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Diffstat (limited to 'elf/cache.c')
-rw-r--r--elf/cache.c62
1 files changed, 47 insertions, 15 deletions
diff --git a/elf/cache.c b/elf/cache.c
index 378ce8f..19237bb 100644
--- a/elf/cache.c
+++ b/elf/cache.c
@@ -39,6 +39,7 @@ struct cache_entry
char *lib; /* Library name. */
char *path; /* Path to find library. */
int flags; /* Flags to indicate kind of library. */
+ unsigned int osversion; /* Required OS version. */
uint64_t hwcap; /* Important hardware capabilities. */
int bits_hwcap; /* Number of bits set in hwcap. */
struct cache_entry *next; /* Next entry in list. */
@@ -52,7 +53,8 @@ static const char *flag_descr[] =
/* Print a single entry. */
static void
-print_entry (const char *lib, int flag, uint64_t hwcap, const char *key)
+print_entry (const char *lib, int flag, unsigned int osversion,
+ uint64_t hwcap, const char *key)
{
printf ("\t%s (", lib);
switch (flag & FLAG_TYPE_MASK)
@@ -61,7 +63,7 @@ print_entry (const char *lib, int flag, uint64_t hwcap, const char *key)
case FLAG_ELF:
case FLAG_ELF_LIBC5:
case FLAG_ELF_LIBC6:
- fputs (flag_descr [flag & FLAG_TYPE_MASK], stdout);
+ fputs (flag_descr[flag & FLAG_TYPE_MASK], stdout);
break;
default:
fputs ("unknown", stdout);
@@ -85,6 +87,23 @@ print_entry (const char *lib, int flag, uint64_t hwcap, const char *key)
}
if (hwcap != 0)
printf (", hwcap: 0x%" PRIx64, hwcap);
+ if (osversion != 0)
+ {
+ static const char *const abi_tag_os[] =
+ {
+ [0] = "Linux",
+ [1] = "Hurd",
+ [2] = "Solaris",
+ [3] = "Unknown OS"
+ };
+ unsigned int os = osversion >> 24;
+
+ printf (", OS ABI: %s %d.%d.%d",
+ abi_tag_os[os > 3 ? 3 : os],
+ (osversion >> 16) & 0xff,
+ (osversion >> 8) & 0xff,
+ osversion & 0xff);
+ }
printf (") => %s\n", key);
}
@@ -139,7 +158,8 @@ print_cache (const char *cache_name)
else
{
size_t offset = ALIGN_CACHE (sizeof (struct cache_file)
- + cache->nlibs * sizeof (struct file_entry));
+ + (cache->nlibs
+ * sizeof (struct file_entry)));
/* This is where the strings start. */
cache_data = (const char *) &cache->libs[cache->nlibs];
@@ -150,9 +170,10 @@ print_cache (const char *cache_name)
cache_new = (struct cache_file_new *) ((void *)cache + offset);
- if (!memcmp (cache_new->magic, CACHEMAGIC_NEW, sizeof CACHEMAGIC_NEW - 1)
- && !memcmp (cache_new->version, CACHE_VERSION,
- sizeof CACHE_VERSION - 1))
+ if (memcmp (cache_new->magic, CACHEMAGIC_NEW,
+ sizeof CACHEMAGIC_NEW - 1) == 0
+ && memcmp (cache_new->version, CACHE_VERSION,
+ sizeof CACHE_VERSION - 1) == 0)
{
cache_data = (const char *) cache_new;
format = 1;
@@ -167,17 +188,19 @@ print_cache (const char *cache_name)
/* Print everything. */
for (i = 0; i < cache->nlibs; i++)
print_entry (cache_data + cache->libs[i].key,
- cache->libs[i].flags, 0,
+ cache->libs[i].flags, 0, 0,
cache_data + cache->libs[i].value);
}
else if (format == 1)
{
- printf (_("%d libs found in cache `%s'\n"), cache_new->nlibs, cache_name);
+ printf (_("%d libs found in cache `%s'\n"),
+ cache_new->nlibs, cache_name);
