added flags computation optimization
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@34 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard
parent
ca735206e0
commit
dc99065b5f
2
Makefile
2
Makefile
@ -33,7 +33,7 @@ LIBS+=-ldl -lm
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# profiling code
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ifdef TARGET_GPROF
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LDFLAGS+=-p
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CFLAGS+=-p
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main.o: CFLAGS+=-p
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endif
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OBJS= elfload.o main.o thunk.o syscall.o
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8
TODO
8
TODO
@ -1,9 +1,7 @@
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- optimize translated cache chaining (DLL PLT like system)
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- improved 16 bit support
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- optimize inverse flags propagation (easy by generating intermediate
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micro operation array).
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- optimize translated cache chaining (DLL PLT-like system)
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- 64 bit syscalls
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- signals
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- threads
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- make it self runnable (use same trick as ld.so : include its own relocator and libc)
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- improved 16 bit support
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- fix FPU exceptions (in particular: gen_op_fpush not before mem load)
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- tests
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237
dis-asm.h
Normal file
237
dis-asm.h
Normal file
@ -0,0 +1,237 @@
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/* Interface between the opcode library and its callers.
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Written by Cygnus Support, 1993.
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The opcode library (libopcodes.a) provides instruction decoders for
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a large variety of instruction sets, callable with an identical
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interface, for making instruction-processing programs more independent
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of the instruction set being processed. */
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#ifndef DIS_ASM_H
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#define DIS_ASM_H
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#include <stdio.h>
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#include "bfd.h"
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typedef int (*fprintf_ftype) PARAMS((FILE*, const char*, ...));
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enum dis_insn_type {
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dis_noninsn, /* Not a valid instruction */
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dis_nonbranch, /* Not a branch instruction */
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dis_branch, /* Unconditional branch */
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dis_condbranch, /* Conditional branch */
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dis_jsr, /* Jump to subroutine */
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dis_condjsr, /* Conditional jump to subroutine */
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dis_dref, /* Data reference instruction */
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dis_dref2 /* Two data references in instruction */
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};
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/* This struct is passed into the instruction decoding routine,
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and is passed back out into each callback. The various fields are used
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for conveying information from your main routine into your callbacks,
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for passing information into the instruction decoders (such as the
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addresses of the callback functions), or for passing information
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back from the instruction decoders to their callers.
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It must be initialized before it is first passed; this can be done
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by hand, or using one of the initialization macros below. */
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typedef struct disassemble_info {
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fprintf_ftype fprintf_func;
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FILE *stream;
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PTR application_data;
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/* Target description. We could replace this with a pointer to the bfd,
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but that would require one. There currently isn't any such requirement
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so to avoid introducing one we record these explicitly. */
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/* The bfd_flavour. This can be bfd_target_unknown_flavour. */
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enum bfd_flavour flavour;
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/* The bfd_arch value. */
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enum bfd_architecture arch;
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/* The bfd_mach value. */
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unsigned long mach;
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/* Endianness (for bi-endian cpus). Mono-endian cpus can ignore this. */
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enum bfd_endian endian;
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/* An array of pointers to symbols either at the location being disassembled
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or at the start of the function being disassembled. The array is sorted
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so that the first symbol is intended to be the one used. The others are
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present for any misc. purposes. This is not set reliably, but if it is
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not NULL, it is correct. */
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asymbol **symbols;
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/* Number of symbols in array. */
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int num_symbols;
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/* For use by the disassembler.
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The top 16 bits are reserved for public use (and are documented here).
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The bottom 16 bits are for the internal use of the disassembler. */
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unsigned long flags;
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#define INSN_HAS_RELOC 0x80000000
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PTR private_data;
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/* Function used to get bytes to disassemble. MEMADDR is the
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address of the stuff to be disassembled, MYADDR is the address to
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put the bytes in, and LENGTH is the number of bytes to read.
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INFO is a pointer to this struct.
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Returns an errno value or 0 for success. */
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int (*read_memory_func)
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PARAMS ((bfd_vma memaddr, bfd_byte *myaddr, int length,
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struct disassemble_info *info));
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/* Function which should be called if we get an error that we can't
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recover from. STATUS is the errno value from read_memory_func and
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MEMADDR is the address that we were trying to read. INFO is a
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pointer to this struct. */
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void (*memory_error_func)
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PARAMS ((int status, bfd_vma memaddr, struct disassemble_info *info));
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/* Function called to print ADDR. */
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void (*print_address_func)
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PARAMS ((bfd_vma addr, struct disassemble_info *info));
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/* Function called to determine if there is a symbol at the given ADDR.
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If there is, the function returns 1, otherwise it returns 0.
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This is used by ports which support an overlay manager where
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the overlay number is held in the top part of an address. In
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some circumstances we want to include the overlay number in the
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address, (normally because there is a symbol associated with
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that address), but sometimes we want to mask out the overlay bits. */
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int (* symbol_at_address_func)
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PARAMS ((bfd_vma addr, struct disassemble_info * info));
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/* These are for buffer_read_memory. */
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bfd_byte *buffer;
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bfd_vma buffer_vma;
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int buffer_length;
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/* This variable may be set by the instruction decoder. It suggests
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the number of bytes objdump should display on a single line. If
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the instruction decoder sets this, it should always set it to
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the same value in order to get reasonable looking output. */
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int bytes_per_line;
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/* the next two variables control the way objdump displays the raw data */
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/* For example, if bytes_per_line is 8 and bytes_per_chunk is 4, the */
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/* output will look like this:
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00: 00000000 00000000
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with the chunks displayed according to "display_endian". */
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int bytes_per_chunk;
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enum bfd_endian display_endian;
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/* Results from instruction decoders. Not all decoders yet support
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this information. This info is set each time an instruction is
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decoded, and is only valid for the last such instruction.
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To determine whether this decoder supports this information, set
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insn_info_valid to 0, decode an instruction, then check it. */
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char insn_info_valid; /* Branch info has been set. */
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char branch_delay_insns; /* How many sequential insn's will run before
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a branch takes effect. (0 = normal) */
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char data_size; /* Size of data reference in insn, in bytes */
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enum dis_insn_type insn_type; /* Type of instruction */
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bfd_vma target; /* Target address of branch or dref, if known;
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zero if unknown. */
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bfd_vma target2; /* Second target address for dref2 */
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} disassemble_info;
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/* Standard disassemblers. Disassemble one instruction at the given
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target address. Return number of bytes processed. */
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typedef int (*disassembler_ftype)
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PARAMS((bfd_vma, disassemble_info *));
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extern int print_insn_big_mips PARAMS ((bfd_vma, disassemble_info*));
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extern int print_insn_little_mips PARAMS ((bfd_vma, disassemble_info*));
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extern int print_insn_i386 PARAMS ((bfd_vma, disassemble_info*));
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extern int print_insn_m68k PARAMS ((bfd_vma, disassemble_info*));
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extern int print_insn_z8001 PARAMS ((bfd_vma, disassemble_info*));
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extern int print_insn_z8002 PARAMS ((bfd_vma, disassemble_info*));
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extern int print_insn_h8300 PARAMS ((bfd_vma, disassemble_info*));
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extern int print_insn_h8300h PARAMS ((bfd_vma, disassemble_info*));
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extern int print_insn_h8300s PARAMS ((bfd_vma, disassemble_info*));
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extern int print_insn_h8500 PARAMS ((bfd_vma, disassemble_info*));
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extern int print_insn_alpha PARAMS ((bfd_vma, disassemble_info*));
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extern disassembler_ftype arc_get_disassembler PARAMS ((int, int));
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extern int print_insn_big_arm PARAMS ((bfd_vma, disassemble_info*));
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extern int print_insn_little_arm PARAMS ((bfd_vma, disassemble_info*));
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extern int print_insn_sparc PARAMS ((bfd_vma, disassemble_info*));
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extern int print_insn_big_a29k PARAMS ((bfd_vma, disassemble_info*));
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extern int print_insn_little_a29k PARAMS ((bfd_vma, disassemble_info*));
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extern int print_insn_i960 PARAMS ((bfd_vma, disassemble_info*));
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extern int print_insn_sh PARAMS ((bfd_vma, disassemble_info*));
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extern int print_insn_shl PARAMS ((bfd_vma, disassemble_info*));
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extern int print_insn_hppa PARAMS ((bfd_vma, disassemble_info*));
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extern int print_insn_m32r PARAMS ((bfd_vma, disassemble_info*));
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extern int print_insn_m88k PARAMS ((bfd_vma, disassemble_info*));
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extern int print_insn_mn10200 PARAMS ((bfd_vma, disassemble_info*));
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extern int print_insn_mn10300 PARAMS ((bfd_vma, disassemble_info*));
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extern int print_insn_ns32k PARAMS ((bfd_vma, disassemble_info*));
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extern int print_insn_big_powerpc PARAMS ((bfd_vma, disassemble_info*));
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extern int print_insn_little_powerpc PARAMS ((bfd_vma, disassemble_info*));
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extern int print_insn_rs6000 PARAMS ((bfd_vma, disassemble_info*));
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extern int print_insn_w65 PARAMS ((bfd_vma, disassemble_info*));
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extern int print_insn_d10v PARAMS ((bfd_vma, disassemble_info*));
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extern int print_insn_v850 PARAMS ((bfd_vma, disassemble_info*));
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extern int print_insn_tic30 PARAMS ((bfd_vma, disassemble_info*));
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/* Fetch the disassembler for a given BFD, if that support is available. */
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extern disassembler_ftype disassembler PARAMS ((bfd *));
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/* This block of definitions is for particular callers who read instructions
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into a buffer before calling the instruction decoder. */
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/* Here is a function which callers may wish to use for read_memory_func.
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It gets bytes from a buffer. */
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extern int buffer_read_memory
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PARAMS ((bfd_vma, bfd_byte *, int, struct disassemble_info *));
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/* This function goes with buffer_read_memory.
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It prints a message using info->fprintf_func and info->stream. */
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extern void perror_memory PARAMS ((int, bfd_vma, struct disassemble_info *));
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/* Just print the address in hex. This is included for completeness even
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though both GDB and objdump provide their own (to print symbolic
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addresses). */
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extern void generic_print_address
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PARAMS ((bfd_vma, struct disassemble_info *));
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/* Always true. */
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extern int generic_symbol_at_address
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PARAMS ((bfd_vma, struct disassemble_info *));
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/* Macro to initialize a disassemble_info struct. This should be called
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by all applications creating such a struct. */
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#define INIT_DISASSEMBLE_INFO(INFO, STREAM, FPRINTF_FUNC) \
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(INFO).flavour = bfd_target_unknown_flavour, \
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(INFO).arch = bfd_arch_unknown, \
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(INFO).mach = 0, \
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(INFO).endian = BFD_ENDIAN_UNKNOWN, \
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INIT_DISASSEMBLE_INFO_NO_ARCH(INFO, STREAM, FPRINTF_FUNC)
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/* Call this macro to initialize only the internal variables for the
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disassembler. Architecture dependent things such as byte order, or machine
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variant are not touched by this macro. This makes things much easier for
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GDB which must initialize these things seperatly. */
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#define INIT_DISASSEMBLE_INFO_NO_ARCH(INFO, STREAM, FPRINTF_FUNC) \
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(INFO).fprintf_func = (FPRINTF_FUNC), \
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(INFO).stream = (STREAM), \
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(INFO).symbols = NULL, \
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(INFO).num_symbols = 0, \
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(INFO).buffer = NULL, \
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(INFO).buffer_vma = 0, \
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(INFO).buffer_length = 0, \
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(INFO).read_memory_func = buffer_read_memory, \
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(INFO).memory_error_func = perror_memory, \
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(INFO).print_address_func = generic_print_address, \
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(INFO).symbol_at_address_func = generic_symbol_at_address, \
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(INFO).flags = 0, \
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(INFO).bytes_per_line = 0, \
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(INFO).bytes_per_chunk = 0, \
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(INFO).display_endian = BFD_ENDIAN_UNKNOWN, \
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(INFO).insn_info_valid = 0
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#endif /* ! defined (DIS_ASM_H) */
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79
dis-buf.c
Normal file
79
dis-buf.c
Normal file
@ -0,0 +1,79 @@
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/* Disassemble from a buffer, for GNU.
