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base/SOURCES/glibc-rh1256317-17.patch

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commit 9cd4747089e6b0d6ed6b2b6c75798912489c7bab
Author: Siddhesh Poyarekar <siddhesh@redhat.com>
Date: Wed Nov 19 12:13:54 2014 +0530
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.
Index: glibc-2.17-c758a686/Makeconfig
===================================================================
--- glibc-2.17-c758a686.orig/Makeconfig
+++ glibc-2.17-c758a686/Makeconfig
@@ -730,6 +730,11 @@ 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
@@ -737,7 +742,7 @@ libio-include = -I$(..)libio
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)))
Index: glibc-2.17-c758a686/Makerules
===================================================================
--- glibc-2.17-c758a686.orig/Makerules
+++ glibc-2.17-c758a686/Makerules
@@ -1151,7 +1151,7 @@ xcheck: xtests
all-nonlib = $(strip $(tests) $(xtests) $(test-srcs) $(test-extras) $(others))
ifneq (,$(all-nonlib))
-cpp-srcs-left = $(all-nonlib:=.c) $(all-nonlib:=.cc)
+cpp-srcs-left = $(all-nonlib)
lib := nonlib
include $(patsubst %,$(..)cppflags-iterator.mk,$(cpp-srcs-left))
endif
Index: glibc-2.17-c758a686/elf/Makefile
===================================================================
--- glibc-2.17-c758a686.orig/elf/Makefile
+++ glibc-2.17-c758a686/elf/Makefile
@@ -436,7 +436,8 @@ $(objpfx)pldd: $(pldd-modules:%=$(objpfx
SYSCONF-FLAGS := -D'SYSCONFDIR="$(sysconfdir)"'
CFLAGS-ldconfig.c = $(SYSCONF-FLAGS) -D'LIBDIR="$(libdir)"' \
- -D'SLIBDIR="$(slibdir)"' -DIS_IN_ldconfig=1
+ -D'SLIBDIR="$(slibdir)"' -DIS_IN_ldconfig=1 -DNOT_IN_libc=1
+libof-ldconfig = ldconfig
CFLAGS-dl-cache.c = $(SYSCONF-FLAGS)
CFLAGS-cache.c = $(SYSCONF-FLAGS)
CFLAGS-rtld.c = $(SYSCONF-FLAGS)
@@ -454,6 +455,10 @@ CFLAGS-.op += -fno-tree-loop-distribute-
CFLAGS-.ob += -fno-tree-loop-distribute-patterns
CFLAGS-.oS += -fno-tree-loop-distribute-patterns
+cpp-srcs-left := $(all-rtld-routines:=.os)
+lib := rtld
+include $(patsubst %,$(..)cppflags-iterator.mk,$(cpp-srcs-left))
+
test-modules = $(addprefix $(objpfx),$(addsuffix .so,$(strip $(modules-names))))
generated += $(addsuffix .so,$(strip $(modules-names)))
Index: glibc-2.17-c758a686/elf/rtld-Rules
===================================================================
--- glibc-2.17-c758a686.orig/elf/rtld-Rules
+++ glibc-2.17-c758a686/elf/rtld-Rules
@@ -128,6 +128,11 @@ ifdef rtld-depfiles
-include $(rtld-depfiles)
endif
+# Set libof-* for each routine.
+cpp-srcs-left := $(rtld-modules:%.os=%)
+lib := rtld
+include $(patsubst %,$(..)cppflags-iterator.mk,$(cpp-srcs-left))
