diff options
| author | Ivan Kokshaysky <ink@unseen.parts> | 2025-02-04 23:35:22 +0100 |
|---|---|---|
| committer | Matt Turner <mattst88@gmail.com> | 2025-02-14 14:03:40 -0500 |
| commit | 77b823fa619f97d16409ca37ad4f7936e28c5f83 (patch) | |
| tree | ee04cfd3bfd530743790f0f7872e75c578e3523e | |
| parent | 128c8f96eb8638c060cd3532dc394d046ce64fe1 (diff) | |
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>
| -rw-r--r-- | arch/alpha/kernel/asm-offsets.c | 4 | ||||
| -rw-r--r-- | arch/alpha/kernel/entry.S | 4 |
2 files changed, 4 insertions, 4 deletions
diff --git a/arch/alpha/kernel/asm-offsets.c b/arch/alpha/kernel/asm-offsets.c index 4cfeae42c79a..e9dad60b147f 100644 --- a/arch/alpha/kernel/asm-offsets.c +++ b/arch/alpha/kernel/asm-offsets.c @@ -19,9 +19,13 @@ static void __used foo(void) 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)); } diff --git a/arch/alpha/kernel/entry.S b/arch/alpha/kernel/entry.S index dd26062d75b3..6fb38365539d 100644 --- a/arch/alpha/kernel/entry.S +++ b/arch/alpha/kernel/entry.S @@ -15,10 +15,6 @@ .set noat .cfi_sections .debug_frame -/* Stack offsets. */ -#define SP_OFF 184 -#define SWITCH_STACK_SIZE 64 - .macro CFI_START_OSF_FRAME func .align 4 .globl \func |