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2002-12-03 Roland McGrath <roland@redhat.com>

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* sysdeps/generic/libc-tls.c (__libc_setup_tls): Include static TLS
	area surplus in calculation for sbrk call.
This commit is contained in:
Roland McGrath 2002-12-04 04:20:07 +00:00
parent 69cae3cfaf
commit e7e6e437da
1 changed files with 10 additions and 3 deletions
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13
sysdeps/generic/libc-tls.c
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@ -106,15 +106,22 @@ __libc_setup_tls (size_t tcbsize, size_t tcbalign)
/* We do not need a TLS block and no thread descriptor. */
return;
/* We have to set up the TCB block which also (possibly) contains
'errno'. Therefore we avoid 'malloc' which might touch 'errno'.
Instead we use 'sbrk' which would only uses 'errno' if it fails.
In this case we are right away out of memory and the user gets
what she/he deserves. */
what she/he deserves.
The initialized value of _dl_tls_static_size is provided by dl-open.c
to request some surplus that permits dynamic loading of modules with
IE-model TLS. */
# if TLS_TCB_AT_TP
tlsblock = __sbrk (roundup (memsz, tcbalign) + tcbsize + max_align);
tlsblock = __sbrk (roundup (memsz, tcbalign) + tcbsize + max_align
+ GL(dl_tls_static_size));
# elif TLS_DTV_AT_TP
tlsblock = __sbrk (roundup (tcbsize, align) + memsz + max_align);
tlsblock = __sbrk (roundup (tcbsize, align) + memsz + max_align
+ GL(dl_tls_static_size));
# else
/* In case a model with a different layout for the TCB and DTV
is defined add another #elif here and in the following #ifs. */