cpp/openttd-patchpack/source Changeset - r3084:a5e85a4a5104

Changeset - r3084:a5e85a4a5104

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bjarni - 18 years ago 2006-02-25 18:11:11
bjarni@openttd.org

(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

3 files changed with 42 insertions and 0 deletions:

Makefile

os/macosx/G5_detector.c

os/macosx/Makefile.setup

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Makefile

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@@ @@ -345,6 +345,9 @@ endif @@
 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

os/macosx/G5_detector.c

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@@ new file 100644 @@
 /* $Id:$ */
 #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");
+}

os/macosx/Makefile.setup

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@@ @@ -16,6 +16,16 @@ ifndef FAT_BINARY @@
 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)

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