archive/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2025-08-27 06:45:07 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

8003240: x86: move MacroAssembler into separate file

Browse source 
Reviewed-by: kvn
This commit is contained in:
Christian Thalinger 2012-11-30 15:23:16 -08:00
parent a533392684
commit 2c2c007448
79 changed files with 7667 additions and 7664 deletions
Download patch file Download diff file Expand all files Collapse all files

42
hotspot/src/cpu/x86/vm/assembler_x86.inline.hpp
View file

@ -28,48 +28,6 @@
#include "asm/assembler.inline.hpp"
#include "asm/codeBuffer.hpp"
#include "code/codeCache.hpp"
#include "runtime/handles.inline.hpp"
inline void MacroAssembler::pd_patch_instruction(address branch, address target) {
unsigned char op = branch[0];
assert(op == 0xE8 /* call */ ||
op == 0xE9 /* jmp */ ||
op == 0xEB /* short jmp */ ||
(op & 0xF0) == 0x70 /* short jcc */ ||
op == 0x0F && (branch[1] & 0xF0) == 0x80 /* jcc */,
"Invalid opcode at patch point");
if (op == 0xEB || (op & 0xF0) == 0x70) {
// short offset operators (jmp and jcc)
char* disp = (char*) &branch[1];
int imm8 = target - (address) &disp[1];
guarantee(this->is8bit(imm8), "Short forward jump exceeds 8-bit offset");
*disp = imm8;
} else {
int* disp = (int*) &branch[(op == 0x0F)? 2: 1];
int imm32 = target - (address) &disp[1];
*disp = imm32;
}
}
#ifndef PRODUCT
inline void MacroAssembler::pd_print_patched_instruction(address branch) {
const char* s;
unsigned char op = branch[0];
if (op == 0xE8) {
s = "call";
} else if (op == 0xE9 || op == 0xEB) {
s = "jmp";
} else if ((op & 0xF0) == 0x70) {
s = "jcc";
} else if (op == 0x0F) {
s = "jcc";
} else {
s = "????";
}
tty->print("%s (unresolved)", s);
}
#endif // ndef PRODUCT
#ifndef _LP64
inline int Assembler::prefix_and_encode(int reg_enc, bool byteinst) { return reg_enc; }