diff options
Diffstat (limited to 'Makeconfig')
| -rw-r--r-- | Makeconfig | 76 |
1 files changed, 59 insertions, 17 deletions
diff --git a/Makeconfig b/Makeconfig index a7858607b0..e9d8da9d60 100644 --- a/Makeconfig +++ b/Makeconfig @@ -416,6 +416,11 @@ $(+link-pie-before-libc) $(rtld-tests-LDFLAGS) $(link-libc-tests) \ $(+link-pie-after-libc) $(call after-link,$@) endef +define +link-pie-printers-tests +$(+link-pie-before-libc) $(built-rtld-LDFLAGS) $(link-libc-printers-tests) \ + $(+link-pie-after-libc) +$(call after-link,$@) +endef endif # Command for statically linking programs with the C library. ifndef +link-static @@ -445,7 +450,8 @@ ifeq (yes,$(build-pie-default)) no-pie-ldflag = -no-pie +link = $(+link-pie) +link-tests = $(+link-pie-tests) -else ++link-printers-tests = $(+link-pie-printers-tests) +else # not build-pie-default +link-before-libc = $(CC) -nostdlib -nostartfiles -o $@ \ $(sysdep-LDFLAGS) $(LDFLAGS) $(LDFLAGS-$(@F)) \ $(combreloc-LDFLAGS) $(relro-LDFLAGS) $(hashstyle-LDFLAGS) \ @@ -466,51 +472,87 @@ $(+link-before-libc) $(rtld-tests-LDFLAGS) $(link-libc-tests) \ $(+link-after-libc) $(call after-link,$@) endef -endif -else +define +link-printers-tests +$(+link-before-libc) $(built-rtld-LDFLAGS) $(link-libc-printers-tests) \ + $(+link-after-libc) +$(call after-link,$@) +endef +endif # build-pie-default +else # build-static +link = $(+link-static) +link-tests = $(+link-static-tests) -endif -endif ++link-printers-tests = $(+link-static-tests) +endif # build-shared +endif # +link + +# 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 +# ARM, gcc always produces different debugging symbols when invoked with +# a -O greater than 0 than when invoked with -O0, regardless of anything else +# we're using to suppress optimizations. Therefore, we need to explicitly pass +# -O0 to it through CFLAGS. +# Additionally, the build system will try to -include $(common-objpfx)/config.h +# when compiling the tests, which will throw an error if some special macros +# (such as __OPTIMIZE__ and IS_IN_build) aren't defined. To avoid this, we +# tell gcc to define IS_IN_build. +CFLAGS-printers-tests := -O0 -ggdb3 -DIS_IN_build + ifeq (yes,$(build-shared)) +# These indicate whether to link using the built ld.so or the installed one. +installed-rtld-LDFLAGS = -Wl,-dynamic-linker=$(rtlddir)/$(rtld-installed-name) +built-rtld-LDFLAGS = -Wl,-dynamic-linker=$(elf-objpfx)ld.so + ifndef rtld-LDFLAGS -rtld-LDFLAGS = -Wl,-dynamic-linker=$(rtlddir)/$(rtld-installed-name) +rtld-LDFLAGS = $(installed-rtld-LDFLAGS) endif + ifndef rtld-tests-LDFLAGS ifeq (yes,$(build-hardcoded-path-in-tests)) -rtld-tests-LDFLAGS = -Wl,-dynamic-linker=$(elf-objpfx)ld.so +rtld-tests-LDFLAGS = $(built-rtld-LDFLAGS) else -rtld-tests-LDFLAGS = $(rtld-LDFLAGS) -endif -endif -endif +rtld-tests-LDFLAGS = $(installed-rtld-LDFLAGS) +endif # build-hardcoded-path-in-tests +endif # rtld-tests-LDFLAGS + +endif # build-shared + ifndef link-libc ifeq (yes,$(build-shared)) # We need the versioned name of libc.so in the deps of $(others) et al # so that the symlink to libc.so is created before anything tries to # run the linked programs. +link-libc-rpath = -Wl,-rpath=$(rpath-link) link-libc-rpath-link = -Wl,-rpath-link=$(rpath-link) + ifeq (yes,$(build-hardcoded-path-in-tests)) -link-libc-tests-rpath-link = -Wl,-rpath=$(rpath-link) +link-libc-tests-rpath-link = $(link-libc-rpath) else link-libc-tests-rpath-link = $(link-libc-rpath-link) -endif +endif # build-hardcoded-path-in-tests + link-libc-before-gnulib = $(common-objpfx)libc.so$(libc.so-version) \ $(common-objpfx)$(patsubst %,$(libtype.oS),c) \ $(as-needed) $(elf-objpfx)ld.so \ $(no-as-needed) link-libc = $(link-libc-rpath-link) $(link-libc-before-gnulib) $(gnulib) + +link-libc-tests-after-rpath-link = $(link-libc-before-gnulib) $(gnulib-tests) link-libc-tests = $(link-libc-tests-rpath-link) \ - $(link-libc-before-gnulib) $(gnulib-tests) + $(link-libc-tests-after-rpath-link) +# Pretty printer test programs always require rpath instead of rpath-link. +link-libc-printers-tests = $(link-libc-rpath) \ + $(link-libc-tests-after-rpath-link) + # This is how to find at build-time things that will be installed there. rpath-dirs = math elf dlfcn nss nis rt resolv crypt mathvec rpath-link = \ $(common-objdir):$(subst $(empty) ,:,$(patsubst ../$(subdir),.,$(rpath-dirs:%=$(common-objpfx)%))) -else +else # build-static link-libc = $(common-objpfx)libc.a $(otherlibs) $(gnulib) $(common-objpfx)libc.a $(gnulib) link-libc-tests = $(common-objpfx)libc.a $(otherlibs) $(gnulib-tests) $(common-objpfx)libc.a $(gnulib-tests) -endif -endif +endif # build-shared +endif # link-libc # Differences in the linkers on the various platforms. LDFLAGS-rpath-ORIGIN = -Wl,-rpath,'$$ORIGIN' |