asm_hppa_gnu.c File Reference

#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <rz_types.h>
#include <rz_lib.h>
#include <rz_util.h>
#include <rz_asm.h>
#include "disas-asm.h"

Go to the source code of this file.

Functions
static int	hppa_buffer_read_memory (bfd_vma memaddr, bfd_byte *myaddr, ut32 length, struct disassemble_info *info)
static int	symbol_at_address (bfd_vma addr, struct disassemble_info *info)
static void	memory_error_func (int status, bfd_vma memaddr, struct disassemble_info *info)
static int	disassemble (RzAsm *a, RzAsmOp *op, const ut8 *buf, int len)

Variables
static unsigned long	Offset = 0
static RzStrBuf *	buf_global = NULL
static unsigned char	bytes [4]
RzAsmPlugin	rz_asm_plugin_hppa_gnu
RZ_API RzLibStruct	rizin_plugin

Function Documentation

disassemble()

static int disassemble ( RzAsm *  a, RzAsmOp *  op, const ut8 *  buf, int  len  )

static

Definition at line 52 of file asm_hppa_gnu.c.

                                                                       {
    struct disassemble_info disasm_obj;
    if (len < 4) {
        return -1;
    }
    buf_global = &op->buf_asm;
    Offset = a->pc;
    memcpy(bytes, buf, 4); // TODO handle thumb
 
    /* prepare disassembler */
    memset(&disasm_obj, '\0', sizeof(struct disassemble_info));
    disasm_obj.disassembler_options = (a->bits == 64) ? "64" : "";
    disasm_obj.buffer = bytes;
    disasm_obj.read_memory_func = &hppa_buffer_read_memory;
    disasm_obj.symbol_at_address_func = &symbol_at_address;
    disasm_obj.memory_error_func = &memory_error_func;
    disasm_obj.print_address_func = &generic_print_address_func;
    disasm_obj.endian = BFD_ENDIAN_BIG;
    disasm_obj.fprintf_func = &generic_fprintf_func;
    disasm_obj.stream = stdout;
 
    op->size = print_insn_hppa((bfd_vma)Offset, &disasm_obj);
    if (op->size == -1) {
        rz_strbuf_set(&op->buf_asm, "(data)");
    }
    return op->size;
}

References a, BFD_ENDIAN_BIG, buf_global, disassemble_info::buffer, bytes, disassemble_info::disassembler_options, disassemble_info::endian, disassemble_info::fprintf_func, hppa_buffer_read_memory(), len, memcpy(), memory_error_func(), disassemble_info::memory_error_func, memset(), Offset, disassemble_info::print_address_func, print_insn_hppa(), disassemble_info::read_memory_func, rz_strbuf_set(), disassemble_info::stream, symbol_at_address(), and disassemble_info::symbol_at_address_func.

hppa_buffer_read_memory()

static int hppa_buffer_read_memory ( bfd_vma  memaddr, bfd_byte *  myaddr, ut32  length, struct disassemble_info *  info  )

static

Definition at line 19 of file asm_hppa_gnu.c.

                                                                                                                  {
#if 0 // XXX rewrite needed
    if (length == 4)  {
        // swap
        myaddr[0] = bytes[3];
        myaddr[1] = bytes[2];
        myaddr[2] = bytes[1];
        myaddr[3] = bytes[0];
        return 0;
    }
#endif
    int delta = (memaddr - Offset);
    if (delta < 0) {
        return -1; // disable backward reads
    }
    if ((delta + length) > 4) {
        return -1;
    }
    memcpy(myaddr, bytes + delta, length);
    return 0;
}

References bytes, delta, length, memcpy(), and Offset.

Referenced by disassemble().

memory_error_func()

static void memory_error_func ( int  status, bfd_vma  memaddr, struct disassemble_info *  info  )

static

Definition at line 45 of file asm_hppa_gnu.c.

                                                                                          {
    //--
}

Referenced by disassemble().

symbol_at_address()

static int symbol_at_address ( bfd_vma  addr, struct disassemble_info *  info  )

static

Definition at line 41 of file asm_hppa_gnu.c.

                                                                          {
    return 0;
}

Referenced by disassemble().

Variable Documentation

buf_global

RzStrBuf* buf_global = NULL

static

Definition at line 16 of file asm_hppa_gnu.c.

Referenced by disassemble().

bytes

unsigned char bytes[4]

static

Definition at line 17 of file asm_hppa_gnu.c.

Referenced by disassemble(), and hppa_buffer_read_memory().

Offset

unsigned long Offset = 0

static

Definition at line 15 of file asm_hppa_gnu.c.

Referenced by disassemble(), and hppa_buffer_read_memory().

rizin_plugin

RZ_API RzLibStruct rizin_plugin

Initial value:

= {
    .type = RZ_LIB_TYPE_ASM,
    .data = &rz_asm_plugin_hppa_gnu,
    .version = RZ_VERSION
}

Definition at line 91 of file asm_hppa_gnu.c.

rz_asm_plugin_hppa_gnu

RzAsmPlugin rz_asm_plugin_hppa_gnu

Initial value:

= {
    .name = "hppa",
    .arch = "hppa",
    .license = "GPL3",
    .bits = 32,
    .endian = RZ_SYS_ENDIAN_BIG,
    .desc = "HP PA-RISC",
    .disassemble = &disassemble
}

Definition at line 80 of file asm_hppa_gnu.c.