This fixes class field handling on x86-64.
Signed-off-by: Eduard - Gabriel Munteanu <eduard.munte...@linux360.ro>
---
arch/x86/insn-selector.brg | 85 ++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 85 insertions(+), 0 deletions(-)
diff --git a/arch/x86/insn-selector.brg b/arch/x86/insn-selector.brg
index d1e8449..f9995fc 100644
--- a/arch/x86/insn-selector.brg
+++ b/arch/x86/insn-selector.brg
@@ -883,6 +883,7 @@ reg: OP_LE(reg, reg) 2
binop_reg_reg_low(state, s, tree, INSN_CMP_REG_REG);
}
+%ifdef CONFIG_X86_32
reg: EXPR_CLASS_FIELD 1
{
struct expression *expr;
@@ -937,6 +938,46 @@ reg: EXPR_CLASS_FIELD 1
state->reg2));
}
}
+%else
+reg: EXPR_CLASS_FIELD 1
+{
+ struct expression *expr;
+ struct var_info *out;
+ struct insn *mov_insn;
+
+ struct vm_field *vmf;
+ struct vm_class *vmc;
+ enum vm_class_state vmc_state;
+
+ expr = to_expr(tree);
+
+ out = get_var(s->b_parent, J_LONG);
+ state->reg1 = out;
+
+ vmf = expr->class_field;
+ vmc = vmf->class;
+
+ vm_monitor_lock(&vmc->monitor);
+ vmc_state = vmc->state;
+ vm_monitor_unlock(&vmc->monitor);
+
+ if (vmc_state >= VM_CLASS_INITIALIZING) {
+ /* Class is already initialized; no need for fix-up. We also
+ * don't want the fixup if we're already inside the
+ * initializer. */
+ mov_insn = memdisp_reg_insn(INSN_MOV_MEMDISP_REG,
+ (unsigned long) vmc->static_values + vmf->offset, out);
+ } else {
+ mov_insn = memdisp_reg_insn(INSN_MOV_MEMDISP_REG,
+ (unsigned long) static_guard_page, out);
+
+ /* XXX: Check return value */
+ add_getstatic_fixup_site(mov_insn, vmf, s->b_parent);
+ }
+
+ select_insn(s, tree, mov_insn);
+}
+%endif
freg: EXPR_FLOAT_CLASS_FIELD 1
{
@@ -1868,6 +1909,7 @@ stmt: STMT_EXPRESSION(freg)
{
}
+%ifdef CONFIG_X86_32
stmt: STMT_STORE(EXPR_CLASS_FIELD, reg)
{
struct expression *store_dest;
@@ -1925,6 +1967,49 @@ stmt: STMT_STORE(EXPR_CLASS_FIELD, reg)
(unsigned long) vmc->static_values + vmf->offset + 4));
}
}
+%else
+stmt: STMT_STORE(EXPR_CLASS_FIELD, reg)
+{
+ struct expression *store_dest;
+ struct expression *store_src;
+ struct statement *stmt;
+ struct var_info *src;
+ struct insn *mov_insn;
+
+ struct vm_field *vmf;
+ struct vm_class *vmc;
+ enum vm_class_state vmc_state;
+
+ stmt = to_stmt(tree);
+ store_dest = to_expr(stmt->store_dest);
+ store_src = to_expr(stmt->store_src);
+
+ src = state->right->reg1;
+
+ vmf = store_dest->class_field;
+ vmc = vmf->class;
+
+ vm_monitor_lock(&vmc->monitor);
+ vmc_state = vmc->state;
+ vm_monitor_unlock(&vmc->monitor);
+
+ if (vmc_state >= VM_CLASS_INITIALIZING) {
+ /* Class is already initialized; no need for fix-up. We also
+ * don't want the fixup if we're already inside the
+ * initializer. */
+ mov_insn = reg_memdisp_insn(INSN_MOV_REG_MEMDISP,
+ src, (unsigned long) vmc->static_values + vmf->offset);
+ } else {
+ mov_insn = reg_memdisp_insn(INSN_MOV_REG_MEMDISP,
+ src, (unsigned long) static_guard_page);
+
+ /* XXX: Check return value */
+ add_putstatic_fixup_site(mov_insn, vmf, s->b_parent);
+ }
+
+ select_insn(s, tree, mov_insn);
+}
+%endif
stmt: STMT_STORE(EXPR_FLOAT_CLASS_FIELD, freg)
{
--
1.6.0.6
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