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ARM: 6315/1: ftrace: add ENDPROC annotations

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When building as Thumb-2, the ".type foo, %function" annotation in
ENDPROC seems to be required in order for the assembly routines to be
recognized as Thumb-2 code.  If the ENDPROC annotations are not present,
calls to these routines are generated as BLX instead of BL.

Acked-by: Catalin Marinas <[email protected]>
Signed-off-by: Rabin Vincent <[email protected]>
Signed-off-by: Russell King <[email protected]>
This commit is contained in:
Rabin Vincent 2010-08-10 19:33:52 +01:00 • committed by Russell King
commit 72fa62fa5d
1 changed files with 6 additions and 2 deletions
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8
arch/arm/kernel/entry-common.S
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@ -146,6 +146,7 @@ mcount_call:
bl ftrace_stub
ldr lr, [fp, #-4] @ restore lr
ldmia sp!, {r0-r3, pc}
ENDPROC(mcount)
ENTRY(ftrace_caller)
stmdb sp!, {r0-r3, lr}
@ -158,6 +159,7 @@ ftrace_call:
bl ftrace_stub
ldr lr, [fp, #-4] @ restore lr
ldmia sp!, {r0-r3, pc}
ENDPROC(ftrace_caller)
#else
@ -179,6 +181,7 @@ gnu_trace:
mov pc, r2
ldmia sp!, {r0-r3, ip, lr}
mov pc, ip
ENDPROC(__gnu_mcount_nc)
#ifdef CONFIG_OLD_MCOUNT
/*
@ -204,13 +207,14 @@ trace:
mov pc, r2
ldr lr, [fp, #-4] @ restore lr
ldmia sp!, {r0-r3, pc}
ENDPROC(mcount)
#endif
#endif /* CONFIG_DYNAMIC_FTRACE */
.globl ftrace_stub
ftrace_stub:
ENTRY(ftrace_stub)
mov pc, lr
ENDPROC(ftrace_stub)
#endif /* CONFIG_FUNCTION_TRACER */