merge

Makeconfig

@@ -360,6 +360,8 @@ whole-archive = -Wl,--whole-archive
 # Installed name of the startup code.
 # The ELF convention is that the startfile is called crt1.o
 start-installed-name = crt1.o
+# Similar to crt1.o, but without _IO_stdin_used.
+start-name-2.0 = crt1-2.0.o
 # On systems that do not need a special startfile for statically linked
 # binaries, simply set it to the normal name.
 ifndef static-start-installed-name
@@ -537,6 +539,25 @@ else  # build-static
 endif  # build-shared
 endif  # +link
 
+# Command for linking test programs with crt1.o from glibc 2.0.
++link-2.0-before-inputs = -nostdlib -nostartfiles $(no-pie-ldflag) \
+	      $(sysdep-LDFLAGS) $(LDFLAGS) $(LDFLAGS-$(@F)) \
+	      $(relro-LDFLAGS) $(hashstyle-LDFLAGS) \
+	      $(firstword $(CRT-$(@F)) $(csu-objpfx)$(start-name-2.0)) \
+	      $(+preinit) $(+prector)
++link-2.0-before-libc = -o $@ $(+link-2.0-before-inputs) \
+	      $(filter-out $(addprefix $(csu-objpfx),start.o \
+						     $(start-name-2.0))\
+			   $(+preinit) $(link-extra-libs) \
+			   $(common-objpfx)libc% $(+postinit),$^) \
+	      $(link-extra-libs)
++link-after-libc = $(+postctor) $(+postinit)
+define +link-2.0-tests
+$(CC) $(+link-2.0-before-libc) $(rtld-tests-LDFLAGS) $(link-libc-tests) \
+  $(+link-after-libc)
+$(call after-link,$@)
+endef
+
 # The pretty printer test programs need to be compiled without optimizations
 # so they won't confuse gdb.  We could use either the 'GCC optimize' pragma
 # or the 'optimize' function attribute to achieve this; however, at least on
@@ -586,10 +607,13 @@ link-libc-rpath-link = -Wl,-rpath-link=$(rpath-link)
 # before the expansion of LDLIBS-* variables).
 
 # Tests use -Wl,-rpath instead of -Wl,-rpath-link for
-# build-hardcoded-path-in-tests.
+# build-hardcoded-path-in-tests.  Add -Wl,--disable-new-dtags to force
+# DT_RPATH instead of DT_RUNPATH which only applies to DT_NEEDED entries
+# in the executable and doesn't applies to DT_NEEDED entries in shared
+# libraries which are loaded via DT_NEEDED entries in the executable.
 ifeq (yes,$(build-hardcoded-path-in-tests))
-link-libc-tests-rpath-link = $(link-libc-rpath)
-link-test-modules-rpath-link = $(link-libc-rpath)
+link-libc-tests-rpath-link = $(link-libc-rpath) -Wl,--disable-new-dtags
+link-test-modules-rpath-link = $(link-libc-rpath) -Wl,--disable-new-dtags
 else
 link-libc-tests-rpath-link = $(link-libc-rpath-link)
 link-test-modules-rpath-link =
@@ -705,13 +729,15 @@ endif
 +prectorS = `$(CC) $(sysdep-LDFLAGS) --print-file-name=crtbeginS.o`
 +postctorS = `$(CC) $(sysdep-LDFLAGS) --print-file-name=crtendS.o`
 # Variants of the two previous definitions for statically linking programs.
+static-prector = `$(CC) $(sysdep-LDFLAGS) --print-file-name=crtbeginT.o`
+static-postctor = `$(CC) $(sysdep-LDFLAGS) --print-file-name=crtend.o`
 ifeq (yes,$(enable-static-pie))
 # Static PIE must use PIE variants.
-+prectorT = $(+prectorS)
-+postctorT = $(+postctorS)
++prectorT = $(if $($(@F)-no-pie),$(static-prector),$(+prectorS))
++postctorT = $(if $($(@F)-no-pie),$(static-postctor),$(+postctorS))
 else
-+prectorT = `$(CC) $(sysdep-LDFLAGS) --print-file-name=crtbeginT.o`
-+postctorT = `$(CC) $(sysdep-LDFLAGS) --print-file-name=crtend.o`
++prectorT = $(static-prector)
++postctorT =$(static-postctor)
 endif
 csu-objpfx = $(common-objpfx)csu/
 elf-objpfx = $(common-objpfx)elf/
@@ -742,6 +768,11 @@ run-built-tests = yes
 endif
 endif
 
