[rebase this later] Try to compile on windows as well

Signed-off-by: Ludvig Liljenberg <[email protected]>

Author: ludfjig

src/hyperlight_guest/build.rs

@@ -77,15 +77,7 @@ fn cargo_main() {
         feature = "libc",
         feature = "alloca"
     )) {
-        if is_pe {
-            cfg.define("hidden", "");
-            cfg.define("weak_alias(old, new) ", " ");
-            cfg.define("__DEFINED_va_list", None);
-            cfg.define("__DEFINED___isoc_va_list", None);
-        }
-        cfg.define("__x86_64__", None);
-        cfg.define("__LITTLE_ENDIAN__", None);
-        cfg.define("HYPERLIGHT", None);
+        cfg.define("HYPERLIGHT", None); // used in certain musl files for conditional compilation
 
         // silence compiler warnings
         cfg.flag("-Wno-unused-command-line-argument") // including .s files makes clang believe arguments are unused
@@ -99,6 +91,8 @@ fn cargo_main() {
             .flag("-Wno-string-plus-int");
 
         if is_pe {
+            cfg.flag("-Wno-unused-label");
+            cfg.flag("-Wno-unused-variable");
             cfg.compiler("clang-cl");
         } else {
             cfg.flag("-fPIC");

src/hyperlight_guest/third_party/libc/musl/arch/x86_64/bits/alltypes.h

@@ -15,7 +15,11 @@
 
 #ifndef __cplusplus
 #if defined(__NEED_wchar_t) && !defined(__DEFINED_wchar_t)
+#ifdef _MSC_VER
+typedef unsigned short wchar_t;
+#else
 typedef int wchar_t;
+#endif
 #define __DEFINED_wchar_t
 #endif
 

src/hyperlight_guest/third_party/libc/musl/arch/x86_64/bits/float.h

@@ -4,6 +4,22 @@
 #define FLT_EVAL_METHOD 0
 #endif
 
+#ifdef _MSC_VER
+#define LDBL_TRUE_MIN 4.9406564584124654e-324
+#define LDBL_MIN     2.2250738585072014e-308
+#define LDBL_MAX     1.7976931348623158e+308
+#define LDBL_EPSILON 2.2204460492503131e-016
+
+#define LDBL_MANT_DIG 53
+#define LDBL_MIN_EXP (-1021)
+#define LDBL_MAX_EXP 1024
+
+#define LDBL_DIG 	15
+#define LDBL_MIN_10_EXP (-307)
+#define LDBL_MAX_10_EXP308
+
+#define DECIMAL_DIG 17
+#else
 #define LDBL_TRUE_MIN 3.6451995318824746025e-4951L
 #define LDBL_MIN     3.3621031431120935063e-4932L
 #define LDBL_MAX     1.1897314953572317650e+4932L
@@ -18,3 +34,4 @@
 #define LDBL_MAX_10_EXP 4932
 
 #define DECIMAL_DIG 21
+#endif

src/hyperlight_guest/third_party/libc/musl/include/math.h

@@ -11,7 +11,7 @@ extern "C" {
 #define __NEED_double_t
 #include <bits/alltypes.h>
 
-#if 100*__GNUC__+__GNUC_MINOR__ >= 303
+#if 100*__GNUC__+__GNUC_MINOR__ >= 303 || defined (HYPERLIGHT)
 #define NAN       __builtin_nanf("")
 #define INFINITY  __builtin_inff()
 #else

src/hyperlight_guest/third_party/libc/musl/src/fenv/x86_64/fenv.s

@@ -1,5 +1,4 @@
 .global feclearexcept
-.type feclearexcept,@function
 feclearexcept:
 		# maintain exceptions in the sse mxcsr, clear x87 exceptions
 	mov %edi,%ecx
@@ -20,7 +19,6 @@ feclearexcept:
 	ret
 
 .global feraiseexcept
-.type feraiseexcept,@function
 feraiseexcept:
 	and $0x3f,%edi
 	stmxcsr -8(%rsp)
@@ -30,8 +28,6 @@ feraiseexcept:
 	ret
 
 .global __fesetround
-.hidden __fesetround
-.type __fesetround,@function
 __fesetround:
 	push %rax
 	xor %eax,%eax
@@ -49,7 +45,6 @@ __fesetround:
 	ret
 
