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| author | H.J. Lu <hjl.tools@gmail.com> | 2018-04-26 05:01:20 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2018-05-02 06:26:19 -0700 |
| commit | 15c19147a8361b7281519b9784b3b823c447cf7a (patch) | |
| tree | b58c6146268ffd5f7b6dc5897dad0871f24518b6 /sysdeps/i386/i586/memcpy.S | |
| parent | 556f5c46c78f094d03b5e3e48900b7e4f312cc5e (diff) | |
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x86-64/swapcontext: Restore the pointer into %rdx after syscall
To prepare for shadow stack support, restore 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/swapcontext.S (__swapcontext):
Restore the pointer into %rdx, after syscall and use %rdx,
instead of %rsi, to restore context.
Diffstat (limited to 'sysdeps/i386/i586/memcpy.S')
0 files changed, 0 insertions, 0 deletions