added GNU_FLAVOUR_YASM to support the YASM assembler

[r17127]

ir/be/begnuas.c

@@ -76,6 +76,14 @@ static const char *get_section_name(be_gas_section_t section) {
 			".section\t.bss",
 			".section\t.tbss,\"awT\",@nobits",
 			".section\t.ctors,\"aw\",@progbits"
+		},
+		{
+			".section\t.text",
+				".section\t.data",
+				".section\t.rodata",
+				".section\t.bss",
+				".section\t.tbss,\"awT\",@nobits",
+				".section\t.ctors,\"aw\",@progbits"
 		}
 	};
 
@@ -676,13 +684,18 @@ static void dump_global(be_gas_decl_env_t *env, ir_entity *ent, int emit_commons
 	}
 
 	if (variability == variability_uninitialized) {
-		if(emit_as_common) {
-			if (be_gas_flavour == GAS_FLAVOUR_NORMAL)
+		if (emit_as_common) {
+			switch (be_gas_flavour) {
+			case GAS_FLAVOUR_NORMAL:
+			case GAS_FLAVOUR_YASM:
 				obstack_printf(obst, "\t.comm %s,%u,%u\n",
 					ld_name, get_type_size_bytes(type), align);
-			else
+				break;
+			case GAS_FLAVOUR_MINGW:
 				obstack_printf(obst, "\t.comm %s,%u # %u\n",
 					ld_name, get_type_size_bytes(type), align);
+				break;
+			}
 		} else {
 			obstack_printf(obst, "\t.zero %u\n", get_type_size_bytes(type));
 		}

ir/be/begnuas.h

@@ -49,7 +49,8 @@ typedef enum section_t {
 typedef enum asm_flavour_t {
 	GAS_FLAVOUR_NORMAL = 0,  /**< normal gas (ELF) */
 	GAS_FLAVOUR_MINGW  = 1,  /**< MinGW variant (no-ELF) */
-	GAS_FLAVOUR_MAX    = 2
+	GAS_FLAVOUR_YASM   = 2,  /**< YASM GNU parser */
+	GAS_FLAVOUR_MAX    = 3
 } be_gas_flavour_t;
 
 /** The variable where the GAS dialect is stored. */

ir/be/ia32/bearch_ia32.c

@@ -2085,6 +2085,7 @@ static const backend_params *ia32_get_libfirm_params(void) {
 static const lc_opt_enum_int_items_t gas_items[] = {
 	{ "normal",  GAS_FLAVOUR_NORMAL },
 	{ "mingw",   GAS_FLAVOUR_MINGW  },
+	{ "yasm",    GAS_FLAVOUR_YASM   },
 	{ NULL,      0 }
 };
 

ir/be/ia32/ia32_emitter.c

@@ -351,6 +351,8 @@ void ia32_emit_function_object(const char *name)
 		be_emit_cstring(";\t.scl\t2;\t.type\t32;\t.endef\n");
 		be_emit_write_line();
 		break;
+	case GAS_FLAVOUR_YASM:
+		break;
 	default:
 		break;
 	}
@@ -368,6 +370,9 @@ void ia32_emit_function_size(const char *name)
 		be_emit_char('\n');
 		be_emit_write_line();
 		break;
+	case GAS_FLAVOUR_MINGW:
+	case GAS_FLAVOUR_YASM:
+		break;
 	default:
 		break;
 	}