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[Bug ld/20283] New: Make -z relro the default if possible
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From: |
hjl.tools at gmail dot com |
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Subject: |
[Bug ld/20283] New: Make -z relro the default if possible |
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Date: |
Tue, 21 Jun 2016 13:27:09 +0000 |
https://sourceware.org/bugzilla/show_bug.cgi?id=20283
Bug ID: 20283
Summary: Make -z relro the default if possible
Product: binutils
Version: 2.27 (HEAD)
Status: NEW
Severity: normal
Priority: P2
Component: ld
Assignee: unassigned at sourceware dot org
Reporter: hjl.tools at gmail dot com
Target Milestone: ---
Since "-z relro" makes more pages read-only after relocation, I'd
like to make it the default if possible. The following ELF targets
don't support "-z relro":
check.arc-linux-uclibc:FAIL: strip -z relro -shared (relro1)
check.arc-linux-uclibc:FAIL: objcopy -z relro -shared (relro1)
check.arc-linux-uclibc:FAIL: objcopy -z relro (tdata1)
check.arc-linux-uclibc:FAIL: objcopy -shared -z relro (tdata1)
check.arc-linux-uclibc:FAIL: objcopy -z relro (tdata2)
check.arc-linux-uclibc:FAIL: objcopy -shared -z relro (tdata2)
check.arc-linux-uclibc:FAIL: objcopy -z relro (tdata3)
check.arc-linux-uclibc:FAIL: objcopy -shared -z relro (tdata3)
check.arc-linux-uclibc:FAIL: objcopy -shared -z relro (tbss1)
check.arc-linux-uclibc:FAIL: objcopy -shared -z relro (tbss2)
check.arc-linux-uclibc:FAIL: objcopy -shared -z relro (tbss3)
check.frv-linux:FAIL: strip -z relro (relro1)
check.frv-linux:FAIL: strip -z relro -shared (relro1)
check.frv-linux:FAIL: objcopy -z relro (relro1)
check.frv-linux:FAIL: objcopy -z relro -shared (relro1)
check.frv-linux:FAIL: objcopy -z relro (tdata1)
check.frv-linux:FAIL: objcopy -shared -z relro (tdata1)
check.frv-linux:FAIL: objcopy -z relro (tdata2)
check.frv-linux:FAIL: objcopy -shared -z relro (tdata2)
check.frv-linux:FAIL: objcopy -z relro (tdata3)
check.frv-linux:FAIL: objcopy -shared -z relro (tdata3)
check.frv-linux:FAIL: objcopy -shared -z relro (tbss1)
check.frv-linux:FAIL: objcopy -shared -z relro (tbss2)
check.frv-linux:FAIL: objcopy -shared -z relro (tbss3)
check.hppa64-linux:FAIL: strip -z relro (relro1)
check.hppa64-linux:FAIL: strip -z relro -shared (relro1)
check.hppa64-linux:FAIL: objcopy -z relro (relro1)
check.hppa64-linux:FAIL: objcopy -z relro -shared (relro1)
check.hppa64-linux:FAIL: objcopy -z relro (tdata1)
check.hppa64-linux:FAIL: objcopy -shared -z relro (tdata1)
check.hppa64-linux:FAIL: objcopy -z relro (tdata2)
check.hppa64-linux:FAIL: objcopy -shared -z relro (tdata2)
check.hppa-linux:FAIL: strip -z relro (relro1)
check.hppa-linux:FAIL: strip -z relro -shared (relro1)
check.hppa-linux:FAIL: objcopy -z relro (relro1)
check.hppa-linux:FAIL: objcopy -z relro -shared (relro1)
check.hppa-linux:FAIL: objcopy -z relro (tdata1)
check.hppa-linux:FAIL: objcopy -shared -z relro (tdata1)
check.hppa-linux:FAIL: objcopy -z relro (tdata2)
check.hppa-linux:FAIL: objcopy -shared -z relro (tdata2)
check.hppa-linux:FAIL: objcopy -z relro (tdata3)
check.hppa-linux:FAIL: objcopy -shared -z relro (tdata3)
check.hppa-linux:FAIL: objcopy -shared -z relro (tbss1)
check.hppa-linux:FAIL: objcopy -shared -z relro (tbss2)
check.hppa-linux:FAIL: objcopy -shared -z relro (tbss3)
check.ia64-linux:FAIL: strip -z relro (relro1)
check.ia64-linux:FAIL: strip -z relro -shared (relro1)
check.ia64-linux:FAIL: objcopy -z relro (relro1)
check.ia64-linux:FAIL: objcopy -z relro -shared (relro1)
check.ia64-linux:FAIL: objcopy -z relro (tdata1)
check.ia64-linux:FAIL: objcopy -shared -z relro (tdata1)
check.ia64-linux:FAIL: objcopy -z relro (tdata2)
check.ia64-linux:FAIL: objcopy -shared -z relro (tdata2)
check.ia64-linux:FAIL: objcopy -z relro (tdata3)
check.ia64-linux:FAIL: objcopy -shared -z relro (tdata3)
check.ia64-linux:FAIL: objcopy -shared -z relro (tbss1)
check.ia64-linux:FAIL: objcopy -shared -z relro (tbss2)
check.ia64-linux:FAIL: objcopy -shared -z relro (tbss3)
check.mips64-linux:FAIL: objcopy -shared -z relro (tbss1)
check.mips64-linux:FAIL: objcopy -shared -z relro (tbss2)
check.mips64-linux:FAIL: objcopy -shared -z relro (tbss3)
check.mipsel-linux-gnu:FAIL: objcopy -shared -z relro (tbss1)
check.mipsel-linux-gnu:FAIL: objcopy -shared -z relro (tbss2)
check.mipsel-linux-gnu:FAIL: objcopy -shared -z relro (tbss3)
check.mipsisa32el-linux:FAIL: objcopy -shared -z relro (tbss1)
check.mipsisa32el-linux:FAIL: objcopy -shared -z relro (tbss2)
check.mipsisa32el-linux:FAIL: objcopy -shared -z relro (tbss3)
check.mips-linux:FAIL: objcopy -shared -z relro (tbss1)
check.mips-linux:FAIL: objcopy -shared -z relro (tbss2)
check.mips-linux:FAIL: objcopy -shared -z relro (tbss3)
We can make "-z relro" opt-in or opt-out. Since most of ELF targets
support relro, we can opt-out it for the above targets.
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- [Bug ld/20283] New: Make -z relro the default if possible,
hjl.tools at gmail dot com <=
- [Bug ld/20283] Make -z relro the default if possible, hjl.tools at gmail dot com, 2016/06/21
- [Bug ld/20283] Make -z relro the default if possible, hjl.tools at gmail dot com, 2016/06/21
- [Bug ld/20283] Make -z relro the default if possible, hjl.tools at gmail dot com, 2016/06/21
- [Bug ld/20283] Make -z relro the default if possible, cvs-commit at gcc dot gnu.org, 2016/06/22
- [Bug ld/20283] Make -z relro the default if possible, cvs-commit at gcc dot gnu.org, 2016/06/22
- [Bug ld/20283] Make -z relro the default if possible, hjl.tools at gmail dot com, 2016/06/22