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* [gcc r12-3740] [Ada] Follow-up tweaks to System.Dwarf_Line
@ 2021-09-21 15:26 Pierre-Marie de Rodat
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From: Pierre-Marie de Rodat @ 2021-09-21 15:26 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:97c5d522c6ee36b7ed1824d1eb6b8f30172c1818
commit r12-3740-g97c5d522c6ee36b7ed1824d1eb6b8f30172c1818
Author: Eric Botcazou <ebotcazou@adacore.com>
Date: Tue Jul 6 12:18:57 2021 +0200
[Ada] Follow-up tweaks to System.Dwarf_Line
gcc/ada/
* libgnat/s-dwalin.adb (Skip_Form): Fix cases of DW_FORM_addrx
and DW_FORM_implicit_const. Replace Constraint_Error with
Dwarf_Error.
Diff:
---
gcc/ada/libgnat/s-dwalin.adb | 15 +++++++--------
1 file changed, 7 insertions(+), 8 deletions(-)
diff --git a/gcc/ada/libgnat/s-dwalin.adb b/gcc/ada/libgnat/s-dwalin.adb
index 530b8029427..74700e68bfc 100644
--- a/gcc/ada/libgnat/s-dwalin.adb
+++ b/gcc/ada/libgnat/s-dwalin.adb
@@ -1114,8 +1114,6 @@ package body System.Dwarf_Lines is
case Form is
when DW_FORM_addr =>
Skip := Offset (Ptr_Sz);
- when DW_FORM_addrx =>
- Skip := Offset (uint32'(Read_LEB128 (S)));
when DW_FORM_block1 =>
Skip := Offset (uint8'(Read (S)));
when DW_FORM_block2 =>
@@ -1161,11 +1159,12 @@ package body System.Dwarf_Lines is
begin
return;
end;
- when DW_FORM_udata
- | DW_FORM_ref_udata
+ when DW_FORM_addrx
| DW_FORM_loclistx
+ | DW_FORM_ref_udata
| DW_FORM_rnglistx
| DW_FORM_strx
+ | DW_FORM_udata
=>
declare
Val : constant uint32 := Read_LEB128 (S);
@@ -1173,7 +1172,7 @@ package body System.Dwarf_Lines is
begin
return;
end;
- when DW_FORM_flag_present =>
+ when DW_FORM_flag_present | DW_FORM_implicit_const =>
return;
when DW_FORM_ref_addr
| DW_FORM_sec_offset
@@ -1187,10 +1186,10 @@ package body System.Dwarf_Lines is
null;
end loop;
return;
- when DW_FORM_implicit_const | DW_FORM_indirect =>
- raise Constraint_Error;
+ when DW_FORM_indirect =>
+ raise Dwarf_Error with "DW_FORM_indirect not implemented";
when others =>
- raise Constraint_Error;
+ raise Dwarf_Error with "DWARF form not implemented";
end case;
Seek (S, Tell (S) + Skip);
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