tech128's optimized sqlite3 for android

README.md

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+sqlite3
+=======
+
+tech128's optimized sqlite3 for android
+
+Thanks to the open source community for helping me with code tidbits and ideas here and there.
+
+Thanks to jorjin @ gitorious.
+
+Thanks to the crystax team and anyone else I may have missed.
+
+Was going all over the place to try and figure out how to get sqlite3 how I wanted it.

a2_set_errno.c

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+ /* <!-- copyright */
+ /*
+  * aria2 - The high speed download utility
+  *
+  * Copyright (C) 2013 Tatsuhiro Tsujikawa
+  *
+  * This program is free software; you can redistribute it and/or modify
+  * it under the terms of the GNU General Public License as published by
+  * the Free Software Foundation; either version 2 of the License, or
+  * (at your option) any later version.
+  *
+  * This program is distributed in the hope that it will be useful,
+  * but WITHOUT ANY WARRANTY; without even the implied warranty of
+  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  * GNU General Public License for more details.
+  *
+  * You should have received a copy of the GNU General Public License
+  * along with this program; if not, write to the Free Software
+  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+  *
+  * In addition, as a special exception, the copyright holders give
+  * permission to link the code of portions of this program with the
+  * OpenSSL library under certain conditions as described in each
+  * individual source file, and distribute linked combinations
+  * including the two.
+  * You must obey the GNU General Public License in all respects
+  * for all of the code used other than OpenSSL.  If you modify
+  * file(s) with this exception, you may extend this exception to your
+  * version of the file(s), but you are not obligated to do so.  If you
+  * do not wish to do so, delete this exception statement from your
+  * version.  If you delete this exception statement from all source
+  * files in the program, then also delete it here.
+  */
+ /* copyright --> */
+ #include <errno.h>
+
+ /*
+  * Since Android ndk r9, __set_errno is deprecated. It is now defined
+  * as inline function in errno.h. The syscall assembly calls
+  * __set_errno, but since libc.so does not export it, the link
+  * fails. To workaround this, replace all occurrences of __set_errno
+  * with a2_set_errno and define it here.
+  */
+ int a2_set_errno(int n)
+ {
+   errno = n;
+   return -1;
+ }

arm-ftruncate64.S

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+/* autogenerated by gensyscalls.py */
+#include <asm/unistd.h>
+#include <linux/err.h>
+#include <machine/asm.h>
+
+ENTRY(ftruncate64)
+    mov     ip, r7
+    ldr     r7, =__NR_ftruncate64
+    swi     #0
+    mov     r7, ip
+    cmn     r0, #(MAX_ERRNO + 1)
+    bxls    lr
+    neg     r0, r0
+    b       a2_set_errno
+END(ftruncate64)

arm-pread64.S

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+/* autogenerated by gensyscalls.py */
+#include <asm/unistd.h>
+#include <linux/err.h>
+#include <machine/asm.h>
+
+ENTRY(pread64)
+mov ip, sp
+.save {r4, r5, r6, r7}
+stmfd sp!, {r4, r5, r6, r7}
+ldmfd ip, {r4, r5, r6}
+ldr r7, =__NR_pread64
+swi #0
+ldmfd sp!, {r4, r5, r6, r7}
+cmn r0, #(MAX_ERRNO + 1)
+bxls lr
+neg r0, r0
+b a2_set_errno
+END(pread64)

arm-pwrite64.S

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+/* autogenerated by gensyscalls.py */
+#include <asm/unistd.h>
+#include <linux/err.h>
+#include <machine/asm.h>
+
+ENTRY(pwrite64)
+mov ip, sp
+.save {r4, r5, r6, r7}
+stmfd sp!, {r4, r5, r6, r7}
+ldmfd ip, {r4, r5, r6}
+ldr r7, =__NR_pwrite64
+swi #0
+ldmfd sp!, {r4, r5, r6, r7}
+cmn r0, #(MAX_ERRNO + 1)
+bxls lr
+neg r0, r0
+b a2_set_errno
+END(pwrite64)

