Pedro Alves 6f64ef53c0 GDB kills itself instead of interrupting inferior ... When GDB is run with IO redirected to a pipe, the 'interrupt' command causes it to kill its own process group instead of the inferior's. The problem manifests itself in async mode, native debugging: $ cat | gdb <file> (gdb) set target-async on (gdb) run & (gdb) interrupt A debugging session is active. Inferior 1 [process 20584] will be killed. Quit anyway? (y or n) [answered Y; input not from terminal] In this case, GDB tells that its stdin isn't a tty and doesn't save the inferior's process group in inflow.c:terminal_init_inferior_with_pgrp. The 'interrupt' command tries to 'kill' the inferior's process group in `inf-ptrace.c:inf_ptrace_stop`, but since that wasn't saved in the first place, GDB kills process group 0, meaning, its own process group. When GDB is used from a frontend, that means killing its own process group including the frontend and possibly the X session. This was originally seen with SublimeGDB: https://github.com/quarnster/SublimeGDB/issues/29. The patch makes GDB save the inferior pgid regardless of having a terminal, as pgid is used not only to reset foreground process group, but also to interrupt the inferior process. It also adds a regression test. Luckily, we can emulate not having a terminal with "set interactive-mode off", avoiding the need of special magic to spawn gdb with a pipe. Tested on x86_64 Fedora 17. gdb/ 2013-07-26 Cyril Nikolaev <cyril@nichtverstehen.de> * inflow.c (terminal_init_inferior_with_pgrp): Save inferior process group regardless of having tty on stdin. gdb/testsuite/ 2013-07-26 Pedro Alves <palves@redhat.com> * gdb.base/interrupt-noterm.c, gdb.base/interrupt-noterm.exp: New files.		2013-07-26 11:15:45 +00:00
..
boards	* boards/native-stdio-gdbserver.exp (${board}_build_remote_cmd): Pass	2013-07-24 21:59:30 +00:00
config
gdb.ada
gdb.arch
gdb.asm
gdb.base	GDB kills itself instead of interrupting inferior	2013-07-26 11:15:45 +00:00
gdb.btrace
gdb.cell
gdb.cp
gdb.disasm
gdb.dwarf2	gdb/testsuite/gdb.dwarf2: Replace @ with % for ARM compatability.	2013-07-19 10:01:26 +00:00
gdb.fortran
gdb.gdb
gdb.go
gdb.hp
gdb.java
gdb.linespec
gdb.mi	Resue 'z' formatter from mi register display code.	2013-07-25 10:39:39 +00:00
gdb.modula2
gdb.multi
gdb.objc
gdb.opencl
gdb.opt
gdb.pascal
gdb.python
gdb.reverse
gdb.server
gdb.stabs
gdb.threads	gdb/testsuite/gdb.threads: Ensure TLS tests link against pthreads.	2013-07-18 15:49:22 +00:00
gdb.trace	gdb/	2013-07-18 23:09:49 +00:00
gdb.xml
lib	gdb/testsuite/	2013-07-18 22:38:58 +00:00
aclocal.m4
ChangeLog	GDB kills itself instead of interrupting inferior	2013-07-26 11:15:45 +00:00
configure
configure.ac
dg-extract-results.sh
Makefile.in
TODO