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authorRoland McGrath <roland@redhat.com>2008-04-20 13:10:12 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-21 15:53:41 -0700
commite16b27816462de700f9508d86954410c41105dc2 (patch)
treef3827a23a43dcaad06362d511ac20d576b9128d5 /kernel/.gitignore
parent553a56726be86c09cfa53c84da1ea0e2043e364e (diff)
ptrace: compat_ptrace_request siginfo
This adds support for PTRACE_GETSIGINFO and PTRACE_SETSIGINFO in compat_ptrace_request. It relies on existing arch definitions for copy_siginfo_to_user32 and copy_siginfo_from_user32. On powerpc, this fixes a longstanding regression of 32-bit ptrace calls on 64-bit kernels vs native calls (64-bit calls or 32-bit kernels). This can be seen in a 32-bit call using PTRACE_GETSIGINFO to examine e.g. siginfo_t.si_addr from a signal that sets it. (This was broken as of 2.6.24 and, I presume, many or all prior versions.) Signed-off-by: Roland McGrath <roland@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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