src/gnu/usr.bin/gdb, branch stable/9

MFC 288371:

2015-11-05T21:22:23Z

When XSAVE support was added on amd64, the FPU save area was moved out of 'struct pcb' and into a variable-sized region after the structure. The kgdb code currently only reads the pcb. It does not read in the FPU save area but instead passes stack garbage as the FPU's saved context. Fixing this would mean determining the proper size of the area and fetching it. However, this state is not saved for running CPUs in stoppcbs[], so the callback would also have to know to ignore those pcbs. Instead, just remove the call since it is of limited usefulness. It results in kgdb reporting the state of the FPU/SIMD registers in userland, not their current values in the kernel. In particular, it does not report the correct state for any code in the kernel which does use the FPU and would report incorrect values in that case.

MFC r244236,r244408,r244915,r247054,r251512:

2013-07-05T19:35:51Z

Add a new knob WITH_DEBUG_FILES to control the building of standalone debug files for userland programs and libraries. The "-g" debug flag is automatically applied when WITH_DEBUG_FILES is set. The debug files are named ${prog}.debug and ${shlib}.debug for consistency with other systems and documentation. In addition they are installed under /usr/lib/debug, to simplify the process of installing them if needed after a crash. Users of bsd.{prog,lib}.mk outside of the base system place the standalone debug files in a .debug subdirectory. GDB automatically searches both of these directories for standalone debug files.

Revert changes that ocassionally got into r241192.

2012-10-04T09:53:59Z

Pointy hat to: me

MFC: r241002

2012-10-04T09:49:53Z

Fix pseudo checksum calculation. This fixes ipfilter w/ network controllers that implement only partial rx csum offloading. PR: 106438 Obtained from: upstream

Merge r229521 from head to stable/9:

2012-07-09T08:27:04Z

Add missing -w to kgdb(1)'s usage(). Sponsored by: Adara Networks, Inc. Approved by: re (kib)

MFC r235211:

2012-05-18T00:00:46Z

General mdoc(7) and typo fixes. PR: 167696

MFC r230427:

2012-02-21T20:59:49Z

Adopt to new layout of struct pcb.

Do not include if we're building a cross-debugger, ptrace isn't

2011-08-26T15:24:54Z

used anyway, and it breaks the build, since sys/ptrace.h now includes Approved by: re

Walk the zombproc list as well as the allproc list when enumerating threads

2011-08-19T21:28:40Z

and processes in a kernel image. This allows examination of threads that have exited or are in the late stages of exiting. Tested by: avg Approved by: re (kib) MFC after: 1 week

Compile fbsd-threads.c. Amongst others this is necessary for a working

2011-08-06T17:53:45Z

kgdb(1). Reviewed by: marcel Approved by: re (kib) MFC after: 1 week