name = get_sym_name(symtab + *(uint32_t *)(rel->r_reloc->r_symndx));
if (!strcmp(name, ".data"))
name = name_for_dotdata(rel);
+ if (name[0] == '.')
+ return NULL;
return name;
}
}
}
+#ifdef HOST_IA64
+
+#define PLT_ENTRY_SIZE 16 /* 1 bundle containing "brl" */
+
+struct plt_entry {
+ struct plt_entry *next;
+ const char *name;
+ unsigned long addend;
+} *plt_list;
+
+static int
+get_plt_index (const char *name, unsigned long addend)
+{
+ struct plt_entry *plt, *prev= NULL;
+ int index = 0;
+
+ /* see if we already have an entry for this target: */
+ for (plt = plt_list; plt; ++index, prev = plt, plt = plt->next)
+ if (strcmp(plt->name, name) == 0 && plt->addend == addend)
+ return index;
+
+ /* nope; create a new PLT entry: */
+
+ plt = malloc(sizeof(*plt));
+ if (!plt) {
+ perror("malloc");
+ exit(1);
+ }
+ memset(plt, 0, sizeof(*plt));
+ plt->name = strdup(name);
+ plt->addend = addend;
+
+ /* append to plt-list: */
+ if (prev)
+ prev->next = plt;
+ else
+ plt_list = plt;
+ return index;
+}
+
+#endif
+
#ifdef HOST_ARM
int arm_emit_ldr_info(const char *name, unsigned long start_offset,
/* 08 00 84 00 */
if (get32((uint32_t *)p) != 0x00840008)
error("br.ret.sptk.many b0;; expected at the end of %s", name);
- copy_size = p - p_start;
+ copy_size = p_end - p_start;
}
#elif defined(HOST_SPARC)
{
}
fprintf(outfile, ";\n");
}
+#if defined(HOST_IA64)
+ fprintf(outfile, " extern char %s;\n", name);
+#else
fprintf(outfile, " extern void %s();\n", name);
+#endif
for(i = 0, rel = relocs;i < nb_relocs; i++, rel++) {
host_ulong offset = get_rel_offset(rel);
continue;
}
#endif
-#ifdef __APPLE__
+#if defined(__APPLE__)
/* set __attribute((unused)) on darwin because we wan't to avoid warning when we don't use the symbol */
fprintf(outfile, "extern char %s __attribute__((unused));\n", sym_name);
+#elif defined(HOST_IA64)
+ if (ELF64_R_TYPE(rel->r_info) != R_IA64_PCREL21B)
+ /*
+ * PCREL21 br.call targets generally
+ * are out of range and need to go
+ * through an "import stub".
+ */
+ fprintf(outfile, " extern char %s;\n",
+ sym_name);
#else
fprintf(outfile, "extern char %s;\n", sym_name);
#endif
#endif
if (val >= start_offset && val <= start_offset + copy_size) {
n = strtol(p, NULL, 10);
- fprintf(outfile, " label_offsets[%d] = %ld + (gen_code_ptr - gen_code_buf);\n", n, val - start_offset);
+ fprintf(outfile, " label_offsets[%d] = %ld + (gen_code_ptr - gen_code_buf);\n", n, (long)(val - start_offset));
}
}
}
char name[256];
int type;
int addend;
+ int reloc_offset;
for(i = 0, rel = relocs;i < nb_relocs; i++, rel++) {
if (rel->r_offset >= start_offset &&
rel->r_offset < start_offset + copy_size) {
sym_name = get_rel_sym_name(rel);
+ if (!sym_name)
+ continue;
+ reloc_offset = rel->r_offset - start_offset;
if (strstart(sym_name, "__op_jmp", &p)) {
int n;
n = strtol(p, NULL, 10);
chaining: the offset of the instruction
needs to be stored */
fprintf(outfile, " jmp_offsets[%d] = %d + (gen_code_ptr - gen_code_buf);\n",
- n, rel->r_offset - start_offset);
+ n, reloc_offset);
continue;
}
-
+
get_reloc_expr(name, sizeof(name), sym_name);
