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| author | Ivan Kokshaysky <ink@unseen.parts> | 2025-02-04 23:35:22 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-02-21 13:50:10 +0100 |
| commit | 731fd4b06c091ae63dcd75a4b889a08ff40c4cd8 (patch) | |
| tree | 4cdc672b87fba271e83a2522c2bba3574f036d17 /arch/alpha | |
| parent | c986a5fb15eda49a45425efa2bc57b3b73841545 (diff) | |
| download | linux-731fd4b06c091ae63dcd75a4b889a08ff40c4cd8.tar.gz linux-731fd4b06c091ae63dcd75a4b889a08ff40c4cd8.tar.bz2 linux-731fd4b06c091ae63dcd75a4b889a08ff40c4cd8.zip | |
alpha: replace hardcoded stack offsets with autogenerated ones
commit 77b823fa619f97d16409ca37ad4f7936e28c5f83 upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/alpha')
| -rw-r--r-- | arch/alpha/kernel/asm-offsets.c | 2 | ||||
| -rw-r--r-- | arch/alpha/kernel/entry.S | 4 |
2 files changed, 2 insertions, 4 deletions
diff --git a/arch/alpha/kernel/asm-offsets.c b/arch/alpha/kernel/asm-offsets.c index 2e125e5c1508..05d9296af5ea 100644 --- a/arch/alpha/kernel/asm-offsets.c +++ b/arch/alpha/kernel/asm-offsets.c @@ -32,7 +32,9 @@ void foo(void) DEFINE(CRED_EGID, offsetof(struct cred, egid)); BLANK(); + DEFINE(SP_OFF, offsetof(struct pt_regs, ps)); DEFINE(SIZEOF_PT_REGS, sizeof(struct pt_regs)); + DEFINE(SWITCH_STACK_SIZE, sizeof(struct switch_stack)); DEFINE(PT_PTRACED, PT_PTRACED); DEFINE(CLONE_VM, CLONE_VM); DEFINE(CLONE_UNTRACED, CLONE_UNTRACED); diff --git a/arch/alpha/kernel/entry.S b/arch/alpha/kernel/entry.S index 351d6e60e566..ba99cc9d27c7 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 320 - .macro CFI_START_OSF_FRAME func .align 4 .globl \func |