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Commit 0f379445 by David Malcolm Committed by David Malcolm
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Make jit/notes.txt better reflect current status quo 

gcc/jit/ChangeLog:
	* notes.txt: Show the beginning and ending of
	recording::context::compile vs playback::context::compile.  Show
	the creation and unlinking of the tempdir.  Show toplev::finalize.
	Move "RELEASE MUTEX" to the correct location.  Show
	gcc_jit_result_release, and indicate where the
	dlopen/dlsym/dlclose occur.

From-SVN: r218488
parent b09e592e
Showing with 43 additions and 4 deletions
gcc/jit/ChangeLog
2014-12-08 David Malcolm <dmalcolm@redhat.com>
* notes.txt: Show the beginning and ending of
recording::context::compile vs playback::context::compile. Show
the creation and unlinking of the tempdir. Show toplev::finalize.
Move "RELEASE MUTEX" to the correct location. Show
gcc_jit_result_release, and indicate where the
dlopen/dlsym/dlclose occur.
2014-12-01 David Malcolm <dmalcolm@redhat.com>
* docs/examples/tut02-square.c (main): Release the context
......
gcc/jit/notes.txt
......@@ -18,9 +18,13 @@ Client Code . Generated . libgccjit.so
│ . . . .
V . . gcc_jit_context_compile .
──────────────────────────> . .
. . │ start of recording::context::compile ()
. . │ . .
. . │ ACQUIRE MUTEX .
. . │ . .
. . │ start of playback::context::compile ()
. . │ (create tempdir) .
. . │ . .
. . V───────────────────────> toplev::main (for now)
. . . . │
. . . . (various code)
......@@ -65,13 +69,33 @@ Client Code . Generated . libgccjit.so
. . . . (the middle─end and backend)
. . . . ↓
. . <───────────────────────────── end of toplev::main
. . │ RELEASE MUTEX .
. . │ . .
. . │ Convert assembler to DSO
. . V───────────────────────> toplev::finalize
. . . . │ (purge internal state)
. . <──────────────────────── end of toplev::finalize
. . │ . .
. . │ Convert assembler to DSO ("fake.so")
. . │ . .
. . │ Load DSO (dlopen "fake.so")
. . │ . .
. . │ Load DSO .
. . │ end of playback::context::compile ()
. . │ . .
. . │ playback::context dtor
. . ──> . .
. . │ Cleanup tempdir .
. . │ ("fake.so" is unlinked from the
. . │ filesystem at this point)
. . <── . .
. . │ . .
. . │ RELEASE MUTEX .
. . │ . .
. . │ end of recording::context::compile ()
<─────────────────────────── . .
│ . . . .
V . . gcc_jit_result_get_code .
──────────────────────────> . .
. . │ dlsym () within loaded DSO
<─────────────────────────── . .
Get (void*). . . .
│ . . . .
│ Call it . . . .
......@@ -80,5 +104,11 @@ Client Code . Generated . libgccjit.so
. │ . . .
<─────────────── . . .
│ . . . .
etc│ . . . .
│ . . . .
V . . gcc_jit_result_release .
──────────────────────────> . .
. . │ dlclose () the loaded DSO
. . │ (code becomes uncallable)
<─────────────────────────── . .
│ . . . .
etc
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