[PS5][Driver] Pass layout metrics to the linker (#114435)

Until now, these have been hardcoded as a downstream patches in lld. Add
them to the driver so that the private patches can be removed.

PS5 only. On PS4, the equivalent hardcoded configuration will remain in
the proprietary linker.

SIE tracker: TOOLCHAIN-16704

Author: playstation-edd

clang/lib/Driver/ToolChains/PS4CPU.cpp

@@ -248,8 +248,9 @@ void tools::PS5cpu::Linker::ConstructJob(Compilation &C, const JobAction &JA,
       Args.MakeArgString("--sysroot=" + TC.getSDKLibraryRootDir()));
 
   // Default to PIE for non-static executables.
-  const bool PIE = !Relocatable && !Shared && !Static;
-  if (Args.hasFlag(options::OPT_pie, options::OPT_no_pie, PIE))
+  const bool PIE = Args.hasFlag(options::OPT_pie, options::OPT_no_pie,
+                                !Relocatable && !Shared && !Static);
+  if (PIE)
     CmdArgs.push_back("-pie");
 
   if (!Relocatable) {
@@ -276,6 +277,12 @@ void tools::PS5cpu::Linker::ConstructJob(Compilation &C, const JobAction &JA,
     CmdArgs.push_back("-z");
     CmdArgs.push_back("start-stop-visibility=hidden");
 
+    CmdArgs.push_back("-z");
+    CmdArgs.push_back("common-page-size=0x4000");
+
+    CmdArgs.push_back("-z");
+    CmdArgs.push_back("max-page-size=0x4000");
+
     // Patch relocated regions of DWARF whose targets are eliminated at link
     // time with specific tombstones, such that they're recognisable by the
     // PlayStation debugger.
@@ -295,6 +302,11 @@ void tools::PS5cpu::Linker::ConstructJob(Compilation &C, const JobAction &JA,
   if (Shared)
     CmdArgs.push_back("--shared");
 
+  // Provide a base address for non-PIE executables. This includes cases where
+  // -static is supplied without -pie.
+  if (!Relocatable && !Shared && !PIE)
+    CmdArgs.push_back("--image-base=0x400000");
+
   assert((Output.isFilename() || Output.isNothing()) && "Invalid output.");
   if (Output.isFilename()) {
     CmdArgs.push_back("-o");

clang/test/Driver/ps5-linker.c

@@ -21,6 +21,22 @@
 // CHECK-NO-PIE-NOT: "-pie"
 // CHECK-SHARED: "--shared"
 
+// Test the driver supplies an --image-base to the linker only for non-pie
+// executables.
+
+// RUN: %clang --target=x86_64-sie-ps5 -static %s -### 2>&1 | FileCheck --check-prefixes=CHECK-BASE %s
+// RUN: %clang --target=x86_64-sie-ps5 -no-pie %s -### 2>&1 | FileCheck --check-prefixes=CHECK-BASE %s
+
+// CHECK-BASE: {{ld(\.exe)?}}"
+// CHECK-BASE-SAME: "--image-base=0x400000"
+
+// RUN: %clang --target=x86_64-sie-ps5 %s -### 2>&1 | FileCheck --check-prefixes=CHECK-NO-BASE %s
+// RUN: %clang --target=x86_64-sie-ps5 -r %s -### 2>&1 | FileCheck --check-prefixes=CHECK-NO-BASE %s
+// RUN: %clang --target=x86_64-sie-ps5 -shared %s -### 2>&1 | FileCheck --check-prefixes=CHECK-NO-BASE %s
+
+// CHECK-NO-BASE: {{ld(\.exe)?}}"
+// CHECK-NO-BASE-NOT: --image-base
+
 // Test the driver passes PlayStation-specific options to the linker that are
 // appropriate for the type of output. Many options don't apply for relocatable
 // output (-r).
@@ -37,6 +53,8 @@
 // CHECK-EXE-SAME: "--unresolved-symbols=report-all"
 // CHECK-EXE-SAME: "-z" "now"
 // CHECK-EXE-SAME: "-z" "start-stop-visibility=hidden"
+// CHECK-EXE-SAME: "-z" "common-page-size=0x4000"
+// CHECK-EXE-SAME: "-z" "max-page-size=0x4000"
 // CHECK-EXE-SAME: "-z" "dead-reloc-in-nonalloc=.debug_*=0xffffffffffffffff"
 // CHECK-EXE-SAME: "-z" "dead-reloc-in-nonalloc=.debug_ranges=0xfffffffffffffffe"
 // CHECK-EXE-SAME: "-z" "dead-reloc-in-nonalloc=.debug_loc=0xfffffffffffffffe"