+# Whether to build the static math tests
+ifndef build-math-static-tests
+build-math-static-tests = no
+endif
+
 # Whether to stop immediately when a test fails.  Nonempty means to
 # stop, empty means not to stop.
 ifndef stop-on-test-failure
@@ -857,7 +888,7 @@ host-test-program-cmd = $(host-built-program-cmd)
 endif
 
 # Extra flags to pass to GCC.
-+gccwarn := -Wall -Wwrite-strings -Wundef
++gccwarn := -Wall -Wwrite-strings -Wundef $(cc-option-wimplicit-fallthrough)
 ifeq ($(enable-werror),yes)
 +gccwarn += -Werror
 endif
@@ -873,9 +904,10 @@ endif
 +math-flags = -frounding-math
 
 # Logically only "libnldbl", "nonlib" and "testsuite" should be using
-# -fno-math-errno. However due to GCC bug #88576, only "libm" can use
-# -fno-math-errno.
-+extra-math-flags = $(if $(filter libm,$(in-module)),-fno-math-errno,-fmath-errno)
+# -fno-math-errno. However due to GCC bug #88576, only "libm" and
+# "libmvec" can use -fno-math-errno.
++extra-math-flags = $(if $(filter libmvec libm,$(in-module)),\
+                      -fno-math-errno,-fmath-errno)
 
 # Use 64 bit time_t support for installed programs
 installed-modules = nonlib nscd ldconfig locale_programs \
@@ -979,6 +1011,12 @@ else
 +cflags += $(no-fortify-source)
 endif
 
+# Filter out LFS flags if compiler defines it by default.
++cflags += $(no-file-offset-bits-source)
+
+# Filter out 64 bit time_t flags if compiler defines it by default.
++cflags += $(no-time-bits-source)
+
 # Each sysdeps directory can contain header files that both will be
 # used to compile and will be installed.  Each can also contain an
 # include/ subdirectory, whose header files will be used to compile
@@ -1233,7 +1271,7 @@ $(common-objpfx)dl-tunable-list.stmp: \
 		$(..)elf/dl-tunables.list \
 		$(wildcard $(subdirs:%=$(..)%/dl-tunables.list)) \
 		$(wildcard $(sysdirs:%=%/dl-tunables.list))
-	$(AWK) -f $^ > ${@:stmp=T}
+	LC_ALL=C $(AWK) -f $^ > ${@:stmp=T}
 	$(move-if-change) ${@:stmp=T} ${@:stmp=h}
 	touch $@
 

Makefile

@@ -577,6 +577,14 @@ $(objpfx)lint-makefiles.out: scripts/lint-makefiles.sh
 	$(SHELL) $< "$(PYTHON)" `pwd` > $@ ; \
 	$(evaluate-test)
 
+# Link libc.a as a whole to verify that it does not contain multiple
+# definitions of any symbols.
+tests-special += $(objpfx)link-static-libc.out
+$(objpfx)link-static-libc.out:
+	$(LINK.o) $(whole-archive) -nostdlib -nostartfiles -r \
+	  $(objpfx)libc.a -o /dev/null > $@ 2>&1; \
+	$(evaluate-test)
+
 # Print test summary for tests in $1 .sum file;
 # $2 is optional test identifier.
 # Fail if there are unexpected failures in the test results.
@@ -737,7 +745,7 @@ endif
 INSTALL: manual/install-plain.texi manual/macros.texi \
 	 $(common-objpfx)manual/pkgvers.texi manual/install.texi
 	makeinfo --no-validate --plaintext --no-number-sections \
-		 -I$(common-objpfx)manual $< -o $@-tmp
+		 --disable-encoding -I$(common-objpfx)manual $< -o $@-tmp
 	$(AWK) 'NF == 0 { ++n; next } \
 		NF != 0 { while (n-- > 0) print ""; n = 0; print }' \
 	  < $@-tmp > $@-tmp2

Makefile.help

@@ -33,6 +33,10 @@ test
 	Note that this will rebuild the test if needed, but will not
 	rebuild what "make all" would have rebuilt.
 
+build-math-static-tests
+	Enable extra math tests for static linking.  Use like this:
+		make test t=math/test-float-exp10-static build-math-static-tests=yes
+
 --
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