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author | Roland McGrath <roland@gnu.org> | 1995-02-21 06:02:58 +0000 |
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committer | Roland McGrath <roland@gnu.org> | 1995-02-21 06:02:58 +0000 |
commit | 37f91d336d8d93b1416c121627ffe88e548b251d (patch) | |
tree | a97e2e6f7a060d404c43bbc9ae12f0685f35f1fd /csu/Makefile | |
parent | 41d43dbce0b5df750abf709a793195471b4c55e8 (diff) | |
download | glibc-37f91d336d8d93b1416c121627ffe88e548b251d.zip glibc-37f91d336d8d93b1416c121627ffe88e548b251d.tar.gz glibc-37f91d336d8d93b1416c121627ffe88e548b251d.tar.bz2 |
Tue Feb 21 00:10:50 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* csu/Makefile (crtstuff): New variable consolidates crti, crtn;
add crti_s, crtn_s.
(install-lib, extra-objs, generated-, omit-deps): Use that.
(initfini): New canned sequence, broken out of crt[in].s rule.
(crt[in].s rule): Use it.
(crt[in]_s.s): New rule.
* csu/initfini.c (GLOBAL): New macro; define it to empty if undefined.
(_init, _fini): Use GLOBAL as storage class.
Add self reference to avoid GCC optimizing out the functions.
* Makefile (headers): Remove $(stddef.h).
* Makeconfig (stddef.h): Variable removed; now require gcc version
>= 2.2.
* stddef.h: File removed.
Mon Feb 20 19:42:31 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* sysdeps/unix/bsd/ultrix4/mips/start.S: Remove `__environ'
definition.
* sysdeps/unix/bsd/osf1/alpha/start.S: Likewise.
* stdlib/strtod.c: Allow the string to start with a decimal point
without a leading zero.
Diffstat (limited to 'csu/Makefile')
-rw-r--r-- | csu/Makefile | 48 |
1 files changed, 33 insertions, 15 deletions
diff --git a/csu/Makefile b/csu/Makefile index 6de77b7..4943087 100644 --- a/csu/Makefile +++ b/csu/Makefile @@ -39,33 +39,51 @@ all: # Make this the default target; it will be defined in Rules. include ../Makeconfig ifneq ($(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 -install-lib += crti.o crtn.o -extra-objs += crti.o crtn.o -generated += crti.s crtn.s -omit-deps += crti crtn + +# These are the special initializer/finalizer files. They are always the +# first and last file in the link. crti.o ... crtn.o are used for normal +# linking; they define the global "functions" _init and _fini to run the +# .init and .fini sections. crti_s.o ... crtn_s.o are for making shared +# library objects; they put the prologue/epilogue code into the .init and +# .fini sections, but define no global symbols. +crtstuff = crti crtn crti_s crtn_s + +install-lib += $(crtstuff:=.o) +extra-objs += $(crtstuff:=.o) +generated += $(crtstuff:=.s) +omit-deps += $(crtstuff) # Compile initfini.c to assembly code, which contains embedded shell # commands that prodice crti.s-new and crtn.s-new when run. We need to # disable emission of .size directives and debugging information, since # they will get confused by the splitting of the output we do. -$(objpfx)cr%i.s $(objpfx)cr%n.s: initfini.c - -rm -f $(objpfx)crtcommon.tmp - (echo 'cat > crtcommon.tmp <<\EOF_common'; \ - $(CC) $< $(CPPFLAGS) $(CFLAGS) -finhibit-size-directive -g0 -S -o -; \ - echo 'EOF_common') | (cd $(@D); $(SHELL)) - cat $(objpfx)crtcommon.tmp >> $(objpfx)crti.s-new - cat $(objpfx)crtcommon.tmp >> $(objpfx)crtn.s-new - rm -f $(objpfx)crtcommon.tmp - mv -f $(objpfx)crti.s-new $(objpfx)crti.s - mv -f $(objpfx)crtn.s-new $(objpfx)crtn.s -endif +$(objpfx)cr%i.s $(objpfx)cr%n.s: initfini.c; $(initfini) +$(objpfx)cr%i_s.s $(objpfx)cr%n_s.s: initfini.c; $(initfini) + +define initfini +-rm -f $(objpfx)crtcommon.tmp +(echo 'cat > crtcommon.tmp <<\EOF_common'; \ + $(CC) $< $(CPPFLAGS) $(CFLAGS) \ + $(patsubst %,-DGLOBAL=static,$(filter %_s.s,$@)) \ + -finhibit-size-directive -g0 -S -o -; \ + echo 'EOF_common') | (cd $(@D); $(SHELL)) +cat $(objpfx)crtcommon.tmp >> $(objpfx)crti.s-new +cat $(objpfx)crtcommon.tmp >> $(objpfx)crtn.s-new +rm -f $(objpfx)crtcommon.tmp +mv -f $(objpfx)crti.s-new $(subst crtn,crti,$@) +mv -f $(objpfx)crtn.s-new $(subst crti,crtn,$@) +endef +endif include ../Rules |