On 06/19/2016 11:09 PM, Andy Lutomirski wrote: > > The latter bit is a mess and is probably broken on current kernels for > 64-bit gdb attached to a 32-bit process. (Is it? All of this stuff > is a bit of a pain to test.)
The testcase at: https://sourceware.org/ml/gdb/2014-05/msg00004.html still fails for me on Fedora 23 with git master gdb. Nevermind the misleading URL, that's a kernel patch. $ gcc -g -m32 interrupt.c -o interrupt.32 ... (gdb) r Starting program: /home/pedro/tmp/interrupt.32 talk to me baby ^C Program received signal SIGINT, Interrupt. 0xf7fd9d49 in __kernel_vsyscall () (gdb) p func1() $1 = 4 (gdb) c Continuing. Unknown error 512 [Inferior 1 (process 20252) exited with code 01] (gdb) That was a 64-bit gdb. Note it doesn't fail with fedora 23's gdb, because of a fedora-local workaround. Thanks, Pedro Alves
