device: add support for the samsung tab 3 7.0 (#1484)
This commit is contained in:
george99g
Oliver Smith
parent
69b420980c
commit
58d5431079
|
|
@ -0,0 +1,22 @@
|
|||
# Reference: <https://postmarketos.org/devicepkg>
|
||||
pkgname="device-samsung-lt023g"
|
||||
pkgdesc="Galaxy Tab 3 7.0"
|
||||
pkgver=0.1
|
||||
pkgrel=0
|
||||
url="https://postmarketos.org"
|
||||
license="MIT"
|
||||
arch="noarch"
|
||||
options="!check"
|
||||
depends="postmarketos-base linux-samsung-lt023g mkbootimg mesa-dri-swrast"
|
||||
makedepends="devicepkg-dev"
|
||||
source="deviceinfo"
|
||||
|
||||
build() {
|
||||
devicepkg_build $startdir $pkgname
|
||||
}
|
||||
|
||||
package() {
|
||||
devicepkg_package $startdir $pkgname
|
||||
}
|
||||
|
||||
sha512sums="ff4503de63f710080a335289c31457740b4d2583e3d69606903c17fd2454708f5f039858e171d10986b50f70b801c17e10bbaab36c40f124948b1c016ae07bc2 deviceinfo"
|
||||
|
|
@ -0,0 +1,34 @@
|
|||
# Reference: <https://postmarketos.org/deviceinfo>
|
||||
# Please use double quotes only. You can source this file in shell scripts.
|
||||
|
||||
deviceinfo_format_version="0"
|
||||
deviceinfo_name="Galaxy Tab 3 7.0"
|
||||
deviceinfo_manufacturer="Samsung"
|
||||
deviceinfo_date="June 24, 2013"
|
||||
deviceinfo_dtb=""
|
||||
deviceinfo_modules_initfs=""
|
||||
deviceinfo_arch="armhf"
|
||||
|
||||
# Device related
|
||||
deviceinfo_keyboard="false"
|
||||
deviceinfo_external_storage="true"
|
||||
deviceinfo_screen_width="1024"
|
||||
deviceinfo_screen_height="600"
|
||||
deviceinfo_dev_touchscreen="/dev/input/event0"
|
||||
deviceinfo_dev_touchscreen_calibration=""
|
||||
deviceinfo_dev_keyboard=""
|
||||
|
||||
# Bootloader related
|
||||
deviceinfo_flash_method="heimdall-bootimg"
|
||||
deviceinfo_kernel_cmdline=""
|
||||
deviceinfo_generate_bootimg="true"
|
||||
deviceinfo_bootimg_qcdt="false"
|
||||
deviceinfo_flash_offset_base="0x10000000"
|
||||
deviceinfo_flash_offset_kernel="0x00008000"
|
||||
deviceinfo_flash_offset_ramdisk="0x01000000"
|
||||
deviceinfo_flash_offset_second="0x00f00000"
|
||||
deviceinfo_flash_offset_tags="0x00000100"
|
||||
deviceinfo_flash_pagesize="2048"
|
||||
deviceinfo_flash_heimdall_partition_kernel="KERNEL"
|
||||
deviceinfo_flash_heimdall_partition_system="SYSTEM"
|
||||
|
||||
|
|
@ -0,0 +1,80 @@
|
|||
From 418df63adac56841ef6b0f1fcf435bc64d4ed177 Mon Sep 17 00:00:00 2001
|
||||
From: Nicolas Pitre <nicolas.pitre@linaro.org>
|
||||
Date: Tue, 12 Mar 2013 13:00:42 +0100
|
||||
Subject: [PATCH] ARM: 7670/1: fix the memset fix
|
||||
|
||||
Commit 455bd4c430b0 ("ARM: 7668/1: fix memset-related crashes caused by
|
||||
recent GCC (4.7.2) optimizations") attempted to fix a compliance issue
|
||||
with the memset return value. However the memset itself became broken
|
||||
by that patch for misaligned pointers.
|
||||
|
||||
This fixes the above by branching over the entry code from the
|
||||
misaligned fixup code to avoid reloading the original pointer.
|
||||
|
||||
Also, because the function entry alignment is wrong in the Thumb mode
|
||||
compilation, that fixup code is moved to the end.
