diff options
Diffstat (limited to 'gdb/printcmd.c')
| -rw-r--r-- | gdb/printcmd.c | 43 |
1 files changed, 37 insertions, 6 deletions
diff --git a/gdb/printcmd.c b/gdb/printcmd.c index 269ec4b..dc9803e 100644 --- a/gdb/printcmd.c +++ b/gdb/printcmd.c @@ -1233,7 +1233,9 @@ print_frame_args (func, fi, num, stream) register int last_regparm = 0; register struct symbol *lastsym, *sym, *nextsym; register value val; - CORE_ADDR highest_offset = 0; + /* Offset of stack argument that is at the highest offset. + -1 if we haven't come to a stack argument yet. */ + CORE_ADDR highest_offset = (CORE_ADDR) -1; register CORE_ADDR addr = FRAME_ARGS_ADDRESS (fi); if (func) @@ -1273,10 +1275,12 @@ print_frame_args (func, fi, num, stream) current_offset = (((current_offset + sizeof (int) - 1) / sizeof (int)) * sizeof (int)); - - if ((current_offset - + (arg_size - sizeof (int) + 3) / (sizeof (int))) - > highest_offset) + + /* If this is the highest offset seen yet, set highest_offset. */ + if (highest_offset == (CORE_ADDR)-1 + || ((current_offset + + (arg_size - sizeof (int) + 3) / (sizeof (int))) + > highest_offset)) highest_offset = current_offset; } @@ -1284,6 +1288,32 @@ print_frame_args (func, fi, num, stream) fprintf_filtered (stream, ", "); fputs_filtered (SYMBOL_NAME (sym), stream); fputs_filtered ("=", stream); + +/* Nonzero if a LOC_ARG which is a struct is useless. */ +#if !defined (STRUCT_ARG_SYM_GARBAGE) +#define STRUCT_ARG_SYM_GARBAGE(gcc_p) 0 +#endif + + if (STRUCT_ARG_SYM_GARBAGE (b->gcc_compile_flag) + && TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_STRUCT + && SYMBOL_CLASS (sym) == LOC_ARG) + { + /* Try looking up that name. SunOS4 puts out a usable + symbol as a local variable (in addition to the one + for the arg). */ + struct symbol *sym2 = + lookup_symbol (SYMBOL_NAME (sym), b, VAR_NAMESPACE, 0); + + if (sym2 != NULL) + val = value_of_variable (sym2); + else + { + fputs_filtered ("?", stream); + first = 0; + continue; + } + } + value_print (val, stream, 0, Val_no_prettyprint); first = 0; } @@ -1292,7 +1322,8 @@ print_frame_args (func, fi, num, stream) enough about the stack to find them. */ if (num != -1) { - if (i && num * sizeof (int) + FRAME_ARGS_SKIP > highest_offset) + if (highest_offset != (CORE_ADDR) -1 + && num * sizeof (int) + FRAME_ARGS_SKIP > highest_offset) print_frame_nameless_args (addr, highest_offset + sizeof (int), num * sizeof (int) + FRAME_ARGS_SKIP, |