mirror of
https://github.com/RaySollium99/picodrive.git
synced 2025-09-05 15:27:46 -04:00
configuration changes and README
This commit is contained in:
kub
parent
906a1d1820
commit
0f7a30ede3
11 changed files with 196 additions and 56 deletions
4
Makefile
4
Makefile
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@ -238,8 +238,8 @@ pico/cd/LC89510.o: CFLAGS += -fno-strict-aliasing
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pico/cd/gfx_cd.o: CFLAGS += -fno-strict-aliasing
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ifeq (1,$(use_sh2drc))
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ifneq (,$(findstring -flto,$(CFLAGS)))
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# if using the DRC, memory and sh2soc use a global register variable to avoid
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# saving and reloading the SH2 SR. However, this collides with the use of LTO.
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# if using the DRC, memory and sh2soc directly use the DRC register for SH2 SR
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# to avoid saving and reloading it. However, this collides with the use of LTO.
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pico/32x/memory.o: CFLAGS += -fno-lto
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pico/32x/sh2soc.o: CFLAGS += -fno-lto
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endif
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112
README.md
Normal file
112
README.md
Normal file
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@ -0,0 +1,112 @@
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This is my foray into dynamic recompilation using PicoDrive, a
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Megadrive / Genesis / Sega CD / Mega CD / 32X / SMS emulator.
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I added support for MIPS (mips32r1) and ARM64 (aarch64) to the recompiler, as
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well as spent much effort to optimize the code generated by the DRC.
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I also optimized SH2 memory access inside the emulator, and did some work on
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M68K/SH2 CPU synchronization to fix some problems and speed up the emulator.
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It got a bit out of hand. I ended up doing fixes and optimzations all over the
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place, mainly for 32X and CD, 32X graphics handling, and probably some more,
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see the commit history.
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### compiling
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I mainly worked with standalone PicoDrive versions as created by configure/make.
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A list of platforms for which this is possible can be obtained with
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> configure --help
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If you want to build an executable for a unixoid platform not listed in the
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platform list, just use
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> configure --platform=generic
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If DRC is available for the platform, it should be enabled automatically.
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For other platforms using a cross-compiling toolchain I used this,
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assuming $TC points to the appropriate cross compile toolchain directory:
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platform|toolchain|configure command
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--------|---------|-----------------
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gp2x,wiz,caanoo|open2x|CROSS_COMPILE=arm-open2x-linux- CFLAGS="-I$TC/gcc-4.1.1-glibc-2.3.6/arm-open2x-linux/include -fno-stack-protector -fno-common -finline-limit=42" LDFLAGS="--sysroot $TC/gcc-4.1.1-glibc-2.3.6/arm-open2x-linux -L$TC/gcc-4.1.1-glibc-2.3.6/arm-open2x-linux/lib" ./configure --platform=gp2x
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gp2x,wiz,caanoo|open2x with ubuntu arm gcc 4.7|CROSS_COMPILE=arm-linux-gnueabi- CFLAGS="-I$TC/gcc-4.1.1-glibc-2.3.6/arm-open2x-linux/include -fno-stack-protector -fno-common -finline-limit=42 -fipa-pta" LDFLAGS="-B$TC/gcc-4.1.1-glibc-2.3.6/lib/gcc/arm-open2x-linux/4.1.1 -B$TC/gcc-4.1.1-glibc-2.3.6/arm-open2x-linux/lib -L$TC/gcc-4.1.1-glibc-2.3.6/arm-open2x-linux/lib" ./configure --platform=gp2x
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opendingux|opendingux|CROSS_COMPILE=mipsel-linux- CFLAGS="-I$TC/usr/include -I$TC/usr/include/SDL -fno-stack-protector -fno-common -finline-limit=42 -fipa-pta" LDFLAGS="--sysroot $TC -L$TC/lib" ./configure --platform=opendingux
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opendingux|opendingux with ubuntu mips gcc 5.4|CROSS_COMPILE=mipsel-linux-gnu- CFLAGS="-I$TC/usr/include -I$TC/usr/include/SDL -fno-stack-protector -fno-common -finline-limit=42 -fipa-pta" LDFLAGS="-B$TC/usr/lib -B$TC/lib -Wl,-rpath-link=$TC/usr/lib -Wl,-rpath-link=$TC/lib" ./configure --platform=opendingux
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gcw0|gcw0|CROSS_COMPILE=mipsel-gcw0-linux-uclibc- CFLAGS="-I$TC/usr/mipsel-gcw0-linux-uclibc/sysroot/usr/include -I$TC/usr/mipsel-gcw0-linux-uclibc/sysroot/usr/include/SDL -fno-stack-protector -fno-common -finline-limit=42 -fipa-pta" LDFLAGS="--sysroot $TC/usr/mipsel-gcw0-linux-uclibc/sysroot" ./configure --platform=gcw0
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For gp2x, wiz, and caanoo you may need to compile libpng first, and additionally
