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Re: Cross compiling Newlib for ARM in Cygwin
- From: Yaakov Selkowitz <yselkowitz at cygwin dot com>
- To: newlib at sourceware dot org
- Date: Tue, 22 Mar 2016 10:47:39 -0500
- Subject: Re: Cross compiling Newlib for ARM in Cygwin
- Authentication-results: sourceware.org; auth=none
- References: <A45B1767F1002449A37508C2CC6003D72DD106 at DEFTHW99EJ1MSX dot ww902 dot siemens dot net>
On 2016-03-22 09:33, Schwarz, Konrad wrote:
pardon my obtuseness: I'd like to build newlib for the arm-none-eabi target on a Cygwin host.
I have a arm-none-eabi GCC and Binutils which was built for native Windows.
Cygwin != native Windows. If you want to use a Cygwin shell for
cross-compiling, then you'll want Cygwin-hosted cross-compilers.
I have downloaded newlib-cygwin in directory ./newlib-cygwin . I create a directory ./newlib-cygwin-arm, and
$ export CC=arm-none-eabi-gcc
$ cd newlib-cygwin-arm
$ ../newlib-cygwin/configure
That is not how cross-compiling works. Cross-compiler toolchains
(binutils/gcc/gdb/newlib) are built by configuring with the desired
--target.
FWIW, I have built a Cygwin-hosted toolchain for most of the bare-metal
targets. If there is general interest in these, I could make those
available.
--
Yaakov