[packages/kernel] - rel 3; bring orc unwinder back (https://lwn.net/Articles/727553/)

[arekm]

commit dc2ad284a49345a28ce96ea10617e926acb96993
Author: Arkadiusz Miśkiewicz <arekm at maven.pl>
Date:   Tue Nov 14 10:03:04 2017 +0100

    - rel 3; bring orc unwinder back (https://lwn.net/Articles/727553/)

 kernel-multiarch.config |  6 +++---
 kernel.spec             | 11 ++++++++++-
 2 files changed, 13 insertions(+), 4 deletions(-)
---
diff --git a/kernel.spec b/kernel.spec
index 75382e05..620e7205 100644
--- a/kernel.spec
+++ b/kernel.spec
@@ -68,7 +68,7 @@
 %define		have_pcmcia	0
 %endif
 
-%define		rel		2
+%define		rel		3
 %define		basever		4.14
 %define		postver		.0
 
@@ -1013,6 +1013,11 @@ for dir in $(cd %{objdir} && find arch -name generated -type d); do
 	find $RPM_BUILD_ROOT%{_kernelsrcdir}/$dir -name '.*.cmd' -exec rm "{}" ";"
 done
 
+# Needed for CONFIG_STACK_VALIDATION / ORC_UNWINDER enabled builds
+install -d $RPM_BUILD_ROOT%{_kernelsrcdir}/tools/objtool
+cp -a %{objdir}/tools/objtool/fixdep $RPM_BUILD_ROOT%{_kernelsrcdir}/tools/objtool
+cp -a %{objdir}/tools/objtool/objtool $RPM_BUILD_ROOT%{_kernelsrcdir}/tools/objtool
+
 # version.h location changed in 3.7, but a lot of external modules don't know about it
 # add a compatibility symlink
 ln -s ../generated/uapi/linux/version.h $RPM_BUILD_ROOT%{_kernelsrcdir}/include/linux/version.h
@@ -1414,6 +1419,8 @@ fi
 %{_kernelsrcdir}/scripts/selinux/mdp/*.c
 %exclude %dir %{_kernelsrcdir}/security
 %exclude %dir %{_kernelsrcdir}/security/selinux
+%attr(755,root,root) %{_kernelsrcdir}/tools/objtool/fixdep
+%attr(755,root,root) %{_kernelsrcdir}/tools/objtool/objtool
 
 %if %{with doc}
 %files doc
@@ -1490,6 +1497,8 @@ fi
 %{_kernelsrcdir}/security
 %exclude %{_kernelsrcdir}/security/selinux/include
 %{_kernelsrcdir}/tools/*
+%exclude %{_kernelsrcdir}/tools/objtool/fixdep
+%exclude %{_kernelsrcdir}/tools/objtool/objtool
 %{_kernelsrcdir}/usr
 %{_kernelsrcdir}/COPYING
 %{_kernelsrcdir}/CREDITS
diff --git a/kernel-multiarch.config b/kernel-multiarch.config
index a90ed234..50ced2a5 100644
--- a/kernel-multiarch.config
+++ b/kernel-multiarch.config
@@ -14,7 +14,7 @@ EARLY_PRINTK_EFI all=n
 EARLY_PRINTK_USB_XDBC all=n
 EFI_MIXED all=y
 EFI_PGT_DUMP all=n
-FRAME_POINTER_UNWINDER all=y
+FRAME_POINTER_UNWINDER all=n
 GCC_PLUGINS all=y
 GCC_PLUGIN_CYC_COMPLEXITY all=n
 GCC_PLUGIN_LATENT_ENTROPY all=n
@@ -31,7 +31,7 @@ IOSF_MBI_DEBUG all=y
 KEXEC_FILE all=y
 KEXEC_VERIFY_SIG all=n
 KVM_DEBUG_FS all=n
-ORC_UNWINDER all=n
+ORC_UNWINDER all=y
 PERF_EVENTS_AMD_POWER all=m
 PERF_EVENTS_INTEL_CSTATE all=m
 PERF_EVENTS_INTEL_RAPL all=m
@@ -10172,7 +10172,7 @@ HEADERS_CHECK all=y
 DEBUG_SECTION_MISMATCH all=n
 SECTION_MISMATCH_WARN_ONLY all=y
 FRAME_POINTER i386=y x86_64=y
-STACK_VALIDATION all=n
+STACK_VALIDATION all=y
 DEBUG_FORCE_WEAK_PER_CPU all=n
 MAGIC_SYSRQ all=y
 MAGIC_SYSRQ_DEFAULT_ENABLE all=0x1
================================================================

---- gitweb:

http://git.pld-linux.org/gitweb.cgi/packages/kernel.git/commitdiff/dc2ad284a49345a28ce96ea10617e926acb96993