[Bug math/6740] New: Build failiure on powerpc when using --enable-kernel=2.6.22 or higher

[Bug math/6740] New: Build failiure on powerpc when using --enable-kernel=2.6.22 or higher

[cseo at linux dot vnet dot ibm dot com]

Recently, Hiroki Kaminaga reported a build failure on powerpc  on libc-help:

http://sourceware.org/ml/libc-help/2008-04/msg00002.html

This happens when building using the option '--enable-kernel=<version>', where
<version> is 2.6.22 or higher. Investigation shows that this happens because a
missing __ASSUME_PRIVATE_FUTEX guard around the usage of struct pthread's struct
header, private_futex member.

-- 
           Summary: Build failiure on powerpc when using --enable-
                    kernel=2.6.22 or higher
           Product: glibc
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: math
        AssignedTo: cseo at linux dot vnet dot ibm dot com
        ReportedBy: cseo at linux dot vnet dot ibm dot com
                CC: glibc-bugs at sources dot redhat dot com
 GCC build triplet: powerpc-linux


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[Bug math/6740] Build failiure on powerpc when using --enable-kernel=2.6.22 or higher

[rsa at us dot ibm dot com]

------- Additional Comments From rsa at us dot ibm dot com  2008-07-11 20:40 -------
The following patch is part of a patch that was submitted by Hiroki Kaminaga to
libc-help on April 28, 2008.

Here's a summary of the analysis I performed upon his original patch which
excludes the necessity of adding tcbhead_t.private_futex in
nptl/sysdeps/powerpc/tls.h

http://sourceware.org/ml/libc-help/2008-07/msg00042.html

I've attached a ChangeLog.

2008-04-28  Hiroki Kaminaga  <kaminaga@sm.sony.co.jp>

	[BZ 6740]
	nptl/sysdeps/powerpc/tcb-offsets.sym (PRIVATE_FUTEX_OFFSET):
	Guard sym definition with #ifndef __ASSUME_PRIVATE_FUTEX.

--- a/nptl/sysdeps/powerpc/tcb-offsets.sym
+++ b/nptl/sysdeps/powerpc/tcb-offsets.sym
@@ -15,4 +15,6 @@ MULTIPLE_THREADS_OFFSET               thread_offsetof
 PID                            thread_offsetof (pid)
 TID                            thread_offsetof (tid)
 POINTER_GUARD                  (offsetof (tcbhead_t, pointer_guard) -
TLS_TCB_OFFSET - sizeof (tcbhead_t))
+#ifndef __ASSUME_PRIVATE_FUTEX
 PRIVATE_FUTEX_OFFSET           thread_offsetof (header.private_futex)
+#endif

-- 


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[Bug math/6740] Build failiure on powerpc when using --enable-kernel=2.6.22 or higher

[cseo at linux dot vnet dot ibm dot com]

------- Additional Comments From cseo at linux dot vnet dot ibm dot com  2008-07-11 20:52 -------
Build completed successfully with '--enable-kernel=2.6.22' using the previously
attached patch.

-- 


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[Bug math/6740] Build failiure on powerpc when using --enable-kernel=2.6.22 or higher

[rsa at us dot ibm dot com]

------- Additional Comments From rsa at us dot ibm dot com  2008-07-14 15:09 -------
link to libc-alpha posting where this is submitted:

http://www.sourceware.org/ml/libc-alpha/2008-07/msg00021.html

-- 


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[Bug math/6740] Build failiure on powerpc when using --enable-kernel=2.6.22 or higher

[rsa at us dot ibm dot com]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED


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[Bug nptl/6740] Build failiure on powerpc when using --enable-kernel=2.6.22 or higher

[drepper at redhat dot com]

------- Additional Comments From drepper at redhat dot com  2008-07-26 16:26 -------
Fixed in cvs.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
          Component|math                        |nptl
         Resolution|                            |FIXED


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