From e3eb5a92ae3991cdfbb5a5cf553eac476bc5822f Mon Sep 17 00:00:00 2001
From: Christian Cunningham <cc@localhost>
Date: Fri, 4 Feb 2022 23:55:05 -0700
Subject: Removed old mem

---
 src/cpu/irq.c      |   2 -
 src/globals.c      |   3 -
 src/lib/ll.c       |  57 ---------
 src/lib/mem.c      | 340 -----------------------------------------------------
 src/lib/q.c        |  54 ---------
 src/sys/core.c     |   2 -
 src/sys/schedule.c |   5 +-
 src/util/status.c  |   4 -
 8 files changed, 2 insertions(+), 465 deletions(-)
 delete mode 100644 src/lib/ll.c
 delete mode 100644 src/lib/mem.c
 delete mode 100644 src/lib/q.c

(limited to 'src')

diff --git a/src/cpu/irq.c b/src/cpu/irq.c
index 6be4bc7..9685b0a 100644
--- a/src/cpu/irq.c
+++ b/src/cpu/irq.c
@@ -101,7 +101,5 @@ void handle_data(unsigned char data)
 		release_mutex(&exe_cnt_m, SYS_PID);
 	} else if (data == 0x61) {
 		add_thread(uart_scheduler, 0, 2);
-	} else if (data == 0x62) {
-		add_thread(heap_info, 0, 2);
 	}
 }
diff --git a/src/globals.c b/src/globals.c
index 5d3369d..8334a60 100644
--- a/src/globals.c
+++ b/src/globals.c
@@ -1,5 +1,4 @@
 #define GLOBALS_C
-//#include <lib/mem.h>
 #include <lib/kmem.h>
 #include <util/mutex.h>
 #include <graphics/drawer.h>
@@ -25,6 +24,4 @@ __attribute__((section(".bss"))) unsigned int gwidth;
 __attribute__((section(".bss"))) unsigned int gheight;
 __attribute__((section(".bss"))) unsigned int gpitch;
 __attribute__((section(".bss"))) unsigned int gisrgb;
-__attribute__((section(".bss.mmheap"))) unsigned char rpi_heap[MAX_MM];
-__attribute__((section(".bss.mmheap.base"))) void* rpi_heap_top;
 __attribute__((section(".bss"))) unsigned char stacks_table[MAX_THREADS];
diff --git a/src/lib/ll.c b/src/lib/ll.c
deleted file mode 100644
index 4918194..0000000
--- a/src/lib/ll.c
+++ /dev/null
@@ -1,57 +0,0 @@
-#include <lib/ll.h>
-#include <lib/mem.h>
-
-struct LL* new_ll(void* val)
-{
-	struct LL* ll = (struct LL*)malloc(sizeof(struct LL));
-	ll->prev = ll;
-	ll->next = ll;
-	ll->data = val;
-	return ll;
-}
-
-void push_ll(struct LL* l, void* val)
-{
-	struct LL* ll = (struct LL*)malloc(sizeof(struct LL));
-	l->prev->next = ll;
-	ll->prev = l->prev;
-	ll->next = l;
-	l->prev = ll;
-	ll->data = val;
-}
-
-void pop_ll(struct LL* l)
-{
-	if ((l->prev == l->next) && (l->prev == l))
-		l->data = 0;
-	else {
-		l->prev->next = l->next;
-		l->next->prev = l->prev;
-		free(l);
-	}
-}
-
-void remove_ll(struct LL* l, unsigned long idx)
-{
-	struct LL* t = l;
-	for(unsigned long i = 0; i < idx; i++) {
-		t = t->next;
-	}
-	t->prev->next = t->next;
-	t->next->prev = t->prev;
-	free(t);
-}
-
-unsigned long length_ll(struct LL* l)
-{
-	struct LL* t = l;
-	unsigned long len = 0;
-	while (1) {
-		if (t->next == l) {
-			return len;
-		}
-		len++;
-		t = t->next;
-	}
-	return len;
-}
