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[RFA] Stabs: Ignore N_BNSYM/N_ENSYM entry types
- From: "Pierre Muller" <pierre dot muller at ics-cnrs dot unistra dot fr>
- To: <gdb-patches at sourceware dot org>
- Date: Thu, 2 Oct 2014 12:16:54 +0200
- Subject: [RFA] Stabs: Ignore N_BNSYM/N_ENSYM entry types
- Authentication-results: sourceware.org; auth=none
Trying to debug gdb with itself,
with "set complaints 1000",
I stumbled on the following complaints
Unknown symbol type 0x2e
or
Unknown symbol type 0x4e
It appears that those correspond to N_BNSYM and N_ENSYM,
which are MacOS extensions of stabs debugging format.
But these extensions have been used inside gcc probably
for a while already, see:
https://gcc.gnu.org/ml/gcc/2004-08/msg00157.html
As the only purpose of these entries is to allow for removal
of stabs information if the function is removed,
it can be safely ignored by GDB.
This patch simply adds those two entry types to the list
of ignored entry type in read_dbx_symtab function.
Is this OK?
Pierre Muller
2014-10-02 Pierre Muller <muller@sourceware.org>
* gdb/dbxread.c (read_dbx_symtab): Also ignore N_BNSYM/N_ENSYM.
diff --git a/gdb/dbxread.c b/gdb/dbxread.c
index fd7910c..2c3be20 100644
--- a/gdb/dbxread.c
+++ b/gdb/dbxread.c
@@ -2120,6 +2120,8 @@ read_dbx_symtab (struct objfile *objfile)
case N_SLINE:
case N_RSYM:
case N_PSYM:
+ case N_BNSYM:
+ case N_ENSYM:
case N_LBRAC:
case N_NSYMS: /* Ultrix 4.0: symbol count */
case N_DEFD: /* GNU Modula-2 */