aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--docs/CompilerWriterInfo.rst4
-rw-r--r--include/llvm/Object/ELF.h186
-rw-r--r--include/llvm/Object/ELF_ARM.h339
-rw-r--r--lib/Target/ARM/ARMAsmPrinter.cpp16
-rw-r--r--lib/Target/ARM/ARMBuildAttrs.h131
-rw-r--r--test/Object/Inputs/arm-attributes.elf-armbin1128 -> 0 bytes
-rw-r--r--test/Object/Inputs/trivial-object-test.elf-armbin662 -> 0 bytes
-rw-r--r--tools/llvm-readobj/ELFDumper.cpp63
-rw-r--r--tools/llvm-readobj/ObjDumper.h1
-rw-r--r--tools/llvm-readobj/llvm-readobj.cpp6
10 files changed, 140 insertions, 606 deletions
diff --git a/docs/CompilerWriterInfo.rst b/docs/CompilerWriterInfo.rst
index 35a283ba86..e9a7bc876a 100644
--- a/docs/CompilerWriterInfo.rst
+++ b/docs/CompilerWriterInfo.rst
@@ -18,9 +18,7 @@ ARM
* `ARM documentation <http://www.arm.com/documentation/>`_ (`Processor Cores <http://www.arm.com/documentation/ARMProcessor_Cores/>`_ Cores)
-* `ELF ABI <http://infocenter.arm.com/help/topic/com.arm.doc.ihi0044e/IHI0044E_aaelf.pdf>`_
-
-* `Addenda to the ARM ABI <http://infocenter.arm.com/help/topic/com.arm.doc.ihi0045d/IHI0045D_ABI_addenda.pdf>`_
+* `ABI <http://www.arm.com/products/DevTools/ABI.html>`_
* `ARM C Language Extensions <http://infocenter.arm.com/help/topic/com.arm.doc.ihi0053a/IHI0053A_acle.pdf>`_
diff --git a/include/llvm/Object/ELF.h b/include/llvm/Object/ELF.h
index 908d8b1db1..eb2390ab5d 100644
--- a/include/llvm/Object/ELF.h
+++ b/include/llvm/Object/ELF.h
@@ -19,13 +19,11 @@
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/ADT/Triple.h"
-#include "llvm/Object/ELF_ARM.h"
#include "llvm/Object/ObjectFile.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/ELF.h"
#include "llvm/Support/Endian.h"
#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/LEB128.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/raw_ostream.h"
#include <algorithm>
@@ -603,7 +601,6 @@ private:
const Elf_Shdr *dot_gnu_version_sec; // .gnu.version
const Elf_Shdr *dot_gnu_version_r_sec; // .gnu.version_r
const Elf_Shdr *dot_gnu_version_d_sec; // .gnu.version_d
- const Elf_Shdr *dot_arm_attributes_sec; // .ARM.attributes
// Pointer to SONAME entry in dynamic string table
// This is set the first time getLoadName is called.
@@ -646,11 +643,6 @@ private:
const Elf_Shdr *getRelSection(DataRefImpl Rel) const {
return getSection(Rel.w.b);
}
- // Helper to read a single ARM attribute at the given pointer and return the
- // read pointer moved forward to the next attribute location.
- uintptr_t readARMSingleAttribute(uintptr_t ReadPtr,
- ARMBuildAttrs::ARMGenericBuildAttrInfo &Attrs,
- SmallVector<unsigned, 16> &TagSet) const;
public:
bool isRelocationHasAddend(DataRefImpl Rel) const;
@@ -846,18 +838,6 @@ public:
return v->getType() == getELFType(ELFT::TargetEndianness == support::little,
ELFT::Is64Bits);
}
-
- /// \brief Read the ARM build attributes of this object file.
- /// \param Attrs The attributes container to put the attribute values.
- /// \param TagsSet A list of attribute tags that were read.
- error_code readARMBuildAttributes(
- ARMBuildAttrs::ARMGenericBuildAttrInfo &Attrs,
- SmallVector<unsigned, 16> &TagsSet) const;
-
- /// \brief Checks if an ARM build attributes section exists.
- bool hasARMBuildAttributes() const {
- return dot_arm_attributes_sec ? true : false;
- }
};
// Iterate through the version definitions, and place each Elf_Verdef
@@ -2350,7 +2330,6 @@ ELFObjectFile<ELFT>::ELFObjectFile(MemoryBuffer *Object, error_code &ec)
, dot_gnu_version_sec(0)
, dot_gnu_version_r_sec(0)
, dot_gnu_version_d_sec(0)
- , dot_arm_attributes_sec(0)
, dt_soname(0)
{
@@ -2442,13 +2421,6 @@ ELFObjectFile<ELFT>::ELFObjectFile(MemoryBuffer *Object, error_code &ec)
dot_gnu_version_r_sec = sh;
break;
}
- case ELF::SHT_ARM_ATTRIBUTES: {
- if (dot_arm_attributes_sec != NULL)
- // FIXME: Proper error handling.
