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[PS4][driver] make -fjmc work with LTO driver linking stage 

Reviewed By: probinson

Differential Revision: https://reviews.llvm.org/D131820
This commit is contained in:
Yuanfang Chen 2022-08-29 10:52:00 -07:00
parent 70248bfdea
commit 288576f474
2 changed files with 49 additions and 0 deletions
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29
clang/lib/Driver/ToolChains/PS4CPU.cpp
View File

@ -152,6 +152,26 @@ void tools::PScpu::Linker::ConstructJob(Compilation &C, const JobAction &JA,
assert(Output.isNothing() && "Invalid output.");
}
const bool UseLTO = D.isUsingLTO();
const bool UseJMC =
Args.hasFlag(options::OPT_fjmc, options::OPT_fno_jmc, false);
const bool IsPS4 = TC.getTriple().isPS4();
const bool IsPS5 = TC.getTriple().isPS5();
assert(IsPS4 || IsPS5);
// This tells LTO to perform JustMyCode instrumentation.
if (UseLTO && UseJMC) {
if (IsPS4 && D.getLTOMode() == LTOK_Thin) {
CmdArgs.push_back("-lto-thin-debug-options=-enable-jmc-instrument");
} else if (IsPS4 && D.getLTOMode() == LTOK_Full) {
CmdArgs.push_back("-lto-debug-options=-enable-jmc-instrument");
} else if (IsPS5) {
CmdArgs.push_back("-mllvm");
CmdArgs.push_back("-enable-jmc-instrument");
} else
llvm_unreachable("new LTO mode?");
}
if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs))
TC.addSanitizerArgs(Args, CmdArgs, "-l", "");
@ -171,6 +191,15 @@ void tools::PScpu::Linker::ConstructJob(Compilation &C, const JobAction &JA,
CmdArgs.push_back("-lpthread");
}
if (UseJMC) {
CmdArgs.push_back("--whole-archive");
if (IsPS4)
CmdArgs.push_back("-lSceDbgJmc");
else
CmdArgs.push_back("-lSceJmc_nosubmission");
CmdArgs.push_back("--no-whole-archive");
}
if (Args.hasArg(options::OPT_fuse_ld_EQ)) {
D.Diag(diag::err_drv_unsupported_opt_for_target)
<< "-fuse-ld" << TC.getTriple().str();

20
clang/test/Driver/ps4-ps5-linker-jmc.c Normal file
View File

@ -0,0 +1,20 @@
// Test the driver's control over the JustMyCode behavior with linker flags.
// RUN: %clang --target=x86_64-scei-ps4 -fjmc %s -### 2>&1 | FileCheck --check-prefixes=CHECK-PS4,CHECK-PS4-LIB %s
// RUN: %clang --target=x86_64-scei-ps4 -flto=thin -fjmc %s -### 2>&1 | FileCheck --check-prefixes=CHECK-PS4-THIN-LTO,CHECK-PS4-LIB %s
// RUN: %clang --target=x86_64-scei-ps4 -flto=full -fjmc %s -### 2>&1 | FileCheck --check-prefixes=CHECK-PS4-FULL-LTO,CHECK-PS4-LIB %s
// RUN: %clang --target=x86_64-scei-ps5 -fjmc %s -### 2>&1 | FileCheck --check-prefixes=CHECK-PS5,CHECK-PS5-LIB %s
// RUN: %clang --target=x86_64-scei-ps5 -flto -fjmc %s -### 2>&1 | FileCheck --check-prefixes=CHECK-PS5-LTO,CHECK-PS5-LIB %s
// CHECK-PS4-NOT: "-enable-jmc-instrument"
// CHECK-PS4-THIN-LTO: "-lto-thin-debug-options=-enable-jmc-instrument"
// CHECK-PS4-FULL-LTO: "-lto-debug-options=-enable-jmc-instrument"
// CHECK-PS5-NOT: "-enable-jmc-instrument"
// CHECK-PS5-LTO: "-mllvm" "-enable-jmc-instrument"
// Check the default library name.
// CHECK-PS4-LIB: "--whole-archive" "-lSceDbgJmc" "--no-whole-archive"
// CHECK-PS5-LIB: "--whole-archive" "-lSceJmc_nosubmission" "--no-whole-archive"