4
0
mirror of git://sourceware.org/git/newlib-cygwin.git synced 2025-01-19 04:49:25 +08:00
Victor L. Do Nascimento c6e601de84 libc: arm: Implement setjmp GCC backwards compatibility.
When compiling Newlib for arm targets with GCC 12.1 onward, the
passing of architecture extension information to the assembler is
automatic, making the use of .fpu and .arch_extension directives
in assembly files redundant.

With older versions of GCC, however, these directives must be
hard-coded into the `arm/setjmp.S' file to allow the assembly of
instructions concerning the storage and subsequent reloading of the
floating point registers to/from the jump buffer, respectively.

This patch conditionally adds the `.fpu vfpxd' and `.arch_extension
mve' directives based on compile-time preprocessor macros concerning
GCC version and target architectural features, such that both the
assembly and linking of setjmp.S succeeds for older versions of
Newlib.
2023-02-03 13:07:08 +00:00
2021-11-10 20:14:00 -05:00
2022-05-16 13:36:51 +01:00
2015-03-09 20:53:11 +01:00
2016-03-22 10:25:20 +01:00
2016-03-22 10:25:20 +01:00
2021-02-24 11:03:28 +01:00
2021-02-24 11:03:28 +01:00
2016-03-22 10:25:20 +01:00
2016-03-22 10:25:20 +01:00
2016-03-22 10:25:20 +01:00
2014-02-05 13:17:47 +00:00
2016-06-23 15:54:55 -04:00
2016-03-22 10:25:20 +01:00
2016-03-22 10:25:20 +01:00
2016-03-22 10:25:20 +01:00

		   README for GNU development tools

This directory contains various GNU compilers, assemblers, linkers, 
debuggers, etc., plus their support routines, definitions, and documentation.

If you are receiving this as part of a GDB release, see the file gdb/README.
If with a binutils release, see binutils/README;  if with a libg++ release,
see libg++/README, etc.  That'll give you info about this
package -- supported targets, how to use it, how to report bugs, etc.

It is now possible to automatically configure and build a variety of
tools with one command.  To build all of the tools contained herein,
run the ``configure'' script here, e.g.:

	./configure 
	make

To install them (by default in /usr/local/bin, /usr/local/lib, etc),
then do:
	make install

(If the configure script can't determine your type of computer, give it
the name as an argument, for instance ``./configure sun4''.  You can
use the script ``config.sub'' to test whether a name is recognized; if
it is, config.sub translates it to a triplet specifying CPU, vendor,
and OS.)

If you have more than one compiler on your system, it is often best to
explicitly set CC in the environment before running configure, and to
also set CC when running make.  For example (assuming sh/bash/ksh):

	CC=gcc ./configure
	make

A similar example using csh:

	setenv CC gcc
	./configure
	make

Much of the code and documentation enclosed is copyright by
the Free Software Foundation, Inc.  See the file COPYING or
COPYING.LIB in the various directories, for a description of the
GNU General Public License terms under which you can copy the files.

REPORTING BUGS: Again, see gdb/README, binutils/README, etc., for info
on where and how to report problems.
Description
No description provided
Readme 153 MiB
Languages
C 61.5%
Makefile 19.6%
C++ 10.4%
Assembly 4.9%
M4 1%
Other 2.4%