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| author | Rich Felker <dalias@aerifal.cx> | 2016-02-17 13:56:27 -0500 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2016-02-17 13:56:27 -0500 |
| commit | 63bcda4d8f4074e9d92ae156afd0dced6e64eb65 (patch) | |
| tree | 8fe6470734420d41cce465e7f89e13021ad4f9d4 | |
| parent | 80fbaac4cd1930e9545a5d36bf46ae49011d2ce8 (diff) | |
| download | musl-63bcda4d8f4074e9d92ae156afd0dced6e64eb65.tar.gz musl-63bcda4d8f4074e9d92ae156afd0dced6e64eb65.tar.bz2 musl-63bcda4d8f4074e9d92ae156afd0dced6e64eb65.tar.xz musl-63bcda4d8f4074e9d92ae156afd0dced6e64eb65.zip | |
adjust makefile to make crt/ and ldso/ sources arch-replaceable
prior to commit 2f853dd6b9a95d5b13ee8f9df762125e0588df5d which
overhauled the makefile for out-of-tree builds, crt/*.c files were
replaceable by crt/$(ARCH)/*.s, and top-level ldso/ did not exist (its
files were under src/ldso). since then, crti.o and crtn.o have been
hard-coded as arch-specific, but none of the other files in crt/ or
ldso/ were replaceable at all.
in preparation for easy integration with midipix, which has a port of
musl to windows, it needs to be possible to override the ELF-specific
code in these files. making the same arch-replacements system work
throughout the whole source tree also improves consistency and removes
the need for some file-specific rules (crti.o and crtn.o) in the
makefile.
| -rw-r--r-- | Makefile | 33 |
1 files changed, 18 insertions, 15 deletions
@@ -17,16 +17,22 @@ includedir = $(prefix)/include libdir = $(prefix)/lib syslibdir = /lib -BASE_SRCS = $(sort $(wildcard $(srcdir)/src/*/*.c)) +SRC_DIRS = $(addprefix $(srcdir)/,src/* crt ldso) +BASE_GLOBS = $(addsuffix /*.c,$(SRC_DIRS)) +ARCH_GLOBS = $(addsuffix /$(ARCH)/*.[csS],$(SRC_DIRS)) +BASE_SRCS = $(sort $(wildcard $(BASE_GLOBS))) +ARCH_SRCS = $(sort $(wildcard $(ARCH_GLOBS))) BASE_OBJS = $(patsubst $(srcdir)/%,%.o,$(basename $(BASE_SRCS))) -ARCH_SRCS = $(wildcard $(srcdir)/src/*/$(ARCH)/*.[csS]) ARCH_OBJS = $(patsubst $(srcdir)/%,%.o,$(basename $(ARCH_SRCS))) REPLACED_OBJS = $(sort $(subst /$(ARCH)/,/,$(ARCH_OBJS))) -LDSO_SRCS = $(sort $(wildcard $(srcdir)/ldso/*.c)) -LDSO_OBJS = $(patsubst $(srcdir)/%,obj/%.lo,$(basename $(LDSO_SRCS))) -OBJS = $(addprefix obj/, $(filter-out $(REPLACED_OBJS), $(sort $(BASE_OBJS) $(ARCH_OBJS)))) -AOBJS = $(OBJS) -LOBJS = $(OBJS:.o=.lo) +ALL_OBJS = $(addprefix obj/, $(filter-out $(REPLACED_OBJS), $(sort $(BASE_OBJS) $(ARCH_OBJS)))) + +LIBC_OBJS = $(filter obj/src/%,$(ALL_OBJS)) +LDSO_OBJS = $(filter obj/ldso/%,$(ALL_OBJS:%.o=%.lo)) +CRT_OBJS = $(filter obj/crt/%,$(ALL_OBJS)) + +AOBJS = $(LIBC_OBJS) +LOBJS = $(LIBC_OBJS:.o=.lo) GENH = obj/include/bits/alltypes.h GENH_INT = obj/src/internal/version.h IMPH = $(addprefix $(srcdir)/, src/internal/stdio_impl.h src/internal/pthread_impl.h src/internal/libc.h) @@ -76,9 +82,9 @@ endif all: $(ALL_LIBS) $(ALL_TOOLS) -OBJ_DIRS = $(sort $(patsubst %/,%,$(dir $(ALL_LIBS) $(ALL_TOOLS) $(OBJS) $(LDSO_OBJS) $(GENH) $(GENH_INT))) $(addprefix obj/, crt crt/$(ARCH) include)) +OBJ_DIRS = $(sort $(patsubst %/,%,$(dir $(ALL_LIBS) $(ALL_TOOLS) $(ALL_OBJS) $(GENH) $(GENH_INT))) obj/include) -$(ALL_LIBS) $(ALL_TOOLS) $(CRT_LIBS:lib/%=obj/crt/%) $(OBJS) $(LOBJS) $(GENH) $(GENH_INT): | $(OBJ_DIRS) +$(ALL_LIBS) $(ALL_TOOLS) $(ALL_OBJS) $(ALL_OBJS:%.o=%.lo) $(GENH) $(GENH_INT): | $(OBJ_DIRS) $(OBJ_DIRS): mkdir -p $@ @@ -126,7 +132,7 @@ NOSSP_SRCS = $(wildcard crt/*.c) \ ldso/dlstart.c ldso/dynlink.c $(NOSSP_SRCS:%.c=obj/%.o) $(NOSSP_SRCS:%.c=obj/%.lo): CFLAGS_ALL += $(CFLAGS_NOSSP) -$(CRT_LIBS:lib/%=obj/crt/%): CFLAGS_ALL += -DCRT +$(CRT_OBJS): CFLAGS_ALL += -DCRT $(LOBJS) $(LDSO_OBJS): CFLAGS_ALL += -fPIC @@ -170,13 +176,10 @@ $(EMPTY_LIBS): rm -f $@ $(AR) rc $@ -lib/%.o: obj/crt/%.o - cp $< $@ - -lib/crti.o: obj/crt/$(ARCH)/crti.o +lib/%.o: obj/crt/$(ARCH)/%.o cp $< $@ -lib/crtn.o: obj/crt/$(ARCH)/crtn.o +lib/%.o: obj/crt/%.o cp $< $@ lib/musl-gcc.specs: $(srcdir)/tools/musl-gcc.specs.sh config.mak |