+
# This here is the whole point of all the shenanigans.
rtld-CPPFLAGS := -DNOT_IN_libc=1 -DIS_IN_rtld=1 -DIN_LIB=rtld
Index: glibc-2.17-c758a686/extra-modules.mk
===================================================================
--- glibc-2.17-c758a686.orig/extra-modules.mk
+++ glibc-2.17-c758a686/extra-modules.mk
@@ -6,4 +6,5 @@
module := $(firstword $(extra-modules-left))
extra-modules-left := $(filter-out $(module),$(extra-modules-left))
+libof-$(notdir $(module)) := extramodules
CPPFLAGS-$(module).c += -DNOT_IN_libc
Index: glibc-2.17-c758a686/iconv/Makefile
===================================================================
--- glibc-2.17-c758a686.orig/iconv/Makefile
+++ glibc-2.17-c758a686/iconv/Makefile
@@ -53,11 +53,12 @@ CFLAGS-gconv_cache.c += -DGCONV_DIR='"$(
CFLAGS-gconv_conf.c = -DGCONV_PATH='"$(gconvdir)"'
CFLAGS-iconvconfig.c = -DGCONV_PATH='"$(gconvdir)"' -DGCONV_DIR='"$(gconvdir)"'
-CPPFLAGS-iconv_charmap = -DNOT_IN_libc
-CPPFLAGS-linereader = -DNOT_IN_libc
-CPPFLAGS-strtab = -DNOT_IN_libc
-CPPFLAGS-charmap = -DNOT_IN_libc
-CPPFLAGS-charmap-dir = -DNOT_IN_libc
+CPPFLAGS-iconvprogs = -DNOT_IN_libc
+
+# Set libof-* for each routine.
+cpp-srcs-left := $(iconv_prog-modules) $(iconvconfig-modules)
+lib := iconvprogs
+include $(patsubst %,$(..)cppflags-iterator.mk,$(cpp-srcs-left))
include ../Rules
Index: glibc-2.17-c758a686/iconvdata/Makefile
===================================================================
--- glibc-2.17-c758a686.orig/iconvdata/Makefile
+++ glibc-2.17-c758a686/iconvdata/Makefile
@@ -212,6 +212,7 @@ $(objpfx)iconv-rules: Makefile
$(AWK) 'NR == 1 { \
for (i = 1; i <= NF; i++) { \
printf "%s-routines := %s\n", $$i, tolower($$i); \
+ printf "libof-%s := iconvdata\n", tolower($$i); \
printf "%s-map := gconv.map\n", $$i; \
} \
}; \
@@ -265,6 +266,11 @@ endif # build-shared = yes
include ../Rules
+# Set libof-* for each routine.
+cpp-srcs-left := $(modules) $(generated-modules)
+lib := iconvdata
+include $(patsubst %,$(..)cppflags-iterator.mk,$(cpp-srcs-left))
+
ifeq ($(run-built-tests),yes)
ifeq (yes,$(build-shared))
tests: $(objpfx)iconv-test.out $(objpfx)tst-tables.out
Index: glibc-2.17-c758a686/include/libc-modules.h
===================================================================
--- /dev/null
+++ glibc-2.17-c758a686/include/libc-modules.h
@@ -0,0 +1,41 @@
+/* Valid values for the IN_MODULE macro, which is defined for each source file
+ during compilation to indicate which module it is to be built into.
+
+ TODO: This file should eventually be auto-generated. */
+#define MODULE_libc 1
+#define MODULE_libpthread 2
+#define MODULE_rtld 3
+#define MODULE_libdl 4
+#define MODULE_libm 5
+#define MODULE_iconvprogs 6
+#define MODULE_iconvdata 7
+#define MODULE_lddlibc4 8
+#define MODULE_locale_programs 9
+#define MODULE_memusagestat 10
+#define MODULE_libutil 12
+#define MODULE_libBrokenLocale 13
+#define MODULE_libmemusage 15
+#define MODULE_libresolv 16
+#define MODULE_libnss_db 17
+#define MODULE_libnss_files 18
+#define MODULE_libnss_dns 19
+#define MODULE_libnss_compat 20
+#define MODULE_libnss_hesiod 21
+#define MODULE_libnss_nis 22
+#define MODULE_libnss_nisplus 23
+#define MODULE_libanl 24
+#define MODULE_librt 25
+#define MODULE_libSegFault 26
+#define MODULE_libthread_db 27
+#define MODULE_libcidn 28
+#define MODULE_libcrypt 29
+#define MODULE_libnsl 30
+#define MODULE_libpcprofile 31
+#define MODULE_librpcsvc 32
+#define MODULE_nscd 33
+#define MODULE_ldconfig 34
+#define MODULE_libnldbl 35
+
+/* Catch-all for test modules and other binaries. */
+#define MODULE_nonlib 98
+#define MODULE_extramodules 99
Index: glibc-2.17-c758a686/include/libc-symbols.h
===================================================================
--- glibc-2.17-c758a686.orig/include/libc-symbols.h
+++ glibc-2.17-c758a686/include/libc-symbols.h
@@ -20,6 +20,11 @@
#ifndef _LIBC_SYMBOLS_H
#define _LIBC_SYMBOLS_H 1
+/* Pull in definitions for the MODULE_* macros. */
+#include <libc-modules.h>
+
+#define IS_IN(lib) (IN_MODULE == MODULE_##lib)
+
/* This file's macros are included implicitly in the compilation of every
file in the C library by -imacros.
