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Fix backtrace for hppa (bug 22719).

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The only architecture in glibc that uses the generic debug/backtrace.c
is hppa.  The debug/tst-backtrace* tests fail for hppa, so in fact the
generic debug/backtrace.c is not functional anywhere.  Instead, the
x86_64 version is a reasonably generic version that uses
_Unwind_Backtrace from libgcc to backtrace using unwind info, and is
used by several architectures.  This patch adds hppa to the
architectures using it (leaving open the possibility of a subsequent
cleanup for 2.28 of moving the x86_64 version to debug/backtrace.c,
and removing all the frame.h files that are now unused).

Reported by Adhemerval in
<https://sourceware.org/ml/libc-alpha/2018-01/msg00564.html> that this
does fix the backtrace test failures for hppa.

	[BZ #22719]
	* sysdeps/hppa/backtrace.c: New file.
This commit is contained in:
Joseph Myers 2018-01-17 13:31:47 +00:00
parent 207a72e298
commit 1eeddc5854
2 changed files with 6 additions and 0 deletions
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ChangeLog
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@ -1,3 +1,8 @@
2018-01-17 Joseph Myers <joseph@codesourcery.com>
[BZ #22719]
* sysdeps/hppa/backtrace.c: New file.
2018-01-17 H.J. Lu <hongjiu.lu@intel.com>
[BZ #22715]

1
sysdeps/hppa/backtrace.c Normal file
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@ -0,0 +1 @@
#include <sysdeps/x86_64/backtrace.c>