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72 lines
2.1 KiB
72 lines
2.1 KiB
5 years ago
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From FEDORA_PATCHES Mon Sep 17 00:00:00 2001
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From: Fedora GDB patches <invalid@email.com>
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Date: Fri, 27 Oct 2017 21:07:50 +0200
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Subject: gdb-bz568248-oom-is-error.patch
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;; Out of memory is just an error, not fatal (uninitialized VLS vars, BZ 568248).
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;;=push+jan: Inferior objects should be read in parts, then this patch gets obsoleted.
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http://sourceware.org/ml/gdb-patches/2010-06/msg00005.html
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Hi,
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unfortunately I see this problem reproducible only with the
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archer-jankratochvil-vla branch (VLA = Variable Length Arrays - char[var]).
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OTOH this branch I hopefully submit in some form for FSF GDB later.
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In this case (a general problem but tested for example on Fedora 13 i686):
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int
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main (int argc, char **argv)
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{
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char a[argc];
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return a[0];
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}
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(gdb) start
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(gdb) print a
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../../gdb/utils.c:1251: internal-error: virtual memory exhausted: can't allocate 4294951689 bytes.
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It is apparently because boundary for the variable `a' is not initialized
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there. Users notice it due to Eclipse-CDT trying to automatically display all
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the local variables on each step.
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Apparentl no regressions on {x86_64,x86_64-m32,i686}-fedora13-linux-gnu.
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But is anone aware of the reasons to use internal_error there?
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I find simple error as a perfectly reasonable there.
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(history only tracks it since the initial import)
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IIRC this idea has been discussed with Tom Tromey, not sure of its origin.
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I understand it may be offtopic for FSF GDB but from some GDB crashes I am not
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sure if it can happen only due to the VLA variables.
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Thanks,
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Jan
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gdb/
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2010-06-01 Jan Kratochvil <jan.kratochvil@redhat.com>
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Tom Tromey <tromey@redhat.com>
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* utils.c (nomem): Change internal_error to error.
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diff --git a/gdb/utils.c b/gdb/utils.c
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--- a/gdb/utils.c
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+++ b/gdb/utils.c
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@@ -721,13 +721,11 @@ malloc_failure (long size)
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{
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if (size > 0)
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{
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- internal_error (__FILE__, __LINE__,
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- _("virtual memory exhausted: can't allocate %ld bytes."),
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- size);
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+ error (_("virtual memory exhausted: can't allocate %ld bytes."), size);
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}
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else
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{
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- internal_error (__FILE__, __LINE__, _("virtual memory exhausted."));
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+ error (_("virtual memory exhausted."));
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}
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}
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