elf_arm.c File Reference

#include "elf.h"

Go to the source code of this file.

Functions
static bool	start_a_sequence_of_instruction (RzBinSymbol *symbol)
static bool	start_a_sequence_of_thumb_instruction (RzBinSymbol *symbol)
static bool	start_a_sequence_of_data (RzBinSymbol *symbol)
bool Elf_()	rz_bin_elf_is_arm_binary_supporting_thumb (RZ_NONNULL ELFOBJ *bin)
bool Elf_()	rz_bin_elf_is_thumb_addr (ut64 addr)
void Elf_()	rz_bin_elf_fix_arm_thumb_addr (ut64 *addr)
void Elf_()	rz_bin_elf_fix_arm_thumb_object (RZ_NONNULL ut64 *paddr, RZ_NONNULL ut64 *vaddr, RZ_NONNULL int *bits)
void Elf_()	rz_bin_elf_fix_arm_thumb_symbol (RZ_NONNULL RzBinSymbol *symbol)

Function Documentation

rz_bin_elf_fix_arm_thumb_addr()

void Elf_() rz_bin_elf_fix_arm_thumb_addr

(

ut64 *

addr

)

Definition at line 28 of file elf_arm.c.

                                                     {
    rz_return_if_fail(Elf_(rz_bin_elf_is_thumb_addr(*addr)));
    *addr -= 1;
}

References addr, Elf_, rz_bin_elf_is_thumb_addr(), and rz_return_if_fail.

Referenced by rz_bin_elf_fix_arm_thumb_object().

rz_bin_elf_fix_arm_thumb_object()

void Elf_() rz_bin_elf_fix_arm_thumb_object	(	RZ_NONNULL ut64 *	paddr,
		RZ_NONNULL ut64 *	vaddr,
		RZ_NONNULL int *	bits
	)

Definition at line 33 of file elf_arm.c.

                                                                                                                 {
    rz_return_if_fail(paddr && vaddr && bits);
 
    *bits = 32;
 
    if (Elf_(rz_bin_elf_is_thumb_addr)(*paddr)) {
        Elf_(rz_bin_elf_fix_arm_thumb_addr)(paddr);
        *bits = 16;
    }
 
    if (Elf_(rz_bin_elf_is_thumb_addr)(*vaddr)) {
        Elf_(rz_bin_elf_fix_arm_thumb_addr)(vaddr);
        *bits = 16;
    }
}

References bits(), Elf_, rz_bin_elf_fix_arm_thumb_addr(), rz_bin_elf_is_thumb_addr(), and rz_return_if_fail.

rz_bin_elf_fix_arm_thumb_symbol()

void Elf_() rz_bin_elf_fix_arm_thumb_symbol

(

RZ_NONNULL RzBinSymbol *

symbol

)

Definition at line 49 of file elf_arm.c.

                                                                           {
    rz_return_if_fail(symbol && symbol->name);
 
    if (start_a_sequence_of_instruction(symbol)) {
        symbol->bits = 32;
    } else if (start_a_sequence_of_thumb_instruction(symbol) || !start_a_sequence_of_data(symbol)) {
        rz_bin_elf_fix_arm_thumb_object_dispatch(symbol);
    }
}

References rz_bin_elf_fix_arm_thumb_object_dispatch, rz_return_if_fail, start_a_sequence_of_data(), start_a_sequence_of_instruction(), and start_a_sequence_of_thumb_instruction().

rz_bin_elf_is_arm_binary_supporting_thumb()

bool Elf_() rz_bin_elf_is_arm_binary_supporting_thumb

(

RZ_NONNULL ELFOBJ *

bin

)

Definition at line 19 of file elf_arm.c.

                                                                             {
    rz_return_val_if_fail(bin, false);
    return bin->ehdr.e_machine == EM_ARM;
}

References EM_ARM, and rz_return_val_if_fail.

Referenced by rz_bin_elf_get_bits().

rz_bin_elf_is_thumb_addr()

bool Elf_() rz_bin_elf_is_thumb_addr

(

ut64

addr

)

Definition at line 24 of file elf_arm.c.

                                               {
    return addr != UT64_MAX && addr & 1;
}

References addr, and UT64_MAX.

Referenced by get_import_addr_arm(), get_main_offset_arm_glibc(), has_thumb_symbol(), rz_bin_elf_fix_arm_thumb_addr(), rz_bin_elf_fix_arm_thumb_object(), and rz_bin_elf_get_bits().

start_a_sequence_of_data()

static bool start_a_sequence_of_data ( RzBinSymbol *  symbol )

static

Definition at line 15 of file elf_arm.c.

                                                          {
    return strlen(symbol->name) > 3 && rz_str_startswith(symbol->name, "$d.");
}

References rz_bin_symbol_t::name, and rz_str_startswith().

Referenced by rz_bin_elf_fix_arm_thumb_symbol().

start_a_sequence_of_instruction()

static bool start_a_sequence_of_instruction ( RzBinSymbol *  symbol )

static

Definition at line 7 of file elf_arm.c.

                                                                 {
    return strlen(symbol->name) > 3 && rz_str_startswith(symbol->name, "$a.");
}

References rz_bin_symbol_t::name, and rz_str_startswith().

Referenced by rz_bin_elf_fix_arm_thumb_symbol().

start_a_sequence_of_thumb_instruction()

static bool start_a_sequence_of_thumb_instruction ( RzBinSymbol *  symbol )

static

Definition at line 11 of file elf_arm.c.

                                                                       {
    return strlen(symbol->name) > 3 && rz_str_startswith(symbol->name, "$t.");
}

References rz_bin_symbol_t::name, and rz_str_startswith().

Referenced by rz_bin_elf_fix_arm_thumb_symbol().