diff --git a/src/lib/mem.c b/src/lib/mem.c
deleted file mode 100644
index 2f50d3d..0000000
--- a/src/lib/mem.c
+++ /dev/null
@@ -1,340 +0,0 @@
-#include <drivers/uart.h>
-#include <globals.h>
-#include <graphics/lfb.h>
-#include <lib/mem.h>
-#include <sys/schedule.h>
-
-void memcpyrot(unsigned char* src, struct RotBuffer* rb, unsigned int n)
-{
-	if (n > rb->size)
-		return;
-	unsigned char* base = rb->base;
-	unsigned int offset = rb->woffset;
-	for (unsigned int i = 0; i < n; i++) {
-		if (offset >= rb->size)
-			offset = 0;
-		base[offset] = src[i];
-		offset++;
-	}
-	rb->woffset = offset;
-}
-
-void memshow(unsigned char* addr, unsigned int n)
-{
-	unsigned char temp;
-	for(unsigned int i = 0; i < n; i++) {
-		temp = addr[i] >> 4;
-		temp += 0x30;
-		if (temp > 0x39)
-			temp += 7;
-		uart_char(temp);
-		temp = addr[i];
-		temp += 0x30;
-		if (temp > 0x39)
-			temp += 7;
-		uart_char(temp);
-		if (i+1 != n)
-			uart_char(0x20);
-	}
-	uart_char(0x0a);
-}
-
-void memshow32(unsigned long* addr, unsigned int n)
-{
-	for(unsigned int i = 0; i < n; i++) {
-		uart_hex(addr[i]);
-		if (i+1 != n)
-			uart_char(0x20);
-	}
-	uart_char(0x0a);
-}
-
-void memset(unsigned char* dest, unsigned char value, unsigned int n)
-{
-	for(unsigned int i = 0; i < n; i++) {
-		dest[i] = value;
-	}
-}
-
-void memcpy(unsigned char* src, unsigned char* dest, unsigned int n)
-{
-	for(unsigned int i = 0; i < n; i++) {
-		dest[i] = src[i];
-	}
-}
-
-unsigned char memcmp(unsigned char* a, unsigned char* b, unsigned int n)
-{
-	for(unsigned int i = 0; i < n; i++) {
-		if (a[i] != b[i])
-			return 0;
-	}
-	return 1;
-}
-
-void memset32(unsigned long* dest, unsigned long value, unsigned int n)
-{
-	for(unsigned int i = 0; i < n; i++) {
-		dest[i] = value;
-	}
-}
-
-void memcpy32(unsigned long* src, unsigned long* dest, unsigned int n)
-{
-	for(unsigned int i = 0; i < n; i++) {
-		dest[i] = src[i];
-	}
-}
-
-unsigned char memcmp32(unsigned long* a, unsigned long* b, unsigned int n)
-{
-	for(unsigned int i = 0; i < n; i++) {
-		if (a[i] != b[i])
-			return 0;
-	}
-	return 1;
-}
-
-
-void* malloc(unsigned char size)
-{
-	unsigned char* mem = (unsigned char*)rpi_heap;
-	unsigned long i = 0;
-	// TODO: Use Null PID
-	while (((void*)(mem + i) < rpi_heap_top) && !(mem[i + MEM_SIZE_OFFSET] == size && mem[i + MEM_USE_OFFSET]==0)) {
-		i += mem[i] + MEM_META_SIZE;
-	}
-	if (mem + i >= (unsigned char*)(rpi_heap_top + MAX_MM))
-		return NULL;
-	// Update top of heap
-	if (mem[i] == 0)
-		rpi_heap_top = (void*)&mem[i + MEM_META_SIZE + size];
-	mem[i] = size;
-	mem[i + MEM_BASE_SIZE + size] = size;
-	// Use allocator's PID
-	mem[i + MEM_USE_OFFSET] = 1;
-	return (void*)&mem[i + MEM_BASE_SIZE];
-}
-
-void* calloc(unsigned char size)
-{
-	void* addr = malloc(size);
-	if (addr != NULL) {
-		memset(addr, 0, size);
-		return addr;
