Commit 1edb4c51 authored by Peter Seiderer's avatar Peter Seiderer Committed by Thomas Petazzoni
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Makefile: valgrind needs non-stripped dynamic linker library 



Fixes the following valgrind error (tested on freescale imx6):

valgrind:  Fatal error at startup: a function redirection
valgrind:  which is mandatory for this platform-tool combination
valgrind:  cannot be set up.  Details of the redirection are:
valgrind:
valgrind:  A must-be-redirected function
valgrind:  whose name matches the pattern:      strcmp
valgrind:  in an object with soname matching:   ld-linux-armhf.so.3
valgrind:  was not found whilst processing
valgrind:  symbols from the object with soname: ld-linux-armhf.so.3
valgrind:
valgrind:  Possible fixes: (1, short term): install glibc's debuginfo
valgrind:  package on this machine.  (2, longer term): ask the packagers
valgrind:  for your Linux distribution to please in future ship a non-
valgrind:  stripped ld.so (or whatever the dynamic linker .so is called)
valgrind:  that exports the above-named function using the standard
valgrind:  calling conventions for this platform.  The package you need
valgrind:  to install for fix (1) is called

Note that we can still strip the dynamic linker, but only strip the
debugging symbols and nothing else.

[Thomas: slightly adjust comment in the code.]

Signed-off-by: default avatarPeter Seiderer <ps.report@gmx.net>
Signed-off-by: default avatarThomas Petazzoni <thomas.petazzoni@free-electrons.com>
parent aee53f8b

Makefile

+7 −1
Original line number Diff line number Diff line
@@ -473,11 +473,12 @@ STRIP_FIND_CMD += -type f \( -perm /111 -o -name '*.so*' \) 
# file exclusions:

# - libpthread.so: a non-stripped libpthread shared library is needed for

#   proper debugging of pthread programs using gdb.

# - ld.so: a non-stripped dynamic linker library is needed for valgrind

# - kernel modules (*.ko): do not function properly when stripped like normal

#   applications and libraries. Normally kernel modules are already excluded

#   by the executable permission check above, so the explicit exclusion is only

#   done for kernel modules with incorrect permissions.

STRIP_FIND_CMD += -not \( $(call findfileclauses,libpthread*.so* *.ko $(call qstrip,$(BR2_STRIP_EXCLUDE_FILES))) \) -print0

STRIP_FIND_CMD += -not \( $(call findfileclauses,libpthread*.so* ld-*.so* *.ko $(call qstrip,$(BR2_STRIP_EXCLUDE_FILES))) \) -print0



ifeq ($(BR2_ECLIPSE_REGISTER),y)

define TOOLCHAIN_ECLIPSE_REGISTER
@@ -590,6 +591,11 @@ ifeq ($(BR2_TOOLCHAIN_HAS_THREADS),y) 
		xargs -r $(STRIPCMD) $(STRIP_STRIP_DEBUG)

endif



# Valgrind needs ld.so with enough information, so only strip

# debugging symbols.

	find $(TARGET_DIR)/lib -type f -name 'ld-*.so*' | \

		xargs -r $(STRIPCMD) $(STRIP_STRIP_DEBUG)



	mkdir -p $(TARGET_DIR)/etc

	# Mandatory configuration file and auxiliary cache directory

	# for recent versions of ldconfig