perf-eh_elf/Documentation/jit-interface.txt

perf supports a simple JIT interface to resolve symbols for dynamic code generated
by a JIT.

The JIT has to write a /tmp/perf-%d.map  (%d = pid of process) file

This is a text file.

Each line has the following format, fields separated with spaces:

START SIZE symbolname

START and SIZE are hex numbers without 0x.
symbolname is the rest of the line, so it could contain special characters.

The ownership of the file has to match the process.
Merge tag 'afs-fixes-20180514' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs Pull AFS fixes from David Howells: "Here's a set of patches that fix a number of bugs in the in-kernel AFS client, including: - Fix directory locking to not use individual page locks for directory reading/scanning but rather to use a semaphore on the afs_vnode struct as the directory contents must be read in a single blob and data from different reads must not be mixed as the entire contents may be shuffled about between reads. - Fix address list parsing to handle port specifiers correctly. - Only give up callback records on a server if we actually talked to that server (we might not be able to access a server). - Fix some callback handling bugs, including refcounting, whole-volume callbacks and when callbacks actually get broken in response to a CB.CallBack op. - Fix some server/address rotation bugs, including giving up if we can't probe a server; giving up if a server says it doesn't have a volume, but there are more servers to try. - Fix the decoding of fetched statuses to be OpenAFS compatible. - Fix the handling of server lookups in Cache Manager ops (such as CB.InitCallBackState3) to use a UUID if possible and to handle no server being found. - Fix a bug in server lookup where not all addresses are compared. - Fix the non-encryption of calls that prevents some servers from being accessed (this also requires an AF_RXRPC patch that has already gone in through the net tree). There's also a patch that adds tracepoints to log Cache Manager ops that don't find a matching server, either by UUID or by address" * tag 'afs-fixes-20180514' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs: afs: Fix the non-encryption of calls afs: Fix CB.CallBack handling afs: Fix whole-volume callback handling afs: Fix afs_find_server search loop afs: Fix the handling of an unfound server in CM operations afs: Add a tracepoint to record callbacks from unlisted servers afs: Fix the handling of CB.InitCallBackState3 to find the server by UUID afs: Fix VNOVOL handling in address rotation afs: Fix AFSFetchStatus decoder to provide OpenAFS compatibility afs: Fix server rotation's handling of fileserver probe failure afs: Fix refcounting in callback registration afs: Fix giving up callbacks on server destruction afs: Fix address list parsing afs: Fix directory page locking 2018-05-15 19:48:36 +02:00			`perf supports a simple JIT interface to resolve symbols for dynamic code generated`
			`by a JIT.`

			`The JIT has to write a /tmp/perf-%d.map (%d = pid of process) file`

			`This is a text file.`

			`Each line has the following format, fields separated with spaces:`

			`START SIZE symbolname`

			`START and SIZE are hex numbers without 0x.`
			`symbolname is the rest of the line, so it could contain special characters.`

			`The ownership of the file has to match the process.`