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build/2404: gdb 6.7.1 fails to build with gcc-4.2.2 on aix 5.2
- From: T dot Mittelstaedt at cadenas dot de
- To: gdb-gnats at sources dot redhat dot com
- Date: 15 Jan 2008 14:43:22 -0000
- Subject: build/2404: gdb 6.7.1 fails to build with gcc-4.2.2 on aix 5.2
- Reply-to: T dot Mittelstaedt at cadenas dot de
>Number: 2404
>Category: build
>Synopsis: gdb 6.7.1 fails to build with gcc-4.2.2 on aix 5.2
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: unassigned
>State: open
>Class: change-request
>Submitter-Id: net
>Arrival-Date: Tue Jan 15 14:48:01 UTC 2008
>Closed-Date:
>Last-Modified:
>Originator: T.Mittelstaedt@cadenas.de
>Release: gdb 6.7.1
>Organization:
>Environment:
tmstaedt@buildaix3$ gcc -v
Using built-in specs.
Target: powerpc-ibm-aix5.2.0.0
Configured with: ../gcc-4.2.2/configure --enable-version-specific-runtime-libs --enable-static --enable-shared --enable-threads --with-as=/usr/bin/as --without-gnu-ld --with-ld=/usr/bin/ld --prefix=/opt/gcc-4.2.2 --disable-nls --with-pic --disable-symvers --enable-symvers=no --enable-languages=c,c++,objc
Thread model: aix
gcc version 4.2.2
>Description:
gdb 6.7.1 fails to build with gcc-4.2.2 on aix 5.2
"warning: dereferencing type-punned pointer will break strict-aliasing rules"
gdb/aix-thread.c is compiled with -Werror and calls to
ptrace32 (PTT_READ_FPRS, tid, (int *) fprs, 0, NULL))
will cause above warnings to cause build failure
replaced the (int *) casts with (void*)
>How-To-Repeat:
>Fix:
diff gdb/aix-thread.c~ gdb/aix-thread.c
366c366,367
< if (!ptrace32 (PTT_READ_FPRS, tid, (int *) fprs, 0, NULL))
---
> int *pfprs = (void *)fprs;
> if (!ptrace32 (PTT_READ_FPRS, tid, pfprs, 0, NULL))
437c438
< ptrace32 (PTT_WRITE_SPRS, tid, (int *) &context->msr, 0, NULL);
---
> ptrace32 (PTT_WRITE_SPRS, tid, (void *) &context->msr, 0, NULL);
987c988
< target_signal_to_host (sig), (int *) tid);
---
> target_signal_to_host (sig), (void *) tid);
990c991
< target_signal_to_host (sig), (int *) tid);
---
> target_signal_to_host (sig), (void *) tid);
1228c1229
< if (!ptrace32 (PTT_READ_FPRS, tid, (int *) fprs, 0, NULL))
---
> if (!ptrace32 (PTT_READ_FPRS, tid, (void *) fprs, 0, NULL))
1542c1543
< ptrace32 (PTT_READ_FPRS, tid, (int *) fprs, 0, NULL);
---
> ptrace32 (PTT_READ_FPRS, tid, (void *) fprs, 0, NULL);
1544c1545
< ptrace32 (PTT_WRITE_FPRS, tid, (int *) fprs, 0, NULL);
---
> ptrace32 (PTT_WRITE_FPRS, tid, (void *) fprs, 0, NULL);
>Release-Note:
>Audit-Trail:
>Unformatted:
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