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this patch may need to be applied to the cpu/cyclone submodule:
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> diff --git a/OpArith.cpp b/OpArith.cpp
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> index 96c7e0d..09517b8 100644
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> --- a/OpArith.cpp
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> +++ b/OpArith.cpp
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> @@ -425,7 +425,7 @@ int OpAbcd(int op)
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> ot(" add r1,r1,r0\n");
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> ot(" add r1,r1,r6\n");
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> ot(" mov r12,r1\n");
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> - ot(" addhi r12,#6 ;@ Decimal adjust units\n");
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> + ot(" addhi r12,r12,#6 ;@ Decimal adjust units\n");
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> ot(" tst r1,#0x80\n");
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> ot(" orreq r10,r10,#0x10000000 ;@ Undefined V behavior\n");
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> ot(" cmp r12,#0x9f\n");
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> @@ -452,7 +452,7 @@ int OpAbcd(int op)
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> ot(" cmp r1,r12\n");
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> ot(" orrlt r10,r10,#0x20000000 ;@ C\n");
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> ot(" cmp r1,#0xff\n");
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> - ot(" addhi r1,#0xa0\n");
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> + ot(" addhi r1,r1,#0xa0\n");
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> ot(" sub r12,r1,r12\n");
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> ot(" movs r0,r12,lsl #24\n");
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> ot(" bicmi r10,r10,#0x10000000 ;@ Undefined V behavior part II\n");
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> diff --git a/OpLogic.cpp b/OpLogic.cpp
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> index 012e35a..d40d814 100644
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> --- a/OpLogic.cpp
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> +++ b/OpLogic.cpp
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> @@ -74,12 +74,12 @@ const char *TestCond(int m68k_cc, int invert)
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> break;
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> case 0x0e: // gt
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> ot(" eor r0,r10,r10,lsl #3 ;@ gt: !Z && N == V\n");
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> - ot(" orrs r0,r10,lsl #1\n");
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> + ot(" orrs r0,r0,r10,lsl #1\n");
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> cond="pl", icond="mi";
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> break;
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> case 0x0f: // le
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> ot(" eor r0,r10,r10,lsl #3 ;@ le: Z || N != V\n");
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> - ot(" orrs r0,r10,lsl #1\n");
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> + ot(" orrs r0,r0,r10,lsl #1\n");
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> cond="mi", icond="pl";
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> break;
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> default:
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After configure, compile with
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> make opk # for opendingux and gcw0
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>
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> make # for anything else
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### helix MP3 decoder
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For 32 bit ARM platforms, there is the possibility to compile the helix MP3
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decoder into a shared library to be able to use MP3 audio files with CD games.
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The helix source files aren't supplied because of licensing issues. However, if
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you have obtained the sources, put them into the platform/common/helix
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directory, set CROSS to your cross compiler prefix (e.g. arm-linux-gnueabi-)
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and LIBGCC to your cross compiler's libgcc.a
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(e.g. /usr/lib/gcc-cross/arm-linux-gnueabi/4.7/libgcc.a), and compile with
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> make -C platform/common/helix CROSS=$CROSS LIBGCC=$LIBGCC
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Copy the resulting ${CROSS}helix_mp3.so as libhelix.so to the directory where
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the PicoDrive binary is.
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### installing
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You need to install the resulting binary onto your device manually.
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For opendingux and gcw0, copy the opk to your SD card.
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For gp2x, wiz and caanoo, the easiest way is to unpack
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[PicoDrive_191.zip](http://notaz.gp2x.de/releases/PicoDrive/PicoDrive_191.zip)
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on you SD card and replace the PicoDrive binary.
