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[metal] Add a uprintf() routine, for non-emergency boot logging (#905)

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* [metal] Add a uprintf() routine, for non-emergency boot logging
* [metal] _Really_ push forward timing of VGA TTY initialization
* [metal] Do something useful with uprintf()
* [metal] Locate some ACPI tables, for later hardware detection

Specifically the code now tries to find the ACPI RSDP,
RSDT/XSDT, FADT, & MADT tables, whether in legacy BIOS
bootup mode or in a UEFI bootup.  These are useful for
figuring out how to (re)enable asynchronous interrupts
in legacy 8259 PIC mode.
This commit is contained in:
tkchia 2023-10-26 05:32:20 +08:00 • committed by GitHub
parent 062b2d776e
commit ed17d3008b
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25 changed files with 999 additions and 36 deletions
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11
Makefile
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@ -170,11 +170,13 @@ include third_party/puff/puff.mk # │
include libc/elf/elf.mk # │
include ape/ape.mk # │
include libc/fmt/fmt.mk # │
include libc/vga/vga.mk #─┘
include libc/vga/vga.mk # │
include libc/irq/irq.mk #─┘
include libc/calls/calls.mk #─┐
include third_party/nsync/nsync.mk # │
include libc/runtime/runtime.mk # ├──SYSTEMS RUNTIME
include third_party/double-conversion/dc.mk # │ You can issue system calls
include libc/irq/irq.mk # ├──SYSTEMS RUNTIME
include third_party/nsync/nsync.mk # │ You can issue system calls
include libc/runtime/runtime.mk # │
include third_party/double-conversion/dc.mk # │
include libc/crt/crt.mk # │
include third_party/dlmalloc/dlmalloc.mk #─┘
include libc/mem/mem.mk #─┐
@ -374,6 +376,7 @@ COSMOPOLITAN_OBJECTS = \
LIBC_RUNTIME \
THIRD_PARTY_NSYNC \
LIBC_ELF \
LIBC_IRQ \
LIBC_CALLS \
LIBC_SYSV_CALLS \
LIBC_VGA \