* [binutils-gdb] ld: aarch64: Add BTI stub insertion test PR30930
@ 2023-11-09 14:59 Szabolcs Nagy
0 siblings, 0 replies; only message in thread
From: Szabolcs Nagy @ 2023-11-09 14:59 UTC (permalink / raw)
To: bfd-cvs
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=b418c9d49ece5d503eea35a3ff994e55326da6f9
commit b418c9d49ece5d503eea35a3ff994e55326da6f9
Author: Szabolcs Nagy <szabolcs.nagy@arm.com>
Date: Tue Oct 24 16:24:22 2023 +0100
ld: aarch64: Add BTI stub insertion test PR30930
The test creates a large shared library and covers a number of
BTI stub insertion cases.
Diff:
---
ld/testsuite/ld-aarch64/aarch64-elf.exp | 1 +
ld/testsuite/ld-aarch64/bti-far-3.d | 87 +++++++++++++++++++++++++++++++++
ld/testsuite/ld-aarch64/bti-far-3.ld | 12 +++++
ld/testsuite/ld-aarch64/bti-far-3a.s | 23 +++++++++
ld/testsuite/ld-aarch64/bti-far-3b.s | 25 ++++++++++
ld/testsuite/ld-aarch64/bti-far-3c.s | 24 +++++++++
6 files changed, 172 insertions(+)
diff --git a/ld/testsuite/ld-aarch64/aarch64-elf.exp b/ld/testsuite/ld-aarch64/aarch64-elf.exp
index b025fcbd567..fa5ac3a2cdd 100644
--- a/ld/testsuite/ld-aarch64/aarch64-elf.exp
+++ b/ld/testsuite/ld-aarch64/aarch64-elf.exp
@@ -466,6 +466,7 @@ run_dump_test "undef-tls"
run_dump_test "bti-far-1"
run_dump_test "bti-far-2"
run_dump_test "bti-far-opt"
+run_dump_test "bti-far-3"
if { ![skip_sframe_tests] } {
run_dump_test "sframe-simple-1"
diff --git a/ld/testsuite/ld-aarch64/bti-far-3.d b/ld/testsuite/ld-aarch64/bti-far-3.d
new file mode 100644
index 00000000000..1410b1389b2
--- /dev/null
+++ b/ld/testsuite/ld-aarch64/bti-far-3.d
@@ -0,0 +1,87 @@
+#name: Check indirect call stub to BTI stub relaxation.
+#source: bti-far-3a.s
+#source: bti-far-3b.s
+#source: bti-far-3c.s
+#as: -mabi=lp64
+#ld: -shared -T bti-far-3.ld
+#objdump: -dr
+
+[^:]*: *file format elf64-.*aarch64
+
+
+Disassembly of section \.plt:
+
+0000000000020000 <\.plt>:
+ 20000: d503245f bti c
+ 20004: a9bf7bf0 stp x16, x30, \[sp, #-16\]!
+ 20008: 900fff10 adrp x16, 20000000 <_GLOBAL_OFFSET_TABLE_>
+ 2000c: f9400e11 ldr x17, \[x16, #24\]
+ 20010: 91006210 add x16, x16, #0x18
+ 20014: d61f0220 br x17
+ 20018: d503201f nop
+ 2001c: d503201f nop
+
+0000000000020020 <extern_func@plt>:
+ 20020: 900fff10 adrp x16, 20000000 <_GLOBAL_OFFSET_TABLE_>
+ 20024: f9401211 ldr x17, \[x16, #32\]
+ 20028: 91008210 add x16, x16, #0x20
+ 2002c: d61f0220 br x17
+ 20030: 14000004 b 20040 <__extern_func_bti_veneer\+0x8>
+ 20034: d503201f nop
+
+0000000000020038 <__extern_func_bti_veneer>:
+ 20038: d503245f bti c
+ 2003c: 17fffff9 b 20020 <extern_func@plt>
+
+Disassembly of section \.text:
+
+0000000000030000 <a_func>:
+ 30000: 15c00004 b 7030010 <__b_func_veneer>
+ 30004: 17ffc007 b 20020 <extern_func@plt>
+ \.\.\.
+ 7030008: 1400000a b 7030030 <__a_func_bti_veneer\+0x8>
+ 703000c: d503201f nop
+
+0000000007030010 <__b_func_veneer>:
+ 7030010: 90040010 adrp x16, f030000 <b_func\+0x6ffffd0>
+ 7030014: 9101e210 add x16, x16, #0x78
+ 7030018: d61f0200 br x16
+ \.\.\.
+
+0000000007030028 <__a_func_bti_veneer>:
+ 7030028: d503245f bti c
+ 703002c: 163ffff5 b 30000 <a_func>
+ \.\.\.
