gas: make .lcomm to accept an optional aligmnet in eBPF targets

Tested in a x86_64 host.

gas/ChangeLog:

2019-07-19  Jose E. Marchesi  <jose.marchesi@oracle.com>

	* config/tc-bpf.c (pe_lcomm_internal): Adapted from tc-i386.c.
	(pe_lcomm): Likewise.
	(md_pseudo_table): Use pe_lcomm to implement .lcomm.
This commit is contained in:
Jose E. Marchesi 2019-07-19 15:35:02 +02:00
parent ccbdd22fb9
commit 1802aae844
2 changed files with 49 additions and 1 deletions

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@ -1,3 +1,9 @@
2019-07-19 Jose E. Marchesi <jose.marchesi@oracle.com>
* config/tc-bpf.c (pe_lcomm_internal): Adapted from tc-i386.c.
(pe_lcomm): Likewise.
(md_pseudo_table): Use pe_lcomm to implement .lcomm.
2019-07-19 Richard Sandiford <richard.sandiford@arm.com>
* doc/c-aarch64.texi: Remame the +bitperm extension to +sve2-bitperm.

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@ -35,16 +35,58 @@ const char line_separator_chars[] = "`";
const char EXP_CHARS[] = "eE";
const char FLT_CHARS[] = "fFdD";
/* Like s_lcomm_internal in gas/read.c but the alignment string
is allowed to be optional. */
static symbolS *
pe_lcomm_internal (int needs_align, symbolS *symbolP, addressT size)
{
addressT align = 0;
SKIP_WHITESPACE ();
if (needs_align
&& *input_line_pointer == ',')
{
align = parse_align (needs_align - 1);
if (align == (addressT) -1)
return NULL;
}
else
{
if (size >= 8)
align = 3;
else if (size >= 4)
align = 2;
else if (size >= 2)
align = 1;
else
align = 0;
}
bss_alloc (symbolP, size, align);
return symbolP;
}
static void
pe_lcomm (int needs_align)
{
s_comm_internal (needs_align * 2, pe_lcomm_internal);
}
/* The target specific pseudo-ops which we support. */
const pseudo_typeS md_pseudo_table[] =
{
{ "half", cons, 2 },
{ "word", cons, 4 },
{ "dword", cons, 8 },
{ "lcomm", s_lcomm, 1 },
{ "lcomm", pe_lcomm, 1 },
{ NULL, NULL, 0 }
};
/* ISA handling. */
static CGEN_BITSET *bpf_isa;