|
||||
|
||||
While at it, the entry instructions are slightly reworked to help dual
|
||||
issue pipelines.
|
||||
|
||||
Signed-off-by: Nicolas Pitre <nico@linaro.org>
|
||||
Tested-by: Alexander Holler <holler@ahsoftware.de>
|
||||
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
|
||||
---
|
||||
arch/arm/lib/memset.S | 33 +++++++++++++--------------------
|
||||
1 file changed, 13 insertions(+), 20 deletions(-)
|
||||
|
||||
diff --git a/arch/arm/lib/memset.S b/arch/arm/lib/memset.S
|
||||
index d912e7397ecc9..94b0650ea98fd 100644
|
||||
--- a/arch/arm/lib/memset.S
|
||||
+++ b/arch/arm/lib/memset.S
|
||||
@@ -14,31 +14,15 @@
|
||||
|
||||
.text
|
||||
.align 5
|
||||
- .word 0
|
||||
-
|
||||
-1: subs r2, r2, #4 @ 1 do we have enough
|
||||
- blt 5f @ 1 bytes to align with?
|
||||
- cmp r3, #2 @ 1
|
||||
- strltb r1, [ip], #1 @ 1
|
||||
- strleb r1, [ip], #1 @ 1
|
||||
- strb r1, [ip], #1 @ 1
|
||||
- add r2, r2, r3 @ 1 (r2 = r2 - (4 - r3))
|
||||
-/*
|
||||
- * The pointer is now aligned and the length is adjusted. Try doing the
|
||||
- * memset again.
|
||||
- */
|
||||
|
||||
ENTRY(memset)
|
||||
-/*
|
||||
- * Preserve the contents of r0 for the return value.
|
||||
- */
|
||||
- mov ip, r0
|
||||
- ands r3, ip, #3 @ 1 unaligned?
|
||||
- bne 1b @ 1
|
||||
+ ands r3, r0, #3 @ 1 unaligned?
|
||||
+ mov ip, r0 @ preserve r0 as return value
|
||||
+ bne 6f @ 1
|
||||
/*
|
||||
* we know that the pointer in ip is aligned to a word boundary.
|
||||
*/
|
||||
- orr r1, r1, r1, lsl #8
|
||||
+1: orr r1, r1, r1, lsl #8
|
||||
orr r1, r1, r1, lsl #16
|
||||
mov r3, r1
|
||||
cmp r2, #16
|
||||
@@ -127,4 +111,13 @@ ENTRY(memset)
|
||||
tst r2, #1
|
||||
strneb r1, [ip], #1
|
||||
mov pc, lr
|
||||
+
|
||||
+6: subs r2, r2, #4 @ 1 do we have enough
|
||||
+ blt 5b @ 1 bytes to align with?
|
||||
+ cmp r3, #2 @ 1
|
||||
+ strltb r1, [ip], #1 @ 1
|
||||
+ strleb r1, [ip], #1 @ 1
|
||||
+ strb r1, [ip], #1 @ 1
|
||||
+ add r2, r2, r3 @ 1 (r2 = r2 - (4 - r3))
|
||||
+ b 1b
|
||||
ENDPROC(memset)
|
||||
|
|
@ -0,0 +1,252 @@
|
|||
From 455bd4c430b0c0a361f38e8658a0d6cb469942b5 Mon Sep 17 00:00:00 2001
|
||||
From: Ivan Djelic <ivan.djelic@parrot.com>
|
||||
Date: Wed, 6 Mar 2013 20:09:27 +0100
|
||||
Subject: [PATCH] ARM: 7668/1: fix memset-related crashes caused by recent GCC
|
||||
(4.7.2) optimizations
|
||||
|
||||
Recent GCC versions (e.g. GCC-4.7.2) perform optimizations based on
|
||||
assumptions about the implementation of memset and similar functions.
|
||||
The current ARM optimized memset code does not return the value of
|
||||
its first argument, as is usually expected from standard implementations.
