Fix BZ #18043 comment # 19: don't call undefined setenv(..., NULL, 1).

[thirdparty/glibc.git] / Makeconfig

diff --git a/Makeconfig b/Makeconfig
index 751e9ffa32149ba8854cc6fb7404a5902305dc37..4e336a4ed8537d759847a02312fdb123f7f02868 100644 (file)
--- a/Makeconfig
+++ b/Makeconfig
@@ -387,6 +387,14 @@ LDFLAGS.so += $(hashstyle-LDFLAGS)
 LDFLAGS-rtld += $(hashstyle-LDFLAGS)
 endif
 
+# Command to run after every final link (executable or shared object).
+# This is invoked with $(call after-link,...), so it should operate on
+# the file $1.  This can be set to do some sort of post-processing on
+# binaries, or to perform some sort of static sanity check.
+ifndef after-link
+after-link =
+endif
+
 # Command for linking PIE programs with the C library.
 ifndef +link-pie
 +link-pie-before-libc = $(CC) -pie -Wl,-O1 -nostdlib -nostartfiles -o $@ \
@@ -400,10 +408,15 @@ ifndef +link-pie
                          $(common-objpfx)libc% $(+postinit),$^) \
             $(link-extra-libs)
 +link-pie-after-libc = $(+postctorS) $(+postinit)
-+link-pie = $(+link-pie-before-libc) $(rtld-LDFLAGS) $(link-libc) \
-           $(+link-pie-after-libc)
-+link-pie-tests = $(+link-pie-before-libc) $(rtld-tests-LDFLAGS) \
-                 $(link-libc-tests) $(+link-pie-after-libc)
+define +link-pie
+$(+link-pie-before-libc) $(rtld-LDFLAGS) $(link-libc) $(+link-pie-after-libc)
+$(call after-link,$@)
+endef
+define +link-pie-tests
+$(+link-pie-before-libc) $(rtld-tests-LDFLAGS) $(link-libc-tests) \
+                        $(+link-pie-after-libc)
+$(call after-link,$@)
+endef
 endif
 # Command for statically linking programs with the C library.
 ifndef +link-static
@@ -417,10 +430,14 @@ ifndef +link-static
                           $(common-objpfx)libc% $(+postinit),$^) \
              $(link-extra-libs-static)
 +link-static-after-libc = $(+postctorT) $(+postinit)
-+link-static = $(+link-static-before-libc) $(link-libc-static) \
-              $(+link-static-after-libc)
-+link-static-tests = $(+link-static-before-libc) $(link-libc-static-tests) \
-                    $(+link-static-after-libc)
+define +link-static
+$(+link-static-before-libc) $(link-libc-static) $(+link-static-after-libc)
+$(call after-link,$@)
+endef
+define +link-static-tests
+$(+link-static-before-libc) $(link-libc-static-tests) $(+link-static-after-libc)
+$(call after-link,$@)
+endef
 endif
 # Commands for linking programs with the C library.
 ifndef +link
@@ -436,10 +453,15 @@ ifeq (yes,$(build-shared))
                           $(common-objpfx)libc% $(+postinit),$^) \
              $(link-extra-libs)
 +link-after-libc = $(+postctor) $(+postinit)
-+link = $(+link-before-libc) $(rtld-LDFLAGS) $(link-libc) \
-       $(+link-after-libc)
-+link-tests = $(+link-before-libc) $(rtld-tests-LDFLAGS) \
-             $(link-libc-tests) $(+link-after-libc)
+define +link
+$(+link-before-libc) $(rtld-LDFLAGS) $(link-libc) $(+link-after-libc)
+$(call after-link,$@)
+endef
+define +link-tests
+$(+link-before-libc) $(rtld-tests-LDFLAGS) $(link-libc-tests) \
+                    $(+link-after-libc)
+$(call after-link,$@)
+endef
 else
 +link = $(+link-static)
 +link-tests = $(+link-static-tests)
@@ -589,6 +611,11 @@ endif
 ifndef test-wrapper-env
 test-wrapper-env = $(test-wrapper) env
 endif
+# Likewise, but the program's environment will be empty except for any
+# explicit <variable>=<value> assignments preceding the program name.
+ifndef test-wrapper-env-only
+test-wrapper-env-only = $(test-wrapper) env -i
+endif
 
 # Whether to run test programs built for the library's host system.
 ifndef run-built-tests
@@ -926,7 +953,7 @@ endif
 ifndef ASFLAGS
 ASFLAGS := $(filter -g% -fdebug-prefix-map=%,$(CFLAGS))
 endif
-ASFLAGS += $(ASFLAGS-config) $(asflags-cpu)
+ASFLAGS += -Werror=undef $(ASFLAGS-config) $(asflags-cpu)
 
 ifndef BUILD_CC
 BUILD_CC = $(CC)