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Copyright (C) 1993, 1994 Free Software Foundation, Inc.
|
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|
||||
This program is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
|
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|
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#include "dis-asm.h"
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#include <errno.h>
|
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|
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/* Get LENGTH bytes from info's buffer, at target address memaddr.
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Transfer them to myaddr. */
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int
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buffer_read_memory (memaddr, myaddr, length, info)
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bfd_vma memaddr;
|
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bfd_byte *myaddr;
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int length;
|
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struct disassemble_info *info;
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{
|
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if (memaddr < info->buffer_vma
|
||||
|| memaddr + length > info->buffer_vma + info->buffer_length)
|
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/* Out of bounds. Use EIO because GDB uses it. */
|
||||
return EIO;
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memcpy (myaddr, info->buffer + (memaddr - info->buffer_vma), length);
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||||
return 0;
|
||||
}
|
||||
|
||||
/* Print an error message. We can assume that this is in response to
|
||||
an error return from buffer_read_memory. */
|
||||
void
|
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perror_memory (status, memaddr, info)
|
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int status;
|
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bfd_vma memaddr;
|
||||
struct disassemble_info *info;
|
||||
{
|
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if (status != EIO)
|
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/* Can't happen. */
|
||||
(*info->fprintf_func) (info->stream, "Unknown error %d\n", status);
|
||||
else
|
||||
/* Actually, address between memaddr and memaddr + len was
|
||||
out of bounds. */
|
||||
(*info->fprintf_func) (info->stream,
|
||||
"Address 0x%x is out of bounds.\n", memaddr);
|
||||
}
|
||||
|
||||
/* This could be in a separate file, to save miniscule amounts of space
|
||||
in statically linked executables. */
|
||||
|
||||
/* Just print the address is hex. This is included for completeness even
|
||||
though both GDB and objdump provide their own (to print symbolic
|
||||
addresses). */
|
||||
|
||||
void
|
||||
generic_print_address (addr, info)
|
||||
bfd_vma addr;
|
||||
struct disassemble_info *info;
|
||||
{
|
||||
(*info->fprintf_func) (info->stream, "0x%x", addr);
|
||||
}
|
||||
|
||||
/* Just return the given address. */
|
||||
|
||||
int
|
||||
generic_symbol_at_address (addr, info)
|
||||
bfd_vma addr;
|
||||
struct disassemble_info * info;
|
||||
{
|
||||
return 1;
|
||||
}
|
||||
210
dyngen.c
210
dyngen.c
@ -28,7 +28,7 @@
|
||||
#include "thunk.h"
|
||||
|
||||
/* all dynamically generated functions begin with this code */
|
||||
#define OP_PREFIX "op"
|
||||
#define OP_PREFIX "op_"
|
||||
|
||||
int elf_must_swap(Elf32_Ehdr *h)
|
||||
{
|
||||
@ -201,7 +201,7 @@ int strstart(const char *str, const char *val, const char **ptr)
|
||||
/* generate op code */
|
||||
void gen_code(const char *name, unsigned long offset, unsigned long size,
|
||||
FILE *outfile, uint8_t *text, void *relocs, int nb_relocs, int reloc_sh_type,
|
||||
Elf32_Sym *symtab, char *strtab)
|
||||
Elf32_Sym *symtab, char *strtab, int gen_switch)
|
||||
{
|
||||
int copy_size = 0;
|
||||
uint8_t *p_start, *p_end;
|
||||
@ -258,8 +258,6 @@ void gen_code(const char *name, unsigned long offset, unsigned long size,
|
||||
if (n >= MAX_ARGS)
|
||||
error("too many arguments in %s", name);
|
||||
args_present[n - 1] = 1;
|
||||
} else {
|
||||
fprintf(outfile, "extern char %s;\n", sym_name);
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -274,8 +272,6 @@ void gen_code(const char *name, unsigned long offset, unsigned long size,
|
||||
if (n >= MAX_ARGS)
|
||||
error("too many arguments in %s", name);
|
||||
args_present[n - 1] = 1;
|
||||
} else {
|
||||
fprintf(outfile, "extern char %s;\n", sym_name);
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -289,31 +285,57 @@ void gen_code(const char *name, unsigned long offset, unsigned long size,
|
||||
error("inconsistent argument numbering in %s", name);
|
||||
}
|
||||
|
||||
/* output C code */
|
||||
fprintf(outfile, "extern void %s();\n", name);
|
||||
fprintf(outfile, "static inline void gen_%s(", name);
|
||||
if (nb_args == 0) {
|
||||
fprintf(outfile, "void");
|
||||
} else {
|
||||
for(i = 0; i < nb_args; i++) {
|
||||
if (i != 0)
|
||||
fprintf(outfile, ", ");
|
||||
fprintf(outfile, "long param%d", i + 1);
|
||||
if (gen_switch) {
|
||||
|
||||
/* output C code */
|
||||
fprintf(outfile, "case INDEX_%s: {\n", name);
|
||||
if (nb_args > 0) {
|
||||
fprintf(outfile, " long ");
|
||||
for(i = 0; i < nb_args; i++) {
|
||||
if (i != 0)
|
||||
fprintf(outfile, ", ");
|
||||
fprintf(outfile, "param%d", i + 1);
|
||||
}
|
||||
fprintf(outfile, ";\n");
|
||||
}
|
||||
}
|
||||
fprintf(outfile, ")\n");
|
||||
fprintf(outfile, "{\n");
|
||||
fprintf(outfile, " memcpy(gen_code_ptr, &%s, %d);\n", name, copy_size);
|
||||
|
||||
/* patch relocations */
|
||||
switch(e_machine) {
|
||||
case EM_386:
|
||||
{
|
||||
fprintf(outfile, " extern void %s();\n", name);
|
||||
|
||||
if (reloc_sh_type == SHT_REL) {
|
||||
Elf32_Rel *rel;
|
||||
char name[256];
|
||||
int type;
|
||||
long addend;
|
||||
for(i = 0, rel = relocs;i < nb_relocs; i++, rel++) {
|
||||
if (rel->r_offset >= offset && rel->r_offset < offset + copy_size) {
|
||||
sym_name = strtab + symtab[ELF32_R_SYM(rel->r_info)].st_name;
|
||||
if (!strstart(sym_name, "__op_param", &p)) {
|
||||
fprintf(outfile, "extern char %s;\n", sym_name);
|
||||
}
|
||||
}
|
||||
}
|
||||
} else {
|
||||
Elf32_Rela *rel;
|
||||
for(i = 0, rel = relocs;i < nb_relocs; i++, rel++) {
|
||||
if (rel->r_offset >= offset && rel->r_offset < offset + copy_size) {
|
||||
sym_name = strtab + symtab[ELF32_R_SYM(rel->r_info)].st_name;
|
||||
if (!strstart(sym_name, "__op_param", &p)) {
|
||||
fprintf(outfile, "extern char %s;\n", sym_name);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fprintf(outfile, " memcpy(gen_code_ptr, &%s, %d);\n", name, copy_size);
