From 40ecc0aff22302ee76a724e7d3223ad8c75febe2 Mon Sep 17 00:00:00 2001 From: Rasmus Villemoes Date: Sun, 8 Apr 2018 23:35:28 +0200 Subject: [PATCH 1/4] Kbuild: fix # escaping in .cmd files for future Make MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit commit 9564a8cf422d7b58f6e857e3546d346fa970191e upstream. I tried building using a freshly built Make (4.2.1-69-g8a731d1), but already the objtool build broke with orc_dump.c: In function ‘orc_dump’: orc_dump.c:106:2: error: ‘elf_getshnum’ is deprecated [-Werror=deprecated-declarations] if (elf_getshdrnum(elf, &nr_sections)) { Turns out that with that new Make, the backslash was not removed, so cpp didn't see a #include directive, grep found nothing, and -DLIBELF_USE_DEPRECATED was wrongly put in CFLAGS. Now, that new Make behaviour is documented in their NEWS file: * WARNING: Backward-incompatibility! Number signs (#) appearing inside a macro reference or function invocation no longer introduce comments and should not be escaped with backslashes: thus a call such as: foo := $(shell echo '#') is legal. Previously the number sign needed to be escaped, for example: foo := $(shell echo '\#') Now this latter will resolve to "\#". If you want to write makefiles portable to both versions, assign the number sign to a variable: C := \# foo := $(shell echo '$C') This was claimed to be fixed in 3.81, but wasn't, for some reason. To detect this change search for 'nocomment' in the .FEATURES variable. This also fixes up the two make-cmd instances to replace # with $(pound) rather than with \#. There might very well be other places that need similar fixup in preparation for whatever future Make release contains the above change, but at least this builds an x86_64 defconfig with the new make. Link: https://bugzilla.kernel.org/show_bug.cgi?id=197847 Cc: Randy Dunlap Signed-off-by: Rasmus Villemoes Signed-off-by: Masahiro Yamada Cc: Konstantin Khlebnikov Signed-off-by: Greg Kroah-Hartman --- scripts/Kbuild.include | 5 +++-- tools/build/Build.include | 5 +++-- tools/scripts/Makefile.include | 2 ++ 3 files changed, 8 insertions(+), 4 deletions(-) diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include index 1db6d73c8dd2..31a981d6229d 100644 --- a/scripts/Kbuild.include +++ b/scripts/Kbuild.include @@ -7,6 +7,7 @@ quote := " squote := ' empty := space := $(empty) $(empty) +pound := \# ### # Name of target with a '.' as filename prefix. foo/bar.o => foo/.bar.o @@ -236,11 +237,11 @@ endif # Replace >$< with >$$< to preserve $ when reloading the .cmd file # (needed for make) -# Replace >#< with >\#< to avoid starting a comment in the .cmd file +# Replace >#< with >$(pound)< to avoid starting a comment in the .cmd file # (needed for make) # Replace >'< with >'\''< to be able to enclose the whole string in '...' # (needed for the shell) -make-cmd = $(call escsq,$(subst \#,\\\#,$(subst $$,$$$$,$(cmd_$(1))))) +make-cmd = $(call escsq,$(subst $(pound),$$(pound),$(subst $$,$$$$,$(cmd_$(1))))) # Find any prerequisites that is newer than target or that does not exist. # PHONY targets skipped in both cases. diff --git a/tools/build/Build.include b/tools/build/Build.include index 1c570528baf7..0340d8a51dab 100644 --- a/tools/build/Build.include +++ b/tools/build/Build.include @@ -12,6 +12,7 @@ # Convenient variables comma := , squote := ' +pound := \# ### # Name of target with a '.' as