- report_fatal_error("More than one .arm.attributes section!");
- dot_arm_attributes_sec = sh;
- break;
- }
}
++sh;
}
@@ -2998,164 +2970,6 @@ static inline error_code GetELFSymbolVersion(const ObjectFile *Obj,
llvm_unreachable("Object passed to GetELFSymbolVersion() is not ELF");
}
-template<class ELFT>
-error_code ELFObjectFile<ELFT>::readARMBuildAttributes(
- ARMBuildAttrs::ARMGenericBuildAttrInfo &Attrs,
- SmallVector<unsigned, 16> &TagsSet) const {
- if (getArch() != Triple::arm)
- return object_error::invalid_file_type;
- if (!dot_arm_attributes_sec)
- return object_error::parse_failed;
-
- const char *SecStart = (const char*)base() +
- dot_arm_attributes_sec->sh_offset;
- const char *SecEnd = SecStart + dot_arm_attributes_sec->sh_size;
- char format_version = *SecStart;
- if (format_version != ARMBuildAttrs::Format_Version)
- return object_error::parse_failed;
-
- uintptr_t SSectionPtr = (uintptr_t)SecStart + 1;
- uintptr_t ReadPtr = SSectionPtr;
- // Begin reading section after format-version byte
- while (ReadPtr < (uintptr_t)SecEnd) {
- // Read a subsection, starting with: <section-length> "vendor-name"
- // For now, we only care about the "aeabi" pseudo-vendor subsection.
- uint32_t SSectionLen = *(Elf_Word*)ReadPtr;
- ReadPtr += sizeof(uint32_t);
- StringRef Vendor((char*)(ReadPtr));
- ReadPtr += Vendor.size() + 1; // Vendor string + NUL byte
-
- if (Vendor != "aeabi") {
- SSectionPtr += SSectionLen;
- ReadPtr = SSectionPtr;
- continue; //skip to the next sub-section
- }
-
- bool FoundFileTag = false;
- uintptr_t SSSectionPtr = ReadPtr;
- uint32_t SSSectionLen = *(Elf_Word*)ReadPtr;
- // Found aeabi subsection, now find the File scope tag.
- while (ReadPtr < SSectionPtr + SSectionLen) {
- unsigned n = 0;
- uint64_t Tag = decodeULEB128((uint8_t*)ReadPtr, &n);
- ReadPtr += n;
- SSSectionLen = *(Elf_Word*)ReadPtr;
- if (Tag == ARMBuildAttrs::File) {
- FoundFileTag = true;
- break;
- }
- // We only handle File scope attributes, skip ahead to the next
- // sub-subsection.
- SSSectionPtr += SSSectionLen;
- ReadPtr = SSSectionPtr;
- }
-
- if (!FoundFileTag)
- return object_error::parse_failed;
-
- ReadPtr += sizeof(uint32_t);
- while (ReadPtr < SSSectionPtr + SSSectionLen) {
- // Read any number of attributes.
- // Attributes are pairs of <uleb128, uleb128> or <uleb128, NTBS>.
- ReadPtr = readARMSingleAttribute(ReadPtr, Attrs, TagsSet);
- }
- Attrs.setValid(true);
- }
- return object_error::success;
-}
-
-#define SWITCH_ARM_ATTR_READ_ULEB(X) case ARMBuildAttrs::X: \
- UlebValue = decodeULEB128((uint8_t*)ReadPtr, &n); \
- ReadPtr += n; \
- Attrs.Tag_##X = UlebValue; \
- TagsSet.push_back(tag); \
- break;
-
-template<class ELFT>
-uintptr_t ELFObjectFile<ELFT>::readARMSingleAttribute(uintptr_t ReadPtr,
- ARMBuildAttrs::ARMGenericBuildAttrInfo &Attrs,
- SmallVector<unsigned, 16> &TagsSet) const {
- // The ABI says that tags in the range 0-63 must be handled by tools.
- unsigned n = 0;
- uint64_t tagInt = decodeULEB128((uint8_t*)ReadPtr, &n);
- ARMBuildAttrs::AttrType tag = (ARMBuildAttrs::AttrType)tagInt;
- ReadPtr += n;
- uint64_t UlebValue = 0;
- StringRef StrValue;
- switch (tag) {
- case ARMBuildAttrs::CPU_arch: // uleb128
- UlebValue = decodeULEB128((uint8_t*)ReadPtr, &n);
- ReadPtr += n;
- Attrs.Tag_CPU_arch = (ARMBuildAttrs::CPUArch)UlebValue;
- TagsSet.push_back(tag);
- break;
- case ARMBuildAttrs::CPU_raw_name: // NTBS
- StrValue = (char*)ReadPtr;
- Attrs.Tag_CPU_raw_name = StrValue;
- TagsSet.push_back(ARMBuildAttrs::CPU_raw_name);
- ReadPtr += StrValue.size() + 1;
- break;
- case ARMBuildAttrs::CPU_name: //NTBS
- StrValue = (char*)ReadPtr;
- Attrs.Tag_CPU_name = StrValue;
- TagsSet.push_back(ARMBuildAttrs::CPU_name);
- ReadPtr += StrValue.size() + 1;
- break;
- case ARMBuildAttrs::CPU_arch_profile: // uleb128
- UlebValue = decodeULEB128((uint8_t*)ReadPtr, &n);
- ReadPtr += n;
- Attrs.Tag_CPU_arch_profile =
- (ARMBuildAttrs::CPUArchProfile)UlebValue;
- TagsSet.push_back(tag);
- break;
- SWITCH_ARM_ATTR_READ_ULEB(ARM_ISA_use)
- SWITCH_ARM_ATTR_READ_ULEB(THUMB_ISA_use)
- SWITCH_ARM_ATTR_READ_ULEB(FP_arch)
