various stuff

win32/Makefile ("for cygwin") removed
- On cygwin, the normal ./configure && make can be used with either
  cygwin's "GCC for Win32 Toolchain"
      ./configure --cross-prefix=i686-w64-mingw32-
  or with an existing tcc:
      ./configure --cc=<old-tccdir>/tcc.exe

tcctest.c:
- exclude test_high_clobbers() on _WIN64 (does not work)

tests2/95_bitfield.c:
- use 'signed char' for ARM (where default 'char' is unsigned)

tests:
- remove -I "expr" diff option to allow tests with
  busybox-diff.

libtcc.c, tcc.c:
- removed -iwithprefix option.  It is supposed to be
  combined with -iprefix which we don't have either.

tccgen.c:
- fix assignments and return of 'void', as in
     void f() {
         void *p, *q;
         *p = *q:
         return *p;
     }
  This appears to be allowed but should do nothing.

tcc.h, libtcc.c, tccpp.c:
- Revert "Introduce VIP sysinclude paths which are always searched first"
  This reverts commit 1d5e386b0a78393ac6b670c209a185849ec798a1.

  The patch was giving tcc's system includes priority over -I which
  is not how it should be.

tccelf.c:
- add DT_TEXTREL tag only if text relocations are actually
  used (which is likely not the case on x86_64)
- prepare_dynamic_rel(): avoid relocation of unresolved
  (weak) symbols

tccrun.c:
- for HAVE_SELINUX, use two mappings to the same (real) file.
  (it was so once except the RX mapping wasn't used at all).

tccpe.c:
- fix relocation constant used for x86_64 (by Andrei E. Warentin)
- #ifndef _WIN32 do "chmod 755 ..." to get runnable exes on cygwin.

tccasm.c:
- keep forward asm labels static, otherwise they will endup
  in dynsym eventually.

configure, Makefile:
- mingw32: respect ./configure options --bindir --docdir --libdir
- allow overriding tcc when building libtcc1.a and libtcc.def with
      make XTCC=<tcc program to use>
- use $(wildcard ...) for install to allow installing just
  a cross compiler for example
      make cross-arm
      make install
- use name <target>-libtcc1.a

build-tcc.bat:
- add  options: -clean, -b bindir

1 files changed, 6 insertions, 15 deletions

diff --git a/win32/lib/crt1.c b/win32/lib/crt1.c
index 53e5545..0e04fc0 100644
--- a/win32/lib/crt1.c
+++ b/win32/lib/crt1.c
@@ -16,11 +16,6 @@
 #define _PC_53          0x00010000 // 53 bits
 #define _PC_64          0x00000000 // 64 bits
 
-typedef struct
-{
-    int newmode;
-} _startupinfo;
-
 #ifdef _UNICODE
 #define __tgetmainargs __wgetmainargs
 #define _tstart _wstart
@@ -33,6 +28,7 @@ typedef struct
 #define _runtmain _runmain
 #endif
 
+typedef struct { int newmode; } _startupinfo;
 int __cdecl __tgetmainargs(int *pargc, _TCHAR ***pargv, _TCHAR ***penv, int globb, _startupinfo*);
 void __cdecl __set_app_type(int apptype);
 unsigned int __cdecl _controlfp(unsigned int new_value, unsigned int mask);
@@ -44,23 +40,19 @@ int _dowildcard;
 void _tstart(void)
 {
     __TRY__
-    int ret;
-    _startupinfo start_info;
+    _startupinfo start_info = {0};
 
     // Sets the current application type
     __set_app_type(_CONSOLE_APP);
 
     // Set default FP precision to 53 bits (8-byte double)
-    // _MCW_PC (Precision control) is not supported on
-    // the ARM and x64 architectures
-#ifdef __i386
+    // _MCW_PC (Precision control) is not supported on ARM
+#if defined __i386__ || defined __x86_64__
     _controlfp(_PC_53, _MCW_PC);
 #endif
 
-    start_info.newmode = 0;
     __tgetmainargs( &__argc, &__targv, &_tenviron, _dowildcard, &start_info);
-    ret = _tmain(__argc, __targv, _tenviron);
-    exit(ret);
+    exit(_tmain(__argc, __targv, _tenviron));
 }
 
 int _runtmain(int argc, /* as tcc passed in */ char **argv)
@@ -78,8 +70,7 @@ int _runtmain(int argc, /* as tcc passed in */ char **argv)
     __argc = argc;
     __targv = argv;
 #endif
-
-#ifdef __i386
+#if defined __i386__ || defined __x86_64__
     _controlfp(_PC_53, _MCW_PC);
 #endif
     return _tmain(__argc, __targv, _tenviron);