filename prefix. foo/bar.o => foo/.bar.o @@ -43,11 +44,11 @@ echo-cmd = $(if $($(quiet)cmd_$(1)),\ ### # Replace >$< with >$$< to preserve $ when reloading the .cmd file # (needed for make) -# Replace >#< with >\#< to avoid starting a comment in the .cmd file +# Replace >#< with >$(pound)< to avoid starting a comment in the .cmd file # (needed for make) # Replace >'< with >'\''< to be able to enclose the whole string in '...' # (needed for the shell) -make-cmd = $(call escsq,$(subst \#,\\\#,$(subst $$,$$$$,$(cmd_$(1))))) +make-cmd = $(call escsq,$(subst $(pound),$$(pound),$(subst $$,$$$$,$(cmd_$(1))))) ### # Find any prerequisites that is newer than target or that does not exist. diff --git a/tools/scripts/Makefile.include b/tools/scripts/Makefile.include index 19edc1a7a232..7ea4438b801d 100644 --- a/tools/scripts/Makefile.include +++ b/tools/scripts/Makefile.include @@ -92,3 +92,5 @@ ifneq ($(silent),1) QUIET_INSTALL = @printf ' INSTALL %s\n' $1; endif endif + +pound := \# From 654ee679e1a16eafc65c541f7dc71471b9608e04 Mon Sep 17 00:00:00 2001 From: Andy Lutomirski Date: Thu, 15 Dec 2016 10:14:42 -0800 Subject: [PATCH 2/4] x86/cpu: Probe CPUID leaf 6 even when cpuid_level == 6 commit 3df8d9208569ef0b2313e516566222d745f3b94b upstream. A typo (or mis-merge?) resulted in leaf 6 only being probed if cpuid_level >= 7. Fixes: 2ccd71f1b278 ("x86/cpufeature: Move some of the scattered feature bits to x86_capability") Signed-off-by: Andy Lutomirski Acked-by: Borislav Petkov Cc: Brian Gerst Link: http://lkml.kernel.org/r/6ea30c0e9daec21e488b54761881a6dfcf3e04d0.1481825597.git.luto@kernel.org Signed-off-by: Thomas Gleixner Cc: Brad Spengler Signed-off-by: Greg Kroah-Hartman --- arch/x86/kernel/cpu/common.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index 814276d0eed1..736e2843139b 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -686,13 +686,14 @@ void get_cpu_cap(struct cpuinfo_x86 *c) c->x86_capability[CPUID_1_EDX] = edx; } + /* Thermal and Power Management Leaf: level 0x00000006 (eax) */ + if (c->cpuid_level >= 0x00000006) + c->x86_capability[CPUID_6_EAX] = cpuid_eax(0x00000006); + /* Additional Intel-defined flags: level 0x00000007 */ if (c->cpuid_level >= 0x00000007) { cpuid_count(0x00000007, 0, &eax, &ebx, &ecx, &edx); - c->x86_capability[CPUID_7_0_EBX] = ebx; - - c->x86_capability[CPUID_6_EAX] = cpuid_eax(0x00000006); c->x86_capability[CPUID_7_ECX] = ecx; } From 60904a578815a6f4abcc0eafadacc152589359fd Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Thu, 7 Jul 2016 18:28:43 -0300 Subject: [PATCH 3/4] perf tools: Move syscall number fallbacks from perf-sys.h to tools/arch/x86/include/asm/ commit cec07f53c398f22576df77052c4777dc13f14962 upstream. And remove the empty tools/arch/x86/include/asm/unistd_{32,64}.h files introduced by eae7a755ee81 ("perf tools, x86: Build perf on older user-space as well"). This way we get closer to mirroring the kernel for cases where __NR_ can't be found for some include path/_GNU_SOURCE/whatever scenario. Cc: Adrian Hunter Cc: David Ahern Cc: Jiri Olsa Cc: Namhyung Kim Cc: Wang Nan Link: http://lkml.kernel.org/n/tip-kpj6m3mbjw82kg6krk2z529e@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo Cc: Konstantin Khlebnikov Signed-off-by: Greg Kroah-Hartman --- tools/arch/x86/include/asm/unistd_32.h | 9 +++++++++ tools/arch/x86/include/asm/unistd_64.h | 9 +++++++++ tools/perf/config/Makefile | 1 + tools/perf/perf-sys.h | 18 ------------------ tools/perf/util/include/asm/unistd_32.h | 1 - tools/perf/util/include/asm/unistd_64.h | 1 - 6 files changed, 19 insertions(+), 20 deletions(-) create mode 100644 tools/arch/x86/include/asm/unistd_32.h create mode 100644 tools/arch/x86/include/asm/unistd_64.h delete mode 100644 tools/perf/util/include/asm/unistd_32.h delete mode 100644 tools/perf/util/include/asm/unistd_64.h diff --git a/tools/arch/x86/include/asm/unistd_32.h b/tools/arch/x86/include/asm/unistd_32.h new file mode 100644 index 000000000000..cf33ab09273d --- /dev/null +++ b/tools/arch/x86/include/asm/unistd_32.h @@ -0,0 +1,9 @@ +#ifndef __NR_perf_event_open +# define __NR_perf_event_open 336 +#endif +#ifndef __NR_futex +# define __NR_futex 240 +#endif +#ifndef __NR_gettid +# define __NR_gettid 224 +#endif diff --git a/tools/arch/x86/include/asm/unistd_64.h b/tools/arch/x86/include/asm/unistd_64.h new file mode 100644 index 000000000000..2c9835695b56 --- /dev/null +++ b/tools/arch/x86/include/asm/unistd_64.h @@ -0,0 +1,9 @@ +#ifndef __NR_perf_event_open +# define __NR_perf_event_open 298 +#endif +#ifndef __NR_futex +# define __NR_futex 202 +#endif +#ifndef __NR_gettid +# define __NR_gettid 186 +#endif diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile index de89ec574361..b92c952b01ef 100644 --- a/tools/perf/config/Makefile +++ b/tools/perf/config/Makefile @@ -200,6 +200,7 @@ CFLAGS += -I$(src-perf)/arch/$(ARCH)/include CFLAGS += -I$(srctree)/tools/include/ CFLAGS += -I$(srctree)/arch/$(ARCH)/include/uapi CFLAGS += -I$(srctree)/arch/$(ARCH)/include +CFLAGS += -I$(srctree)/tools/arch/$(ARCH)/include CFLAGS += -I$(srctree)/include/uapi CFLAGS += -I$(srctree)/include diff --git a/tools/perf/perf-sys.h b/tools/perf/perf-sys.h index 83a25cef82fd..5cee8a3d0455 100644 --- a/tools/perf/perf-sys.h +++ b/tools/perf/perf-sys.h @@ -11,29 +11,11 @@ #if defined(__i386__) #define cpu_relax() asm volatile("rep; nop" ::: "memory"); #define CPUINFO_PROC {"model name"} -#ifndef __NR_perf_event_open -# define __NR_perf_event_open 336 -#endif -#ifndef __NR_futex -# define __NR_futex 240 -#endif -#ifndef __NR_gettid -# define __NR_gettid 224 -#endif #endif #if defined(__x86_64__) #define cpu_relax() asm volatile("rep; nop" ::: "memory"); #define CPUINFO_PROC {"model name"} -#ifndef __NR_perf_event_open -# define __NR_perf_event_open 298 -#endif -#ifndef __NR_futex -# define __NR_futex 202 -#endif -#ifndef __NR_gettid -# define __NR_gettid 186 -#endif #endif #ifdef __powerpc__ diff --git a/tools/perf/util/include/asm/unistd_32.h b/tools/perf/util/include/asm/unistd_32.h deleted file mode 100644 index 8b137891791f..000000000000 --- a/tools/perf/util/include/asm/unistd_32.h +++ /dev/null @@ -1 +0,0 @@ - diff --git a/tools/perf/util/include/asm/unistd_64.h b/tools/perf/util/include/asm/unistd_64.h deleted file mode 100644 index 8b137891791f..000000000000 --- a/tools/perf/util/include/asm/unistd_64.h +++ /dev/null @@ -1 +0,0 @@ - From ecb99897516f0bb433f3e79df3b1958c80ac4810 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Thu, 19 Jul 2018 15:35:58 +0200 Subject: [PATCH 4/4] Linux 4.4.142 --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index 3fc39e41dbde..75d6176c8786 100644 --- a/Makefile +++ b/Makefile @@ -1,6 +1,6 @@ VERSION = 4 PATCHLEVEL = 4 -SUBLEVEL = 141 +SUBLEVEL = 142 EXTRAVERSION = NAME = Blurry Fish Butt