[oe-commits] Laurentiu Palcu : binutils: relocatable SDK: change PT_INTERP section size

[git at git.openembedded.org]

Module: openembedded-core.git
Branch: master
Commit: 9bf657bbdfe7c1a9dff1cc121eab496e3e407197
URL:    http://git.openembedded.org/?p=openembedded-core.git&a=commit;h=9bf657bbdfe7c1a9dff1cc121eab496e3e407197

Author: Laurentiu Palcu <laurentiu.palcu at intel.com>
Date:   Tue Jul 31 11:49:34 2012 +0300

binutils: relocatable SDK: change PT_INTERP section size

This patch is needed so that all SDK binaries have the PT_INTERP section
size set to 4096 (max path size in Linux) in order to be able to parse
the binaries later and change the interpreter to the path we want.

Signed-off-by: Laurentiu Palcu <laurentiu.palcu at intel.com>
Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>

---

 .../binutils/binutils-crosssdk_2.22.bb             |    5 ++++
 .../binutils/binutils/relocatable_sdk.patch        |   22 ++++++++++++++++++++
 2 files changed, 27 insertions(+), 0 deletions(-)

diff --git a/meta/recipes-devtools/binutils/binutils-crosssdk_2.22.bb b/meta/recipes-devtools/binutils/binutils-crosssdk_2.22.bb
index 0eb5684..c936549 100644
--- a/meta/recipes-devtools/binutils/binutils-crosssdk_2.22.bb
+++ b/meta/recipes-devtools/binutils/binutils-crosssdk_2.22.bb
@@ -2,8 +2,13 @@ require binutils-cross_${PV}.bb
 
 inherit crosssdk
 
+PR = "r1"
+
 PROVIDES = "virtual/${TARGET_PREFIX}binutils-crosssdk"
 
+
+SRC_URI += "file://relocatable_sdk.patch"
+
 do_configure_prepend () {
 	sed -i 's#/usr/local/lib /lib /usr/lib#${SDKPATHNATIVE}/lib ${SDKPATHNATIVE}/usr/lib /usr/local/lib /lib /usr/lib#' ${S}/ld/configure.tgt
 }
diff --git a/meta/recipes-devtools/binutils/binutils/relocatable_sdk.patch b/meta/recipes-devtools/binutils/binutils/relocatable_sdk.patch
new file mode 100644
index 0000000..33f9e68
--- /dev/null
+++ b/meta/recipes-devtools/binutils/binutils/relocatable_sdk.patch
@@ -0,0 +1,22 @@
+Upstream-Status: Inappropriate [SDK specific]
+
+This patch will modify the ELF linker scripts so that the crosssdk linker will
+generate binaries with a 4096 bytes PT_INTERP section. When the binaries will
+be relocated, at SDK install time, the interpreter path can be easily changed
+by the relocating script.
+
+Signed-off-by: Laurentiu Palcu <laurentiu.palcu at intel.com>
+
+Index: binutils-2.22/ld/scripttempl/elf.sc
+===================================================================
+--- binutils-2.22.orig/ld/scripttempl/elf.sc
++++ binutils-2.22/ld/scripttempl/elf.sc
+@@ -116,7 +116,7 @@ if test -n "${COMMONPAGESIZE}"; then
+   DATA_SEGMENT_RELRO_END=". = DATA_SEGMENT_RELRO_END (${SEPARATE_GOTPLT-0}, .);"
+ fi
+ if test -z "${INITIAL_READONLY_SECTIONS}${CREATE_SHLIB}"; then
+-  INITIAL_READONLY_SECTIONS=".interp       ${RELOCATING-0} : { *(.interp) }"
++  INITIAL_READONLY_SECTIONS=".interp       ${RELOCATING-0} : { *(.interp); . = 0x1000; }"
+ fi
+ if test -z "$PLT"; then
+   IPLT=".iplt         ${RELOCATING-0} : { *(.iplt) }"