linux/arch/arm64
Ard Biesheuvel 60699ba18b arm64: head.S: use ordinary stack frame for __primary_switched()
Instead of stashing the value of the link register in x28 before setting
up the stack and calling into C code, create an ordinary PCS compatible
stack frame so that we can push the return address onto the stack.

Since exception handlers require a stack as well, assign the stack pointer
register before installing the vector table.

Note that this accounts for the difference between THREAD_START_SP and
THREAD_SIZE, given that the stack pointer is always decremented before
calling into any C code.

Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-09-02 11:47:51 +01:00
..
boot ARM: SoC fixes 2016-08-11 14:14:23 -07:00
configs arm64: defconfig: enable CONFIG_LOCALVERSION_AUTO 2016-08-12 19:08:48 +01:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2016-03-17 11:22:54 -07:00
include arm64: remove duplicate macro __KERNEL__ check 2016-09-01 11:54:19 +01:00
kernel arm64: head.S: use ordinary stack frame for __primary_switched() 2016-09-02 11:47:51 +01:00
kvm KVM/ARM Changes for v4.8 - Take 2 2016-08-04 13:59:56 +02:00
lib arm64/uaccess: Enable hardened usercopy 2016-07-26 14:41:49 -07:00
mm arm64: hibernate: Support DEBUG_PAGEALLOC 2016-08-25 18:00:30 +01:00
net arm64: bpf: optimize LD_ABS, LD_IND 2016-06-10 23:11:50 -07:00
xen arm/xen: add support for vm_assist hypercall 2016-07-06 10:42:14 +01:00
Kconfig arm64: don't select PERF_USE_VMALLOC by default 2016-08-31 12:32:46 +01:00
Kconfig.debug arm64: always enable DEBUG_RODATA and remove the Kconfig option 2016-08-26 10:13:41 +01:00
Kconfig.platforms arm64: remove redundant "select HAVE_CLK" 2016-08-22 10:00:48 +01:00
Makefile arm64: Set UTS_MACHINE in the Makefile 2016-08-31 12:31:38 +01:00