* [Bug general/28975] New: run-large-elf-file.sh fails in 32-bit cross-compile on 64-bit machine
@ 2022-03-17 20:40 eric.boehm at broadcom dot com
2022-03-20 23:19 ` [Bug general/28975] " mark at klomp dot org
2022-03-24 11:34 ` mark at klomp dot org
0 siblings, 2 replies; 3+ messages in thread
From: eric.boehm at broadcom dot com @ 2022-03-17 20:40 UTC (permalink / raw)
To: elfutils-devel
https://sourceware.org/bugzilla/show_bug.cgi?id=28975
Bug ID: 28975
Summary: run-large-elf-file.sh fails in 32-bit cross-compile on
64-bit machine
Product: elfutils
Version: unspecified
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: general
Assignee: unassigned at sourceware dot org
Reporter: eric.boehm at broadcom dot com
CC: elfutils-devel at sourceware dot org
Target Milestone: ---
run-large-elf-file.sh should not run if it is a 32-bit cross-compile on a
64-bit machine.
The shell script checks
long_bit=$(getconf LONG_BIT)
which will return 64 even if it is a 32-bit compile
Here's a patch which is a bit of a hack. There are probably more appropriate
ways to fix this.
This affects versions 0.181-0.186
--- elfutils-0.181/tests/run-large-elf-file.sh.orig 2020-09-08
04:45:06.000000000 -0700
+++ elfutils-0.181/tests/run-large-elf-file.sh 2022-03-17 12:23:53.967607000
-0700
@@ -21,3 +21,8 @@
# ELF files.
-long_bit=$(getconf LONG_BIT)
+if [[ $CC =~ "-m32" ]]
+then
+ long_bit=32
+else
+ long_bit=$(getconf LONG_BIT)
+fi
echo "long_bit: $long_bit"
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* [Bug general/28975] run-large-elf-file.sh fails in 32-bit cross-compile on 64-bit machine
2022-03-17 20:40 [Bug general/28975] New: run-large-elf-file.sh fails in 32-bit cross-compile on 64-bit machine eric.boehm at broadcom dot com
@ 2022-03-20 23:19 ` mark at klomp dot org
2022-03-24 11:34 ` mark at klomp dot org
1 sibling, 0 replies; 3+ messages in thread
From: mark at klomp dot org @ 2022-03-20 23:19 UTC (permalink / raw)
To: elfutils-devel
https://sourceware.org/bugzilla/show_bug.cgi?id=28975
Mark Wielaard <mark at klomp dot org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |mark at klomp dot org
Assignee|unassigned at sourceware dot org |mark at klomp dot org
Ever confirmed|0 |1
Last reconfirmed| |2022-03-20
Status|UNCONFIRMED |ASSIGNED
--- Comment #1 from Mark Wielaard <mark at klomp dot org> ---
You are right, we should (also) test that the test binary itself is 64bits.
I would propose adding something like this:
# The test binary also needs to be 64bits itself
elfclass=64
testrun ${abs_top_builddir}/src/readelf -h ${abs_builddir}/addsections | grep
ELF32 \
&& elfclass=32
echo elfclass: $elfclass
if test $elfclass -ne 64; then
echo "Only 64bit binaries can create > 4GB ELF files"
exit 77
fi
Full patch:
https://sourceware.org/pipermail/elfutils-devel/2022q1/004752.html
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* [Bug general/28975] run-large-elf-file.sh fails in 32-bit cross-compile on 64-bit machine
2022-03-17 20:40 [Bug general/28975] New: run-large-elf-file.sh fails in 32-bit cross-compile on 64-bit machine eric.boehm at broadcom dot com
2022-03-20 23:19 ` [Bug general/28975] " mark at klomp dot org
@ 2022-03-24 11:34 ` mark at klomp dot org
1 sibling, 0 replies; 3+ messages in thread
From: mark at klomp dot org @ 2022-03-24 11:34 UTC (permalink / raw)
To: elfutils-devel
https://sourceware.org/bugzilla/show_bug.cgi?id=28975
Mark Wielaard <mark at klomp dot org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #2 from Mark Wielaard <mark at klomp dot org> ---
commit d85945f1056641180e03fb48ab770b893125786e
Author: Mark Wielaard <mark@klomp.org>
Date: Mon Mar 21 00:34:24 2022 +0100
configure: Don't check whether -m64 works for 32bit host biarch check
Running a 32bit backtrace test against a 64bit binary doesn't work.
Only a 64bit binary can backtrace a 32bit binary. So disable the
biarch check that inserts -m64 for a 32bit host.
https://sourceware.org/bugzilla/show_bug.cgi?id=24158
Signed-off-by: Mark Wielaard <mark@klomp.org>
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2022-03-17 20:40 [Bug general/28975] New: run-large-elf-file.sh fails in 32-bit cross-compile on 64-bit machine eric.boehm at broadcom dot com
2022-03-20 23:19 ` [Bug general/28975] " mark at klomp dot org
2022-03-24 11:34 ` mark at klomp dot org
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