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[Platform] Remove Kalimba Platform

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This patch removes the Kalimba platform. For more information please
refer to the corresponding thread on the mailing list.

http://lists.llvm.org/pipermail/lldb-dev/2019-March/014921.html

llvm-svn: 357086
This commit is contained in:
Jonas Devlieghere
2019-03-27 16:23:50 +00:00
parent a194656fa2
commit f8819bd510
11 changed files with 10 additions and 380 deletions
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73
lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp
View File

@@ -57,7 +57,6 @@ const char *const LLDB_NT_OWNER_GNU = "GNU";
const char *const LLDB_NT_OWNER_NETBSD = "NetBSD";
const char *const LLDB_NT_OWNER_NETBSDCORE = "NetBSD-CORE";
const char *const LLDB_NT_OWNER_OPENBSD = "OpenBSD";
const char *const LLDB_NT_OWNER_CSR = "csr";
const char *const LLDB_NT_OWNER_ANDROID = "Android";
const char *const LLDB_NT_OWNER_CORE = "CORE";
const char *const LLDB_NT_OWNER_LINUX = "LINUX";
@@ -274,27 +273,6 @@ bool ELFNote::Parse(const DataExtractor &data, lldb::offset_t *offset) {
return true;
}
static uint32_t kalimbaVariantFromElfFlags(const elf::elf_word e_flags) {
const uint32_t dsp_rev = e_flags & 0xFF;
uint32_t kal_arch_variant = LLDB_INVALID_CPUTYPE;
switch (dsp_rev) {
// TODO(mg11) Support more variants
case 10:
kal_arch_variant = llvm::Triple::KalimbaSubArch_v3;
break;
case 14:
kal_arch_variant = llvm::Triple::KalimbaSubArch_v4;
break;
case 17:
case 20:
kal_arch_variant = llvm::Triple::KalimbaSubArch_v5;
break;
default:
break;
}
return kal_arch_variant;
}
static uint32_t mipsVariantFromElfFlags (const elf::ELFHeader &header) {
const uint32_t mips_arch = header.e_flags & llvm::ELF::EF_MIPS_ARCH;
uint32_t endian = header.e_ident[EI_DATA];
@@ -352,32 +330,7 @@ static uint32_t subTypeFromElfHeader(const elf::ELFHeader &header) {
if (header.e_machine == llvm::ELF::EM_MIPS)
return mipsVariantFromElfFlags(header);
return llvm::ELF::EM_CSR_KALIMBA == header.e_machine
? kalimbaVariantFromElfFlags(header.e_flags)
: LLDB_INVALID_CPUTYPE;
}
//! The kalimba toolchain identifies a code section as being
//! one with the SHT_PROGBITS set in the section sh_type and the top
//! bit in the 32-bit address field set.
static lldb::SectionType
kalimbaSectionType(const elf::ELFHeader &header,
const elf::ELFSectionHeader &sect_hdr) {
if (llvm::ELF::EM_CSR_KALIMBA != header.e_machine) {
return eSectionTypeOther;
}
if (llvm::ELF::SHT_NOBITS == sect_hdr.sh_type) {
return eSectionTypeZeroFill;
}
if (llvm::ELF::SHT_PROGBITS == sect_hdr.sh_type) {
const lldb::addr_t KAL_CODE_BIT = 1 << 31;
return KAL_CODE_BIT & sect_hdr.sh_addr ? eSectionTypeCode
: eSectionTypeData;
}
return eSectionTypeOther;
return LLDB_INVALID_CPUTYPE;
}
// Arbitrary constant used as UUID prefix for core files.
@@ -1336,21 +1289,6 @@ ObjectFileELF::RefineModuleDetailsFromNote(lldb_private::DataExtractor &data,
// Set the elf OS version to OpenBSD. Also clear the vendor.
arch_spec.GetTriple().setOS(llvm::Triple::OSType::OpenBSD);
arch_spec.GetTriple().setVendor(llvm::Triple::VendorType::UnknownVendor);
}
// Process CSR kalimba notes
else if ((note.n_type == LLDB_NT_GNU_ABI_TAG) &&
(note.n_name == LLDB_NT_OWNER_CSR)) {
arch_spec.GetTriple().setOS(llvm::Triple::OSType::UnknownOS);
arch_spec.GetTriple().setVendor(llvm::Triple::VendorType::CSR);
// TODO At some point the description string could be processed.
// It could provide a steer towards the kalimba variant which this ELF
// targets.
if (note.n_descsz) {
const char *cstr =
data.GetCStr(&offset, llvm::alignTo(note.n_descsz, 4));
(void)cstr;
}
} else if (note.n_name == LLDB_NT_OWNER_ANDROID) {
arch_spec.GetTriple().setOS(llvm::Triple::OSType::Linux);
arch_spec.GetTriple().setEnvironment(
@@ -1808,14 +1746,7 @@ SectionType ObjectFileELF::GetSectionType(const ELFSectionHeaderInfo &H) const {
case SHT_DYNAMIC:
return eSectionTypeELFDynamicLinkInfo;
}
SectionType Type = GetSectionTypeFromName(H.section_name.GetStringRef());
if (Type == eSectionTypeOther) {
// the kalimba toolchain assumes that ELF section names are free-form.
// It does support linkscripts which (can) give rise to various
// arbitrarily named sections being "Code" or "Data".
Type = kalimbaSectionType(m_header, H);
}
return Type;
return GetSectionTypeFromName(H.section_name.GetStringRef());
}
static uint32_t GetTargetByteSize(SectionType Type, const ArchSpec &arch) {