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https://github.com/wolfSSL/wolfssl.git
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rizlik
136 lines
5.3 KiB
Makefile
136 lines
5.3 KiB
Makefile
# tests/swdev/Makefile -- builds swdev.o.
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#
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# Standalone: cd tests/swdev && make
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# Invoked from wolfcrypt/test/include.am in the main build.
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SRCDIR ?= $(CURDIR)
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WOLFROOT ?= $(abspath $(SRCDIR)/../..)
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BUILDDIR ?= $(SRCDIR)/build
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CC ?= cc
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CCAS ?= $(CC)
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LD ?= ld
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OBJCOPY ?= objcopy
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NM ?= nm
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SWDEV_LOCAL_SRCS = swdev.c
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# PARENT_SRCS / PARENT_ASM_SRCS mirror the exact source set that the
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# parent build compiled into libwolfssl (passed down by wolfcrypt/test/include.am).
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# The configure.ac gate already requires in-tree builds, so PARENT_SRCS
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# is always populated when swdev is built in-tree; fail loudly otherwise.
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ifeq ($(strip $(PARENT_SRCS)),)
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$(error PARENT_SRCS is empty -- swdev must be built from the top-level \
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Makefile so its source set matches the main library)
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endif
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SWDEV_CRYPT_SRCS = $(filter wolfcrypt/src/%,$(PARENT_SRCS))
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SWDEV_SSL_SRCS = $(filter src/%,$(PARENT_SRCS))
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SWDEV_ASM_SRCS = $(PARENT_ASM_SRCS)
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# -I$(SRCDIR) routes settings.h to the swdev's user_settings.h.
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# No BUILDING_WOLFSSL so WOLFSSL_API/LOCAL stay empty; then -fvisibility=hidden
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# hides every emitted symbol.
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# -I$(SRCDIR) is placed FIRST so that tests/swdev/user_settings.h wins over
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# any user_settings.h in the parent's include path.
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CPPFLAGS_SWDEV = \
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-DWOLFSSL_USER_SETTINGS \
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-I$(SRCDIR) \
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$(PARENT_CPPFLAGS) \
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-I$(WOLFROOT) \
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-I$(WOLFROOT)/wolfssl
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# Ask the compiler (via -E -H) where it would find user_settings.h under the
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# parent's exact flags (no -I$(SRCDIR) added so we get the parent's file, not
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# ours), then pass that path into swdev/user_settings.h as a string macro so it
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# can #include the right file.
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ifneq ($(filter -DWOLFSSL_USER_SETTINGS,$(PARENT_BUILD_CFLAGS) $(PARENT_CPPFLAGS)),)
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PARENT_USER_SETTINGS_H := $(strip $(shell \
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printf '\043include <user_settings.h>\n' | \
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$(CC) $(PARENT_BUILD_CFLAGS) $(PARENT_CFLAGS) $(PARENT_CPPFLAGS) \
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-I$(WOLFROOT) \
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-x c -E -H -o /dev/null - 2>&1 | \
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awk '/user_settings\.h$$/ { sub(/^\.+ /, ""); print; exit }'))
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ifeq ($(PARENT_USER_SETTINGS_H),)
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$(warning swdev: parent declares WOLFSSL_USER_SETTINGS but compiler could \
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not locate user_settings.h; ensure -I<dir> is in CPPFLAGS or CFLAGS)
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endif
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ifneq ($(PARENT_USER_SETTINGS_H),)
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CPPFLAGS_SWDEV += -DSWDEV_PARENT_USER_SETTINGS_H=\"$(PARENT_USER_SETTINGS_H)\"
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endif
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endif
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# Choose between options.h and parent user_settings.h
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ifeq ($(PARENT_USER_SETTINGS_H),)
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SWDEV_CFG_PREREQ = $(WOLFROOT)/wolfssl/options.h
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else
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SWDEV_CFG_PREREQ = $(PARENT_USER_SETTINGS_H)
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endif
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# -fvisibility=hidden + -fno-common mark every symbol hidden at the ELF
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# level (ABI-safe: attribute only, no struct layout impact). Optimization
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# level and other flags are inherited from the parent build (PARENT_*_CFLAGS)
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# so codegen stays in lockstep with libwolfssl. Use EXTRA_SWDEV_CFLAGS to
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# append debug flags (e.g. -O0 -ggdb) on demand.