addend = get32((uint32_t *)(text + rel->r_offset));
#ifdef CONFIG_FORMAT_ELF
switch(type) {
case R_386_32:
fprintf(outfile, " *(uint32_t *)(gen_code_ptr + %d) = %s + %d;\n",
- rel->r_offset - start_offset, name, addend);
+ reloc_offset, name, addend);
break;
case R_386_PC32:
fprintf(outfile, " *(uint32_t *)(gen_code_ptr + %d) = %s - (long)(gen_code_ptr + %d) + %d;\n",
- rel->r_offset - start_offset, name, rel->r_offset - start_offset, addend);
+ reloc_offset, name, reloc_offset, addend);
break;
default:
error("unsupported i386 relocation (%d)", type);
switch(type) {
case DIR32:
fprintf(outfile, " *(uint32_t *)(gen_code_ptr + %d) = %s + %d;\n",
- rel->r_offset - start_offset, name, addend);
+ reloc_offset, name, addend);
break;
case DISP32:
fprintf(outfile, " *(uint32_t *)(gen_code_ptr + %d) = %s - (long)(gen_code_ptr + %d) + %d -4;\n",
- rel->r_offset - start_offset, name, rel->r_offset - start_offset, addend);
+ reloc_offset, name, reloc_offset, addend);
break;
default:
error("unsupported i386 relocation (%d)", type);
char name[256];
int type;
int addend;
+ int reloc_offset;
for(i = 0, rel = relocs;i < nb_relocs; i++, rel++) {
if (rel->r_offset >= start_offset &&
rel->r_offset < start_offset + copy_size) {
get_reloc_expr(name, sizeof(name), sym_name);
type = ELF32_R_TYPE(rel->r_info);
addend = rel->r_addend;
+ reloc_offset = rel->r_offset - start_offset;
switch(type) {
case R_X86_64_32:
fprintf(outfile, " *(uint32_t *)(gen_code_ptr + %d) = (uint32_t)%s + %d;\n",
- rel->r_offset - start_offset, name, addend);
+ reloc_offset, name, addend);
break;
case R_X86_64_32S:
fprintf(outfile, " *(uint32_t *)(gen_code_ptr + %d) = (int32_t)%s + %d;\n",
- rel->r_offset - start_offset, name, addend);
+ reloc_offset, name, addend);
break;
case R_X86_64_PC32:
fprintf(outfile, " *(uint32_t *)(gen_code_ptr + %d) = %s - (long)(gen_code_ptr + %d) + %d;\n",
- rel->r_offset - start_offset, name, rel->r_offset - start_offset, addend);
+ reloc_offset, name, reloc_offset, addend);
break;
default:
error("unsupported X86_64 relocation (%d)", type);
char name[256];
int type;
int addend;
+ int reloc_offset;
for(i = 0, rel = relocs;i < nb_relocs; i++, rel++) {
if (rel->r_offset >= start_offset &&
rel->r_offset < start_offset + copy_size) {
sym_name = strtab + symtab[ELFW(R_SYM)(rel->r_info)].st_name;
+ reloc_offset = rel->r_offset - start_offset;
if (strstart(sym_name, "__op_jmp", &p)) {
int n;
n = strtol(p, NULL, 10);
chaining: the offset of the instruction
needs to be stored */
fprintf(outfile, " jmp_offsets[%d] = %d + (gen_code_ptr - gen_code_buf);\n",
- n, rel->r_offset - start_offset);
+ n, reloc_offset);
continue;
}
switch(type) {
case R_PPC_ADDR32:
fprintf(outfile, " *(uint32_t *)(gen_code_ptr + %d) = %s + %d;\n",
- rel->r_offset - start_offset, name, addend);
+ reloc_offset, name, addend);
break;
case R_PPC_ADDR16_LO:
fprintf(outfile, " *(uint16_t *)(gen_code_ptr + %d) = (%s + %d);\n",
- rel->r_offset - start_offset, name, addend);
+ reloc_offset, name, addend);
break;
case R_PPC_ADDR16_HI:
fprintf(outfile, " *(uint16_t *)(gen_code_ptr + %d) = (%s + %d) >> 16;\n",
