#include "llvm/Support/MD5.h"
#include "llvm/Support/MathExtras.h"
#include "llvm/Support/SHA1.h"
+#include <regex>
using namespace llvm;
using namespace llvm::dwarf;
flags |= SHF_INFO_LINK;
}
-// Returns true if S matches /Filename.?\.o$/.
-static bool isCrtBeginEnd(StringRef s, StringRef filename) {
- if (!s.endswith(".o"))
- return false;
- s = s.drop_back(2);
- if (s.endswith(filename))
- return true;
- return !s.empty() && s.drop_back().endswith(filename);
+// Returns true if S is in one of the many forms the compiler driver may pass
+// crtbegin files.
+//
+// Gcc uses any of crtbegin[<empty>|S|T].o.
+// Clang uses Gcc's plus clang_rt.crtbegin[<empty>|S|T][-<arch>|<empty>].o.
+
+static bool isCrtbegin(StringRef s) {
+ static std::regex re(R"((clang_rt\.)?crtbegin[ST]?(-.*)?\.o)");
+ s = sys::path::filename(s);
+ return std::regex_match(s.begin(), s.end(), re);
}
-static bool isCrtbegin(StringRef s) { return isCrtBeginEnd(s, "crtbegin"); }
-static bool isCrtend(StringRef s) { return isCrtBeginEnd(s, "crtend"); }
+static bool isCrtend(StringRef s) {
+ static std::regex re(R"((clang_rt\.)?crtend[ST]?(-.*)?\.o)");
+ s = sys::path::filename(s);
+ return std::regex_match(s.begin(), s.end(), re);
+}
// .ctors and .dtors are sorted by this priority from highest to lowest.
//
// Test .ctors* and .dtors* are sorted by priority.
// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t1
+// RUN: mkdir -p %t
// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux \
-// RUN: %p/Inputs/ctors_dtors_priority1.s -o %t-crtbegin.o
+// RUN: %p/Inputs/ctors_dtors_priority1.s -o %t/crtbegin.o
// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux \
// RUN: %p/Inputs/ctors_dtors_priority2.s -o %t2
// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux \
-// RUN: %p/Inputs/ctors_dtors_priority3.s -o %t-crtend.o
-// RUN: ld.lld %t1 %t2 %t-crtend.o %t-crtbegin.o -o %t.exe
+// RUN: %p/Inputs/ctors_dtors_priority3.s -o %t/crtend.o
+// RUN: ld.lld %t1 %t2 %t/crtend.o %t/crtbegin.o -o %t.exe
// RUN: llvm-objdump -s %t.exe | FileCheck %s
+// RUN: cp %t/crtbegin.o %t/clang_rt.crtbegin.o
+// RUN: cp %t/crtend.o %t/clang_rt.crtend.o
+// RUN: ld.lld %t1 %t2 %t/clang_rt.crtend.o %t/clang_rt.crtbegin.o -o %t.clang_rt.exe
+// RUN: llvm-objdump -s %t.clang_rt.exe | FileCheck %s
+
+// RUN: cp %t/crtbegin.o %t/clang_rt.crtbegin-x86_64.o
+// RUN: cp %t/crtend.o %t/clang_rt.crtend-x86_64.o
+// RUN: ld.lld %t1 %t2 %t/clang_rt.crtend-x86_64.o %t/clang_rt.crtbegin-x86_64.o -o %t.clang_rt-arch.exe
+// RUN: llvm-objdump -s %t.clang_rt-arch.exe | FileCheck %s
+
+
.globl _start
_start:
nop