Mercurial > hg > openttd
changeset 3084:373267f4bfce draft
(svn r3673) -Codechange: [OSX] changed the makefile to autodetect if it compiles on G5 and then adds flags to optimise for G5
This will not interfere with crosscompiling or universal binaries
| author | bjarni <bjarni@openttd.org> |
|---|---|
| date | Sat, 25 Feb 2006 18:11:11 +0000 |
| parents | 1c099a345438 |
| children | 4c39f1af740b |
| files | Makefile os/macosx/G5_detector.c os/macosx/Makefile.setup |
| diffstat | 3 files changed, 42 insertions(+), 0 deletions(-) [+] |
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--- a/Makefile +++ b/Makefile @@ -345,6 +345,9 @@ ifdef OSX # these compilerflags makes the app run as fast as possible without making the app unstable. It works on G3 or newer BASECFLAGS += -O3 -funroll-loops -fsched-interblock -falign-loops=16 -falign-jumps=16 -falign-functions=16 -falign-jumps-max-skip=15 -falign-loops-max-skip=15 -mdynamic-no-pic +ifdef IS_G5 +BASECFLAGS += -mtune=970 -mcpu=970 -mpowerpc-gpopt +endif else ifdef MORPHOS BASECFLAGS += -I/gg/os-include -O2 -noixemul -fstrict-aliasing -fexpensive-optimizations
new file mode 100644 --- /dev/null +++ b/os/macosx/G5_detector.c @@ -0,0 +1,29 @@ +/* $Id:$ */ + +#include <mach/mach.h> +#include <mach/mach_host.h> +#include <mach/host_info.h> +#include <mach/machine.h> +#include <stdio.h> + + +#ifndef CPU_SUBTYPE_POWERPC_970 +#define CPU_SUBTYPE_POWERPC_970 ((cpu_subtype_t) 100) +#endif + +// this function is a lightly modified version of some code from Apple's developer homepage to detect G5 CPUs at runtime +main() +{ + host_basic_info_data_t hostInfo; + mach_msg_type_number_t infoCount; + boolean_t is_G5; + + infoCount = HOST_BASIC_INFO_COUNT; + host_info(mach_host_self(), HOST_BASIC_INFO, + (host_info_t)&hostInfo, &infoCount); + + is_G5 = ((hostInfo.cpu_type == CPU_TYPE_POWERPC) && + (hostInfo.cpu_subtype == CPU_SUBTYPE_POWERPC_970)); + if (is_G5) + printf("1"); +}
--- a/os/macosx/Makefile.setup +++ b/os/macosx/Makefile.setup @@ -16,6 +16,16 @@ endif endif +ifndef FAT_BINARY +ifndef JAGUAR +ifeq ($(shell uname), Darwin) +# it's a hardware mac, not crosscompiling +$(Q)$(CC_HOST) os/macosx/G5_detector.c -o os/macosx/G5_detector +IS_G5:=$(shell os/macosx/G5_detector) +endif +endif +endif + ifdef FAT_BINARY ifndef STATIC $(warning Compiling a universal binary, that is not static. Adding static flag)