|
||||
for(i = 0; i < nb_args; i++) {
|
||||
fprintf(outfile, " param%d = *opparam_ptr++;\n", i + 1);
|
||||
}
|
||||
|
||||
/* patch relocations */
|
||||
switch(e_machine) {
|
||||
case EM_386:
|
||||
{
|
||||
Elf32_Rel *rel;
|
||||
char name[256];
|
||||
int type;
|
||||
long addend;
|
||||
for(i = 0, rel = relocs;i < nb_relocs; i++, rel++) {
|
||||
if (rel->r_offset >= offset && rel->r_offset < offset + copy_size) {
|
||||
sym_name = strtab + symtab[ELF32_R_SYM(rel->r_info)].st_name;
|
||||
if (strstart(sym_name, "__op_param", &p)) {
|
||||
@ -336,20 +358,38 @@ void gen_code(const char *name, unsigned long offset, unsigned long size,
|
||||
error("unsupported i386 relocation (%d)", type);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
break;
|
||||
default:
|
||||
error("unsupported CPU for relocations (%d)", e_machine);
|
||||
}
|
||||
fprintf(outfile, " gen_code_ptr += %d;\n", copy_size);
|
||||
fprintf(outfile, "}\n");
|
||||
fprintf(outfile, "break;\n\n");
|
||||
} else {
|
||||
fprintf(outfile, "static inline void gen_%s(", name);
|
||||
if (nb_args == 0) {
|
||||
fprintf(outfile, "void");
|
||||
} else {
|
||||
for(i = 0; i < nb_args; i++) {
|
||||
if (i != 0)
|
||||
fprintf(outfile, ", ");
|
||||
fprintf(outfile, "long param%d", i + 1);
|
||||
}
|
||||
}
|
||||
break;
|
||||
default:
|
||||
error("unsupported CPU for relocations (%d)", e_machine);
|
||||
fprintf(outfile, ")\n");
|
||||
fprintf(outfile, "{\n");
|
||||
for(i = 0; i < nb_args; i++) {
|
||||
fprintf(outfile, " *gen_opparam_ptr++ = param%d;\n", i + 1);
|
||||
}
|
||||
fprintf(outfile, " *gen_opc_ptr++ = INDEX_%s;\n", name);
|
||||
fprintf(outfile, "}\n\n");
|
||||
}
|
||||
|
||||
|
||||
fprintf(outfile, " gen_code_ptr += %d;\n", copy_size);
|
||||
fprintf(outfile, "}\n\n");
|
||||
}
|
||||
|
||||
/* load an elf object file */
|
||||
int load_elf(const char *filename, FILE *outfile)
|
||||
int load_elf(const char *filename, FILE *outfile, int do_print_enum)
|
||||
{
|
||||
int fd;
|
||||
Elf32_Ehdr ehdr;
|
||||
@ -476,23 +516,77 @@ int load_elf(const char *filename, FILE *outfile)
|
||||
error("unsupported CPU (e_machine=%d)", e_machine);
|
||||
}
|
||||
|
||||
fprintf(outfile, "#include \"gen-%s.h\"\n\n", cpu_name);
|
||||
if (do_print_enum) {
|
||||
fprintf(outfile, "DEF(end)\n");
|
||||
for(i = 0, sym = symtab; i < nb_syms; i++, sym++) {
|
||||
const char *name, *p;
|
||||
name = strtab + sym->st_name;
|
||||
if (strstart(name, OP_PREFIX, &p)) {
|
||||
fprintf(outfile, "DEF(%s)\n", p);
|
||||
}
|
||||
}
|
||||
} else {
|
||||
/* generate big code generation switch */
|
||||
fprintf(outfile,
|
||||
"int dyngen_code(uint8_t *gen_code_buf,\n"
|
||||
" const uint16_t *opc_buf, const uint32_t *opparam_buf)\n"
|
||||
"{\n"
|
||||
" uint8_t *gen_code_ptr;\n"
|
||||
" const uint16_t *opc_ptr;\n"
|
||||
" const uint32_t *opparam_ptr;\n"
|
||||
" gen_code_ptr = gen_code_buf;\n"
|
||||
" opc_ptr = opc_buf;\n"
|
||||
" opparam_ptr = opparam_buf;\n"
|
||||
" for(;;) {\n"
|
||||
" switch(*opc_ptr++) {\n"
|
||||
);
|
||||
|
||||
for(i = 0, sym = symtab; i < nb_syms; i++, sym++) {
|
||||
const char *name;
|
||||
name = strtab + sym->st_name;
|
||||
if (strstart(name, "op_", NULL) ||
|
||||
strstart(name, "op1_", NULL) ||
|
||||
strstart(name, "op2_", NULL) ||
|
||||
strstart(name, "op3_", NULL)) {
|
||||
for(i = 0, sym = symtab; i < nb_syms; i++, sym++) {
|
||||
const char *name;
|
||||
name = strtab + sym->st_name;
|
||||
if (strstart(name, OP_PREFIX, NULL)) {
|
||||
#if 0
|
||||
printf("%4d: %s pos=0x%08x len=%d\n",
|
||||
i, name, sym->st_value, sym->st_size);
|
||||
printf("%4d: %s pos=0x%08x len=%d\n",
|
||||
i, name, sym->st_value, sym->st_size);
|
||||
#endif
|
||||
if (sym->st_shndx != (text_sec - shdr))
|
||||
error("invalid section for opcode (0x%x)", sym->st_shndx);
|
||||
gen_code(name, sym->st_value, sym->st_size, outfile,
|
||||
text, relocs, nb_relocs, reloc_sh_type, symtab, strtab);
|
||||
if (sym->st_shndx != (text_sec - shdr))
|
||||
error("invalid section for opcode (0x%x)", sym->st_shndx);
|
||||
gen_code(name, sym->st_value, sym->st_size, outfile,
|
||||
text, relocs, nb_relocs, reloc_sh_type, symtab, strtab, 1);
|
||||
}
|
||||
}
|
||||
|
||||
fprintf(outfile,
|
||||
" default:\n"
|
||||
" goto the_end;\n"
|
||||
" }\n"
|
||||
" }\n"
|
||||
" the_end:\n"
|
||||
);
|
||||
|
||||
/* generate a return */
|
||||
switch(e_machine) {
|
||||
case EM_386:
|
||||
fprintf(outfile, "*gen_code_ptr++ = 0xc3; /* ret */\n");
|
||||
break;
|
||||
default:
|
||||
error("no return generation for cpu '%s'", cpu_name);
|
||||
}
|
||||
|
||||
fprintf(outfile, "return gen_code_ptr - gen_code_buf;\n");
|
||||
fprintf(outfile, "}\n\n");
|
||||
|
||||
/* generate gen_xxx functions */
|
||||
/* XXX: suppress the use of these functions to simplify code */
|
||||
for(i = 0, sym = symtab; i < nb_syms; i++, sym++) {
|
||||
const char *name;
|
||||
name = strtab + sym->st_name;
|
||||
if (strstart(name, OP_PREFIX, NULL)) {
|
||||
if (sym->st_shndx != (text_sec - shdr))
|
||||
error("invalid section for opcode (0x%x)", sym->st_shndx);
|
||||
gen_code(name, sym->st_value, sym->st_size, outfile,
|
||||
text, relocs, nb_relocs, reloc_sh_type, symtab, strtab, 0);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@ -503,20 +597,23 @@ int load_elf(const char *filename, FILE *outfile)
|
||||
void usage(void)
|
||||
{
|
||||
printf("dyngen (c) 2003 Fabrice Bellard\n"
|
||||
"usage: dyngen [-o outfile] objfile\n"
|
||||
"Generate a dynamic code generator from an object file\n");
|
||||
"usage: dyngen [-o outfile] [-c] objfile\n"
|
||||
"Generate a dynamic code generator from an object file\n"
|
||||
"-c output enum of operations\n"
|
||||
);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
int c;
|
||||
int c, do_print_enum;
|
||||
const char *filename, *outfilename;
|
||||
FILE *outfile;
|
||||
|
||||
outfilename = "out.c";
|
||||
do_print_enum = 0;
|
||||
for(;;) {
|
||||
c = getopt(argc, argv, "ho:");
|
||||
c = getopt(argc, argv, "ho:c");
|
||||
if (c == -1)
|
||||
break;
|
||||
switch(c) {
|
||||
@ -526,6 +623,9 @@ int main(int argc, char **argv)
|
||||
case 'o':
|
||||
outfilename = optarg;
|
||||
break;
|
||||
case 'c':
|
||||
do_print_enum = 1;
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (optind >= argc)
|
||||
@ -534,7 +634,7 @@ int main(int argc, char **argv)
|
||||
outfile = fopen(outfilename, "w");
|
||||
if (!outfile)
|
||||
error("could not open '%s'", outfilename);
|
||||
load_elf(filename, outfile);
|
||||
load_elf(filename, outfile, do_print_enum);
|
||||
fclose(outfile);
|
||||
return 0;
|
||||
