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Prepare for restoration of .interp section in libpthread.so

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Make runtime-linker.h available outside $(elf-objpfx) by moving
the file to $(common-objpfx) and the rules for it to Makerules.

Tested for x86_64 and x86 (testsuite, and that no compiled code
changed by the patch).

* Makeconfig (+interp): Remove unused variable.
* elf/Makefile ($(objpfx)interp.os): Define for [$(build-shared) = yes]
only.  Depend on $(common-objpfx)runtime-linker.h instead of
$(elf-objpfx)runtime-linker.h.
($(elf-objpfx)runtime-linker.h): Rename to
$(common-objpfx)runtime-linker.h and move ...
* Makerules [$(build-shared) = yes]: ... here.
* elf/interp.c: Include <runtime-linker.h> instead of
<elf/runtime-linker.h>.
This commit is contained in:
Dmitry V. Levin 2015-06-05 22:20:13 +00:00
parent 7cbeabac0f
commit ac63a0783c
5 changed files with 26 additions and 11 deletions
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12
ChangeLog
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@ -1,3 +1,15 @@
2015-06-10 Dmitry V. Levin <ldv@altlinux.org>
* Makeconfig (+interp): Remove unused variable.
* elf/Makefile ($(objpfx)interp.os): Define for [$(build-shared) = yes]
only. Depend on $(common-objpfx)runtime-linker.h instead of
$(elf-objpfx)runtime-linker.h.
($(elf-objpfx)runtime-linker.h): Rename to
$(common-objpfx)runtime-linker.h and move ...
* Makerules [$(build-shared) = yes]: ... here.
* elf/interp.c: Include <runtime-linker.h> instead of
<elf/runtime-linker.h>.
2015-06-09 Adhemerval Zanella <adhemerval.zanella@linaro.org>
* sysdeps/unix/sysv/linux/i386/gettimeofday.c

1
Makeconfig
View File

@ -596,7 +596,6 @@ endif
# Variants of the two previous definitions for statically linking programs.
+prectorT = `$(CC) $(sysdep-LDFLAGS) --print-file-name=crtbeginT.o`
+postctorT = `$(CC) $(sysdep-LDFLAGS) --print-file-name=crtend.o`
+interp = $(addprefix $(elf-objpfx),interp.os)
csu-objpfx = $(common-objpfx)csu/
elf-objpfx = $(common-objpfx)elf/

10
Makerules
View File

@ -123,6 +123,16 @@ $(common-objpfx)libc-abis.stamp: $(..)scripts/gen-libc-abis \
common-generated += $(common-objpfx)libc-abis.h
endif # avoid-generated
ifeq (yes,$(build-shared))
$(common-objpfx)runtime-linker.h: $(common-objpfx)runtime-linker.stamp; @:
$(common-objpfx)runtime-linker.stamp: $(common-objpfx)config.make
$(make-target-directory)
echo '#define RUNTIME_LINKER "$(rtlddir)/$(rtld-installed-name)"' \
> ${@:stamp=T}
$(move-if-change) ${@:stamp=T} ${@:stamp=h}
touch $@
endif
# Make sure the subdirectory for object files gets created.
ifdef objpfx
ifeq (,$(wildcard $(objpfx).))

12
elf/Makefile
View File

@ -365,16 +365,10 @@ $(objpfx)ld.so: $(objpfx)librtld.os $(ld-map)
| $(AWK) '($$7 ~ /^UND(|EF)$$/ && $$1 != "0:" && $$4 != "REGISTER") { print; p=1 } END { exit p != 0 }'
mv -f $@.new $@
ifeq (yes,$(build-shared))
# interp.c exists just to get the runtime linker path into libc.so.
$(objpfx)interp.os: $(elf-objpfx)runtime-linker.h
$(elf-objpfx)runtime-linker.h: $(elf-objpfx)runtime-linker.st; @:
$(elf-objpfx)runtime-linker.st: $(common-objpfx)config.make
$(make-target-directory)
echo '#define RUNTIME_LINKER "$(rtlddir)/$(rtld-installed-name)"' \
> ${@:st=T}
$(move-if-change) ${@:st=T} ${@:st=h}
touch $@
$(objpfx)interp.os: $(common-objpfx)runtime-linker.h
endif
ifneq (ld.so,$(rtld-installed-name))
# Make sure ld.so.1 exists in the build directory so we can link

2
elf/interp.c
View File

@ -16,7 +16,7 @@
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <elf/runtime-linker.h>
#include <runtime-linker.h>
const char __invoke_dynamic_linker__[] __attribute__ ((section (".interp")))
= RUNTIME_LINKER;