Some aids for debugging: stack dumping, register dumping, and printing
failing assertion conditions.
I _have_ compiled on ppc64 and arm64 :-)
v3:
* Renamed functions to match standard backtrace functions
* Added asm-generic stack walker that uses __builtin_return_address.
* Moved offset out of libcflat and into pretty printer
* Made pretty printer more robust w.r.t. errors: now it just
continues printing.
v2:
* Fixed a bunch tests on x86 that broke with
-fno-omit-frame-pointer.
* Only use -fno-omit-frame-pointer on x86. I suspect arm & ppc
will have similar problems that I fixed for x86.
Peter Feiner (4):
lib: backtrace printing
x86: lib: debug dump on unhandled exceptions
lib: dump stack on failed assert()
scripts: pretty print stack traces
Makefile | 3 +-
arm/Makefile.common | 1 +
lib/arm/asm/stack.h | 1 +
lib/arm64/asm/stack.h | 1 +
lib/asm-generic/stack.c | 53 +++++++++++++++++++++++++
lib/asm-generic/stack.h | 14 +++++++
lib/libcflat.h | 9 ++++-
lib/powerpc/asm/stack.h | 1 +
lib/ppc64/asm/stack.h | 1 +
lib/printf.c | 42 ++++++++++++++++++++
lib/x86/asm/stack.c | 25 ++++++++++++
lib/x86/asm/stack.h | 12 ++++++
lib/x86/desc.c | 69 +++++++++++++++++++++++++++++---
powerpc/Makefile.common | 1 +
run_tests.sh | 10 ++++-
scripts/pretty_print_stacks.py | 89 ++++++++++++++++++++++++++++++++++++++++++
x86/Makefile.common | 4 ++
17 files changed, 325 insertions(+), 11 deletions(-)
create mode 100644 lib/arm/asm/stack.h
create mode 100644 lib/arm64/asm/stack.h
create mode 100644 lib/asm-generic/stack.c
create mode 100644 lib/asm-generic/stack.h
create mode 100644 lib/powerpc/asm/stack.h
create mode 100644 lib/ppc64/asm/stack.h
create mode 100644 lib/x86/asm/stack.c
create mode 100644 lib/x86/asm/stack.h
create mode 100755 scripts/pretty_print_stacks.py
--
2.7.0.rc3.207.g0ac5344
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