}
|
||||
|
||||
@ -19,7 +19,7 @@
|
||||
*/
|
||||
#include "exec-i386.h"
|
||||
|
||||
#define DEBUG_EXEC
|
||||
//#define DEBUG_EXEC
|
||||
#define DEBUG_FLUSH
|
||||
|
||||
/* main execution loop */
|
||||
|
||||
@ -1,8 +0,0 @@
|
||||
static inline void gen_start(void)
|
||||
{
|
||||
}
|
||||
|
||||
static inline void gen_end(void)
|
||||
{
|
||||
*gen_code_ptr++ = 0xc3; /* ret */
|
||||
}
|
||||
2299
i386-dis.c
Normal file
2299
i386-dis.c
Normal file
File diff suppressed because it is too large
Load Diff
@ -1000,7 +1000,7 @@ long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3,
|
||||
ret = get_errno(setsid());
|
||||
break;
|
||||
case TARGET_NR_sigaction:
|
||||
#if 1
|
||||
#if 0
|
||||
{
|
||||
ret = 0;
|
||||
}
|
||||
|
||||
54
op-i386.c
54
op-i386.c
@ -177,7 +177,7 @@ void raise_exception(int exception_index)
|
||||
#undef REG
|
||||
#undef REGNAME
|
||||
|
||||
/* operations */
|
||||
/* operations with flags */
|
||||
|
||||
void OPPROTO op_addl_T0_T1_cc(void)
|
||||
{
|
||||
@ -217,11 +217,6 @@ void OPPROTO op_cmpl_T0_T1_cc(void)
|
||||
CC_DST = T0 - T1;
|
||||
}
|
||||
|
||||
void OPPROTO op_notl_T0(void)
|
||||
{
|
||||
T0 = ~T0;
|
||||
}
|
||||
|
||||
void OPPROTO op_negl_T0_cc(void)
|
||||
{
|
||||
CC_SRC = 0;
|
||||
@ -248,6 +243,53 @@ void OPPROTO op_testl_T0_T1_cc(void)
|
||||
CC_DST = T0 & T1;
|
||||
}
|
||||
|
||||
/* operations without flags */
|
||||
|
||||
void OPPROTO op_addl_T0_T1(void)
|
||||
{
|
||||
T0 += T1;
|
||||
}
|
||||
|
||||
void OPPROTO op_orl_T0_T1(void)
|
||||
{
|
||||
T0 |= T1;
|
||||
}
|
||||
|
||||
void OPPROTO op_andl_T0_T1(void)
|
||||
{
|
||||
T0 &= T1;
|
||||
}
|
||||
|
||||
void OPPROTO op_subl_T0_T1(void)
|
||||
{
|
||||
T0 -= T1;
|
||||
}
|
||||
|
||||
void OPPROTO op_xorl_T0_T1(void)
|
||||
{
|
||||
T0 ^= T1;
|
||||
}
|
||||
|
||||
void OPPROTO op_negl_T0(void)
|
||||
{
|
||||
T0 = -T0;
|
||||
}
|
||||
|
||||
void OPPROTO op_incl_T0(void)
|
||||
{
|
||||
T0++;
|
||||
}
|
||||
|
||||
void OPPROTO op_decl_T0(void)
|
||||
{
|
||||
T0--;
|
||||
}
|
||||
|
||||
void OPPROTO op_notl_T0(void)
|
||||
{
|
||||
T0 = ~T0;
|
||||
}
|
||||
|
||||
void OPPROTO op_bswapl_T0(void)
|
||||
{
|
||||
T0 = bswap32(T0);
|
||||
|
||||
518
opc-i386.h
Normal file
518
opc-i386.h
Normal file
@ -0,0 +1,518 @@
|
||||
DEF(end)
|
||||
DEF(movl_A0_EAX)
|
||||
DEF(addl_A0_EAX)
|
||||
DEF(addl_A0_EAX_s1)
|
||||
DEF(addl_A0_EAX_s2)
|
||||
DEF(addl_A0_EAX_s3)
|
||||
DEF(movl_T0_EAX)
|
||||
DEF(movl_T1_EAX)
|
||||
DEF(movh_T0_EAX)
|
||||
DEF(movh_T1_EAX)
|
||||
DEF(movl_EAX_T0)
|
||||
DEF(movl_EAX_T1)
|
||||
DEF(movl_EAX_A0)
|
||||
DEF(cmovw_EAX_T1_T0)
|
||||
DEF(cmovl_EAX_T1_T0)
|
||||
DEF(movw_EAX_T0)
|
||||
DEF(movw_EAX_T1)
|
||||
DEF(movw_EAX_A0)
|
||||
DEF(movb_EAX_T0)
|
||||
DEF(movh_EAX_T0)
|
||||
DEF(movb_EAX_T1)
|
||||
DEF(movh_EAX_T1)
|
||||
DEF(movl_A0_ECX)
|
||||
DEF(addl_A0_ECX)
|
||||
DEF(addl_A0_ECX_s1)
|
||||
DEF(addl_A0_ECX_s2)
|
||||
DEF(addl_A0_ECX_s3)
|
||||
DEF(movl_T0_ECX)
|
||||
DEF(movl_T1_ECX)
|
||||
DEF(movh_T0_ECX)
|
||||
DEF(movh_T1_ECX)
|
||||
DEF(movl_ECX_T0)
|
||||
DEF(movl_ECX_T1)
|
||||
DEF(movl_ECX_A0)
|
||||
DEF(cmovw_ECX_T1_T0)
|
||||
DEF(cmovl_ECX_T1_T0)
|
||||
DEF(movw_ECX_T0)
|
||||
DEF(movw_ECX_T1)
|
||||
DEF(movw_ECX_A0)
|
||||
DEF(movb_ECX_T0)
|
||||
DEF(movh_ECX_T0)
|
||||
DEF(movb_ECX_T1)
|
||||
DEF(movh_ECX_T1)
|
||||
DEF(movl_A0_EDX)
|
||||
DEF(addl_A0_EDX)
|
||||
DEF(addl_A0_EDX_s1)
|
||||
DEF(addl_A0_EDX_s2)
|
||||
DEF(addl_A0_EDX_s3)
|
||||
DEF(movl_T0_EDX)
|
||||
DEF(movl_T1_EDX)
|
||||
DEF(movh_T0_EDX)
|
||||
DEF(movh_T1_EDX)
|
||||
DEF(movl_EDX_T0)
|
||||
DEF(movl_EDX_T1)
|
||||
DEF(movl_EDX_A0)
|
||||
DEF(cmovw_EDX_T1_T0)
|
||||
DEF(cmovl_EDX_T1_T0)
|
||||
DEF(movw_EDX_T0)
|
||||
DEF(movw_EDX_T1)
|
||||
DEF(movw_EDX_A0)
|
||||
DEF(movb_EDX_T0)
|
||||
DEF(movh_EDX_T0)
|
||||
DEF(movb_EDX_T1)
|
||||
DEF(movh_EDX_T1)
|
||||
DEF(movl_A0_EBX)
|
||||
DEF(addl_A0_EBX)
|
||||
DEF(addl_A0_EBX_s1)
|
||||
DEF(addl_A0_EBX_s2)
|
||||
DEF(addl_A0_EBX_s3)
|
||||
DEF(movl_T0_EBX)
|
||||
DEF(movl_T1_EBX)
|
||||
DEF(movh_T0_EBX)
|
||||
DEF(movh_T1_EBX)
|
||||
DEF(movl_EBX_T0)
|
||||
DEF(movl_EBX_T1)
|
||||
DEF(movl_EBX_A0)
|
||||
DEF(cmovw_EBX_T1_T0)
|
||||
DEF(cmovl_EBX_T1_T0)
|
||||
DEF(movw_EBX_T0)
|
||||
DEF(movw_EBX_T1)
|
||||
DEF(movw_EBX_A0)
|
||||
DEF(movb_EBX_T0)
|
||||
DEF(movh_EBX_T0)
|
||||
DEF(movb_EBX_T1)
|
||||
DEF(movh_EBX_T1)
|
||||
DEF(movl_A0_ESP)
|
||||
DEF(addl_A0_ESP)
|
||||
DEF(addl_A0_ESP_s1)
|
||||
DEF(addl_A0_ESP_s2)
|
||||
DEF(addl_A0_ESP_s3)
|
||||
DEF(movl_T0_ESP)
|
||||
DEF(movl_T1_ESP)
|
||||
DEF(movh_T0_ESP)
|
||||
DEF(movh_T1_ESP)
|
||||
DEF(movl_ESP_T0)
|
||||
DEF(movl_ESP_T1)
|
||||
DEF(movl_ESP_A0)
|
||||
DEF(cmovw_ESP_T1_T0)
|
||||
DEF(cmovl_ESP_T1_T0)
|
||||
DEF(movw_ESP_T0)
|
||||
DEF(movw_ESP_T1)
|
||||
DEF(movw_ESP_A0)
|
||||
DEF(movb_ESP_T0)
|
||||
DEF(movh_ESP_T0)
|
||||
DEF(movb_ESP_T1)
|
||||
DEF(movh_ESP_T1)
|
||||
DEF(movl_A0_EBP)
|
||||
DEF(addl_A0_EBP)
|
||||
DEF(addl_A0_EBP_s1)
|
||||
DEF(addl_A0_EBP_s2)
|
||||
DEF(addl_A0_EBP_s3)
|
||||
DEF(movl_T0_EBP)
|
||||
DEF(movl_T1_EBP)
|
||||
DEF(movh_T0_EBP)
|
||||
DEF(movh_T1_EBP)
|
||||
DEF(movl_EBP_T0)
|
||||
DEF(movl_EBP_T1)
|
||||
DEF(movl_EBP_A0)
|
||||
DEF(cmovw_EBP_T1_T0)
|
||||
DEF(cmovl_EBP_T1_T0)
|
||||
DEF(movw_EBP_T0)
|
||||
DEF(movw_EBP_T1)
|
||||
DEF(movw_EBP_A0)
|
||||
DEF(movb_EBP_T0)
|
||||
DEF(movh_EBP_T0)
|
||||
DEF(movb_EBP_T1)
|
||||
DEF(movh_EBP_T1)
|
||||
DEF(movl_A0_ESI)
|
||||
DEF(addl_A0_ESI)
|
||||
DEF(addl_A0_ESI_s1)
|
||||
DEF(addl_A0_ESI_s2)
|
||||
DEF(addl_A0_ESI_s3)
|
||||
DEF(movl_T0_ESI)
|
||||
DEF(movl_T1_ESI)
|
||||
DEF(movh_T0_ESI)
|
||||
DEF(movh_T1_ESI)
|
||||
DEF(movl_ESI_T0)
|
||||
DEF(movl_ESI_T1)
|
||||
DEF(movl_ESI_A0)
|
||||
DEF(cmovw_ESI_T1_T0)
|
||||
DEF(cmovl_ESI_T1_T0)
|
||||
DEF(movw_ESI_T0)
|
||||
DEF(movw_ESI_T1)
|
||||
DEF(movw_ESI_A0)
|
||||
DEF(movb_ESI_T0)
|
||||
DEF(movh_ESI_T0)
|
||||
DEF(movb_ESI_T1)
|
||||
DEF(movh_ESI_T1)
|
||||
DEF(movl_A0_EDI)
|
||||
DEF(addl_A0_EDI)
|
||||
DEF(addl_A0_EDI_s1)
|
||||
DEF(addl_A0_EDI_s2)
|
||||
DEF(addl_A0_EDI_s3)
|
||||
DEF(movl_T0_EDI)
|
||||
DEF(movl_T1_EDI)
|
||||
DEF(movh_T0_EDI)
|
||||
DEF(movh_T1_EDI)
|
||||
DEF(movl_EDI_T0)
|
||||
DEF(movl_EDI_T1)
|
||||
DEF(movl_EDI_A0)
|
||||
DEF(cmovw_EDI_T1_T0)
|
||||
DEF(cmovl_EDI_T1_T0)
|
||||
DEF(movw_EDI_T0)
|
||||
DEF(movw_EDI_T1)
|
||||
DEF(movw_EDI_A0)
|
||||
DEF(movb_EDI_T0)
|
||||
DEF(movh_EDI_T0)
|
||||
DEF(movb_EDI_T1)
|
||||
DEF(movh_EDI_T1)
|
||||
DEF(addl_T0_T1_cc)
|
||||
DEF(orl_T0_T1_cc)
|
||||
DEF(andl_T0_T1_cc)
|
||||
DEF(subl_T0_T1_cc)
|
||||
DEF(xorl_T0_T1_cc)
|
||||
DEF(cmpl_T0_T1_cc)
|
||||
DEF(negl_T0_cc)
|
||||
DEF(incl_T0_cc)
|
||||
DEF(decl_T0_cc)
