And make it the default in Kconfig.
Signed-off-by: Wei Liu <wei.l...@citrix.com>
---
Cc: Andrew Cooper <andrew.coop...@citrix.com>
Cc: George Dunlap <george.dun...@eu.citrix.com>
Cc: Ian Jackson <ian.jack...@eu.citrix.com>
Cc: Jan Beulich <jbeul...@suse.com>
Cc: Konrad Rzeszutek Wilk <konrad.w...@oracle.com>
Cc: Stefano Stabellini <sstabell...@kernel.org>
Cc: Tim Deegan <t...@xen.org>
Cc: Wei Liu <wei.l...@citrix.com>
---
xen/Kconfig.debug | 9 ++++++++-
xen/common/gcov/Makefile | 2 ++
2 files changed, 10 insertions(+), 1 deletion(-)
diff --git a/xen/Kconfig.debug b/xen/Kconfig.debug
index a8eb668..03a58a7 100644
--- a/xen/Kconfig.debug
+++ b/xen/Kconfig.debug
@@ -38,10 +38,17 @@ config GCOV
choice
prompt "Specify Gcov format"
depends on GCOV
- default GCOV_FORMAT_4_7
+ default GCOV_FORMAT_AUTODETECT
---help---
The gcov format is determined by gcc version.
+ If unsure, choose "Autodetect".
+
+config GCOV_FORMAT_AUTODETECT
+ bool "Autodetect"
+ ---help---
+ Automatically select gcov format based on GCC version.
+
config GCOV_FORMAT_4_7
bool "GCC 4.7 format"
---help---
diff --git a/xen/common/gcov/Makefile b/xen/common/gcov/Makefile
index 03ac1e5..c778334 100644
--- a/xen/common/gcov/Makefile
+++ b/xen/common/gcov/Makefile
@@ -1,3 +1,5 @@
obj-y += gcov_base.o gcov.o
obj-$(CONFIG_GCOV_FORMAT_3_4) += gcc_3_4.o
obj-$(CONFIG_GCOV_FORMAT_4_7) += gcc_4_7.o
+obj-$(CONFIG_GCOV_FORMAT_AUTODETECT) += $(call cc-ifversion, -ge, 0x040700, \
+ gcc_4_7.o, gcc_3_4.o)
--
2.1.4
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