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x86 asm: Replace .align with .balign

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The .align directive used to align storage locations is
ambiguous. On some platforms and assemblers it takes a byte count,
on others the argument is interpreted as a shift value. The current
usage expects the first interpretation.

Replace it with the unambiguous .balign directive which always
expects a byte count, regardless of platform and assembler.

Reviewed-by: Jorgen Lundman <lundman@lundman.net>
Reviewed-by: Tino Reichardt <milky-zfs@mcmilk.de>
Reviewed-by: Richard Yao <richard.yao@alumni.stonybrook.edu>
Signed-off-by: Attila Fülöp <attila@fueloep.org>
Closes #14422
This commit is contained in:
Attila Fülöp
2023-01-23 20:25:21 +01:00
committed by Brian Behlendorf
parent 58ca7b1011
commit 037e4f2536
16 changed files with 63 additions and 63 deletions
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include/os/linux/spl/sys/ia32/asm_linkage.h
+5 -5
View File
@@ -149,21 +149,21 @@ extern "C" {
#undef ENTRY
#define ENTRY(x) \
.text; \
.align ASM_ENTRY_ALIGN; \
.balign ASM_ENTRY_ALIGN; \
.globl x; \
.type x, @function; \
x: MCOUNT(x)
#define ENTRY_NP(x) \
.text; \
.align ASM_ENTRY_ALIGN; \
.balign ASM_ENTRY_ALIGN; \
.globl x; \
.type x, @function; \
x:
#define ENTRY_ALIGN(x, a) \
.text; \
.align a; \
.balign a; \
.globl x; \
.type x, @function; \
x:
@@ -177,7 +177,7 @@ x:
*/
#define ENTRY2(x, y) \
.text; \
.align ASM_ENTRY_ALIGN; \
.balign ASM_ENTRY_ALIGN; \
.globl x, y; \
.type x, @function; \
.type y, @function; \
@@ -186,7 +186,7 @@ y: MCOUNT(x)
#define ENTRY_NP2(x, y) \
.text; \
.align ASM_ENTRY_ALIGN; \
.balign ASM_ENTRY_ALIGN; \
.globl x, y; \
.type x, @function; \
.type y, @function; \