From: Michael Ellerman <mpe@ellerman.id.au>
To: <linuxppc-dev@lists.ozlabs.org>
Cc: npiggin@gmail.com
Subject: [PATCH 1/2] powerpc/vmlinux.lds: Ensure STRICT_ALIGN_SIZE is at least page aligned
Date: Fri, 16 Sep 2022 23:14:21 +1000 [thread overview]
Message-ID: <20220916131422.318752-1-mpe@ellerman.id.au> (raw)
Add a check that STRICT_ALIGN_SIZE is aligned to at least PAGE_SIZE.
That then makes the alignment to PAGE_SIZE immediately after the
alignment to STRICT_ALIGN_SIZE redundant, so remove it.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
---
arch/powerpc/kernel/vmlinux.lds.S | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S
index fe22d940412f..4e56fc0ee42a 100644
--- a/arch/powerpc/kernel/vmlinux.lds.S
+++ b/arch/powerpc/kernel/vmlinux.lds.S
@@ -32,6 +32,10 @@
#define STRICT_ALIGN_SIZE (1 << CONFIG_DATA_SHIFT)
+#if STRICT_ALIGN_SIZE < PAGE_SIZE
+#error "CONFIG_DATA_SHIFT must be >= PAGE_SIZE"
+#endif
+
ENTRY(_stext)
PHDRS {
@@ -215,7 +219,6 @@ SECTIONS
*/
. = ALIGN(STRICT_ALIGN_SIZE);
__init_begin = .;
- . = ALIGN(PAGE_SIZE);
.init.text : AT(ADDR(.init.text) - LOAD_OFFSET) {
_sinittext = .;
INIT_TEXT
--
2.37.2
next reply other threads:[~2022-09-16 13:15 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-16 13:14 Michael Ellerman [this message]
2022-09-16 13:14 ` [PATCH 2/2] powerpc/vmlinux.lds: Add an explicit symbol for the SRWX boundary Michael Ellerman
2022-09-16 13:32 ` [PATCH 1/2] powerpc/vmlinux.lds: Ensure STRICT_ALIGN_SIZE is at least page aligned Christophe Leroy
2022-09-17 6:40 ` Michael Ellerman
2022-10-04 13:24 ` Michael Ellerman
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