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* [gcc(refs/vendors/ARM/heads/arm-12-m-pacbti)] [PATCH 7/15] arm: Emit build attributes for PACBTI target feature
@ 2023-03-10 16:21 Andrea Corallo
  0 siblings, 0 replies; 2+ messages in thread
From: Andrea Corallo @ 2023-03-10 16:21 UTC (permalink / raw)
  To: gcc-cvs

https://gcc.gnu.org/g:a09ba7a1686de8494873601940660b197c73e503

commit a09ba7a1686de8494873601940660b197c73e503
Author: Andrea Corallo <andrea.corallo@arm.com>
Date:   Mon Dec 6 11:42:24 2021 +0100

    [PATCH 7/15] arm: Emit build attributes for PACBTI target feature
    
    This patch emits assembler directives for PACBTI build attributes as
    defined by the
    ABI.
    
    <https://github.com/ARM-software/abi-aa/releases/download/2021Q1/addenda32.pdf>
    
    gcc/ChangeLog:
    
            * config/arm/arm.cc (arm_file_start): Emit EABI attributes for
            Tag_PAC_extension, Tag_BTI_extension, TAG_BTI_use, TAG_PACRET_use.
    
    gcc/testsuite/ChangeLog:
    
            * gcc.target/arm/acle/pacbti-m-predef-1.c: New test.
            * gcc.target/arm/acle/pacbti-m-predef-3.c: Likewise.
            * gcc.target/arm/acle/pacbti-m-predef-6.c: Likewise.
            * gcc.target/arm/acle/pacbti-m-predef-7.c: Likewise.
    
    Co-Authored-By: Tejas Belagod  <tbelagod@arm.com>

Diff:
---
 gcc/config/arm/arm.cc                                 | 18 ++++++++++++++++++
 gcc/testsuite/gcc.target/arm/acle/pacbti-m-predef-1.c | 17 +++++++++++++++++
 gcc/testsuite/gcc.target/arm/acle/pacbti-m-predef-3.c | 17 +++++++++++++++++
 gcc/testsuite/gcc.target/arm/acle/pacbti-m-predef-6.c | 16 ++++++++++++++++
 gcc/testsuite/gcc.target/arm/acle/pacbti-m-predef-7.c | 17 +++++++++++++++++
 5 files changed, 85 insertions(+)

diff --git a/gcc/config/arm/arm.cc b/gcc/config/arm/arm.cc
index 994b1f5d41f..eccd6c0f529 100644
--- a/gcc/config/arm/arm.cc
+++ b/gcc/config/arm/arm.cc
@@ -28375,6 +28375,8 @@ static void
 arm_file_start (void)
 {
   int val;
+  bool pac = (aarch_ra_sign_scope != AARCH_FUNCTION_NONE);
+  bool bti = (aarch_enable_bti == 1);
 
   arm_print_asm_arch_directives
     (asm_out_file, TREE_TARGET_OPTION (target_option_default_node));
@@ -28445,6 +28447,22 @@ arm_file_start (void)
 	arm_emit_eabi_attribute ("Tag_ABI_FP_16bit_format", 38,
 			     (int) arm_fp16_format);
 
