Messages in this thread | | | From | Linus Walleij <> | Date | Mon, 2 Jan 2017 21:15:29 +0100 | Subject | Re: [PATCH 15/20] ARM/hw_breakpoint: Convert to hotplug state machine |
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On Mon, Jan 2, 2017 at 4:00 PM, Russell King - ARM Linux <linux@armlinux.org.uk> wrote: > On Mon, Jan 02, 2017 at 03:34:32PM +0100, Linus Walleij wrote: >> in the first line of arch_hw_breakpoint_init() in >> arch/arm/kernel/hw_breakpoint.c >> >> I suspect that is not an accepable solution ... >> >> It hangs at PC is at write_wb_reg+0x20c/0x330 >> Which is c03101dc, and looks like this in objdump -d: >> >> c031020c: ee001eba mcr 14, 0, r1, cr0, cr10, {5} >> c0310210: eaffffb3 b c03100e4 <write_wb_reg+0x114> > > ... and this is several instructions after the address you mention above. > Presumably c03101dc is accessing a higher numbered register?
Ah sorry. It looks like this:
c03101dc: ee001ed0 mcr 14, 0, r1, cr0, cr0, {6} c03101e0: eaffffbf b c03100e4 <write_wb_reg+0x114> c03101e4: ee001ebf mcr 14, 0, r1, cr0, cr15, {5} c03101e8: eaffffbd b c03100e4 <write_wb_reg+0x114> c03101ec: ee001ebe mcr 14, 0, r1, cr0, cr14, {5} c03101f0: eaffffbb b c03100e4 <write_wb_reg+0x114> c03101f4: ee001ebd mcr 14, 0, r1, cr0, cr13, {5} c03101f8: eaffffb9 b c03100e4 <write_wb_reg+0x114>
Yours, Linus Walleij
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