- SWITCH_ARM_ATTR_READ_ULEB(WMMX_arch)
- SWITCH_ARM_ATTR_READ_ULEB(Advanced_SIMD_arch)
- SWITCH_ARM_ATTR_READ_ULEB(FP_HP_extension)
- SWITCH_ARM_ATTR_READ_ULEB(CPU_unaligned_access)
- SWITCH_ARM_ATTR_READ_ULEB(MPextension_use)
- SWITCH_ARM_ATTR_READ_ULEB(DIV_use)
- SWITCH_ARM_ATTR_READ_ULEB(T2EE_use)
- SWITCH_ARM_ATTR_READ_ULEB(Virtualization_use)
- SWITCH_ARM_ATTR_READ_ULEB(ABI_optimization_goals)
- SWITCH_ARM_ATTR_READ_ULEB(ABI_FP_optimization_goals)
- SWITCH_ARM_ATTR_READ_ULEB(PCS_config)
- SWITCH_ARM_ATTR_READ_ULEB(ABI_PCS_R9_use)
- SWITCH_ARM_ATTR_READ_ULEB(ABI_PCS_RW_data)
- SWITCH_ARM_ATTR_READ_ULEB(ABI_PCS_RO_data)
- SWITCH_ARM_ATTR_READ_ULEB(ABI_PCS_GOT_use)
- SWITCH_ARM_ATTR_READ_ULEB(ABI_PCS_wchar_t)
- SWITCH_ARM_ATTR_READ_ULEB(ABI_enum_size)
- SWITCH_ARM_ATTR_READ_ULEB(ABI_align8_needed)
- SWITCH_ARM_ATTR_READ_ULEB(ABI_align8_preserved)
- SWITCH_ARM_ATTR_READ_ULEB(ABI_FP_rounding)
- SWITCH_ARM_ATTR_READ_ULEB(ABI_FP_denormal)
- SWITCH_ARM_ATTR_READ_ULEB(ABI_FP_number_model)
- SWITCH_ARM_ATTR_READ_ULEB(ABI_FP_exceptions)
- SWITCH_ARM_ATTR_READ_ULEB(ABI_FP_user_exceptions)
- SWITCH_ARM_ATTR_READ_ULEB(ABI_HardFP_use)
- SWITCH_ARM_ATTR_READ_ULEB(ABI_VFP_args)
- default:
- // Unhandled build attribute tag, according to the spec we should be able
- // to infer the type of the value from (tag % 2) and skip over it.
- if (tag & 0x1) {
- // Value should be a null terminated byte string
- StrValue = (char*)ReadPtr;
- ReadPtr += StrValue.size() + 1;
- } else {
- // Value should be a uleb128
- UlebValue = decodeULEB128((uint8_t*)ReadPtr, &n);
- ReadPtr += n;
- }
- break;
- }
- return ReadPtr;
-}
-#undef SWITCH_ARM_ATTR_READ_ULEB
-
-
/// This function returns the hash value for a symbol in the .dynsym section
/// Name of the API remains consistent as specified in the libelf
/// REF : http://www.sco.com/developers/gabi/latest/ch5.dynamic.html#hash
diff --git a/include/llvm/Object/ELF_ARM.h b/include/llvm/Object/ELF_ARM.h
deleted file mode 100644
index d1fab2aa20..0000000000
--- a/include/llvm/Object/ELF_ARM.h
+++ /dev/null
@@ -1,339 +0,0 @@
-//===-- ELF_ARM.h - ARM ELF ABI ---------------------------------*- C++ -*-===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file contains enumerations and support routines for ARM build attributes
-// as defined in ARM ABI addenda document (ABI release 2.08).
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_OBJECT_ELF_ARM_H
-#define LLVM_OBJECT_ELF_ARM_H
-
-#include "llvm/ADT/SmallVector.h"
-#include "llvm/Support/Endian.h"
-
-namespace llvm {
-
-namespace ARMBuildAttrs {
-enum SpecialAttr {
- // This is for the .cpu asm attr. It translates into one or more
- // AttrType (below) entries in the .ARM.attributes section in the ELF.
- SEL_CPU
-};
-
-enum AttrType {
- // Rest correspond to ELF/.ARM.attributes
- File = 1,
- Section = 2,
- Symbol = 3,
- CPU_raw_name = 4,
- CPU_name = 5,
- CPU_arch = 6,
- CPU_arch_profile = 7,
- ARM_ISA_use = 8,
- THUMB_ISA_use = 9,
- FP_arch = 10,
- WMMX_arch = 11,
- Advanced_SIMD_arch = 12,
- PCS_config = 13,
- ABI_PCS_R9_use = 14,
- ABI_PCS_RW_data = 15,
- ABI_PCS_RO_data = 16,
- ABI_PCS_GOT_use = 17,
- ABI_PCS_wchar_t = 18,
- ABI_FP_rounding = 19,
- ABI_FP_denormal = 20,
- ABI_FP_exceptions = 21,
- ABI_FP_user_exceptions = 22,
- ABI_FP_number_model = 23,
- ABI_align8_needed = 24,
- ABI_align8_preserved = 25,
- ABI_enum_size = 26,
- ABI_HardFP_use = 27,
- ABI_VFP_args = 28,
- ABI_WMMX_args = 29,
- ABI_optimization_goals = 30,
- ABI_FP_optimization_goals = 31,
- compatibility = 32,
- CPU_unaligned_access = 34,
- FP_HP_extension = 36,
- ABI_FP_16bit_format = 38,
- MPextension_use = 42, // was 70, 2.08 ABI
- DIV_use = 44,
- nodefaults = 64,
- also_compatible_with = 65,
- T2EE_use = 66,
- conformance = 67,
- Virtualization_use = 68,
- MPextension_use_old = 70
-};
-
-// Magic numbers for .ARM.attributes
-enum AttrMagic {
- Format_Version = 0x41
-};
-
-// Legal Values for CPU_arch, (=6), uleb128
-enum CPUArch {
- Pre_v4 = 0,
- v4 = 1, // e.g. SA110
- v4T = 2, // e.g. ARM7TDMI
- v5T = 3, // e.g. ARM9TDMI
- v5TE = 4, // e.g. ARM946E_S
- v5TEJ = 5, // e.g. ARM926EJ_S