|
||||
|
||||
For instance in the following function:
|
||||
|
||||
void debug_mutex_lock_common(struct mutex *lock, struct mutex_waiter *waiter)
|
||||
{
|
||||
memset(waiter, MUTEX_DEBUG_INIT, sizeof(*waiter));
|
||||
waiter->magic = waiter;
|
||||
INIT_LIST_HEAD(&waiter->list);
|
||||
}
|
||||
|
||||
compiled as:
|
||||
|
||||
800554d0 <debug_mutex_lock_common>:
|
||||
800554d0: e92d4008 push {r3, lr}
|
||||
800554d4: e1a00001 mov r0, r1
|
||||
800554d8: e3a02010 mov r2, #16 ; 0x10
|
||||
800554dc: e3a01011 mov r1, #17 ; 0x11
|
||||
800554e0: eb04426e bl 80165ea0 <memset>
|
||||
800554e4: e1a03000 mov r3, r0
|
||||
800554e8: e583000c str r0, [r3, #12]
|
||||
800554ec: e5830000 str r0, [r3]
|
||||
800554f0: e5830004 str r0, [r3, #4]
|
||||
800554f4: e8bd8008 pop {r3, pc}
|
||||
|
||||
GCC assumes memset returns the value of pointer 'waiter' in register r0; causing
|
||||
register/memory corruptions.
|
||||
|
||||
This patch fixes the return value of the assembly version of memset.
|
||||
It adds a 'mov' instruction and merges an additional load+store into
|
||||
existing load/store instructions.
|
||||
For ease of review, here is a breakdown of the patch into 4 simple steps:
|
||||
|
||||
Step 1
|
||||
======
|
||||
Perform the following substitutions:
|
||||
ip -> r8, then
|
||||
r0 -> ip,
|
||||
and insert 'mov ip, r0' as the first statement of the function.
|
||||
At this point, we have a memset() implementation returning the proper result,
|
||||
but corrupting r8 on some paths (the ones that were using ip).
|
||||
|
||||
Step 2
|
||||
======
|
||||
Make sure r8 is saved and restored when (! CALGN(1)+0) == 1:
|
||||
|
||||
save r8:
|
||||
- str lr, [sp, #-4]!
|
||||
+ stmfd sp!, {r8, lr}
|
||||
|
||||
and restore r8 on both exit paths:
|
||||
- ldmeqfd sp!, {pc} @ Now <64 bytes to go.
|
||||
+ ldmeqfd sp!, {r8, pc} @ Now <64 bytes to go.
|
||||
(...)
|
||||
tst r2, #16
|
||||
stmneia ip!, {r1, r3, r8, lr}
|
||||
- ldr lr, [sp], #4
|
||||
+ ldmfd sp!, {r8, lr}
|
||||
|
||||
Step 3
|
||||
======
|
||||
Make sure r8 is saved and restored when (! CALGN(1)+0) == 0:
|
||||
|
||||
save r8:
|
||||
- stmfd sp!, {r4-r7, lr}
|
||||
+ stmfd sp!, {r4-r8, lr}
|
||||
|
||||
and restore r8 on both exit paths:
|
||||
bgt 3b
|
||||
- ldmeqfd sp!, {r4-r7, pc}
|
||||
+ ldmeqfd sp!, {r4-r8, pc}
|
||||
(...)
|
||||
tst r2, #16
|
||||
stmneia ip!, {r4-r7}
|
||||
- ldmfd sp!, {r4-r7, lr}
|
||||
+ ldmfd sp!, {r4-r8, lr}
|
||||
|
||||
Step 4
|
||||
======
|
||||
Rewrite register list "r4-r7, r8" as "r4-r8".
|
||||
|
||||
Signed-off-by: Ivan Djelic <ivan.djelic@parrot.com>
|
||||
Reviewed-by: Nicolas Pitre <nico@linaro.org>
|
||||
Signed-off-by: Dirk Behme <dirk.behme@gmail.com>
|
||||
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
|
||||
---
|
||||
arch/arm/lib/memset.S | 85 ++++++++++++++++++++++++++-------------------------
|
||||
1 file changed, 44 insertions(+), 41 deletions(-)
|
||||
|
||||
diff --git a/arch/arm/lib/memset.S b/arch/arm/lib/memset.S
|
||||
index 650d5923ab83c..d912e7397ecc9 100644
|
||||
--- a/arch/arm/lib/memset.S
|
||||
+++ b/arch/arm/lib/memset.S
|
||||
@@ -19,9 +19,9 @@
|
||||
1: subs r2, r2, #4 @ 1 do we have enough
|
||||
blt 5f @ 1 bytes to align with?
