linux_dsm_epyc7002/arch/h8300/lib/memset.S
Geert Uytterhoeven db5ede6f5e h8300: Hardcode symbol prefixes in asm sources
Commit e1b5bb6d12 ("consolidate cond_syscall
and SYSCALL_ALIAS declarations") broke the h8300 build because it removed
the duplicate SYMBOL_NAME() macro from arch/h8300/include/asm/linkage.h,
and all the h8300 asm files include <asm/linkage.h> instead of
<linux/linkage.h>:

    arch/h8300/kernel/entry.S: Assembler messages:
    arch/h8300/kernel/entry.S:158: Error: junk at end of line, first unrecognized character is `('
    ...
    arch/h8300/kernel/syscalls.S: Assembler messages:
    arch/h8300/kernel/syscalls.S:6: Error: junk at end of line, first unrecognized character is `('
    ...
    arch/h8300/lib/abs.S: Assembler messages:
    arch/h8300/lib/abs.S:12: Error: junk at end of line, first unrecognized character is `('
    ...
    arch/h8300/lib/memcpy.S: Assembler messages:
    arch/h8300/lib/memcpy.S:13: Error: junk at end of line, first unrecognized character is `('
    ...
    arch/h8300/lib/memset.S: Assembler messages:
    arch/h8300/lib/memset.S:13: Error: junk at end of line, first unrecognized character is `('
    ...

Commit 126de6b20b ("linkage.h: fix build
breakage due to symbol prefix handling") broke it even more, by removing
SYMBOL_NAME() and replacing it by __SYMBOL_NAME().

Commit f8ce1faf55 ("Merge tag
'modules-next-for-linus' of
git://git.kernel.org/pub/scm/linuxkernel/git/rusty/linux")
also removed __SYMBOL_NAME(), hidden in a merge conflict resolution.

Hence, replace the use of SYMBOL_NAME() and SYMBOL_NAME_LABEL() in h8300
assembler sources by hardcoding the underscore symbol prefix, like other
architectures (blackfin/metag) do.

This allows to kill SYMBOL_NAME_LABEL(). Now <asm/linkage.h> becomes empty,
and h8300 can be switched to asm-generic/linkage.h.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2013-06-23 15:54:56 +02:00

62 lines
718 B
ArmAsm

/* memset.S */
#include <asm/linkage.h>
#if defined(__H8300H__)
.h8300h
#endif
#if defined(__H8300S__)
.h8300s
#endif
.text
.global _memset
;;void *memset(*ptr, int c, size_t count)
;; ptr = er0
;; c = er1(r1l)
;; count = er2
_memset:
btst #0,r0l
beq 2f
;; odd address
1:
mov.b r1l,@er0
adds #1,er0
dec.l #1,er2
beq 6f
;; even address
2:
mov.l er2,er3
cmp.l #4,er2
blo 4f
;; count>=4 -> count/4
#if defined(__H8300H__)
shlr.l er2
shlr.l er2
#endif
#if defined(__H8300S__)
shlr.l #2,er2
#endif
;; byte -> long
mov.b r1l,r1h
mov.w r1,e1
3:
mov.l er1,@er0
adds #4,er0
dec.l #1,er2
bne 3b
4:
;; count % 4
and.b #3,r3l
beq 6f
5:
mov.b r1l,@er0
adds #1,er0
dec.b r3l
bne 5b
6:
rts