIB)"/libc.a "$(SYSROOT_LIB)"/libc-*.a "$(SYSROOT_LIB)"/*.o \
|grep ' U ' |sed 's/.* U //' |LC_ALL=C sort |uniq); do \
- grep -q '\<'$$undef_sym'\>' "$(SYSROOT_SHARE)/defined-symbols.txt" || echo $$undef_sym; \
- done | grep -v "^__mul" > "$(SYSROOT_SHARE)/undefined-symbols.txt"
- grep '^_*wasi_' "$(SYSROOT_SHARE)/undefined-symbols.txt" \
+ grep -q '\<'$$undef_sym'\>' "$(DEFINED_SYMBOLS)" || echo $$undef_sym; \
+ done | grep -v "^__mul" > "$(UNDEFINED_SYMBOLS)"
+ grep '^_*imported_wasi_' "$(UNDEFINED_SYMBOLS)" \
> "$(SYSROOT_LIB)/libc.imports"
- # Generate a test file that includes all public header files.
- cd "$(SYSROOT)" && \
- for header in $$(find include -type f -not -name mman.h |grep -v /bits/); do \
- echo '#include <'$$header'>' | sed 's/include\///' ; \
- done |LC_ALL=C sort >share/$(MULTIARCH_TRIPLE)/include-all.c ; \
+ #
+ # Generate a test file that includes all public C header files.
+ #
+ cd "$(SYSROOT_INC)" && \
+ for header in $$(find . -type f -not -name mman.h -not -name signal.h -not -name times.h -not -name resource.h |grep -v /bits/ |grep -v /c++/); do \
+ echo '#include <'$$header'>' | sed 's/\.\///' ; \
+ done |LC_ALL=C sort >$(SYSROOT_SHARE)/include-all.c ; \
cd - >/dev/null
+ #
# Test that it compiles.
- "$(WASM_CC)" $(WASM_CFLAGS) -fsyntax-only "$(SYSROOT_SHARE)/include-all.c" -Wno-\#warnings
+ #
+ $(CC) $(CFLAGS) -fsyntax-only "$(SYSROOT_SHARE)/include-all.c" -Wno-\#warnings
- # Collect all the predefined macros, except for compiler version macros
- # which we don't need to track here. For the __*_ATOMIC_*_LOCK_FREE
- # macros, squash individual compiler names to attempt, toward keeping
- # these files compiler-independent.
#
- # We have to add `-isystem $(SYSROOT_INC)` because otherwise clang puts
- # its builtin include path first, which produces compiler-specific
- # output.
+ # Collect all the predefined macros, except for compiler version macros
+ # which we don't need to track here.
#
- # TODO: Undefine __FLOAT128__ for now since it's not in clang 8.0.
- # TODO: Filter out __FLT16_* for now, as not all versions of clang have these.
- "$(WASM_CC)" $(WASM_CFLAGS) "$(SYSROOT_SHARE)/include-all.c" \
+ @#
+ @# For the __*_ATOMIC_*_LOCK_FREE macros, squash individual compiler names
+ @# to attempt, toward keeping these files compiler-independent.
+ @#
+ @# We have to add `-isystem $(SYSROOT_INC)` because otherwise clang puts
+ @# its builtin include path first, which produces compiler-specific
+ @# output.
+ @#
+ @# 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 \
-E -dM -Wno-\#warnings \
-D_ALL_SOURCE \
-U__llvm__ \
-U__clang_minor__ \
-U__clang_patchlevel__ \
-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"
- #
- # The build succeeded! The generated sysroot is in $(SYSROOT).
- #
-
-check: finish
# Check that the computed metadata matches the expected metadata.
# This ignores whitespace because on Windows the output has CRLF line endings.
- diff -wur "$(CURDIR)/expected/$(MULTIARCH_TRIPLE)" "$(SYSROOT_SHARE)"
+ diff -wur "$(CURDIR)/expected/$(TARGET_TRIPLE)" "$(SYSROOT_SHARE)"
install: finish
mkdir -p "$(INSTALL_DIR)"
cp -r "$(SYSROOT)/lib" "$(SYSROOT)/share" "$(SYSROOT)/include" "$(INSTALL_DIR)"
-.PHONY: default startup_files libc finish check install include_dirs
+clean:
+ $(RM) -r "$(OBJDIR)"
+ $(RM) -r "$(SYSROOT)"
+
+.PHONY: default startup_files libc finish install include_dirs clean
projects / wasi-libc.git / blobdiff