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linux/arch/alpha/kernel/asm-offsets.c
Ivan Kokshaysky 77b823fa61 alpha: replace hardcoded stack offsets with autogenerated ones
This allows the assembly in entry.S to automatically keep in sync with
changes in the stack layout (struct pt_regs and struct switch_stack).

Cc: stable@vger.kernel.org
Tested-by: Maciej W. Rozycki <macro@orcam.me.uk>
Tested-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Maciej W. Rozycki <macro@orcam.me.uk>
Signed-off-by: Ivan Kokshaysky <ink@unseen.parts>
Signed-off-by: Matt Turner <mattst88@gmail.com>
2025-02-14 14:03:40 -05:00

31 lines
889 B
C

// SPDX-License-Identifier: GPL-2.0
/*
* Generate definitions needed by assembly language modules.
* This code generates raw asm output which is post-processed to extract
* and format the required data.
*/
#include <linux/types.h>
#include <linux/stddef.h>
#include <linux/sched.h>
#include <linux/ptrace.h>
#include <linux/kbuild.h>
#include <asm/machvec.h>
static void __used foo(void)
{
DEFINE(TI_FLAGS, offsetof(struct thread_info, flags));
DEFINE(TI_FP, offsetof(struct thread_info, fp));
DEFINE(TI_STATUS, offsetof(struct thread_info, status));
BLANK();
DEFINE(SP_OFF, offsetof(struct pt_regs, ps));
DEFINE(SIZEOF_PT_REGS, sizeof(struct pt_regs));
BLANK();
DEFINE(SWITCH_STACK_SIZE, sizeof(struct switch_stack));
BLANK();
DEFINE(HAE_CACHE, offsetof(struct alpha_machine_vector, hae_cache));
DEFINE(HAE_REG, offsetof(struct alpha_machine_vector, hae_register));
}