uftrace: apply clang mcount hook patch

Was proposed in https://github.com/namhyung/uftrace/issues/851.

packages/uftrace/arm-clang-mcount-hook.patch

@@ -0,0 +1,31 @@
+diff --git a/arch/arm/mcount.S b/arch/arm/mcount.S
+index bbfc597..eb28831 100644
+--- a/arch/arm/mcount.S
++++ b/arch/arm/mcount.S
+@@ -60,6 +60,26 @@ GLOBAL(__gnu_mcount_nc)
+ 	bx	ip
+ END(__gnu_mcount_nc)
+ 
++/* for clang */
++GLOBAL(mcount)
++	push 	{r0-r3, lr}
++	ands	r3, lr, #1  /* check lr for ARM/THUMB detection */
++	add	r0, fp, #4  /* r0 points to pushed LR  */
++	bne	1f
++	ldr	r1, [fp]    /* fp (=r11) might point to return address on ARM */
++	ldr	r2, [r0]
++	cmp	r1, r2
++	moveq	r0, lr
++1:
++	mov 	r1, lr      /* child ip */
++	mov	r2, sp      /* mcount_args */
++
++	bl 	mcount_entry
++
++	pop 	{r0-r3, lr}
++	bx	lr
++END(mcount)
++
+ 
+ ENTRY(mcount_return)
+ 	push 	{r0-r3, lr, pc}  /* ensure 8-byte alignment */

packages/uftrace/build.sh

@@ -2,7 +2,7 @@ TERMUX_PKG_HOMEPAGE=https://uftrace.github.io/slide
 TERMUX_PKG_DESCRIPTION="Function (graph) tracer for user-space"
 TERMUX_PKG_LICENSE="GPL-2.0"
 TERMUX_PKG_VERSION=0.9.3
-TERMUX_PKG_REVISION=5
+TERMUX_PKG_REVISION=6
 TERMUX_PKG_SRCURL=https://github.com/namhyung/uftrace/archive/v${TERMUX_PKG_VERSION}.tar.gz
 TERMUX_PKG_SHA256=d801d72e3cdd83c510aeecc5160482d879498cf08fffd21e64f84151001e18ea
 TERMUX_PKG_DEPENDS="capstone, libandroid-glob, libandroid-spawn, libelf, ncurses, python2"