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feat(boards): both systems on every board image, chosen at boot -- system=v3 or system=v4

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boards/BRINGUP.md A6, FABRIC-3 SXLIII (ruled: one image, switch at boot).
A STARFORTH_V4 kernel carries v3 too; system= in the boot arguments
chooses, else the build's default (V4_DEFAULT: 1 for plain STARFORTH_V4
builds as before, 0 for board images).  make boot_image builds both and
always writes starforth.cfg / cmdline.txt with system=v3 first, and cleans
its ISA's objects first -- that clean was removing build/<arch>/SER5, not
the kernel's objects, until fixed here.

Each ISA: v3 by default (hash unchanged), v4 with system=v4 (538/538).
The SER5 image under OVMF: v3 as built, v4 after a one-word edit on it.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
rajames
2026-10-14 15:11:47 -04:00
co-authored by Claude Opus 5.5
parent e729c64ba3
commit 1a4b163861
32 changed files with 74479 additions and 17 deletions
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Makefile
+8 -1
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@@ -95,8 +95,15 @@ boot_image:
echo " $(call board_field,$(TARGET),BOARD_DESC)"; \
exit 1; \
fi
@# Both systems in one image, v3 unless the boot arguments say system=v4
@# (boards/BRINGUP.md A6, ruled 2026-10-14). A clean build every time: the
@# kernel objects are shared with `make qemu`, and make does not see a
@# change of compile flags -- an image could otherwise carry objects built
@# without v4, or without the bring-up console.
@$(SUBMAKE) -f kernel/Makefile ARCH=$(call board_arch,$(TARGET)) TARGET=kernel clean
@$(SUBMAKE) -f kernel/Makefile \
BOARD=$(BOARD_DIR) ARCH=$(call board_arch,$(TARGET)) TARGET=kernel boot_image
BOARD=$(BOARD_DIR) ARCH=$(call board_arch,$(TARGET)) TARGET=kernel \
STARFORTH_V4=1 V4_DEFAULT=0 boot_image
boot_images:
@for b in $(READY_BOARDS); do \