|
||||
DEF(testl_T0_T1_cc)
|
||||
DEF(addl_T0_T1)
|
||||
DEF(orl_T0_T1)
|
||||
DEF(andl_T0_T1)
|
||||
DEF(subl_T0_T1)
|
||||
DEF(xorl_T0_T1)
|
||||
DEF(negl_T0)
|
||||
DEF(incl_T0)
|
||||
DEF(decl_T0)
|
||||
DEF(notl_T0)
|
||||
DEF(bswapl_T0)
|
||||
DEF(mulb_AL_T0)
|
||||
DEF(imulb_AL_T0)
|
||||
DEF(mulw_AX_T0)
|
||||
DEF(imulw_AX_T0)
|
||||
DEF(mull_EAX_T0)
|
||||
DEF(imull_EAX_T0)
|
||||
DEF(imulw_T0_T1)
|
||||
DEF(imull_T0_T1)
|
||||
DEF(divb_AL_T0)
|
||||
DEF(idivb_AL_T0)
|
||||
DEF(divw_AX_T0)
|
||||
DEF(idivw_AX_T0)
|
||||
DEF(divl_EAX_T0)
|
||||
DEF(idivl_EAX_T0)
|
||||
DEF(movl_T0_im)
|
||||
DEF(movl_T1_im)
|
||||
DEF(movl_A0_im)
|
||||
DEF(addl_A0_im)
|
||||
DEF(andl_A0_ffff)
|
||||
DEF(ldub_T0_A0)
|
||||
DEF(ldsb_T0_A0)
|
||||
DEF(lduw_T0_A0)
|
||||
DEF(ldsw_T0_A0)
|
||||
DEF(ldl_T0_A0)
|
||||
DEF(ldub_T1_A0)
|
||||
DEF(ldsb_T1_A0)
|
||||
DEF(lduw_T1_A0)
|
||||
DEF(ldsw_T1_A0)
|
||||
DEF(ldl_T1_A0)
|
||||
DEF(stb_T0_A0)
|
||||
DEF(stw_T0_A0)
|
||||
DEF(stl_T0_A0)
|
||||
DEF(add_bitw_A0_T1)
|
||||
DEF(add_bitl_A0_T1)
|
||||
DEF(jmp_T0)
|
||||
DEF(jmp_im)
|
||||
DEF(int_im)
|
||||
DEF(int3)
|
||||
DEF(into)
|
||||
DEF(jb_subb)
|
||||
DEF(jz_subb)
|
||||
DEF(jbe_subb)
|
||||
DEF(js_subb)
|
||||
DEF(jl_subb)
|
||||
DEF(jle_subb)
|
||||
DEF(setb_T0_subb)
|
||||
DEF(setz_T0_subb)
|
||||
DEF(setbe_T0_subb)
|
||||
DEF(sets_T0_subb)
|
||||
DEF(setl_T0_subb)
|
||||
DEF(setle_T0_subb)
|
||||
DEF(rolb_T0_T1_cc)
|
||||
DEF(rolb_T0_T1)
|
||||
DEF(rorb_T0_T1_cc)
|
||||
DEF(rorb_T0_T1)
|
||||
DEF(rclb_T0_T1_cc)
|
||||
DEF(rcrb_T0_T1_cc)
|
||||
DEF(shlb_T0_T1_cc)
|
||||
DEF(shlb_T0_T1)
|
||||
DEF(shrb_T0_T1_cc)
|
||||
DEF(shrb_T0_T1)
|
||||
DEF(sarb_T0_T1_cc)
|
||||
DEF(sarb_T0_T1)
|
||||
DEF(adcb_T0_T1_cc)
|
||||
DEF(sbbb_T0_T1_cc)
|
||||
DEF(cmpxchgb_T0_T1_EAX_cc)
|
||||
DEF(movsb)
|
||||
DEF(rep_movsb)
|
||||
DEF(stosb)
|
||||
DEF(rep_stosb)
|
||||
DEF(lodsb)
|
||||
DEF(rep_lodsb)
|
||||
DEF(scasb)
|
||||
DEF(repz_scasb)
|
||||
DEF(repnz_scasb)
|
||||
DEF(cmpsb)
|
||||
DEF(repz_cmpsb)
|
||||
DEF(repnz_cmpsb)
|
||||
DEF(outsb)
|
||||
DEF(rep_outsb)
|
||||
DEF(insb)
|
||||
DEF(rep_insb)
|
||||
DEF(outb_T0_T1)
|
||||
DEF(inb_T0_T1)
|
||||
DEF(jb_subw)
|
||||
DEF(jz_subw)
|
||||
DEF(jbe_subw)
|
||||
DEF(js_subw)
|
||||
DEF(jl_subw)
|
||||
DEF(jle_subw)
|
||||
DEF(loopnzw)
|
||||
DEF(loopzw)
|
||||
DEF(loopw)
|
||||
DEF(jecxzw)
|
||||
DEF(setb_T0_subw)
|
||||
DEF(setz_T0_subw)
|
||||
DEF(setbe_T0_subw)
|
||||
DEF(sets_T0_subw)
|
||||
DEF(setl_T0_subw)
|
||||
DEF(setle_T0_subw)
|
||||
DEF(rolw_T0_T1_cc)
|
||||
DEF(rolw_T0_T1)
|
||||
DEF(rorw_T0_T1_cc)
|
||||
DEF(rorw_T0_T1)
|
||||
DEF(rclw_T0_T1_cc)
|
||||
DEF(rcrw_T0_T1_cc)
|
||||
DEF(shlw_T0_T1_cc)
|
||||
DEF(shlw_T0_T1)
|
||||
DEF(shrw_T0_T1_cc)
|
||||
DEF(shrw_T0_T1)
|
||||
DEF(sarw_T0_T1_cc)
|
||||
DEF(sarw_T0_T1)
|
||||
DEF(shldw_T0_T1_im_cc)
|
||||
DEF(shldw_T0_T1_ECX_cc)
|
||||
DEF(shrdw_T0_T1_im_cc)
|
||||
DEF(shrdw_T0_T1_ECX_cc)
|
||||
DEF(adcw_T0_T1_cc)
|
||||
DEF(sbbw_T0_T1_cc)
|
||||
DEF(cmpxchgw_T0_T1_EAX_cc)
|
||||
DEF(btw_T0_T1_cc)
|
||||
DEF(btsw_T0_T1_cc)
|
||||
DEF(btrw_T0_T1_cc)
|
||||
DEF(btcw_T0_T1_cc)
|
||||
DEF(bsfw_T0_cc)
|
||||
DEF(bsrw_T0_cc)
|
||||
DEF(movsw)
|
||||
DEF(rep_movsw)
|
||||
DEF(stosw)
|
||||
DEF(rep_stosw)
|
||||
DEF(lodsw)
|
||||
DEF(rep_lodsw)
|
||||
DEF(scasw)
|
||||
DEF(repz_scasw)
|
||||
DEF(repnz_scasw)
|
||||
DEF(cmpsw)
|
||||
DEF(repz_cmpsw)
|
||||
DEF(repnz_cmpsw)
|
||||
DEF(outsw)
|
||||
DEF(rep_outsw)
|
||||
DEF(insw)
|
||||
DEF(rep_insw)
|
||||
DEF(outw_T0_T1)
|
||||
DEF(inw_T0_T1)
|
||||
DEF(jb_subl)
|
||||
DEF(jz_subl)
|
||||
DEF(jbe_subl)
|
||||
DEF(js_subl)
|
||||
DEF(jl_subl)
|
||||
DEF(jle_subl)
|
||||
DEF(loopnzl)
|
||||
DEF(loopzl)
|
||||
DEF(loopl)
|
||||
DEF(jecxzl)
|
||||
DEF(setb_T0_subl)
|
||||
DEF(setz_T0_subl)
|
||||
DEF(setbe_T0_subl)
|
||||
DEF(sets_T0_subl)
|
||||
DEF(setl_T0_subl)
|
||||
DEF(setle_T0_subl)
|
||||
DEF(roll_T0_T1_cc)
|
||||
DEF(roll_T0_T1)
|
||||
DEF(rorl_T0_T1_cc)
|
||||
DEF(rorl_T0_T1)
|
||||
DEF(rcll_T0_T1_cc)
|
||||
DEF(rcrl_T0_T1_cc)
|
||||
DEF(shll_T0_T1_cc)
|
||||
DEF(shll_T0_T1)
|
||||
DEF(shrl_T0_T1_cc)
|
||||
DEF(shrl_T0_T1)
|
||||
DEF(sarl_T0_T1_cc)
|
||||
DEF(sarl_T0_T1)
|
||||
DEF(shldl_T0_T1_im_cc)
|
||||
DEF(shldl_T0_T1_ECX_cc)
|
||||
DEF(shrdl_T0_T1_im_cc)
|
||||
DEF(shrdl_T0_T1_ECX_cc)
|
||||
DEF(adcl_T0_T1_cc)
|
||||
DEF(sbbl_T0_T1_cc)
|
||||
DEF(cmpxchgl_T0_T1_EAX_cc)
|
||||
DEF(btl_T0_T1_cc)
|
||||
DEF(btsl_T0_T1_cc)
|
||||
DEF(btrl_T0_T1_cc)
|
||||
DEF(btcl_T0_T1_cc)
|
||||
DEF(bsfl_T0_cc)
|
||||
DEF(bsrl_T0_cc)
|
||||
DEF(movsl)
|
||||
DEF(rep_movsl)
|
||||
DEF(stosl)
|
||||
DEF(rep_stosl)
|
||||
DEF(lodsl)
|
||||
DEF(rep_lodsl)
|
||||
DEF(scasl)
|
||||
DEF(repz_scasl)
|
||||
DEF(repnz_scasl)
|
||||
DEF(cmpsl)
|
||||
DEF(repz_cmpsl)
|
||||
DEF(repnz_cmpsl)
|
||||
DEF(outsl)
|
||||
DEF(rep_outsl)
|
||||
DEF(insl)
|
||||
DEF(rep_insl)
|
||||
DEF(outl_T0_T1)
|
||||
DEF(inl_T0_T1)
|
||||
DEF(movsbl_T0_T0)
|
||||
DEF(movzbl_T0_T0)
|
||||
DEF(movswl_T0_T0)
|
||||
DEF(movzwl_T0_T0)
|
||||
DEF(movswl_EAX_AX)
|
||||
DEF(movsbw_AX_AL)
|
||||
DEF(movslq_EDX_EAX)
|
||||
DEF(movswl_DX_AX)
|
||||
DEF(pushl_T0)
|
||||
DEF(pushl_T1)
|
||||
DEF(popl_T0)
|
||||
DEF(addl_ESP_im)
|
||||
DEF(pushal)
|
||||
DEF(pushaw)
|
||||
DEF(popal)
|
||||
DEF(popaw)
|
||||
DEF(enterl)
|
||||
DEF(rdtsc)
|
||||
DEF(aam)
|
||||
DEF(aad)
|
||||
DEF(aaa)
|
||||
DEF(aas)
|
||||
DEF(daa)
|
||||
DEF(das)
|
||||
DEF(movl_seg_T0)
|
||||
DEF(movl_T0_seg)
|
||||
DEF(addl_A0_seg)
|
||||
DEF(jo_cc)
|
||||
DEF(jb_cc)
|
||||
DEF(jz_cc)
|
||||
DEF(jbe_cc)
|
||||
DEF(js_cc)
|
||||
DEF(jp_cc)
|
||||
DEF(jl_cc)
|
||||
DEF(jle_cc)
|
||||
DEF(seto_T0_cc)
|
||||
DEF(setb_T0_cc)
|
||||
DEF(setz_T0_cc)
|
||||
DEF(setbe_T0_cc)
|
||||
DEF(sets_T0_cc)
|
||||
DEF(setp_T0_cc)
|
||||
DEF(setl_T0_cc)
|
||||
DEF(setle_T0_cc)
|
||||
DEF(xor_T0_1)
|
||||
DEF(set_cc_op)
|
||||
DEF(movl_eflags_T0)
|
||||
DEF(movb_eflags_T0)
|
||||
DEF(movl_T0_eflags)
|
||||
DEF(cld)
|
||||
DEF(std)
|
||||
DEF(clc)
|
||||
DEF(stc)
|
||||
DEF(cmc)
|
||||
DEF(salc)
|
||||
DEF(flds_FT0_A0)
|
||||
DEF(fldl_FT0_A0)
|
||||
DEF(fild_FT0_A0)
|
||||
DEF(fildl_FT0_A0)
|
||||
DEF(fildll_FT0_A0)
|
||||
DEF(flds_ST0_A0)
|
||||
DEF(fldl_ST0_A0)
|
||||
DEF(fldt_ST0_A0)
|
||||
DEF(fild_ST0_A0)
|
||||
DEF(fildl_ST0_A0)
|
||||
DEF(fildll_ST0_A0)
|
||||
DEF(fsts_ST0_A0)
|
||||
DEF(fstl_ST0_A0)
|
||||
DEF(fstt_ST0_A0)
|
||||
DEF(fist_ST0_A0)
|
||||
DEF(fistl_ST0_A0)
|
||||
DEF(fistll_ST0_A0)
|
||||
DEF(fbld_ST0_A0)
|
||||
DEF(fbst_ST0_A0)
|
||||
DEF(fpush)
|
||||
DEF(fpop)
|
||||
DEF(fdecstp)
|
||||
DEF(fincstp)
|
||||
DEF(fmov_ST0_FT0)
|
||||
DEF(fmov_FT0_STN)
|
||||
DEF(fmov_ST0_STN)
|
||||
DEF(fmov_STN_ST0)