|
||||
cmp r3, #2 @ 1
|
||||
- strltb r1, [r0], #1 @ 1
|
||||
- strleb r1, [r0], #1 @ 1
|
||||
- strb r1, [r0], #1 @ 1
|
||||
+ strltb r1, [ip], #1 @ 1
|
||||
+ strleb r1, [ip], #1 @ 1
|
||||
+ strb r1, [ip], #1 @ 1
|
||||
add r2, r2, r3 @ 1 (r2 = r2 - (4 - r3))
|
||||
/*
|
||||
* The pointer is now aligned and the length is adjusted. Try doing the
|
||||
@@ -29,10 +29,14 @@
|
||||
*/
|
||||
|
||||
ENTRY(memset)
|
||||
- ands r3, r0, #3 @ 1 unaligned?
|
||||
+/*
|
||||
+ * Preserve the contents of r0 for the return value.
|
||||
+ */
|
||||
+ mov ip, r0
|
||||
+ ands r3, ip, #3 @ 1 unaligned?
|
||||
bne 1b @ 1
|
||||
/*
|
||||
- * we know that the pointer in r0 is aligned to a word boundary.
|
||||
+ * we know that the pointer in ip is aligned to a word boundary.
|
||||
*/
|
||||
orr r1, r1, r1, lsl #8
|
||||
orr r1, r1, r1, lsl #16
|
||||
@@ -43,29 +47,28 @@ ENTRY(memset)
|
||||
#if ! CALGN(1)+0
|
||||
|
||||
/*
|
||||
- * We need an extra register for this loop - save the return address and
|
||||
- * use the LR
|
||||
+ * We need 2 extra registers for this loop - use r8 and the LR
|
||||
*/
|
||||
- str lr, [sp, #-4]!
|
||||
- mov ip, r1
|
||||
+ stmfd sp!, {r8, lr}
|
||||
+ mov r8, r1
|
||||
mov lr, r1
|
||||
|
||||
2: subs r2, r2, #64
|
||||
- stmgeia r0!, {r1, r3, ip, lr} @ 64 bytes at a time.
|
||||
- stmgeia r0!, {r1, r3, ip, lr}
|
||||
- stmgeia r0!, {r1, r3, ip, lr}
|
||||
- stmgeia r0!, {r1, r3, ip, lr}
|
||||
+ stmgeia ip!, {r1, r3, r8, lr} @ 64 bytes at a time.
|
||||
+ stmgeia ip!, {r1, r3, r8, lr}
|
||||
+ stmgeia ip!, {r1, r3, r8, lr}
|
||||
+ stmgeia ip!, {r1, r3, r8, lr}
|
||||
bgt 2b
|
||||
- ldmeqfd sp!, {pc} @ Now <64 bytes to go.
|
||||
+ ldmeqfd sp!, {r8, pc} @ Now <64 bytes to go.
|
||||
/*
|
||||
* No need to correct the count; we're only testing bits from now on
|
||||
*/
|
||||
tst r2, #32
|
||||
- stmneia r0!, {r1, r3, ip, lr}
|
||||
- stmneia r0!, {r1, r3, ip, lr}
|
||||
+ stmneia ip!, {r1, r3, r8, lr}
|
||||
+ stmneia ip!, {r1, r3, r8, lr}
|
||||
tst r2, #16
|
||||
- stmneia r0!, {r1, r3, ip, lr}
|
||||
- ldr lr, [sp], #4
|
||||
+ stmneia ip!, {r1, r3, r8, lr}
|
||||
+ ldmfd sp!, {r8, lr}
|
||||
|
||||
#else
|
||||
|
||||
@@ -74,54 +77,54 @@ ENTRY(memset)
|
||||
* whole cache lines at once.
