test: Update so it builds with LLVM

This commit is contained in:
mintsuki 2021-07-02 19:05:30 +02:00
parent 652a6d2575
commit 04c4c42779
3 changed files with 60 additions and 7 deletions

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@ -3,17 +3,18 @@ CFLAGS = -O2
LD = cc
QEMU = qemu-system-x86_64
QEMUFLAGS = -m 1G -enable-kvm -cpu host
LDINTERNALFLAGS := -Tlinker.ld -nostdlib -pie -static-pie -fno-pic -fpie -z max-page-size=0x1000
INTERNALCFLAGS := -I../stivale -I. -ffreestanding -fno-stack-protector \
-fno-pic -fpie -fomit-frame-pointer -mno-red-zone -mgeneral-regs-only -masm=intel
LDINTERNALFLAGS := -Tlinker.ld -nostdlib -fno-pic -fpie -z max-page-size=0x1000 \
-Wl,-static,-pie,--no-dynamic-linker,-ztext -static-pie
INTERNALCFLAGS := -I../stivale -I. -ffreestanding -fno-stack-protector \
-fno-pic -fpie -mno-red-zone -mno-80387 -mno-mmx -mno-3dnow -mno-sse -mno-sse2
all: test.elf
test.elf: stivale.o stivale2.o e9print.o
$(LD) $(LDINTERNALFLAGS) stivale.o stivale2.o e9print.o -o test.elf
test.elf: stivale.o stivale2.o e9print.o memory.o
$(LD) $(LDINTERNALFLAGS) $^ -o test.elf
%.o: %.c
$(CC) $(CFLAGS) $(INTERNALCFLAGS) -c $< -o $@
clean:
rm -rf test.elf stivale.o stivale2.o e9print.o
rm -rf test.elf stivale.o stivale2.o e9print.o memory.o

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@ -8,7 +8,7 @@ static const char CONVERSION_TABLE[] = "0123456789abcdef";
void e9_putc(char c) {
if (stivale2_print != NULL)
stivale2_print(&c, 1);
asm volatile ("out dx, al" :: "a" (c), "d" (0xE9) : "memory");
asm volatile ("outb %0, %1" :: "a" (c), "Nd" (0xe9) : "memory");
}
void e9_print(const char *msg) {

52
test/memory.c Normal file
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@ -0,0 +1,52 @@
#include <stddef.h>
#include <stdint.h>
void *memcpy(void *dest, const void *src, size_t n) {
uint8_t *pdest = dest;
const uint8_t *psrc = src;
for (size_t i = 0; i < n; i++) {
pdest[i] = psrc[i];
}
return dest;
}
void *memset(void *s, int c, size_t n) {
uint8_t *p = s;
for (size_t i = 0; i < n; i++) {
p[i] = (uint8_t)c;
}
return s;
}
void *memmove(void *dest, const void *src, size_t n) {
uint8_t *pdest = dest;
const uint8_t *psrc = src;
if (src > dest) {
for (size_t i = 0; i < n; i++) {
pdest[i] = psrc[i];
}
} else if (src < dest) {
for (size_t i = n; i > 0; i--) {
pdest[i-1] = psrc[i-1];
}
}
return dest;
}
int memcmp(const void *s1, const void *s2, size_t n) {
const uint8_t *p1 = s1;
const uint8_t *p2 = s2;
for (size_t i = 0; i < n; i++) {
if (p1[i] != p2[i])
return p1[i] < p2[i] ? -1 : 1;
}
return 0;
}