diff options
| author | Dimitris Papastamos <dimitris.papastamos@arm.com> | 2017-10-13 15:07:45 +0100 |
|---|---|---|
| committer | Dimitris Papastamos <dimitris.papastamos@arm.com> | 2017-11-20 09:55:01 +0000 |
| commit | c776deed60b3d7f30f3095ee98c3f0b3c815c348 (patch) | |
| tree | 6249f6971027305c50ee762418c793c9ab46431d | |
| parent | 0fd0f22298c2cb7e7777725e1180fa9ebf7ffe67 (diff) | |
Change Statistical Profiling Extensions build option handling
It is not possible to detect at compile-time whether support for an
optional extension such as SPE should be enabled based on the
ARM_ARCH_MINOR build option value. Therefore SPE is now enabled by
default.
Change-Id: I670db164366aa78a7095de70a0962f7c0328ab7c
Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>
| -rw-r--r-- | docs/user-guide.rst | 6 | ||||
| -rw-r--r-- | make_helpers/defaults.mk | 13 |
2 files changed, 5 insertions, 14 deletions
diff --git a/docs/user-guide.rst b/docs/user-guide.rst index 172e7932..eeacc169 100644 --- a/docs/user-guide.rst +++ b/docs/user-guide.rst @@ -344,9 +344,9 @@ Common build options the ``ENABLE_PMF`` build option as well. Default is 0. - ``ENABLE_SPE_FOR_LOWER_ELS`` : Boolean option to enable Statistical Profiling - extensions. This is an optional architectural feature available only for - AArch64 8.2 onwards. This option defaults to 1 but is automatically - disabled when the target architecture is AArch32 or AArch64 8.0/8.1. + extensions. This is an optional architectural feature for AArch64. + The default is 1 but is automatically disabled when the target architecture + is AArch32. - ``ENABLE_STACK_PROTECTOR``: String option to enable the stack protection checks in GCC. Allowed values are "all", "strong" and "0" (default). diff --git a/make_helpers/defaults.mk b/make_helpers/defaults.mk index 660e54e7..b7ce051b 100644 --- a/make_helpers/defaults.mk +++ b/make_helpers/defaults.mk @@ -149,19 +149,10 @@ V := 0 # platforms). WARMBOOT_ENABLE_DCACHE_EARLY := 0 -# By default, enable Statistical Profiling Extensions. -# The top level Makefile will disable this feature depending on -# the target architecture and version number. +# Build option to enable/disable the Statistical Profiling Extensions ENABLE_SPE_FOR_LOWER_ELS := 1 -# SPE is enabled by default but only supported on AArch64 8.2 onwards. -# Disable it in all other cases. +# SPE is only supported on AArch64 so disable it on AArch32. ifeq (${ARCH},aarch32) override ENABLE_SPE_FOR_LOWER_ELS := 0 -else - ifeq (${ARM_ARCH_MAJOR},8) - ifeq ($(ARM_ARCH_MINOR),$(filter $(ARM_ARCH_MINOR),0 1)) - ENABLE_SPE_FOR_LOWER_ELS := 0 - endif - endif endif |