@@ -450,7 +455,7 @@ for linking")
If the function should be internal to multiple objects, say ld.so and
libc.so, the best way is to use:
- #if !defined NOT_IN_libc || defined IS_IN_rtld
+ #if IS_IN (libc) || IS_IN (rtld)
hidden_proto (foo)
#endif
@@ -561,7 +566,7 @@ for linking")
# define libc_hidden_data_ver(local, name)
#endif
-#ifdef IS_IN_rtld
+#if IS_IN (rtld)
# define rtld_hidden_proto(name, attrs...) hidden_proto (name, ##attrs)
# define rtld_hidden_def(name) hidden_def (name)
# define rtld_hidden_weak(name) hidden_weak (name)
@@ -579,7 +584,7 @@ for linking")
# define rtld_hidden_data_ver(local, name)
#endif
-#ifdef IS_IN_libm
+#if IS_IN (libm)
# define libm_hidden_proto(name, attrs...) hidden_proto (name, ##attrs)
# define libm_hidden_def(name) hidden_def (name)
# define libm_hidden_weak(name) hidden_weak (name)
@@ -597,7 +602,7 @@ for linking")
# define libm_hidden_data_ver(local, name)
#endif
-#ifdef IS_IN_libresolv
+#if IS_IN (libresolv)
# define libresolv_hidden_proto(name, attrs...) hidden_proto (name, ##attrs)
# define libresolv_hidden_def(name) hidden_def (name)
# define libresolv_hidden_weak(name) hidden_weak (name)
@@ -615,7 +620,7 @@ for linking")
# define libresolv_hidden_data_ver(local, name)
#endif
-#ifdef IS_IN_librt
+#if IS_IN (librt)
# define librt_hidden_proto(name, attrs...) hidden_proto (name, ##attrs)
# define librt_hidden_def(name) hidden_def (name)
# define librt_hidden_weak(name) hidden_weak (name)
@@ -633,7 +638,7 @@ for linking")
# define librt_hidden_data_ver(local, name)
#endif
-#ifdef IS_IN_libdl
+#if IS_IN (libdl)
# define libdl_hidden_proto(name, attrs...) hidden_proto (name, ##attrs)
# define libdl_hidden_def(name) hidden_def (name)
# define libdl_hidden_weak(name) hidden_weak (name)
@@ -651,7 +656,7 @@ for linking")
# define libdl_hidden_data_ver(local, name)
#endif
-#ifdef IS_IN_libnss_files
+#if IS_IN (libnss_files)
# define libnss_files_hidden_proto(name, attrs...) hidden_proto (name, ##attrs)
# define libnss_files_hidden_def(name) hidden_def (name)
# define libnss_files_hidden_weak(name) hidden_weak (name)
@@ -669,7 +674,7 @@ for linking")
# define libnss_files_hidden_data_ver(local, name)
#endif
-#ifdef IS_IN_libnsl
+#if IS_IN (libnsl)
# define libnsl_hidden_proto(name, attrs...) hidden_proto (name, ##attrs)
# define libnsl_hidden_def(name) hidden_def (name)
# define libnsl_hidden_weak(name) hidden_weak (name)
@@ -687,7 +692,7 @@ for linking")
# define libnsl_hidden_data_ver(local, name)
#endif
-#ifdef IS_IN_libnss_nisplus
+#if IS_IN (libnss_nisplus)
