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Re: Does m68klinux-tdep.c handle uclinux too
- From: Vladimir Prus <vladimir at codesourcery dot com>
- To: gdb at sources dot redhat dot com
- Date: Thu, 10 Dec 2009 14:13:13 +0300
- Subject: Re: Does m68klinux-tdep.c handle uclinux too
- References: <200912101252.29827.vladimir@codesourcery.com>
On Thursday 10 December 2009 12:52:29 Vladimir Prus wrote:
>
> Hi,
>
> looking at m68klinux-tdep.c, I see this:
>
> if (target_is_uclinux == -1)
> {
> /* Determine whether we are running on a uClinux or normal GNU/Linux
> target so we can use the correct sigcontext layouts. */
> CORE_ADDR dummy;
>
> target_is_uclinux
> = (target_auxv_search (¤t_target, AT_NULL, &dummy) > 0
> && target_auxv_search (¤t_target, AT_PAGESZ, &dummy) == 0);
> }
>
> However, looking at configure.tgt, I see:
>
> m68*-*-aout* | m68*-*-coff* | m68*-*-elf* | m68*-*-rtems* | m68*-*-uclinux* | \
> fido-*-elf*)
> # Target: Motorola m68k embedded (e.g. bug monitors)
> gdb_target_obs="m68k-tdep.o monitor.o dbug-rom.o dsrec.o"
> ;;
>
>
> So, it seems that m68klinux-tdep.c is not even compiled for uclinux target.
> Then, is something here that needs fixing?
FWIW, below is a local patch that we have. Does it seem reasonable?
- Volodya
--- a/gdb/configure.tgt
+++ b/gdb/configure.tgt
@@ -280,12 +280,12 @@ m68hc11*-*-*|m6811*-*-*)
gdb_sim=../sim/m68hc11/libsim.a
;;
-m68*-*-aout* | m68*-*-coff* | m68*-*-elf* | m68*-*-rtems* | m68*-*-uclinux* | \
+m68*-*-aout* | m68*-*-coff* | m68*-*-elf* | m68*-*-rtems* | \
fido-*-elf*)
# Target: Motorola m68k embedded (e.g. bug monitors)
gdb_target_obs="m68k-tdep.o monitor.o dbug-rom.o dsrec.o"
;;
-m68*-*-linux*)
+m68*-*-linux* | m68*-*-uclinux*)
# Target: Motorola m68k with a.out and ELF
gdb_target_obs="m68k-tdep.o m68klinux-tdep.o solib.o solib-svr4.o \
glibc-tdep.o symfile-mem.o"
@@ -616,6 +616,7 @@ esac
case "${targ}" in
*-*-freebsd*) gdb_osabi=GDB_OSABI_FREEBSD_ELF ;;
*-*-linux*) gdb_osabi=GDB_OSABI_LINUX ;;
+*-*-uclinux*) gdb_osabi=GDB_OSABI_LINUX ;;
*-*-nto*) gdb_osabi=GDB_OSABI_QNXNTO ;;
m68*-*-openbsd* | m88*-*-openbsd* | vax-*-openbsd*) ;;
*-*-openbsd*) gdb_osabi=GDB_OSABI_OPENBSD_ELF ;;