- v6 = 6, // e.g. ARM1136J_S
- v6KZ = 7, // e.g. ARM1176JZ_S
- v6T2 = 8, // e.g. ARM1156T2F_S
- v6K = 9, // e.g. ARM1136J_S
- v7 = 10, // e.g. Cortex A8, Cortex M3
- v6_M = 11, // e.g. Cortex M1
- v6S_M = 12, // v6_M with the System extensions
- v7E_M = 13, // v7_M with DSP extensions
- v8
-};
-
-enum CPUArchProfile { // (=7), uleb128
- Not_Applicable = 0, // pre v7, or cross-profile code
- ApplicationProfile = (0x41), // 'A' (e.g. for Cortex A8)
- RealTimeProfile = (0x52), // 'R' (e.g. for Cortex R4)
- MicroControllerProfile = (0x4D), // 'M' (e.g. for Cortex M3)
- SystemProfile = (0x53) // 'S' Application or real-time profile
-};
-
-// The following have a lot of common use cases
-enum {
- //ARMISAUse (=8), uleb128 and THUMBISAUse (=9), uleb128
- Not_Allowed = 0,
- Allowed = 1
-};
-
-enum {
- // FP_arch (=10), uleb128 (formerly Tag_VFP_arch = 10)
- AllowFPv2 = 2, // v2 FP ISA permitted (implies use of the v1 FP ISA)
- AllowFPv3A = 3, // v3 FP ISA permitted (implies use of the v2 FP ISA)
- AllowFPv3B = 4, // v3 FP ISA permitted, but only D0-D15, S0-S31
- AllowFPv4A = 5, // v4 FP ISA permitted (implies use of v3 FP ISA)
- AllowFPv4B = 6, // v4 FP ISA was permitted, but only D0-D15, S0-S31
- AllowV8FP = 7, // ARMv8-A FP ISA permitted
- AllowV8FPB = 8 // ARMv8-A FP ISA permitted, but only D0-D15, S0-D31
-};
-
-enum {
- // Tag_THUMB_ISA_use, (=9), uleb128
- AllowThumb32 = 2 // 32-bit Thumb (implies 16-bit instructions)
-};
-
-enum {
- // Tag_WMMX_arch, (=11), uleb128
- AllowWMMXv1 = 1, // The user permitted this entity to use WMMX v1
- AllowWMMXv2 = 2 // The user permitted this entity to use WMMX v2
-};
-
-enum {
- // Tag_ABI_FP_denormal, (=20), uleb128
- MightFlushToZero = 0, // Denormal numbers might be flushed to (+) zero
- IEEE754Denormal = 1 , // Depends on IEEE 754 denormal numbers
- PreserveFPSign = 2 // Sign when flushed-to-zero is preserved
-};
-
-enum {
- // Tag_ABI_FP_number_model, (=23), uleb128
- AllowNormal = 1, // Use IEEE 754 format normal numbers only
- AllowRTABI = 2, // numbers, infinities, and one quiet NaN (see [RTABI])
- AllowIEE754 = 3 // this code to use all the IEEE 754-defined FP encodings
-};
-
-enum {
- // Tag_ABI_FP_rounding, (=19), uleb128
- FPRoundingNearest = 0, // Use the IEEE 754 round to nearest rounding mode
- FPRoundingRuntime = 1 // Choose the IEEE 754 rounding mode at run time
-};
-
-enum {
- // Tag_DIV_use, (=44), uleb128
- AllowDIVThumb = 0, // Allow SDIV, UDIV on Thumb ISA, e.g. Cortex R4 or M3
- NotAllowedDIV = 1, // Disallow SDIV and UDIV
- AllowDIVv7a = 2 // Allow SDIV, UDIV on v7-a with integer div extension
-};
-
-enum {
- // Tag_Virtualization_use, (=42), uleb128
- TrustZone = 1, // Use of the TrustZone extension was permitted
- VirtExts = 2, // Use of virtualization extensions (HVC, ERET) permitted
- TrustZoneVirtExts = 3 // TrustZone and virtualization extensions permitted
-};
-
-enum {
- // Tag_PCS_config, (=13), uleb128
- PCS_none = 0, // No standard configuration used, or no information recorded
- PCS_bare = 1, // Bare platform configuration
- PCS_linux = 2, // Linux application configuration
- PCS_linux_dso = 3, // Linux DSO configuration
- PCS_palm_2004 = 4, // Palm OS 2004 configuration
- PCS_palm_future = 5, // Reserved to future Palm OS configuration
- PCS_symbian_2004 = 6, // Symbian OS 2004 configuration
- PCS_symbian_future = 7 // Reserved to future Symbian OS configuration
-};
-
-enum {
- // Tag_ABI_PCS_R9_use, (=14), uleb128
- PCS_R9_normal = 0, // R9 used as V6 (just another callee-saved register,
- // implied by omitting the tag)
- PCS_R9_SB = 1, // R9 used as SB, a global Static Base register
- PCS_R9_TLS = 2, // R9 used as a Thread Local Storage (TLS) pointer
- PCS_R9_none = 3 // R9 not used at all by code associated with
- // the attributed entity.
-};
-
-enum {
- // Tag_ABI_PCS_RW_data, (=15), uleb128
- PCS_RW_data_abs = 0, // RW static data permitted to be addressed absolutely
- PCS_RW_data_pcrel = 1, // RW static data was only permitted to be
- // addressed PC-relative.
- PCS_RW_data_sbrel = 2, // RW static data was only permitted to be addressed
- // SB-relative.
