Gadiyar, Anand wrote:

Hi all,

I tried to build linux-next as of 20100201 with
omap2plus_defconfig. In addition
I turned on CONFIG_DEBUG_LL and hit the following error.

  AS      arch/arm/kernel/debug.o
arch/arm/kernel/debug.S: Assembler messages:
arch/arm/kernel/debug.S:174: Error: garbage following instruction --
`ldreq r1,=
__virt_to_phys(omap_uart_phys)'
arch/arm/kernel/debug.S:174: Error: garbage following instruction --
`ldrne r1,=
__phys_to_virt((0x80000000+0x3ffc))'
arch/arm/kernel/debug.S:174: Error: garbage following instruction --
`ldreq r2,=
__virt_to_phys(omap_uart_phys)'
arch/arm/kernel/debug.S:174: Error: garbage following instruction --
`ldreq r2,=
__virt_to_phys(omap_uart_phys)'
arch/arm/kernel/debug.S:178: Error: garbage following instruction --
`ldreq r2,=
__virt_to_phys(omap_uart_lsr)'
arch/arm/kernel/debug.S:190: Error: garbage following instruction --
`ldreq r1,=
__virt_to_phys(omap_uart_phys)'
arch/arm/kernel/debug.S:190: Error: garbage following instruction --
`ldrne r1,=
__phys_to_virt((0x80000000+0x3ffc))'
arch/arm/kernel/debug.S:190: Error: garbage following instruction --
`ldreq r2,=
__virt_to_phys(omap_uart_phys)'
arch/arm/kernel/debug.S:190: Error: garbage following instruction --
`ldreq r2,=
__virt_to_phys(omap_uart_phys)'
make[1]: *** [arch/arm/kernel/debug.o] Error 1
make: *** [arch/arm/kernel] Error 2

Will try and bisect this down later. Just reporting for now.

Hi Russell,

This appears to be introduced after this commit from you:

8397c0703b5aa99fdb7c4e5177c4e2fc3b97c835 is the first bad commit
commit 8397c0703b5aa99fdb7c4e5177c4e2fc3b97c835
Author: Russell King [off-list ref]
Date:   Tue Jan 4 19:09:43 2011 +0000

    ARM: P2V: introduce phys_to_virt/virt_to_phys runtime patching

    This idea came from Nicolas, Eric Miao produced an initial version,
    which was then rewritten into this.

The build failure seems to be omap-specific; I don't see this when
I build a mx51_defconfig for instance, but I do get a similar error
when building for omap1_defconfig.

I'll try and dig deeper.

Thanks in advance for any pointers.

- Anand