[jit] Don't allocate memory for unused vreg

[mono.git] / mono / utils / mono-sigcontext.h

diff --git a/mono/utils/mono-sigcontext.h b/mono/utils/mono-sigcontext.h
index 05817a842f312a69e1c43381ec4899ad5f78c9c2..15106129b7212e85ba809c4a9a13b16332e0d18e 100644 (file)
--- a/mono/utils/mono-sigcontext.h
+++ b/mono/utils/mono-sigcontext.h
@@ -6,6 +6,10 @@
 #include <asm/sigcontext.h>
 #endif
 
+#ifdef HAVE_UCONTEXT_H
+#include <ucontext.h>
+#endif
+
 #ifdef HAVE_UNISTD_H
 #include <unistd.h>
 #endif
@@ -16,9 +20,6 @@
 
 #if defined(TARGET_X86)
 
-#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__APPLE__) || defined(__DragonFly__)
-#include <ucontext.h>
-#endif
 #if defined(__APPLE__)
 #include <AvailabilityMacros.h>
 #endif
@@ -87,7 +88,7 @@
        #define UCONTEXT_REG_EIP(ctx) (((ucontext_t*)(ctx))->uc_mcontext.gregs [EIP])
 #else
 
-#if defined(TARGET_ANDROID)
+#if defined(PLATFORM_ANDROID) && !defined(HAVE_UCONTEXT_H)
 /* No ucontext.h as of NDK v6b */
 typedef int greg_t;
 #define NGREG 19
@@ -154,10 +155,6 @@ typedef struct ucontext {
 
 #elif defined(TARGET_AMD64)
 
-#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
-#include <ucontext.h>
-#endif
-
 #if defined(__APPLE__)
        #define UCONTEXT_REG_RAX(ctx) (((ucontext_t*)(ctx))->uc_mcontext->__ss.__rax)
        #define UCONTEXT_REG_RBX(ctx) (((ucontext_t*)(ctx))->uc_mcontext->__ss.__rbx)
@@ -227,7 +224,7 @@ typedef struct ucontext {
        #define UCONTEXT_REG_R13(ctx) (((ucontext_t*)(ctx))->sc_r13)
        #define UCONTEXT_REG_R14(ctx) (((ucontext_t*)(ctx))->sc_r14)
        #define UCONTEXT_REG_R15(ctx) (((ucontext_t*)(ctx))->sc_r15)
-#else
+#elif !defined(HOST_WIN32)
 #define UCONTEXT_GREGS(ctx)    ((guint64*)&(((ucontext_t*)(ctx))->uc_mcontext.gregs))
 #endif