# define libnss_nisplus_hidden_proto(name, attrs...) hidden_proto (name, ##attrs)
# define libnss_nisplus_hidden_def(name) hidden_def (name)
# define libnss_nisplus_hidden_weak(name) hidden_weak (name)
@@ -713,7 +718,7 @@ for linking")
# define HIDDEN_BUILTIN_JUMPTARGET(name) HIDDEN_JUMPTARGET(name)
#endif
-#ifdef IS_IN_libutil
+#if IS_IN (libutil)
# define libutil_hidden_proto(name, attrs...) hidden_proto (name, ##attrs)
# define libutil_hidden_def(name) hidden_def (name)
# define libutil_hidden_weak(name) hidden_weak (name)
Index: glibc-2.17-c758a686/locale/Makefile
===================================================================
--- glibc-2.17-c758a686.orig/locale/Makefile
+++ glibc-2.17-c758a686/locale/Makefile
@@ -95,8 +95,8 @@ CFLAGS-locfile.c = -Wno-write-strings -W
CFLAGS-charmap-dir.c = -Wno-write-strings
# This makes sure -DNOT_IN_libc et al are passed for all these modules.
-cpp-srcs-left := $(addsuffix .c,$(localedef-modules) $(localedef-aux) \
- $(locale-modules) $(lib-modules))
+cpp-srcs-left := $(localedef-modules) $(localedef-aux) $(locale-modules) \
+ $(lib-modules)
lib := locale-programs
include $(patsubst %,$(..)cppflags-iterator.mk,$(cpp-srcs-left))
Index: glibc-2.17-c758a686/malloc/Makefile
===================================================================
--- glibc-2.17-c758a686.orig/malloc/Makefile
+++ glibc-2.17-c758a686/malloc/Makefile
@@ -97,6 +97,11 @@ endif
do-memusagestat: $(objpfx)memusagestat
memusagestat-modules = memusagestat
+
+cpp-srcs-left := $(memusagestat-modules)
+lib := memusagestat
+include $(patsubst %,$(..)cppflags-iterator.mk,$(cpp-srcs-left))
+
$(objpfx)memusagestat: $(memusagestat-modules:%=$(objpfx)%.o)
$(LINK.o) -o $@ $^ $(libgd-LDFLAGS) -lgd -lpng -lz -lm
Index: glibc-2.17-c758a686/nscd/Makefile
===================================================================
--- glibc-2.17-c758a686.orig/nscd/Makefile
+++ glibc-2.17-c758a686/nscd/Makefile
@@ -79,26 +79,25 @@ CFLAGS-nscd_gethst_r.c = -fexceptions
CFLAGS-nscd_getai.c = -fexceptions
CFLAGS-nscd_initgroups.c = -fexceptions
-CPPFLAGS-nonlib += -DIS_IN_nscd=1 -D_FORTIFY_SOURCE=2
+CPPFLAGS-nscd += -DIS_IN_nscd=1 -D_FORTIFY_SOURCE=2 -DNOT_IN_libc=1
ifeq (yesyes,$(have-fpie)$(build-shared))
-CFLAGS-nonlib += $(pie-ccflag)
+CFLAGS-nscd += $(pie-ccflag)
endif
ifeq (yes,$(have-ssp))
-CFLAGS-nonlib += -fstack-protector
+CFLAGS-nscd += -fstack-protector
endif
ifeq (yes,$(have-ssp-strong))
-CFLAGS-nonlib += -fstack-protector-strong
+CFLAGS-nscd += -fstack-protector-strong
endif
ifeq (yesyes,$(have-fpie)$(build-shared))
LDFLAGS-nscd = -Wl,-z,now
endif
-# This makes sure CPPFLAGS-nonlib and CFLAGS-nonlib are passed
-# for all these modules.