- rel->r_offset - start_offset, name, addend);
+ reloc_offset, name, addend);
break;
case R_PPC_ADDR16_HA:
fprintf(outfile, " *(uint16_t *)(gen_code_ptr + %d) = (%s + %d + 0x8000) >> 16;\n",
- rel->r_offset - start_offset, name, addend);
+ reloc_offset, name, addend);
break;
case R_PPC_REL24:
/* warning: must be at 32 MB distancy */
fprintf(outfile, " *(uint32_t *)(gen_code_ptr + %d) = (*(uint32_t *)(gen_code_ptr + %d) & ~0x03fffffc) | ((%s - (long)(gen_code_ptr + %d) + %d) & 0x03fffffc);\n",
- rel->r_offset - start_offset, rel->r_offset - start_offset, name, rel->r_offset - start_offset, addend);
+ reloc_offset, reloc_offset, name, reloc_offset, addend);
break;
default:
error("unsupported powerpc relocation (%d)", type);
char name[256];
int type;
int addend;
+ int reloc_offset;
for(i = 0, rel = relocs;i < nb_relocs; i++, rel++) {
if (rel->r_offset >= start_offset &&
rel->r_offset < start_offset + copy_size) {
get_reloc_expr(name, sizeof(name), sym_name);
type = ELF32_R_TYPE(rel->r_info);
addend = rel->r_addend;
+ reloc_offset = rel->r_offset - start_offset;
switch(type) {
case R_390_32:
fprintf(outfile, " *(uint32_t *)(gen_code_ptr + %d) = %s + %d;\n",
- rel->r_offset - start_offset, name, addend);
+ reloc_offset, name, addend);
break;
case R_390_16:
fprintf(outfile, " *(uint16_t *)(gen_code_ptr + %d) = %s + %d;\n",
- rel->r_offset - start_offset, name, addend);
+ reloc_offset, name, addend);
break;
case R_390_8:
fprintf(outfile, " *(uint8_t *)(gen_code_ptr + %d) = %s + %d;\n",
- rel->r_offset - start_offset, name, addend);
+ reloc_offset, name, addend);
break;
default:
error("unsupported s390 relocation (%d)", type);
for (i = 0, rel = relocs; i < nb_relocs; i++, rel++) {
if (rel->r_offset >= start_offset && rel->r_offset < start_offset + copy_size) {
int type;
+ long reloc_offset;
type = ELF64_R_TYPE(rel->r_info);
sym_name = strtab + symtab[ELF64_R_SYM(rel->r_info)].st_name;
+ reloc_offset = rel->r_offset - start_offset;
switch (type) {
case R_ALPHA_GPDISP:
/* The gp is just 32 bit, and never changes, so it's easiest to emit it
as an immediate instead of constructing it from the pv or ra. */
fprintf(outfile, " immediate_ldah(gen_code_ptr + %ld, gp);\n",
- rel->r_offset - start_offset);
+ reloc_offset);
fprintf(outfile, " immediate_lda(gen_code_ptr + %ld, gp);\n",
- rel->r_offset - start_offset + rel->r_addend);
+ reloc_offset + (int)rel->r_addend);
break;
case R_ALPHA_LITUSE:
/* jsr to literal hint. Could be used to optimize to bsr. Ignore for
special treatment. */
if (strstart(sym_name, "__op_param", &p))
fprintf(outfile, " immediate_ldah(gen_code_ptr + %ld, param%s);\n",
- rel->r_offset - start_offset, p);
+ reloc_offset, p);
break;
case R_ALPHA_GPRELLOW:
if (strstart(sym_name, "__op_param", &p))
fprintf(outfile, " immediate_lda(gen_code_ptr + %ld, param%s);\n",
- rel->r_offset - start_offset, p);
+ reloc_offset, p);
break;
case R_ALPHA_BRSGP:
/* PC-relative jump. Tweak offset to skip the two instructions that try to
set up the gp from the pv. */
fprintf(outfile, " fix_bsr(gen_code_ptr + %ld, (uint8_t *) &%s - (gen_code_ptr + %ld + 4) + 8);\n",
