Commit e793eb75 authored by Cyrill Gorcunov's avatar Cyrill Gorcunov

cleanup: Drop unneeded sources

Signed-off-by: 's avatarCyrill Gorcunov <gorcunov@gmail.com>
parent 3e725434
......@@ -64,7 +64,6 @@ OBJS += cr-dump.o
OBJS += cr-restore.o
OBJS += cr-show.o
OBJS += util.o
OBJS += rbtree.o
OBJS += elf.o
OBJS += seize.o
OBJS += restorer.o
......
/*
* RBtree implementation adopted from the Linux
* kernel sources.
*/
#ifndef _LINUX_RBTREE_H
#define _LINUX_RBTREE_H
#include <stddef.h>
#define RB_RED 0
#define RB_BLACK 1
#define RB_COLOR_MASK 3
struct rb_node {
unsigned long rb_parent_color;
struct rb_node *rb_right;
struct rb_node *rb_left;
} __attribute__((aligned(sizeof(long))));
struct rb_root {
struct rb_node *rb_node;
};
#define rb_parent(r) ((struct rb_node *)((r)->rb_parent_color & ~RB_COLOR_MASK))
#define rb_color(r) ((r)->rb_parent_color & RB_BLACK)
#define rb_is_red(r) (!rb_color(r))
#define rb_is_black(r) rb_color(r)
#define rb_set_red(r) do { (r)->rb_parent_color &= ~RB_BLACK; } while (0)
#define rb_set_black(r) do { (r)->rb_parent_color |= RB_BLACK; } while (0)
static inline void rb_set_parent(struct rb_node *rb, struct rb_node *p)
{
rb->rb_parent_color = (rb->rb_parent_color & RB_COLOR_MASK) |(unsigned long)p;
}
static inline void rb_set_color(struct rb_node *rb, int color)
{
rb->rb_parent_color = (rb->rb_parent_color & ~RB_BLACK) | color;
}
#define RB_ROOT (struct rb_root) { NULL, }
#define rb_entry(ptr, type, member) \
container_of(ptr, type, member)
#define RB_EMPTY_ROOT(root) ((root)->rb_node == NULL)
#define RB_EMPTY_NODE(node) (rb_parent(node) == node)
#define RB_CLEAR_NODE(node) (rb_set_parent(node, node))
static inline void rb_init_node(struct rb_node *rb)
{
rb->rb_parent_color = 0;
rb->rb_right = NULL;
rb->rb_left = NULL;
RB_CLEAR_NODE(rb);
}
void rb_insert_color(struct rb_node *, struct rb_root *);
void rb_erase(struct rb_node *, struct rb_root *);
struct rb_node *rb_next(const struct rb_node *node);
struct rb_node *rb_prev(const struct rb_node *node);
struct rb_node *rb_first(const struct rb_root *node);
struct rb_node *rb_last(const struct rb_root *node);
void rb_replace_node(struct rb_node *victim, struct rb_node *new,
struct rb_root *root);
static inline void rb_link_node(struct rb_node *node, struct rb_node *parent,
struct rb_node **rb_link)
{
node->rb_parent_color = (unsigned long )parent;
node->rb_left = node->rb_right = NULL;
*rb_link = node;
}
#endif /* _LINUX_RBTREE_H */
#include "syscal-codes.h"
#define SIGSTOP 19
.code64
.global _start
_start:
1:
/*
* Simply put self into stopped state,
* the restorer will resume us anyway.
*/
movl $__NR_getpid, %eax
syscall
movl %eax, %edi
movl $__NR_kill, %eax
movl $SIGSTOP, %esi
syscall
jmp 1b
OUTPUT_FORMAT("elf64-x86-64", "elf64-x86-64", "elf64-x86-64")
OUTPUT_ARCH(i386:x86-64)
SECTIONS
{
. = 0x400000;
ENTRY(_start)
.text : {
*(.text)
. = ALIGN(8);
}
.data ALIGN(0x2000) : {
*(.data)
*(.bss)
. = ALIGN(8);
}
}
/*
* RBtree implementation adopted from the Linux
* kernel sources.
