Patch below makes gcc emit the resuired assembly directives for c6x unwinding
tables, same as ARM and IA64. This fixes most of the unwinding related
failures.
Tested on c6x-elf
Ok?
Paul
2011-10-03 Paul Brook <p...@codesourcery.com>
* config/c6x/c6x.c (c6x_asm_emit_except_personality,
c6x_asm_init_sections): New functions.
(TARGET_ASM_EMIT_EXCEPT_PERSONALITY, TARGET_ASM_INIT_SECTIONS):
Define.
Index: gcc/config/c6x/c6x.c
===================================================================
--- gcc/config/c6x/c6x.c (revision 179178)
+++ gcc/config/c6x/c6x.c (working copy)
@@ -5625,6 +5625,26 @@ c6x_debug_unwind_info (void)
return default_debug_unwind_info ();
}
+
+/* Implement TARGET_ASM_EMIT_EXCEPT_PERSONALITY. */
+
+static void
+c6x_asm_emit_except_personality (rtx personality)
+{
+ fputs ("\t.personality\t", asm_out_file);
+ output_addr_const (asm_out_file, personality);
+ fputc ('\n', asm_out_file);
+}
+
+/* Use a special assembly directive rather than a regular setion for
+ unwind table data. */
+
+static void
+c6x_asm_init_sections (void)
+{
+ exception_section = get_unnamed_section (0, output_section_asm_op,
+ "\t.handlerdata");
+}
/* Target Structure. */
@@ -5769,6 +5789,12 @@ c6x_debug_unwind_info (void)
#undef TARGET_ARM_EABI_UNWINDER
#define TARGET_ARM_EABI_UNWINDER true
+#undef TARGET_ASM_EMIT_EXCEPT_PERSONALITY
+#define TARGET_ASM_EMIT_EXCEPT_PERSONALITY c6x_asm_emit_except_personality
+
+#undef TARGET_ASM_INIT_SECTIONS
+#define TARGET_ASM_INIT_SECTIONS c6x_asm_init_sections
+
#undef TARGET_DEBUG_UNWIND_INFO
#define TARGET_DEBUG_UNWIND_INFO c6x_debug_unwind_info
