32-bit gcore on amd64

[Daniel Jacobowitz]

On Thu, Feb 19, 2004 at 06:12:22PM -0500, Andrew Cagney wrote:
> This is more questions than answers.  I'm trying to figure out how GDB 
> should generate 32-bit core files on amd64 (i.e., get gmake check 
> 'RUNTESTFLAGS=--target_board=unix/-m32 gcore.exp' to pass).  The problem 
> is, everything I look at feels wrong.
> 
> Here's the first backtrace:
> 
> #0  amd64_collect_native_gregset (regcache=0x808410, gregs=0x7fbfffead0,
>     regnum=-1) at /home/cygnus/cagney/GDB/src/gdb/amd64-nat.c:124
> #1  0x0000000000450e16 in fill_gregset (gregsetp=0x808410, 
> regnum=-1073747248)
>     at /home/cygnus/cagney/GDB/src/gdb/x86-64-linux-nat.c:126
> #2  0x000000000045803d in linux_do_thread_registers (obfd=0x87fc90, ptid=
>       {pid = 10494, lwp = 10494, tid = 0}, note_data=0x8b0960 "\005",
>     note_size=0x7fbfffed8c) at 
> /home/cygnus/cagney/GDB/src/gdb/linux-proc.c:180
> 
> This function is asking fill_gregset to populate an amd64 gregset_t.  I 
> think it should be asking for the 32-bit gregset_t to be filled in.

Does the same thing apply to mips64-linux/-mabi=32?  Normally we make a
point of only dealing with the registers' "real" size.

-- 
Daniel Jacobowitz
MontaVista Software                         Debian GNU/Linux Developer