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CFLAGS_SWDEV = \
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$(PARENT_BUILD_CFLAGS) \
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$(PARENT_CFLAGS) \
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-fvisibility=hidden \
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-fno-common \
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-Wno-pragmas \
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$(EXTRA_SWDEV_CFLAGS)
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CCASFLAGS_SWDEV = \
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$(PARENT_BUILD_CCASFLAGS) \
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$(PARENT_CCASFLAGS)
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CRYPT_OBJS = $(patsubst wolfcrypt/src/%.c,$(BUILDDIR)/wc/%.o,$(SWDEV_CRYPT_SRCS))
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SSL_OBJS = $(patsubst src/%.c,$(BUILDDIR)/ssl/%.o,$(SWDEV_SSL_SRCS))
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ASM_OBJS = $(patsubst wolfcrypt/src/%.S,$(BUILDDIR)/wc/%.o,$(SWDEV_ASM_SRCS))
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LOCAL_OBJS = $(patsubst %.c,$(BUILDDIR)/local/%.o,$(SWDEV_LOCAL_SRCS))
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ALL_OBJS = $(CRYPT_OBJS) $(SSL_OBJS) $(ASM_OBJS) $(LOCAL_OBJS)
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.PHONY: all clean
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all: $(BUILDDIR)/swdev.o
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$(BUILDDIR)/wc/%.o: $(WOLFROOT)/wolfcrypt/src/%.c $(SRCDIR)/user_settings.h $(SWDEV_CFG_PREREQ) | $(BUILDDIR)/wc
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$(CC) $(CPPFLAGS_SWDEV) $(CFLAGS_SWDEV) -c $< -o $@
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$(BUILDDIR)/wc/%.o: $(WOLFROOT)/wolfcrypt/src/%.S $(SRCDIR)/user_settings.h $(SWDEV_CFG_PREREQ) | $(BUILDDIR)/wc
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$(CCAS) $(CPPFLAGS_SWDEV) $(CCASFLAGS_SWDEV) -c $< -o $@
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$(BUILDDIR)/ssl/%.o: $(WOLFROOT)/src/%.c $(SRCDIR)/user_settings.h $(SWDEV_CFG_PREREQ) | $(BUILDDIR)/ssl
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$(CC) $(CPPFLAGS_SWDEV) $(CFLAGS_SWDEV) -c $< -o $@
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$(BUILDDIR)/local/%.o: $(SRCDIR)/%.c $(SRCDIR)/swdev.h $(SRCDIR)/user_settings.h $(SWDEV_CFG_PREREQ) | $(BUILDDIR)/local
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$(CC) $(CPPFLAGS_SWDEV) $(CFLAGS_SWDEV) -c $< -o $@
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$(BUILDDIR)/swdev.partial.o: $(ALL_OBJS)
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$(LD) -r -o $@ $(ALL_OBJS)
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$(BUILDDIR)/swdev.o: $(BUILDDIR)/swdev.partial.o
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@# --keep-global-symbol localizes every global symbol *except* the
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@# named one. We can't rely on --localize-hidden here because
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@# wolfssl/wolfcrypt/libwolfssl_sources.h auto-defines BUILDING_WOLFSSL
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@# at the top of every compiled source, which expands WOLFSSL_API to
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@# visibility("default") and overrides the command-line
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@# -fvisibility=hidden. --keep-global-symbol sidesteps that by matching
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@# on symbol name directly.
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$(OBJCOPY) --keep-global-symbol=wc_SwDev_Callback \
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--keep-global-symbol=wc_SwDev_InternalCleanup $< $@
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@# Sanity-check: only the two swdev entry points may be externally visible.
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@visible=$$( $(NM) --extern-only --defined-only $@ | awk '{print $$3}' \
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| grep -v '^wc_SwDev_Callback$$' \
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| grep -v '^wc_SwDev_InternalCleanup$$' || true); \
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if [ -n "$$visible" ]; then \
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echo "error: unexpected externally-visible symbols in $@:"; \
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echo "$$visible"; \
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exit 1; \
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fi
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$(BUILDDIR) $(BUILDDIR)/wc $(BUILDDIR)/ssl $(BUILDDIR)/local:
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mkdir -p $@
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clean:
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rm -rf $(BUILDDIR)
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