d2bbd19d8e
The recent commit:
commit a0eda3df5b750ae32576a9be092b361281a41787
Author: Carl Love <cel@us.ibm.com>
Date: Mon Nov 14 16:22:37 2022 -0500
PowerPC, fix support for printing the function return value for non-trivial values.
Is generating a segmentation fault on x86_64-linux.
segfault:
...
PASS: gdb.asm/asm-source.exp: info source asmsrc1.s
ERROR: GDB process no longer exists
UNRESOLVED: gdb.asm/asm-source.exp: finish from foo3
...
Reproduced on command line:
...
$ gdb -q -batch -x outputs/gdb.asm/asm-source/gdb.in.1
...
The problem seems to be that:
...
Thread 1 "gdb" received signal SIGSEGV, Segmentation fault.
0x000000000043de7a in symbol::type (this=0x0) at
.../gdb_versions/devel/src/gdb/symtab.h:1287
1287 return m_type;
...
because:
...
(gdb) up
#1 0x0000000000852d94 in finish_command (arg=0x0, from_tty=0)
at .../gdb_versions/devel/src/gdb/infcmd.c:1887
1887 = check_typedef (sm->function->type ()->target_type ());
(gdb) p sm->function
$1 = (symbol *) 0x0
The code is not checking if sm->function is NULL. If sm->function is NULL
the check for the return buffer should be skipped.
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