diff options
| -rw-r--r-- | Kbuild | 10 | ||||
| -rw-r--r-- | scripts/gdb/linux/Makefile | 12 | ||||
| -rw-r--r-- | scripts/gdb/linux/constants.py.in | 32 | ||||
| -rw-r--r-- | scripts/gdb/vmlinux-gdb.py | 1 |
4 files changed, 54 insertions, 1 deletions
@@ -5,6 +5,7 @@ # 2) Generate timeconst.h # 3) Generate asm-offsets.h (may need bounds.h and timeconst.h) # 4) Check for missing system calls +# 5) Generate constants.py (may need bounds.h) # Default sed regexp - multiline due to syntax constraints define sed-y @@ -96,5 +97,14 @@ quiet_cmd_syscalls = CALL $< missing-syscalls: scripts/checksyscalls.sh $(offsets-file) FORCE $(call cmd,syscalls) +##### +# 5) Generate constants for Python GDB integration +# + +extra-$(CONFIG_GDB_SCRIPTS) += build_constants_py + +build_constants_py: $(obj)/$(timeconst-file) $(obj)/$(bounds-file) + @$(MAKE) $(build)=scripts/gdb/linux $@ + # Keep these three files during make clean no-clean-files := $(bounds-file) $(offsets-file) $(timeconst-file) diff --git a/scripts/gdb/linux/Makefile b/scripts/gdb/linux/Makefile index 6cf1ecf61057..cd129e65d1ff 100644 --- a/scripts/gdb/linux/Makefile +++ b/scripts/gdb/linux/Makefile @@ -8,4 +8,14 @@ ifneq ($(KBUILD_SRC),) endif @: -clean-files := *.pyc *.pyo $(if $(KBUILD_SRC),*.py) +quiet_cmd_gen_constants_py = GEN $@ + cmd_gen_constants_py = \ + $(CPP) -E -x c -P $(c_flags) $< > $@ ;\ + sed -i '1,/<!-- end-c-headers -->/d;' $@ + +$(obj)/constants.py: $(SRCTREE)/$(obj)/constants.py.in + $(call if_changed,gen_constants_py) + +build_constants_py: $(obj)/constants.py + +clean-files := *.pyc *.pyo $(if $(KBUILD_SRC),*.py) $(obj)/constants.py diff --git a/scripts/gdb/linux/constants.py.in b/scripts/gdb/linux/constants.py.in new file mode 100644 index 000000000000..79d9d0092452 --- /dev/null +++ b/scripts/gdb/linux/constants.py.in @@ -0,0 +1,32 @@ +/* + * gdb helper commands and functions for Linux kernel debugging + * + * Kernel constants derived from include files. + * + * Copyright (c) 2016 Linaro Ltd + * + * Authors: + * Kieran Bingham <kieran.bingham@linaro.org> + * + * This work is licensed under the terms of the GNU GPL version 2. + * + */ + +/* We need to stringify expanded macros so that they can be parsed */ +#define STRING(x) #x +#define XSTRING(x) STRING(x) + +#define LX_VALUE(x) LX_##x = x +#define LX_GDBPARSED(x) LX_##x = gdb.parse_and_eval(XSTRING(x)) + +/* + * IS_ENABLED generates (a || b) which is not compatible with python + * We can only switch on configuration items we know are available + * Therefore - IS_BUILTIN() is more appropriate + */ +#define LX_CONFIG(x) LX_##x = IS_BUILTIN(x) + +/* The build system will take care of deleting everything above this marker */ +<!-- end-c-headers --> + +import gdb diff --git a/scripts/gdb/vmlinux-gdb.py b/scripts/gdb/vmlinux-gdb.py index d5943eca19cd..6e0b0afd888a 100644 --- a/scripts/gdb/vmlinux-gdb.py +++ b/scripts/gdb/vmlinux-gdb.py @@ -30,3 +30,4 @@ else: import linux.cpus import linux.lists import linux.proc + import linux.constants |