+
+0000000008030030 <b_func>:
+ 8030030: 15c00004 b f030040 <__c_func_veneer>
+ 8030034: 15c00005 b f030048 <__a_func_veneer>
+ \.\.\.
+ f030038: 14000012 b f030080 <__b_func_bti_veneer\+0x8>
+ f03003c: d503201f nop
+
+000000000f030040 <__c_func_veneer>:
+ f030040: d503245f bti c
+ f030044: 1440000f b 10030080 <c_func>
+
+000000000f030048 <__a_func_veneer>:
+ f030048: 90fc0010 adrp x16, 7030000 <a_func\+0x7000000>
+ f03004c: 9100a210 add x16, x16, #0x28
+ f030050: d61f0200 br x16
+ \.\.\.
+
+000000000f030060 <__extern_func_veneer>:
+ f030060: 90f87f90 adrp x16, 20000 <\.plt>
+ f030064: 9100e210 add x16, x16, #0x38
+ f030068: d61f0200 br x16
+ \.\.\.
+
+000000000f030078 <__b_func_bti_veneer>:
+ f030078: d503245f bti c
+ f03007c: 163fffed b 8030030 <b_func>
+ \.\.\.
+
+0000000010030080 <c_func>:
+ 10030080: 17bffff2 b f030048 <__a_func_veneer>
+ 10030084: 17bffffd b f030078 <__b_func_bti_veneer>
+ 10030088: 17bffff6 b f030060 <__extern_func_veneer>
diff --git a/ld/testsuite/ld-aarch64/bti-far-3.ld b/ld/testsuite/ld-aarch64/bti-far-3.ld
new file mode 100644
index 00000000000..3265c55b8cc
--- /dev/null
+++ b/ld/testsuite/ld-aarch64/bti-far-3.ld
@@ -0,0 +1,12 @@
+OUTPUT_ARCH(aarch64)
+SECTIONS
+{
+ . = 0x00010000;
+ .rela.plt : { *(.rela.plt) *(.rela.iplt) }
+ . = 0x00020000;
+ .plt : { *(.plt) *(.iplt) }
+ . = 0x00030000;
+ .text : { *(.text) }
+ . = 0x20000000;
+ .got : { *(.got) *(.got.plt) }
+}
diff --git a/ld/testsuite/ld-aarch64/bti-far-3a.s b/ld/testsuite/ld-aarch64/bti-far-3a.s
new file mode 100644
index 00000000000..ed53545fed7
--- /dev/null
+++ b/ld/testsuite/ld-aarch64/bti-far-3a.s
@@ -0,0 +1,23 @@
+ .text
+ .hidden a_func
+ .hidden b_func
+ .hidden c_func
+
+ .global a_func
+ .type a_func, %function
+a_func:
+ b b_func
+ b extern_func
+
+.zero 0x07000000
+
+ .section .note.gnu.property,"a"
+ .align 3
+ .word 4
+ .word 16
+ .word 5
+ .string "GNU"
+ .word 3221225472
+ .word 4
+ .word 1
+ .align 3
diff --git a/ld/testsuite/ld-aarch64/bti-far-3b.s b/ld/testsuite/ld-aarch64/bti-far-3b.s
new file mode 100644
index 00000000000..1f3be3d15cf
--- /dev/null
+++ b/ld/testsuite/ld-aarch64/bti-far-3b.s
@@ -0,0 +1,25 @@
+ .text
+ .hidden a_func
+ .hidden b_func
+ .hidden c_func
+
+.zero 0x01000000
+
+ .global b_func
+ .type b_func, %function
+b_func:
+ b c_func
+ b a_func
+
+.zero 0x07000000
+
+ .section .note.gnu.property,"a"
+ .align 3
+ .word 4
+ .word 16
+ .word 5
+ .string "GNU"
+ .word 3221225472
+ .word 4
+ .word 1
+ .align 3
diff --git a/ld/testsuite/ld-aarch64/bti-far-3c.s b/ld/testsuite/ld-aarch64/bti-far-3c.s
new file mode 100644
index 00000000000..8e2361fd771
--- /dev/null
+++ b/ld/testsuite/ld-aarch64/bti-far-3c.s
@@ -0,0 +1,24 @@
+ .text
+ .hidden a_func
+ .hidden b_func
+ .hidden c_func
+
+.zero 0x01000000
+
+ .global c_func
+ .type c_func, %function
+c_func:
+ b a_func
+ b b_func
+ b extern_func
+
+ .section .note.gnu.property,"a"
+ .align 3
+ .word 4
+ .word 16
+ .word 5
+ .string "GNU"
+ .word 3221225472
+ .word 4
+ .word 1
+ .align 3
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