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--- mono/mini/mini-amd64.c.orig Sun Oct 30 14:33:12 2005
+++ mono/mini/mini-amd64.c Sun Nov 13 18:39:16 2005
@@ -13,6 +13,7 @@
#include "mini.h"
#include <string.h>
#include <math.h>
+#include <ucontext.h>
#include <mono/metadata/appdomain.h>
#include <mono/metadata/debug-helpers.h>
@@ -49,6 +49,10 @@
#define ARGS_OFFSET 16
#define GP_SCRATCH_REG AMD64_R11
+#ifndef MAP_ANONYMOUS
+#define MAP_ANONYMOUS MAP_ANON
+#endif
+
/*
* AMD64 register usage:
* - callee saved registers are used for global register allocation
@@ -4639,6 +4643,7 @@
#define IS_REX(inst) (((inst) >= 0x40) && ((inst) <= 0x4f))
+
static int reg_to_ucontext_reg [] = {
REG_RAX, REG_RCX, REG_RDX, REG_RBX, REG_RSP, REG_RBP, REG_RSI, REG_RDI,
REG_R8, REG_R9, REG_R10, REG_R11, REG_R12, REG_R13, REG_R14, REG_R15,
@@ -4650,27 +4655,37 @@
* integer overflow.
*/
gboolean
-mono_arch_is_int_overflow (void *sigctx, void *info)
+mono_arch_is_int_overflow (void *sigctx, void *info)
{
- ucontext_t *ctx = (ucontext_t*)sigctx;
- guint8* rip;
- int reg;
-
- rip = (guint8*)ctx->uc_mcontext.gregs [REG_RIP];
+ ucontext_t *ctx = (ucontext_t*)sigctx;
+ guint8* rip;
+ int reg;
+
+#if defined(__FreeBSD__)
+ __register_t *gregs = (__register_t *) &ctx->uc_mcontext;
+ rip = (guint8*) gregs[REG_RIP];
+#else
+ rip = (guint8*) ctx->uc_mcontext.gregs [REG_RIP];
+#endif
- if (IS_REX (rip [0])) {
- reg = amd64_rex_b (rip [0]);
- rip ++;
+ if (IS_REX (rip [0])) {
+ reg = amd64_rex_b (rip [0]);
+ rip ++;
}
else
- reg = 0;
+ reg = 0;
- if ((rip [0] == 0xf7) && (x86_modrm_mod (rip [1]) == 0x3) && (x86_modrm_reg (rip [1]) == 0x7)) {
- /* idiv REG */
- reg += x86_modrm_rm (rip [1]);
+ if ((rip [0] == 0xf7) && (x86_modrm_mod (rip [1]) == 0x3) && (x86_modrm_reg (rip [1]) == 0x7)) {
+ /* idiv REG */
+ reg += x86_modrm_rm (rip [1]);
- if (ctx->uc_mcontext.gregs [reg_to_ucontext_reg [reg]] == -1)
+#if defined(__FreeBSD__)
+ if (gregs[reg_to_ucontext_reg[reg]] == -1)
+ return TRUE;
+#else
+ if (ctx->uc_mcontext.gregs [reg_to_ucontext_reg [reg]] == -1)
return TRUE;
+#endif
}
return FALSE;
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