32 lines
704 B
Diff
32 lines
704 B
Diff
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diff --git a/arch/arm/mcount.S b/arch/arm/mcount.S
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index bbfc597..eb28831 100644
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--- a/arch/arm/mcount.S
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+++ b/arch/arm/mcount.S
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@@ -60,6 +60,26 @@ GLOBAL(__gnu_mcount_nc)
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bx ip
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END(__gnu_mcount_nc)
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+/* for clang */
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+GLOBAL(mcount)
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+ push {r0-r3, lr}
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+ ands r3, lr, #1 /* check lr for ARM/THUMB detection */
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+ add r0, fp, #4 /* r0 points to pushed LR */
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+ bne 1f
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+ ldr r1, [fp] /* fp (=r11) might point to return address on ARM */
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+ ldr r2, [r0]
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+ cmp r1, r2
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+ moveq r0, lr
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+1:
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+ mov r1, lr /* child ip */
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+ mov r2, sp /* mcount_args */
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+
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+ bl mcount_entry
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+
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+ pop {r0-r3, lr}
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+ bx lr
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+END(mcount)
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+
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ENTRY(mcount_return)
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push {r0-r3, lr, pc} /* ensure 8-byte alignment */
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