[coreboot - Bug #528] Building `emulation/qemu-i440fx` with `CONFIG_CBFS_VERIFICATION=y` fails

Issue #528 has been updated by Nicholas Chin.


It looks like this affects more than just QEMU. The commit message in CB:74243 does alludes to this; anything that uses `MICROCODE_UPDATE_PRE_RAM` will be affected. This is selected by default for systems that don't select `CPU_INTEL_FIRMWARE_INTERFACE_TABLE`, which seems to be everything pre-Haswell. Those boards do still get a fair amount of activity (especially Sandy Bridge/Ivy Bridge).

----------------------------------------
Bug #528: Building `emulation/qemu-i440fx` with `CONFIG_CBFS_VERIFICATION=y` fails
https://ticket.coreboot.org/issues/528#change-2202

* Author: Paul Menzel
* Status: New
* Priority: Normal
* Target version: none
* Start date: 2024-03-01
----------------------------------------
Building a coreboot image for `emulation/qemu-i440fx` with `CONFIG_CBFS_VERIFICATION=y` fails.

```
$ git log --oneline --no-decorate -1
ff2d863515 drivers/intel/gma: Allow SPARK function with side effects
$ make savedefconfig
$ more defconfig
CONFIG_ANY_TOOLCHAIN=y
# CONFIG_SEPARATE_ROMSTAGE is not set
CONFIG_TIMESTAMPS_ON_CONSOLE=y
# CONFIG_USE_BLOBS is not set
CONFIG_NO_POST=y
CONFIG_USE_EXP_X86_64_SUPPORT=y
# CONFIG_PCI_ALLOW_BUS_MASTER is not set
CONFIG_CBFS_VERIFICATION=y
CONFIG_CONSOLE_SERIAL_921600=y
# CONFIG_CONSOLE_QEMU_DEBUGCON is not set
CONFIG_PAYLOAD_FILO=y
CONFIG_FILO_HEAD=y
CONFIG_FILO_USE_AUTOBOOT=y
CONFIG_FILO_AUTOBOOT_FILE="hda1:/vmlinuz initrd=hda1:/initrd.img root=/dev/sda1 ro quiet"
$ make -j4
[…]
    CC         ramstage/arch/x86/boot.o
    CC         ramstage/arch/x86/breakpoint.o
    LINK       cbfs/fallback/postcar.debug
    LINK       cbfs/fallback/bootblock.debug
x86_64-linux-gnu-ld.bfd: warning: build/postcar/mainboard/emulation/qemu-i440fx/exit_car.o: missing .note.GNU-stack section implies executable stack
x86_64-linux-gnu-ld.bfd: NOTE: This behaviour is deprecated and will be removed in a future version of the linker
x86_64-linux-gnu-ld.bfd: warning: build/cbfs/fallback/postcar.debug has a LOAD segment with RWX permissions
    HOSTCC     cbfstool/ifittool (link)
    HOSTCC     cbfstool/ifwitool (link)
    HOSTCC     cbfstool/cse_fpt (link)
x86_64-linux-gnu-ld.bfd: warning: build/bootblock/cpu/x86/reset16.o: missing .note.GNU-stack section implies executable stack
x86_64-linux-gnu-ld.bfd: NOTE: This behaviour is deprecated and will be removed in a future version of the linker
x86_64-linux-gnu-ld.bfd: warning: build/cbfs/fallback/bootblock.debug has a LOAD segment with RWX permissions
x86_64-linux-gnu-ld.bfd: build/bootblock/cpu/qemu-x86/cache_as_ram_bootblock.o: in function `cache_as_ram':
/dev/shm/coreboot/src/cpu/qemu-x86/cache_as_ram_bootblock.S:46:(.init+0x1f): undefined reference to `walkcbfs_asm'
/dev/shm/coreboot/src/cpu/qemu-x86/cache_as_ram_bootblock.S:46:(.init+0x1f): relocation truncated to fit: R_X86_64_PC32 against undefined symbol `walkcbfs_asm'
make: *** [src/arch/x86/Makefile.mk:101: build/cbfs/fallback/bootblock.debug] Fehler 1
make: *** Es wird auf noch nicht beendete Prozesse gewartet....
```



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