| From 5bcd884f8af5106d0fa380c42cffe07f3c993ed2 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 77ddbbc8f8..d789e77943 100755 |
| --- a/ld/genscripts.sh |
| +++ b/ld/genscripts.sh |
| @@ -310,6 +310,7 @@ 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 |
| @@ -318,10 +319,12 @@ 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/${EMULATION_NAME}.xu |
| +unset PARTIAL_LINKING |
| |
| DATA_ALIGNMENT=${DATA_ALIGNMENT_} |
| RELOCATING=" " |
| diff --git a/ld/scripttempl/elf.sc b/ld/scripttempl/elf.sc |
| index bd7584120e..8bbe052d4b 100644 |
| --- a/ld/scripttempl/elf.sc |
| +++ b/ld/scripttempl/elf.sc |
| @@ -139,8 +139,8 @@ 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) }" |
| -- |
| 2.20.1 |
| |