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0.13-6

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This commit is contained in:
Jakub Jelinek 2021-01-20 21:40:25 +01:00
parent 1db0aa0251
commit 57347da927
2 changed files with 93 additions and 1 deletions
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87
dwz.patch Normal file
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@ -0,0 +1,87 @@
diff --git a/dwz.c b/dwz.c
index 308bcba..a6ea5ec 100644
--- a/dwz.c
+++ b/dwz.c
@@ -3580,7 +3580,14 @@ checksum_die (DSO *dso, dw_cu_ref cu, dw_die_ref top_die, dw_die_ref die)
ptr += ptr_size;
break;
case DW_FORM_flag_present:
+ break;
case DW_FORM_implicit_const:
+ if (!handled && die->die_ck_state != CK_BAD)
+ {
+ handled = true;
+ die->u.p1.die_hash
+ = iterative_hash_object (t->values[i], die->u.p1.die_hash);
+ }
break;
case DW_FORM_flag:
case DW_FORM_data1:
@@ -4837,7 +4844,11 @@ die_eq_1 (dw_cu_ref cu1, dw_cu_ref cu2,
ptr2 += ptr_size;
break;
case DW_FORM_flag_present:
+ break;
case DW_FORM_implicit_const:
+ if ((!ignore_locus || old_ptr1)
+ && t1->values[i] != t2->values[j])
+ FAIL;
break;
case DW_FORM_flag:
case DW_FORM_data1:
@@ -10456,19 +10467,18 @@ build_abbrevs_for_die (htab_t h, dw_cu_ref cu, dw_die_ref die,
case DW_FORM_data4: value = read_32 (ptr); break;
case DW_FORM_data8: value = read_64 (ptr); break;
case DW_FORM_udata: value = read_uleb128 (ptr); break;
- case DW_FORM_implicit_const: break;
+ case DW_FORM_implicit_const:
+ value = reft->values[i];
+ break;
default:
error (0, 0, "Unhandled %s for %s",
get_DW_FORM_str (form),
get_DW_AT_str (reft->attr[i].attr));
return 1;
}
- /* Note that the value is only used for calculating the
- DIE size and possibly change form. Doesn't change the
- implicit_const from or value. */
+ value = line_htab_lookup (refcu, value);
if (form != DW_FORM_implicit_const)
{
- value = line_htab_lookup (refcu, value);
if (value <= 0xff)
{
form = DW_FORM_data1;
@@ -10488,7 +10498,7 @@ build_abbrevs_for_die (htab_t h, dw_cu_ref cu, dw_die_ref die,
t->attr[j].attr = reft->attr[i].attr;
t->attr[j].form = form;
if (form == DW_FORM_implicit_const)
- t->values[j] = reft->values[i];
+ t->values[j] = value;
j++;
continue;
}
@@ -12088,10 +12098,8 @@ write_die (unsigned char *ptr, dw_cu_ref cu, dw_die_ref die,
update = true;
break;
case DW_FORM_implicit_const:
- /* Negative means, already transformed. */
- if (reft->values[i] >= 0)
- update = true;
- value = reft->values[i];
+ /* DW_FORM_implicit_const should have been updated
+ already when computing abbrevs. */
break;
default: abort ();
}
@@ -12104,9 +12112,6 @@ write_die (unsigned char *ptr, dw_cu_ref cu, dw_die_ref die,
case DW_FORM_data2: write_16 (ptr, value); break;
case DW_FORM_data4: write_32 (ptr, value); break;
case DW_FORM_udata: write_uleb128 (ptr, value); break;
- case DW_FORM_implicit_const:
- reft->values[i] = -value; /* Note, negated. */
- break;
default: abort ();
}
}

7
dwz.spec
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@ -1,11 +1,12 @@
Summary: DWARF optimization and duplicate removal tool
Name: dwz
Version: 0.13
Release: 5%{?dist}
Release: 6%{?dist}
License: GPLv2+ and GPLv3+
#Source: https://sourceware.org/ftp/dwz/releases/%{name}-%{version}.tar.xz
#git clone git://sourceware.org/git/dwz; cd dwz; git archive --format=tar --prefix=dwz/ 40d5efd4edc52a7d2ed02f8400a9beb129053271 | xz -9e > ../dwz-20210118.tar.xz
Source: %{name}-20210118.tar.xz
Patch: %{name}.patch
BuildRequires: gcc, gcc-c++, gdb, elfutils-libelf-devel, dejagnu
BuildRequires: make
@ -20,6 +21,7 @@ and using DW_TAG_imported_unit to import it into each CU that needs it.
%prep
%setup -q -n dwz
%patch -p1
%build
%make_build CFLAGS='%{optflags}' LDFLAGS='%{build_ldflags}' \
@ -38,6 +40,9 @@ make check
%{_mandir}/man1/dwz.1*
%changelog
* Wed Jan 20 2021 Jakub Jelinek <jakub@redhat.com> 0.13-6
- DW_FORM_implicit_const handling fixes (sw#27212, sw#27213)
* Mon Jan 18 2021 Jakub Jelinek <jakub@redhat.com> 0.13-5
- update to latest git snapshot
- DWARF5 support