[Buildroot] [PATCH v4] gdb: enable simulator support for host build
Waldemar Brodkorb
wbx at openadk.org
Tue May 31 21:01:36 UTC 2016
Add an option to enable GDB simulator support, so
it can be used to test some no-MMU systems.
Newer GDB Blackfin Simulator need a workaround for in-tree compile.
It doesn't break for older Buildroot supported GDB Blackfin
Simulator.
Signed-off-by: Waldemar Brodkorb <wbx at openadk.org>
---
v3 -> v4:
- the workaround is Blackfin specific and is not fixed
upstream. Problem with ARM reported by Thomas Petazzoni
v2 -> v3:
- add workaround for GDB bug when in-tree compile is used,
problem reported by Thomas Petazzoni
- tested with GDB 7.9, 7.10.1, 7.11
v1 -> v2:
- no changes
---
package/gdb/Config.in.host | 5 +++++
package/gdb/gdb.mk | 17 +++++++++++++++--
2 files changed, 20 insertions(+), 2 deletions(-)
diff --git a/package/gdb/Config.in.host b/package/gdb/Config.in.host
index 257d68a..dc149b6 100644
--- a/package/gdb/Config.in.host
+++ b/package/gdb/Config.in.host
@@ -23,6 +23,11 @@ config BR2_PACKAGE_HOST_GDB_PYTHON
help
This option enables the Python support in the cross gdb.
+config BR2_PACKAGE_HOST_GDB_SIM
+ bool "Simulator support"
+ help
+ This option enables the simulator support in the cross gdb.
+
choice
prompt "GDB debugger Version"
depends on !BR2_arc
diff --git a/package/gdb/gdb.mk b/package/gdb/gdb.mk
index 0a7af1e..84f2029 100644
--- a/package/gdb/gdb.mk
+++ b/package/gdb/gdb.mk
@@ -163,8 +163,7 @@ HOST_GDB_CONF_OPTS = \
--enable-threads \
--disable-werror \
--without-included-gettext \
- $(GDB_DISABLE_BINUTILS_CONF_OPTS) \
- --disable-sim
+ $(GDB_DISABLE_BINUTILS_CONF_OPTS)
ifeq ($(BR2_PACKAGE_HOST_GDB_TUI),y)
HOST_GDB_CONF_OPTS += --enable-tui
@@ -179,6 +178,20 @@ else
HOST_GDB_CONF_OPTS += --without-python
endif
+# workaround a bug if in-tree build is used for bfin sim
+define HOST_GDB_BFIN_SIM_WORKAROUND
+ $(RM) $(@D)/sim/common/tconfig.h
+endef
+
+ifeq ($(BR2_PACKAGE_HOST_GDB_SIM),y)
+HOST_GDB_CONF_OPTS += --enable-sim
+ifeq ($(BR2_bfin),y)
+HOST_GDB_PRE_CONFIGURE_HOOKS += HOST_GDB_BFIN_SIM_WORKAROUND
+endif
+else
+HOST_GDB_CONF_OPTS += --disable-sim
+endif
+
# legacy $arch-linux-gdb symlink
define HOST_GDB_ADD_SYMLINK
cd $(HOST_DIR)/usr/bin && \
--
2.1.4
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