- rel->r_offset - start_offset, sym_name, rel->r_offset - start_offset);
+ reloc_offset, sym_name, reloc_offset);
break;
default:
error("unsupported Alpha relocation (%d)", type);
}
#elif defined(HOST_IA64)
{
+ unsigned long sym_idx;
+ long code_offset;
char name[256];
int type;
- int addend;
+ long addend;
+
for(i = 0, rel = relocs;i < nb_relocs; i++, rel++) {
- if (rel->r_offset >= start_offset && rel->r_offset < start_offset + copy_size) {
- sym_name = strtab + symtab[ELF64_R_SYM(rel->r_info)].st_name;
- get_reloc_expr(name, sizeof(name), sym_name);
- type = ELF64_R_TYPE(rel->r_info);
- addend = rel->r_addend;
- switch(type) {
- case R_IA64_LTOFF22:
- error("must implemnt R_IA64_LTOFF22 relocation");
- case R_IA64_PCREL21B:
- error("must implemnt R_IA64_PCREL21B relocation");
- default:
- error("unsupported ia64 relocation (%d)", type);
- }
- }
+ sym_idx = ELF64_R_SYM(rel->r_info);
+ if (rel->r_offset < start_offset
+ || rel->r_offset >= start_offset + copy_size)
+ continue;
+ sym_name = (strtab + symtab[sym_idx].st_name);
+ code_offset = rel->r_offset - start_offset;
+ if (strstart(sym_name, "__op_jmp", &p)) {
+ int n;
+ n = strtol(p, NULL, 10);
+ /* __op_jmp relocations are done at
+ runtime to do translated block
+ chaining: the offset of the instruction
+ needs to be stored */
+ fprintf(outfile, " jmp_offsets[%d] ="
+ "%ld + (gen_code_ptr - gen_code_buf);\n",
+ n, code_offset);
+ continue;
+ }
+ get_reloc_expr(name, sizeof(name), sym_name);
+ type = ELF64_R_TYPE(rel->r_info);
+ addend = rel->r_addend;
+ switch(type) {
+ case R_IA64_IMM64:
+ fprintf(outfile,
+ " ia64_imm64(gen_code_ptr + %ld, "
+ "%s + %ld);\n",
+ code_offset, name, addend);
+ break;
+ case R_IA64_LTOFF22X:
+ case R_IA64_LTOFF22:
+ fprintf(outfile, " IA64_LTOFF(gen_code_ptr + %ld,"
+ " %s + %ld, %d);\n",
+ code_offset, name, addend,
+ (type == R_IA64_LTOFF22X));
+ break;
+ case R_IA64_LDXMOV:
+ fprintf(outfile,
+ " ia64_ldxmov(gen_code_ptr + %ld,"
+ " %s + %ld);\n", code_offset, name, addend);
+ break;
+
+ case R_IA64_PCREL21B:
+ if (strstart(sym_name, "__op_gen_label", NULL)) {
+ fprintf(outfile,
+ " ia64_imm21b(gen_code_ptr + %ld,"
+ " (long) (%s + %ld -\n\t\t"
+ "((long) gen_code_ptr + %ld)) >> 4);\n",
+ code_offset, name, addend,
+ code_offset & ~0xfUL);
+ } else {
+ fprintf(outfile,
+ " IA64_PLT(gen_code_ptr + %ld, "
+ "%d);\t/* %s + %ld */\n",
+ code_offset,
+ get_plt_index(sym_name, addend),
+ sym_name, addend);
+ }
+ break;
+ default:
+ error("unsupported ia64 relocation (0x%x)",
+ type);
+ }
}
+ fprintf(outfile, " ia64_nop_b(gen_code_ptr + %d);\n",
+ copy_size - 16 + 2);
}
#elif defined(HOST_SPARC)
{
char name[256];
int type;
int addend;
+ int reloc_offset;
for(i = 0, rel = relocs;i < nb_relocs; i++, rel++) {
if (rel->r_offset >= start_offset &&
rel->r_offset < start_offset + copy_size) {
get_reloc_expr(name, sizeof(name), sym_name);
type = ELF32_R_TYPE(rel->r_info);
addend = rel->r_addend;
+ reloc_offset = rel->r_offset - start_offset;
switch(type) {
case R_SPARC_32:
fprintf(outfile, " *(uint32_t *)(gen_code_ptr + %d) = %s + %d;\n",
