[newlib-cygwin] Cygwin: drop 32 bit considerations in crt0 code

[Corinna Vinschen]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=866ae2c25479ef0c9ad128265090b521b6e857c1

commit 866ae2c25479ef0c9ad128265090b521b6e857c1
Author: Corinna Vinschen <corinna@vinschen.de>
Date:   Mon May 16 17:24:48 2022 +0200

    Cygwin: drop 32 bit considerations in crt0 code
    
    Signed-off-by: Corinna Vinschen <corinna@vinschen.de>

Diff:
---
 winsup/cygwin/crt0.c                     |  8 --------
 winsup/cygwin/lib/_cygwin_crt0_common.cc | 13 -------------
 2 files changed, 21 deletions(-)

diff --git a/winsup/cygwin/crt0.c b/winsup/cygwin/crt0.c
index ec7959a0f..1096e5897 100644
--- a/winsup/cygwin/crt0.c
+++ b/winsup/cygwin/crt0.c
@@ -4,11 +4,6 @@ This software is a copyrighted work licensed under the terms of the
 Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
 details. */
 
-/* In the following ifdef'd i386 code, the FPU precision is set to 80 bits
-   and all FPU exceptions are masked.  The former is needed to make long
-   doubles work correctly.  The latter causes the FPU to generate NaNs and
-   Infinities instead of signals for certain operations.  */
-
 #include "winlean.h"
 #include <sys/cygwin.h>
 
@@ -16,9 +11,6 @@ extern int main (int argc, char **argv);
 
 void cygwin_crt0 (int (*main) (int, char **));
 
-#ifdef __i386__
-__attribute__ ((force_align_arg_pointer))
-#endif
 void
 mainCRTStartup ()
 {
diff --git a/winsup/cygwin/lib/_cygwin_crt0_common.cc b/winsup/cygwin/lib/_cygwin_crt0_common.cc
index 025e2f2ee..c9e61ea63 100644
--- a/winsup/cygwin/lib/_cygwin_crt0_common.cc
+++ b/winsup/cygwin/lib/_cygwin_crt0_common.cc
@@ -61,9 +61,6 @@ extern int __dynamically_loaded;
 
 extern "C"
 {
-#ifdef __i386__
-char **environ;
-#endif
 int _fmode;
 
 extern char __RUNTIME_PSEUDO_RELOC_LIST__;
@@ -114,9 +111,6 @@ _cygwin_crt0_common (MainFunc f, per_process *u)
 
   u->ctors = &__CTOR_LIST__;
   u->dtors = &__DTOR_LIST__;
-#ifdef __i386__
-  u->envptr = &environ;
-#endif
   if (uwasnull)
     _impure_ptr = u->impure_ptr;	/* Use field initialized in newer DLLs. */
   else
@@ -168,17 +162,10 @@ _cygwin_crt0_common (MainFunc f, per_process *u)
   u->hmodule = GetModuleHandle (0);
 
   /* variables for fork */
-#ifdef __x86_64__
   u->data_start = &__data_start__;
   u->data_end = &__data_end__;
   u->bss_start = &__bss_start__;
   u->bss_end = &__bss_end__;
-#else
-  u->data_start = &_data_start__;
-  u->data_end = &_data_end__;
-  u->bss_start = &_bss_start__;
-  u->bss_end = &_bss_end__;
-#endif
   u->pseudo_reloc_start = &__RUNTIME_PSEUDO_RELOC_LIST__;
   u->pseudo_reloc_end = &__RUNTIME_PSEUDO_RELOC_LIST_END__;
   u->image_base = &_image_base__;