OpenE2K/binutils-gdb
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improve comment about Sun acc

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This commit is contained in:
Jim Kingdon 1993-07-12 15:58:42 +00:00
parent 5d4ef2968b
commit 4f47020526
1 changed files with 42 additions and 24 deletions
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66
gdb/dbxread.c
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@ -1524,10 +1524,15 @@ process_one_symbol (type, desc, valu, name, section_offsets, objfile)
case N_FUN:
case N_FNAME:
#if 0
/* It seems that the Sun ANSI C compiler (acc) replaces N_FUN with N_GSYM and
N_STSYM with a type code of f or F. Can't enable this until we get some
stuff straightened out with psymtabs. FIXME. */
/* The Sun acc compiler, under SunOS4, puts out functions with N_GSYM
or N_STSYM. The problem is that the address of the symbol is no
good (for N_GSYM it doesn't even attept an address; for N_STSYM
it puts out an address but then it gets relocated relative to the
data segment, not the text segment), so we would have to keep track of
where we would use the address (e.g. to close off the block for
the previous function), and patch it later (we already do this for
some symbols, e.g. 'G', but in that case we just need to patch the
symbol, not other data structures). */
case N_GSYM:
case N_STSYM:
#endif /* 0 */
@ -1844,6 +1849,24 @@ process_one_symbol (type, desc, valu, name, section_offsets, objfile)
valu += ANOFFSET (section_offsets, SECT_OFF_TEXT);
goto define_a_symbol;
/* The following symbol types we don't know how to process. Handle
them in a "default" way, but complain to people who care. */
default:
case N_CATCH: /* Exception handler catcher */
case N_EHDECL: /* Exception handler name */
case N_PC: /* Global symbol in Pascal */
case N_M2C: /* Modula-2 compilation unit */
/* N_MOD2: overlaps with N_EHDECL */
case N_SCOPE: /* Modula-2 scope information */
case N_ECOML: /* End common (local name) */
case N_NBTEXT: /* Gould Non-Base-Register symbols??? */
case N_NBDATA:
case N_NBBSS:
case N_NBSTS:
case N_NBLCS:
complain (&unknown_symtype_complaint, local_hex_string(type));
/* FALLTHROUGH */
/* The following symbol types don't need the address field relocated,
since it is either unused, or is absolute. */
define_a_symbol:
@ -1857,7 +1880,21 @@ process_one_symbol (type, desc, valu, name, section_offsets, objfile)
case N_PSYM: /* Parameter variable */
case N_LENG: /* Length of preceding symbol type */
if (name)
define_symbol (valu, name, desc, type, objfile);
{
struct symbol *sym;
sym = define_symbol (valu, name, desc, type, objfile);
if (sym != NULL && SYMBOL_CLASS (sym) == LOC_BLOCK)
{
/* We're not prepared to deal with this case; we won't
patch up the SYMBOL_BLOCK_VALUE in finish_block.
Setting the class to LOC_STATIC isn't particularly useful,
but at least we won't dump core. */
static struct complaint msg = {
"function encountered with unexpected n_type", 0, 0};
complain (&msg);
SYMBOL_CLASS (sym) = LOC_STATIC;
}
}
break;
/* We use N_OPT to carry the gcc2_compiled flag. Sun uses it
@ -1889,25 +1926,6 @@ process_one_symbol (type, desc, valu, name, section_offsets, objfile)
case N_ENDM: /* Solaris 2: End of module */
case N_MAIN: /* Name of main routine. */
break;
/* The following symbol types we don't know how to process. Handle
them in a "default" way, but complain to people who care. */
default:
case N_CATCH: /* Exception handler catcher */
case N_EHDECL: /* Exception handler name */
case N_PC: /* Global symbol in Pascal */
case N_M2C: /* Modula-2 compilation unit */
/* N_MOD2: overlaps with N_EHDECL */
case N_SCOPE: /* Modula-2 scope information */
case N_ECOML: /* End common (local name) */
case N_NBTEXT: /* Gould Non-Base-Register symbols??? */
case N_NBDATA:
case N_NBBSS:
case N_NBSTS:
case N_NBLCS:
complain (&unknown_symtype_complaint, local_hex_string(type));
if (name)
define_symbol (valu, name, desc, type, objfile);
}
previous_stab_code = type;