1 files changed, 26 insertions, 0 deletions

diff --git a/meta/recipes-devtools/gdb/gdb/kill_arm_map_symbols.patch b/meta/recipes-devtools/gdb/gdb/kill_arm_map_symbols.patch
new file mode 100644
index 0000000000..9fc45b9f2a
--- /dev/null
+++ b/meta/recipes-devtools/gdb/gdb/kill_arm_map_symbols.patch
@@ -0,0 +1,26 @@
+Upstream-Status: Inappropriate [embedded specific]
+
+Index: gdb-7.3/gdb/arm-tdep.c
+===================================================================
+--- gdb-7.3.orig/gdb/arm-tdep.c 2011-05-17 14:27:01.000000000 -0700
++++ gdb-7.3/gdb/arm-tdep.c      2011-08-05 22:29:58.784201850 -0700
+@@ -7806,6 +7806,19 @@
+ static void
+ arm_elf_make_msymbol_special(asymbol *sym, struct minimal_symbol *msym)
+ {
++
++    /* FIXME: We want gdb to ignore the ARM ELF mapping symbols when
++       displaying disassembly so we use this horrible hack here to
++       artifically set their address to the highest possible value.
++       This is wrong of course, and it prevents the symbols from being
++       used for their intended purpose - to distinguish between ARM
++       and THUMB code.  So we ought to find a better way to do this.  */
++    if (bfd_asymbol_name (sym)
++       && bfd_asymbol_name (sym)[0] == '$'
++       && bfd_asymbol_name (sym)[1] != 0
++       && bfd_asymbol_name (sym)[2] == 0)
++      SYMBOL_VALUE_ADDRESS(msym) = (CORE_ADDR) 0x7ffffffc;
++
+   if (ARM_SYM_BRANCH_TYPE (&((elf_symbol_type *)sym)->internal_elf_sym)
+       == ST_BRANCH_TO_THUMB)
+     MSYMBOL_SET_SPECIAL (msym);