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Automated import from //branches/master/...@142824,142824

This commit is contained in:
Iliyan Malchev 2009-03-25 18:09:52 -07:00 committed by The Android Open Source Project
parent 7bbec3ab97
commit c87cb75a66
1 changed files with 71 additions and 40 deletions
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111
tools/apriori/prelinkmap.c
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@ -7,11 +7,14 @@
typedef struct mapentry mapentry;
#define MAX_ALIASES 10
struct mapentry
{
mapentry *next;
unsigned base;
char name[0];
char *names[MAX_ALIASES];
int num_names;
};
static mapentry *maplist = 0;
@ -22,14 +25,13 @@ static mapentry *maplist = 0;
*/
#define PRELINK_MIN 0x90000000
#define PRELINK_MAX 0xB0000000
#define PRELINK_MAX 0xBFFFFFFF
void pm_init(const char *file)
{
unsigned line = 0;
char buf[256];
char *x;
unsigned n;
FILE *fp;
mapentry *me;
unsigned last = -1UL;
@ -65,26 +67,52 @@ void pm_init(const char *file)
continue;
}
n = strtoul(x, 0, 16);
/* Note that this is not the only bounds check. If a library's size
exceeds its slot as defined in the prelink map, the prelinker will
exit with an error. See pm_report_library_size_in_memory().
*/
FAILIF((n < PRELINK_MIN) || (n > PRELINK_MAX),
"%s:%d base 0x%08x out of range.\n",
file, line, n);
me = malloc(sizeof(mapentry) + strlen(buf) + 1);
FAILIF(me == NULL, "Out of memory parsing %s\n", file);
if (isalpha(*x)) {
/* Assume that this is an alias, and look through the list of
already-installed libraries.
*/
me = maplist;
while(me) {
/* The strlen() call ignores the newline at the end of x */
if (!strncmp(me->names[0], x, strlen(me->names[0]))) {
PRINT("Aliasing library %s to %s at %08x\n",
buf, x, me->base);
break;
}
me = me->next;
}
FAILIF(!me, "Nonexistent alias %s -> %s\n", buf, x);
}
else {
unsigned n = strtoul(x, 0, 16);
/* Note that this is not the only bounds check. If a library's
size exceeds its slot as defined in the prelink map, the
prelinker will exit with an error. See
pm_report_library_size_in_memory().
*/
FAILIF((n < PRELINK_MIN) || (n > PRELINK_MAX),
"%s:%d base 0x%08x out of range.\n",
file, line, n);
FAILIF(last <= n, "The prelink map is not in descending order "
"at entry %s (%08x)!\n", buf, n);
last = n;
me->base = n;
strcpy(me->name, buf);
me->next = maplist;
maplist = me;
me = malloc(sizeof(mapentry));
FAILIF(me == NULL, "Out of memory parsing %s\n", file);
FAILIF(last <= n, "The prelink map is not in descending order "
"at entry %s (%08x)!\n", buf, n);
last = n;
me->base = n;
me->next = maplist;
me->num_names = 0;
maplist = me;
}
FAILIF(me->num_names >= MAX_ALIASES,
"Too many aliases for library %s, maximum is %d.\n",
me->names[0],
MAX_ALIASES);
me->names[me->num_names] = strdup(buf);
me->num_names++;
}
fclose(fp);
@ -99,41 +127,44 @@ void pm_report_library_size_in_memory(const char *name,
{
char *x;
mapentry *me;
int n;
x = strrchr(name,'/');
if(x) name = x+1;
for(me = maplist; me; me = me->next){
if(!strcmp(name, me->name)) {
off_t slot = me->next ? me->next->base : PRELINK_MAX;
slot -= me->base;
FAILIF(fsize > slot,
"prelink map error: library %s@0x%08x is too big "
"at %lld bytes, it runs %lld bytes into "
"library %s@0x%08x!\n",
me->name, me->base, fsize, fsize - slot,
me->next->name, me->next->base);
break;
for (n = 0; n < me->num_names; n++) {
if(!strcmp(name, me->names[n])) {
off_t slot = me->next ? me->next->base : PRELINK_MAX;
slot -= me->base;
FAILIF(fsize > slot,
"prelink map error: library %s@0x%08x is too big "
"at %lld bytes, it runs %lld bytes into "
"library %s@0x%08x!\n",
me->names[0], me->base, fsize, fsize - slot,
me->next->names[0], me->next->base);
return;
}
}
}
FAILIF(!me,"library '%s' not in prelink map\n", name);
FAILIF(1, "library '%s' not in prelink map\n", name);
}
unsigned pm_get_next_link_address(const char *lookup_name)
{
char *x;
mapentry *me;
int n;
x = strrchr(lookup_name,'/');
if(x) lookup_name = x+1;
for(me = maplist; me; me = me->next){
if(!strcmp(lookup_name, me->name)) {
return me->base;
}
}
FAILIF(1==1,"library '%s' not in prelink map\n", lookup_name);
for(me = maplist; me; me = me->next)
for (n = 0; n < me->num_names; n++)
if(!strcmp(lookup_name, me->names[n]))
return me->base;
FAILIF(1, "library '%s' not in prelink map\n", lookup_name);
return 0;
}