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authorRichard Henderson <rth@twiddle.net>2014-01-24 09:07:04 -0800
committerRichard Henderson <rth@twiddle.net>2014-01-24 09:07:04 -0800
commit4ab6acaebd0047dc37c6493946484be9f1b4920b (patch)
tree1ec789f38b37b1226e56b8500286065b5f88d00e /ports
parent47590bce28616abbcee93457da91d65a7a07589b (diff)
downloadglibc-4ab6acaebd0047dc37c6493946484be9f1b4920b.tar.gz
alpha: Fix tls-macros.h
Reported to the gcc bugzilla, there was a missing dependency on $gp that let the compiler generated $gp reload be scheduled across the macros here.
Diffstat (limited to 'ports')
-rw-r--r--ports/ChangeLog.alpha5
-rw-r--r--ports/sysdeps/alpha/tls-macros.h22
2 files changed, 16 insertions, 11 deletions
diff --git a/ports/ChangeLog.alpha b/ports/ChangeLog.alpha
index 24540e4dbd..a23ada5b9f 100644
--- a/ports/ChangeLog.alpha
+++ b/ports/ChangeLog.alpha
@@ -1,3 +1,8 @@
+2014-01-24 Richard Henderson <rth@redhat.com>
+
+ * sysdeps/alpha/tls-macros.h (TLS_GD): Add dependency on $gp.
+ (TLS_LD, TLS_IE): Likewise.
+
2013-12-07 Richard Henderson <rth@redhat.com>
* sysdeps/unix/sysv/linux/alpha/bits/mman.h: Use <bits/mman-linux.h>,
diff --git a/ports/sysdeps/alpha/tls-macros.h b/ports/sysdeps/alpha/tls-macros.h
index 0385d93e2a..00489c289f 100644
--- a/ports/sysdeps/alpha/tls-macros.h
+++ b/ports/sysdeps/alpha/tls-macros.h
@@ -2,21 +2,21 @@
extern void *__tls_get_addr (void *);
-# define TLS_GD(x) \
- ({ void *__result; \
- asm ("lda %0, " #x "($gp) !tlsgd" : "=r" (__result)); \
+# define TLS_GD(x) \
+ ({ register void *__gp asm ("$29"); void *__result; \
+ asm ("lda %0, " #x "($gp) !tlsgd" : "=r" (__result) : "r"(__gp)); \
__tls_get_addr (__result); })
-# define TLS_LD(x) \
- ({ void *__result; \
- asm ("lda %0, " #x "($gp) !tlsldm" : "=r" (__result)); \
- __result = __tls_get_addr (__result); \
- asm ("lda %0, " #x "(%0) !dtprel" : "+r" (__result)); \
+# define TLS_LD(x) \
+ ({ register void *__gp asm ("$29"); void *__result; \
+ asm ("lda %0, " #x "($gp) !tlsldm" : "=r" (__result) : "r"(__gp)); \
+ __result = __tls_get_addr (__result); \
+ asm ("lda %0, " #x "(%0) !dtprel" : "+r" (__result)); \
__result; })
-# define TLS_IE(x) \
- ({ long ofs; \
- asm ("ldq %0, " #x "($gp) !gottprel" : "=r"(ofs)); \
+# define TLS_IE(x) \
+ ({ register void *__gp asm ("$29"); long ofs; \
+ asm ("ldq %0, " #x "($gp) !gottprel" : "=r"(ofs) : "r"(__gp)); \
__builtin_thread_pointer () + ofs; })
# define TLS_LE(x) \