- rel->r_offset - start_offset, name, addend);
+ reloc_offset, name, addend);
break;
case R_SPARC_HI22:
fprintf(outfile,
"((*(uint32_t *)(gen_code_ptr + %d)) "
" & ~0x3fffff) "
" | (((%s + %d) >> 10) & 0x3fffff);\n",
- rel->r_offset - start_offset,
- rel->r_offset - start_offset,
- name, addend);
+ reloc_offset, reloc_offset, name, addend);
break;
case R_SPARC_LO10:
fprintf(outfile,
"((*(uint32_t *)(gen_code_ptr + %d)) "
" & ~0x3ff) "
" | ((%s + %d) & 0x3ff);\n",
- rel->r_offset - start_offset,
- rel->r_offset - start_offset,
- name, addend);
+ reloc_offset, reloc_offset, name, addend);
break;
case R_SPARC_WDISP30:
fprintf(outfile,
" & ~0x3fffffff) "
" | ((((%s + %d) - (long)(gen_code_ptr + %d))>>2) "
" & 0x3fffffff);\n",
- rel->r_offset - start_offset,
- rel->r_offset - start_offset,
- name, addend,
- rel->r_offset - start_offset);
+ reloc_offset, reloc_offset, name, addend,
+ reloc_offset);
break;
default:
error("unsupported sparc relocation (%d)", type);
char name[256];
int type;
int addend;
+ int reloc_offset;
for(i = 0, rel = relocs;i < nb_relocs; i++, rel++) {
if (rel->r_offset >= start_offset &&
rel->r_offset < start_offset + copy_size) {
get_reloc_expr(name, sizeof(name), sym_name);
type = ELF64_R_TYPE(rel->r_info);
addend = rel->r_addend;
+ reloc_offset = rel->r_offset - start_offset;
switch(type) {
case R_SPARC_32:
fprintf(outfile, " *(uint32_t *)(gen_code_ptr + %d) = %s + %d;\n",
- rel->r_offset - start_offset, name, addend);
+ reloc_offset, name, addend);
break;
case R_SPARC_HI22:
fprintf(outfile,
"((*(uint32_t *)(gen_code_ptr + %d)) "
" & ~0x3fffff) "
" | (((%s + %d) >> 10) & 0x3fffff);\n",
- rel->r_offset - start_offset,
- rel->r_offset - start_offset,
- name, addend);
+ reloc_offset, reloc_offset, name, addend);
break;
case R_SPARC_LO10:
fprintf(outfile,
"((*(uint32_t *)(gen_code_ptr + %d)) "
" & ~0x3ff) "
" | ((%s + %d) & 0x3ff);\n",
- rel->r_offset - start_offset,
- rel->r_offset - start_offset,
- name, addend);
+ reloc_offset, reloc_offset, name, addend);
break;
case R_SPARC_WDISP30:
fprintf(outfile,
" & ~0x3fffffff) "
" | ((((%s + %d) - (long)(gen_code_ptr + %d))>>2) "
" & 0x3fffffff);\n",
- rel->r_offset - start_offset,
- rel->r_offset - start_offset,
- name, addend,
- rel->r_offset - start_offset);
+ reloc_offset, reloc_offset, name, addend,
+ reloc_offset);
break;
default:
error("unsupported sparc64 relocation (%d)", type);
char name[256];
int type;
int addend;
+ int reloc_offset;
arm_emit_ldr_info(name, start_offset, outfile, p_start, p_end,
relocs, nb_relocs);
get_reloc_expr(name, sizeof(name), sym_name);
type = ELF32_R_TYPE(rel->r_info);
addend = get32((uint32_t *)(text + rel->r_offset));
+ reloc_offset = rel->r_offset - start_offset;
switch(type) {
case R_ARM_ABS32:
fprintf(outfile, " *(uint32_t *)(gen_code_ptr + %d) = %s + %d;\n",
- rel->r_offset - start_offset, name, addend);
+ reloc_offset, name, addend);
break;
case R_ARM_PC24:
fprintf(outfile, " arm_reloc_pc24((uint32_t *)(gen_code_ptr + %d), 0x%x, %s);\n",
- rel->r_offset - start_offset, addend, name);
+ reloc_offset, addend, name);
