e753e4129a
* dcrt0.cc: Semi-revert commit 12743c2d5d.
(dll_crt0_0): Drop setting wow64_needs_stack_adjustment on 64 bit.
(_dll_crt0): Split out 64 bit code again and always create new main
thread stack, unless forked off from the non main thread in the parent.
Call create_new_main_thread_stack with parent stack commitsize if
started from the parent's main thread.
Only call child_info_fork::alloc_stack for the latter case on 64 bit.
Slightly rearrange moving rsp and rbp to new stack and document how.
Revert 32 bit wow64 handling to its former self.
* miscfunc.cc (create_new_main_thread_stack): Take a commitsize
parameter and use it if it's not 0. Don't set _main_tls here, it's
done in the caller _dll_crt0 anyway. Return stackbase - 16 bytes,
rather than stacklimit (which was very wrong anyway).
* miscfuncs.h (create_new_main_thread_stack): Accommodate declaration
to aforementioned change.
* wincap.h (wincaps::has_3264_stack_broken): Remove element.
* wincap.cc: Ditto, throughout.
* wow64.cc: Semi-revert to pre-12743c2d5d2721f3a80b4d7671a349be03c1f520
but keep architecture-agnostic type changes intact. Fix formatting.
* wow64.h: Revert to pre-12743c2d5d2721f3a80b4d7671a349be03c1f520.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
22 lines
607 B
C
22 lines
607 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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#ifndef __x86_64__
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/* WOW64 only plays a role in the 32 bit version. Don't use any of this
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in the 64 bit version. */
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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 PVOID wow64_revert_to_original_stack (PVOID &allocationbase);
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extern void wow64_respawn_process () __attribute__ ((noreturn));
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#endif /* !__x86_64__ */
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