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PR29494 Trailing jump table on ARM

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out_inc_line_addr and relax_inc_line_addr are passed INT_MAX as
line_delta to flag end of section.  This filters its way down to
size_inc_line_addr and emit_inc_line_addr.  Pass line_delta on to
scale_addr_delta where it can be used to omit an unaligned opcode
error.

	PR 29494
	* dwarf2dbg.c (scale_addr_delta): Delete unnecessary forward decl.
	Add line_delta param.  Don't print error at end of section, just
	round the address down.
	(size_inc_line_addr, emit_inc_line_addr): Adjust calls.
This commit is contained in:
Alan Modra 2022-08-23 16:18:25 +09:30
parent d91ab9a73b
commit 6f6f5b0adc
1 changed files with 6 additions and 6 deletions
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12
gas/dwarf2dbg.c
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@ -1572,15 +1572,15 @@ out_set_addr (symbolS *sym)
emit_expr (&exp, sizeof_address);
}
static void scale_addr_delta (addressT *);
static void
scale_addr_delta (addressT *addr_delta)
scale_addr_delta (int line_delta, addressT *addr_delta)
{
static int printed_this = 0;
if (DWARF2_LINE_MIN_INSN_LENGTH > 1)
{
if (*addr_delta % DWARF2_LINE_MIN_INSN_LENGTH != 0 && !printed_this)
/* Don't error on non-instruction bytes at end of section. */
if (line_delta != INT_MAX
&& *addr_delta % DWARF2_LINE_MIN_INSN_LENGTH != 0 && !printed_this)
{
as_bad("unaligned opcodes detected in executable segment");
printed_this = 1;
@ -1603,7 +1603,7 @@ size_inc_line_addr (int line_delta, addressT addr_delta)
int len = 0;
/* Scale the address delta by the minimum instruction length. */
scale_addr_delta (&addr_delta);
scale_addr_delta (line_delta, &addr_delta);
/* INT_MAX is a signal that this is actually a DW_LNE_end_sequence.
We cannot use special opcodes here, since we want the end_sequence
@ -1667,7 +1667,7 @@ emit_inc_line_addr (int line_delta, addressT addr_delta, char *p, int len)
gas_assert ((offsetT) addr_delta >= 0);
/* Scale the address delta by the minimum instruction length. */
scale_addr_delta (&addr_delta);
scale_addr_delta (line_delta, &addr_delta);
/* INT_MAX is a signal that this is actually a DW_LNE_end_sequence.
We cannot use special opcodes here, since we want the end_sequence