Update Yasm to 1.2.0 (Yasm Part 1/3)

third_party/yasm/patched-yasm/modules/arch/x86/x86bc.c

Index: third_party/yasm/patched-yasm/modules/arch/x86/x86bc.c
===================================================================
--- third_party/yasm/patched-yasm/modules/arch/x86/x86bc.c	(revision 165590)
+++ third_party/yasm/patched-yasm/modules/arch/x86/x86bc.c	(working copy)
@@ -25,7 +25,6 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 #include <util.h>
-/*@unused@*/ RCSID("$Id: x86bc.c 2279 2010-01-19 07:57:43Z peter $");
 
 #include <libyasm.h>
 
@@ -44,6 +43,7 @@
                               long new_val, /*@out@*/ long *neg_thres,
                               /*@out@*/ long *pos_thres);
 static int x86_bc_insn_tobytes(yasm_bytecode *bc, unsigned char **bufp,
+                               unsigned char *bufstart,
                                void *d, yasm_output_value_func output_value,
                                /*@null@*/ yasm_output_reloc_func output_reloc);
 
@@ -56,6 +56,7 @@
                              long new_val, /*@out@*/ long *neg_thres,
                              /*@out@*/ long *pos_thres);
 static int x86_bc_jmp_tobytes(yasm_bytecode *bc, unsigned char **bufp,
+                              unsigned char *bufstart,
                               void *d, yasm_output_value_func output_value,
                               /*@null@*/ yasm_output_reloc_func output_reloc);
 
@@ -66,7 +67,7 @@
                                   yasm_bc_add_span_func add_span,
                                   void *add_span_data);
 static int x86_bc_jmpfar_tobytes
-    (yasm_bytecode *bc, unsigned char **bufp, void *d,
+    (yasm_bytecode *bc, unsigned char **bufp, unsigned char *bufstart, void *d,
      yasm_output_value_func output_value,
      /*@null@*/ yasm_output_reloc_func output_reloc);
 
@@ -189,6 +190,7 @@
     x86_ea->ea.pc_rel = 0;
     x86_ea->ea.not_pc_rel = 0;
     x86_ea->ea.data_len = 0;
+    x86_ea->vsib_mode = 0;
     x86_ea->modrm = 0;
     x86_ea->valid_modrm = 0;
     x86_ea->need_modrm = 0;
@@ -380,6 +382,8 @@
     fprintf(f, "%*sNoSplit=%u\n", indent_level, "", (unsigned int)ea->nosplit);
     fprintf(f, "%*sSegmentOv=%02x\n", indent_level, "",
             (unsigned int)x86_ea->ea.segreg);
+    fprintf(f, "%*sVSIBMode=%u\n", indent_level, "",
+            (unsigned int)x86_ea->vsib_mode);
     fprintf(f, "%*sModRM=%03o ValidRM=%u NeedRM=%u\n", indent_level, "",
             (unsigned int)x86_ea->modrm, (unsigned int)x86_ea->valid_modrm,
             (unsigned int)x86_ea->need_modrm);
@@ -800,14 +804,14 @@
 }
 
 static int
-x86_bc_insn_tobytes(yasm_bytecode *bc, unsigned char **bufp, void *d,
+x86_bc_insn_tobytes(yasm_bytecode *bc, unsigned char **bufp,
+                    unsigned char *bufstart, void *d,
                     yasm_output_value_func output_value,
                     /*@unused@*/ yasm_output_reloc_func output_reloc)
 {
     x86_insn *insn = (x86_insn *)bc->contents;
     /*@null@*/ x86_effaddr *x86_ea = (x86_effaddr *)insn->x86_ea;
     yasm_value *imm = insn->imm;
-    unsigned char *bufp_orig = *bufp;
 
     /* Prefixes */
     x86_common_tobytes(&insn->common, bufp,
@@ -874,7 +878,7 @@
                                          yasm_expr_int(delta), bc->line);
             }
             if (output_value(&x86_ea->ea.disp, *bufp, disp_len,
-                             (unsigned long)(*bufp-bufp_orig), bc, 1, d))
+                             (unsigned long)(*bufp-bufstart), bc, 1, d))
                 return 1;
             *bufp += disp_len;
         }
@@ -892,7 +896,7 @@
             imm_len = 1;
         } else
             imm_len = imm->size/8;
-        if (output_value(imm, *bufp, imm_len, (unsigned long)(*bufp-bufp_orig),
+        if (output_value(imm, *bufp, imm_len, (unsigned long)(*bufp-bufstart),
                          bc, 1, d))
             return 1;
         *bufp += imm_len;
@@ -902,14 +906,14 @@
 }
 
 static int
-x86_bc_jmp_tobytes(yasm_bytecode *bc, unsigned char **bufp, void *d,
+x86_bc_jmp_tobytes(yasm_bytecode *bc, unsigned char **bufp,
+                   unsigned char *bufstart, void *d,
                    yasm_output_value_func output_value,
                    /*@unused@*/ yasm_output_reloc_func output_reloc)
 {
     x86_jmp *jmp = (x86_jmp *)bc->contents;
     unsigned char opersize;
     unsigned int i;
-    unsigned char *bufp_orig = *bufp;
     /*@only@*/ yasm_intnum *delta;
 
     /* Prefixes */
@@ -944,7 +948,7 @@
             jmp->target.size = 8;
             jmp->target.sign = 1;
             if (output_value(&jmp->target, *bufp, 1,
-                             (unsigned long)(*bufp-bufp_orig), bc, 1, d))
+                             (unsigned long)(*bufp-bufstart), bc, 1, d))
                 return 1;
             *bufp += 1;
             break;
@@ -976,7 +980,7 @@
             jmp->target.size = i*8;
             jmp->target.sign = 1;
             if (output_value(&jmp->target, *bufp, i,
-                             (unsigned long)(*bufp-bufp_orig), bc, 1, d))
+                             (unsigned long)(*bufp-bufstart), bc, 1, d))
                 return 1;
             *bufp += i;
             break;
@@ -989,13 +993,13 @@
 }
 
 static int
-x86_bc_jmpfar_tobytes(yasm_bytecode *bc, unsigned char **bufp, void *d,
+x86_bc_jmpfar_tobytes(yasm_bytecode *bc, unsigned char **bufp,
+                      unsigned char *bufstart, void *d,
                       yasm_output_value_func output_value,
                       /*@unused@*/ yasm_output_reloc_func output_reloc)
 {
     x86_jmpfar *jmpfar = (x86_jmpfar *)bc->contents;
     unsigned int i;
-    unsigned char *bufp_orig = *bufp;
     unsigned char opersize;
 
     x86_common_tobytes(&jmpfar->common, bufp, 0);
@@ -1009,12 +1013,12 @@
     i = (opersize == 16) ? 2 : 4;
     jmpfar->offset.size = i*8;
     if (output_value(&jmpfar->offset, *bufp, i,
-                     (unsigned long)(*bufp-bufp_orig), bc, 1, d))
+                     (unsigned long)(*bufp-bufstart), bc, 1, d))
         return 1;
     *bufp += i;
     jmpfar->segment.size = 16;
     if (output_value(&jmpfar->segment, *bufp, 2,
-                     (unsigned long)(*bufp-bufp_orig), bc, 1, d))
+                     (unsigned long)(*bufp-bufstart), bc, 1, d))
         return 1;
     *bufp += 2;