|
||||
DEF(fxchg_ST0_STN)
|
||||
DEF(fcom_ST0_FT0)
|
||||
DEF(fucom_ST0_FT0)
|
||||
DEF(fadd_ST0_FT0)
|
||||
DEF(fmul_ST0_FT0)
|
||||
DEF(fsub_ST0_FT0)
|
||||
DEF(fsubr_ST0_FT0)
|
||||
DEF(fdiv_ST0_FT0)
|
||||
DEF(fdivr_ST0_FT0)
|
||||
DEF(fadd_STN_ST0)
|
||||
DEF(fmul_STN_ST0)
|
||||
DEF(fsub_STN_ST0)
|
||||
DEF(fsubr_STN_ST0)
|
||||
DEF(fdiv_STN_ST0)
|
||||
DEF(fdivr_STN_ST0)
|
||||
DEF(fchs_ST0)
|
||||
DEF(fabs_ST0)
|
||||
DEF(fxam_ST0)
|
||||
DEF(fld1_ST0)
|
||||
DEF(fldl2t_ST0)
|
||||
DEF(fldl2e_ST0)
|
||||
DEF(fldpi_ST0)
|
||||
DEF(fldlg2_ST0)
|
||||
DEF(fldln2_ST0)
|
||||
DEF(fldz_ST0)
|
||||
DEF(fldz_FT0)
|
||||
DEF(f2xm1)
|
||||
DEF(fyl2x)
|
||||
DEF(fptan)
|
||||
DEF(fpatan)
|
||||
DEF(fxtract)
|
||||
DEF(fprem1)
|
||||
DEF(fprem)
|
||||
DEF(fyl2xp1)
|
||||
DEF(fsqrt)
|
||||
DEF(fsincos)
|
||||
DEF(frndint)
|
||||
DEF(fscale)
|
||||
DEF(fsin)
|
||||
DEF(fcos)
|
||||
DEF(fnstsw_A0)
|
||||
DEF(fnstsw_EAX)
|
||||
DEF(fnstcw_A0)
|
||||
DEF(fldcw_A0)
|
||||
DEF(fclex)
|
||||
DEF(fninit)
|
||||
@ -385,7 +385,6 @@ void OPPROTO glue(op_setle_T0_sub, SUFFIX)(void)
|
||||
void OPPROTO glue(glue(op_rol, SUFFIX), _T0_T1_cc)(void)
|
||||
{
|
||||
int count, src;
|
||||
/* XXX: testing */
|
||||
count = T1 & SHIFT_MASK;
|
||||
if (count) {
|
||||
CC_SRC = cc_table[CC_OP].compute_all() & ~(CC_O | CC_C);
|
||||
@ -399,6 +398,17 @@ void OPPROTO glue(glue(op_rol, SUFFIX), _T0_T1_cc)(void)
|
||||
FORCE_RET();
|
||||
}
|
||||
|
||||
void OPPROTO glue(glue(op_rol, SUFFIX), _T0_T1)(void)
|
||||
{
|
||||
int count;
|
||||
count = T1 & SHIFT_MASK;
|
||||
if (count) {
|
||||
T0 &= DATA_MASK;
|
||||
T0 = (T0 << count) | (T0 >> (DATA_BITS - count));
|
||||
}
|
||||
FORCE_RET();
|
||||
}
|
||||
|
||||
void OPPROTO glue(glue(op_ror, SUFFIX), _T0_T1_cc)(void)
|
||||
{
|
||||
int count, src;
|
||||
@ -415,6 +425,17 @@ void OPPROTO glue(glue(op_ror, SUFFIX), _T0_T1_cc)(void)
|
||||
FORCE_RET();
|
||||
}
|
||||
|
||||
void OPPROTO glue(glue(op_ror, SUFFIX), _T0_T1)(void)
|
||||
{
|
||||
int count;
|
||||
count = T1 & SHIFT_MASK;
|
||||
if (count) {
|
||||
T0 &= DATA_MASK;
|
||||
T0 = (T0 >> count) | (T0 << (DATA_BITS - count));
|
||||
}
|
||||
FORCE_RET();
|
||||
}
|
||||
|
||||
void OPPROTO glue(glue(op_rcl, SUFFIX), _T0_T1_cc)(void)
|
||||
{
|
||||
int count, res, eflags;
|
||||
@ -482,6 +503,14 @@ void OPPROTO glue(glue(op_shl, SUFFIX), _T0_T1_cc)(void)
|
||||
FORCE_RET();
|
||||
}
|
||||
|
||||
void OPPROTO glue(glue(op_shl, SUFFIX), _T0_T1)(void)
|
||||
{
|
||||
int count;
|
||||
count = T1 & 0x1f;
|
||||
T0 = T0 << count;
|
||||
FORCE_RET();
|
||||
}
|
||||
|
||||
void OPPROTO glue(glue(op_shr, SUFFIX), _T0_T1_cc)(void)
|
||||
{
|
||||
int count;
|
||||
@ -496,6 +525,15 @@ void OPPROTO glue(glue(op_shr, SUFFIX), _T0_T1_cc)(void)
|
||||
FORCE_RET();
|
||||
}
|
||||
|
||||
void OPPROTO glue(glue(op_shr, SUFFIX), _T0_T1)(void)
|
||||
{
|
||||
int count;
|
||||
count = T1 & 0x1f;
|
||||
T0 &= DATA_MASK;
|
||||
T0 = T0 >> count;
|
||||
FORCE_RET();
|
||||
}
|
||||
|
||||
void OPPROTO glue(glue(op_sar, SUFFIX), _T0_T1_cc)(void)
|
||||
{
|
||||
int count, src;
|
||||
@ -510,6 +548,15 @@ void OPPROTO glue(glue(op_sar, SUFFIX), _T0_T1_cc)(void)
|
||||
FORCE_RET();
|
||||
}
|
||||
|
||||
void OPPROTO glue(glue(op_sar, SUFFIX), _T0_T1)(void)
|
||||
{
|
||||
int count, src;
|
||||
count = T1 & 0x1f;
|
||||
src = (DATA_STYPE)T0;
|
||||
T0 = src >> count;
|
||||
FORCE_RET();
|
||||
}
|
||||
|
||||
#if DATA_BITS == 16
|
||||
/* XXX: overflow flag might be incorrect in some cases in shldw */
|
||||
void OPPROTO glue(glue(op_shld, SUFFIX), _T0_T1_im_cc)(void)
|
||||
|
||||
387
translate-i386.c
387
translate-i386.c
@ -38,7 +38,8 @@
|
||||
#define offsetof(type, field) ((size_t) &((type *)0)->field)
|
||||
#endif
|
||||
|
||||
static uint8_t *gen_code_ptr;
|
||||
static uint16_t *gen_opc_ptr;
|
||||
static uint32_t *gen_opparam_ptr;
|
||||
int __op_param1, __op_param2, __op_param3;
|
||||
|
||||
extern FILE *logfile;
|
||||
@ -95,6 +96,13 @@ enum {
|
||||
OP_SAR = 7,
|
||||
};
|
||||
|
||||
enum {
|
||||
#define DEF(s) INDEX_op_ ## s,
|
||||
#include "opc-i386.h"
|
||||
#undef DEF
|
||||
NB_OPS,
|
||||
};
|
||||
|
||||
#include "op-i386.h"
|
||||
|
||||
/* operand size */
|
||||
@ -1922,7 +1930,7 @@ long disas_insn(DisasContext *s, uint8_t *pc_start)
|
||||
if (mod == 3)
|
||||
goto illegal_op;
|
||||
gen_op_ld_T1_A0[ot]();
|
||||
op_addl_A0_im(1 << (ot - OT_WORD + 1));
|
||||
gen_op_addl_A0_im(1 << (ot - OT_WORD + 1));
|
||||
/* load the segment first to handle exceptions properly */
|
||||
gen_op_lduw_T0_A0();
|
||||
gen_movl_seg_T0(s, op);
|
||||
@ -2842,24 +2850,350 @@ long disas_insn(DisasContext *s, uint8_t *pc_start)
|
||||
return -1;
|
||||
}
|
||||
|
||||
#define CC_OSZAPC (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C)
|
||||
#define CC_OSZAP (CC_O | CC_S | CC_Z | CC_A | CC_P)
|
||||
|
||||
/* flags read by an operation */
|
||||
static uint16_t opc_read_flags[NB_OPS] = {
|
||||
[INDEX_op_aas] = CC_A,
|
||||
[INDEX_op_aaa] = CC_A,
|
||||
[INDEX_op_das] = CC_A | CC_C,
|
||||
[INDEX_op_daa] = CC_A | CC_C,
|
||||
|
||||
[INDEX_op_adcb_T0_T1_cc] = CC_C,
|
||||
[INDEX_op_adcw_T0_T1_cc] = CC_C,
|
||||
[INDEX_op_adcl_T0_T1_cc] = CC_C,
|
||||
[INDEX_op_sbbb_T0_T1_cc] = CC_C,
|
||||
[INDEX_op_sbbw_T0_T1_cc] = CC_C,
|
||||
[INDEX_op_sbbl_T0_T1_cc] = CC_C,
|
||||
|
||||
[INDEX_op_into] = CC_O,
|
||||
|
||||
[INDEX_op_jo_cc] = CC_O,
|
||||
[INDEX_op_jb_cc] = CC_C,
|
||||
[INDEX_op_jz_cc] = CC_Z,
|
||||
[INDEX_op_jbe_cc] = CC_Z | CC_C,
|
||||
[INDEX_op_js_cc] = CC_S,
|
||||
[INDEX_op_jp_cc] = CC_P,
|
||||
[INDEX_op_jl_cc] = CC_O | CC_S,
|
||||
[INDEX_op_jle_cc] = CC_O | CC_S | CC_Z,
|
||||
|
||||
[INDEX_op_jb_subb] = CC_C,
|
||||
[INDEX_op_jb_subw] = CC_C,
|
||||
[INDEX_op_jb_subl] = CC_C,
|
||||
|
||||
[INDEX_op_jz_subb] = CC_Z,
|
||||
[INDEX_op_jz_subw] = CC_Z,
|
||||
[INDEX_op_jz_subl] = CC_Z,
|
||||
|
||||
[INDEX_op_jbe_subb] = CC_Z | CC_C,
|
||||
[INDEX_op_jbe_subw] = CC_Z | CC_C,
|
||||
[INDEX_op_jbe_subl] = CC_Z | CC_C,
|
||||
|
||||
[INDEX_op_js_subb] = CC_S,
|
||||
[INDEX_op_js_subw] = CC_S,
|
||||
[INDEX_op_js_subl] = CC_S,
|
||||
|
||||
[INDEX_op_jl_subb] = CC_O | CC_S,
|
||||
[INDEX_op_jl_subw] = CC_O | CC_S,
|
||||
[INDEX_op_jl_subl] = CC_O | CC_S,
|
||||
|
||||
[INDEX_op_jle_subb] = CC_O | CC_S | CC_Z,
|
||||
[INDEX_op_jle_subw] = CC_O | CC_S | CC_Z,
|
||||
[INDEX_op_jle_subl] = CC_O | CC_S | CC_Z,
|
||||
|
||||
[INDEX_op_loopnzw] = CC_Z,
|
||||
[INDEX_op_loopnzl] = CC_Z,
|
||||
[INDEX_op_loopzw] = CC_Z,
|
||||
[INDEX_op_loopzl] = CC_Z,
|
||||
|
||||
[INDEX_op_seto_T0_cc] = CC_O,
|
||||
[INDEX_op_setb_T0_cc] = CC_C,
|
||||
[INDEX_op_setz_T0_cc] = CC_Z,
|
||||
