MIPS: allow building with kcov coverage

khoroshilov · paulburton · commit dcf78ee66088 · 2019-11-11T10:46:53.000-08:00
Add ARCH_HAS_KCOV and HAVE_GCC_PLUGINS to MIPS config.
Disable instrumentation of vdso to avoid build failure.

Signed-off-by: Alexey Khoroshilov &lt;khoroshilov@ispras.ru&gt;
Signed-off-by: Paul Burton &lt;paulburton@kernel.org&gt;
Cc: Ralf Baechle &lt;ralf@linux-mips.org&gt;
Cc: James Hogan &lt;jhogan@kernel.org&gt;
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
@@ -87,6 +87,8 @@ config MIPS
 	select SYSCTL_EXCEPTION_TRACE
 	select VIRT_TO_BUS
 	select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI)
+	select ARCH_HAS_KCOV
+	select HAVE_GCC_PLUGINS
 
 menu "Machine selection"
 
diff --git a/arch/mips/vdso/Makefile b/arch/mips/vdso/Makefile
@@ -75,6 +75,7 @@ CFLAGS_REMOVE_vdso.o = -pg
 
 GCOV_PROFILE := n
 UBSAN_SANITIZE := n
+KCOV_INSTRUMENT := n
 
 #
 # Shared build commands.

Original file line number	Diff line number	Diff line change
`@@ -75,6 +75,7 @@ CFLAGS_REMOVE_vdso.o = -pg`
`75`	`75`
`76`	`76`	`GCOV_PROFILE := n`
`77`	`77`	`UBSAN_SANITIZE := n`
	`78`	`+KCOV_INSTRUMENT := n`
`78`	`79`
`79`	`80`	`#`
`80`	`81`	`# Shared build commands.`