NetCube-Systems-Austria/kumquat-buildroot
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

uclibc: allow thread_db to be built with C++

Browse Source 
gdb 7.12+ is compiled and linked with C++, therefore the thread_db
headers need to use extern "C", to be usable for C++ code.

Fixes:
 Issue when building gdbserver for m68k-coldfire:

thread-db.o: In function `thread_db_init()':
thread-db.c:(.text+0x5b6): undefined reference to `td_ta_new(ps_prochandle*, td_thragent**)'
thread-db.c:(.text+0x61e): undefined reference to `td_thr_get_info(td_thrhandle const*, td_thrinfo*)'
thread-db.c:(.text+0x632): undefined reference to `td_symbol_list()'
...

Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
Tested-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
This commit is contained in:
Waldemar Brodkorb 2017-08-05 12:49:00 +02:00 committed by Arnout Vandecappelle (Essensium/Mind)
parent c9f9b16a2f
commit c21fca53db
1 changed files with 72 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

72
package/uclibc/0001-fix-issues-with-gdb-8.0.patch Normal file
View File

@ -0,0 +1,72 @@
From 111f01d432d542a153c1cad83def3a6ab57df7af Mon Sep 17 00:00:00 2001
From: Waldemar Brodkorb <wbx@uclibc-ng.org>
Date: Sat, 5 Aug 2017 11:28:07 +0200
Subject: [PATCH] fix issues with gdb 8.0
GDB 8.0 is compiled and linked with g++, but the
linking of static targets (f.e. coldfire) fails,
without declaring the functions in thread_db.h
extern C.
The compilation of gdb errors out with:
thread-db.o: In function `thread_db_init()':
thread-db.c:(.text+0x5b6): undefined reference to `td_ta_new(ps_prochandle*, td_thragent**)'
thread-db.c:(.text+0x61e): undefined reference to `td_thr_get_info(td_thrhandle const*, td_thrinfo*)'
thread-db.c:(.text+0x632): undefined reference to `td_symbol_list()'
..
Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
---
libpthread/linuxthreads_db/thread_db.h | 7 +++++++
libpthread/nptl_db/thread_db.h | 7 +++++++
2 files changed, 14 insertions(+)
diff --git a/libpthread/linuxthreads_db/thread_db.h b/libpthread/linuxthreads_db/thread_db.h
index 13c30af..ec79f60 100644
--- a/libpthread/linuxthreads_db/thread_db.h
+++ b/libpthread/linuxthreads_db/thread_db.h
@@ -27,6 +27,9 @@
#include <sys/types.h>
#include <sys/procfs.h>
+#ifdef __cplusplus
+extern "C" {
+#endif
/* Error codes of the library. */
typedef enum
@@ -455,4 +458,8 @@ extern td_err_e td_thr_dbsuspend (const td_thrhandle_t *__th);
/* Resume execution of thread TH. */
extern td_err_e td_thr_dbresume (const td_thrhandle_t *__th);
+#ifdef __cplusplus
+}
+#endif
+
#endif /* thread_db.h */
diff --git a/libpthread/nptl_db/thread_db.h b/libpthread/nptl_db/thread_db.h
index 27ea69a..993842f 100644
--- a/libpthread/nptl_db/thread_db.h
+++ b/libpthread/nptl_db/thread_db.h
@@ -27,6 +27,9 @@
#include <sys/types.h>
#include <sys/procfs.h>
+#ifdef __cplusplus
+extern "C" {
+#endif
/* Error codes of the library. */
typedef enum
@@ -455,4 +458,8 @@ extern td_err_e td_thr_dbsuspend (const td_thrhandle_t *__th);
/* Resume execution of thread TH. */
extern td_err_e td_thr_dbresume (const td_thrhandle_t *__th);
+#ifdef __cplusplus
+}
+#endif
+
#endif /* thread_db.h */
--
2.1.4