[PATCH 0/7] Build ppc64le kernel using ABIv2, supplemental patches

Anton Blanchard anton at samba.org
Fri Apr 4 17:09:03 EST 2014

These patches apply against my last series and fix all known
ABIv2 issues.

To stress the module loader and dynamic ftrace code, I built an
allmodconfig kernel and inserted every module I could. I found a bunch
of bugs in the modules themselves, but in the end I managed to
get quite a few modules to load:

# cat /proc/modules | wc -l

It survived a fair bit of poking (enabling/disabling function tracers

Anton Blanchard (7):
  powerpc: Add _GLOBAL_TOC for ABIv2 assembly functions exported to
  powerpc: ftrace_caller, _mcount is exported to modules so needs
  powerpc/kprobes: Fix ABIv2 issues with kprobe_lookup_name
  powerpc/modules: Create is_module_trampoline()
  powerpc/modules: Create module_trampoline_target()
  powerpc/ftrace: Use module loader helpers to parse trampolines
  powerpc/ftrace: Fix ABIv2 issues with __ftrace_make_call

 arch/powerpc/include/asm/kprobes.h |   5 +-
 arch/powerpc/include/asm/module.h  |   3 +
 arch/powerpc/include/asm/ppc_asm.h |  12 ++++
 arch/powerpc/kernel/entry_64.S     |   7 +-
 arch/powerpc/kernel/ftrace.c       | 137 +++++++++++--------------------------
 arch/powerpc/kernel/module_64.c    |  80 ++++++++++++++++++++--
 arch/powerpc/lib/copyuser_64.S     |   2 +-
 arch/powerpc/lib/memcpy_64.S       |   2 +-
 8 files changed, 136 insertions(+), 112 deletions(-)


More information about the Linuxppc-dev mailing list