+      if (TARGET_HAVE_PACBTI)
+	{
+	  arm_emit_eabi_attribute ("Tag_PAC_extension", 50, 2);
+	  arm_emit_eabi_attribute ("Tag_BTI_extension", 52, 2);
+	}
+      else if (pac || bti)
+	{
+	  arm_emit_eabi_attribute ("Tag_PAC_extension", 50, 1);
+	  arm_emit_eabi_attribute ("Tag_BTI_extension", 52, 1);
+	}
+
+      if (bti)
+        arm_emit_eabi_attribute ("TAG_BTI_use", 74, 1);
+      if (pac)
+	arm_emit_eabi_attribute ("TAG_PACRET_use", 76, 1);
+
       if (arm_lang_output_object_attributes_hook)
 	arm_lang_output_object_attributes_hook();
     }
diff --git a/gcc/testsuite/gcc.target/arm/acle/pacbti-m-predef-1.c b/gcc/testsuite/gcc.target/arm/acle/pacbti-m-predef-1.c
new file mode 100644
index 00000000000..122f7a762a7
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/acle/pacbti-m-predef-1.c
@@ -0,0 +1,17 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target mbranch_protection_ok } */
+/* { dg-options "-march=armv8.1-m.main+fp -mbranch-protection=pac-ret+bti -mfloat-abi=hard --save-temps" } */
+
+#if !defined (__ARM_FEATURE_BTI_DEFAULT)
+#error "Feature test macro __ARM_FEATURE_BTI_DEFAULT should be defined."
+#endif
+
+#if !defined (__ARM_FEATURE_PAC_DEFAULT)
+#error "Feature test macro __ARM_FEATURE_PAC_DEFAULT should be defined."
+#endif
+
+/* { dg-final { scan-assembler-not "\.arch_extension pacbti" } } */
+/* { dg-final { scan-assembler "\.eabi_attribute 50, 1" } } */
+/* { dg-final { scan-assembler "\.eabi_attribute 52, 1" } } */
+/* { dg-final { scan-assembler "\.eabi_attribute 74, 1" } } */
+/* { dg-final { scan-assembler "\.eabi_attribute 76, 1" } } */
diff --git a/gcc/testsuite/gcc.target/arm/acle/pacbti-m-predef-3.c b/gcc/testsuite/gcc.target/arm/acle/pacbti-m-predef-3.c
new file mode 100644
index 00000000000..b94f3447ad9
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/acle/pacbti-m-predef-3.c
@@ -0,0 +1,17 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target mbranch_protection_ok } */
+/* { dg-options "-march=armv8.1-m.main+fp -mbranch-protection=pac-ret+leaf -mfloat-abi=hard --save-temps" } */
+
+#if defined (__ARM_FEATURE_BTI_DEFAULT)
+#error "Feature test macro __ARM_FEATURE_BTI_DEFAULT should be undefined."
+#endif
+
+#if !defined (__ARM_FEATURE_PAC_DEFAULT)
+#error "Feature test macro __ARM_FEATURE_PAC_DEFAULT should be defined."
+#endif
+
+/* { dg-final { scan-assembler-not "\.arch_extension pacbti" } } */
+/* { dg-final { scan-assembler "\.eabi_attribute 50, 1" } } */
+/* { dg-final { scan-assembler "\.eabi_attribute 52, 1" } } */
+/* { dg-final { scan-assembler-not "\.eabi_attribute 74" } } */
+/* { dg-final { scan-assembler "\.eabi_attribute 76, 1" } } */
diff --git a/gcc/testsuite/gcc.target/arm/acle/pacbti-m-predef-6.c b/gcc/testsuite/gcc.target/arm/acle/pacbti-m-predef-6.c
new file mode 100644
index 00000000000..ed52afc83c5
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/acle/pacbti-m-predef-6.c
@@ -0,0 +1,16 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target mbranch_protection_ok } */
+/* { dg-additional-options "-march=armv8.1-m.main+fp -mbranch-protection=bti -mfloat-abi=hard --save-temps" } */
+
+#if !defined (__ARM_FEATURE_BTI_DEFAULT)
+#error "Feature test macro __ARM_FEATURE_BTI_DEFAULT should be defined."
+#endif
+
+#if defined (__ARM_FEATURE_PAC_DEFAULT)
+#error "Feature test macro __ARM_FEATURE_PAC_DEFAULT should be undefined."
+#endif
+/* { dg-final { scan-assembler-not "\.arch_extension pacbti" } } */
+/* { dg-final { scan-assembler "\.eabi_attribute 50, 1" } } */
+/* { dg-final { scan-assembler "\.eabi_attribute 52, 1" } } */
+/* { dg-final { scan-assembler "\.eabi_attribute 74, 1" } } */
+/* { dg-final { scan-assembler-not "\.eabi_attribute 76" } } */
diff --git a/gcc/testsuite/gcc.target/arm/acle/pacbti-m-predef-7.c b/gcc/testsuite/gcc.target/arm/acle/pacbti-m-predef-7.c
new file mode 100644
index 00000000000..1b25907635e
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/acle/pacbti-m-predef-7.c
@@ -0,0 +1,17 @@
+/* { dg-do compile } */
+/* { dg-skip-if "avoid conflicting multilib options" { *-*-* } { "-marm" "-mcpu=*" } } */
+/* { dg-additional-options "-march=armv8.1-m.main+pacbti+fp --save-temps -mfloat-abi=hard" } */
+
+#if defined (__ARM_FEATURE_BTI_DEFAULT)
+#error "Feature test macro __ARM_FEATURE_BTI_DEFAULT should be undefined."
+#endif
+
+#if defined (__ARM_FEATURE_PAC_DEFAULT)
+#error "Feature test macro __ARM_FEATURE_PAC_DEFAULT should be undefined."
+#endif
+
+/* { dg-final { scan-assembler "\.arch_extension pacbti" } } */
+/* { dg-final { scan-assembler "\.eabi_attribute 50, 2" } } */
+/* { dg-final { scan-assembler "\.eabi_attribute 52, 2" } } */
+/* { dg-final { scan-assembler-not "\.eabi_attribute 74" } } */
+/* { dg-final { scan-assembler-not "\.eabi_attribute 76" } } */

