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ID Category Severity Reproducibility Date Submitted Last Update
0001043 [buildroot] New Features feature N/A 09-21-06 06:37 07-08-07 04:40
Reporter belandor View Status public  
Assigned To buildroot
Priority normal Resolution open  
Status assigned   Product Version
Summary 0001043: ada support for buildroot
Description I have included the option to add --enable-languages=ada when compiling gcc.

The problem is though, that gcc-4.1.1 needs a patch to compile - namely the files
s-wchcon.adb and s-wchcon.ads need to be replaced with the SVN versions.
gcc-SVN should compile fine though.
I haven't tried compiling Ada support for older gcc versions.

I got this to compile targetting arm-linux-uclibcgnueabi. However, building the target compiler supporting ada did not work (Configure chokes over the wrong gmp.h version).

Any comments?
Additional Information that's my output of svn diff

Index: gcc-uclibc-3.x.mk
===================================================================
--- gcc-uclibc-3.x.mk (revision 16170)
+++ gcc-uclibc-3.x.mk (working copy)
@@ -55,6 +55,10 @@
 TARGET_LANGUAGES:=$(TARGET_LANGUAGES),fortran
 endif

+ifeq ($(BR2_INSTALL_ADA),y)
+TARGET_LANGUAGES:=$(TARGET_LANGUAGES),ada
+endif
+
 #############################################################
 #
 # build the first pass gcc compiler
Index: Config.in
===================================================================
--- Config.in (revision 16170)
+++ Config.in (working copy)
@@ -126,3 +126,10 @@
        default n
        help
            Build/install Objective-C compiler and runtime?
+
+config BR2_INSTALL_ADA
+ bool "Build/install Ada compiler and runtime"
+ default n
+ help
+ set --enable-languages=ada
+ HINT: needs an Ada Compiler installed on your build system
Attached Files

- Relationships

- Notes
(0001646)
belandor
09-26-06 18:26

 the issue with the failing target compiler is due to a bug in gcc-4.1.1:
when running, the cross-compiler emits a warning like this:

<built-in>:0: warning: 'const' attribute directive ignored
<built-in>:0: warning: 'nothrow' attribute directive ignored

When configure for gcc-4.1.1-target tests for ada capabilities (line 2145), it checks for creation of conftest.o and makes sure, that the call did not issue any output. - Well, as output is issued the test fails, even though the compiler is actually functional.

The gmp.h warning is misleading - it's actually the last error message produced in config.log, but unrelated to ada language support...

This is fixed in the gcc-4.1.2 release branch. - So full Ada support should probably wait for that release.
 
(0001671)
bernhardf
09-30-06 14:02

 I'm thinking about adding fortran support, so i'll need gmp and mpfr too, fwiw.
Stubs for the latter two are already in place but not yet activated since they are incomplete at the moment. Does ada too require gmp?
 
(0001680)
belandor
10-01-06 04:49

 Ada doesn't need gmp, no. As I said, cross-compiler can be built and works (more or less)
 
(0002576)
bernhardf
07-08-07 04:40

 Several months ago fortran support was added. Can you try adding ada for 4.2.0 (and perhaps 4.1.2/4.1.3) both natively and as a cross-compiler and check if both do work properly? Run "make -k check" on the target and attach all .sum files here, please.
 

- Issue History
Date Modified Username Field Change
09-21-06 06:37 belandor New Issue
09-21-06 06:37 belandor Status new => assigned
09-21-06 06:37 belandor Assigned To  => uClibc
09-21-06 22:05 belandor Issue Monitored: belandor
09-26-06 18:26 belandor Note Added: 0001646
09-30-06 14:02 bernhardf Note Added: 0001671
10-01-06 04:49 belandor Note Added: 0001680
02-12-07 05:34 vapier Assigned To uClibc => buildroot
07-08-07 04:40 bernhardf Note Added: 0002576

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