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import nios2 support from microtronix

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This commit is contained in:
Mike Frysinger 2006-01-04 00:11:26 +00:00
parent 29ed59ee11
commit f982d86ba7
1 changed files with 171 additions and 0 deletions
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171
modutils/insmod.c
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@ -217,6 +217,14 @@ extern int insmod_ng_main( int argc, char **argv);
#define ARCHDATAM "__dbe_table"
#endif
/* Nios II */
#if defined(__nios2__)
#define MATCH_MACHINE(x) (x == EM_ALTERA_NIOS2)
#define SHT_RELM SHT_RELA
#define Elf32_RelM Elf32_Rela
#define ELFCLASSM ELFCLASS32
#endif
/* PowerPC */
#if defined(__powerpc64__)
#define MATCH_MACHINE(x) (x == EM_PPC64)
@ -1126,6 +1134,167 @@ arch_apply_relocation(struct obj_file *f,
break;
}
#elif defined(__nios2__)
case R_NIOS2_NONE:
break;
case R_NIOS2_BFD_RELOC_32:
*loc += v;
break;
case R_NIOS2_BFD_RELOC_16:
if (v > 0xffff) {
ret = obj_reloc_overflow;
}
*(short *)loc = v;
break;
case R_NIOS2_BFD_RELOC_8:
if (v > 0xff) {
ret = obj_reloc_overflow;
}
*(char *)loc = v;
break;
case R_NIOS2_S16:
{
Elf32_Addr word;
if ((Elf32_Sword)v > 0x7fff ||
(Elf32_Sword)v < -(Elf32_Sword)0x8000) {
ret = obj_reloc_overflow;
}
word = *loc;
*loc = ((((word >> 22) << 16) | (v & 0xffff)) << 6) |
(word & 0x3f);
}
break;
case R_NIOS2_U16:
{
Elf32_Addr word;
if (v > 0xffff) {
ret = obj_reloc_overflow;
}
word = *loc;
*loc = ((((word >> 22) << 16) | (v & 0xffff)) << 6) |
(word & 0x3f);
}
break;
case R_NIOS2_PCREL16:
{
Elf32_Addr word;
v -= dot + 4;
if ((Elf32_Sword)v > 0x7fff ||
(Elf32_Sword)v < -(Elf32_Sword)0x8000) {
ret = obj_reloc_overflow;
}
word = *loc;
*loc = ((((word >> 22) << 16) | (v & 0xffff)) << 6) | (word & 0x3f);
}
break;
case R_NIOS2_GPREL:
{
Elf32_Addr word, gp;
/* get _gp */
gp = obj_symbol_final_value(f, obj_find_symbol(f, SPFX "_gp"));
v-=gp;
if ((Elf32_Sword)v > 0x7fff ||
(Elf32_Sword)v < -(Elf32_Sword)0x8000) {
ret = obj_reloc_overflow;
}
word = *loc;
*loc = ((((word >> 22) << 16) | (v & 0xffff)) << 6) | (word & 0x3f);
}
break;
case R_NIOS2_CALL26:
if (v & 3)
ret = obj_reloc_dangerous;
if ((v >> 28) != (dot >> 28))
ret = obj_reloc_overflow;
*loc = (*loc & 0x3f) | ((v >> 2) << 6);
break;
case R_NIOS2_IMM5:
{
Elf32_Addr word;
if (v > 0x1f) {
ret = obj_reloc_overflow;
}
word = *loc & ~0x7c0;
*loc = word | ((v & 0x1f) << 6);
}
break;
case R_NIOS2_IMM6:
{
Elf32_Addr word;
if (v > 0x3f) {
ret = obj_reloc_overflow;
}
word = *loc & ~0xfc0;
*loc = word | ((v & 0x3f) << 6);
}
break;
case R_NIOS2_IMM8:
{
Elf32_Addr word;
if (v > 0xff) {
ret = obj_reloc_overflow;
}
word = *loc & ~0x3fc0;
*loc = word | ((v & 0xff) << 6);
}
break;
case R_NIOS2_HI16:
{
Elf32_Addr word;
word = *loc;
*loc = ((((word >> 22) << 16) | ((v >>16) & 0xffff)) << 6) |
(word & 0x3f);
}
break;
case R_NIOS2_LO16:
{
Elf32_Addr word;
word = *loc;
*loc = ((((word >> 22) << 16) | (v & 0xffff)) << 6) |
(word & 0x3f);
}
break;
case R_NIOS2_HIADJ16:
{
Elf32_Addr word1, word2;
word1 = *loc;
word2 = ((v >> 16) + ((v >> 15) & 1)) & 0xffff;
*loc = ((((word1 >> 22) << 16) | word2) << 6) |
(word1 & 0x3f);
}
break;
#elif defined(__powerpc__)
case R_PPC_ADDR16_HA:
@ -1409,6 +1578,8 @@ arch_apply_relocation(struct obj_file *f,
break;
# endif
#else
# warning "no idea how to handle relocations on your arch"
#endif
default: