PR symtab/17391 gdb internal error: assertion fails in regcache.c:178

[deliverable/binutils-gdb.git] / gdb / gdbarch.sh

diff --git a/gdb/gdbarch.sh b/gdb/gdbarch.sh
index ce9d71d19beb522d71e5306e45e8a0686a5f4253..236ce41b473cf0603e67cd8c37547a25c2e14fbd 100755 (executable)
--- a/gdb/gdbarch.sh
+++ b/gdb/gdbarch.sh
@@ -461,6 +461,7 @@ m:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr::no_op_reg_to_regnum::0
 # Convert from an sdb register number to an internal gdb register number.
 m:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr::no_op_reg_to_regnum::0
 # Provide a default mapping from a DWARF2 register number to a gdb REGNUM.
+# Return -1 for bad REGNUM.  Note: Several targets get this wrong.
 m:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr::no_op_reg_to_regnum::0
 m:const char *:register_name:int regnr:regnr::0