-	}
-	return NULL;
-}
-void* realloc(void* old, unsigned char size)
-{
-	unsigned char osize = *(unsigned char*)(old - MEM_BASE_SIZE);
-	if (size <= osize)
-		return old;
-	void* new = malloc(size);
-	if (new != NULL) {
-		free(old);
-		return new;
-	}
-	return NULL;
-}
-
-void* malloca(unsigned char size, unsigned char amnt)
-{
-	// Return malloc if alignment size is 0 or 1 - trivial alignment
-	if(amnt == 0 || amnt == 1)
-		return malloc(size);
-	unsigned char* mem = (unsigned char*)rpi_heap;
-	unsigned long i = 0;
-	// TODO: Use Null PID
-	while(mem + i < rpi_heap + MAX_MM) {
-		unsigned long diff = (unsigned long)mem + i + MEM_BASE_SIZE;
-		diff %= amnt;
-		diff = amnt - diff;
-		diff %= amnt;
-		if((mem[i + MEM_SIZE_OFFSET] == size) && mem[i + MEM_USE_OFFSET]==0) {
-			if(diff == 0) {
-				mem[i + MEM_SIZE_OFFSET] = size;
-				mem[i + MEM_BASE_SIZE + size] = size;
-				mem[i + MEM_USE_OFFSET] = 1;
-				return (void*)&mem[i + MEM_BASE_SIZE];
-			}
-		} else if (mem[i] == 0) {
-			if(diff == 0) {
-				mem[i + MEM_SIZE_OFFSET] = size;
-				mem[i + MEM_BASE_SIZE + size] = size;
-				mem[i + MEM_USE_OFFSET] = 1;
-				rpi_heap_top = (void*)&mem[i + MEM_META_SIZE + size];
-				return (void*)&mem[i + MEM_BASE_SIZE];
-			} else {
-				while (diff <= MEM_BASE_SIZE) {
-					diff += amnt;
-				}
-				unsigned long empty_size = diff - MEM_META_SIZE;
-				if(empty_size == 0) {
-					empty_size += amnt;
-					diff += amnt;
-				}
-				mem[i + MEM_SIZE_OFFSET] = empty_size;
-				mem[i + MEM_BASE_SIZE + empty_size] = empty_size;
-				i += diff;
-				mem[i + MEM_SIZE_OFFSET] = size;
-				mem[i + MEM_BASE_SIZE + size] = size;
-				mem[i + MEM_USE_OFFSET] = 1;
-				rpi_heap_top = (void*)&mem[i + MEM_META_SIZE + size];
-				return (void*)&mem[i + MEM_BASE_SIZE];
-			}
-		}
-
-		i += mem[i] + MEM_META_SIZE;
-	}
-	return NULL;
-}
-
-void* calloca(unsigned char size, unsigned char amnt)
-{
-	void* addr = malloca(size, amnt);
-	if (addr != NULL) {
-		memset(addr, 0, size);
-		return addr;
-	}
-	return NULL;
-}
-
-void* realloca(void* old, unsigned char size, unsigned char amnt)
-{
-	unsigned char osize = *(unsigned char*)(old - MEM_BASE_SIZE);
-	if (size <= osize)
-		return old;
-	void* new = malloca(size, amnt);
-	if (new != NULL) {
-		free(old);
-		return new;
-	}
-	return NULL;
-}
-
-void free(void* memloc)
-{
-	// Don't try to free memory outside of heap
-	if(!(((void*)rpi_heap <= memloc) && (memloc < rpi_heap_top)))
-		return;
-	unsigned char* base = memloc - MEM_BASE_SIZE;
-	unsigned char size = base[MEM_SIZE_OFFSET];
-	// TODO: Use Null PID
-	base[MEM_USE_OFFSET] = 0;
-	// Clear out old memory
-	for(unsigned int i = 0; i < size; i++) {
-		base[i + MEM_BASE_SIZE] = 0;
-	}
-	// If it is the last entry, clear it and move the heap top down
-	if (base + size + MEM_META_SIZE == rpi_heap_top) {
