[Libre-soc-sim] Progress

[Peter Hsu]

Hello Luke, All,

riscv64-...-gdb seems to be working now.  Must compile programs with 
-fno-omit-frame-pointer to make backtrace work:

peterhsu at DELL-LAPTOP:~/TRY$ riscv64-unknown-linux-gnu-gdb cc1
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Reading symbols from cc1...
(gdb) target remote localhost:1234
Remote debugging using localhost:1234
_start () at ../sysdeps/riscv/start.S:50
50        call  .Lload_gp
(gdb) b fprintf
Breakpoint 1 at 0x166710: file fprintf.c, line 31.
(gdb) c
Continuing.

Breakpoint 1, __fprintf (stream=0x55a0e3c2dba0, format=0x1bc4a0 "\t%s\t 
\"%s\"\n") at fprintf.c:31
31      va_start (arg, format);
(gdb) s
32      done = __vfprintf_internal (stream, format, arg, 0);
(gdb) s
__vfprintf_internal (s=0x55a0e3c2dba0, format=0x1bc4a0 "\t%s\t 
\"%s\"\n", ap=ap at entry=0x5fffe5f0, mode_flags=mode_flags at entry=0)
     at vfprintf-internal.c:1277
1277      int save_errno = errno;
(gdb) s
1285      ORIENT;
(gdb) s
1289      ARGCHECK (s, format);
(gdb) c
Continuing.

Breakpoint 1, __fprintf (stream=0x55a0e3c2dba0, format=0x1c0b98 "%s\n") 
at fprintf.c:31
31      va_start (arg, format);
(gdb) bt
#0  __fprintf (stream=0x55a0e3c2dba0, format=0x1c0b98 "%s\n") at 
fprintf.c:31
#1  0x0000000000084e08 in data_section () at varasm.c:206
#2  0x0000000000159a98 in output_file_start (file=0x55a0e3c2dba0, 
f_options=0x208fb0 <f_options>, f_len=39,
     W_options=0x209870 <W_options>, W_len=8) at m88k.c:1615
#3  0x0000000000033c5c in compile_file (name=0x5ffffbf5 "cccp.i") at 
toplev.c:2156
#4  0x0000000000036d16 in main (argc=2, argv=0x5fffea38) at toplev.c:3921
(gdb)