|
||||
*/
|
||||
|
||||
- stmfd sp!, {r4-r7, lr}
|
||||
+ stmfd sp!, {r4-r8, lr}
|
||||
mov r4, r1
|
||||
mov r5, r1
|
||||
mov r6, r1
|
||||
mov r7, r1
|
||||
- mov ip, r1
|
||||
+ mov r8, r1
|
||||
mov lr, r1
|
||||
|
||||
cmp r2, #96
|
||||
- tstgt r0, #31
|
||||
+ tstgt ip, #31
|
||||
ble 3f
|
||||
|
||||
- and ip, r0, #31
|
||||
- rsb ip, ip, #32
|
||||
- sub r2, r2, ip
|
||||
- movs ip, ip, lsl #(32 - 4)
|
||||
- stmcsia r0!, {r4, r5, r6, r7}
|
||||
- stmmiia r0!, {r4, r5}
|
||||
- tst ip, #(1 << 30)
|
||||
- mov ip, r1
|
||||
- strne r1, [r0], #4
|
||||
+ and r8, ip, #31
|
||||
+ rsb r8, r8, #32
|
||||
+ sub r2, r2, r8
|
||||
+ movs r8, r8, lsl #(32 - 4)
|
||||
+ stmcsia ip!, {r4, r5, r6, r7}
|
||||
+ stmmiia ip!, {r4, r5}
|
||||
+ tst r8, #(1 << 30)
|
||||
+ mov r8, r1
|
||||
+ strne r1, [ip], #4
|
||||
|
||||
3: subs r2, r2, #64
|
||||
- stmgeia r0!, {r1, r3-r7, ip, lr}
|
||||
- stmgeia r0!, {r1, r3-r7, ip, lr}
|
||||
+ stmgeia ip!, {r1, r3-r8, lr}
|
||||
+ stmgeia ip!, {r1, r3-r8, lr}
|
||||
bgt 3b
|
||||
- ldmeqfd sp!, {r4-r7, pc}
|
||||
+ ldmeqfd sp!, {r4-r8, pc}
|
||||
|
||||
tst r2, #32
|
||||
- stmneia r0!, {r1, r3-r7, ip, lr}
|
||||
+ stmneia ip!, {r1, r3-r8, lr}
|
||||
tst r2, #16
|
||||
- stmneia r0!, {r4-r7}
|
||||
- ldmfd sp!, {r4-r7, lr}
|
||||
+ stmneia ip!, {r4-r7}
|
||||
+ ldmfd sp!, {r4-r8, lr}
|
||||
|
||||
#endif
|
||||
|
||||
4: tst r2, #8
|
||||
- stmneia r0!, {r1, r3}
|
||||
+ stmneia ip!, {r1, r3}
|
||||
tst r2, #4
|
||||
- strne r1, [r0], #4
|
||||
+ strne r1, [ip], #4
|
||||
/*
|
||||
* When we get here, we've got less than 4 bytes to zero. We
|
||||
* may have an unaligned pointer as well.
|
||||
*/
|
||||
5: tst r2, #2
|
||||
- strneb r1, [r0], #1
|
||||
- strneb r1, [r0], #1
|
||||
+ strneb r1, [ip], #1
|
||||
+ strneb r1, [ip], #1
|
||||
tst r2, #1
|
||||
- strneb r1, [r0], #1
|
||||
+ strneb r1, [ip], #1
|
||||
mov pc, lr
|
||||
ENDPROC(memset)
|
||||
|
|
@ -0,0 +1,88 @@
|
|||
# Kernel config based on: arch/arm/configs/pxa986_lt023g_blackhawk_defconfig
|
||||
|
||||
pkgname="linux-samsung-lt023g"
|
||||
pkgver=3.4.5
|
||||
pkgrel=0
|
||||
pkgdesc="Samsung Galaxy Tab 3 7.0 kernel fork"
|
||||
arch="armhf"
|
||||
_carch="arm"
|
||||
_flavor="samsung-lt023g"
|
||||
url="https://github.com/kumajaya/android_kernel_samsung_lt02"
|
||||
license="GPL2"
|
||||
options="!strip !check !tracedeps"
|
||||
makedepends="perl sed installkernel bash gmp-dev bc linux-headers elfutils-dev"
|
||||
HOSTCC="${CC:-gcc}"
|
||||
HOSTCC="${HOSTCC#${CROSS_COMPILE}}"
|
||||
|
||||
# Source
|
||||
_repository="android_kernel_samsung_lt02"
|
||||
_commit="c6fb6f677aa195b07348eb7777322ca956f9c44c"
|
||||
_config="config-${_flavor}.${arch}"
|
||||
source="
|
||||
$pkgname-$_commit.tar.gz::https://github.com/kumajaya/${_repository}/archive/${_commit}.tar.gz
|
||||
$_config
|
||||
compiler-gcc6.h
|
||||
timeconst_fix.patch
|
||||
455bd4c430b0c0a361f38e8658a0d6cb469942b5.patch
|
||||
418df63adac56841ef6b0f1fcf435bc64d4ed177.patch
