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authorJan Kiszka <jan.kiszka@siemens.com>2015-02-17 13:46:36 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2015-02-17 14:34:53 -0800
commit3ee7b3fa2cd0182628cca8d9bb5ce2d4722e8dc5 (patch)
treeecbead6b6c7ac9f7a9a62e17f516611873e6c275 /Makefile
parent0445f01a53ad53ef6b23307b4630ab92423994ab (diff)
downloadlinux-linaro-stable-3ee7b3fa2cd0182628cca8d9bb5ce2d4722e8dc5.tar.gz
scripts/gdb: add infrastructure
This provides the basic infrastructure to load kernel-specific python helper scripts when debugging the kernel in gdb. The loading mechanism is based on gdb loading for <objfile>-gdb.py when opening <objfile>. Therefore, this places a corresponding link to the main helper script into the output directory that contains vmlinux. The main scripts will pull in submodules containing Linux specific gdb commands and functions. To avoid polluting the source directory with compiled python modules, we link to them from the object directory. Due to gdb.parse_and_eval and string redirection for gdb.execute, we depend on gdb >= 7.2. This feature is enabled via CONFIG_GDB_SCRIPTS. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Acked-by: Michal Marek <mmarek@suse.cz> [kbuild stuff] Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Wessel <jason.wessel@windriver.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Ben Widawsky <ben@bwidawsk.net> Cc: Borislav Petkov <bp@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Makefile')
-rw-r--r--Makefile5
1 files changed, 4 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index 33cb15efd257..dd8796caa239 100644
--- a/Makefile
+++ b/Makefile
@@ -927,6 +927,9 @@ endif
ifdef CONFIG_BUILD_DOCSRC
$(Q)$(MAKE) $(build)=Documentation
endif
+ifdef CONFIG_GDB_SCRIPTS
+ $(Q)ln -fsn `cd $(srctree) && /bin/pwd`/scripts/gdb/vmlinux-gdb.py
+endif
+$(call if_changed,link-vmlinux)
# The actual objects are generated when descending,
@@ -1181,7 +1184,7 @@ MRPROPER_FILES += .config .config.old .version .old_version $(version_h) \
Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
signing_key.priv signing_key.x509 x509.genkey \
extra_certificates signing_key.x509.keyid \
- signing_key.x509.signer
+ signing_key.x509.signer vmlinux-gdb.py
# clean - Delete most, but leave enough to build external modules
#