211 lines
6.4 KiB
Diff
211 lines
6.4 KiB
Diff
# Do not enable IBT when an object file contains code but no GNU Property notes. (#1687774)
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diff -rup binutils.orig/bfd/elfxx-x86.c binutils-2.30/bfd/elfxx-x86.c
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--- binutils.orig/bfd/elfxx-x86.c 2019-03-13 10:19:07.715406452 +0000
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+++ binutils-2.30/bfd/elfxx-x86.c 2019-03-13 10:20:01.255975385 +0000
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@@ -2377,6 +2377,9 @@ _bfd_x86_elf_merge_gnu_properties (struc
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}
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else
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{
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+ /* There should be no AND properties since some input doesn't
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+ have them. Set IBT and SHSTK properties for -z ibt and -z
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+ shstk if needed. */
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features = 0;
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if (info->ibt)
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features = GNU_PROPERTY_X86_FEATURE_1_IBT;
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@@ -2384,18 +2387,15 @@ _bfd_x86_elf_merge_gnu_properties (struc
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features |= GNU_PROPERTY_X86_FEATURE_1_SHSTK;
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if (features)
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{
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- /* Add GNU_PROPERTY_X86_FEATURE_1_IBT and
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- GNU_PROPERTY_X86_FEATURE_1_SHSTK. */
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if (aprop != NULL)
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{
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- number = aprop->u.number;
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- aprop->u.number = number | features;
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- updated = number != (unsigned int) aprop->u.number;
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+ updated = features != (unsigned int) aprop->u.number;
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+ aprop->u.number = features;
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}
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else
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{
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- bprop->u.number |= features;
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updated = TRUE;
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+ bprop->u.number = features;
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}
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}
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else if (aprop != NULL)
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diff -rup binutils.orig/ld/testsuite/ld-i386/i386.exp binutils-2.30/ld/testsuite/ld-i386/i386.exp
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--- binutils.orig/ld/testsuite/ld-i386/i386.exp 2019-03-13 10:19:07.258410131 +0000
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+++ binutils-2.30/ld/testsuite/ld-i386/i386.exp 2019-03-13 10:20:32.995719837 +0000
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@@ -473,6 +473,8 @@ run_dump_test "pr18815"
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run_dump_test "pr19939a"
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run_dump_test "pr19939b"
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run_dump_test "tlsdesc2"
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+run_dump_test "pr24322a"
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+run_dump_test "pr24322b"
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proc undefined_weak {cflags ldflags} {
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set testname "Undefined weak symbol"
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diff -rup binutils.orig/ld/testsuite/ld-x86-64/x86-64.exp binutils-2.30/ld/testsuite/ld-x86-64/x86-64.exp
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--- binutils.orig/ld/testsuite/ld-x86-64/x86-64.exp 2019-03-13 10:19:07.323409608 +0000
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+++ binutils-2.30/ld/testsuite/ld-x86-64/x86-64.exp 2019-03-13 10:21:11.938406302 +0000
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@@ -593,6 +593,10 @@ run_dump_test "pr20253-5a"
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run_dump_test "pr20253-5b"
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run_dump_test "tlsdesc2"
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run_dump_test "pr22048"
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+run_dump_test "pr24322a"
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+run_dump_test "pr24322a-x32"
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+run_dump_test "pr24322b"
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+run_dump_test "pr24322b-x32"
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proc undefined_weak {cflags ldflags} {
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set testname "Undefined weak symbol"
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--- /dev/null 2019-03-13 08:01:41.976955507 +0000
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+++ binutils-2.30/ld/testsuite/ld-i386/pr24322a.d 2019-03-13 11:05:58.557068529 +0000
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@@ -0,0 +1,11 @@
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+#source: ../ld-x86-64/pr24322a.s
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+#source: ../ld-x86-64/pr24322b.s
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+#as: --32
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+#ld: -z shstk -m elf_i386
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+#readelf: -n
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+
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+Displaying notes found in: .note.gnu.property
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+ Owner Data size Description
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+ GNU 0x000000.. NT_GNU_PROPERTY_TYPE_0
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+ Properties: x86 feature: SHSTK
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+
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--- /dev/null 2019-03-13 08:01:41.976955507 +0000
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+++ binutils-2.30/ld/testsuite/ld-i386/pr24322b.d 2019-03-13 11:07:19.837414751 +0000
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@@ -0,0 +1,11 @@
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+#source: ../ld-x86-64/pr24322c.s
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+#source: ../ld-x86-64/pr24322b.s
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+#as: --32
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+#ld: -z shstk -m elf_i386
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+#readelf: -n
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+
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+Displaying notes found in: .note.gnu.property
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+ Owner Data size Description
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+ GNU 0x000000.. NT_GNU_PROPERTY_TYPE_0
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+ Properties: x86 feature: SHSTK
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+
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--- /dev/null 2019-03-13 08:01:41.976955507 +0000
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+++ binutils-2.30/ld/testsuite/ld-x86-64/pr24322a.s 2019-03-13 10:20:01.256975377 +0000
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@@ -0,0 +1,27 @@
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+ .section ".note.gnu.property", "a"
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+.ifdef __64_bit__
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+ .p2align 3
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+.else
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+ .p2align 2
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+.endif
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+ .long 1f - 0f /* name length */