|
||||
"
|
||||
builddir="$srcdir/${_repository}-${_commit}"
|
||||
|
||||
prepare() {
|
||||
default_prepare
|
||||
|
||||
# gcc6 support
|
||||
cp -v "$srcdir/compiler-gcc6.h" "$builddir/include/linux/"
|
||||
|
||||
# Remove -Werror from all makefiles
|
||||
local i
|
||||
local makefiles="$(find . -type f -name Makefile)
|
||||
$(find . -type f -name Kbuild)"
|
||||
for i in $makefiles; do
|
||||
sed -i 's/-Werror-/-W/g' "$i"
|
||||
sed -i 's/-Werror//g' "$i"
|
||||
done
|
||||
|
||||
# Prepare kernel config ('yes ""' for kernels lacking olddefconfig)
|
||||
cp "$srcdir"/$_config "$builddir"/.config
|
||||
yes "" | make ARCH="$_carch" HOSTCC="$HOSTCC" oldconfig
|
||||
}
|
||||
|
||||
menuconfig() {
|
||||
cd "$builddir"
|
||||
make ARCH="$_carch" menuconfig
|
||||
cp .config "$startdir"/$_config
|
||||
}
|
||||
|
||||
build() {
|
||||
unset LDFLAGS
|
||||
make ARCH="$_carch" CC="${CC:-gcc}" \
|
||||
KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-postmarketOS"
|
||||
}
|
||||
|
||||
package() {
|
||||
# kernel.release
|
||||
install -D "$builddir/include/config/kernel.release" \
|
||||
"$pkgdir/usr/share/kernel/$_flavor/kernel.release"
|
||||
|
||||
# zImage (find the right one)
|
||||
cd "$builddir/arch/$_carch/boot"
|
||||
_target="$pkgdir/boot/vmlinuz-$_flavor"
|
||||
for _zimg in zImage-dtb Image.gz-dtb *zImage Image; do
|
||||
[ -e "$_zimg" ] || continue
|
||||
msg "zImage found: $_zimg"
|
||||
install -Dm644 "$_zimg" "$_target"
|
||||
break
|
||||
done
|
||||
if ! [ -e "$_target" ]; then
|
||||
error "Could not find zImage in $PWD!"
|
||||
return 1
|
||||
fi
|
||||
}
|
||||
|
||||
sha512sums="41b0dc94d29e1ad75bcb309aebefc58302b5176be30cafd827b7f69b44805b84d44de93dfc363e671a421623ad2b6d264edbc74976106ba52f0c249d268622f1 linux-samsung-lt023g-c6fb6f677aa195b07348eb7777322ca956f9c44c.tar.gz
|
||||
8b0c70ed3e3a9f0fb57722437dd76342f0cd5a4a1a6a2fbc7a30ee13fa6a025f0e25f5de227abba2b0b8375708c30f2a32f6731764682e05a539fb1ec1342b33 config-samsung-lt023g.armhf
|
||||
d80980e9474c82ba0ef1a6903b434d8bd1b092c40367ba543e72d2c119301c8b2d05265740e4104ca1ac5d15f6c4aa49e8776cb44264a9a28dc551e0d1850dcc compiler-gcc6.h
|
||||
7191d532df8f6a8bf64b5b5bcaa7343c8d1b844c891a67fc6d29f421903ddd46c3e779a6f5a5833a6a8f635d1582f5224fa795b3912b8b211a90ee561ad31469 timeconst_fix.patch
|
||||
efd1641c0892fddb9c5feea3e49e534fed311b01f0576688b5af766e0160850822d0eb8e296b08c5f82b586d5d0336a98e8e86707ba9af7fcf36fc89f0b288eb 455bd4c430b0c0a361f38e8658a0d6cb469942b5.patch
|
||||
5c080c27716d124616e4e684fc63bffb2665f00de06e894dfd78f58588feec2fec858fe8234b054061e3db14d28cb90fbac53f4b54c4fac5946d843cf038386c 418df63adac56841ef6b0f1fcf435bc64d4ed177.patch"
|
||||
|
|
@ -0,0 +1,69 @@
|
|||
// SOURCE:
|
||||
// https://github.com/NextThingCo/CHIP-u-boot/issues/10#issuecomment-287515505
|
||||
|
||||
#ifndef __LINUX_COMPILER_H
|
||||
#error "Please don't include <linux/compiler-gcc6.h> directly, include <linux/compiler.h> instead."