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Send bug reports, fixes etc to <derkub@gmail.com>
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Kai-Uwe Bloem
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@ -1,5 +1,5 @@
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# Automatically generated by configure
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# Configured with: './configure' '--platform=generic'
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# Configured with: './configure' '--platform=opendingux'
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CC = mipsel-linux-gcc
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CXX = mipsel-linux-g++
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AS = mipsel-linux-as
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@ -1,5 +1,5 @@
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# Automatically generated by configure
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# Configured with: './configure' '--platform=generic'
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# Configured with: './configure' '--platform=opendingux'
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CC = mipsel-linux-gnu-gcc
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CXX = mipsel-linux-gnu-g++
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AS = mipsel-linux-gnu-as
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@ -1,5 +1,5 @@
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# Automatically generated by configure
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# Configured with: './configure' '--platform=generic'
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# Configured with: './configure' '--platform=gcw0'
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CC = mipsel-gcw0-linux-uclibc-gcc
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CXX = mipsel-gcw0-linux-uclibc-g++
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AS = mipsel-gcw0-linux-uclibc-as
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@ -4,8 +4,8 @@ CC = arm-open2x-linux-gcc
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CXX = arm-open2x-linux-g++
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AS = arm-open2x-linux-as
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STRIP = arm-open2x-linux-strip
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CFLAGS += -I${HOME}/opt/open2x/gcc-4.1.1-glibc-2.3.6/arm-open2x-linux/include -I${HOME}/src/gp2x/armroot/include -D__GP2X__ -Wno-unused-result
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CFLAGS += -msoft-float -mcpu=arm920t -mtune=arm920t
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CFLAGS += -I${HOME}/opt/open2x/gcc-4.1.1-glibc-2.3.6/arm-open2x-linux/include -I${HOME}/src/gp2x/armroot/include -D__GP2X__
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CFLAGS += -mfloat-abi=soft -mcpu=arm920t -mtune=arm920t -mno-thumb-interwork -fno-stack-protector -fno-common
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CFLAGS += -finline-limit=42 -fipa-cp -fno-ipa-pure-const
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ASFLAGS += -mcpu=arm920t -mfloat-abi=soft
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LDFLAGS += --sysroot ${HOME}/opt/open2x/gcc-4.1.1-glibc-2.3.6/arm-open2x-linux -L${HOME}/opt/open2x/gcc-4.1.1-glibc-2.3.6/arm-open2x-linux/lib -L${HOME}/src/gp2x/armroot/lib -static
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@ -5,8 +5,7 @@ CXX = arm-linux-gnueabi-g++
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AS = arm-linux-gnueabi-as
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STRIP = arm-linux-gnueabi-strip
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CFLAGS += -I${HOME}/opt/open2x/gcc-4.1.1-glibc-2.3.6/arm-open2x-linux/include -I${HOME}/src/gp2x/armroot/include -D__GP2X__ -Wno-unused-result
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CFLAGS += -mabi=apcs-gnu -mfloat-abi=soft -mfpu=fpa -mcpu=arm920t -mtune=arm920t
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CFLAGS += -mno-thumb-interwork -fno-stack-protector -fno-common
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CFLAGS += -mabi=apcs-gnu -mfloat-abi=soft -mfpu=fpa -mcpu=arm920t -mtune=arm920t -mno-thumb-interwork -fno-stack-protector -fno-common
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CFLAGS += -finline-limit=42 -fipa-pta -fno-ipa-sra -fno-ipa-pure-const
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ASFLAGS += -mabi=apcs-gnu -mfloat-abi=soft -mfpu=fpa -mcpu=arm920t
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LDFLAGS += -mabi=apcs-gnu -mfpu=fpa -B${HOME}/opt/open2x/gcc-4.1.1-glibc-2.3.6/lib/gcc/arm-open2x-linux/4.1.1 -B${HOME}/opt/open2x/gcc-4.1.1-glibc-2.3.6/arm-open2x-linux/lib -L${HOME}/opt/open2x/gcc-4.1.1-glibc-2.3.6/arm-open2x-linux/usr/lib -L${HOME}/src/gp2x/armroot/lib -static
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118
configure
vendored
118
configure
vendored
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@ -22,6 +22,13 @@ compile_binary()
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$c >> config.log 2>&1
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}
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check_option()
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{
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echo 'void test(void) { }' >$TMPC
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compile_object $1 || return 1
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return 0
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}
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check_define()
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{
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$CC -E -dD $CFLAGS pico/arm_features.h | grep -q $1 || return 1
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@ -31,17 +38,18 @@ check_define()
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# setting options to "yes" or "no" will make that choice default,
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# "" means "autodetect".
