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From 689d011688b5ff9481d4367bef3dea7a7b2867fb Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Mon, 2 Mar 2015 01:58:54 +0000
Subject: [PATCH 01/15] binutils-crosssdk: Generate relocatable SDKs
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.
Upstream-Status: Inappropriate [SDK specific]
Signed-off-by: Laurentiu Palcu <laurentiu.palcu@intel.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
ld/genscripts.sh | 3 +++
ld/scripttempl/elf.sc | 4 ++--
2 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/ld/genscripts.sh b/ld/genscripts.sh
index b6940d376d..a42c4d7a4b 100755
--- a/ld/genscripts.sh
+++ b/ld/genscripts.sh
@@ -277,6 +277,7 @@ DATA_ALIGNMENT_u="${DATA_ALIGNMENT_u-${DATA_ALIGNMENT_r}}"
LD_FLAG=r
DATA_ALIGNMENT=${DATA_ALIGNMENT_r}
DEFAULT_DATA_ALIGNMENT="ALIGN(${SEGMENT_SIZE})"
+PARTIAL_LINKING=" "
( echo "/* Script for ld -r: link without relocation */"
. ${CUSTOMIZER_SCRIPT}
. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
@@ -285,10 +286,12 @@ DEFAULT_DATA_ALIGNMENT="ALIGN(${SEGMENT_SIZE})"
LD_FLAG=u
DATA_ALIGNMENT=${DATA_ALIGNMENT_u}
CONSTRUCTING=" "
+PARTIAL_LINKING=" "
( echo "/* Script for ld -Ur: link w/out relocation, do create constructors */"
. ${CUSTOMIZER_SCRIPT}
. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xu
+unset PARTIAL_LINKING
LD_FLAG=
DATA_ALIGNMENT=${DATA_ALIGNMENT_}
diff --git a/ld/scripttempl/elf.sc b/ld/scripttempl/elf.sc
index e65f9a3ccf..d99d2c1d2a 100644
--- a/ld/scripttempl/elf.sc
+++ b/ld/scripttempl/elf.sc
@@ -138,8 +138,8 @@ if test -z "$DATA_SEGMENT_ALIGN"; then
DATA_SEGMENT_RELRO_END=". = DATA_SEGMENT_RELRO_END (${SEPARATE_GOTPLT-0}, .);"
fi
fi
-if test -z "${INITIAL_READONLY_SECTIONS}${CREATE_SHLIB}"; then
- INITIAL_READONLY_SECTIONS=".interp ${RELOCATING-0} : { *(.interp) }"
+if test -z "${INITIAL_READONLY_SECTIONS}${CREATE_SHLIB}${PARTIAL_LINKING}"; then
+ INITIAL_READONLY_SECTIONS=".interp ${RELOCATING-0} : { *(.interp); . = 0x1000; }"
fi
if test -z "$PLT"; then
IPLT=".iplt ${RELOCATING-0} : { *(.iplt) }"
--
2.12.0
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