Attachment 145505 Details for Bug 140532 – Andreas Schwab's original imported PPC .eh_frame support patch.

[patch] Andreas Schwab's original imported PPC .eh_frame support patch.

gdb-6.5-bz140532-ppc-eh_frame-regnum.patch (text/plain), 2.92 KB, created by Jan Kratochvil on 2007-01-13 00:32:15 UTC

(hide)

Description:

Filename:

MIME Type:

Creator: Jan Kratochvil

Created: 2007-01-13 00:32:15 UTC

Size: 2.92 KB

patch

obsolete

>https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=140532
>
>
>2006-05-09  Andreas Schwab  <schwab@suse.de>
>
>	* rs6000-tdep.c: Include "dwarf2-frame.h".
>	(rs6000_eh_frame_regnum): Define.
>	(rs6000_gdbarch_init): Enable use of DWARF CFI frame unwinder.
>	Register rs6000_eh_frame_regnum.
>
>	* Makefile.in (rs6000-tdep.o): Update dependencies.
>
>
>http://sourceware.org/ml/gdb-patches/2006-05/msg00341.html
>	Selectively enabling them on platforms that are unlikely to have ever
>	used GCC versions before 3.4 should be fine.
>
>
>--- ./gdb/Makefile.in	5 May 2006 22:39:12 -0000	1.812
>+++ ./gdb/Makefile.in	9 May 2006 14:10:40 -0000
>@@ -2515,7 +2515,7 @@ rs6000-tdep.o: rs6000-tdep.c $(defs_h) $
> 	$(reggroups_h) $(libbfd_h) $(coff_internal_h) $(libcoff_h) \
> 	$(coff_xcoff_h) $(libxcoff_h) $(elf_bfd_h) $(solib_svr4_h) \
> 	$(ppc_tdep_h) $(gdb_assert_h) $(dis_asm_h) $(trad_frame_h) \
>-	$(frame_unwind_h) $(frame_base_h) $(rs6000_tdep_h)
>+	$(frame_unwind_h) $(frame_base_h) $(rs6000_tdep_h) $(dwarf2_frame_h)
> rs6000-aix-tdep.o: rs6000-aix-tdep.c $(defs_h) $(osabi_h) $(rs6000_tdep_h)
> s390-nat.o: s390-nat.c $(defs_h) $(tm_h) $(regcache_h) $(inferior_h) \
> 	$(s390_tdep_h) $(target_h) $(linux_nat_h)
>--- ./gdb/rs6000-tdep.c	23 Apr 2006 14:15:01 -0000	1.258
>+++ ./gdb/rs6000-tdep.c	9 May 2006 14:10:15 -0000
>@@ -40,6 +40,7 @@
> #include "sim-regno.h"
> #include "gdb/sim-ppc.h"
> #include "reggroups.h"
>+#include "dwarf2-frame.h"
> 
> #include "libbfd.h"		/* for bfd_default_set_arch_mach */
> #include "coff/internal.h"	/* for libcoff.h */
>@@ -2243,6 +2244,40 @@ rs6000_dwarf2_reg_to_regnum (int num)
> }
> 
> 
>+/* Convert a .eh_frame register number to a Dwarf 2 register number.  */
>+static int
>+rs6000_eh_frame_regnum (struct gdbarch *gdbarch, int num)
>+{
>+  if (0 <= num && num <= 63)	/* r0-r31,fp0-fp31 */
>+    return num;
>+  else if (68 <= num && num <= 75) /* cr0-cr8 */
>+    return num - 68 + 86;
>+  else if (77 <= num && num <= 108) /* vr0-vr31 */
>+    return num - 77 + 1124;
>+  else
>+    switch (num)
>+      {
>+      case 64: /* mq */
>+	return 100;
>+      case 65: /* lr */
>+	return 108;
>+      case 66: /* ctr */
>+	return 109;
>+      case 76: /* xer */
>+	return 101;
>+      case 109: /* vrsave */
>+	return 356;
>+      case 110: /* vscr */
>+	return 67;
>+      case 111: /* spe_acc */
>+	return 99;
>+      case 112: /* spefscr */
>+	return 612;
>+      default:
>+	return num;
>+      }
>+}
>+
> static void
> rs6000_store_return_value (struct type *type,
>                            struct regcache *regcache,
>@@ -3461,6 +3496,10 @@ rs6000_gdbarch_init (struct gdbarch_info
>   /* Helpers for function argument information.  */
>   set_gdbarch_fetch_pointer_argument (gdbarch, rs6000_fetch_pointer_argument);
> 
>+  /* Hook in the DWARF CFI frame unwinder.  */
>+  frame_unwind_append_sniffer (gdbarch, dwarf2_frame_sniffer);
>+  dwarf2_frame_set_eh_frame_regnum (gdbarch, rs6000_eh_frame_regnum);
>+
>   /* Hook in ABI-specific overrides, if they have been registered.  */
>   gdbarch_init_osabi (info, gdbarch);
>

Actions: View | Diff

Attachments on bug 140532: 144612 | 144613 | 145505 | 145506 | 145513 | 230151