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static tls memory leak on TLS_DTV_AT_TP archs

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This commit is contained in:
Alan Modra
2011-05-07 21:27:51 -04:00
committed by Ulrich Drepper
parent c1e9ea3517
commit 66bdbaa452
3 changed files with 45 additions and 25 deletions
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36
elf/dl-close.c
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@ -591,21 +591,37 @@ _dl_close_worker (struct link_map *map)
}
}
#elif TLS_DTV_AT_TP
if ((size_t) imap->l_tls_offset == tls_free_end)
if (tls_free_start == NO_TLS_OFFSET)
{
tls_free_start = imap->l_tls_firstbyte_offset;
tls_free_end = (imap->l_tls_offset
+ imap->l_tls_blocksize);
}
else if (imap->l_tls_firstbyte_offset == tls_free_end)
/* Extend the contiguous chunk being reclaimed. */
tls_free_end -= imap->l_tls_blocksize;
tls_free_end = imap->l_tls_offset + imap->l_tls_blocksize;
else if (imap->l_tls_offset + imap->l_tls_blocksize
== tls_free_start)
/* Extend the chunk backwards. */
tls_free_start = imap->l_tls_offset;
else
tls_free_start = imap->l_tls_firstbyte_offset;
/* This isn't contiguous with the last chunk freed.
One of them will be leaked unless we can free
one block right away. */
else if (imap->l_tls_offset + imap->l_tls_blocksize
== GL(dl_tls_static_used))
GL(dl_tls_static_used) = imap->l_tls_firstbyte_offset;
else if (tls_free_end == GL(dl_tls_static_used))
{
/* This isn't contiguous with the last chunk freed.
One of them will be leaked. */
if (tls_free_end == GL(dl_tls_static_used))
GL(dl_tls_static_used) = tls_free_start;
tls_free_start = imap->l_tls_offset;
tls_free_end = tls_free_start + imap->l_tls_blocksize;
GL(dl_tls_static_used) = tls_free_start;
tls_free_start = imap->l_tls_firstbyte_offset;
tls_free_end = imap->l_tls_offset + imap->l_tls_blocksize;
}
else if (tls_free_end < imap->l_tls_firstbyte_offset)
{
/* We pick the later block. It has a chance to
be freed. */
tls_free_start = imap->l_tls_firstbyte_offset;
tls_free_end = imap->l_tls_offset + imap->l_tls_blocksize;
}
#else
# error "Either TLS_TCB_AT_TP or TLS_DTV_AT_TP must be defined"