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DWARF: Check version >= 3 for DW_FORM_ref_addr

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Check version >= 3, instead of version == 3 || version == 4, for
DW_FORM_ref_addr.

bfd/

	PR ld/27587
	* dwarf2.c (read_attribute_value): Check version >= 3 for
	DW_FORM_ref_addr.

ld/

	PR ld/27587
	* testsuite/ld-x86-64/pr27587.err: New file.
	* testsuite/ld-x86-64/pr27587a.obj.bz2: Likewise.
	* testsuite/ld-x86-64/pr27587b.obj.bz2: Likewise.
	* testsuite/ld-x86-64/x86-64.exp: Run PR ld/27587 test.
This commit is contained in:
H.J. Lu 2021-03-18 18:34:38 -07:00
parent fb099b8a51
commit 51f6e7a9f4
7 changed files with 23 additions and 1 deletions
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6
bfd/ChangeLog
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@ -1,3 +1,9 @@
2021-03-18 H.J. Lu <hongjiu.lu@intel.com>
PR ld/27587
* dwarf2.c (read_attribute_value): Check version >= 3 for
DW_FORM_ref_addr.
2021-03-16 Nick Clifton <nickc@redhat.com>
* peXXigen.c (_bfd_XXi_swap_aux_out): Avoid potential buffer

2
bfd/dwarf2.c
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@ -1213,7 +1213,7 @@ read_attribute_value (struct attribute * attr,
case DW_FORM_ref_addr:
/* DW_FORM_ref_addr is an address in DWARF2, and an offset in
DWARF3. */
if (unit->version == 3 || unit->version == 4)
if (unit->version >= 3)
{
if (unit->offset_size == 4)
attr->u.val = read_4_bytes (unit->abfd, info_ptr, info_ptr_end);

8
ld/ChangeLog
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@ -1,3 +1,11 @@
2021-03-18 H.J. Lu <hongjiu.lu@intel.com>
PR ld/27587
* testsuite/ld-x86-64/pr27587.err: New file.
* testsuite/ld-x86-64/pr27587a.obj.bz2: Likewise.
* testsuite/ld-x86-64/pr27587b.obj.bz2: Likewise.
* testsuite/ld-x86-64/x86-64.exp: Run PR ld/27587 test.
2021-03-18 Nick Alcock <nick.alcock@oracle.com>
* testsuite/ld-ctf/slice.c: Check slices of enums too.

3
ld/testsuite/ld-x86-64/pr27587.err Normal file
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@ -0,0 +1,3 @@
#...
.*pr27587.i:4: undefined reference to `stack_size'
#...

BIN
ld/testsuite/ld-x86-64/pr27587a.obj.bz2 Normal file
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Binary file not shown.

BIN
ld/testsuite/ld-x86-64/pr27587b.obj.bz2 Normal file
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Binary file not shown.

5
ld/testsuite/ld-x86-64/x86-64.exp
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@ -221,6 +221,11 @@ set x86_64tests {
"-melf_x86_64 -pie -z notext tmpdir/pr20550a.o tmpdir/pr20550b.so"
""
"--64" { dummy.s } {} "pr20550"}
{"Build pr27587"
"-melf_x86_64 -e main"
"" ""
{ pr27587a.obj.bz2 pr27587b.obj.bz2 }
{{ld "pr27587.err"}} "pr27587"}
}
run_ld_link_tests $x86_64tests