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12743c2d5d
* 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>
20 lines
505 B
C
20 lines
505 B
C
/* wow64.h
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Copyright 2011, 2012, 2015 Red Hat, Inc.
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This file is part of Cygwin.
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This software is a copyrighted work licensed under the terms of the
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Cygwin license. Please consult the file "CYGWIN_LICENSE" for
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details. */
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extern bool NO_COPY wow64_needs_stack_adjustment;
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extern bool wow64_test_for_64bit_parent ();
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extern void wow64_respawn_process () __attribute__ ((noreturn));
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#ifndef __x86_64__
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extern PVOID wow64_revert_to_original_stack (PVOID &allocationbase);
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#endif /* !__x86_64__ */
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