diff options
Diffstat (limited to 'modutils')
| -rw-r--r-- | modutils/insmod.c | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/modutils/insmod.c b/modutils/insmod.c index 0ca3991..79bdebd 100644 --- a/modutils/insmod.c +++ b/modutils/insmod.c @@ -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: |