From: Kevin Buettner <kevinb@cygnus.com>
To: gdb-patches@sources.redhat.com
Subject: Re: [PATCH RFA] utils.c: Fix xcalloc (0, 0) behavior
Date: Sat, 03 Mar 2001 00:02:00 -0000 [thread overview]
Message-ID: <1010303080201.ZM24137@ocotillo.lan> (raw)
In-Reply-To: <1010303075808.ZM24102@ocotillo.lan>
On Mar 3, 12:58am, Kevin Buettner wrote:
> Unfortunately, our implementation of xcalloc() and xmrealloc() choose
> to treat the NULL return value as an error condition and call nomem()
> as a result.
It just occurred to me that someone reviewing this patch may want
to know which xcalloc() call in gdb was responsible for generating
a zero-sized request. See below for the backtrace...
Breakpoint 3, nomem (size=0) at /saguaro1/sourceware-ia64/src/gdb/utils.c:1005
1005 if (size > 0)
(top-gdb) bt 8
#0 nomem (size=0) at /saguaro1/sourceware-ia64/src/gdb/utils.c:1005
During symbol reading, type qualifier 'const' ignored.
#1 0x20000100f0162380 in xcalloc (number=0, size=8)
at /saguaro1/sourceware-ia64/src/gdb/utils.c:1076
#2 0x20000100f00f6760 in alloc_gdbarch_data (gdbarch=0x10000024f18)
at /saguaro1/sourceware-ia64/src/gdb/gdbarch.c:4229
#3 0x20000100f00eb8d0 in gdbarch_alloc (info=0x3fefffff3d7c0,
tdep=0x10000024eb0) at /saguaro1/sourceware-ia64/src/gdb/gdbarch.c:393
#4 0x20000100f01a4ee0 in ia64_gdbarch_init (info={
bfd_architecture = bfd_arch_ia64, bfd_arch_info = 0x300341fb8,
byte_order = 1234, abfd = 0x0, tdep_info = 0x0}, arches=0x0)
at /saguaro1/sourceware-ia64/src/gdb/ia64-tdep.c:1971
#5 0x20000100f00f7aa0 in gdbarch_update_p (info={
bfd_architecture = bfd_arch_ia64, bfd_arch_info = 0x300341fb8,
byte_order = 1234, abfd = 0x0, tdep_info = 0x0})
at /saguaro1/sourceware-ia64/src/gdb/gdbarch.c:4579
#6 0x20000100f00f90a0 in initialize_current_architecture ()
at /saguaro1/sourceware-ia64/src/gdb/arch-utils.c:685
During symbol reading, type qualifier 'volatile' ignored.
#7 0x20000100f015b070 in gdb_init (
argv0=0x3fefffffff880 "/home/kev/sourceware-ia64-bld/gdb/gdb")
at /saguaro1/sourceware-ia64/src/gdb/top.c:685
next parent reply other threads:[~2001-03-03 0:02 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1010303075808.ZM24102@ocotillo.lan>
2001-03-03 0:02 ` Kevin Buettner [this message]
2001-03-05 12:28 ` Andrew Cagney
2001-03-05 12:39 ` J.T. Conklin
2001-03-05 12:51 ` Kevin Buettner
2001-03-05 7:52 David Taylor
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