[INDEX_op_setbe_T0_cc] = CC_Z | CC_C,
|
||||
[INDEX_op_sets_T0_cc] = CC_S,
|
||||
[INDEX_op_setp_T0_cc] = CC_P,
|
||||
[INDEX_op_setl_T0_cc] = CC_O | CC_S,
|
||||
[INDEX_op_setle_T0_cc] = CC_O | CC_S | CC_Z,
|
||||
|
||||
[INDEX_op_setb_T0_subb] = CC_C,
|
||||
[INDEX_op_setb_T0_subw] = CC_C,
|
||||
[INDEX_op_setb_T0_subl] = CC_C,
|
||||
|
||||
[INDEX_op_setz_T0_subb] = CC_Z,
|
||||
[INDEX_op_setz_T0_subw] = CC_Z,
|
||||
[INDEX_op_setz_T0_subl] = CC_Z,
|
||||
|
||||
[INDEX_op_setbe_T0_subb] = CC_Z | CC_C,
|
||||
[INDEX_op_setbe_T0_subw] = CC_Z | CC_C,
|
||||
[INDEX_op_setbe_T0_subl] = CC_Z | CC_C,
|
||||
|
||||
[INDEX_op_sets_T0_subb] = CC_S,
|
||||
[INDEX_op_sets_T0_subw] = CC_S,
|
||||
[INDEX_op_sets_T0_subl] = CC_S,
|
||||
|
||||
[INDEX_op_setl_T0_subb] = CC_O | CC_S,
|
||||
[INDEX_op_setl_T0_subw] = CC_O | CC_S,
|
||||
[INDEX_op_setl_T0_subl] = CC_O | CC_S,
|
||||
|
||||
[INDEX_op_setle_T0_subb] = CC_O | CC_S | CC_Z,
|
||||
[INDEX_op_setle_T0_subw] = CC_O | CC_S | CC_Z,
|
||||
[INDEX_op_setle_T0_subl] = CC_O | CC_S | CC_Z,
|
||||
|
||||
[INDEX_op_movl_T0_eflags] = CC_OSZAPC,
|
||||
[INDEX_op_cmc] = CC_C,
|
||||
[INDEX_op_salc] = CC_C,
|
||||
|
||||
[INDEX_op_rclb_T0_T1_cc] = CC_C,
|
||||
[INDEX_op_rclw_T0_T1_cc] = CC_C,
|
||||
[INDEX_op_rcll_T0_T1_cc] = CC_C,
|
||||
[INDEX_op_rcrb_T0_T1_cc] = CC_C,
|
||||
[INDEX_op_rcrw_T0_T1_cc] = CC_C,
|
||||
[INDEX_op_rcrl_T0_T1_cc] = CC_C,
|
||||
};
|
||||
|
||||
/* flags written by an operation */
|
||||
static uint16_t opc_write_flags[NB_OPS] = {
|
||||
[INDEX_op_addl_T0_T1_cc] = CC_OSZAPC,
|
||||
[INDEX_op_orl_T0_T1_cc] = CC_OSZAPC,
|
||||
[INDEX_op_adcb_T0_T1_cc] = CC_OSZAPC,
|
||||
[INDEX_op_adcw_T0_T1_cc] = CC_OSZAPC,
|
||||
[INDEX_op_adcl_T0_T1_cc] = CC_OSZAPC,
|
||||
[INDEX_op_sbbb_T0_T1_cc] = CC_OSZAPC,
|
||||
[INDEX_op_sbbw_T0_T1_cc] = CC_OSZAPC,
|
||||
[INDEX_op_sbbl_T0_T1_cc] = CC_OSZAPC,
|
||||
[INDEX_op_andl_T0_T1_cc] = CC_OSZAPC,
|
||||
[INDEX_op_subl_T0_T1_cc] = CC_OSZAPC,
|
||||
[INDEX_op_xorl_T0_T1_cc] = CC_OSZAPC,
|
||||
[INDEX_op_cmpl_T0_T1_cc] = CC_OSZAPC,
|
||||
[INDEX_op_negl_T0_cc] = CC_OSZAPC,
|
||||
[INDEX_op_incl_T0_cc] = CC_OSZAP,
|
||||
[INDEX_op_decl_T0_cc] = CC_OSZAP,
|
||||
[INDEX_op_testl_T0_T1_cc] = CC_OSZAPC,
|
||||
|
||||
[INDEX_op_mulb_AL_T0] = CC_OSZAPC,
|
||||
[INDEX_op_imulb_AL_T0] = CC_OSZAPC,
|
||||
[INDEX_op_mulw_AX_T0] = CC_OSZAPC,
|
||||
[INDEX_op_imulw_AX_T0] = CC_OSZAPC,
|
||||
[INDEX_op_mull_EAX_T0] = CC_OSZAPC,
|
||||
[INDEX_op_imull_EAX_T0] = CC_OSZAPC,
|
||||
[INDEX_op_imulw_T0_T1] = CC_OSZAPC,
|
||||
[INDEX_op_imull_T0_T1] = CC_OSZAPC,
|
||||
|
||||
/* bcd */
|
||||
[INDEX_op_aam] = CC_OSZAPC,
|
||||
[INDEX_op_aad] = CC_OSZAPC,
|
||||
[INDEX_op_aas] = CC_OSZAPC,
|
||||
[INDEX_op_aaa] = CC_OSZAPC,
|
||||
[INDEX_op_das] = CC_OSZAPC,
|
||||
[INDEX_op_daa] = CC_OSZAPC,
|
||||
|
||||
[INDEX_op_movb_eflags_T0] = CC_S | CC_Z | CC_A | CC_P | CC_C,
|
||||
[INDEX_op_movl_eflags_T0] = CC_OSZAPC,
|
||||
[INDEX_op_clc] = CC_C,
|
||||
[INDEX_op_stc] = CC_C,
|
||||
[INDEX_op_cmc] = CC_C,
|
||||
|
||||
[INDEX_op_rolb_T0_T1_cc] = CC_O | CC_C,
|
||||
[INDEX_op_rolw_T0_T1_cc] = CC_O | CC_C,
|
||||
[INDEX_op_roll_T0_T1_cc] = CC_O | CC_C,
|
||||
[INDEX_op_rorb_T0_T1_cc] = CC_O | CC_C,
|
||||
[INDEX_op_rorw_T0_T1_cc] = CC_O | CC_C,
|
||||
[INDEX_op_rorl_T0_T1_cc] = CC_O | CC_C,
|
||||
|
||||
[INDEX_op_rclb_T0_T1_cc] = CC_O | CC_C,
|
||||
[INDEX_op_rclw_T0_T1_cc] = CC_O | CC_C,
|
||||
[INDEX_op_rcll_T0_T1_cc] = CC_O | CC_C,
|
||||
[INDEX_op_rcrb_T0_T1_cc] = CC_O | CC_C,
|
||||
[INDEX_op_rcrw_T0_T1_cc] = CC_O | CC_C,
|
||||
[INDEX_op_rcrl_T0_T1_cc] = CC_O | CC_C,
|
||||
|
||||
[INDEX_op_shlb_T0_T1_cc] = CC_OSZAPC,
|
||||
[INDEX_op_shlw_T0_T1_cc] = CC_OSZAPC,
|
||||
[INDEX_op_shll_T0_T1_cc] = CC_OSZAPC,
|
||||
|
||||
[INDEX_op_shrb_T0_T1_cc] = CC_OSZAPC,
|
||||
[INDEX_op_shrw_T0_T1_cc] = CC_OSZAPC,
|
||||
[INDEX_op_shrl_T0_T1_cc] = CC_OSZAPC,
|
||||
|
||||
[INDEX_op_sarb_T0_T1_cc] = CC_OSZAPC,
|
||||
[INDEX_op_sarw_T0_T1_cc] = CC_OSZAPC,
|
||||
[INDEX_op_sarl_T0_T1_cc] = CC_OSZAPC,
|
||||
|
||||
[INDEX_op_shldw_T0_T1_ECX_cc] = CC_OSZAPC,
|
||||
[INDEX_op_shldl_T0_T1_ECX_cc] = CC_OSZAPC,
|
||||
[INDEX_op_shldw_T0_T1_im_cc] = CC_OSZAPC,
|
||||
[INDEX_op_shldl_T0_T1_im_cc] = CC_OSZAPC,
|
||||
|
||||
[INDEX_op_shrdw_T0_T1_ECX_cc] = CC_OSZAPC,
|
||||
[INDEX_op_shrdl_T0_T1_ECX_cc] = CC_OSZAPC,
|
||||
[INDEX_op_shrdw_T0_T1_im_cc] = CC_OSZAPC,
|
||||
[INDEX_op_shrdl_T0_T1_im_cc] = CC_OSZAPC,
|
||||
|
||||
[INDEX_op_btw_T0_T1_cc] = CC_OSZAPC,
|
||||
[INDEX_op_btl_T0_T1_cc] = CC_OSZAPC,
|
||||
[INDEX_op_btsw_T0_T1_cc] = CC_OSZAPC,
|
||||
[INDEX_op_btsl_T0_T1_cc] = CC_OSZAPC,
|
||||
[INDEX_op_btrw_T0_T1_cc] = CC_OSZAPC,
|
||||
[INDEX_op_btrl_T0_T1_cc] = CC_OSZAPC,
|
||||
[INDEX_op_btcw_T0_T1_cc] = CC_OSZAPC,
|
||||
[INDEX_op_btcl_T0_T1_cc] = CC_OSZAPC,
|
||||
|
||||
[INDEX_op_bsfw_T0_cc] = CC_OSZAPC,
|
||||
[INDEX_op_bsfl_T0_cc] = CC_OSZAPC,
|
||||
[INDEX_op_bsrw_T0_cc] = CC_OSZAPC,
|
||||
[INDEX_op_bsrl_T0_cc] = CC_OSZAPC,
|
||||
|
||||
[INDEX_op_scasb] = CC_OSZAPC,
|
||||
[INDEX_op_scasw] = CC_OSZAPC,
|
||||
[INDEX_op_scasl] = CC_OSZAPC,
|
||||
[INDEX_op_repz_scasb] = CC_OSZAPC,
|
||||
[INDEX_op_repz_scasw] = CC_OSZAPC,
|
||||
[INDEX_op_repz_scasl] = CC_OSZAPC,
|
||||
[INDEX_op_repnz_scasb] = CC_OSZAPC,
|
||||
[INDEX_op_repnz_scasw] = CC_OSZAPC,
|
||||
[INDEX_op_repnz_scasl] = CC_OSZAPC,
|
||||
|
||||
[INDEX_op_cmpsb] = CC_OSZAPC,
|
||||
[INDEX_op_cmpsw] = CC_OSZAPC,
|
||||
[INDEX_op_cmpsl] = CC_OSZAPC,
|
||||
[INDEX_op_repz_cmpsb] = CC_OSZAPC,
|
||||
[INDEX_op_repz_cmpsw] = CC_OSZAPC,
|
||||
[INDEX_op_repz_cmpsl] = CC_OSZAPC,
|
||||
[INDEX_op_repnz_cmpsb] = CC_OSZAPC,
|
||||
[INDEX_op_repnz_cmpsw] = CC_OSZAPC,
|
||||
[INDEX_op_repnz_cmpsl] = CC_OSZAPC,
|
||||
|
||||
[INDEX_op_cmpxchgw_T0_T1_EAX_cc] = CC_OSZAPC,
|
||||
[INDEX_op_cmpxchgl_T0_T1_EAX_cc] = CC_OSZAPC,
|
||||
};
|
||||
|
||||
/* simpler form of an operation if no flags need to be generated */
|
||||
static uint16_t opc_simpler[NB_OPS] = {
|
||||
[INDEX_op_addl_T0_T1_cc] = INDEX_op_addl_T0_T1,
|
||||
[INDEX_op_orl_T0_T1_cc] = INDEX_op_orl_T0_T1,
|
||||
[INDEX_op_andl_T0_T1_cc] = INDEX_op_andl_T0_T1,
|
||||
[INDEX_op_subl_T0_T1_cc] = INDEX_op_subl_T0_T1,
|
||||
[INDEX_op_xorl_T0_T1_cc] = INDEX_op_xorl_T0_T1,
|
||||
[INDEX_op_negl_T0_cc] = INDEX_op_negl_T0,
|
||||
[INDEX_op_incl_T0_cc] = INDEX_op_incl_T0,
|
||||
[INDEX_op_decl_T0_cc] = INDEX_op_decl_T0,
|
||||
|
||||
[INDEX_op_rolb_T0_T1_cc] = INDEX_op_rolb_T0_T1,
|
||||
[INDEX_op_rolw_T0_T1_cc] = INDEX_op_rolw_T0_T1,
|
||||
[INDEX_op_roll_T0_T1_cc] = INDEX_op_roll_T0_T1,
|
||||
|
||||
[INDEX_op_rorb_T0_T1_cc] = INDEX_op_rorb_T0_T1,
|
||||
[INDEX_op_rorw_T0_T1_cc] = INDEX_op_rorw_T0_T1,
|
||||