^ permalink raw reply	[flat|nested] 2+ messages in thread

* [gcc(refs/vendors/ARM/heads/arm-12-m-pacbti)] [PATCH 7/15] arm: Emit build attributes for PACBTI target feature
@ 2022-08-12 16:30 Andrea Corallo
  0 siblings, 0 replies; 2+ messages in thread
From: Andrea Corallo @ 2022-08-12 16:30 UTC (permalink / raw)
  To: gcc-cvs

https://gcc.gnu.org/g:8d7778d759c496f376540130a3183a88c12a1aa1

commit 8d7778d759c496f376540130a3183a88c12a1aa1
Author: Andrea Corallo <andrea.corallo@arm.com>
Date:   Mon Dec 6 11:42:24 2021 +0100

    [PATCH 7/15] arm: Emit build attributes for PACBTI target feature
    
    This patch emits assembler directives for PACBTI build attributes as
    defined by the
    ABI.
    
    <https://github.com/ARM-software/abi-aa/releases/download/2021Q1/addenda32.pdf>
    
    gcc/ChangeLog:
    
            * config/arm/arm.c (arm_file_start): Emit EABI attributes for
            Tag_PAC_extension, Tag_BTI_extension, TAG_BTI_use, TAG_PACRET_use.
    
    gcc/testsuite/ChangeLog:
    
            * gcc.target/arm/acle/pacbti-m-predef-1.c: New test.
            * gcc.target/arm/acle/pacbti-m-predef-3: Likewise.
            * gcc.target/arm/acle/pacbti-m-predef-6.c: Likewise.
            * gcc.target/arm/acle/pacbti-m-predef-7.c: Likewise.
    
    Co-Authored-By: Tejas Belagod  <tbelagod@arm.com>

Diff:
---
 gcc/config/arm/arm.cc                                 | 18 ++++++++++++++++++
 gcc/testsuite/gcc.target/arm/acle/pacbti-m-predef-1.c | 17 +++++++++++++++++
 gcc/testsuite/gcc.target/arm/acle/pacbti-m-predef-3.c | 17 +++++++++++++++++
 gcc/testsuite/gcc.target/arm/acle/pacbti-m-predef-6.c | 16 ++++++++++++++++
 gcc/testsuite/gcc.target/arm/acle/pacbti-m-predef-7.c | 17 +++++++++++++++++
 5 files changed, 85 insertions(+)

diff --git a/gcc/config/arm/arm.cc b/gcc/config/arm/arm.cc
index e584d14c9ee..c49c86e75b8 100644
--- a/gcc/config/arm/arm.cc
+++ b/gcc/config/arm/arm.cc
@@ -28357,6 +28357,8 @@ static void
 arm_file_start (void)
 {
   int val;
+  bool pac = (aarch_ra_sign_scope != AARCH_FUNCTION_NONE);
+  bool bti = (aarch_enable_bti == 1);
 
   arm_print_asm_arch_directives
     (asm_out_file, TREE_TARGET_OPTION (target_option_default_node));
@@ -28427,6 +28429,22 @@ arm_file_start (void)
 	arm_emit_eabi_attribute ("Tag_ABI_FP_16bit_format", 38,
 			     (int) arm_fp16_format);
 
