PATCH [1/4] arm: Add Tag_PAC_extension build attribute
bfd/
2021-07-06 Andrea Corallo <andrea.corallo@arm.com>
* elf32-arm.c (elf32_arm_merge_eabi_attributes): Add
'Tag_PAC_extension' case.
binutils/
2021-07-06 Andrea Corallo <andrea.corallo@arm.com>
* readelf.c (arm_attr_tag_PAC_extension): Declare.
(arm_attr_public_tags): Add 'PAC_extension' lookup.
elfcpp/
2021-07-06 Andrea Corallo <andrea.corallo@arm.com>
* arm.h: Define 'Tag_PAC_extension' enum.
gas/
2021-07-06 Andrea Corallo <andrea.corallo@arm.com>
* config/tc-arm.c (arm_convert_symbolic_attribute): Add
'Tag_PAC_extension' to the attribute_table.
include/
2021-07-06 Andrea Corallo <andrea.corallo@arm.com>
* elf/arm.h (elf_arm_reloc_type): Add 'Tag_PAC_extension'.
diff --git a/bfd/elf32-arm.c b/bfd/elf32-arm.c
index a9119c4..bb4ba89 100644
--- a/bfd/elf32-arm.c
+++ b/bfd/elf32-arm.c
@@ -14612,6 +14612,7 @@
case Tag_T2EE_use:
case Tag_MPextension_use:
case Tag_MVE_arch:
+ case Tag_PAC_extension:
/* Use the largest value specified. */
if (in_attr[i].i > out_attr[i].i)
out_attr[i].i = in_attr[i].i;
diff --git a/binutils/readelf.c b/binutils/readelf.c
index bedd389..d38a07f 100644
--- a/binutils/readelf.c
+++ b/binutils/readelf.c
@@ -16139,6 +16139,11 @@
static const char *const arm_attr_tag_MVE_arch[] =
{"No MVE", "MVE Integer only", "MVE Integer and FP"};
+static const char * arm_attr_tag_PAC_extension[] =
+ {"No PAC/AUT instructions",
+ "PAC/AUT instructions permitted in the NOP space",
+ "PAC/AUT instructions permitted in the NOP and in the non-NOP space"};
+
#define LOOKUP(id, name) \
{id, #name, 0x80 | ARRAY_SIZE(arm_attr_tag_##name), arm_attr_tag_##name}
static arm_attr_public_tag arm_attr_public_tags[] =
@@ -16179,6 +16184,7 @@
LOOKUP(44, DIV_use),
LOOKUP(46, DSP_extension),
LOOKUP(48, MVE_arch),
+ LOOKUP(50, PAC_extension),
{64, "nodefaults", 0, NULL},
{65, "also_compatible_with", 0, NULL},
LOOKUP(66, T2EE_use),
diff --git a/elfcpp/arm.h b/elfcpp/arm.h
index 1d3102f..ce682a5 100644
--- a/elfcpp/arm.h
+++ b/elfcpp/arm.h
@@ -306,6 +306,7 @@
Tag_undefined43 = 43,
Tag_DIV_use = 44,
Tag_MVE_arch = 48,
+ Tag_PAC_extension = 50,
Tag_nodefaults = 64,
Tag_also_compatible_with = 65,
Tag_T2EE_use = 66,
diff --git a/gas/config/tc-arm.c b/gas/config/tc-arm.c
index 21a2e2d..2827e29 100644
--- a/gas/config/tc-arm.c
+++ b/gas/config/tc-arm.c
@@ -33516,6 +33516,7 @@
T (Tag_Virtualization_use),
T (Tag_DSP_extension),
T (Tag_MVE_arch),
+ T (Tag_PAC_extension),
/* We deliberately do not include Tag_MPextension_use_legacy. */
#undef T
};
diff --git a/include/elf/arm.h b/include/elf/arm.h
index 5b6e403..27b6768 100644
--- a/include/elf/arm.h
+++ b/include/elf/arm.h
@@ -327,6 +327,7 @@
Tag_DIV_use,
Tag_DSP_extension = 46,
Tag_MVE_arch = 48,
+ Tag_PAC_extension = 50,
Tag_nodefaults = 64,
Tag_also_compatible_with,
Tag_T2EE_use,
