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authorZong Li <zong.li@sifive.com>2020-01-02 06:09:54 +0300
committerPaul Walmsley <paul.walmsley@sifive.com>2020-01-03 11:47:02 +0300
commit0da310e82d3a9bff6ef6b0f2fbf45d1a05cc64fe (patch)
treef8e5eeb96d120146213c3421f7f05b65b67f8dd2
parentac51e005fe1456a288929a41d71adc6224e912d2 (diff)
downloadlinux-0da310e82d3a9bff6ef6b0f2fbf45d1a05cc64fe.tar.xz
riscv: gcov: enable gcov for RISC-V
This patch enables GCOV code coverage measurement on RISC-V. Lightly tested on QEMU and Hifive Unleashed board, seems to work as expected. Signed-off-by: Zong Li <zong.li@sifive.com> Reviewed-by: Anup Patel <anup@brainfault.org> Acked-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
-rw-r--r--Documentation/features/debug/gcov-profile-all/arch-support.txt2
-rw-r--r--arch/riscv/Kconfig1
2 files changed, 2 insertions, 1 deletions
diff --git a/Documentation/features/debug/gcov-profile-all/arch-support.txt b/Documentation/features/debug/gcov-profile-all/arch-support.txt
index 059d58a549c7..6fb2b0671994 100644
--- a/Documentation/features/debug/gcov-profile-all/arch-support.txt
+++ b/Documentation/features/debug/gcov-profile-all/arch-support.txt
@@ -23,7 +23,7 @@
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
- | riscv: | TODO |
+ | riscv: | ok |
| s390: | ok |
| sh: | ok |
| sparc: | TODO |
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index d8efbaa78d67..a31169b02ec0 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -64,6 +64,7 @@ config RISCV
select SPARSEMEM_STATIC if 32BIT
select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU
select HAVE_ARCH_MMAP_RND_BITS if MMU
+ select ARCH_HAS_GCOV_PROFILE_ALL
config ARCH_MMAP_RND_BITS_MIN
default 18 if 64BIT