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platform_list="generic pandora gp2x opendingux rpi1 rpi2"
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platform_list="generic pandora gp2x wiz caanoo opendingux gcw0 rpi1 rpi2"
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platform="generic"
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sound_driver_list="oss alsa sdl"
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sound_drivers=""
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have_armv5=""
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have_armv6=""
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have_armv7=""
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have_arm_oabi=""
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have_arm_neon=""
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have_libavcodec=""
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need_sdl="no"
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need_xlib="no"
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need_zlib="no"
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# these are for known platforms
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optimize_cortexa8="no"
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optimize_cortexa7="no"
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@ -54,7 +62,7 @@ CC="${CC-${CROSS_COMPILE}gcc}"
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CXX="${CXX-${CROSS_COMPILE}g++}"
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AS="${AS-${CROSS_COMPILE}as}"
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STRIP="${STRIP-${CROSS_COMPILE}strip}"
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test -n "$SDL_CONFIG" || SDL_CONFIG="`$CC --print-sysroot 2> /dev/null || true`/usr/bin/sdl-config"
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test -n "$SDL_CONFIG" || SDL_CONFIG="`$CC $CFLAGS $LDFLAGS --print-sysroot 2> /dev/null || true`/usr/bin/sdl-config"
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MAIN_LDLIBS="$LDLIBS -lm"
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config_mak="config.mak"
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@ -78,23 +86,27 @@ set_platform()
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;;
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generic)
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;;
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opendingux)
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opendingux | gcw0)
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sound_drivers="sdl"
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# both are really an opendingux
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platform="opendingux"
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;;
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pandora)
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sound_drivers="oss alsa"
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optimize_cortexa8="yes"
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have_arm_neon="yes"
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;;
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gp2x)
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gp2x | wiz | caanoo)
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sound_drivers="oss"
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optimize_arm920="yes"
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# compile for OABI if toolchain provides it (faster code on caanoo)
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have_arm_oabi="yes"
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# always use static linking, since caanoo doesn't have OABI libs. Moreover,
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# dynamic linking slows Wiz 1-10%, and libm on F100 isn't compatible
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LDFLAGS="$LDFLAGS -static"
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# unified binary for all of them
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CFLAGS="$CFLAGS -D__GP2X__"
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if [ "$CROSS_COMPILE" = "arm-linux-" ]; then
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# still using static, dynamic linking slows Wiz 1-10%
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# also libm on F100 is not compatible