/* Print everything. */
for (i = 0; i < cache_new->nlibs; i++)
print_entry (cache_data + cache_new->libs[i].key,
cache_new->libs[i].flags,
+ cache_new->libs[i].osversion,
cache_new->libs[i].hwcap,
cache_data + cache_new->libs[i].value);
}
@@ -217,6 +240,10 @@ int compare (const struct cache_entry *e1, const struct cache_entry *e2)
return 1;
else if (e2->hwcap < e1->hwcap)
return -1;
+ if (e2->osversion > e1->osversion)
+ return 1;
+ if (e2->osversion < e1->osversion)
+ return -1;
}
return res;
}
@@ -280,12 +307,15 @@ save_cache (const char *cache_name)
/* And the list of all entries in the new format. */
file_entries_new_size = sizeof (struct cache_file_new)
+ cache_entry_count * sizeof (struct file_entry_new);
- file_entries_new = (struct cache_file_new *) xmalloc (file_entries_new_size);
+ file_entries_new =
+ (struct cache_file_new *) xmalloc (file_entries_new_size);
/* Fill in the header. */
memset (file_entries_new, 0, sizeof (struct cache_file_new));
- memcpy (file_entries_new->magic, CACHEMAGIC_NEW, sizeof CACHEMAGIC_NEW - 1);
- memcpy (file_entries_new->version, CACHE_VERSION, sizeof CACHE_VERSION - 1);
+ memcpy (file_entries_new->magic, CACHEMAGIC_NEW,
+ sizeof CACHEMAGIC_NEW - 1);
+ memcpy (file_entries_new->version, CACHE_VERSION,
+ sizeof CACHE_VERSION - 1);
file_entries_new->nlibs = cache_entry_count;
file_entries_new->len_strings = total_strlen;
@@ -319,9 +349,9 @@ save_cache (const char *cache_name)
always begins at the beginning of the the new cache
struct. */
file_entries_new->libs[idx_new].flags = entry->flags;
+ file_entries_new->libs[idx_new].osversion = entry->osversion;
file_entries_new->libs[idx_new].hwcap = entry->hwcap;
file_entries_new->libs[idx_new].key = str_offset;
- file_entries_new->libs[idx_new].__unused = 0;
}
len = strlen (entry->lib);
str = stpcpy (str, entry->lib);
@@ -363,7 +393,8 @@ save_cache (const char *cache_name)
/* Write contents. */
if (opt_format != 2)
{
- if (write (fd, file_entries, file_entries_size) != (ssize_t)file_entries_size)
+ if (write (fd, file_entries, file_entries_size)
+ != (ssize_t)file_entries_size)
error (EXIT_FAILURE, errno, _("Writing of cache data failed"));
}
if (opt_format != 0)
@@ -371,7 +402,7 @@ save_cache (const char *cache_name)
/* Align cache. */
if (opt_format != 2)
{
- char zero [pad];
+ char zero[pad];
if (write (fd, zero, pad) != (ssize_t)pad)
error (EXIT_FAILURE, errno, _("Writing of cache data failed"));
}
@@ -414,7 +445,7 @@ save_cache (const char *cache_name)
/* Add one library to the cache. */
void
add_to_cache (const char *path, const char *lib, int flags,
- uint64_t hwcap)
+ unsigned int osversion, uint64_t hwcap)
{
struct cache_entry *new_entry, *ptr, *prev;
char *full_path;
@@ -430,6 +461,7 @@ add_to_cache (const char *path, const char *lib, int flags,
new_entry->lib = xstrdup (lib);
new_entry->path = full_path;
new_entry->flags = flags;
+ new_entry->osversion = osversion;
new_entry->hwcap = hwcap;
new_entry->bits_hwcap = 0;
generated by cgit v1.1 at 2024-11-03 16:15:35 +0000