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+ .long 5f - 2f /* data length */
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+ .long 5 /* note type */
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+0: .asciz "GNU" /* vendor name */
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+1:
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+.ifdef __64_bit__
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+ .p2align 3
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+.else
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+ .p2align 2
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+.endif
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+2: .long 0xc0000002 /* pr_type. */
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+ .long 4f - 3f /* pr_datasz. */
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+3:
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+ .long 0x3
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+4:
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+.ifdef __64_bit__
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+ .p2align 3
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+.else
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+ .p2align 2
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+.endif
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+5:
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--- /dev/null 2019-03-13 08:01:41.976955507 +0000
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+++ binutils-2.30/ld/testsuite/ld-x86-64/pr24322a.d 2019-03-13 11:07:47.228194433 +0000
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@@ -0,0 +1,10 @@
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+#source: pr24322a.s
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+#source: pr24322b.s
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+#as: --64 -defsym __64_bit__=1
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+#ld: -z shstk -melf_x86_64
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+#readelf: -n
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+
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+Displaying notes found in: .note.gnu.property
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+ Owner Data size Description
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+ GNU 0x000000.. NT_GNU_PROPERTY_TYPE_0
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+ Properties: x86 feature: SHSTK
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--- /dev/null 2019-03-13 08:01:41.976955507 +0000
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+++ binutils-2.30/ld/testsuite/ld-x86-64/pr24322a-x32.d 2019-03-13 11:10:46.635235620 +0000
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@@ -0,0 +1,10 @@
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+#source: pr24322a.s
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+#source: pr24322b.s
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+#as: --x32
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+#ld: -z shstk -m elf32_x86_64
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+#readelf: -n
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+
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+Displaying notes found in: .note.gnu.property
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+ Owner Data size Description
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+ GNU 0x000000.. NT_GNU_PROPERTY_TYPE_0
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+ Properties: x86 feature: SHSTK
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--- /dev/null 2019-03-13 08:01:41.976955507 +0000
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+++ binutils-2.30/ld/testsuite/ld-x86-64/pr24322b.s 2019-03-13 10:20:01.257975369 +0000
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@@ -0,0 +1,4 @@
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+ .text
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+ .global _start
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+_start:
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+ ret
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--- /dev/null 2019-03-13 08:01:41.976955507 +0000
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+++ binutils-2.30/ld/testsuite/ld-x86-64/pr24322b.d 2019-03-13 11:08:03.948059948 +0000
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@@ -0,0 +1,10 @@
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+#source: pr24322c.s
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+#source: pr24322b.s
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+#as: --64 -defsym __64_bit__=1
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+#ld: -z shstk -melf_x86_64
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+#readelf: -n
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+
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+Displaying notes found in: .note.gnu.property
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+ Owner Data size Description
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+ GNU 0x000000.. NT_GNU_PROPERTY_TYPE_0
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+ Properties: x86 feature: SHSTK
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--- /dev/null 2019-03-13 08:01:41.976955507 +0000
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+++ binutils-2.30/ld/testsuite/ld-x86-64/pr24322b-x32.d 2019-03-13 11:13:13.626524410 +0000
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@@ -0,0 +1,10 @@
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+#source: pr24322c.s
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+#source: pr24322b.s
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+#as: --x32
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+#ld: -z shstk -m elf32_x86_64
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+#readelf: -n
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+
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+Displaying notes found in: .note.gnu.property
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+ Owner Data size Description
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+ GNU 0x000000.. NT_GNU_PROPERTY_TYPE_0
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+ Properties: x86 feature: SHSTK
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--- /dev/null 2019-03-13 08:01:41.976955507 +0000
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+++ binutils-2.30/ld/testsuite/ld-x86-64/pr24322c.s 2019-03-13 10:20:01.257975369 +0000
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@@ -0,0 +1,27 @@
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+ .section ".note.gnu.property", "a"
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+.ifdef __64_bit__
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+ .p2align 3
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+.else
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+ .p2align 2
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+.endif
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+ .long 1f - 0f /* name length */
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+ .long 5f - 2f /* data length */
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+ .long 5 /* note type */
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+0: .asciz "GNU" /* vendor name */
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+1:
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+.ifdef __64_bit__
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+ .p2align 3
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+.else
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+ .p2align 2
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+.endif
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+2: .long 0xc0000002 /* pr_type. */
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+ .long 4f - 3f /* pr_datasz. */
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+3:
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+ .long 0x0
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+4:
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+.ifdef __64_bit__
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+ .p2align 3
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+.else
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+ .p2align 2
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+.endif
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+5:
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