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MAIN_LDLIBS="$MAIN_LDLIBS -static"
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fi
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platform="gp2x"
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;;
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*)
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fail "unsupported platform: $platform"
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@ -147,18 +159,11 @@ fi
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# fi
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#fi
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# basic compiler test
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cat > $TMPC <<EOF
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int main(void) { return 0; }
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EOF
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if ! compile_binary; then
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fail "compiler test failed, please check config.log"
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fi
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||||
|
||||
if [ -z "$ARCH" ]; then
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ARCH=`$CC -dumpmachine | awk -F '-' '{print $1}'`
|
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fi
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||||
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||||
# CPU/ABI stuff first, else compile test may fail
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case "$ARCH" in
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arm*)
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# ARM stuff
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||||
|
|
@ -206,26 +211,40 @@ arm*)
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have_armv5=`check_define HAVE_ARMV5 && echo yes` || true
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fi
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# automatically set mfpu and mfloat-abi if they are not set
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if [ "$have_arm_neon" = "yes" ]; then
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fpu="neon"
|
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elif [ "$have_armv6" = "yes" ]; then
|
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fpu="vfp"
|
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fi
|
||||
if [ "x$fpu" != "x" ]; then
|
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echo "$CFLAGS" | grep -q -- '-mfpu=' || CFLAGS="$CFLAGS -mfpu=$fpu"
|
||||
echo "$ASFLAGS" | grep -q -- '-mfpu=' || ASFLAGS="$ASFLAGS -mfpu=$fpu"
|
||||
floatabi_set_by_gcc=`$CC -v 2>&1 | grep -q -- --with-float= && echo yes` || true
|
||||
if [ "$floatabi_set_by_gcc" != "yes" ]; then
|
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echo "$CFLAGS" | grep -q -- '-mfloat-abi=' || CFLAGS="$CFLAGS -mfloat-abi=softfp"
|
||||
echo "$ASFLAGS" | grep -q -- '-mfloat-abi=' || ASFLAGS="$ASFLAGS -mfloat-abi=softfp"
|
||||
fi
|
||||
fi
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||||
|
||||
# must disable thumb as recompiler can't handle it
|
||||
if check_define __thumb__; then
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CFLAGS="$CFLAGS -marm"
|
||||
fi
|
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# OABI/EABI selection
|
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if [ "$have_arm_oabi" = "yes" ] && check_option -mabi=apcs-gnu; then
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echo "$CFLAGS" | grep -q -- '-mabi=' || CFLAGS="$CFLAGS -mabi=apcs-gnu"
|
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echo "$CFLAGS" | grep -q -- '-m\(no-\)*thumb-interwork' || CFLAGS="$CFLAGS -mno-thumb-interwork"
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echo "$ASFLAGS" | grep -q -- '-mabi=' || ASFLAGS="$ASFLAGS -mabi=apcs-gnu"
|
||||
fi
|
||||
|
||||
# automatically set mfpu and mfloat-abi if they are not set
|
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if [ "$have_arm_neon" = "yes" ]; then
|
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fpu="neon"
|
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abi="hard"
|
||||
elif [ "$have_armv6" = "yes" ]; then
|
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fpu="vfp"
|
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abi="softfp"
|
||||
elif check_option -mfpu=fpa; then
