[PATCH] libgloss/arm: Remove abort.

[Shaun Jackman]

On 6/1/06, Jeff Johnston <jjohnstn@redhat.com> wrote:
...
> We have talked about this before.  Gcc has to change over to use
> libgloss by default.  Adding libgloss into the specs file would do it in
> conjunction with making non-newlib-supplied-syscalls the default from
> then on.  Adding libgloss back into libc.a is not going to happen.
>
> Yes, keeping the two in sync is a pain, but for the most part, this
> isn't being done.  In this particular case, libc/sys/arm is broken so it
> must be fixed.

Hello Jeff,

Here's a diff against the arm-elf specs file that I've been using for
some time now along with --disable-newlib-supplied-syscalls. It
defaults to using libnosys, which conspicuously displays `xxx is not
implemented' messages when linking, and allows overriding the libgloss
selection in a one-stanza specs file that simply overrides
%(libgloss).

I haven't found which file in the gcc/config hierarchy defines
LIB_SPEC for arm-elf, but I did stumble on gcc/config/libgloss.h,
whose existance is interesting.

Cheers,
Shaun

--- specs.orig  2006-06-27 09:07:35.000000000 -0600
+++ specs       2006-06-27 09:08:48.000000000 -0600
@@ -50,8 +50,11 @@
 *link:
  %{mbig-endian:-EB} %{mlittle-endian:-EL} -X

+*libgloss:
+-lnosys
+
 *lib:
-%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}
+%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}} %(libgloss)

  *mfwrap:
  %{static: %{fmudflap|fmudflapth:  --wrap=malloc --wrap=free
--wrap=calloc --wrap=realloc --wrap=mmap --wrap=munmap --wrap=alloca}
%{fmudflapth: --wrap=pthread_create}} %{fmudflap|fmudflapth:
--wrap=main}