| commit | 8ab32bb89b5b9bf06147c31947eba65f0f21c3c0 | |
| author | Roland McGrath <roland@redhat.com> | |
| Mon, 17 Mar 2008 04:57:41 +0000 (16 21:57 -0700) | ||
| committer | Ingo Molnar <mingo@elte.hu> | |
| Thu, 17 Apr 2008 15:41:13 +0000 (17 17:41 +0200) | ||
| tree | 2c74e3873400b613b5d717370177cfa4e1d54836 | treesnapshot (tar.gz zip) |
| parent | ede1389f8ab4f3a1343e567133fa9720a054a3aa | commitdiff |
x86: ia32 ptrace vs -ENOSYS
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>
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>
| arch/x86/ia32/ia32entry.S | diffblobblamehistory |