compile.sh

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+BASEDIR=/home/user/android_stuff
+export STRIP="/home/user/android-ndk-r10e/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86/bin/arm-linux-androideabi-strip"
+case $1 in
+[1-9])
+export CC="/home/user/android-ndk-r10e/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86/bin/arm-linux-androideabi-gcc --sysroot=/home/user/android-ndk-r10e/platforms/android-$1/arch-arm/"
+export CXX="/home/user/android-ndk-r10e/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86/bin/arm-linux-androideabi-g++ --sysroot=/home/user/android-ndk-r10e/platforms/android-$1/arch-arm/ -I/home/user/android-ndk-r10e/sources/cxx-stl/gnu-libstdc++/4.9/include -I/home/user/android-ndk-r10e/sources/cxx-stl/gnu-libstdc++/4.9/libs/armeabi/include/ -I /home/user/android-ndk-r10e/sources/cxx-stl/stlport/stlport/ "
+#export LD="/home/user/android-ndk-r10e/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86/bin/arm-linux-androideabi-ld --sysroot=/home/user/android-ndk-r10e/platforms/android-$1/arch-arm/"
+;;
+[1-9][1-9])
+export CC="/home/user/android-ndk-r10e/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86/bin/arm-linux-androideabi-gcc --sysroot=/home/user/android-ndk-r10e/platforms/android-$1/arch-arm/"
+export CXX="/home/user/android-ndk-r10e/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86/bin/arm-linux-androideabi-g++ --sysroot=/home/user/android-ndk-r10e/platforms/android-$1/arch-arm/ -I/home/user/android-ndk-r10e/sources/cxx-stl/gnu-libstdc++/4.9/include -I/home/user/android-ndk-r10e/sources/cxx-stl/gnu-libstdc++/4.9/libs/armeabi/include/ -I /home/user/android-ndk-r10e/sources/cxx-stl/stlport/stlport/ "
+#export LD="/home/user/android-ndk-r10e/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86/bin/arm-linux-androideabi-ld --sysroot=/home/user/android-ndk-r10e/platforms/android-$1/arch-arm/"
+;;
+*)
+echo YOU MUST RUN THIS SCRIPT WITH THE SOURCE COMMAND\!\!
+echo $"Usage: source $0 android-abi-level arm-arch{6|6-nofpu|7|7-pie}"
+esac
+case $2 in
+6)
+export ARCH_FLAGS="-marm -march=armv6 -mfloat-abi=softfp -L$BASEDIR/armv6_lib -I$BASEDIR/armv6_inc"
+export ARCH_LINK="-march=armv6 -flto --gc-sections -L$BASEDIR/armv6_lib -I$BASEDIR/armv6_inc"
+;;
+"6-nofpu")
+export ARCH_FLAGS="-marm -march=armv6 -mfloat-abi=soft -L$BASEDIR/armv6-nofpu_lib -I$BASEDIR/armv6-nofpu_inc"
+export ARCH_LINK="-march=armv6 -flto --gc-sections -L$BASEDIR/armv6-nofpu_lib -I$BASEDIR/armv6-nofpu_inc"
+;;
+7)
+export ARCH_FLAGS="-marm -march=armv7-a -mfpu=neon -mfloat-abi=hard -mhard-float -D_NDK_MATH_NO_SOFTFP=1 -ftree-vectorize -mvectorize-with-neon-quad -ftree-vectorizer-verbose=2 -funsafe-math-optimizations -Wl,--gc-sections,-lm_hard,--no-warn-mismatch -L$BASEDIR/armv7_lib -I$BASEDIR/armv7_inc"
+export ARCH_LINK="-march=armv7-a -flto --gc-sections -lm_hard --no-warn-mismatch -L$BASEDIR/armv7_lib -I$BASEDIR/armv7_inc"
+;;
+"7-pie")
+export ARCH_FLAGS="-marm -march=armv7-a -pie -mfpu=neon -mfloat-abi=hard -mhard-float -D_NDK_MATH_NO_SOFTFP=1 -ftree-vectorize -mvectorize-with-neon-quad -ftree-vectorizer-verbose=2 -funsafe-math-optimizations -Wl,--gc-sections,-lm_hard,--no-warn-mismatch -L$BASEDIR/armv7_lib -I$BASEDIR/armv7_inc"
+export ARCH_LINK="-march=armv7-a -flto --gc-sections -lm_hard --no-warn-mismatch -L$BASEDIR/armv7-pie_lib -I$BASEDIR/armv7-pie_inc"
+;;
+*)
+echo YOU MUST RUN THIS SCRIPT WITH THE SOURCE COMMAND\!\!
+echo $"Usage: source $0 android-abi-level arm-arch{6|6-nofpu|7|7-pie}"
+;;
+esac
+export CPPFLAGS=" ${ARCH_FLAGS} -pipe -fPIE -fomit-frame-pointer -flto -O3 -Wl,--gc-sections -ffunction-sections"
+export CXXFLAGS=" ${ARCH_FLAGS} -pipe -fPIE -fomit-frame-pointer -flto -O3 -Wl,--gc-sections -ffunction-sections"
+export CFLAGS=" ${ARCH_FLAGS} -pipe -fPIE -fomit-frame-pointer -flto -O3 -Wl,--gc-sections -ffunction-sections"
+export LDFLAGS=" ${ARCH_LINK}"

go.sh

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+$CC $CFLAGS shell.c sqlite3.c arm-ftruncate64.S arm-pread64.S arm-pwrite64.S a2_set_errno.c -DUSE_PREAD64 -DSQLITE_ENABLE_FTS3_BACKWARDS