CONFIG_INITCALL_DEBUG=y is a very useful tool for debugging barebox
hangs, but it's not so useful if the hang happens very early.
Define a new CONFIG_PBL_DEBUG symbol that will define DEBUG globally
in PBL to get more insight into boot hangs.
Signed-off-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx>
---
v1 -> v2:
- changed into separate config option instead of piggy backing
CONFIG_DEBUG_INITCALLS (Sascha)
---
common/Kconfig | 9 +++++++++
scripts/Makefile.lib | 4 ++++
2 files changed, 13 insertions(+)
diff --git a/common/Kconfig b/common/Kconfig
index 19cd79311016..46675dfe2ea7 100644
--- a/common/Kconfig
+++ b/common/Kconfig
@@ -1566,6 +1566,15 @@ config DEBUG_INITCALLS
help
If enabled this will print initcall traces.
+config DEBUG_PBL
+ bool "Print PBL debugging information"
+ depends on PBL_CONSOLE || DEBUG_LL
+ help
+ If enabled this will enable all debug prints in the prebootloader.
+ For this to work, a console needs to be configured in the
+ board-specific entry point and configured for either DEBUG_LL
+ or PBL_CONSOLE.
+
config DEBUG_PROBES
bool "Trace driver probes/removes"
help
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 85d18f07a2b6..6e0d92cf756d 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -156,6 +156,10 @@ _c_flags += $(if $(patsubst n%,, \
PBL_CPPFLAGS += $(call cc-option,-fno-sanitize=all)
endif
+ifeq ($(CONFIG_DEBUG_PBL),y)
+PBL_CPPFLAGS += -DDEBUG
+endif
+
# If building barebox in a separate objtree expand all occurrences
# of -Idir to -I$(srctree)/dir except for absolute paths (starting with '/').
--
2.30.2
