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-rw-r--r--csu/Makefile36
1 files changed, 18 insertions, 18 deletions
diff --git a/csu/Makefile b/csu/Makefile
index cba8a4a5f5..9664821ec4 100644
--- a/csu/Makefile
+++ b/csu/Makefile
@@ -36,25 +36,12 @@ omit-deps = $(patsubst %.o,%,$(start-installed-name) g$(start-installed-name) \
$(csu-dummies))
install-lib = $(start-installed-name) g$(start-installed-name) \
$(csu-dummies)
-distribute = initfini.c gmon-start.c start.c defs.awk
+distribute = initfini.c gmon-start.c start.c defs.awk abi-note.S abi-tag.h
all: # Make this the default target; it will be defined in Rules.
include ../Makeconfig
-ifneq ($(elf),yes)
-
-# When not using ELF, there is just one startfile, called crt0.o.
-start-installed-name = crt0.o
-
-else
-
-# In the ELF universe, crt0.o is called crt1.o, and there are
-# some additional bizarre files.
-start-installed-name = crt1.o
-have-initfini = yes
-
-endif
ifeq ($(have-initfini),yes)
@@ -75,7 +62,8 @@ $(objpfx)crt%.o: $(objpfx)crt%.S $(objpfx)defs.h
$(CC) -c -fPIC -g0 -I$(..) -I$(common-objpfx) -DASSEMBLER $< -o $@
$(objpfx)initfini.s: initfini.c
- $(CC) -S -fPIC -finhibit-size-directive $(no-exceptions) $< -o $@
+ $(CC) $(CPPFLAGS) $(CFLAGS) -g0 -S -fPIC -finhibit-size-directive \
+ $(no-exceptions) $< -o $@
$(objpfx)crti.S: $(objpfx)initfini.s
sed -n -e '1,/@HEADER_ENDS/p' \
@@ -95,19 +83,31 @@ endif
include ../Rules
+define link-relocatable
+$(CC) -nostdlib -nostartfiles -r -o $@ $^
+endef
+
ifndef start-installed-name-rule
+ifeq (yes,$(elf))
+# We link the ELF startfile along with a SHT_NOTE section indicating
+# the the kernel ABI the binaries linked with this library will require.
+$(objpfx)$(start-installed-name): $(objpfx)start.o $(objpfx)abi-note.o
+ $(link-relocatable)
+else
# The startfile is installed under different names, so we just call our
# source file `start.c' and copy to the installed name after compiling.
$(objpfx)$(start-installed-name): $(objpfx)start.o
- -rm -f $@
+ rm -f $@
ln $< $@
endif
+endif
# The profiling startfile is made by linking together the normal
# startfile with gmon-start.o, which defines a constructor function
# to turn on profiling code at startup.
-$(objpfx)g$(start-installed-name): $(objpfx)start.o $(objpfx)gmon-start.o
- $(CC) -nostdlib -nostartfiles -r -o $@ $^
+$(objpfx)g$(start-installed-name): $(objpfx)$(start-installed-name) \
+ $(objpfx)gmon-start.o
+ $(link-relocatable)
# These extra files are sometimes expected by system standard linking
# procedures, but we have nothing for them to do. So compile empty files.