Skip to contentSkip to conversation

debugging head.S

DISCUSSION Darryl 1 participant 1 message Jan 17, 2014

lore
Share & tools
lore

Darryl

author
#0 lore raw

I am trying to build 3.12.6 for an OMAP3-based board (debug console on UART 3)

Enabling DEBUG in

arch/arm/boot/compressed/head.S

and with

CONFIG_DEBUG_LL_INCLUDE="debug/omap2plus.S"

compiling (well, actually, assembling) gives the following (slightly reformatted):

arch/arm/boot/compressed/head.S: Assembler messages:
arch/arm/boot/compressed/head.S:1237: Error: ARM register expected
-- `sub ,r3,r1'
arch/arm/boot/compressed/head.S:1237: Error: ARM register expected
-- `ldr r3,[,#0]'
arch/arm/boot/compressed/head.S:1237: Error: ARM register expected
-- `ldr r1,[,#4]'
arch/arm/include/debug/omap2plus.S:138: Error: ARM register
expected -- `str r3,[,#0]'
arch/arm/include/debug/omap2plus.S:138: Error: ARM register
expected -- `str r3,[,#4]'
arch/arm/include/debug/omap2plus.S:138: Error: ARM register
expected -- `str r3,[,#8]'
arch/arm/include/debug/omap2plus.S:138: Error: ARM register
expected -- `str r3,[,#0]'
arch/arm/include/debug/omap2plus.S:138: Error: ARM register
expected -- `str r3,[,#4]'
arch/arm/include/debug/omap2plus.S:138: Error: ARM register
expected -- `str r3,[,#8]'
arch/arm/include/debug/omap2plus.S:138: Error: ARM register
expected -- `ldr ,[,#8]'
arch/arm/include/debug/omap2plus.S:138: Error: shift expression
expected -- `add r3,r3,'
arch/arm/include/debug/omap2plus.S:138: Error: shift expression
expected -- `add r1,r1,'
arch/arm/boot/compressed/head.S:1255: Error: ARM register expected
-- `sub ,r3,r1'
arch/arm/boot/compressed/head.S:1255: Error: ARM register expected
-- `ldr r3,[,#0]'
arch/arm/boot/compressed/head.S:1255: Error: ARM register expected
-- `ldr r1,[,#4]'
arch/arm/include/debug/omap2plus.S:138: Error: ARM register
expected -- `str r3,[,#0]'
arch/arm/include/debug/omap2plus.S:138: Error: ARM register
expected -- `str r3,[,#4]'
arch/arm/include/debug/omap2plus.S:138: Error: ARM register
expected -- `str r3,[,#8]'
arch/arm/include/debug/omap2plus.S:138: Error: ARM register
expected -- `str r3,[,#0]'
arch/arm/include/debug/omap2plus.S:138: Error: ARM register
expected -- `str r3,[,#4]'
arch/arm/include/debug/omap2plus.S:138: Error: ARM register
expected -- `str r3,[,#8]'
arch/arm/include/debug/omap2plus.S:138: Error: ARM register
expected -- `ldr ,[,#8]'
arch/arm/include/debug/omap2plus.S:138: Error: shift expression
expected -- `add r3,r3,'
arch/arm/include/debug/omap2plus.S:138: Error: shift expression
expected -- `add r1,r1,'

It looks like the 'addruart' macro in in omap2plus.S is shorted a parameter from the macro 'loadsp' macro in head.S, called in 'puts' and 'putc'.

Am I misusing this in some way? Any suggestions?

Darryl