Talk:PSL1GHT: Difference between revisions
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= PSL1GHT speed issues = | |||
* PSL1GHT (any version of it) has tremendous performance issues when it comes to homebrew and applications developed with it | |||
* A regular dump_flash gitbrew version takes 2 hours and 15 minutes to dump 239MB of the NAND | |||
* When the same application is compiled under oficial sony sdk it takes 5 minutes to do the exact same | |||
* Even more interestingly, compiling ONLY the objects from the psl1ght app and then linking them with the oficial sdk (using ppu-lv2-gcc), when the app is run it takes the same ammount of time as oficial sdk. | |||
* RPCS3 ran some simple homebrew at the time i tested this. ThatOtherDev's projects ALL ran in 5 or LESS fps, while scooger, an OFICIAL SDK compiled homebrew, ran at 60 FPS. | |||
* If anyone is willing to find out what the issue is, it'd increase the interest in developing apps under psl1ght |
Latest revision as of 17:04, 7 December 2017
I had trouble compiling the toolchain in cygwin, the issue was with binutils failing with this error:
checking for int_least32_t... ../../libiberty/pex-unix.c: In function ‘pex_unix_exec_child’: ../../libiberty/pex-unix.c:549:2: warning: implicit declaration of function ‘spawnvpe’ ../../libiberty/pex-unix.c:549:18: error: ‘_P_NOWAITO’ undeclared (first use in this function) ../../libiberty/pex-unix.c:549:18: note: each undeclared identifier is reported only once for each function it appears in ../../libiberty/pex-unix.c:551:2: warning: implicit declaration of function ‘spawnve’ Makefile:887: recipe for target `pex-unix.o' failed make[2]: *** [pex-unix.o] Error 1 make[2]: Leaving directory `/home/TroyGerrie/ps3toolchain/build/binutils-2.21.1/build-ppu/libiberty' Makefile:9242: recipe for target `all-libiberty' failed make[1]: *** [all-libiberty] Error 2 make[1]: *** Waiting for unfinished jobs....
I managed to fix this with a dirty HACK on pex-unix.c to include the correct value, in retrospect I should have just defined it. You can replace patches/binutils-2.22-PS3.patch with this (you might wan't to clean the unpacked files out of your build/ dir first):
diff -burN --exclude=.git binutils-2.22/ld/emultempl/spuelf.em binutils-2.22-PS3/ld/emultempl/spuelf.em --- binutils-2.22/ld/emultempl/spuelf.em 2011-01-13 08:06:22.000000000 -0500 +++ binutils-2.22-PS3/ld/emultempl/spuelf.em 2012-01-25 18:30:17.000000000 -0500 @@ -397,7 +397,11 @@ argv[my_argc++] = "-T"; argv[my_argc++] = auto_overlay_file; argv[my_argc] = 0; +#if defined(_WIN32) + execvp (argv[0], (const char* const*) argv); +#else execvp (argv[0], (char *const *) argv); +#endif perror (argv[0]); _exit (127); } diff -burN --exclude=.git binutils-2.22/libiberty/pex-unix.c binutils-2.22-PS3/libiberty/pex-unix.c --- binutils-2.22/libiberty/pex-unix.c 2011-01-04 10:05:58.000000000 +1300 +++ binutils-2.22-PS3/libiberty/pex-unix.c 2012-02-10 22:07:45.443501700 +1300 @@ -546,9 +546,9 @@ typedef const char * const *cc_cp; if (flags & PEX_SEARCH) - pid = spawnvpe (_P_NOWAITO, executable, (cc_cp)argv, (cc_cp)env); + pid = spawnvpe (3, executable, (cc_cp)argv, (cc_cp)env); else - pid = spawnve (_P_NOWAITO, executable, (cc_cp)argv, (cc_cp)env); + pid = spawnve (3, executable, (cc_cp)argv, (cc_cp)env); if (pid > 0) break;
PSL1GHT speed issues[edit source]
- PSL1GHT (any version of it) has tremendous performance issues when it comes to homebrew and applications developed with it
- A regular dump_flash gitbrew version takes 2 hours and 15 minutes to dump 239MB of the NAND
- When the same application is compiled under oficial sony sdk it takes 5 minutes to do the exact same
- Even more interestingly, compiling ONLY the objects from the psl1ght app and then linking them with the oficial sdk (using ppu-lv2-gcc), when the app is run it takes the same ammount of time as oficial sdk.
- RPCS3 ran some simple homebrew at the time i tested this. ThatOtherDev's projects ALL ran in 5 or LESS fps, while scooger, an OFICIAL SDK compiled homebrew, ran at 60 FPS.
- If anyone is willing to find out what the issue is, it'd increase the interest in developing apps under psl1ght