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| author | Corinna Vinschen <corinna@vinschen.de> | 2015-12-03 22:56:44 +0100 |
|---|---|---|
| committer | Corinna Vinschen <corinna@vinschen.de> | 2015-12-03 22:56:44 +0100 |
| commit | 12743c2d5d2721f3a80b4d7671a349be03c1f520 (patch) | |
| tree | eef2fbd63e2fb09cb011b7463e14c056251c892e /winsup/cygwin/ChangeLog | |
| parent | 8f4da28eb68d583840cfbca8896755c60d2c8d15 (diff) | |
| download | newlib-12743c2d5d2721f3a80b4d7671a349be03c1f520.zip newlib-12743c2d5d2721f3a80b4d7671a349be03c1f520.tar.gz newlib-12743c2d5d2721f3a80b4d7671a349be03c1f520.tar.bz2 | |
On 64 bit, only create new thread stack if started from 32 bit process on affected platforms
* dcrt0.cc (dll_crt0_0): On 64 bit, set wow64_needs_stack_adjustment
if not started from a 64 bit process.
(_dll_crt0): Enable wow64_needs_stack_adjustment branch on 64 bit
as well. Remove 64 bit only code. Introduce CREATE_STACK and
FIX_STACK macros to conditionalize the code. Rearrange and
partially rewrite comments.
* wincap.h (wincaps::has_3264_stack_broken): New element.
* wincap.cc: Implement above element throughout.
(wincapc::init): Set has_3264_stack_broken to false on 32 bit.
* wow64.cc: Enable functionality on 64 bit architecture, except for
wow64_revert_to_original_stack. Enhance comments to explain.
(wow64_eval_expected_main_stack): Make 64 bit clean.
(wow64_test_for_64bit_parent): Ditto.
* wow64.h: Export wow64_revert_to_original_stack on 32 bit only,
everything else on all architectures.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Diffstat (limited to 'winsup/cygwin/ChangeLog')
| -rw-r--r-- | winsup/cygwin/ChangeLog | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog index 59e8cce..747e876 100644 --- a/winsup/cygwin/ChangeLog +++ b/winsup/cygwin/ChangeLog @@ -1,5 +1,23 @@ 2015-12-03 Corinna Vinschen <corinna@vinschen.de> + * dcrt0.cc (dll_crt0_0): On 64 bit, set wow64_needs_stack_adjustment + if not started from a 64 bit process. + (_dll_crt0): Enable wow64_needs_stack_adjustment branch on 64 bit + as well. Remove 64 bit only code. Introduce CREATE_STACK and + FIX_STACK macros to conditionalize the code. Rearrange and + partially rewrite comments. + * wincap.h (wincaps::has_3264_stack_broken): New element. + * wincap.cc: Implement above element throughout. + (wincapc::init): Set has_3264_stack_broken to false on 32 bit. + * wow64.cc: Enable functionality on 64 bit architecture, except for + wow64_revert_to_original_stack. Enhance comments to explain. + (wow64_eval_expected_main_stack): Make 64 bit clean. + (wow64_test_for_64bit_parent): Ditto. + * wow64.h: Export wow64_revert_to_original_stack on 32 bit only, + everything else on all architectures. + +2015-12-03 Corinna Vinschen <corinna@vinschen.de> + * fhandler_process.cc (thread_info::thread_info): Accommodate the fact that TEBs take two pages. (thread_info::fill_if_match): Rewrite the method for post W10 1511 TEB |