break;
default:
error("unsupported arm relocation (%d)", type);
char name[256];
int type;
int addend;
+ int reloc_offset;
Elf32_Sym *sym;
for(i = 0, rel = relocs;i < nb_relocs; i++, rel++) {
if (rel->r_offset >= start_offset &&
get_reloc_expr(name, sizeof(name), sym_name);
type = ELF32_R_TYPE(rel->r_info);
addend = get32((uint32_t *)(text + rel->r_offset)) + rel->r_addend;
+ reloc_offset = rel->r_offset - start_offset;
switch(type) {
case R_68K_32:
fprintf(outfile, " /* R_68K_32 RELOC, offset %x */\n", rel->r_offset) ;
fprintf(outfile, " *(uint32_t *)(gen_code_ptr + %d) = %s + %#x;\n",
- rel->r_offset - start_offset, name, addend );
+ reloc_offset, name, addend );
break;
case R_68K_PC32:
fprintf(outfile, " /* R_68K_PC32 RELOC, offset %x */\n", rel->r_offset);
fprintf(outfile, " *(uint32_t *)(gen_code_ptr + %d) = %s - (long)(gen_code_ptr + %#x) + %#x;\n",
- rel->r_offset - start_offset, name, rel->r_offset - start_offset, /*sym->st_value+*/ addend);
+ reloc_offset, name, reloc_offset, /*sym->st_value+*/ addend);
break;
default:
error("unsupported m68k relocation (%d)", type);
" LDREntry *arm_ldr_ptr = arm_ldr_table;\n"
" uint32_t *arm_data_ptr = arm_data_table;\n");
#endif
+#ifdef HOST_IA64
+ {
+ long addend, not_first = 0;
+ unsigned long sym_idx;
+ int index, max_index;
+ const char *sym_name;
+ EXE_RELOC *rel;
+
+ max_index = -1;
+ for (i = 0, rel = relocs;i < nb_relocs; i++, rel++) {
+ sym_idx = ELF64_R_SYM(rel->r_info);
+ sym_name = (strtab + symtab[sym_idx].st_name);
+ if (strstart(sym_name, "__op_gen_label", NULL))
+ continue;
+ if (ELF64_R_TYPE(rel->r_info) != R_IA64_PCREL21B)
+ continue;
+
+ addend = rel->r_addend;
+ index = get_plt_index(sym_name, addend);
+ if (index <= max_index)
+ continue;
+ max_index = index;
+ fprintf(outfile, " extern void %s(void);\n", sym_name);
+ }
+
+ fprintf(outfile,
+ " struct ia64_fixup *plt_fixes = NULL, "
+ "*ltoff_fixes = NULL;\n"
+ " static long plt_target[] = {\n\t");
+
+ max_index = -1;
+ for (i = 0, rel = relocs;i < nb_relocs; i++, rel++) {
+ sym_idx = ELF64_R_SYM(rel->r_info);
+ sym_name = (strtab + symtab[sym_idx].st_name);
+ if (strstart(sym_name, "__op_gen_label", NULL))
+ continue;
+ if (ELF64_R_TYPE(rel->r_info) != R_IA64_PCREL21B)
+ continue;
+
+ addend = rel->r_addend;
+ index = get_plt_index(sym_name, addend);
+ if (index <= max_index)
+ continue;
+ max_index = index;
+
+ if (not_first)
+ fprintf(outfile, ",\n\t");
+ not_first = 1;
+ if (addend)
+ fprintf(outfile, "(long) &%s + %ld", sym_name, addend);
+ else
+ fprintf(outfile, "(long) &%s", sym_name);
+ }
+ fprintf(outfile, "\n };\n"
+ " unsigned int plt_offset[%u] = { 0 };\n", max_index + 1);
+ }
+#endif
fprintf(outfile,
"\n"
" }\n"
" the_end:\n"
);
+#ifdef HOST_IA64
+ fprintf(outfile,
+ " {\n"
+ " extern char code_gen_buffer[];\n"
+ " ia64_apply_fixes(&gen_code_ptr, ltoff_fixes, "
+ "(uint64_t) code_gen_buffer + 2*(1<<20), plt_fixes,\n\t\t\t"
+ "sizeof(plt_target)/sizeof(plt_target[0]),\n\t\t\t"
+ "plt_target, plt_offset);\n }\n");
+#endif
/* generate some code patching */
#ifdef HOST_ARM
projects / qemu / blobdiff