Output proper local lables (starting with .L/L) for the PIC base, switch...

Output proper local lables (starting with .L/L) for the PIC base, switch tables and stabs text marker, too.

[r27152]

ir/be/arm/bearch_arm.c

@@ -714,7 +714,7 @@ static arch_env_t *arm_init(FILE *file_handle)
 
 	/* needed for the debug support */
 	be_gas_emit_switch_section(GAS_SECTION_TEXT);
-	be_emit_cstring(".Ltext0:\n");
+	be_emit_irprintf("%stext0:\n", be_gas_get_private_prefix());
 	be_emit_write_line();
 
 	inited = 1;

ir/be/begnuas.c

@@ -1382,26 +1382,23 @@ static void emit_indirect_symbol(const ir_entity *entity, be_gas_section_t secti
 	}
 }
 
-static void emit_private_prefix(void)
+char const *be_gas_get_private_prefix(void)
 {
-	if (be_gas_object_file_format == OBJECT_FILE_FORMAT_MACH_O) {
-		be_emit_char('L');
-	} else {
-		be_emit_cstring(".L");
-	}
+	return
+		be_gas_object_file_format == OBJECT_FILE_FORMAT_MACH_O ? "L" :
+		".L";
 }
 
 void be_gas_emit_entity(const ir_entity *entity)
 {
 	if (entity->type == firm_code_type) {
 		ir_label_t label = get_entity_label(entity);
-		emit_private_prefix();
-		be_emit_irprintf("_%lu", label);
+		be_emit_irprintf("%s_%lu", be_gas_get_private_prefix(), label);
 		return;
 	}
 
 	if (get_entity_visibility(entity) == ir_visibility_private) {
-		emit_private_prefix();
+		be_emit_string(be_gas_get_private_prefix());
 	}
 	be_emit_ident(get_entity_ld_ident(entity));
 }
@@ -1412,8 +1409,7 @@ void be_gas_emit_block_name(const ir_node *block)
 		ir_entity *entity = get_Block_entity(block);
 		be_gas_emit_entity(entity);
 	} else {
-		emit_private_prefix();
-		be_emit_irprintf("%ld", get_irn_node_nr(block));
+		be_emit_irprintf("%s%ld", be_gas_get_private_prefix(), get_irn_node_nr(block));
 	}
 }
 

ir/be/begnuas.h

@@ -86,6 +86,8 @@ void be_gas_emit_function_prolog(const ir_entity *entity,
 
 void be_gas_emit_function_epilog(const ir_entity *entity);
 
+char const *be_gas_get_private_prefix(void);
+
 /**
  * emit ld_ident of an entity and performs additional mangling if necessary.
  * (mangling is necessary for ir_visibility_private for example).

ir/be/bestabs.c

@@ -45,6 +45,7 @@
 #include "bemodule.h"
 #include "beemitter.h"
 #include "dbginfo.h"
+#include "begnuas.h"
 
 /* Non-Stab Symbol and Stab Symbol Types */
 enum stabs_types {
@@ -623,7 +624,7 @@ static void stabs_so(dbg_handle *handle, const char *filename)
 {
 	stabs_handle *h = (stabs_handle *)handle;
 	h->main_file = h->curr_file = filename;
-	be_emit_irprintf("\t.stabs\t\"%s\",%d,0,0,.Ltext0\n", filename, N_SO);
+	be_emit_irprintf("\t.stabs\t\"%s\",%d,0,0,%stext0\n", filename, N_SO, be_gas_get_private_prefix());
 	be_emit_write_line();
 }  /* stabs_so */
 

ir/be/ia32/bearch_ia32.c

@@ -1710,7 +1710,7 @@ static arch_env_t *ia32_init(FILE *file_handle)
 
 	/* needed for the debug support */
 	be_gas_emit_switch_section(GAS_SECTION_TEXT);
-	be_emit_cstring(".Ltext0:\n");
+	be_emit_irprintf("%stext0:\n", be_gas_get_private_prefix());
 	be_emit_write_line();
 
 	return &isa->arch_env;

ir/be/ia32/ia32_emitter.c

@@ -215,7 +215,7 @@ static const arch_register_t *get_out_reg(const ir_node *irn, int pos)
 static char *get_unique_label(char *buf, size_t buflen, const char *prefix)
 {
 	static unsigned long id = 0;
-	snprintf(buf, buflen, "%s%lu", prefix, ++id);
+	snprintf(buf, buflen, "%s%s%lu", be_gas_get_private_prefix(), prefix, ++id);
 	return buf;
 }
 
@@ -1283,7 +1283,7 @@ static void generate_jump_table(jmp_tbl_t *tbl, const ir_node *node)
 	const ir_edge_t    *edge;
 
 	/* fill the table structure */
-	get_unique_label(tbl->label, SNPRINTF_BUF_LEN, ".TBL_");
+	get_unique_label(tbl->label, SNPRINTF_BUF_LEN, "TBL_");
 	tbl->defProj      = NULL;
 	tbl->num_branches = get_irn_n_edges(node) - 1;
 	tbl->branches     = XMALLOCNZ(branch_t, tbl->num_branches);
@@ -2250,7 +2250,7 @@ void ia32_gen_routine(ia32_code_gen_t *ia32_cg, ir_graph *irg)
 
 	ia32_register_emitters();
 
-	get_unique_label(pic_base_label, sizeof(pic_base_label), ".PIC_BASE");
+	get_unique_label(pic_base_label, sizeof(pic_base_label), "PIC_BASE");
 
 	be_dbg_method_begin(entity, be_abi_get_stack_layout(cg->birg->abi));
 	be_gas_emit_function_prolog(entity, ia32_cg_config.function_alignment);