Public bug reported:
I'll attach a binary that runs fine with qemu-system-arm V2.2.0 but V2.7.0
segfaults.
By stepping through with gdb I found that the segfaults happens when executing
the line "smulbb r7, r5, r5" (where r7=0x1, r5=0x12).
I'll also attach a debugger screenshot.
call and output:
/opt/qemu-system-arm -M integratorcp -cpu cortex-m3 -semihosting
-nographic -monitor null -serial null -no-reboot -kernel
0MFW_SafetyFunctions_ParameteruP1_CUNIT.elf
------------ CUnit_MFW_SafetyFunctions_Parameter ------------
CUnit - A Unit testing framework for C - Version 2.1-0
http://cunit.sourceforge.net/
Suite: Suite_MFW_SafetyFunctions_Parameter
Test: MFW_SafetyFunctions_Parameter_PositionLimiter ... Segmentation fault
(core dumped)
** Affects: qemu
Importance: Undecided
Status: New
** Tags: qemu segfault
** Attachment added: "elf-file for reproduction"
https://bugs.launchpad.net/bugs/1636126/+attachment/4766311/+files/0MFW_SafetyFunctions_ParameteruP1_CUNIT.elf
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https://bugs.launchpad.net/bugs/1636126
Title:
qemu-system-arm segfaults on "smulbb r7, r5, r5"
Status in QEMU:
New
Bug description:
I'll attach a binary that runs fine with qemu-system-arm V2.2.0 but V2.7.0
segfaults.
By stepping through with gdb I found that the segfaults happens when
executing the line "smulbb r7, r5, r5" (where r7=0x1, r5=0x12).
I'll also attach a debugger screenshot.
call and output:
/opt/qemu-system-arm -M integratorcp -cpu cortex-m3 -semihosting
-nographic -monitor null -serial null -no-reboot -kernel
0MFW_SafetyFunctions_ParameteruP1_CUNIT.elf
------------ CUnit_MFW_SafetyFunctions_Parameter ------------
CUnit - A Unit testing framework for C - Version 2.1-0
http://cunit.sourceforge.net/
Suite: Suite_MFW_SafetyFunctions_Parameter
Test: MFW_SafetyFunctions_Parameter_PositionLimiter ... Segmentation fault
(core dumped)
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