When we collect just user events for autofdo with lbr we get some events where
branch
sources are kernel addresses and branch targets are user addresses. Without
kernel MMAP
events create_gcov can't make sense of kernel addresses. Currently create_gcov
fails if
it can't map at least 95% of events. We sometimes get below this threshold with
just
user events. The change is to collect both user events and kernel events.
Tested on x86_64-pc-linux-gnu.
ChangeLog:
* Makefile.in: Collect both kernel and user events for autofdo
* Makefile.tpl: Collect both kernel and user events for autofdo
gcc/testsuite/ChangeLog:
* lib/target-supports.exp: Collect both kernel and user events for
autofdo
---
Makefile.in | 2 +-
Makefile.tpl | 2 +-
gcc/testsuite/lib/target-supports.exp | 2 +-
3 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/Makefile.in b/Makefile.in
index f19a9db621e..04307ca561b 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -404,7 +404,7 @@ MAKEINFO = @MAKEINFO@
EXPECT = @EXPECT@
RUNTEST = @RUNTEST@
-AUTO_PROFILE = gcc-auto-profile -c 10000000
+AUTO_PROFILE = gcc-auto-profile --all -c 10000000
# This just becomes part of the MAKEINFO definition passed down to
# sub-makes. It lets flags be given on the command line while still
diff --git a/Makefile.tpl b/Makefile.tpl
index 3a5b7ed3c92..d0fe7e2fb77 100644
--- a/Makefile.tpl
+++ b/Makefile.tpl
@@ -407,7 +407,7 @@ MAKEINFO = @MAKEINFO@
EXPECT = @EXPECT@
RUNTEST = @RUNTEST@
-AUTO_PROFILE = gcc-auto-profile -c 10000000
+AUTO_PROFILE = gcc-auto-profile --all -c 10000000
# This just becomes part of the MAKEINFO definition passed down to
# sub-makes. It lets flags be given on the command line while still
diff --git a/gcc/testsuite/lib/target-supports.exp
b/gcc/testsuite/lib/target-supports.exp
index 4d04df2a709..b16853d76df 100644
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -704,7 +704,7 @@ proc check_effective_target_keeps_null_pointer_checks { } {
# this allows parallelism of 16 and higher of parallel gcc-auto-profile
proc profopt-perf-wrapper { } {
global srcdir
- return "$srcdir/../config/i386/gcc-auto-profile -m8 "
+ return "$srcdir/../config/i386/gcc-auto-profile --all -m8 "
}
# Return true if profiling is supported on the target.
--
2.25.1
