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(obj_elf_previous): New function.

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(previous_section, previous_subsection): New vars.
(obj_elf_section): Save current place in case DWARF code wants us
to pop back to it.  Handle unquoted section name as well as quoted
section name.  Don't crash on invalid strings.
(obj_pseudo_table): Handle new pseudos "previous", "2byte", and "4byte".
This commit is contained in:
Ken Raeburn 1993-07-19 19:49:34 +00:00
parent ce2ad89aca
commit 7c05f0ec40
1 changed files with 46 additions and 2 deletions
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48
gas/config/obj-elf.c
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@ -31,10 +31,12 @@ static void obj_elf_section PARAMS ((int));
static void obj_elf_size PARAMS ((void));
static void obj_elf_type PARAMS ((void));
static void obj_elf_ident PARAMS ((void));
static void obj_elf_previous PARAMS ((void));
const pseudo_typeS obj_pseudo_table[] =
{
{"ident", obj_elf_ident, 0},
{"previous", obj_elf_previous, 0},
{"section", obj_elf_section, 0},
{"size", obj_elf_size, 0},
{"type", obj_elf_type, 0},
@ -49,6 +51,10 @@ const pseudo_typeS obj_pseudo_table[] =
/* This is used on Solaris 2.x on SPARC, but not supported yet. */
{"xstabs", obj_elf_xstab, 's'},
/* These are used for dwarf. */
{"2byte", cons, 2},
{"4byte", cons, 4},
{NULL} /* end sentinel */
};
@ -74,6 +80,9 @@ elf_file_symbol (s)
}
}
static segT previous_section;
static int previous_subsection;
static void
obj_elf_section (xxx)
int xxx;
@ -88,9 +97,26 @@ obj_elf_section (xxx)
flagword flags = SEC_READONLY | SEC_ALLOC | SEC_RELOC;
/* Initialize this with the default flags to be used if none are
specified. */
flagword default_flags = SEC_ALLOC | SEC_RELOC;
flagword default_flags = 0;
string = demand_copy_C_string (&xxx);
SKIP_WHITESPACE ();
if (*input_line_pointer == '"')
string = demand_copy_C_string (&xxx);
else
{
char *p = input_line_pointer;
char c;
while (0 == strchr ("\n\t,; ", *p))
p++;
c = *p;
*p = 0;
string = xmalloc (p - input_line_pointer + 1);
strcpy (string, input_line_pointer);
*p = c;
input_line_pointer = p;
}
if (!strcmp (string, ".rodata"))
default_flags = SEC_ALLOC | SEC_READONLY | SEC_RELOC;
SKIP_WHITESPACE ();
if (*input_line_pointer != ',')
flags = default_flags;
@ -137,6 +163,10 @@ obj_elf_section (xxx)
}
demand_empty_rest_of_line ();
/* If the C string wasn't valid, `string' could be null. */
if (!string)
return;
sec = bfd_get_section_by_name (stdoutput, string);
if (sec == 0)
{
@ -144,9 +174,23 @@ obj_elf_section (xxx)
bfd_set_section_flags (stdoutput, sec, flags);
sec->output_section = sec;
}
previous_section = now_seg;
previous_subsection = now_subseg;
subseg_set (sec, 0);
}
static void
obj_elf_previous ()
{
if (previous_section == 0)
{
as_bad (".previous without corresponding .section; ignored");
return;
}
subseg_set (previous_section, previous_subsection);
previous_section = 0;
}
int
obj_elf_write_symbol_p (sym)
symbolS *sym;