Revitalizing this old thread.
On Fri, Nov 20, 2015 at 9:20 AM, Ludovic Courtès <l...@gnu.org> wrote:
> "Thompson, David" <dthomps...@worcester.edu> skribis:
>
>> Not quite. The avr-gcc build only provides a single version of
>> libgcc.a, whereas Debian's avr-gcc provides a separate libgcc.a for
>> each supported AVR family (avr2, avr3, avr35, etc.) Mark thought it
>> might be the fault of the --disable-multilib configure flag, so I
>> removed it but it didn't solve anything. I'm not sure what to do now.
>> I have no idea what flag or patch could be signalling to the gcc build
>> system that it shouldn't try to compile libraries for all of the
>> various AVR models.
>
> Are you sure the removal of --disable-multilib was effective?
>
> Otherwise no specific idea. :-/ We’ll have to thoroughly study the
> (avr-)gcc doc.
With much help from Manolis, we were finally able to overcome the
multilib issue! But there's another roadblock: avr-libc doesn't
build:
avr-gcc -DHAVE_CONFIG_H -I. -I../../../../avr-libc-2.0.0/avr/lib/avr2
-I../../.. -I../../../../avr-libc-2.0.0/common
-I../../../../avr-libc-2.0.0/include -I../../../include
-I../../../../avr-libc-2.0.0/common
-I../../../../avr-libc-2.0.0/include -I../../../include -x
assembler-with-cpp -mmcu=avr2 -D__COMPILING_AVR_LIBC__ -MT abort.o
-MD -MP -MF .deps/abort.Tpo -c -o abort.o
../../../../avr-libc-2.0.0/libc/stdlib/abort.S
In file included from
/gnu/store/8m00x5x8ykmar27s9248cmhnkdb2n54a-glibc-2.22/include/features.h:389:0,
from
/gnu/store/8m00x5x8ykmar27s9248cmhnkdb2n54a-glibc-2.22/include/limits.h:25,
from ../../../../avr-libc-2.0.0/libc/stdlib/strtol.c:33:
/gnu/store/8m00x5x8ykmar27s9248cmhnkdb2n54a-glibc-2.22/include/gnu/stubs.h:7:27:
fatal error: gnu/stubs-32.h: No such file or directory
# include <gnu/stubs-32.h>
^
compilation terminated.
I don't know why it's including headers from the host system's libc.
Manolis was able to get past it by including a cross-libc built for
i686. Does this seem wrong to anyone else? Any thoughts on what
might be going on here?
We're closer than ever to having a working AVR toolchain. I hope we
can iron out these last wrinkles. Attached is the WIP code for the
toolchain.
- Dave
From 9773ef4c013f7a223ea112559f517c3ad9c10ac2 Mon Sep 17 00:00:00 2001
From: David Thompson <dthomp...@vistahigherlearning.com>
Date: Tue, 5 Apr 2016 12:12:48 -0400
Subject: [PATCH] wip AVR stuff
---
gnu/packages/avr.scm | 60 +++++++++++++++++++++++++++++++++++++--------
gnu/packages/cross-base.scm | 6 -----
2 files changed, 50 insertions(+), 16 deletions(-)
diff --git a/gnu/packages/avr.scm b/gnu/packages/avr.scm
index d59816b..7560eec 100644
--- a/gnu/packages/avr.scm
+++ b/gnu/packages/avr.scm
@@ -19,6 +19,7 @@
(define-module (gnu packages avr)
#:use-module ((guix licenses) #:prefix license:)
+ #:use-module (guix utils)
#:use-module (guix download)
#:use-module (guix packages)
#:use-module (guix build-system gnu)
@@ -27,31 +28,70 @@
#:use-module (gnu packages vim)
#:use-module (gnu packages zip))
+(define-public avr-binutils
+ (package
+ (inherit (cross-binutils "avr"))
+ (name "avr-binutils")
+ (arguments
+ '(#:configure-flags '("--target=avr"
+ "--disable-nls")))))
+
+(define-public avr-gcc
+ (let ((xgcc (cross-gcc "avr" avr-binutils)))
+ (package
+ (inherit xgcc)
+ (name "avr-gcc")
+ (arguments
+ (substitute-keyword-arguments (package-arguments xgcc)
+ ((#:phases phases)
+ `(modify-phases ,phases
+ ;; Without a working multilib build, the resulting GCC lacks
+ ;; support for nearly every AVR chip.
+ (add-after 'unpack 'fix-genmultilib
+ (lambda _
+ (substitute* "gcc/genmultilib"
+ (("#!/bin/sh") (string-append "#!" (which "sh"))))
+ #t))))
+ ((#:configure-flags flags)
+ '(list "--target=avr"
+ "--enable-languages=c,c++"
+ "--disable-nls"
+ "--disable-libssp"
+ "--with-dwarf2"))))
+ (native-search-paths
+ (list (search-path-specification
+ (variable "CROSS_CPATH")
+ (files '("avr/include")))
+ (search-path-specification
+ (variable "CROSS_LIBRARY_PATH")
+ (files '("avr/lib"))))))))
+
(define-public avr-libc
(package
(name "avr-libc")
- (version "1.8.1")
+ (version "2.0.0")
(source (origin
(method url-fetch)
- (uri (string-append
- "mirror://savannah//avr-libc/avr-libc-"
- version ".tar.bz2"))
+ (uri (string-append "mirror://savannah//avr-libc/avr-libc-"
+ version ".tar.bz2"))
(sha256
(base32
- "0sd9qkvhmk9av4g1f8dsjwc309hf1g0731bhvicnjb3b3d42l1n3"))))
+ "15svr2fx8j6prql2il2fc0ppwlv50rpmyckaxx38d3gxxv97zpdj"))))
(build-system gnu-build-system)
(arguments
- `(#:out-of-source? #t
+ '(#:out-of-source? #t
#:configure-flags '("--host=avr")))
-
- (native-inputs `(("cross-binutils" ,(cross-binutils "avr"))
- ("cross-gcc" ,xgcc-avr)))
+ (native-inputs `(("avr-binutils" ,avr-binutils)
+ ("avr-gcc" ,avr-gcc)
+ ;;("libc" ,(cross-libc "i686-linux"))
+ ))
(home-page "http://www.nongnu.org/avr-libc/";)
(synopsis "The AVR C Library")
(description
"AVR Libc is a project whose goal is to provide a high quality C library
for use with GCC on Atmel AVR microcontrollers.")
- (license (license:non-copyleft "http://www.nongnu.org/avr-libc/LICENSE.txt";))))
+ (license
+ (license:non-copyleft "http://www.nongnu.org/avr-libc/LICENSE.txt";))))
(define-public microscheme
(package
diff --git a/gnu/packages/cross-base.scm b/gnu/packages/cross-base.scm
index 8bd599c..bdf17ba 100644
--- a/gnu/packages/cross-base.scm
+++ b/gnu/packages/cross-base.scm
@@ -352,12 +352,6 @@ XBINUTILS and the cross tool chain."
(package-supported-systems xgcc)
'("mips64el-linux" "i686-linux"))))))
-(define-public xgcc-avr
- ;; AVR cross-compiler, used to build AVR-Libc.
- (let ((triplet "avr"))
- (cross-gcc triplet
- (cross-binutils triplet))))
-
(define-public xgcc-xtensa
;; Bare-bones Xtensa cross-compiler, used to build the Atheros firmware.
(cross-gcc "xtensa-elf"))
--
2.7.3
