Import Pro1-X kernel source code

Author: NotKit

Makefile

@@ -319,7 +319,7 @@ include scripts/subarch.include
 # Alternatively CROSS_COMPILE can be set in the environment.
 # Default value for CROSS_COMPILE is not to prefix executables
 # Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile
-ARCH		:= arm64
+ARCH		?= $(SUBARCH)
 
 # Architecture as present in compile.h
 UTS_MACHINE 	:= $(ARCH)
@@ -366,7 +366,7 @@ HOSTCC	= gcc
 HOSTCXX	= g++
 endif
 KBUILD_HOSTCFLAGS   := -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 \
-		-fomit-frame-pointer -std=gnu89 -pipe $(HOST_LFS_CFLAGS) \
+		-fomit-frame-pointer -std=gnu89 $(HOST_LFS_CFLAGS) \
 		$(HOSTCFLAGS)
 KBUILD_HOSTCXXFLAGS := -O2 $(HOST_LFS_CFLAGS) $(HOSTCXXFLAGS)
 KBUILD_HOSTLDFLAGS  := $(HOST_LFS_LDFLAGS) $(HOSTLDFLAGS)
@@ -385,7 +385,7 @@ READELF		= llvm-readelf
 OBJSIZE		= llvm-size
 STRIP		= llvm-strip
 else
-CC		= $(CROSS_COMPILE)gcc
+REAL_CC		= $(CROSS_COMPILE)gcc
 LD		= $(CROSS_COMPILE)ld
 AR		= $(CROSS_COMPILE)ar
 NM		= $(CROSS_COMPILE)nm
@@ -409,7 +409,7 @@ CHECK		= sparse
 
 # Use the wrapper for the compiler.  This wrapper scans for new
 # warnings and causes the build to stop upon encountering them
-# CC		= $(PYTHON2) $(srctree)/scripts/gcc-wrapper.py $(REAL_CC)
+CC		= $(PYTHON) $(srctree)/scripts/gcc-wrapper.py $(REAL_CC)
 
 CHECKFLAGS     := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
 		  -Wbitwise -Wno-return-void -Wno-unknown-attribute $(CF)
@@ -439,7 +439,7 @@ LINUXINCLUDE    := \
 		$(USERINCLUDE)
 
 KBUILD_AFLAGS   := -D__ASSEMBLY__
-KBUILD_CFLAGS   := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs -pipe \
+KBUILD_CFLAGS   := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
 		   -fno-strict-aliasing -fno-common -fshort-wchar \
 		   -Werror-implicit-function-declaration \
 		   -Wno-format-security \
@@ -688,18 +688,11 @@ KBUILD_CFLAGS	+= $(call cc-disable-warning, format-truncation)
 KBUILD_CFLAGS	+= $(call cc-disable-warning, format-overflow)
 KBUILD_CFLAGS	+= $(call cc-disable-warning, int-in-bool-context)
 KBUILD_CFLAGS	+= $(call cc-disable-warning, address-of-packed-member)
-KBUILD_CFLAGS	+= $(call cc-disable-warning, attribute-alias)
-KBUILD_CFLAGS	+= $(call cc-disable-warning, packed-not-aligned)
-KBUILD_CFLAGS	+= $(call cc-disable-warning, psabi)
-KBUILD_CFLAGS	+= $(call cc-disable-warning, restrict)
-KBUILD_CFLAGS	+= $(call cc-disable-warning, stringop-overflow)
-KBUILD_CFLAGS	+= $(call cc-disable-warning, stringop-truncation)
-KBUILD_CFLAGS	+= $(call cc-disable-warning, zero-length-bounds)
 
 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
 KBUILD_CFLAGS   += -Os
 else
-KBUILD_CFLAGS   += -O3
+KBUILD_CFLAGS   += -O2
 endif
 
 # Tell gcc to never replace conditional load with a non-conditional one
@@ -961,6 +954,9 @@ KBUILD_CFLAGS	+= $(call cc-option,-fmerge-constants)
 # Make sure -fstack-check isn't enabled (like gentoo apparently did)
 KBUILD_CFLAGS  += $(call cc-option,-fno-stack-check,)
 
+# conserve stack if available
+KBUILD_CFLAGS   += $(call cc-option,-fconserve-stack)
+
 # disallow errors like 'EXPORT_GPL(foo);' with missing header
 KBUILD_CFLAGS   += $(call cc-option,-Werror=implicit-int)
 
@@ -1349,7 +1345,7 @@ headers_install: __headers
 	  $(error Headers not exportable for the $(SRCARCH) architecture))
 	$(Q)$(MAKE) $(hdr-inst)=include/uapi dst=include
 	$(Q)$(MAKE) $(hdr-inst)=arch/$(SRCARCH)/include/uapi $(hdr-dst)
-	$(Q)$(MAKE) $(hdr-inst)=techpack/audio/include/uapi dst=techpack/audio/include
+	$(Q)$(MAKE) $(hdr-inst)=techpack
 
 PHONY += headers_check_all
 headers_check_all: headers_install_all
@@ -1359,7 +1355,7 @@ PHONY += headers_check
 headers_check: headers_install
 	$(Q)$(MAKE) $(hdr-inst)=include/uapi dst=include HDRCHECK=1
 	$(Q)$(MAKE) $(hdr-inst)=arch/$(SRCARCH)/include/uapi $(hdr-dst) HDRCHECK=1
-	$(Q)$(MAKE) $(hdr-inst)=techpack/audio/include/uapi dst=techpack/audio/include HDRCHECK=1
+	$(Q)$(MAKE) $(hdr-inst)=techpack HDRCHECK=1
 
 # ---------------------------------------------------------------------------
 # Kernel selftest

arch/Kconfig

@@ -563,7 +563,6 @@ config CFI_CLANG_SHADOW
 
 config ARCH_SUPPORTS_SHADOW_CALL_STACK
 	bool
-	default y
 	help
 	  An architecture should select this if it supports Clang's Shadow
 	  Call Stack, has asm/scs.h, and implements runtime support for shadow
@@ -944,16 +943,6 @@ config STRICT_MODULE_RWX
 config ARCH_HAS_PHYS_TO_DMA
 	bool
 
-config ARCH_HAS_REFCOUNT_FULL
-	bool
-	select ARCH_HAS_REFCOUNT
-	help
-	  An architecture selects this when the optimized refcount_t
-	  implementation it provides covers all the cases that
-	  CONFIG_REFCOUNT_FULL covers as well, in which case it makes no
-	  sense to even offer CONFIG_REFCOUNT_FULL as a user selectable
-	  option.
-
 config ARCH_HAS_REFCOUNT
 	bool
 	help
@@ -967,7 +956,7 @@ config ARCH_HAS_REFCOUNT
 	  against bugs in reference counts.
 
 config REFCOUNT_FULL
-	bool "Perform full reference count validation at the expense of speed" if !ARCH_HAS_REFCOUNT_FULL
+	bool "Perform full reference count validation at the expense of speed"
 	help
 	  Enabling this switches the refcounting infrastructure from a fast
 	  unchecked atomic_t implementation to a fully state checked