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authorH.J. Lu <hjl.tools@gmail.com>2021-01-09 06:11:06 -0800
committerH.J. Lu <hjl.tools@gmail.com>2021-01-09 06:13:11 -0800
commit0a94990bf64a82bdf73960fec1b47fef7c6a6ced (patch)
tree739ccefb6a395a463262da661010b90716fe9ccc
parentf41464416a1744ca0151d61de1a7e405664dd9b7 (diff)
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ld/x86-64: Properly Handle -z lam-u48/lam-u57
Properly merge GNU properties for LAM_U48 and LAM_U57. bfd/ PR ld/27166 * elfxx-x86.c (_bfd_x86_elf_merge_gnu_properties): Handle -z lam-u48 and -z lam-u57. ld/ PR ld/27166 * testsuite/ld-x86-64/lam-u48.rd: New file. * testsuite/ld-x86-64/lam-u57.rd: Likewise. * testsuite/ld-x86-64/x86-64.exp: Add PR ld/27166 tests.
-rw-r--r--bfd/ChangeLog6
-rw-r--r--bfd/elfxx-x86.c16
-rw-r--r--ld/ChangeLog7
-rw-r--r--ld/testsuite/ld-x86-64/lam-u48.rd6
-rw-r--r--ld/testsuite/ld-x86-64/lam-u57.rd6
-rw-r--r--ld/testsuite/ld-x86-64/x86-64.exp16
6 files changed, 55 insertions, 2 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 560287f..d33445f 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,9 @@
+2021-01-09 H.J. Lu <hongjiu.lu@intel.com>
+
+ PR ld/27166
+ * elfxx-x86.c (_bfd_x86_elf_merge_gnu_properties): Handle
+ -z lam-u48 and -z lam-u57.
+
2021-01-09 Nick Clifton <nickc@redhat.com>
* version.m4: Change to 2.36.50.
diff --git a/bfd/elfxx-x86.c b/bfd/elfxx-x86.c
index c47f482..3a0dffc 100644
--- a/bfd/elfxx-x86.c
+++ b/bfd/elfxx-x86.c
@@ -2449,8 +2449,15 @@ _bfd_x86_elf_merge_gnu_properties (struct bfd_link_info *info,
features = GNU_PROPERTY_X86_FEATURE_1_IBT;
if (htab->params->shstk)
features |= GNU_PROPERTY_X86_FEATURE_1_SHSTK;
- /* Add GNU_PROPERTY_X86_FEATURE_1_IBT and
- GNU_PROPERTY_X86_FEATURE_1_SHSTK. */
+ if (htab->params->lam_u48)
+ features |= (GNU_PROPERTY_X86_FEATURE_1_LAM_U48
+ | GNU_PROPERTY_X86_FEATURE_1_LAM_U57);
+ else if (htab->params->lam_u57)
+ features |= GNU_PROPERTY_X86_FEATURE_1_LAM_U57;
+ /* Add GNU_PROPERTY_X86_FEATURE_1_IBT,
+ GNU_PROPERTY_X86_FEATURE_1_SHSTK,
+ GNU_PROPERTY_X86_FEATURE_1_LAM_U48 and
+ GNU_PROPERTY_X86_FEATURE_1_LAM_U57. */
aprop->u.number |= features;
}
updated = number != (unsigned int) aprop->u.number;
@@ -2470,6 +2477,11 @@ _bfd_x86_elf_merge_gnu_properties (struct bfd_link_info *info,
features = GNU_PROPERTY_X86_FEATURE_1_IBT;
if (htab->params->shstk)
features |= GNU_PROPERTY_X86_FEATURE_1_SHSTK;
+ if (htab->params->lam_u48)
+ features |= (GNU_PROPERTY_X86_FEATURE_1_LAM_U48
+ | GNU_PROPERTY_X86_FEATURE_1_LAM_U57);
+ else if (htab->params->lam_u57)
+ features |= GNU_PROPERTY_X86_FEATURE_1_LAM_U57;
}
if (features)
{
diff --git a/ld/ChangeLog b/ld/ChangeLog
index 75bcad2..0628a45 100644
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,3 +1,10 @@
+2021-01-09 H.J. Lu <hongjiu.lu@intel.com>
+
+ PR ld/27166
+ * testsuite/ld-x86-64/lam-u48.rd: New file.
+ * testsuite/ld-x86-64/lam-u57.rd: Likewise.
+ * testsuite/ld-x86-64/x86-64.exp: Add PR ld/27166 tests.
+
2021-01-09 Nick Clifton <nickc@redhat.com>
* configure: Regenerate.
diff --git a/ld/testsuite/ld-x86-64/lam-u48.rd b/ld/testsuite/ld-x86-64/lam-u48.rd
new file mode 100644
index 0000000..ad31262
--- /dev/null
+++ b/ld/testsuite/ld-x86-64/lam-u48.rd
@@ -0,0 +1,6 @@
+Displaying notes found in: .note.gnu.property
+[ ]+Owner[ ]+Data size[ ]+Description
+ GNU 0x[0-9a-f]+ NT_GNU_PROPERTY_TYPE_0
+#...
+ Properties: x86 feature: .*LAM_U48, LAM_U57.*
+#pass
diff --git a/ld/testsuite/ld-x86-64/lam-u57.rd b/ld/testsuite/ld-x86-64/lam-u57.rd
new file mode 100644
index 0000000..8b77e63
--- /dev/null
+++ b/ld/testsuite/ld-x86-64/lam-u57.rd
@@ -0,0 +1,6 @@
+Displaying notes found in: .note.gnu.property
+[ ]+Owner[ ]+Data size[ ]+Description
+ GNU 0x[0-9a-f]+ NT_GNU_PROPERTY_TYPE_0
+#...
+ Properties: x86 feature: .*LAM_U57.*
+#pass
diff --git a/ld/testsuite/ld-x86-64/x86-64.exp b/ld/testsuite/ld-x86-64/x86-64.exp
index 37a2e50..83fdaa7 100644
--- a/ld/testsuite/ld-x86-64/x86-64.exp
+++ b/ld/testsuite/ld-x86-64/x86-64.exp
@@ -1452,6 +1452,22 @@ if { [isnative] && [check_compiler_available] } {
{{error_output "pr21997-1b.err"}} \
"pr21997-1b" \
] \
+ [list \
+ "Build lam-u48.so" \
+ "-shared -Wl,-z,lam-u48" \
+ "" \
+ {dummy.s} \
+ {{readelf -n lam-u48.rd}} \
+ "lam-u48.so" \
+ ] \
+ [list \
+ "Build lam-u57.so" \
+ "-shared -Wl,-z,lam-u57" \
+ "" \
+ {dummy.s} \
+ {{readelf -n lam-u57.rd}} \
+ "lam-u57.so" \
+ ] \
]
}