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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 13:57:27 +0100 |
| commit | fd0d07cb8b4792668487201956044ea045e72fef (patch) | |
| tree | c69c9f87bb405feed0daa5eec503fe114776b23a /arch/alpha | |
| parent | 933b08c0edfa5c07408d3020cffb97115544e34a (diff) | |
| download | linux-fd0d07cb8b4792668487201956044ea045e72fef.tar.gz linux-fd0d07cb8b4792668487201956044ea045e72fef.tar.bz2 linux-fd0d07cb8b4792668487201956044ea045e72fef.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 b121294bee26..11c35cf45b46 100644 --- a/arch/alpha/kernel/asm-offsets.c +++ b/arch/alpha/kernel/asm-offsets.c @@ -34,7 +34,9 @@ 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 1f2b46b7e31b..602f701a1c39 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 |