Oops!! My mistake!!!
FramebufferNativeWindow seems like that doesn't have thread loop.
And, in my the other android system, second surfaceflinger is started
before creating FramebufferNativeWindow object.
I use GDB to trace. But multi thread trace using GDB is difficult...
^^;;
Do you have any idea to trace multi thread?
And does Anyone know "what is second surfaceflinger?".
On 8월30일, 오후2시43분, Jae-Hong Bae <jaehong....@gmail.com> wrote:
> I found that the secondsurfaceflingerstart at
> DisplayHardware::init().
>
> void DisplayHardware::init(uint32_t dpy)
> {
> mNativeWindow = new FramebufferNativeWindow();
> ...
>
> }
>
> The secondsurfaceflingerthread is FramebufferNativeWindow.
> That manages onlytwobuffers (the front and back buffer).
>
> Thank all for attentions.
>
> On 8월25일, 오후5시38분, Jae-Hong Bae <jaehong....@gmail.com> wrote:
>
>
>
> > Hi, all
> > I am inspecting a process/thread in theandroid-platform(FROYO).
> > I found weird thing that there istwosurfaceflingerthread.
> > I know the first SurfaceFinger start point at booting time but can't
> > find the secondSurfaceFlingerstart point.
> > My question is
> > (1) Where is the secondSurfaceFlingerstarted ?
> > (2) Whatdoesthe secondSurfaceFlingerdo ? (What is the
> > 2ndSurfaceFlinger'srole?)Doesanyone know this?
> > I attach my system log below.
> > Thanks for your attention.
>
> > ----------------------------------------------------------------------------------------------------
> > $ ps
> > ...
> > system 1379 1266 252592 37996 ffffffff 00000000 S system_server
> > ...
> > $ cat /proc/1379/task/*/stat
> > 1379 (system_server) S 1266 1266 0 0 -1 4194624 1949 0 96 0 41 9 0 0
> > 20 0 59 0 1723 258654208 9575 4294967295 32768 38168 0 0 0 0 4612 4096
> > 1073777896 4294967295 0 0 17 0 0 0 0 0 0
> > 1380 (HeapWorker) S 1266 1266 0 0 -1 4194368 462 0 0 0 70 4 0 0 20 0
> > 59 0 1723 258654208 9575 4294967295 32768 38168 0 0 0 0 4612 4096
> > 1073777896 4294967295 0 0 -1 0 0 0 0 0 0
> > 1381 (Signal Catcher) S 1266 1266 0 0 -1 4194368 4 0 0 0 0 0 0 0 20 0
> > 59 0 1723 258654208 9575 4294967295 32768 38168 0 0 0 0 4096 4096
> > 1073777896 4294967295 0 0 -1 0 0 0 0 0 0
> > 1382 (JDWP) S 1266 1266 0 0 -1 4194368 166 0 1 0 0 0 0 0 20 0 59 0
> > 1724 258654208 9575 4294967295 32768 38168 0 0 0 0 4612 4096
> > 1073777896 4294967295 0 0 -1 0 0 0 0 0 0
> > 1383 (Compiler) S 1266 1266 0 0 -1 4194368 59 0 9 0 79 16 0 0 20 0 59
> > 0 1724 258654208 9575 4294967295 32768 38168 0 0 0 0 4612 4096
> > 1073777896 4294967295 0 0 -1 0 0 0 0 0 0
> > 1384 (Binder Thread #1) S 1266 1266 0 0 -1 4194624 262 0 2 0 14 9 0 0
> > 20 0 59 0 1725 258654208 9575 4294967295 32768 38168 0 0 0 0 4612 4096
> > 1073777896 4294967295 0 0 -1 0 0 0 0 0 0
> > 1385 (Binder Thread #2) S 1266 1266 0 0 -1 4194624 2990 0 1 0 17 21 0
> > 0 20 0 59 0 1726 258654208 9575 4294967295 32768 38168 0 0 0 0 4612
> > 4096 1073777896 4294967295 0 0 -1 0 0 0 0 0 0
> > 1386 (SurfaceFlinger) S 1266 1266 0 0 -1 4194624 401 0 154 0 358 657 0
> > 0 12 -8 59 0 1743 258654208 9575 4294967295 32768 38168 0 0 0 0
> > 1073748484 4096 1073777896 4294967295 0 0 -1 0 0 0 0 0 0
> > 1390 (DisplayEventThread) S 1266 1266 0 0 -1 4194624 0 0 0 0 0 0 0 0
> > 12 -8 59 0 1751 258654208 9575 4294967295 32768 38168 0 0 0 0 4612
> > 4096 1073777896 4294967295 0 0 -1 0 0 0 0 0 0
> > 1391 (SurfaceFlinger) S 1266 1266 0 0 -1 4194368 0 0 0 0 8 68 0 0 12
> > -8 59 0 1752 258654208 9575 4294967295 32768 38168 0 0 0 0 1073748484
> > 4096 1073777896 4294967295 0 0 -1 0 0 0 0 0 0
> > 1399 (er.ServerThread) S 1266 1266 0 0 -1 4194624 13087 0 2407 0 818
> > 140 0 0 18 -2 59 0 1774 258654208 9575 4294967295 32768 38168 0 0 0 0
> > 4612 4096 1073777896 4294967295 0 0 -1 0 0 0 0 0 0
> > 1403 (ActivityManager) S 1266 1266 0 0 -1 4194624 1307 0 24 0 39 5 0 0
> > 18 -2 59 0 1785 258654208 9575 4294967295 32768 38168 0 0 0 0 4612
> > 4096 1073777896 4294967295 0 0 -1 0 0 0 0 0 0
> > 1406 (ProcessStats) S 1266 1266 0 0 -1 4194368 52 0 0 0 56 94 0 0 20 0
> > 59 0 1830 258654208 9575 4294967295 32768 38168 0 0 0 0 4612 4096
> > 1073777896 4294967295 0 0 -1 0 0 0 0 0 0
> > ...
> > ----------------------------------------------------------------------------------------------------
> > system_server process pid is 1379. system_server process
> > hastwosurfaceflingerthread(tid:1386, tid:1391)- 원본 텍스트 숨기기 -
>
> - 원본 텍스트 보기 -
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