Merge remote-tracking branch 'origin/main' into gbowne1_impl

This commit is contained in:
Gregory Kenneth Bowne 2024-02-14 16:51:02 -08:00
commit f83a00f4d5
2 changed files with 20 additions and 0 deletions

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@ -1,5 +1,10 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="GitSharedSettings">
<option name="FORCE_PUSH_PROHIBITED_PATTERNS">
<list />
</option>
</component>
<component name="VcsDirectoryMappings">
<mapping directory="" vcs="Git" />
</component>

15
main.c
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@ -1,11 +1,19 @@
#include <stddef.h>
#include <stdio.h>
#include <unistd.h>
<<<<<<< HEAD
#include <stdlib.h>
=======
#include <sys/syscall.h>
>>>>>>> origin/main
#define ALIGN16(s) (((s) + 15) & ~0x0F)
#define BLOCK_SIZE sizeof(struct block)
<<<<<<< HEAD
#define MINIMUM_BLOCK_SIZE (sizeof(struct block) + 16)
=======
#define MINIMUM_BLOCK_SIZE 4
>>>>>>> origin/main
/// The memory block's header.
struct block
@ -28,12 +36,18 @@ struct block *extend_heap(size_t s)
if (s < MINIMUM_BLOCK_SIZE)
s = MINIMUM_BLOCK_SIZE;
<<<<<<< HEAD
struct block *b = (struct block *)sbrk(0); // Get the current break
// Add the size of the block header to the requested size
s += BLOCK_SIZE;
if (sbrk(s) == (void *)-1) // Extend the break by s bytes
=======
struct block* b = (struct block*)syscall(SYS_brk, NULL);
if ((void*)syscall(SYS_brk, (char*)(b + 1) + s) == (void*)-1)
>>>>>>> origin/main
return NULL;
b->size = s;
@ -269,6 +283,7 @@ int main()
printf("Test 1: %i\n", *a);
printf("Test 2: %i\n", *b);
printf("Heap Size: %zu Bytes\n", get_heap_size());
free(a);
free(b);