- PCS_RW_data_none = 3 // No permission to use RW static data
-};
-
-enum {
- // Tag_ABI_PCS_RO_data, (=16), uleb128
- PCS_RO_data_abs = 0, // RO static data permitted to be addressed absolutely
- PCS_RO_data_pcrel = 1, // RO static data was only permitted to be
- // addressed PC-relative.
- PCS_RO_data_none = 2 // No permission to use RO static data
-};
-
-enum {
- // Tag_ABI_PCS_GOT_use, (=17), uleb128
- PCS_GOT_none = 0, // No permission to import static data
- PCS_GOT_direct = 1, // Permission to address imported data directly
- PCS_GOT_indirect = 2 // The user permitted this entity to address imported
- // data indirectly (e.g. via a GOT)
-};
-
-enum {
- // Tag_ABI_PCS_wchar_t, (=18), uleb128
- PCS_wchar_t_disallowed = 0, // The user prohibited the use of wchar_t
- PCS_wchar_t_2 = 2, // The user intended the size of wchar_t to be 2
- PCS_wchar_t_4 = 4 // The user intended the size of wchar_t to be 4
-};
-
-enum {
- // Tag_ABI_enum_size, (=26), uleb128
- PCS_enum_size = 1, // Enum values occupy the smallest container big enough
- // to hold all their values.
- PCS_enum_size_32 = 2, // The user intended Enum containers to be 32-bit
- PCS_enum_size_abi32 = 3 // The user intended that every enumeration visible
- // across an ABI-complying interface contains a value needing 32 bits to
- // encode it; other enums can be containerized.
-};
-
-enum {
- // Tag_ABI_align_needed, (=24), uleb128
- PCS_Align_needed_disallowed = 0, // The user did not permit code to depend
- // the alignment of 8-byte data or data with extended (>8-byte) alignment.
- PCS_Align_needed_8 = 1, // Code was permitted to depend on the 8-byte
- // alignment of 8-byte data items.
- PCS_Align_needed_4 = 2, // Code was permitted to depend on the 4-byte
- // alignment of 8-byte data items.
- PCS_Align_needed_res = 3 // Reserved
- // OR: n (in 4..12) Code was permitted to depend on the 8-byte alignment of
- // 8-byte data items and the alignment of data items having up to 2^n byte
- // extended alignment.
-};
-
-enum {
- // Tag_ABI_align_preserved, (=25), uleb128
- PCS_Align_preserved_none = 0, // The user did not require code to preserve
- // 8-byte alignment of 8-byte data objects.
- PCS_Align_preserved_8 = 1, // Code was required to preserve 8-byte alignment
- // of 8-byte data objects.
- PCS_Align_preserved_8sp = 2, // Code was required to preserve 8-byte
- // alignment of 8-byte data objects and to ensure (SP MOD 8) = 0 at all
- // instruction boundaries (not just at function calls).
- PCS_Align_preserved_res = 3 // Reserved
- // OR: n (in 4..12) Code was required to preserve the alignments of case 2
- // and the alignment of data items having up to 2^n byte extended alignment
-};
-
-enum {
- // Tag_ABI_HardFP_use, (=27), uleb128
- HardFPImplied = 0, // FP use should be implied by Tag_FP_arch
- HardFP_SP_VFP = 1, // Use only SP FP instructions
- HardFP_Reserved = 2, // Reserved
- HardFP_ImpliedDup = 3 // Deprecated duplicate of the default HardFPImplied
-};
-
-enum {
- // Tag_ABI_VFP_args, (=28), uleb128
- VFPArgs_base = 0, // FP parameter/result passing using AAPCS, base variant
- VFPArgs_VFP = 1, // FP parameter/result passing using AAPCS, VFP variant
- VFPArgs_toolchain = 2, // FP parameter/result passing to conform to tool
- // chain-specific conventions
- VFPArgs_baseVFP = 3 // FP parameter/result passing using both base and VFP
- //variants. Did not permit non-variadic functions to pass FP params/results.
-};
-
-/// Contains build ARM aeabi attribute values.
-class ARMGenericBuildAttrInfo {
-public:
- ARMGenericBuildAttrInfo()
- : Valid(false) {}
-
- CPUArch Tag_CPU_arch;
- CPUArchProfile Tag_CPU_arch_profile;
- std::string Tag_CPU_raw_name;
- std::string Tag_CPU_name;
- unsigned Tag_ARM_ISA_use;
- unsigned Tag_THUMB_ISA_use;
- unsigned Tag_FP_arch;
- unsigned Tag_WMMX_arch;
- unsigned Tag_Advanced_SIMD_arch;
- unsigned Tag_FP_HP_extension;
- unsigned Tag_CPU_unaligned_access;
- unsigned Tag_MPextension_use;
- unsigned Tag_DIV_use;
- unsigned Tag_T2EE_use;
- unsigned Tag_Virtualization_use;
- unsigned Tag_ABI_optimization_goals;
- unsigned Tag_ABI_FP_optimization_goals;
-
- //PCS/ABI attributes
- unsigned Tag_PCS_config;
- unsigned Tag_ABI_PCS_R9_use;
- unsigned Tag_ABI_PCS_RW_data;
- unsigned Tag_ABI_PCS_RO_data;
- unsigned Tag_ABI_PCS_GOT_use;
- unsigned Tag_ABI_PCS_wchar_t;
- unsigned Tag_ABI_enum_size;
- unsigned Tag_ABI_align8_needed;
- unsigned Tag_ABI_align8_preserved;
-
- //FP
- unsigned Tag_ABI_FP_rounding;
- unsigned Tag_ABI_FP_denormal;
- unsigned Tag_ABI_FP_number_model;
- unsigned Tag_ABI_FP_exceptions;
- unsigned Tag_ABI_FP_user_exceptions;
- unsigned Tag_ABI_HardFP_use;
- unsigned Tag_ABI_VFP_args;
-
-private:
- bool Valid;
-
-public:
- /// Indicates whether this instance contains valid or default values.
