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dwarf2out.c (output_loc_list): Don't throw away 64K+ location descriptions for -gdwarf-5 and emit them as...

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* dwarf2out.c (output_loc_list): Don't throw away 64K+ location
	descriptions for -gdwarf-5 and emit them as uleb128 instead of
	2-byte data.

From-SVN: r244069
This commit is contained in:
Jakub Jelinek 2017-01-04 21:03:59 +01:00 • committed by Jakub Jelinek
parent 598bd6878a
commit fb85f9d05f
2 changed files with 14 additions and 5 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2017-01-04 Jakub Jelinek <jakub@redhat.com>
* dwarf2out.c (output_loc_list): Don't throw away 64K+ location
descriptions for -gdwarf-5 and emit them as uleb128 instead of
2-byte data.
2017-01-04 Kelvin Nilsen <kelvin@gcc.gnu.org>
PR target/78056

13
gcc/dwarf2out.c
View file

@ -9586,7 +9586,7 @@ output_loc_list (dw_loc_list_ref list_head)
perhaps put it into DW_TAG_dwarf_procedure and refer to that
in the expression, but >= 64KB expressions for a single value
in a single range are unlikely very useful. */
if (size > 0xffff)
if (dwarf_version < 5 && size > 0xffff)
continue;
if (dwarf_version >= 5)
{
@ -9638,8 +9638,6 @@ output_loc_list (dw_loc_list_ref list_head)
if (strcmp (curr2->begin, curr2->end) == 0
&& !curr2->force)
continue;
if ((unsigned long) size_of_locs (curr2->expr) > 0xffff)
continue;
break;
}
if (curr2 == NULL || curr->section != curr2->section)
@ -9740,8 +9738,13 @@ output_loc_list (dw_loc_list_ref list_head)
}
/* Output the block length for this list of location operations. */
gcc_assert (size <= 0xffff);
dw2_asm_output_data (2, size, "%s", "Location expression size");
if (dwarf_version >= 5)
dw2_asm_output_data_uleb128 (size, "Location expression size");
else
{
gcc_assert (size <= 0xffff);
dw2_asm_output_data (2, size, "Location expression size");
}
output_loc_sequence (curr->expr, -1);
}