+      if (TARGET_HAVE_PACBTI)
+	{
+	  arm_emit_eabi_attribute ("Tag_PAC_extension", 50, 2);
+	  arm_emit_eabi_attribute ("Tag_BTI_extension", 52, 2);
+	}
+      else if (pac || bti)
+	{
+	  arm_emit_eabi_attribute ("Tag_PAC_extension", 50, 1);
+	  arm_emit_eabi_attribute ("Tag_BTI_extension", 52, 1);
+	}
+
+      if (bti)
+        arm_emit_eabi_attribute ("TAG_BTI_use", 74, 1);
+      if (pac)
+	arm_emit_eabi_attribute ("TAG_PACRET_use", 76, 1);
+
       if (arm_lang_output_object_attributes_hook)
 	arm_lang_output_object_attributes_hook();
     }
diff --git a/gcc/testsuite/gcc.target/arm/acle/pacbti-m-predef-1.c b/gcc/testsuite/gcc.target/arm/acle/pacbti-m-predef-1.c
new file mode 100644
index 00000000000..122f7a762a7
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/acle/pacbti-m-predef-1.c
@@ -0,0 +1,17 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target mbranch_protection_ok } */
+/* { dg-options "-march=armv8.1-m.main+fp -mbranch-protection=pac-ret+bti -mfloat-abi=hard --save-temps" } */
+
+#if !defined (__ARM_FEATURE_BTI_DEFAULT)
+#error "Feature test macro __ARM_FEATURE_BTI_DEFAULT should be defined."
+#endif
+
+#if !defined (__ARM_FEATURE_PAC_DEFAULT)
+#error "Feature test macro __ARM_FEATURE_PAC_DEFAULT should be defined."
+#endif
+
+/* { dg-final { scan-assembler-not "\.arch_extension pacbti" } } */
+/* { dg-final { scan-assembler "\.eabi_attribute 50, 1" } } */
+/* { dg-final { scan-assembler "\.eabi_attribute 52, 1" } } */
+/* { dg-final { scan-assembler "\.eabi_attribute 74, 1" } } */
+/* { dg-final { scan-assembler "\.eabi_attribute 76, 1" } } */
diff --git a/gcc/testsuite/gcc.target/arm/acle/pacbti-m-predef-3.c b/gcc/testsuite/gcc.target/arm/acle/pacbti-m-predef-3.c
new file mode 100644
index 00000000000..b94f3447ad9
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/acle/pacbti-m-predef-3.c
@@ -0,0 +1,17 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target mbranch_protection_ok } */
+/* { dg-options "-march=armv8.1-m.main+fp -mbranch-protection=pac-ret+leaf -mfloat-abi=hard --save-temps" } */
+
+#if defined (__ARM_FEATURE_BTI_DEFAULT)
+#error "Feature test macro __ARM_FEATURE_BTI_DEFAULT should be undefined."
+#endif
+
+#if !defined (__ARM_FEATURE_PAC_DEFAULT)
+#error "Feature test macro __ARM_FEATURE_PAC_DEFAULT should be defined."
+#endif
+
+/* { dg-final { scan-assembler-not "\.arch_extension pacbti" } } */
+/* { dg-final { scan-assembler "\.eabi_attribute 50, 1" } } */
+/* { dg-final { scan-assembler "\.eabi_attribute 52, 1" } } */
+/* { dg-final { scan-assembler-not "\.eabi_attribute 74" } } */
+/* { dg-final { scan-assembler "\.eabi_attribute 76, 1" } } */
diff --git a/gcc/testsuite/gcc.target/arm/acle/pacbti-m-predef-6.c b/gcc/testsuite/gcc.target/arm/acle/pacbti-m-predef-6.c
new file mode 100644
index 00000000000..ed52afc83c5
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/acle/pacbti-m-predef-6.c
@@ -0,0 +1,16 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target mbranch_protection_ok } */
+/* { dg-additional-options "-march=armv8.1-m.main+fp -mbranch-protection=bti -mfloat-abi=hard --save-temps" } */
+
+#if !defined (__ARM_FEATURE_BTI_DEFAULT)
+#error "Feature test macro __ARM_FEATURE_BTI_DEFAULT should be defined."
+#endif
+
+#if defined (__ARM_FEATURE_PAC_DEFAULT)
+#error "Feature test macro __ARM_FEATURE_PAC_DEFAULT should be undefined."
+#endif
+/* { dg-final { scan-assembler-not "\.arch_extension pacbti" } } */
+/* { dg-final { scan-assembler "\.eabi_attribute 50, 1" } } */
+/* { dg-final { scan-assembler "\.eabi_attribute 52, 1" } } */
+/* { dg-final { scan-assembler "\.eabi_attribute 74, 1" } } */
+/* { dg-final { scan-assembler-not "\.eabi_attribute 76" } } */
diff --git a/gcc/testsuite/gcc.target/arm/acle/pacbti-m-predef-7.c b/gcc/testsuite/gcc.target/arm/acle/pacbti-m-predef-7.c
new file mode 100644
index 00000000000..1b25907635e
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/acle/pacbti-m-predef-7.c
@@ -0,0 +1,17 @@
+/* { dg-do compile } */
+/* { dg-skip-if "avoid conflicting multilib options" { *-*-* } { "-marm" "-mcpu=*" } } */
+/* { dg-additional-options "-march=armv8.1-m.main+pacbti+fp --save-temps -mfloat-abi=hard" } */
+
+#if defined (__ARM_FEATURE_BTI_DEFAULT)
+#error "Feature test macro __ARM_FEATURE_BTI_DEFAULT should be undefined."
+#endif
+
+#if defined (__ARM_FEATURE_PAC_DEFAULT)
+#error "Feature test macro __ARM_FEATURE_PAC_DEFAULT should be undefined."
+#endif
+
+/* { dg-final { scan-assembler "\.arch_extension pacbti" } } */
+/* { dg-final { scan-assembler "\.eabi_attribute 50, 2" } } */
+/* { dg-final { scan-assembler "\.eabi_attribute 52, 2" } } */
+/* { dg-final { scan-assembler-not "\.eabi_attribute 74" } } */
+/* { dg-final { scan-assembler-not "\.eabi_attribute 76" } } */


^ permalink raw reply	[flat|nested] 2+ messages in thread

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