- bool isValid() { return Valid; }
- void setValid(bool v) { Valid = v; }
-};
-
-}
-} // llvm
-
-#endif // LLVM_OBJECT_ELF_ARM_H
diff --git a/lib/Target/ARM/ARMAsmPrinter.cpp b/lib/Target/ARM/ARMAsmPrinter.cpp
index 2d5dca5c04..13ec208793 100644
--- a/lib/Target/ARM/ARMAsmPrinter.cpp
+++ b/lib/Target/ARM/ARMAsmPrinter.cpp
@@ -15,6 +15,7 @@
#define DEBUG_TYPE "asm-printer"
#include "ARMAsmPrinter.h"
#include "ARM.h"
+#include "ARMBuildAttrs.h"
#include "ARMConstantPoolValue.h"
#include "ARMMachineFunctionInfo.h"
#include "ARMTargetMachine.h"
@@ -43,7 +44,6 @@
#include "llvm/MC/MCSectionMachO.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCSymbol.h"
-#include "llvm/Object/ELF_ARM.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ELF.h"
@@ -90,7 +90,7 @@ namespace {
break;
/* GAS requires .fpu to be emitted regardless of EABI attribute */
case ARMBuildAttrs::Advanced_SIMD_arch:
- case ARMBuildAttrs::FP_arch:
+ case ARMBuildAttrs::VFP_arch:
Streamer.EmitRawText(StringRef("\t.fpu ") + String.lower());
break;
}
@@ -798,24 +798,24 @@ void ARMAsmPrinter::emitAttributes() {
/* VFPv4 + .fpu */
if (Subtarget->hasVFP4()) {
- AttrEmitter->EmitAttribute(ARMBuildAttrs::FP_arch,
+ AttrEmitter->EmitAttribute(ARMBuildAttrs::VFP_arch,
ARMBuildAttrs::AllowFPv4A);
if (emitFPU)
- AttrEmitter->EmitTextAttribute(ARMBuildAttrs::FP_arch, "vfpv4");
+ AttrEmitter->EmitTextAttribute(ARMBuildAttrs::VFP_arch, "vfpv4");
/* VFPv3 + .fpu */
} else if (Subtarget->hasVFP3()) {
- AttrEmitter->EmitAttribute(ARMBuildAttrs::FP_arch,
+ AttrEmitter->EmitAttribute(ARMBuildAttrs::VFP_arch,
ARMBuildAttrs::AllowFPv3A);
if (emitFPU)
- AttrEmitter->EmitTextAttribute(ARMBuildAttrs::FP_arch, "vfpv3");
+ AttrEmitter->EmitTextAttribute(ARMBuildAttrs::VFP_arch, "vfpv3");
/* VFPv2 + .fpu */
} else if (Subtarget->hasVFP2()) {
- AttrEmitter->EmitAttribute(ARMBuildAttrs::FP_arch,
+ AttrEmitter->EmitAttribute(ARMBuildAttrs::VFP_arch,
ARMBuildAttrs::AllowFPv2);
if (emitFPU)
- AttrEmitter->EmitTextAttribute(ARMBuildAttrs::FP_arch, "vfpv2");
+ AttrEmitter->EmitTextAttribute(ARMBuildAttrs::VFP_arch, "vfpv2");
}
/* TODO: ARMBuildAttrs::Allowed is not completely accurate,
diff --git a/lib/Target/ARM/ARMBuildAttrs.h b/lib/Target/ARM/ARMBuildAttrs.h
new file mode 100644
index 0000000000..11bd6a4a8d
--- /dev/null
+++ b/lib/Target/ARM/ARMBuildAttrs.h
@@ -0,0 +1,131 @@
+//===-- ARMBuildAttrs.h - ARM Build Attributes ------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file contains enumerations and support routines for ARM build attributes
+// as defined in ARM ABI addenda document (ABI release 2.08).
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef __TARGET_ARMBUILDATTRS_H__
+#define __TARGET_ARMBUILDATTRS_H__
+
+namespace ARMBuildAttrs {
+ enum SpecialAttr {
+ // This is for the .cpu asm attr. It translates into one or more
+ // AttrType (below) entries in the .ARM.attributes section in the ELF.
