[glibc/arm/morello/main] cheri: Update the static tls requirement of the libc

[Szabolcs Nagy <nsz@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=78412dcc6a173726a3db78c8a0626aec2f1dd42a

commit 78412dcc6a173726a3db78c8a0626aec2f1dd42a
Author: Szabolcs Nagy <szabolcs.nagy@arm.com>
Date:   Tue Oct 18 15:10:03 2022 +0100

    cheri: Update the static tls requirement of the libc
    
    Larger requirement because pointers are bigger.

Diff:
---
 elf/dl-tls.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/elf/dl-tls.c b/elf/dl-tls.c
index 093cdddb7e..1b90bf17b3 100644
--- a/elf/dl-tls.c
+++ b/elf/dl-tls.c
@@ -62,7 +62,11 @@
    observed PT_GNU_TLS sizes across all architectures.  Some
    architectures have lower values due to differences in type sizes
    and link editor capabilities.  */
+#ifdef __CHERI_PURE_CAPABILITY__
+#define LIBC_IE_TLS 256
+#else
 #define LIBC_IE_TLS 144
+#endif
 
 /* Size of initial-exec TLS in libraries other than libc.so.
    This should be large enough to cover runtime libraries of the
@@ -87,7 +91,11 @@ tls_static_surplus (int nns, int opt_tls)
    the computation of dl_tls_static_surplus in
    _dl_tls_static_surplus_init yields the historic value 1664, for
    backwards compatibility.  */
+#ifdef __CHERI_PURE_CAPABILITY__
+#define LEGACY_TLS 0
+#else
 #define LEGACY_TLS (1664 - tls_static_surplus (DEFAULT_NNS, OPTIONAL_TLS))
+#endif
 
 /* Calculate the size of the static TLS surplus, when the given
    number of audit modules are loaded.  Must be called after the