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| author | Siddhesh Poyarekar <siddhesh@redhat.com> | 2014-11-19 12:13:54 +0530 |
|---|---|---|
| committer | Siddhesh Poyarekar <siddhesh@redhat.com> | 2014-11-19 12:13:54 +0530 |
| commit | 9cd4747089e6b0d6ed6b2b6c75798912489c7bab (patch) | |
| tree | b8804d1fcbe700d16978f82cb76aa8a5bbcf8544 /Makeconfig | |
| parent | d71035bd9a3a1dc5077ab8d978398f2f960d3555 (diff) | |
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Add new macro IN_MODULE to identify module in which source is built
The current scheme to identify which module a translation unit is
built in depends on defining multiple macros IS_IN_* and also defining
NOT_IN_libc if we're building a non-libc module. In addition, there
is an IN_LIB macro that does effectively the same thing, but for
different modules (notably the systemtap probes). This macro scheme
unifies both ideas to use just one macro IN_MODULE and assign it a
value depending on the module it is being built into. If the module
is not defined, it defaults to MODULE_libc.
Patches that follow will replace uses of IS_IN_* variables with the
IS_IN() macro. libc-symbols.h has been converted already to give an
example of how such a transition will look.
Verified that there are no relevant binary changes. One source change
that will crop up repeatedly is that of nscd_stat, since it uses the
build timestamp as a constant in its logic.
* Makeconfig (in-module): Get value of libof set for the
translation unit.
(CPPFLAGS): Use $(in-module).
* Makerules: Don't suffix routine names for nonlib.
* include/libc-modules.h: New file.
* include/libc-symbols.h: Include libc-modules.h
(IS_IN): New macro to replace IS_IN_* macros.
* elf/Makefile: Set libof-* for each routine.
* elf/rtld-Rules: Likewise.
* extra-modules.mk: Likewise.
* iconv/Makefile: Likewise.
* iconvdata/Makefile: Likewise.
* locale/Makefile: Likewise.
* malloc/Makefile: Likewise.
* nss/Makefile: Likewise.
* sysdeps/gnu/Makefile: Likewise.
* sysdeps/ieee754/ldbl-opt/Makefile: Likewise.
* sysdeps/unix/sysv/linux/Makefile: Likewise.
* sysdeps/s390/s390-64/Makefile: Likewise.
* nscd/Makefile: Set libof-* for each routine. Set CFLAGS and
CPPFLAGS for nscd instead of nonlib.
Diffstat (limited to 'Makeconfig')
| -rw-r--r-- | Makeconfig | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/Makeconfig b/Makeconfig index 24a3b82c78..9f88f7ca5b 100644 --- a/Makeconfig +++ b/Makeconfig @@ -813,6 +813,11 @@ endif # $(+cflags) == "" # of many little headers in the include directory. libio-include = -I$(..)libio +in-module = $(subst -,_,$(firstword $(libof-$(basename $(@F))) \ + $(libof-$(<F)) \ + $(libof-$(@F)) \ + libc)) + # These are the variables that the implicit compilation rules use. # Note that we can't use -std=* in CPPFLAGS, because it overrides # the implicit -lang-asm and breaks cpp behavior for .S files--notably @@ -821,7 +826,7 @@ CPPFLAGS = $(config-extra-cppflags) $(CPPUNDEFS) $(CPPFLAGS-config) \ $($(subdir)-CPPFLAGS) \ $(+includes) $(defines) \ -include $(..)include/libc-symbols.h $(sysdep-CPPFLAGS) \ - $(CPPFLAGS-$(suffix $@)) \ + $(CPPFLAGS-$(suffix $@)) -DIN_MODULE=MODULE_$(in-module) \ $(foreach lib,$(libof-$(basename $(@F))) \ $(libof-$(<F)) $(libof-$(@F)),$(CPPFLAGS-$(lib))) \ $(CPPFLAGS-$(<F)) $(CPPFLAGS-$(@F)) $(CPPFLAGS-$(basename $(@F))) |