-		while(base[MEM_USE_OFFSET] == 0 && base >= rpi_heap) {
-			base[MEM_SIZE_OFFSET] = 0;
-			base[MEM_BASE_SIZE + size] = 0;
-			rpi_heap_top = base;
-			unsigned long psize = *(base - 1);
-			base -= psize + MEM_META_SIZE;
-		}
-	}
-}
-
-void* heap_base(void)
-{
-	return (void*)rpi_heap;
-}
-
-void* heap_top(void)
-{
-	return rpi_heap_top;
-}
-
-void vheap_info(void)
-{
-	unsigned char* base = rpi_heap;
-	unsigned long ioff = STACK_DRAW_WIDTH*STACK_DRAW_SIZE;
-	unsigned long yoff = STACK_DRAW_YOFF;
-	draw_cbox(ioff, yoff, STACK_DRAW_SIZE*STACK_DRAW_WIDTH, STACK_DRAW_SIZE * 8, 0x0);
-	while ((void*)base < rpi_heap_top) {
-		unsigned char size = base[MEM_SIZE_OFFSET];
-		if(base[MEM_USE_OFFSET] == 0) {
-			draw_cbox(ioff, yoff, STACK_DRAW_SIZE, STACK_DRAW_SIZE, 0x00FF00);
-		} else {
-			draw_cbox(ioff, yoff, STACK_DRAW_SIZE, STACK_DRAW_SIZE, 0xFF0000);
-		}
-		ioff += STACK_DRAW_SIZE;
-		if(ioff % STACK_DRAW_WIDTH == 0) {
-			yoff += STACK_DRAW_SIZE;
-			ioff = STACK_DRAW_WIDTH*STACK_DRAW_SIZE;
-		}
-		base += size + MEM_META_SIZE;
-	}
-}
-
-void heap_info(void)
-{
-	unsigned char* base = rpi_heap;
-	while ((void*)base < rpi_heap_top) {
-		unsigned char size = base[MEM_SIZE_OFFSET];
-		if(base[MEM_USE_OFFSET] == 0) {
-			uart_char('F');
-			uart_char(' ');
-		} else {
-		}
-		uart_hex((unsigned long)(base + MEM_BASE_SIZE));
-		uart_string(" Size: ");
-		uart_10(size);
-		uart_string("\n");
-		static char* data = "00 \0";
-		static unsigned char temp = 0;
-		for(unsigned int i = 0; i < size; i++) {
-			temp = (base[MEM_BASE_SIZE + i]>>4)&0xF;
-			if(temp > 9)
-				temp += 7;
-			temp += 0x30;
-			data[0] = temp;
-			temp = (base[MEM_BASE_SIZE + i])&0xF;
-			if(temp > 9)
-				temp += 7;
-			temp += 0x30;
-			data[1] = temp;
-			uart_string(data);
-		}
-		uart_char('\n');
-		base += size + MEM_META_SIZE;
-	}
-	uart_char('\n');
-}
-
-void heap_info_u(void)
-{
-	unsigned char* base = rpi_heap;
-	while ((void*)base < rpi_heap_top) {
-		unsigned char size = base[MEM_SIZE_OFFSET];
-		if(base[MEM_USE_OFFSET] == 0) {
-			base += size + MEM_META_SIZE;
-			continue;
-		}
-		uart_hex((unsigned long)(base + MEM_BASE_SIZE));
-		uart_string(" Size: ");
-		uart_10(size);
-		uart_string("\n");
-		static char* data = "00 \0";
-		static unsigned char temp = 0;
-		for(unsigned int i = 0; i < size; i++) {
-			temp = (base[MEM_BASE_SIZE + i]>>4)&0xF;
-			if(temp > 9)
-				temp += 7;
-			temp += 0x30;
-			data[0] = temp;
-			temp = (base[MEM_BASE_SIZE + i])&0xF;
-			if(temp > 9)
-				temp += 7;
-			temp += 0x30;
-			data[1] = temp;
-			uart_string(data);
-		}
-		uart_char('\n');
-		base += size + MEM_META_SIZE;
-	}
-	uart_char('\n');
-}
diff --git a/src/lib/q.c b/src/lib/q.c
deleted file mode 100644
index 2ade143..0000000
--- a/src/lib/q.c
+++ /dev/null
@@ -1,54 +0,0 @@
