prevent allocs than PTRDIFF_MAX via mremap

[musl] / Makefile

diff --git a/Makefile b/Makefile
index 3bd7b4d..b2226fa 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -51,6 +51,9 @@ TOOL_LIBS = lib/musl-gcc.specs
 ALL_LIBS = $(CRT_LIBS) $(STATIC_LIBS) $(SHARED_LIBS) $(EMPTY_LIBS) $(TOOL_LIBS)
 ALL_TOOLS = tools/musl-gcc
 
+WRAPCC_GCC = gcc
+WRAPCC_CLANG = clang
+
 LDSO_PATHNAME = $(syslibdir)/ld-musl-$(ARCH)$(SUBARCH).so.1
 
 -include config.mak
@@ -85,26 +88,28 @@ src/internal/version.h: $(wildcard VERSION .git)
 
 src/internal/version.lo: src/internal/version.h
 
-src/ldso/dlstart.lo src/ldso/dynlink.lo: src/internal/dynlink.h arch/$(ARCH)/reloc.h
+crt/rcrt1.o src/ldso/dlstart.lo src/ldso/dynlink.lo: src/internal/dynlink.h arch/$(ARCH)/reloc.h
+
+crt/crt1.o crt/Scrt1.o crt/rcrt1.o src/ldso/dlstart.lo: $(wildcard arch/$(ARCH)/crt_arch.h)
 
-crt/crt1.o crt/Scrt1.o src/ldso/dlstart.lo: $(wildcard arch/$(ARCH)/crt_arch.h)
+crt/rcrt1.o: src/ldso/dlstart.c
 
-crt/Scrt1.o crt/rcrt1.o: CFLAGS += -fPIC
+crt/Scrt1.o crt/rcrt1.o: CFLAGS_ALL += -fPIC
 
 OPTIMIZE_SRCS = $(wildcard $(OPTIMIZE_GLOBS:%=src/%))
 $(OPTIMIZE_SRCS:%.c=%.o) $(OPTIMIZE_SRCS:%.c=%.lo): CFLAGS += -O3
 
 MEMOPS_SRCS = src/string/memcpy.c src/string/memmove.c src/string/memcmp.c src/string/memset.c
-$(MEMOPS_SRCS:%.c=%.o) $(MEMOPS_SRCS:%.c=%.lo): CFLAGS += $(CFLAGS_MEMOPS)
+$(MEMOPS_SRCS:%.c=%.o) $(MEMOPS_SRCS:%.c=%.lo): CFLAGS_ALL += $(CFLAGS_MEMOPS)
 
 NOSSP_SRCS = $(wildcard crt/*.c) \
        src/env/__libc_start_main.c src/env/__init_tls.c \
        src/thread/__set_thread_area.c src/env/__stack_chk_fail.c \
        src/string/memset.c src/string/memcpy.c \
        src/ldso/dlstart.c src/ldso/dynlink.c
-$(NOSSP_SRCS:%.c=%.o) $(NOSSP_SRCS:%.c=%.lo): CFLAGS += $(CFLAGS_NOSSP)
+$(NOSSP_SRCS:%.c=%.o) $(NOSSP_SRCS:%.c=%.lo): CFLAGS_ALL += $(CFLAGS_NOSSP)
 
-$(CRT_LIBS:lib/%=crt/%): CFLAGS += -DCRT
+$(CRT_LIBS:lib/%=crt/%): CFLAGS_ALL += -DCRT
 
 # This incantation ensures that changes to any subarch asm files will
 # force the corresponding object file to be rebuilt, even if the implicit
@@ -114,11 +119,19 @@ $(dir $(patsubst %/,%,$(dir $(1))))$(notdir $(1:.s=.o)): $(1)
 endef
 $(foreach s,$(wildcard src/*/$(ARCH)*/*.s),$(eval $(call mkasmdep,$(s))))
 
+# Choose invocation of assembler to be used
+# $(1) is input file, $(2) is output file, $(3) is assembler flags
+ifeq ($(ADD_CFI),yes)
+       AS_CMD = LC_ALL=C awk -f tools/add-cfi.common.awk -f tools/add-cfi.$(ARCH).awk $< | $(CC) -x assembler -c -o $@ -
+else
+       AS_CMD = $(CC) -c -o $@ $<
+endif
+
 %.o: $(ARCH)$(ASMSUBARCH)/%.sub
        $(CC) $(CFLAGS_ALL_STATIC) -c -o $@ $(dir $<)$(shell cat $<)
 
 %.o: $(ARCH)/%.s
-       $(CC) $(CFLAGS_ALL_STATIC) -c -o $@ $<
+       $(AS_CMD) $(CFLAGS_ALL_STATIC)
 
 %.o: %.c $(GENH) $(IMPH)
        $(CC) $(CFLAGS_ALL_STATIC) -c -o $@ $<
@@ -127,7 +140,7 @@ $(foreach s,$(wildcard src/*/$(ARCH)*/*.s),$(eval $(call mkasmdep,$(s))))
        $(CC) $(CFLAGS_ALL_SHARED) -c -o $@ $(dir $<)$(shell cat $<)
 
 %.lo: $(ARCH)/%.s
-       $(CC) $(CFLAGS_ALL_SHARED) -c -o $@ $<
+       $(AS_CMD) $(CFLAGS_ALL_SHARED)
 
 %.lo: %.c $(GENH) $(IMPH)
        $(CC) $(CFLAGS_ALL_SHARED) -c -o $@ $<
@@ -153,7 +166,11 @@ lib/musl-gcc.specs: tools/musl-gcc.specs.sh config.mak
        sh $< "$(includedir)" "$(libdir)" "$(LDSO_PATHNAME)" > $@
 
 tools/musl-gcc: config.mak
-       printf '#!/bin/sh\nexec "$${REALGCC:-gcc}" "$$@" -specs "%s/musl-gcc.specs"\n' "$(libdir)" > $@
+       printf '#!/bin/sh\nexec "$${REALGCC:-$(WRAPCC_GCC)}" "$$@" -specs "%s/musl-gcc.specs"\n' "$(libdir)" > $@
+       chmod +x $@
+
+tools/%-clang: tools/%-clang.in config.mak
+       sed -e 's!@CC@!$(WRAPCC_CLANG)!g' -e 's!@PREFIX@!$(prefix)!g' -e 's!@INCDIR@!$(includedir)!g' -e 's!@LIBDIR@!$(libdir)!g' -e 's!@LDSO@!$(LDSO_PATHNAME)!g' $< > $@
        chmod +x $@
 
 $(DESTDIR)$(bindir)/%: tools/%
@@ -186,6 +203,4 @@ musl-git-%.tar.gz: .git
 musl-%.tar.gz: .git
         git archive --format=tar.gz --prefix=$(patsubst %.tar.gz,%,$@)/ -o $@ v$(patsubst musl-%.tar.gz,%,$@)
 
-.PRECIOUS: $(CRT_LIBS:lib/%=crt/%)
-
 .PHONY: all clean install install-libs install-headers install-tools