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sync with OpenBSD -current

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This commit is contained in:
purplerain 2023-12-03 20:46:03 +00:00
parent 02d83d01a6
commit 005bcb25db
Signed by: purplerain
GPG key ID: F42C07F07E2E35B7
29 changed files with 312 additions and 230 deletions
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1
gnu/llvm/lld/ELF/ScriptParser.cpp
View file

@ -1577,6 +1577,7 @@ unsigned ScriptParser::readPhdrType() {
.Case("PT_GNU_RELRO", PT_GNU_RELRO)
.Case("PT_OPENBSD_MUTABLE", PT_OPENBSD_MUTABLE)
.Case("PT_OPENBSD_RANDOMIZE", PT_OPENBSD_RANDOMIZE)
.Case("PT_OPENBSD_SYSCALLS", PT_OPENBSD_SYSCALLS)
.Case("PT_OPENBSD_WXNEEDED", PT_OPENBSD_WXNEEDED)
.Case("PT_OPENBSD_BOOTDATA", PT_OPENBSD_BOOTDATA)
.Default(-1);

5
gnu/llvm/lld/ELF/Writer.cpp
View file

@ -2388,6 +2388,11 @@ SmallVector<PhdrEntry *, 0> Writer<ELFT>::createPhdrs(Partition &part) {
if (OutputSection *cmd = findSection(".openbsd.randomdata", partNo))
addHdr(PT_OPENBSD_RANDOMIZE, cmd->getPhdrFlags())->add(cmd);
// PT_OPENBSD_SYSCALLS is an OpenBSD-specific feature. That makes
// the kernel and dynamic linker register system call sites.
if (OutputSection *cmd = findSection(".openbsd.syscalls", partNo))
addHdr(PT_OPENBSD_SYSCALLS, cmd->getPhdrFlags())->add(cmd);
if (config->zGnustack != GnuStackKind::None) {
// PT_GNU_STACK is a special section to tell the loader to make the
// pages for the stack non-executable. If you really want an executable

1
gnu/llvm/llvm/include/llvm/BinaryFormat/ELF.h
View file

@ -1405,6 +1405,7 @@ enum {
PT_OPENBSD_RANDOMIZE = 0x65a3dbe6, // Fill with random data.
PT_OPENBSD_WXNEEDED = 0x65a3dbe7, // Program does W^X violations.
PT_OPENBSD_NOBTCFI = 0x65a3dbe8, // Do not enforce branch target CFI
PT_OPENBSD_SYSCALLS = 0x65a3dbe9, // System call sites.
PT_OPENBSD_BOOTDATA = 0x65a41be6, // Section for boot arguments.
// ARM program header types.

3
gnu/llvm/llvm/tools/llvm-objdump/ELFDump.cpp
View file

@ -259,6 +259,9 @@ static void printProgramHeaders(const ELFFile<ELFT> &Obj, StringRef FileName) {
case ELF::PT_OPENBSD_RANDOMIZE:
outs() << "OPENBSD_RANDOMIZE ";
break;
case ELF::PT_OPENBSD_SYSCALLS:
outs() << "OPENBSD_SYSCALLS ";
break;
case ELF::PT_OPENBSD_WXNEEDED:
outs() << "OPENBSD_WXNEEDED ";
break;

1
gnu/llvm/llvm/tools/llvm-readobj/ELFDumper.cpp
View file

@ -1411,6 +1411,7 @@ static StringRef segmentTypeToString(unsigned Arch, unsigned Type) {
LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_MUTABLE);
LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_RANDOMIZE);
LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_SYSCALLS);
LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_WXNEEDED);
LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_NOBTCFI);
LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_BOOTDATA);