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| author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2020-11-21 17:59:41 +0200 |
|---|---|---|
| committer | Hung-Te Lin <hungte@chromium.org> | 2020-12-16 06:31:03 +0000 |
| commit | dc873cc0c6402f289f34090f0fdb34588a04a9c0 (patch) | |
| tree | bc60ff1b392d8e0a77800048e9a2177e46f3e08d /src/arch | |
| parent | 5283c337bf6627c7893f4e8203da4b2921951293 (diff) | |
arch/x86: Clean up bootblock assembly
We have identical gdtptr16 and gdtptr. The reference in
gdtptr_offset calculation is not accounted for when
considering --gc-sections, so to support linking
gdt_init.S separately add dummy use of gdtptr symbol.
Realmode execution already accessed gdt that was located
outside [_start16bit,_estart16bit] region. Remove latter
symbol as the former was not really a start of region,
but entry point symbol.
With the romcc bootblock solution, entry32.inc may have
been linked into romstage before, but the !ENV_BOOTBLOCK
case seems obsolete now.
Change-Id: I0a3f6aeb217ca4e38b936b8c9ec8b0b69732cbb9
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47964
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Diffstat (limited to 'src/arch')
| -rw-r--r-- | src/arch/x86/bootblock.ld | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/arch/x86/bootblock.ld b/src/arch/x86/bootblock.ld index 12f932c2dc..849addd2e2 100644 --- a/src/arch/x86/bootblock.ld +++ b/src/arch/x86/bootblock.ld @@ -1,6 +1,6 @@ /* SPDX-License-Identifier: GPL-2.0-only */ -gdtptr16_offset = gdtptr16 & 0xffff; +gdtptr_offset = gdtptr & 0xffff; nullidt_offset = nullidt & 0xffff; /* Symbol _start16bit must be aligned to 4kB to start AP CPUs with |