Emit CFI for x86 & x86_64 JNI compiler.

Now for host-side x86 & x86_64 ART, we are able to get complete stacktrace with even mixed C/C++ & Java stack frames.

Testing:
1. art/test/run-test --host --gdb [--64] --no-relocate 005
2. In gdb, run 'b art::Class_classForName' which is implementation of a Java native method, then 'r'
3. In gdb, run 'bt'. You should see stack frames down to main()

Change-Id: I2d17e9aa0f6d42d374b5362a15ea35a2fce96302

1 files changed, 0 insertions, 25 deletions

diff --git a/compiler/elf_writer_quick.cc b/compiler/elf_writer_quick.cc
index 12e9401..bb5f7e0 100644
--- a/compiler/elf_writer_quick.cc
+++ b/compiler/elf_writer_quick.cc
@@ -46,13 +46,6 @@ static void UpdateWord(std::vector<uint8_t>* buf, int offset, int data) {
   (*buf)[offset+3] = data >> 24;
 }
 
-static void PushWord(std::vector<uint8_t>* buf, int data) {
-  buf->push_back(data & 0xff);
-  buf->push_back((data >> 8) & 0xff);
-  buf->push_back((data >> 16) & 0xff);
-  buf->push_back((data >> 24) & 0xff);
-}
-
 static void PushHalf(std::vector<uint8_t>* buf, int data) {
   buf->push_back(data & 0xff);
   buf->push_back((data >> 8) & 0xff);
@@ -842,24 +835,6 @@ void ElfWriterQuick::ReservePatchSpace(std::vector<uint8_t>* buffer, bool debug)
   }
 }
 
-static void EncodeUnsignedLeb128(uint32_t data, std::vector<uint8_t>* dst) {
-  size_t encoded_size = UnsignedLeb128Size(data);
-  size_t cur_index = dst->size();
-  dst->resize(dst->size() + encoded_size);
-  uint8_t* write_pos = &((*dst)[cur_index]);
-  uint8_t* write_pos_after = EncodeUnsignedLeb128(write_pos, data);
-  DCHECK_EQ(static_cast<size_t>(write_pos_after - write_pos), encoded_size);
-}
-
-static void EncodeSignedLeb128(int32_t data, std::vector<uint8_t>* dst) {
-  size_t encoded_size = SignedLeb128Size(data);
-  size_t cur_index = dst->size();
-  dst->resize(dst->size() + encoded_size);
-  uint8_t* write_pos = &((*dst)[cur_index]);
-  uint8_t* write_pos_after = EncodeSignedLeb128(write_pos, data);
-  DCHECK_EQ(static_cast<size_t>(write_pos_after - write_pos), encoded_size);
-}
-
 std::vector<uint8_t>* ConstructCIEFrameX86(bool is_x86_64) {
   std::vector<uint8_t>*cfi_info = new std::vector<uint8_t>;