[INDEX_op_rorl_T0_T1_cc] = INDEX_op_rorl_T0_T1,
|
||||
|
||||
[INDEX_op_shlb_T0_T1_cc] = INDEX_op_shlb_T0_T1,
|
||||
[INDEX_op_shlw_T0_T1_cc] = INDEX_op_shlw_T0_T1,
|
||||
[INDEX_op_shll_T0_T1_cc] = INDEX_op_shll_T0_T1,
|
||||
|
||||
[INDEX_op_shrb_T0_T1_cc] = INDEX_op_shrb_T0_T1,
|
||||
[INDEX_op_shrw_T0_T1_cc] = INDEX_op_shrw_T0_T1,
|
||||
[INDEX_op_shrl_T0_T1_cc] = INDEX_op_shrl_T0_T1,
|
||||
|
||||
[INDEX_op_sarb_T0_T1_cc] = INDEX_op_sarb_T0_T1,
|
||||
[INDEX_op_sarw_T0_T1_cc] = INDEX_op_sarw_T0_T1,
|
||||
[INDEX_op_sarl_T0_T1_cc] = INDEX_op_sarl_T0_T1,
|
||||
};
|
||||
|
||||
static void optimize_flags_init(void)
|
||||
{
|
||||
int i;
|
||||
/* put default values in arrays */
|
||||
for(i = 0; i < NB_OPS; i++) {
|
||||
if (opc_simpler[i] == 0)
|
||||
opc_simpler[i] = i;
|
||||
}
|
||||
}
|
||||
|
||||
/* CPU flags computation optimization: we move backward thru the
|
||||
generated code to see which flags are needed. The operation is
|
||||
modified if suitable */
|
||||
static void optimize_flags(uint16_t *opc_buf, int opc_buf_len)
|
||||
{
|
||||
uint16_t *opc_ptr;
|
||||
int live_flags, write_flags, op;
|
||||
|
||||
opc_ptr = opc_buf + opc_buf_len;
|
||||
/* live_flags contains the flags needed by the next instructions
|
||||
in the code. At the end of the bloc, we consider that all the
|
||||
flags are live. */
|
||||
live_flags = CC_OSZAPC;
|
||||
while (opc_ptr > opc_buf) {
|
||||
op = *--opc_ptr;
|
||||
/* if none of the flags written by the instruction is used,
|
||||
then we can try to find a simpler instruction */
|
||||
write_flags = opc_write_flags[op];
|
||||
if ((live_flags & write_flags) == 0) {
|
||||
*opc_ptr = opc_simpler[op];
|
||||
}
|
||||
/* compute the live flags before the instruction */
|
||||
live_flags &= ~write_flags;
|
||||
live_flags |= opc_read_flags[op];
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
#ifdef DEBUG_DISAS
|
||||
static const char *op_str[] = {
|
||||
#define DEF(s) #s,
|
||||
#include "opc-i386.h"
|
||||
#undef DEF
|
||||
};
|
||||
|
||||
static void dump_ops(const uint16_t *opc_buf)
|
||||
{
|
||||
const uint16_t *opc_ptr;
|
||||
int c;
|
||||
opc_ptr = opc_buf;
|
||||
for(;;) {
|
||||
c = *opc_ptr++;
|
||||
fprintf(logfile, "0x%04x: %s\n", opc_ptr - opc_buf - 1, op_str[c]);
|
||||
if (c == INDEX_op_end)
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
/* XXX: make this buffer thread safe */
|
||||
/* XXX: make safe guess about sizes */
|
||||
#define MAX_OP_PER_INSTR 32
|
||||
#define OPC_BUF_SIZE 512
|
||||
#define OPC_MAX_SIZE (OPC_BUF_SIZE - MAX_OP_PER_INSTR)
|
||||
|
||||
#define OPPARAM_BUF_SIZE (OPC_BUF_SIZE * 3)
|
||||
|
||||
static uint16_t gen_opc_buf[OPC_BUF_SIZE];
|
||||
static uint32_t gen_opparam_buf[OPPARAM_BUF_SIZE];
|
||||
|
||||
/* return the next pc */
|
||||
int cpu_x86_gen_code(uint8_t *gen_code_buf, int max_code_size,
|
||||
int *gen_code_size_ptr, uint8_t *pc_start,
|
||||
int flags)
|
||||
{
|
||||
DisasContext dc1, *dc = &dc1;
|
||||
uint8_t *gen_code_end, *pc_ptr;
|
||||
uint8_t *pc_ptr;
|
||||
uint16_t *gen_opc_end;
|
||||
long ret;
|
||||
#ifdef DEBUG_DISAS
|
||||
struct disassemble_info disasm_info;
|
||||
#endif
|
||||
|
||||
/* generate intermediate code */
|
||||
|
||||
dc->code32 = (flags >> GEN_FLAG_CODE32_SHIFT) & 1;
|
||||
dc->addseg = (flags >> GEN_FLAG_ADDSEG_SHIFT) & 1;
|
||||
dc->f_st = (flags >> GEN_FLAG_ST_SHIFT) & 7;
|
||||
dc->cc_op = CC_OP_DYNAMIC;
|
||||
gen_code_ptr = gen_code_buf;
|
||||
gen_code_end = gen_code_buf + max_code_size - 4096;
|
||||
gen_start();
|
||||
|
||||
gen_opc_ptr = gen_opc_buf;
|
||||
gen_opc_end = gen_opc_buf + OPC_MAX_SIZE;
|
||||
gen_opparam_ptr = gen_opparam_buf;
|
||||
|
||||
dc->is_jmp = 0;
|
||||
pc_ptr = pc_start;
|
||||
@ -2871,7 +3205,7 @@ int cpu_x86_gen_code(uint8_t *gen_code_buf, int max_code_size,
|
||||
abort();
|
||||
}
|
||||
pc_ptr = (void *)ret;
|
||||
} while (!dc->is_jmp && gen_code_ptr < gen_code_end);
|
||||
} while (!dc->is_jmp && gen_opc_ptr < gen_opc_end);
|
||||
/* we must store the eflags state if it is not already done */
|
||||
if (dc->cc_op != CC_OP_DYNAMIC)
|
||||
gen_op_set_cc_op(dc->cc_op);
|
||||
@ -2879,9 +3213,9 @@ int cpu_x86_gen_code(uint8_t *gen_code_buf, int max_code_size,
|
||||
/* we add an additionnal jmp to update the simulated PC */
|
||||
gen_op_jmp_im(ret);
|
||||
}
|
||||
gen_end();
|
||||
*gen_code_size_ptr = gen_code_ptr - gen_code_buf;
|
||||
*gen_opc_ptr = INDEX_op_end;
|
||||
|
||||
/* optimize flag computations */
|
||||
#ifdef DEBUG_DISAS
|
||||
if (loglevel) {
|
||||
uint8_t *pc;
|
||||
@ -2898,6 +3232,7 @@ int cpu_x86_gen_code(uint8_t *gen_code_buf, int max_code_size,
|
||||
#else
|
||||
disasm_info.endian = BFD_ENDIAN_LITTLE;
|
||||
#endif
|
||||
fprintf(logfile, "----------------\n");
|
||||
fprintf(logfile, "IN:\n");
|
||||
disasm_info.buffer = pc_start;
|
||||
disasm_info.buffer_vma = (unsigned long)pc_start;
|
||||
@ -2911,12 +3246,37 @@ int cpu_x86_gen_code(uint8_t *gen_code_buf, int max_code_size,
|
||||
}
|
||||
fprintf(logfile, "\n");
|
||||
|
||||
fprintf(logfile, "OP:\n");
|
||||
dump_ops(gen_opc_buf);
|
||||
fprintf(logfile, "\n");
|
||||
}
|
||||
#endif
|
||||
|
||||
/* optimize flag computations */
|
||||
optimize_flags(gen_opc_buf, gen_opc_ptr - gen_opc_buf);
|
||||
|
||||
#ifdef DEBUG_DISAS
|
||||
if (loglevel) {
|
||||
fprintf(logfile, "AFTER FLAGS OPT:\n");
|
||||
dump_ops(gen_opc_buf);
|
||||
fprintf(logfile, "\n");
|
||||
}
|
||||
#endif
|
||||
|
||||
/* generate machine code */
|
||||
*gen_code_size_ptr = dyngen_code(gen_code_buf, gen_opc_buf, gen_opparam_buf);
|
||||
|
||||
#ifdef DEBUG_DISAS
|
||||
if (loglevel) {
|
||||
uint8_t *pc;
|
||||
int count;
|
||||
|
||||
pc = gen_code_buf;
|
||||
disasm_info.buffer = pc;
|
||||
disasm_info.buffer_vma = (unsigned long)pc;
|
||||
disasm_info.buffer_length = *gen_code_size_ptr;
|
||||
fprintf(logfile, "OUT: [size=%d]\n", *gen_code_size_ptr);
|
||||
while (pc < gen_code_ptr) {
|
||||
while (pc < gen_code_buf + *gen_code_size_ptr) {
|
||||
fprintf(logfile, "0x%08lx: ", (long)pc);
|
||||
count = print_insn_i386((unsigned long)pc, &disasm_info);
|
||||
fprintf(logfile, "\n");
|
||||
@ -2932,6 +3292,7 @@ CPUX86State *cpu_x86_init(void)
|
||||
{
|
||||
CPUX86State *env;
|
||||
int i;
|
||||
static int inited;
|
||||
|
||||
cpu_x86_tblocks_init();
|
||||
|
||||
@ -2946,6 +3307,12 @@ CPUX86State *cpu_x86_init(void)
|
||||
/* flags setup */
|
||||
env->cc_op = CC_OP_EFLAGS;
|
||||
env->df = 1;
|
||||
|
||||
/* init various static tables */
|
||||
if (!inited) {
|
||||
inited = 1;
|
||||
optimize_flags_init();
|
||||
}
|
||||
return env;
|
||||
}
|
||||
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user