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adds a utility to dump the gdt, adds serial printing for printf in testing

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This commit is contained in:
Nathan Singer
2025-05-30 13:49:37 -04:00
parent 1a60e91745
commit 47056f7d9a
4 changed files with 25 additions and 9 deletions
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15
kernel/arch/gdt/gdt_entry.c
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@ -1,9 +1,14 @@
#include <kernel/x86/gdt.h>
#include <stdint.h>
#include <stdio.h>
#ifdef __TESTING__
#include <kernel/_kernel.h>
#endif
uint64_t gdt[GDT_SIZE];
uint64_t create_descriptor(uint32_t base, uint32_t limit, uint16_t flag)
{
uint64_t descriptor;
@ -21,7 +26,7 @@ uint64_t create_descriptor(uint32_t base, uint32_t limit, uint16_t flag)
return descriptor;
}
void gdt_init(uint64_t* gdt)
void gdt_init(void)
{
#ifdef __TESTING__
kinfo("Initializing the GDT");
@ -36,5 +41,13 @@ void gdt_init(uint64_t* gdt)
reloadSegments();
#ifdef __TESTING__
kinfo("Initialized the GDT");
dump_gdt();
#endif
}
void dump_gdt(void)
{
for (int i = 0; i < GDT_SIZE; i++) {
printf("GDT_ENTRY %d: %1 | %2\n", i, gdt[i], gdt[i]);
}
}