[PATCH v2 0/1] Cygwin: pty: Limit API hook to the program linked with the APIs.

[Takashi Yano <takashi dot yano at nifty dot ne dot jp>]

- API hook used for pseudo console support causes slow down.
  This patch limits API hook to only program which is linked
  with the corresponding APIs. Normal cygwin program is not
  linked with such APIs (such as WriteFile, etc...) directly,
  therefore, no slow down occurs. However, console access by
  cygwin.dll itself cannot switch the r/w pipe to pseudo console
  side. Therefore, the code to switch it forcely to pseudo
  console side is added to smallprint.cc and strace.cc.

v2:
Unify set_ishybrid_and_switch_to_pcon() and CHK_CONSOLE_ACCESS()
because they have exactly the same functionality.

Takashi Yano (1):
  Cygwin: pty: Limit API hook to the program linked with the APIs.

 winsup/cygwin/fhandler_tty.cc | 106 +++++++++++++++++++---------------
 winsup/cygwin/smallprint.cc   |   2 +
 winsup/cygwin/strace.cc       |  26 +--------
 winsup/cygwin/winsup.h        |   3 +
 4 files changed, 66 insertions(+), 71 deletions(-)

-- 
2.21.0