** Description changed:
+ ## DRAFT ###
+ [Impact]
+ valgrind on bionic coredump and errors out as follows:
+
+ ARM64 front end: branch_etc
+ disInstr(arm64): unhandled instruction 0xD5380000
+ disInstr(arm64): 1101'0101 0011'1000 0000'0000 0000'0000
+ ==11950== valgrind: Unrecognised instruction at address 0x4014c90.
+ ==11950== at 0x4014C90: init_cpu_features (cpu-features.c:72)
+ ==11950== by 0x4014C90: dl_platform_init (dl-machine.h:208)
+ ==11950== by 0x4014C90: _dl_sysdep_start (dl-sysdep.c:231)
+ ==11950== by 0x40018C3: _dl_start_final (rtld.c:414)
+ ==11950== by 0x4001B47: _dl_start (rtld.c:523)
+ ==11950== by 0x40011C7: ??? (in /lib/aarch64-linux-gnu/ld-2.27.so)
+ ==11950== Your program just tried to execute an instruction that Valgrind
+ ==11950== did not recognise. There are two possible reasons for this.
+ ==11950== 1. Your program has a bug and erroneously jumped to a non-code
+ ==11950== location. If you are running Memcheck and you just saw a
+ ==11950== warning about a bad jump, it's probably your program's fault.
+ ==11950== 2. The instruction is legitimate but Valgrind doesn't handle it,
+ ==11950== i.e. it's Valgrind's fault. If you think this is the case or
+ ==11950== you are not sure, please let us know and we'll try to fix it.
+ ==11950== Either way, Valgrind will now raise a SIGILL signal which will
+ ==11950== probably kill your program.
+ ==11950==
+ ==11950== Process terminating with default action of signal 4 (SIGILL)
+ ==11950== Illegal opcode at address 0x4014C90
+ ==11950== at 0x4014C90: init_cpu_features (cpu-features.c:72)
+ ==11950== by 0x4014C90: dl_platform_init (dl-machine.h:208)
+ ==11950== by 0x4014C90: _dl_sysdep_start (dl-sysdep.c:231)
+ ==11950== by 0x40018C3: _dl_start_final (rtld.c:414)
+ ==11950== by 0x4001B47: _dl_start (rtld.c:523)
+ ==11950== by 0x40011C7: ??? (in /lib/aarch64-linux-gnu/ld-2.27.so)
+
+
+ [Test Case]
+
+ 1) Write a 'Hello World' program:
+ ----
+ #include <stdio.h>
+
+ void main(void) {
+ printf("Hello World!\n");
+ };
+ ----
+
+ 2) Build it:
+ $ cc -o hello hello.c
+
+ 3) Then run valgrind on it:
+ $ valgrind ./hello
+
+ [Regression Potential]
+
+ [Other information]
+
+ Upstream fix:
+
https://sourceware.org/git/?p=valgrind.git;a=commit;h=fbbb696c5d1e93d4ac6cb548c68bb3f443ceef42
+
+ * Only affecting Bionic:
+
+ # git describe --contains fbbb696c5d1e93d4ac6cb548c68bb3f443ceef42
+ VALGRIND_3_14_0~96
+
+ # rmadison valgrind
+ => valgrind | 1:3.13.0-2ubuntu2.1 | bionic-updates
+ valgrind | 1:3.14.0-2ubuntu6 | disco
+ valgrind | 1:3.15.0-1ubuntu3.1 | eoan-updates
+ valgrind | 1:3.15.0-1ubuntu5 | focal
+
+
+ [Original Description]
+
I'm performing Valgrind testing on an ElPotato running Ubuntu Bionic
Aarch64 image. My program is dying like in
https://bugs.kde.org/show_bug.cgi?id=381556 :
-
```
$ valgrind --track-origins=yes --suppressions=cryptopp.supp ./cryptest.exe v
==12969== Memcheck, a memory error detector
==12969== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
==12969== Using Valgrind-3.13.0 and LibVEX; rerun with -h for copyright info
==12969== Command: ./cryptest.exe v
==12969==
ARM64 front end: branch_etc
disInstr(arm64): unhandled instruction 0xD5380000
disInstr(arm64): 1101'0101 0011'1000 0000'0000 0000'0000
==12969== valgrind: Unrecognised instruction at address 0x4014c90.
==12969== at 0x4014C90: init_cpu_features (cpu-features.c:72)
==12969== by 0x4014C90: dl_platform_init (dl-machine.h:208)
==12969== by 0x4014C90: _dl_sysdep_start (dl-sysdep.c:231)
==12969== by 0x40018C3: _dl_start_final (rtld.c:414)
==12969== by 0x4001B47: _dl_start (rtld.c:523)
==12969== by 0x40011C7: ??? (in /lib/aarch64-linux-gnu/ld-2.27.so)
...
```
Here's a similar Red Hat issue report:
https://bugzilla.redhat.com/show_bug.cgi?id=1467952 .
Please pickup the patch in the 381556 bug report.
-----
$ lsb_release -rd
Description: Ubuntu 18.04.2 LTS
Release: 18.04
$ apt-cache policy valgrind
valgrind:
- Installed: 1:3.13.0-2ubuntu2.1
- Candidate: 1:3.13.0-2ubuntu2.1
- Version table:
- *** 1:3.13.0-2ubuntu2.1 500
- 500 http://ports.ubuntu.com bionic-updates/main arm64 Packages
- 100 /var/lib/dpkg/status
- 1:3.13.0-2ubuntu2 500
- 500 http://ports.ubuntu.com bionic/main arm64 Packages
+ Installed: 1:3.13.0-2ubuntu2.1
+ Candidate: 1:3.13.0-2ubuntu2.1
+ Version table:
+ *** 1:3.13.0-2ubuntu2.1 500
+ 500 http://ports.ubuntu.com bionic-updates/main arm64 Packages
+ 100 /var/lib/dpkg/status
+ 1:3.13.0-2ubuntu2 500
+ 500 http://ports.ubuntu.com bionic/main arm64 Packages
--
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https://bugs.launchpad.net/bugs/1826811
Title:
Valgrind unhandled instruction 0xD5380000 on Aarch64
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