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fpu="fpa" # compatibility option for arm-linux-gnueabi-gcc on ubuntu
|
||||
abi="soft"
|
||||
fi
|
||||
if [ "x$fpu" != "x" ]; then
|
||||
echo "$CFLAGS" | grep -q -- '-mfpu=' || CFLAGS="$CFLAGS -mfpu=$fpu"
|
||||
echo "$ASFLAGS" | grep -q -- '-mfpu=' || ASFLAGS="$ASFLAGS -mfpu=$fpu"
|
||||
echo "$CFLAGS" | grep -q -- '-mfloat-abi=' || CFLAGS="$CFLAGS -mfloat-abi=$abi"
|
||||
echo "$ASFLAGS" | grep -q -- '-mfloat-abi=' || ASFLAGS="$ASFLAGS -mfloat-abi=$abi"
|
||||
fi
|
||||
|
||||
# add -ldl for helix support
|
||||
case "$MAIN_LDLIBS" in
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||||
*"-ldl"*) ;;
|
||||
*) MAIN_LDLIBS="-ldl $MAIN_LDLIBS" ;;
|
||||
esac
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||||
|
||||
# warn about common mistakes
|
||||
if [ "$platform" != "gp2x" -a "$have_armv5" != "yes" ]; then
|
||||
|
|
@ -251,6 +270,14 @@ rpi1 | rpi2 | generic | opendingux)
|
|||
;;
|
||||
esac
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||||
|
||||
# basic compiler test
|
||||
cat > $TMPC <<EOF
|
||||
int main(void) { return 0; }
|
||||
EOF
|
||||
if ! compile_binary; then
|
||||
fail "compiler test failed, please check config.log"
|
||||
fi
|
||||
|
||||
# header/library presence tests
|
||||
check_zlib()
|
||||
{
|
||||
|
|
@ -308,8 +335,7 @@ EOF
|
|||
compile_object "$@"
|
||||
}
|
||||
|
||||
MAIN_LDLIBS="$MAIN_LDLIBS -lz"
|
||||
check_zlib -lz || fail "please install zlib (libz-dev)"
|
||||
check_zlib -lz &&MAIN_LDLIBS="$MAIN_LDLIBS -lz" || need_zlib="yes"
|
||||
|
||||
MAIN_LDLIBS="-lpng $MAIN_LDLIBS"
|
||||
check_libpng || fail "please install libpng (libpng-dev)"
|
||||
|
|
@ -352,10 +378,7 @@ if [ "$need_sdl" = "yes" ]; then
|
|||
check_sdl `$SDL_CONFIG --libs` || fail "please install libsdl (libsdl1.2-dev)"
|
||||
fi
|
||||
|
||||
cat > $TMPC <<EOF
|
||||
void test(void *f, void *d) { fread(d, 1, 1, f); }
|
||||
EOF
|
||||
if compile_object -Wno-unused-result; then
|
||||
if check_option -Wno-unused_result; then
|
||||
CFLAGS="$CFLAGS -Wno-unused-result"
|
||||
fi
|
||||
|
||||
|
|
@ -395,15 +418,18 @@ echo "SOUND_DRIVERS = $sound_drivers" >> $config_mak
|
|||
if [ "$have_libavcodec" = "yes" ]; then
|
||||
echo "HAVE_LIBAVCODEC = 1" >> $config_mak
|
||||
fi
|
||||
if [ "$need_zlib" = "yes" ]; then
|
||||
echo "PLATFORM_ZLIB = 1" >> $config_mak
|
||||
fi
|
||||
|
||||
# GP2X toolchains are too old for UAL asm,
|
||||
# so add this here to not litter main Makefile
|
||||
if [ "$platform" = "g1p2x" ]; then
|
||||
echo >> $config_mak
|
||||
echo "%.o: %.S" >> $config_mak
|
||||
echo " $(CC) $(CFLAGS) -E -c $^ -o /tmp/$(notdir $@).s" >> $config_mak
|
||||
echo " $(AS) $(ASFLAGS) /tmp/$(notdir $@).s -o $@" >> $config_mak
|
||||
fi
|
||||
#if [ "$platform" = "gp2x" ]; then
|
||||
# echo >> $config_mak
|
||||
# echo '%.o: %.S' >> $config_mak
|
||||
# echo ' $(CC) $(CFLAGS) -E -c $^ -o /tmp/$(notdir $@).s' >> $config_mak
|
||||
# echo ' $(AS) $(ASFLAGS) /tmp/$(notdir $@).s -o $@' >> $config_mak
|
||||
#fi
|
||||
|
||||
# use pandora's skin (for now)
|
||||
test -e skin || ln -s platform/pandora/skin skin
|
||||
|
|
|
|||
|
|
@ -1,6 +1,7 @@
|
|||
/*
|
||||
* Basic macros to emit ARM instructions and some utils
|
||||
* Copyright (C) 2008,2009,2010 notaz
|
||||
* Copyright (C) 2019 kub
|
||||
*
|
||||
* This work is licensed under the terms of MAME license.
|
||||
* See COPYING file in the top-level directory.
|
||||
|
|
|
|||
|
|
@ -1,6 +1,7 @@
|
|||
/*
|
||||
* Basic macros to emit x86 instructions and some utils
|
||||
* Copyright (C) 2008,2009,2010 notaz
|
||||
* Copyright (C) 2019 kuv
|
||||
*
|
||||
* This work is licensed under the terms of MAME license.
|
||||
* See COPYING file in the top-level directory.
|
||||
|
|
|
|||
|
|
@ -4,6 +4,7 @@ CC = $(CROSS)gcc
|
|||
AS = $(CROSS)as
|
||||
AR = $(CROSS)ar
|
||||
TOOLCHAIN = $(notdir $(CROSS))
|
||||
LIBGCC ?= ${HOME}/opt/open2x/gcc-4.1.1-glibc-2.3.6/lib/gcc/arm-open2x-linux/4.1.1/libgcc.a
|
||||
|
||||
CFLAGS += -Ipub -O2 -Wall -fstrict-aliasing -ffast-math
|
||||
ifneq ($(findstring arm-,$(TOOLCHAIN)),)
|
||||
|
|
@ -34,7 +35,7 @@ real/arm/asmpoly_gcc.o: real/arm/asmpoly_gcc.s
|
|||
|
||||
$(LIB) : $(OBJS)
|
||||
$(AR) r $@ $^
|
||||
$(SHLIB) : $(OBJS) /home/build/opt/open2x/gcc-4.1.1-glibc-2.3.6/lib/gcc/arm-open2x-linux/4.1.1/libgcc.a
|
||||
$(SHLIB) : $(OBJS) $(LIBGCC)
|
||||
$(CC) -o $@ -nostdlib -shared $(CFLAGS) $^
|
||||
|
||||
clean:
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue