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build: v4 is the default build -- every kernel boots v4; acceptance is v4 on three ISAs and the 32-bit build

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Captain Bob, 2026-10-14: "v4 is the default build", "no, qemu to v4
too ... we are effectively trying to retire v3", "the 32 bit build needs
to go into the acceptance test too", "i don't care about v3".

- STARFORTH_V4 defaults on (Kconfig default y) and V4_DEFAULT=1
  everywhere: every kernel carries v4 and v3 and boots v4; system=v3 boots
  v3; STARFORTH_V4=0 builds v3 alone.  Board images write system=v4.
- Acceptance (CLAUDE.md): the three ISAs as built (v4, POST passed,
  V4_SYSTEM dict_hash equal) and make -C v4 test-32.  v3 is not part of
  it.

Acceptance run: amd64, aarch64, riscv64 -- PARITY:V4_POST 538/538,
dict_hash=0xe5a57f3eb72ff94a on all three, no unknown word; test-32: 30
suites, 0 failures.  The SER5 image under OVMF boots v4 as built, v3 after
the one-word edit.  README, BRINGUP, FABRIC-3 XLIII, the register updated.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
rajames
2026-10-14 17:21:13 -04:00
co-authored by Claude Opus 5.5
parent 7bc658bb83
commit 79db0e8d88
17 changed files with 9585 additions and 37 deletions
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Makefile
+3 -3
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@@ -98,15 +98,15 @@ 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
@# Both systems in one image, v4 unless the boot arguments say system=v3
@# (boards/BRINGUP.md A6, ruled 2026-10-14; v4 the default, same day). 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,$(TARGET)) TARGET=kernel \
STARFORTH_V4=1 V4_DEFAULT=0 boot_image
STARFORTH_V4=1 V4_DEFAULT=1 boot_image
@# Its SBOM, and the source tree's, are part of the build (2026-10-14).
@$(SUBMAKE) sbom-board TARGET=$(TARGET)
@$(SUBMAKE) sbom