-#include <lib/q.h>
-#include <lib/mem.h>
-
-struct Q_base* new_q()
-{
-	struct Q_base* q = (struct Q_base*)malloc(sizeof(struct Q_base));
-	q->next = 0;
-	q->last = 0;
-	return q;
-}
-
-void push_q(struct Q_base* qb, void* val)
-{
-	struct Q* n = (struct Q*)malloc(sizeof(struct Q));
-	n->next = 0;
-	n->data = val;
-	if (qb->last != 0)
-		qb->last->next = n;
-	else {
-		qb->next = n;
-	}
-	qb->last = n;
-}
-
-void pop_q(struct Q_base* qb)
-{
-	if (qb->next == 0)
-		return;
-	if (qb->next == qb->last) {
-		free(qb->next->data);
-		free(qb->next);
-		qb->next = 0;
-		qb->last = 0;
-		return;
-	}
-	struct Q* t = qb->next;
-	qb->next = qb->next->next;
-	free(t->data);
-	free(t);
-}
-
-unsigned long length_q(struct Q_base* qb)
-{
-	unsigned long length = 0;
-	if(qb->next == 0)
-		return length;
-	length++;
-	struct Q* q = qb->next;
-	while (q != qb->last) {
-		length++;
-		q = q->next;
-	}
-	return length;
-}
diff --git a/src/sys/core.c b/src/sys/core.c
index a42b581..65ee526 100644
--- a/src/sys/core.c
+++ b/src/sys/core.c
@@ -5,7 +5,6 @@
 #include <graphics/drawer.h>
 #include <graphics/lfb.h>
 #include <lib/kmem.h>
-#include <lib/mem.h>
 #include <lib/strings.h>
 #include <symbols.h>
 #include <sys/core.h>
@@ -21,7 +20,6 @@ void sysinit(void)
 	// Initialize System Globals
 	exe_cnt_m.addr = &exe_cnt;
 	exe_cnt_m.pid = NULL_PID;
-	rpi_heap_top = &rpi_heap;
 	stimeh = *(unsigned long*)SYS_TIMER_CHI;
 	stimel = *(unsigned long*)SYS_TIMER_CLO;
 	*(unsigned long*) SYS_TIMER_C0 = 60000000 + stimeh; // 60 second trigger
diff --git a/src/sys/schedule.c b/src/sys/schedule.c
index acd6098..7bc86c3 100644
--- a/src/sys/schedule.c
+++ b/src/sys/schedule.c
@@ -110,7 +110,7 @@ void uart_scheduler(void)
 	uart_string("Scheduler Info\n==============\nCurrent\n");
 	uart_hex((unsigned long)scheduler.rthread);
 	uart_char(' ');
-	memshow32((void*)scheduler.rthread, 6);
+	//memshow32((void*)scheduler.rthread, 6);
 	struct ThreadQueues* tq;
 	for(int p = 0; p < PRIORITIES; p++) {
 		uart_string("Priority ");
@@ -131,8 +131,7 @@ void uart_scheduler(void)
 			while (roffset != trb->woffset) {
 				uart_hex((unsigned long)trb->queue[roffset]);
 				uart_char(' ');
-				memshow32((void*)trb->queue[roffset], 6);
-				//memshow32((void*)trb->queue[roffset]->sp, 14);
+				//memshow32((void*)trb->queue[roffset], 6);
 				roffset++;
 				roffset %= TQUEUE_MAX;
 			}
diff --git a/src/util/status.c b/src/util/status.c
index 4959431..9044b1a 100644
--- a/src/util/status.c
+++ b/src/util/status.c
@@ -2,7 +2,6 @@
 #include <globals.h>
 #include <graphics/drawer.h>
 #include <graphics/lfb.h>
-#include <lib/mem.h>
 #include <symbols.h>
 #include <sys/core.h>
 #include <sys/schedule.h>
@@ -180,7 +179,4 @@ void status(void)
 
 	g_Drawer.x = x;
 	g_Drawer.y = y;
-
-	draw_stacks();
-	vheap_info();
 }
-- 
cgit v1.2.1