Messages in this thread | | | Date | Thu, 15 Nov 2012 14:37:18 +0000 | From | Lee Jones <> | Subject | Re: [PATCH 1/2] Boottime: A tool for automatic measurement of kernel/bootloader boot time |
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On Thu, 15 Nov 2012, Andrew Murray wrote:
> On 15 November 2012 10:04, Lee Jones <lee.jones@linaro.org> wrote: > > The overhead is very low and the results will be found under > > sysfs/bootime, as well as detailed results in debugfs under > > boottime/. The bootgraph* files are compatible with > > scripts/bootgraph.pl. The reason for this patch is to provide > > data (sysfs/boottime) suitable for automatic test-cases as > > well as help for developers to reduce the boot time (debugfs). > > > > Based heavily on the original driver by Jonas Aaberg. > > > > > + > > +static LIST_HEAD(boottime_list); > > +static DEFINE_SPINLOCK(boottime_list_lock); > > +static struct boottime_timer boottime_timer; > > +static int num_const_boottime_list; > > +static struct boottime_list const_boottime_list[NUM_STATIC_BOOTTIME_ENTRIES]; > > +static unsigned long time_kernel_done; > > +static unsigned long time_bootloader_done; > > +static bool system_up; > > +static bool boottime_done; > > + > > +int __attribute__((weak)) boottime_arch_startup(void) > > +{ > > + return 0; > > +} > > + > > +int __attribute__((weak)) boottime_bootloader_idle(void) > > +{ > > + return 0; > > +} > > You may wish to use the __weak macro (include/linux/compiler*) instead > of directly using GCC attributes here.
Can do, thanks Andy.
-- Lee Jones Linaro ST-Ericsson Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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