• Iain Buclaw (14/14) Jan 10 2014 One of the binutils devs suggested this, to move D demangling
• H. S. Teoh (7/10) Jan 10 2014 [...]
• Iain Buclaw (36/43) Jan 11 2014 This is a start. Unfortunately through testing, it becomes more
• Iain Buclaw (3/10) Jan 18 2014 Initial patches have been committed !
• Andrei Alexandrescu (3/16) Jan 19 2014 This is terrific. Congratulations!

"Iain Buclaw" <ibuclaw ubuntu.com> writes:

One of the binutils devs suggested this, to move D demangling 
into libiberty, that way binutils programs (and any other program 
that uses libiberty in a similar manner) will gain D support.

For binutils, this would include D demangling support for (via 
the -C or --demangle= switch).

- nm
- addr2line
- objdump
- ld

https://github.com/ibuclaw/gdb/commit/0ba7ac2f91f45b24bcfba2d1ecedb10580fac152

I have named the specified demangle style as 'dlang', if no one 
has objects, I'll go ahead and write it up.

Regards
Iain.

"H. S. Teoh" <hsteoh quickfur.ath.cx> writes:

On Fri, Jan 10, 2014 at 05:51:17PM +0000, Iain Buclaw wrote:
 One of the binutils devs suggested this, to move D demangling into
 libiberty, that way binutils programs (and any other program that
 uses libiberty in a similar manner) will gain D support.

[...]

Yes! Please do!! This will go a long way in helping D get stronger tool
support, at least on GNU platforms.


T

-- 
Freedom: (n.) Man's self-given right to be enslaved by his own depravity.

Iain Buclaw <ibuclaw gdcproject.org> writes:

On 10 January 2014 20:05, H. S. Teoh <hsteoh quickfur.ath.cx> wrote:
 On Fri, Jan 10, 2014 at 05:51:17PM +0000, Iain Buclaw wrote:
 One of the binutils devs suggested this, to move D demangling into
 libiberty, that way binutils programs (and any other program that
 uses libiberty in a similar manner) will gain D support.

 [...]

 Yes! Please do!! This will go a long way in helping D get stronger tool
 support, at least on GNU platforms.


This is a start.  Unfortunately through testing, it becomes more
apparently that the ability to demangle templates is absolute key here
to the success of this.

Without demangling:
$ ./ld/ld-new test.o 2>&1 | grep -v "__T"

./ld/ld-new: warning: cannot find entry symbol _start; defaulting to
0000000000400120
test.o: In function `main':
/opt/usr/include/d/4.9.0/__entrypoint.di:59: undefined reference to
`_d_run_main'
test.o: In function `_Dmain':
/home/iain/src/gdc/gdb/objdir/test.d:5: undefined reference to
`_D3std4math3tanFNaNbNeeZe'
test.o: In function `test._D4test9__modinitFZv':
/home/iain/src/gdc/gdb/objdir/test.d:5: undefined reference to `_Dmodule_ref'
/home/iain/src/gdc/gdb/objdir/test.d:5: undefined reference to `_Dmodule_ref'
test.o:(.data+0x10): undefined reference to `_D3std4math12__ModuleInfoZ'


With demangling:
$ ./ld/ld-new test.o --demangle=dlang 2>&1 | grep -v "__T"

./ld/ld-new: warning: cannot find entry symbol _start; defaulting to
0000000000400120
test.o: In function `main':
/opt/usr/include/d/4.9.0/__entrypoint.di:59: undefined reference to
`_d_run_main'
test.o: In function `D main':
/home/iain/src/gdc/gdb/objdir/test.d:5: undefined reference to
`std.math.tan(real)'
test.o: In function `test._D4test9__modinitFZv':
/home/iain/src/gdc/gdb/objdir/test.d:5: undefined reference to `_Dmodule_ref'
/home/iain/src/gdc/gdb/objdir/test.d:5: undefined reference to `_Dmodule_ref'
test.o:(.data+0x10): undefined reference to `std.math.moduleinfo$'


Anyway, here's the guts of the change.

https://github.com/ibuclaw/gdb/commit/45c505dbc0eecb9fa7842dcbdf46894e450c9cbc


Regards
Iain.

Iain Buclaw <ibuclaw gdcproject.org> writes:

On 10 January 2014 20:05, H. S. Teoh <hsteoh quickfur.ath.cx> wrote:
 On Fri, Jan 10, 2014 at 05:51:17PM +0000, Iain Buclaw wrote:
 One of the binutils devs suggested this, to move D demangling into
 libiberty, that way binutils programs (and any other program that
 uses libiberty in a similar manner) will gain D support.

 [...]

 Yes! Please do!! This will go a long way in helping D get stronger tool
 support, at least on GNU platforms.

Initial patches have been committed !

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=log;h=50367cd2ada722ddf5bede594d8ed7631fcde5ab

Andrei Alexandrescu <SeeWebsiteForEmail erdani.org> writes:

On 1/18/14 10:34 AM, Iain Buclaw wrote:
 On 10 January 2014 20:05, H. S. Teoh <hsteoh quickfur.ath.cx> wrote:
 On Fri, Jan 10, 2014 at 05:51:17PM +0000, Iain Buclaw wrote:
 One of the binutils devs suggested this, to move D demangling into
 libiberty, that way binutils programs (and any other program that
 uses libiberty in a similar manner) will gain D support.

 [...]

 Yes! Please do!! This will go a long way in helping D get stronger tool
 support, at least on GNU platforms.

 Initial patches have been committed !

 https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=log;h=50367cd2ada722ddf5bede594d8ed7631fcde5ab

This is terrific. Congratulations!

Andrei