|
||||
#endif
|
||||
|
||||
#define __used __attribute__((__used__))
|
||||
#define __must_check __attribute__((warn_unused_result))
|
||||
#define __compiler_offsetof(a, b) __builtin_offsetof(a, b)
|
||||
|
||||
/* Mark functions as cold. gcc will assume any path leading to a call
|
||||
to them will be unlikely. This means a lot of manual unlikely()s
|
||||
are unnecessary now for any paths leading to the usual suspects
|
||||
like BUG(), printk(), panic() etc. [but let's keep them for now for
|
||||
older compilers]
|
||||
|
||||
Early snapshots of gcc 4.3 don't support this and we can't detect this
|
||||
in the preprocessor, but we can live with this because they're unreleased.
|
||||
Maketime probing would be overkill here.
|
||||
|
||||
gcc also has a __attribute__((__hot__)) to move hot functions into
|
||||
a special section, but I don't see any sense in this right now in
|
||||
the kernel context */
|
||||
#define __cold __attribute__((__cold__))
|
||||
|
||||
#define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __COUNTER__)
|
||||
|
||||
#ifndef __CHECKER__
|
||||
# define __compiletime_warning(message) __attribute__((warning(message)))
|
||||
# define __compiletime_error(message) __attribute__((error(message)))
|
||||
#endif /* __CHECKER__ */
|
||||
|
||||
/*
|
||||
* Mark a position in code as unreachable. This can be used to
|
||||
* suppress control flow warnings after asm blocks that transfer
|
||||
* control elsewhere.
|
||||
*
|
||||
* Early snapshots of gcc 4.5 don't support this and we can't detect
|
||||
* this in the preprocessor, but we can live with this because they're
|
||||
* unreleased. Really, we need to have autoconf for the kernel.
|
||||
*/
|
||||
#define unreachable() __builtin_unreachable()
|
||||
|
||||
/* Mark a function definition as prohibited from being cloned. */
|
||||
#define __noclone __attribute__((__noclone__))
|
||||
|
||||
/*
|
||||
* Tell the optimizer that something else uses this function or variable.
|
||||
*/
|
||||
#define __visible __attribute__((externally_visible))
|
||||
|
||||
/*
|
||||
* GCC 'asm goto' miscompiles certain code sequences:
|
||||
*
|
||||
* http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58670
|
||||
*
|
||||
* Work it around via a compiler barrier quirk suggested by Jakub Jelinek.
|
||||
*
|
||||
* (asm goto is automatically volatile - the naming reflects this.)
|
||||
*/
|
||||
#define asm_volatile_goto(x...) do { asm goto(x); asm (""); } while (0)
|
||||
|
||||
#ifdef CONFIG_ARCH_USE_BUILTIN_BSWAP
|
||||
#define __HAVE_BUILTIN_BSWAP32__
|
||||
#define __HAVE_BUILTIN_BSWAP64__
|
||||
#define __HAVE_BUILTIN_BSWAP16__
|
||||
#endif /* CONFIG_ARCH_USE_BUILTIN_BSWAP */
|
||||
|
||||
File diff suppressed because it is too large
Load Diff
|
|
@ -0,0 +1,17 @@
|
|||
diff --git a/kernel/timeconst.pl b/kernel/timeconst.pl
|
||||
index eb51d76e058a4..3f42652a6a374 100644
|
||||
--- a/kernel/timeconst.pl
|
||||
+++ b/kernel/timeconst.pl
|
||||
@@ -369,10 +369,8 @@ (@)
|
||||
die "Usage: $0 HZ\n";
|
||||
}
|
||||
|
||||
- @val = @{$canned_values{$hz}};
|
||||
- if (!defined(@val)) {
|
||||
- @val = compute_values($hz);
|
||||
- }
|
||||
+ $cv = $canned_values{$hz};
|
||||
+ @val = defined($cv) ? @$cv : compute_values($hz);
|
||||
output($hz, @val);
|
||||
}
|
||||
exit 0;
|
||||
Loading…
Reference in New Issue