+ SEL_CPU
+ };
+
+ enum AttrType {
+ // Rest correspond to ELF/.ARM.attributes
+ File = 1,
+ Section = 2,
+ Symbol = 3,
+ CPU_raw_name = 4,
+ CPU_name = 5,
+ CPU_arch = 6,
+ CPU_arch_profile = 7,
+ ARM_ISA_use = 8,
+ THUMB_ISA_use = 9,
+ VFP_arch = 10,
+ WMMX_arch = 11,
+ Advanced_SIMD_arch = 12,
+ PCS_config = 13,
+ ABI_PCS_R9_use = 14,
+ ABI_PCS_RW_data = 15,
+ ABI_PCS_RO_data = 16,
+ ABI_PCS_GOT_use = 17,
+ ABI_PCS_wchar_t = 18,
+ ABI_FP_rounding = 19,
+ ABI_FP_denormal = 20,
+ ABI_FP_exceptions = 21,
+ ABI_FP_user_exceptions = 22,
+ ABI_FP_number_model = 23,
+ ABI_align8_needed = 24,
+ ABI_align8_preserved = 25,
+ ABI_enum_size = 26,
+ ABI_HardFP_use = 27,
+ ABI_VFP_args = 28,
+ ABI_WMMX_args = 29,
+ ABI_optimization_goals = 30,
+ ABI_FP_optimization_goals = 31,
+ compatibility = 32,
+ CPU_unaligned_access = 34,
+ VFP_HP_extension = 36,
+ ABI_FP_16bit_format = 38,
+ MPextension_use = 42, // was 70, 2.08 ABI
+ DIV_use = 44,
+ nodefaults = 64,
+ also_compatible_with = 65,
+ T2EE_use = 66,
+ conformance = 67,
+ Virtualization_use = 68,
+ MPextension_use_old = 70
+ };
+
+ // Magic numbers for .ARM.attributes
+ enum AttrMagic {
+ Format_Version = 0x41
+ };
+
+ // Legal Values for CPU_arch, (=6), uleb128
+ enum CPUArch {
+ Pre_v4 = 0,
+ v4 = 1, // e.g. SA110
+ v4T = 2, // e.g. ARM7TDMI
+ v5T = 3, // e.g. ARM9TDMI
+ v5TE = 4, // e.g. ARM946E_S
+ v5TEJ = 5, // e.g. ARM926EJ_S
+ v6 = 6, // e.g. ARM1136J_S
+ v6KZ = 7, // e.g. ARM1176JZ_S
+ v6T2 = 8, // e.g. ARM1156T2F_S
+ v6K = 9, // e.g. ARM1136J_S
+ v7 = 10, // e.g. Cortex A8, Cortex M3
+ v6_M = 11, // e.g. Cortex M1
+ v6S_M = 12, // v6_M with the System extensions
+ v7E_M = 13 // v7_M with DSP extensions
+ };
+
+ enum CPUArchProfile { // (=7), uleb128
+ Not_Applicable = 0, // pre v7, or cross-profile code
+ ApplicationProfile = (0x41), // 'A' (e.g. for Cortex A8)
+ RealTimeProfile = (0x52), // 'R' (e.g. for Cortex R4)
+ MicroControllerProfile = (0x4D), // 'M' (e.g. for Cortex M3)
+ SystemProfile = (0x53) // 'S' Application or real-time profile
+ };
+
+ // The following have a lot of common use cases
+ enum {
+ //ARMISAUse (=8), uleb128 and THUMBISAUse (=9), uleb128
+ Not_Allowed = 0,
+ Allowed = 1,
+
+ // FP_arch (=10), uleb128 (formerly Tag_VFP_arch = 10)
+ AllowFPv2 = 2, // v2 FP ISA permitted (implies use of the v1 FP ISA)
+ AllowFPv3A = 3, // v3 FP ISA permitted (implies use of the v2 FP ISA)
+ AllowFPv3B = 4, // v3 FP ISA permitted, but only D0-D15, S0-S31
+ AllowFPv4A = 5, // v4 FP ISA permitted (implies use of v3 FP ISA)
+ AllowFPv4B = 6, // v4 FP ISA was permitted, but only D0-D15, S0-S31
+
+ // Tag_WMMX_arch, (=11), uleb128
+ AllowThumb32 = 2, // 32-bit Thumb (implies 16-bit instructions)
+
+ // Tag_WMMX_arch, (=11), uleb128
+ AllowWMMXv1 = 2, // The user permitted this entity to use WMMX v2
+
+ // Tag_ABI_FP_denormal, (=20), uleb128
+ PreserveFPSign = 2, // sign when flushed-to-zero is preserved
+
+ // Tag_ABI_FP_number_model, (=23), uleb128
+ AllowRTABI = 2, // numbers, infinities, and one quiet NaN (see [RTABI])
+ AllowIEE754 = 3 // this code to use all the IEEE 754-defined FP encodings
+ };
+}
+
+#endif // __TARGET_ARMBUILDATTRS_H__
diff --git a/test/Object/Inputs/arm-attributes.elf-arm b/test/Object/Inputs/arm-attributes.elf-arm
deleted file mode 100644
index 69855d6ea0..0000000000
--- a/test/Object/Inputs/arm-attributes.elf-arm
+++ /dev/null
Binary files differ
diff --git a/test/Object/Inputs/trivial-object-test.elf-arm b/test/Object/Inputs/trivial-object-test.elf-arm
deleted file mode 100644
index adfe96ca6a..0000000000
--- a/test/Object/Inputs/trivial-object-test.elf-arm
+++ /dev/null
Binary files differ
diff --git a/tools/llvm-readobj/ELFDumper.cpp b/tools/llvm-readobj/ELFDumper.cpp
index 6fa9026399..ea1b83f32f 100644
--- a/tools/llvm-readobj/ELFDumper.cpp
+++ b/tools/llvm-readobj/ELFDumper.cpp
@@ -51,7 +51,6 @@ public:
virtual void printDynamicTable() LLVM_OVERRIDE;
