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[Bug breakpoints/17280] breakpoint problem on aarch64 (in qemu full-system emulation): SIGTRAP/SIGSEGV in debugged program
- From: "akiss at inf dot u-szeged.hu" <sourceware-bugzilla at sourceware dot org>
- To: gdb-prs at sourceware dot org
- Date: Mon, 18 Aug 2014 12:14:35 +0000
- Subject: [Bug breakpoints/17280] breakpoint problem on aarch64 (in qemu full-system emulation): SIGTRAP/SIGSEGV in debugged program
- Auto-submitted: auto-generated
- References: <bug-17280-4717 at http dot sourceware dot org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=17280
Akos Kiss <akiss at inf dot u-szeged.hu> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |INVALID
--- Comment #1 from Akos Kiss <akiss at inf dot u-szeged.hu> ---
All problems turned out to be caused by qemu limitations:
- The pc being off by 4 was an incorrect implementation of the BRK instruction.
- All the remaining issues were caused by qemu not implementing support for
single-stepping.
http://lists.nongnu.org/archive/html/qemu-devel/2014-08/msg02909.html
With the patches from the qemu-devel mailing list applied, even the
ubuntu-packaged gdb works correctly.
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