-cpp-srcs-left := $(nscd-modules:=.c)
-lib := nonlib
+# Set libof-nscd.
+cpp-srcs-left := $(nscd-modules)
+lib := nscd
include $(patsubst %,$(..)cppflags-iterator.mk,$(cpp-srcs-left))
$(objpfx)nscd: $(nscd-modules:%=$(objpfx)%.o)
Index: glibc-2.17-c758a686/nss/Makefile
===================================================================
--- glibc-2.17-c758a686.orig/nss/Makefile
+++ glibc-2.17-c758a686/nss/Makefile
@@ -108,7 +108,8 @@ $(objpfx)makedb: $(makedb-modules:%=$(ob
$(inst_vardbdir)/Makefile: db-Makefile $(+force)
$(do-install)
-CFLAGS-nss_test1.c = -DNOT_IN_libc=1
+libof-nss_test1 = extramodules
+CPPFLAGS-nss_test1 = -DNOT_IN_libc=1
$(objpfx)/libnss_test1.so: $(objpfx)nss_test1.os $(common-objpfx)libc.so \
$(common-objpfx)libc_nonshared.a
$(build-module)
Index: glibc-2.17-c758a686/stdlib/Makefile
===================================================================
--- glibc-2.17-c758a686.orig/stdlib/Makefile
+++ glibc-2.17-c758a686/stdlib/Makefile
@@ -138,6 +138,7 @@ LDFLAGS-tst-putenv = $(no-as-needed)
$(objpfx)tst-putenvmod.so: $(objpfx)tst-putenvmod.os
$(build-module)
+libof-tst-putenvmod = extramodules
CFLAGS-tst-putenvmod.c = -DNOT_IN_libc=1
ifeq ($(build-shared),yes)
Index: glibc-2.17-c758a686/sysdeps/gnu/Makefile
===================================================================
--- glibc-2.17-c758a686.orig/sysdeps/gnu/Makefile
+++ glibc-2.17-c758a686/sysdeps/gnu/Makefile
@@ -30,6 +30,8 @@ ifeq ($(subdir),stdio-common)
errlist-c = $(firstword $(wildcard $(addsuffix /errlist.c,$(sysdirs) .)))
+libof-errlist-compat = extramodules
+
ifeq ($(versioning),yes)
$(objpfx)errlist-compat.c: $(errlist-c) $(..)sysdeps/gnu/errlist-compat.awk \
$(common-objpfx)Versions.v.i $(before-compile)
Index: glibc-2.17-c758a686/sysdeps/s390/s390-64/Makefile
===================================================================
--- glibc-2.17-c758a686.orig/sysdeps/s390/s390-64/Makefile
+++ glibc-2.17-c758a686/sysdeps/s390/s390-64/Makefile
@@ -28,6 +28,10 @@ s390x-iconv-modules = ISO-8859-1_CP037_Z
extra-modules-left += $(s390x-iconv-modules)
include extra-module.mk
+cpp-srcs-left := $(foreach mod,$(s390x-iconv-modules),$($(mod)-routines))
+lib := iconvdata
+include $(patsubst %,$(..)cppflags-iterator.mk,$(cpp-srcs-left))
+
extra-objs += $(addsuffix .so, $(s390x-iconv-modules))
install-others += $(patsubst %, $(inst_gconvdir)/%.so, $(s390x-iconv-modules))
Index: glibc-2.17-c758a686/sysdeps/unix/sysv/linux/Makefile
===================================================================
--- glibc-2.17-c758a686.orig/sysdeps/unix/sysv/linux/Makefile
+++ glibc-2.17-c758a686/sysdeps/unix/sysv/linux/Makefile
@@ -159,6 +159,7 @@ ifeq ($(subdir),elf)
sysdep-rtld-routines += dl-brk dl-sbrk dl-getcwd dl-openat64 dl-opendir \
dl-fxstatat64
+libof-lddlibc4 = lddlibc4
CPPFLAGS-lddlibc4 += -DNOT_IN_libc
endif