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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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36
libc/intrin/kprintf.h
View file

@ -9,25 +9,49 @@
#define kvsnprintf __kvsnprintf
#define kloghandle __kloghandle
#define kisdangerous __kisdangerous
#define uprintf __uprintf
#define uvprintf __uvprintf
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
void kprintf(const char *, ...);
size_t ksnprintf(char *, size_t, const char *, ...);
void kvprintf(const char *, va_list);
size_t kvsnprintf(char *, size_t, const char *, va_list);
bool kisdangerous(const void *);
void kprintf(const char *, ...);
size_t ksnprintf(char *, size_t, const char *, ...);
void kvprintf(const char *, va_list);
size_t kvsnprintf(char *, size_t, const char *, va_list);
bool kisdangerous(const void *);
void klog(const char *, size_t);
void _klog_serial(const char *, size_t);
long kloghandle(void);
void uprintf(const char *, ...);
void uvprintf(const char *, va_list);
#ifndef TINY
#define KINFOF(FMT, ...) \
do { \
uprintf("\r\e[35m%s:%d: " FMT "\e[0m\n", \
__FILE__, __LINE__, ## __VA_ARGS__); \
} while (0)
#define KWARNF(FMT, ...) \
do { \
uprintf("\r\e[94;49mwarn: %s:%d: " FMT "\e[0m\n", \
__FILE__, __LINE__, ## __VA_ARGS__); \
} while (0)
#else
#define KINFOF(FMT, ...) ((void)0)
#define KWARNF(FMT, ...) ((void)0)
#endif
#define KDIEF(FMT, ...) \
do { \
kprintf("\r\e[30;101mfatal: %s:%d: " FMT "\e[0m\n", \
__FILE__, __LINE__, ## __VA_ARGS__); \
for (;;) asm volatile("cli\n\thlt"); \
} while (0)
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* _COSMO_SOURCE */