From: Marco Felsch <m.felsch@pengutronix.de>
To: Ahmad Fatoum <a.fatoum@pengutronix.de>
Cc: barebox@lists.infradead.org, uol@pengutronix.de
Subject: Re: [PATCH master v1 2/6] firmware: turn missing firmware into linker error
Date: Thu, 29 Jun 2023 11:07:50 +0200 [thread overview]
Message-ID: <20230629090750.q2r5ler7ponpwchw@pengutronix.de> (raw)
In-Reply-To: <20230626153335.3592017-3-a.fatoum@pengutronix.de>
On 23-06-26, Ahmad Fatoum wrote:
> Appending to firmware-y results in an assembly file being generated that
> defines a section embedding the firmware in question verbatim via .incbin.
> To update the assembly file as required, the target has a dependency on
> the firmware. When the firmware is missing, the build will abort there.
>
> In preparation for deferring missing PBL firmware errors till the very
> end, let's remove the firmware dependency if the missing firmware file
> is built into PBL and replace the .incbin with a reference to an ultimately
> undefined variable.
>
> Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Reviewed-by: Marco Felsch <m.felsch@pengutronix.de>
> ---
> firmware/Makefile | 7 ++++++-
> 1 file changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/firmware/Makefile b/firmware/Makefile
> index 8050d0418d33..c66d19c677e8 100644
> --- a/firmware/Makefile
> +++ b/firmware/Makefile
> @@ -41,6 +41,7 @@ obj-pbl-y := $(addsuffix .gen.o, $(firmware-y))
>
> FWNAME = $(patsubst $(obj)/%.extgen.S,%,$(patsubst $(obj)/%.gen.S,%,$@))
> FWSTR = $(subst /,_,$(subst .,_,$(subst -,_,$(FWNAME))))
> +FWNAME_EXISTS = $(if $(wildcard $(fwdir)/$(FWNAME)),1,0)
>
> filechk_fwbin = { \
> echo "/* Generated by $(src)/Makefile */" ;\
> @@ -50,7 +51,11 @@ filechk_fwbin = { \
> echo " .p2align $(ASM_LGPTR)" ;\
> echo ".global _fw_$(FWSTR)_start" ;\
> echo "_fw_$(FWSTR)_start:" ;\
> + echo "\#if $(FWNAME_EXISTS)" ;\
> echo " .incbin \"$(fwdir)/$(FWNAME)\"" ;\
> + echo "\#else" ;\
> + echo "ASM_PTR _fwname_$(FWSTR)" ;\
> + echo "\#endif" ;\
> echo ".global _fw_$(FWSTR)_end" ;\
> echo "_fw_$(FWSTR)_end:" ;\
> }
> @@ -88,7 +93,7 @@ clean-files += *.sha.bin *.sum
> $(patsubst %.gen.o,$(obj)/%.gen.o, $(obj-pbl-y)): $(obj)/%.gen.o: $(fwdir)/%
>
> # The same for pbl:
> -$(patsubst %.gen.o,$(obj)/%.gen.pbl.o, $(obj-pbl-y)): $(obj)/%.gen.pbl.o: $(fwdir)/%
> +$(patsubst %.gen.o,$(obj)/%.gen.pbl.o, $(obj-pbl-y)): $(obj)/%.gen.pbl.o: $(wildcard $(fwdir)/%)
> $(patsubst %.gen.o,$(obj)/%.extgen.pbl.o, $(pbl-y)): $(obj)/%.extgen.pbl.o: $(fwdir)/%
>
> pbl-y := $(addsuffix .extgen.o, $(fw-external-y))
> --
> 2.39.2
>
>
>
next prev parent reply other threads:[~2023-06-29 9:09 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-26 15:33 [PATCH master v1 0/6] firmware: optionally turn missing firmware errors into warnings Ahmad Fatoum
2023-06-26 15:33 ` [PATCH master v1 1/6] firmware: reference pointer alignment defined in <asm-generic/pointer.h> Ahmad Fatoum
2023-06-29 8:57 ` Marco Felsch
2023-06-26 15:33 ` [PATCH master v1 2/6] firmware: turn missing firmware into linker error Ahmad Fatoum
2023-06-29 9:07 ` Marco Felsch [this message]
2023-06-26 15:33 ` [PATCH master v1 3/6] firmware: optionally turn missing firmware errors into warnings Ahmad Fatoum
2023-07-03 6:25 ` Marco Felsch
2023-07-03 8:45 ` Ahmad Fatoum
2023-06-26 15:33 ` [PATCH master v1 4/6] ARM: Rockchip: gracefully handle missing firmware Ahmad Fatoum
2023-06-26 15:33 ` [PATCH master v1 5/6] ARM64: unset CONFIG_MISSING_FIRMWARE_ERROR for Rockchip/i.MX Ahmad Fatoum
2023-07-03 6:33 ` Marco Felsch
2023-07-03 8:46 ` Ahmad Fatoum
2023-06-26 15:33 ` [PATCH master v1 6/6] firmware: don't hardcode firmware paths in srctree for existence check Ahmad Fatoum
2023-07-03 6:34 ` Marco Felsch
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