| commit | 8b8f32b2800a132b4d95053fad7c9b44309f1d6e | |
| author | H.J. Lu <hjl.tools@gmail.com> | |
| Wed, 2 May 2018 13:21:09 +0000 (2 06:21 -0700) | ||
| committer | H.J. Lu <hjl.tools@gmail.com> | |
| Wed, 2 May 2018 13:21:24 +0000 (2 06:21 -0700) | ||
| tree | af54b6e0201e547f58dbeb460b9aa2a48b782e38 | treesnapshot (tar.gz zip) |
| parent | d6cc1829aa31b6fb060f24dffd28aa6705cdd33a | commitdiff |
x86-64/setcontext: Pop the pointer into %rdx after syscall
To prepare for shadow stack support, pop the pointer into %rdx after
syscall and use %rdx, instead of %rsi, to restore context. There is
no functional change.
Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* sysdeps/unix/sysv/linux/x86_64/setcontext.S (__setcontext):
Pop the pointer into %rdx after syscall and use %rdx, instead
of %rsi, to restore context.
To prepare for shadow stack support, pop the pointer into %rdx after
syscall and use %rdx, instead of %rsi, to restore context. There is
no functional change.
Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* sysdeps/unix/sysv/linux/x86_64/setcontext.S (__setcontext):
Pop the pointer into %rdx after syscall and use %rdx, instead
of %rsi, to restore context.
| ChangeLog | diffblobblamehistory | |
| sysdeps/unix/sysv/linux/x86_64/setcontext.S | diffblobblamehistory |