From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kevin Buettner 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 Message-id: <1010303080201.ZM24137@ocotillo.lan> References: <1010303075808.ZM24102@ocotillo.lan> X-SW-Source: 2001-03/msg00053.html 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