[v2,3/7] build: convert verbose to Kconfig

Commit Message

Douglas Goldstein May 3, 2016, 2:29 p.m. UTC

Convert 'verbose', which was enabled by 'debug=y' to Kconfig as
CONFIG_VERBOSE_DEBUG which is enabled by default when CONFIG_DEBUG is
enabled.

Signed-off-by: Doug Goldstein <[e-mail]>
---
CC: Stefano Stabellini <[e-mail]>
CC: Julien Grall <[e-mail]>
CC: Jan Beulich <[e-mail]>
CC: Andrew Cooper <[e-mail]>
CC: Daniel De Graaf <[e-mail]>
---
 INSTALL                     | 1 -
 xen/Kconfig.debug           | 7 +++++++
 xen/Rules.mk                | 5 -----
 xen/arch/arm/kernel.c       | 2 +-
 xen/arch/x86/domain_build.c | 2 +-
 xen/include/xsm/dummy.h     | 2 +-
 6 files changed, 10 insertions(+), 9 deletions(-)

Comments

Jan Beulich May 3, 2016, 2:47 p.m. UTC | #1

>>> On 03.05.16 at 16:29, <[e-mail]> wrote:
> --- a/xen/Kconfig.debug
> +++ b/xen/Kconfig.debug
> @@ -15,4 +15,11 @@ config CRASH_DEBUG
>  	  If you want to be able to attach gdb to Xen to be able to debug
>  	  Xen if it crashes then say Y.
>  
> +config VERBOSE_DEBUG
> +	bool "Verbose debug messages"
> +	default y

With the enclosing "if" adjusted, this would need to become
"default DEBUG", and I think that's a good idea anyway (i.e. even
if that other change was rejected by someone else, this would still
make the code prepared to _some_ future adjustment to that "if").

> @@ -17,10 +16,7 @@ include $(XEN_ROOT)/Config.mk
>  # Hardcoded configuration implications and dependencies.
>  # Do this is a neater way if it becomes unwieldy.
>  ifeq ($(debug),y)
> -verbose       := y
>  frame_pointer := y
> -else
> -CFLAGS += -DNDEBUG

Ah, here's the change that belongs into patch 1.

Again, with those adjustments
Reviewed-by: Jan Beulich <[e-mail]>

Patch

diff --git a/INSTALL b/INSTALL
index 2974b9b..35668bd 100644
--- a/INSTALL
+++ b/INSTALL
@@ -227,7 +227,6 @@  VGABIOS_REL_DATE="dd Mon yyyy"
 
 The following variables can be used to tweak some aspects of the
 hypervisor build.
-verbose=y
 perfc=y
 perfc_arrays=y
 lock_profile=y
diff --git a/xen/Kconfig.debug b/xen/Kconfig.debug
index 04f672f..89e26fe 100644
--- a/xen/Kconfig.debug
+++ b/xen/Kconfig.debug
@@ -15,4 +15,11 @@  config CRASH_DEBUG
 	  If you want to be able to attach gdb to Xen to be able to debug
 	  Xen if it crashes then say Y.
 
+config VERBOSE_DEBUG
+	bool "Verbose debug messages"
+	default y
+	---help---
+	  Guest output from HYPERVISOR_console_io and hypervisor parsing
+	  ELF images (dom0) is logged in the Xen ring buffer.
+
 endif # DEBUG
diff --git a/xen/Rules.mk b/xen/Rules.mk
index c044fd1..b159451 100644
--- a/xen/Rules.mk
+++ b/xen/Rules.mk
@@ -3,7 +3,6 @@ 
 # If you change any of these configuration options then you must
 # 'make clean' before rebuilding.
 #
-verbose       ?= n
 perfc         ?= n
 perfc_arrays  ?= n
 lock_profile  ?= n
@@ -17,10 +16,7 @@  include $(XEN_ROOT)/Config.mk
 # Hardcoded configuration implications and dependencies.
 # Do this is a neater way if it becomes unwieldy.
 ifeq ($(debug),y)
-verbose       := y
 frame_pointer := y
-else
-CFLAGS += -DNDEBUG
 endif
 ifeq ($(perfc_arrays),y)
 perfc := y
@@ -59,7 +55,6 @@  ifneq ($(clang),y)
 CFLAGS += -Wa,--strip-local-absolute
 endif
 
-CFLAGS-$(verbose)       += -DVERBOSE
 CFLAGS-$(perfc)         += -DPERF_COUNTERS
 CFLAGS-$(perfc_arrays)  += -DPERF_ARRAYS
 CFLAGS-$(lock_profile)  += -DLOCK_PROFILE
diff --git a/xen/arch/arm/kernel.c b/xen/arch/arm/kernel.c
index 9871bd9..3f6cce3 100644
--- a/xen/arch/arm/kernel.c
+++ b/xen/arch/arm/kernel.c
@@ -472,7 +472,7 @@  static int kernel_elf_probe(struct kernel_info *info,
 
     if ( (rc = elf_init(&info->elf.elf, info->elf.kernel_img, size )) != 0 )
         goto err;
-#ifdef VERBOSE
+#ifdef CONFIG_VERBOSE_DEBUG
     elf_set_verbose(&info->elf.elf);
 #endif
     elf_parse_binary(&info->elf.elf);
diff --git a/xen/arch/x86/domain_build.c b/xen/arch/x86/domain_build.c
index f9a3eca..b29c377 100644
--- a/xen/arch/x86/domain_build.c
+++ b/xen/arch/x86/domain_build.c
@@ -942,7 +942,7 @@  int __init construct_dom0(
 
     if ( (rc = elf_init(&elf, image_start, image_len)) != 0 )
         return rc;
-#ifdef VERBOSE
+#ifdef CONFIG_VERBOSE_DEBUG
     elf_set_verbose(&elf);
 #endif
     elf_parse_binary(&elf);
diff --git a/xen/include/xsm/dummy.h b/xen/include/xsm/dummy.h
index abbe282..406cd18 100644
--- a/xen/include/xsm/dummy.h
+++ b/xen/include/xsm/dummy.h
@@ -215,7 +215,7 @@  static XSM_INLINE int xsm_memory_stat_reservation(XSM_DEFAULT_ARG struct domain
 static XSM_INLINE int xsm_console_io(XSM_DEFAULT_ARG struct domain *d, int cmd)
 {
     XSM_ASSERT_ACTION(XSM_OTHER);
-#ifdef VERBOSE
+#ifdef CONFIG_VERBOSE_DEBUG
     if ( cmd == CONSOLEIO_write )
         return xsm_default_action(XSM_HOOK, d, NULL);
 #endif