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elf_reloc_arm.h
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/* elf_reloc_arm.h ELF relocation types for ARM */
/* (c) in 2004,2016 by Frank Wille */
#define R_ARM_NONE 0
#define R_ARM_PC24 1
#define R_ARM_ABS32 2
#define R_ARM_REL32 3
#define R_ARM_PC13 4
#define R_ARM_ABS16 5
#define R_ARM_ABS12 6
#define R_ARM_THM_ABS5 7
#define R_ARM_ABS8 8
#define R_ARM_SBREL32 9
#define R_ARM_THM_PC22 10
#define R_ARM_THM_PC8 11
#define R_ARM_SWI24 13
#define R_ARM_THM_SWI8 14
#define R_ARM_ALU_PCREL_7_0 32
#define R_ARM_ALU_PCREL_15_8 33
#define R_ARM_ALU_PCREL_23_15 34
#define R_ARM_LDR_SBREL_11_0 35
#define R_ARM_LDR_SBREL_19_12 36
#define R_ARM_LDR_SBREL_27_20 37
#define R_ARM_RELABS32 38
#define R_ARM_ROSEGREL32 39
#define R_ARM_V4BX 40
#define AFLD(p,s) (BIGENDIAN?(size==(s)&&(pos&31)==(p)):(size==(s)&&(pos&31)==(32-(p)-(s))))
#define TFLD(p,s) (BIGENDIAN?(size==(s)&&(pos&15)==(p)):(size==(s)&&(pos&15)==(16-(p)-(s))))
if (is_std_reloc(*rl)) {
nreloc *r = (nreloc *)(*rl)->reloc;
*refsym = r->sym;
*addend = r->addend;
pos = r->bitoffset;
size = r->size;
*roffset = r->byteoffset;
mask = r->mask;
switch (STD_REL_TYPE((*rl)->type)) {
case REL_NONE:
t = R_ARM_NONE;
break;
case REL_ABS:
if (pos==0 && mask==~0) {
if (size == 32)
t = R_ARM_ABS32;
else if (size == 16)
t = R_ARM_ABS16;
else if (size == 8)
t = R_ARM_ABS8;
}
else if (AFLD(8,24) && mask==~0)
t = R_ARM_SWI24;
else if (AFLD(20,12) && mask==~0)
t = R_ARM_ABS12;
else if (TFLD(8,8) && mask==0xff)
t = R_ARM_THM_SWI8;
else if (TFLD(5,5) && mask==0x1f)
t = R_ARM_THM_ABS5;
break;
case REL_PC:
if (size==32 && pos==0 && mask==~0)
t = R_ARM_REL32;
else if (AFLD(8,24) && mask==~3)
t = R_ARM_PC24;
else if (AFLD(20,12) && mask==~0)
t = R_ARM_PC13;
else if (AFLD(24,8) && mask==0xff)
t = R_ARM_ALU_PCREL_7_0;
else if (AFLD(24,8) && mask==0xff00)
t = R_ARM_ALU_PCREL_15_8;
else if (AFLD(24,8) && mask==0xff0000)
t = R_ARM_ALU_PCREL_23_15;
else if (TFLD(8,8) && mask==0x3fc)
t = R_ARM_THM_PC8;
else if (TFLD(5,11)) {
if (rl2 = (*rl)->next) {
nreloc *r2 = (nreloc *)rl2->reloc;
if (rl2->type==(*rl)->type
&& r2->size==size && (r2->bitoffset&15)==(pos&15)) {
if ((mask==0x7ff000 && r2->mask==0xffe) ||
(mask==0xffe && r2->mask==0x7ff000)) {
t = R_ARM_THM_PC22;
*rl = (*rl)->next;
}
}
}
}
break;
}
}
#undef AFLD
#undef TFLD