*/
#include "rbtree.h"
static void __rb_rotate_left(struct rb_node *node, struct rb_root *root)
{
struct rb_node *right = node->rb_right;
struct rb_node *parent = rb_parent(node);
if ((node->rb_right = right->rb_left))
rb_set_parent(right->rb_left, node);
right->rb_left = node;
rb_set_parent(right, parent);
if (parent) {
if (node == parent->rb_left)
parent->rb_left = right;
else
parent->rb_right = right;
} else
root->rb_node = right;
rb_set_parent(node, right);
}
static void __rb_rotate_right(struct rb_node *node, struct rb_root *root)
{
struct rb_node *left = node->rb_left;
struct rb_node *parent = rb_parent(node);
if ((node->rb_left = left->rb_right))
rb_set_parent(left->rb_right, node);
left->rb_right = node;
rb_set_parent(left, parent);
if (parent) {
if (node == parent->rb_right)
parent->rb_right = left;
else
parent->rb_left = left;
} else
root->rb_node = left;
rb_set_parent(node, left);
}
void rb_insert_color(struct rb_node *node, struct rb_root *root)
{
struct rb_node *parent, *gparent;
while ((parent = rb_parent(node)) && rb_is_red(parent)) {
gparent = rb_parent(parent);
if (parent == gparent->rb_left) {
{
register struct rb_node *uncle = gparent->rb_right;
if (uncle && rb_is_red(uncle)) {
rb_set_black(uncle);
rb_set_black(parent);
rb_set_red(gparent);
node = gparent;
continue;
}
}
if (parent->rb_right == node) {
register struct rb_node *tmp;
__rb_rotate_left(parent, root);
tmp = parent;
parent = node;
node = tmp;
}
rb_set_black(parent);
rb_set_red(gparent);
__rb_rotate_right(gparent, root);
} else {
{
register struct rb_node *uncle = gparent->rb_left;
if (uncle && rb_is_red(uncle)) {
rb_set_black(uncle);
rb_set_black(parent);
rb_set_red(gparent);
node = gparent;
continue;
}
}
if (parent->rb_left == node) {
register struct rb_node *tmp;
__rb_rotate_right(parent, root);
tmp = parent;
parent = node;
node = tmp;
}
rb_set_black(parent);
rb_set_red(gparent);
__rb_rotate_left(gparent, root);
}
}
rb_set_black(root->rb_node);
}
static void __rb_erase_color(struct rb_node *node, struct rb_node *parent,
struct rb_root *root)
{
struct rb_node *other;
while ((!node || rb_is_black(node)) && node != root->rb_node) {
if (parent->rb_left == node) {
other = parent->rb_right;
if (rb_is_red(other)) {
rb_set_black(other);
rb_set_red(parent);
__rb_rotate_left(parent, root);
other = parent->rb_right;
}
if ((!other->rb_left || rb_is_black(other->rb_left)) &&
(!other->rb_right || rb_is_black(other->rb_right))) {
rb_set_red(other);
node = parent;
parent = rb_parent(node);
} else {
if (!other->rb_right || rb_is_black(other->rb_right)) {
rb_set_black(other->rb_left);
rb_set_red(other);
__rb_rotate_right(other, root);
other = parent->rb_right;
}
rb_set_color(other, rb_color(parent));
rb_set_black(parent);
rb_set_black(other->rb_right);
__rb_rotate_left(parent, root);
node = root->rb_node;
break;
}
} else {
other = parent->rb_left;
if (rb_is_red(other)) {
rb_set_black(other);
rb_set_red(parent);
__rb_rotate_right(parent, root);
other = parent->rb_left;
}
if ((!other->rb_left || rb_is_black(other->rb_left)) &&
(!other->rb_right || rb_is_black(other->rb_right))) {
rb_set_red(other);
node = parent;
parent = rb_parent(node);
} else {
if (!other->rb_left || rb_is_black(other->rb_left)) {
rb_set_black(other->rb_right);
rb_set_red(other);
__rb_rotate_left(other, root);
other = parent->rb_left;
}
rb_set_color(other, rb_color(parent));
rb_set_black(parent);
rb_set_black(other->rb_left);
__rb_rotate_right(parent, root);
node = root->rb_node;
break;
}
}
}
if (node)
rb_set_black(node);
}
void rb_erase(struct rb_node *node, struct rb_root *root)
{
struct rb_node *child, *parent;
int color;
if (!node->rb_left)
child = node->rb_right;
else if (!node->rb_right)
child = node->rb_left;
else {
struct rb_node *old = node, *left;
node = node->rb_right;
while ((left = node->rb_left) != NULL)
node = left;
if (rb_parent(old)) {
if (rb_parent(old)->rb_left == old)
rb_parent(old)->rb_left = node;
else
rb_parent(old)->rb_right = node;
} else
root->rb_node = node;
child = node->rb_right;
parent = rb_parent(node);
color = rb_color(node);
if (parent == old) {
parent = node;
} else {
if (child)
rb_set_parent(child, parent);
parent->rb_left = child;
node->rb_right = old->rb_right;
rb_set_parent(old->rb_right, node);
}
node->rb_parent_color = old->rb_parent_color;
node->rb_left = old->rb_left;
rb_set_parent(old->rb_left, node);
goto color;
}
parent = rb_parent(node);
color = rb_color(node);
if (child)
rb_set_parent(child, parent);
if (parent) {
if (parent->rb_left == node)
parent->rb_left = child;
else
parent->rb_right = child;
} else
root->rb_node = child;
color:
if (color == RB_BLACK)
__rb_erase_color(child, parent, root);
}
struct rb_node *rb_first(const struct rb_root *root)
{
struct rb_node *n;
n = root->rb_node;
if (!n)
return NULL;
while (n->rb_left)
n = n->rb_left;
return n;
}
struct rb_node *rb_last(const struct rb_root *root)
{
struct rb_node *n;
n = root->rb_node;
if (!n)
return NULL;
while (n->rb_right)
n = n->rb_right;
return n;
}
struct rb_node *rb_next(const struct rb_node *node)
{
struct rb_node *parent;
if (rb_parent(node) == node)
return NULL;
if (node->rb_right) {
node = node->rb_right;
while (node->rb_left)
node=node->rb_left;
return (struct rb_node *)node;
}
while ((parent = rb_parent(node)) && node == parent->rb_right)
node = parent;
return parent;
}
struct rb_node *rb_prev(const struct rb_node *node)
{
struct rb_node *parent;
if (rb_parent(node) == node)
return NULL;
if (node->rb_left) {
node = node->rb_left;
while (node->rb_right)
node=node->rb_right;
return (struct rb_node *)node;
}
while ((parent = rb_parent(node)) && node == parent->rb_left)
node = parent;
return parent;
}
void rb_replace_node(struct rb_node *victim, struct rb_node *new,
struct rb_root *root)
{
struct rb_node *parent = rb_parent(victim);
if (parent) {
if (victim == parent->rb_left)
parent->rb_left = new;
else
parent->rb_right = new;
} else {
root->rb_node = new;
}
if (victim->rb_left)
rb_set_parent(victim->rb_left, new);
if (victim->rb_right)
rb_set_parent(victim->rb_right, new);
*new = *victim;
}
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