diff options
| author | Georg-Johann Lay <avr@gjlay.de> | 2012-09-05 08:47:50 +0000 |
|---|---|---|
| committer | Georg-Johann Lay <gjl@gcc.gnu.org> | 2012-09-05 08:47:50 +0000 |
| commit | b588ae3074e258f5c736034c212e7499a565746f (patch) | |
| tree | 9f336c5bfcd0b1ffef11bb616b7591f8823a8ed2 /gcc/config/avr | |
| parent | 4efbb06f6737868e79b3791af3462fb58da91013 (diff) | |
| download | gcc-b588ae3074e258f5c736034c212e7499a565746f.zip gcc-b588ae3074e258f5c736034c212e7499a565746f.tar.gz gcc-b588ae3074e258f5c736034c212e7499a565746f.tar.bz2 | |
re PR target/54461 ([avr] add configure option for better AVR-Libc integration)
PR target/54461
* configure.ac (noconfigdirs,target=avr-*-*): Add target-newlib,
target-libgloss if not configured --with-avrlibc=no.
* configure: Regenerate.
libgcc/
PR target/54461
* config.host (tmake_file,host=avr-*-*): Add avr/t-avrlibc if
not configured --with-avrlibc=no.
* config/avr/t-avrlibc: New file.
* Makefile.in (FPBIT_FUNCS): filter-out LIB2FUNCS_EXCLUDE.
(DPBIT_FUNCS): Ditto.
(TPBIT_FUNCS): Ditto.
gcc/
PR target/54461
* config.gcc (tm_file,target=avr-*-*): Add avr/avrlibc.h if
not configured --with-avrlibc=no.
(tm_defines,target=avr-*-*): Add WITH_AVRLIBC if not configured
--with-avrlibc=no.
* config/avr/avrlibc.h: New file.
* config/avr/avr-c.c: Build-in define __WITH_AVRLIBC__ if
not configured --with-avrlibc=no.
* doc/invoke.texi (AVR Built-in Macros): Document __WITH_AVRLIBC__
From-SVN: r190967
Diffstat (limited to 'gcc/config/avr')
| -rw-r--r-- | gcc/config/avr/avr-c.c | 4 | ||||
| -rw-r--r-- | gcc/config/avr/avrlibc.h | 31 |
2 files changed, 35 insertions, 0 deletions
diff --git a/gcc/config/avr/avr-c.c b/gcc/config/avr/avr-c.c index d689fa0..6eb0eba 100644 --- a/gcc/config/avr/avr-c.c +++ b/gcc/config/avr/avr-c.c @@ -148,6 +148,10 @@ avr_cpu_cpp_builtins (struct cpp_reader *pfile) cpp_define_formatted (pfile, "__AVR_SFR_OFFSET__=0x%x", avr_current_arch->sfr_offset); +#ifdef WITH_AVRLIBC + cpp_define (pfile, "__WITH_AVRLIBC__"); +#endif /* WITH_AVRLIBC */ + /* Define builtin macros so that the user can easily query if or if not non-generic address spaces (and which) are supported. This is only supported for C. For C++, a language extension is needed diff --git a/gcc/config/avr/avrlibc.h b/gcc/config/avr/avrlibc.h new file mode 100644 index 0000000..b1c1a80 --- /dev/null +++ b/gcc/config/avr/avrlibc.h @@ -0,0 +1,31 @@ +/* Definitions of target machine for the GNU compiler collection + for Atmel AVR micro controller if configured for AVR-Libc. + Copyright (C) 2012 + Free Software Foundation, Inc. + Contributed by Georg-Johann Lay (avr@gjlay.de) + +This file is part of GCC. + +GCC 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 3, or (at your option) +any later version. + +GCC 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 GCC; see the file COPYING3. If not see +<http://www.gnu.org/licenses/>. */ + +/* AVR-Libc implements functions from libgcc.a in libm.a, see PR54461. */ + +#undef LIBGCC_SPEC +#define LIBGCC_SPEC \ + "%{!mmcu=at90s1*:%{!mmcu=attiny11:%{!mmcu=attiny12:%{!mmcu=attiny15:%{!mmcu=attiny28: -lgcc -lm }}}}}" + +#undef LINK_GCC_C_SEQUENCE_SPEC +#define LINK_GCC_C_SEQUENCE_SPEC \ + "--start-group %G %L --end-group" |