 .global fegetround
-.type fegetround,@function
 fegetround:
 	push %rax
 	stmxcsr (%rsp)
@@ -59,15 +54,13 @@ fegetround:
 	ret
 
 .global fegetenv
-.type fegetenv,@function
 fegetenv:
 	xor %eax,%eax
 	fnstenv (%rdi)
 	stmxcsr 28(%rdi)
 	ret
 
 .global fesetenv
-.type fesetenv,@function
 fesetenv:
 	xor %eax,%eax
 	inc %rdi
@@ -86,7 +79,6 @@ fesetenv:
 	ret
 
 .global fetestexcept
-.type fetestexcept,@function
 fetestexcept:
 	and $0x3f,%edi
 	push %rax

src/hyperlight_guest/third_party/libc/musl/src/include/features.h

@@ -3,12 +3,9 @@
 
 #include "../../include/features.h"
 
-#ifndef _MSC_VER 
 #define weak __attribute__((__weak__))
 #define hidden __attribute__((__visibility__("hidden")))
-
 #define weak_alias(old, new) \
 	extern __typeof(old) new __attribute__((__weak__, __alias__(#old)))
-#endif
 
 #endif

src/hyperlight_guest/third_party/libc/musl/src/internal/stdio_impl.h

@@ -2,13 +2,15 @@
 #define _STDIO_IMPL_H
 
 #include <stdio.h>
+#ifndef HYPERLIGHT
 #include "syscall.h"
 
 #define UNGET 8
 
 #define FFINALLOCK(f) ((f)->lock>=0 ? __lockfile((f)) : 0)
 #define FLOCK(f) int __need_unlock = ((f)->lock>=0 ? __lockfile((f)) : 0)
 #define FUNLOCK(f) do { if (__need_unlock) __unlockfile((f)); } while (0)
+#endif // HYPERLIGHT
 
 #define F_PERM 1
 #define F_NORD 4
@@ -47,6 +49,11 @@ struct _IO_FILE {
 	struct __locale_struct *locale;
 };
 
+hidden int __toread(FILE *);
+hidden int __towrite(FILE *);
+int __uflow(FILE *);
+
+#ifndef HYPERLIGHT
 extern hidden FILE *volatile __stdin_used;
 extern hidden FILE *volatile __stdout_used;
 extern hidden FILE *volatile __stderr_used;
@@ -60,16 +67,13 @@ hidden size_t __stdout_write(FILE *, const unsigned char *, size_t);
 hidden off_t __stdio_seek(FILE *, off_t, int);
 hidden int __stdio_close(FILE *);
 
-hidden int __toread(FILE *);
-hidden int __towrite(FILE *);
-
 hidden void __stdio_exit(void);
 hidden void __stdio_exit_needed(void);
 
 #if defined(__PIC__) && (100*__GNUC__+__GNUC_MINOR__ >= 303)
 __attribute__((visibility("protected")))
 #endif
-int __overflow(FILE *, int), __uflow(FILE *);
+int __overflow(FILE *, int);
 
 hidden int __fseeko(FILE *, off_t, int);
 hidden int __fseeko_unlocked(FILE *, off_t, int);
@@ -110,3 +114,4 @@ hidden FILE *__fopen_rb_ca(const char *, FILE *, unsigned char *, size_t);
 hidden int __fclose_ca(FILE *);
 
 #endif
+#endif

src/hyperlight_guest/third_party/libc/musl/src/math/x86_64/acosl.s

@@ -1,7 +1,6 @@
 # see ../i386/acos.s
 
 .global acosl
-.type acosl,@function
 acosl:
 	fldt 8(%rsp)
 1:	fld %st(0)

src/hyperlight_guest/third_party/libc/musl/src/math/x86_64/asinl.s

@@ -1,5 +1,4 @@
 .global asinl
-.type asinl,@function
 asinl:
 	fldt 8(%rsp)
 1:	fld %st(0)

src/hyperlight_guest/third_party/libc/musl/src/math/x86_64/atan2l.s

@@ -1,5 +1,4 @@
 .global atan2l
-.type atan2l,@function
 atan2l:
 	fldt 8(%rsp)
 	fldt 24(%rsp)