From d24184591fb7223fe6fea724be901ee501bf1cc3 Mon Sep 17 00:00:00 2001
From: Puyan Lotfi <puyan@puyan.org>
Date: Thu, 22 Aug 2019 23:29:22 +0000
Subject: [clang][ifs] New interface stubs format (llvm triple based).

After posting llvm-ifs on phabricator, I made some progress in hardening up how
I think the format for Interface Stubs should look. There are a number of
things I think the TBE format was missing (no endianness, no info about the
Object Format because it assumes ELF), so I have added those and broken off
from being as similar to the TBE schema. In a subsequent commit I can drop the
other formats.

An example of how The format will look is as follows:

--- !experimental-ifs-v1
IfsVersion: 1.0
Triple: x86_64-unknown-linux-gnu
ObjectFileFormat: ELF
Symbols:
  _Z9nothiddenv: { Type: Func }
  _Z10cmdVisiblev: { Type: Func }
...

The format is still marked experimental.

Differential Revision: https://reviews.llvm.org/D66446

llvm-svn: 369715
---
 clang/lib/Frontend/CompilerInvocation.cpp | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'clang/lib/Frontend/CompilerInvocation.cpp')

diff --git a/clang/lib/Frontend/CompilerInvocation.cpp b/clang/lib/Frontend/CompilerInvocation.cpp
index 66684e5c961..c0539cda110 100644
--- a/clang/lib/Frontend/CompilerInvocation.cpp
+++ b/clang/lib/Frontend/CompilerInvocation.cpp
@@ -1737,11 +1737,14 @@ static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args,
                     frontend::GenerateInterfaceYAMLExpV1)
               .Case("experimental-tapi-elf-v1",
                     frontend::GenerateInterfaceTBEExpV1)
+              .Case("experimental-ifs-v1",
+                    frontend::GenerateInterfaceIfsExpV1)
               .Default(llvm::None);
       if (!ProgramAction)
         Diags.Report(diag::err_drv_invalid_value)
             << "Must specify a valid interface stub format type using "
             << "-interface-stub-version=<experimental-tapi-elf-v1 | "
+               "experimental-ifs-v1 | "
                "experimental-yaml-elf-v1>";
       Opts.ProgramAction = *ProgramAction;
       break;
@@ -3185,6 +3188,7 @@ static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) {
   case frontend::GeneratePCH:
   case frontend::GenerateInterfaceYAMLExpV1:
   case frontend::GenerateInterfaceTBEExpV1:
+  case frontend::GenerateInterfaceIfsExpV1:
   case frontend::ParseSyntaxOnly:
   case frontend::ModuleFileInfo:
   case frontend::VerifyPCH:
-- 
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