Plan 9 from Bell Labs’s /usr/web/sources/patch/applied/libmach-arm-symoff/readme

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Correct symbolic display of addresses when high bit is set (eg in omap kernel).
After installing patch, rebuild db, acid and 5i.

Before:
acid: asm(main)
main 0xc0314d74	MOVW.W	R14,#-0x10(R13)
main+0x4 0xc0314d78	MOVW	$#0xc03c1bfc-SB(SB),R6
main+0x8 0xc0314d7c	MOVW	$#0x35014542,R11
main+0xc 0xc0314d80	CMN.S	R11,R6
main+0x10 0xc0314d84	B.EQ	etext+0xaa584
main+0x14 0xc0314d88	MOVW	$#0xc03c0000,R0
main+0x18 0xc0314d8c	MOVW	$#0xc03bf328,R1
main+0x1c 0xc0314d90	MOVW	R1,#0x8(R13)
main+0x20 0xc0314d94	MOVW	$#0xc0488c70,R3
main+0x24 0xc0314d98	SUB	R0,R3,R3
main+0x28 0xc0314d9c	MOVW	R3,#0xc(R13)
main+0x2c 0xc0314da0	BL	etext+0xcce0

After:
acid: asm(main)
main 0xc0314d74	MOVW.W	R14,#-0x10(R13)
main+0x4 0xc0314d78	MOVW	$vfy$19-SB(SB),R6
main+0x8 0xc0314d7c	MOVW	$#0x35014542,R11
main+0xc 0xc0314d80	CMN.S	R11,R6
main+0x10 0xc0314d84	B.EQ	main+0x30
main+0x14 0xc0314d88	MOVW	$msg$1,R0
main+0x18 0xc0314d8c	MOVW	$#0xc03bf328,R1
main+0x1c 0xc0314d90	MOVW	R1,#0x8(R13)
main+0x20 0xc0314d94	MOVW	$xlists,R3
main+0x24 0xc0314d98	SUB	R0,R3,R3
main+0x28 0xc0314d9c	MOVW	R3,#0xc(R13)
main+0x2c 0xc0314da0	BL	memmove

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