Hi,
I am trying to use the latest CodeSourcery G++ Lite ARM cross dev toolchain to
build native code for Android.
I looked at some messages in the archive from November about doing this but the
CodeSourcery toolchain seems to have changed since then.
I have a simple "Hello World" in c and try to build it statically for Android
with:
$ cat build.sh
#!/bin/sh
arm-none-eabi-gcc \
hello.c \
-static -o hello \
-Xlinker --script -Xlinker
~/CodeSourcery/Sourcery_G++_Lite/arm-none-eabi/lib/generic.ld
which gives me warnings like this:
$ build.sh
/home/shawn/CodeSourcery/Sourcery_G++_Lite/bin/../lib/gcc/arm-none-eabi/4.2.3/../../../../arm-none-eabi/lib/libcs3unhosted.a(unhosted-_close.o):
warning: IO function '_close' used
[...few more similar warnings...]
This produces an executable:
$ file hello
hello: ELF 32-bit LSB executable, ARM, version 1 (SYSV), statically linked, not
stripped
When I push it to the emulator and run it, it seems to hang without printing
anything.
strace shows that it is trying to use an unknown system call:
# strace ./hello
execve("./hello", ["./hello"], [/* 10 vars */]) = 0
syscall: unknown syscall trap 0x00002a9c
So, I have a couple of questions.
1. What linker script should I use for Android if not generic.ld?
2. What's the difference between hosted and unhosted?
3. Any suggestions on what I need to do to make this work?
Thanks!
Shawn
--==--==--
Shawn McMurdo
See my Low Vision Guide at
http://lowvisionguide.org
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