virtual void printNeededLibraries() LLVM_OVERRIDE;
virtual void printProgramHeaders() LLVM_OVERRIDE;
- virtual void printARMBuildAttributes() LLVM_OVERRIDE;
private:
typedef ELFObjectFile<ELFT> ELFO;
@@ -859,65 +858,3 @@ void ELFDumper<ELFT>::printProgramHeaders() {
W.printNumber("Alignment", PI->p_align);
}
}
-
-#define LLVM_READOBJ_ARMATTR_NUMCASE(X) case ARMBuildAttrs::X: \
- W.printNumber(" Tag_" #X, BuildAttrs.Tag_##X); \
- break; \
-
-#define LLVM_READOBJ_ARMATTR_STRCASE(X) case ARMBuildAttrs::X: \
- W.printString(" Tag_" #X, BuildAttrs.Tag_##X); \
- break; \
-
-template<class ELFT>
-void ELFDumper<ELFT>::printARMBuildAttributes() {
- if (Obj->getArch() != Triple::arm || !Obj->hasARMBuildAttributes())
- return;
- ARMBuildAttrs::ARMGenericBuildAttrInfo BuildAttrs;
- SmallVector<unsigned, 16> AttrsRead;
- error_code EC = Obj->readARMBuildAttributes(BuildAttrs, AttrsRead);
- if (error(EC))
- return;
-
- DictScope D(W, "ARMBuildAttributes");
-
- for (SmallVector<unsigned, 16>::iterator I = AttrsRead.begin(),
- E = AttrsRead.end(); I != E; ++I) {
- switch (*I) {
- LLVM_READOBJ_ARMATTR_STRCASE(CPU_name)
- LLVM_READOBJ_ARMATTR_STRCASE(CPU_raw_name)
- LLVM_READOBJ_ARMATTR_NUMCASE(CPU_arch)
- LLVM_READOBJ_ARMATTR_NUMCASE(CPU_arch_profile)
- LLVM_READOBJ_ARMATTR_NUMCASE(ARM_ISA_use)
- LLVM_READOBJ_ARMATTR_NUMCASE(THUMB_ISA_use)
- LLVM_READOBJ_ARMATTR_NUMCASE(FP_arch)
- LLVM_READOBJ_ARMATTR_NUMCASE(WMMX_arch)
- LLVM_READOBJ_ARMATTR_NUMCASE(Advanced_SIMD_arch)
- LLVM_READOBJ_ARMATTR_NUMCASE(PCS_config)
- LLVM_READOBJ_ARMATTR_NUMCASE(ABI_PCS_R9_use)
- LLVM_READOBJ_ARMATTR_NUMCASE(ABI_PCS_RW_data)
- LLVM_READOBJ_ARMATTR_NUMCASE(ABI_PCS_RO_data)
- LLVM_READOBJ_ARMATTR_NUMCASE(ABI_PCS_GOT_use)
- LLVM_READOBJ_ARMATTR_NUMCASE(ABI_PCS_wchar_t)
- LLVM_READOBJ_ARMATTR_NUMCASE(ABI_FP_rounding)
- LLVM_READOBJ_ARMATTR_NUMCASE(ABI_FP_denormal)
- LLVM_READOBJ_ARMATTR_NUMCASE(ABI_FP_exceptions)
- LLVM_READOBJ_ARMATTR_NUMCASE(ABI_FP_user_exceptions)
- LLVM_READOBJ_ARMATTR_NUMCASE(ABI_FP_number_model)
- LLVM_READOBJ_ARMATTR_NUMCASE(ABI_align8_needed)
- LLVM_READOBJ_ARMATTR_NUMCASE(ABI_align8_preserved)
- LLVM_READOBJ_ARMATTR_NUMCASE(ABI_enum_size)
- LLVM_READOBJ_ARMATTR_NUMCASE(ABI_HardFP_use)
- LLVM_READOBJ_ARMATTR_NUMCASE(ABI_VFP_args)
- LLVM_READOBJ_ARMATTR_NUMCASE(CPU_unaligned_access)
- LLVM_READOBJ_ARMATTR_NUMCASE(FP_HP_extension)
- LLVM_READOBJ_ARMATTR_NUMCASE(MPextension_use)
- LLVM_READOBJ_ARMATTR_NUMCASE(DIV_use)
- LLVM_READOBJ_ARMATTR_NUMCASE(T2EE_use)
- LLVM_READOBJ_ARMATTR_NUMCASE(Virtualization_use)
- LLVM_READOBJ_ARMATTR_NUMCASE(ABI_optimization_goals)
- LLVM_READOBJ_ARMATTR_NUMCASE(ABI_FP_optimization_goals)
- default:
- break;
- }
- }
-}
diff --git a/tools/llvm-readobj/ObjDumper.h b/tools/llvm-readobj/ObjDumper.h
index 9a8f0c157a..6918e28cb9 100644
--- a/tools/llvm-readobj/ObjDumper.h
+++ b/tools/llvm-readobj/ObjDumper.h
@@ -39,7 +39,6 @@ public:
virtual void printDynamicTable() { }
virtual void printNeededLibraries() { }
virtual void printProgramHeaders() { }
- virtual void printARMBuildAttributes() { }
protected:
StreamWriter& W;
diff --git a/tools/llvm-readobj/llvm-readobj.cpp b/tools/llvm-readobj/llvm-readobj.cpp
index d5eb85429c..2e95b6b551 100644
--- a/tools/llvm-readobj/llvm-readobj.cpp
+++ b/tools/llvm-readobj/llvm-readobj.cpp
@@ -128,10 +128,6 @@ namespace opts {
// -expand-relocs
cl::opt<bool> ExpandRelocs("expand-relocs",
cl::desc("Expand each shown relocation to multiple lines"));
-
- // -arm-buildattrs
- cl::opt<bool> ArmBuildAttrs("arm-buildattrs",
- cl::desc("Display ARM ELF build attributes"));
} // namespace opts
namespace llvm {
@@ -225,8 +221,6 @@ static void dumpObject(const ObjectFile *Obj) {
Dumper->printNeededLibraries();
if (opts::ProgramHeaders)
Dumper->printProgramHeaders();
- if (opts::ArmBuildAttrs)
- Dumper->printARMBuildAttributes();
}
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-11-22 07:04:29 +0000