x86arch.c, x86id.c: Explicitly cast to unsigned char.

stabs-dbgfmt.c: Check for overflow, cast to unsigned short.

svn path=/trunk/yasm/; revision=1729

modules/arch/x86/x86arch.c

@@ -109,9 +109,9 @@ x86_set_var(yasm_arch *arch, const char *var, unsigned long val)
 {
     yasm_arch_x86 *arch_x86 = (yasm_arch_x86 *)arch;
     if (yasm__strcasecmp(var, "mode_bits") == 0)
-	arch_x86->mode_bits = val;
+	arch_x86->mode_bits = (unsigned char)val;
     else if (yasm__strcasecmp(var, "force_strict") == 0)
-	arch_x86->force_strict = val;
+	arch_x86->force_strict = (unsigned char)val;
     else
 	return 1;
     return 0;

modules/arch/x86/x86id.c

@@ -2998,7 +2998,7 @@ yasm_x86__finalize_insn(yasm_arch *arch, yasm_bytecode *bc,
 	if (num_segregs > 1)
 	    yasm_warn_set(YASM_WARN_GENERAL,
 			  N_("multiple segment overrides, using leftmost"));
-	insn->special_prefix = segregs[num_segregs-1]>>8;
+	insn->special_prefix = (unsigned char)(segregs[num_segregs-1]>>8);
     } else if (num_segregs > 0)
 	yasm_internal_error(N_("unhandled segment prefix"));
 

modules/dbgfmts/stabs/stabs-dbgfmt.c

@@ -372,8 +372,6 @@ stabs_dbgfmt_generate(yasm_dbgfmt *dbgfmt, yasm_errwarns *errwarns)
 	}
     }
 
-
-
     /* initial pseudo-stab */
     stab = yasm_xmalloc(sizeof(stabs_stab));
     dbgbc = yasm_bc_create_common(&stabs_bc_stab_callback, stab, 0);
@@ -407,7 +405,12 @@ stabs_dbgfmt_generate(yasm_dbgfmt *dbgfmt, yasm_errwarns *errwarns)
     stab->bcstr = filebc;
     stab->type = N_UNDF;
     stab->other = 0;
-    stab->desc = info.stabcount;
+    if (info.stabcount > 0xffff) {
+	yasm_warn_set(YASM_WARN_GENERAL, N_("over 65535 stabs"));
+	yasm_errwarn_propagate(errwarns, 0);
+	stab->desc = 0xffff;
+    } else
+	stab->desc = (unsigned short)info.stabcount;
 }
 
 static int