Re: [PATCH 1/3] soc: qcom: pmic_pdcharger_ulog: Search current directory for headers

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On Tue, Dec 12, 2023 at 08:21:41PM +0100, Neil Armstrong wrote:
> On 12/12/2023 17:52, Neil Armstrong wrote:
> > On 12/12/2023 17:15, Andrew Halaney wrote:
> > > On Tue, Dec 12, 2023 at 09:54:48AM -0600, Andrew Halaney wrote:
> > > > On Tue, Dec 12, 2023 at 04:23:20PM +0100, Neil Armstrong wrote:
> > > > > Hi Andrew,
> > > > > 
> > > > > On 06/12/2023 00:05, Andrew Halaney wrote:
> > > > > > As specified in samples/trace_events/Makefile:
> > > > > > 
> > > > > >       If you include a trace header outside of include/trace/events
> > > > > >       then the file that does the #define CREATE_TRACE_POINTS must
> > > > > >       have that tracer file in its main search path. This is because
> > > > > >       define_trace.h will include it, and must be able to find it from
> > > > > >       the include/trace directory.
> > > > > > 
> > > > > > Without this the following compilation error is seen:
> > > > > > 
> > > > > >         CC      drivers/soc/qcom/pmic_pdcharger_ulog.o
> > > > > >       In file included from drivers/soc/qcom/pmic_pdcharger_ulog.h:36,
> > > > > >                        from drivers/soc/qcom/pmic_pdcharger_ulog.c:15:
> > > > > >       ./include/trace/define_trace.h:95:42: fatal error: ./pmic_pdcharger_ulog.h: No such file or directory
> > > > > >          95 | #include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
> > > > > >             |                                          ^
> > > > > >       compilation terminated.
> > > > > 
> > > > > I never experienced such error, and no CI even reported it, can you explain how you got this ?
> > > > 
> > > > To be honest, I am unsure why I'm experiencing this (and until I saw
> > > > another thread about it today I thought maybe I had screwed something
> > > > up!).
> > > > 
> > > > I just took it as an opportunity to try and read up on the tracing
> > > > infrastructure and sent this series. Definitely no expertise with the
> > > > in's and out's of tracing :)
> > > > 
> > > > I'm able to reproduce this on next-20231211:
> > > > 
> > > >      ahalaney@fedora ~/git/linux-next (git)-[b4/b4-stmmac-handle-mdio-enodev] % ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- make mrproper
> > > >      <snip>
> > > >      ahalaney@fedora ~/git/linux-next (git)-[b4/b4-stmmac-handle-mdio-enodev] % ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- make defconfig
> > > >      <snip>
> > > >      *** Default configuration is based on 'defconfig'
> > > >      #
> > > >      # configuration written to .config
> > > >      #
> > > 
> > > Realized I missed a step, actually enabling tracing and the driver at
> > > play here... but the result is the same.
> > > 
> > > Attached is a config where I hit this.
> > > 
> > > >      130 ahalaney@fedora ~/git/linux-next (git)-[b4/b4-stmmac-handle-mdio-enodev] % ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- make drivers/soc/qcom/pmic_pdcharger_ulog.o
> > > >        HOSTCC  scripts/dtc/dtc.o
> > > >      <snip>
> > > >        CC      drivers/soc/qcom/pmic_pdcharger_ulog.o
> > > >      In file included from drivers/soc/qcom/pmic_pdcharger_ulog.h:36,
> > > >              from drivers/soc/qcom/pmic_pdcharger_ulog.c:15:
> > > >      ./include/trace/define_trace.h:95:42: fatal error: ./pmic_pdcharger_ulog.h: No such file or directory
> > > >         95 | #include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
> > > >      <snip>
> > > >      2 ahalaney@fedora ~/git/linux-next (git)-[b4/b4-stmmac-handle-mdio-enodev] %
> > > > 
> > > > I even tried it in a fedora container with the above build commands and
> > > > the following podman invocation (plus some package installs) and saw the error:
> > > > 
> > > >      podman run -it -v ~/git/linux-next:/linux-next:z quay.io/fedora/fedora:latest /bin/bash
> > > > 
> > > > So I'm unsure if it's a fedora package version thing (which I'm running on my host)
> > > > or something else... Once I saw it was sort of spelled out in the
> > > > examples I referenced here I just decided it was something needed
> > > > fixing, regardless of why I'm hitting it while others seem ok.
> > 
> > Interesting, I don't get the problem with the same tag, same .config but with gcc-arm-10.3-2021.07-x86_64-aarch64-none-linux-gnu
> > 
> > I'll try with gcc 13.
> 
> Ok tried with ARM's arm-gnu-toolchain-13.2.rel1-x86_64-aarch64-none-linux-gnu (https://developer.arm.com/downloads/-/arm-gnu-toolchain-downloads),
> and no error, and I even tried with https://mirrors.edge.kernel.org/pub/tools/crosstool/files/bin/x86_64/13.2.0/ and same no error...

Hmm. I'm unsure what's up. I tried with a debian container and a fresh
clone and still saw it :/

If you want, something like (swap docker for podman if that's your
thing): podman run -it debian:latest /bin/bash
should let you reproduce after cloning etc.

> 
> Neil
> 
> > 
> > Neil
> > 
> > > > 
> > > > > 
> > > > > Thanks,
> > > > > Neil
> > > > > 
> > > > > > 
> > > > > > Fixes: 086fdb48bc65 ("soc: qcom: add ADSP PDCharger ULOG driver")
> > > > > > Signed-off-by: Andrew Halaney <ahalaney@xxxxxxxxxx>
> > > > > > ---
> > > > > >    drivers/soc/qcom/Makefile | 1 +
> > > > > >    1 file changed, 1 insertion(+)
> > > > > > 
> > > > > > diff --git a/drivers/soc/qcom/Makefile b/drivers/soc/qcom/Makefile
> > > > > > index 110108e23669..05b3d54e8dc9 100644
> > > > > > --- a/drivers/soc/qcom/Makefile
> > > > > > +++ b/drivers/soc/qcom/Makefile
> > > > > > @@ -10,6 +10,7 @@ obj-$(CONFIG_QCOM_PDR_HELPERS)    += pdr_interface.o
> > > > > >    obj-$(CONFIG_QCOM_PMIC_GLINK)    += pmic_glink.o
> > > > > >    obj-$(CONFIG_QCOM_PMIC_GLINK)    += pmic_glink_altmode.o
> > > > > >    obj-$(CONFIG_QCOM_PMIC_PDCHARGER_ULOG)    += pmic_pdcharger_ulog.o
> > > > > > +CFLAGS_pmic_pdcharger_ulog.o    :=  -I$(src)
> > > > > >    obj-$(CONFIG_QCOM_QMI_HELPERS)    += qmi_helpers.o
> > > > > >    qmi_helpers-y    += qmi_encdec.o qmi_interface.o
> > > > > >    obj-$(CONFIG_QCOM_RAMP_CTRL)    += ramp_controller.o
> > > > > > 
> > > > > 
> > 
> 





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