x86: ia32 ptrace vs -ENOSYS

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When we're stopped at syscall entry tracing, ptrace can change the %eax
value from -ENOSYS to something else.  If no system call is actually made
because the syscall number (now in orig_eax) is bad, then the %eax value
set by ptrace should be returned to the user.  But, instead it gets reset
to -ENOSYS again.  This is a regression from the native 32-bit kernel.

This change fixes it by leaving the return value alone after entry tracing.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

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Roland McGrath 2008-03-16 21:57:41 -07:00 • committed by Ingo Molnar

parent ede1389f8a

commit 8ab32bb89b

1 changed files with 2 additions and 2 deletions

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arch/x86/ia32/ia32entry.S

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