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-rw-r--r--dyngen.c63
1 files changed, 54 insertions, 9 deletions
diff --git a/dyngen.c b/dyngen.c
index a8e2958e87..5fb921e28d 100644
--- a/dyngen.c
+++ b/dyngen.c
@@ -1442,9 +1442,12 @@ void gen_code(const char *name, host_ulong offset, host_ulong size,
{
#define INSN_SAVE 0x9de3a000
#define INSN_RET 0x81c7e008
+#define INSN_RETL 0x81c3e008
#define INSN_RESTORE 0x81e80000
#define INSN_RETURN 0x81cfe008
#define INSN_NOP 0x01000000
+#define INSN_ADD_SP 0x9c03a000 // add %sp, nn, %sp
+#define INSN_SUB_SP 0x9c23a000 // sub %sp, nn, %sp
uint32_t start_insn, end_insn1, end_insn2;
uint8_t *p;
@@ -1454,18 +1457,21 @@ void gen_code(const char *name, host_ulong offset, host_ulong size,
start_insn = get32((uint32_t *)(p_start + 0x0));
end_insn1 = get32((uint32_t *)(p + 0x0));
end_insn2 = get32((uint32_t *)(p + 0x4));
- if ((start_insn & ~0x1fff) == INSN_SAVE) {
+ if (((start_insn & ~0x1fff) == INSN_SAVE) ||
+ (start_insn & ~0x1fff) == INSN_ADD_SP) {
p_start += 0x4;
start_offset += 0x4;
- if ((int)(start_insn | ~0x1fff) < -128)
- error("Found bogus save at the start of %s", name);
if (end_insn1 == INSN_RET && end_insn2 == INSN_RESTORE)
/* SPARC v7: ret; restore; */ ;
else if (end_insn1 == INSN_RETURN && end_insn2 == INSN_NOP)
/* SPARC v9: return; nop; */ ;
+ else if (end_insn1 == INSN_RETL && (end_insn2 & ~0x1fff) == INSN_SUB_SP)
+ /* SPARC v7: retl; sub %sp, nn, %sp; */ ;
else
error("ret; restore; not found at end of %s", name);
+ } else if (end_insn1 == INSN_RETL && end_insn2 == INSN_NOP) {
+ ;
} else {
error("No save at the beginning of %s", name);
}
@@ -1481,21 +1487,41 @@ void gen_code(const char *name, host_ulong offset, host_ulong size,
}
#elif defined(HOST_SPARC64)
{
+#define INSN_SAVE 0x9de3a000
+#define INSN_RET 0x81c7e008
+#define INSN_RETL 0x81c3e008
+#define INSN_RESTORE 0x81e80000
+#define INSN_RETURN 0x81cfe008
+#define INSN_NOP 0x01000000
+#define INSN_ADD_SP 0x9c03a000 // add %sp, nn, %sp
+#define INSN_SUB_SP 0x9c23a000 // sub %sp, nn, %sp
+
uint32_t start_insn, end_insn1, end_insn2, skip_insn;
uint8_t *p;
p = (void *)(p_end - 8);
+#if 0
+ /* XXX: check why it occurs */
if (p <= p_start)
error("empty code for %s", name);
+#endif
start_insn = get32((uint32_t *)(p_start + 0x0));
end_insn1 = get32((uint32_t *)(p + 0x0));
end_insn2 = get32((uint32_t *)(p + 0x4));
- if ((start_insn & ~0x1fff) == 0x9de3a000) {
+ if (((start_insn & ~0x1fff) == INSN_SAVE) ||
+ (start_insn & ~0x1fff) == INSN_ADD_SP) {
p_start += 0x4;
start_offset += 0x4;
- if ((int)(start_insn | ~0x1fff) < -256)
- error("Found bogus save at the start of %s", name);
- if (end_insn1 != 0x81c7e008 || end_insn2 != 0x81e80000)
+ if (end_insn1 == INSN_RET && end_insn2 == INSN_RESTORE)
+ /* SPARC v7: ret; restore; */ ;
+ else if (end_insn1 == INSN_RETURN && end_insn2 == INSN_NOP)
+ /* SPARC v9: return; nop; */ ;
+ else if (end_insn1 == INSN_RETL && (end_insn2 & ~0x1fff) == INSN_SUB_SP)
+ /* SPARC v7: retl; sub %sp, nn, %sp; */ ;
+ else
+
error("ret; restore; not found at end of %s", name);
+ } else if (end_insn1 == INSN_RETL && end_insn2 == INSN_NOP) {
+ ;
} else {
error("No save at the beginning of %s", name);
}
@@ -2191,7 +2217,7 @@ void gen_code(const char *name, host_ulong offset, host_ulong size,
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);
+ type = ELF32_R_TYPE(rel->r_info);
addend = rel->r_addend;
reloc_offset = rel->r_offset - start_offset;
switch(type) {
@@ -2215,6 +2241,15 @@ void gen_code(const char *name, host_ulong offset, host_ulong size,
" | ((%s + %d) & 0x3ff);\n",
reloc_offset, reloc_offset, name, addend);
break;
+ case R_SPARC_OLO10:
+ addend += ELF64_R_TYPE_DATA (rel->r_info);
+ fprintf(outfile,
+ " *(uint32_t *)(gen_code_ptr + %d) = "
+ "((*(uint32_t *)(gen_code_ptr + %d)) "
+ " & ~0x3ff) "
+ " | ((%s + %d) & 0x3ff);\n",
+ reloc_offset, reloc_offset, name, addend);
+ break;
case R_SPARC_WDISP30:
fprintf(outfile,
" *(uint32_t *)(gen_code_ptr + %d) = "
@@ -2225,8 +2260,18 @@ void gen_code(const char *name, host_ulong offset, host_ulong size,
reloc_offset, reloc_offset, name, addend,
reloc_offset);
break;
+ case R_SPARC_WDISP22:
+ fprintf(outfile,
+ " *(uint32_t *)(gen_code_ptr + %d) = "
+ "((*(uint32_t *)(gen_code_ptr + %d)) "
+ " & ~0x3fffff) "
+ " | ((((%s + %d) - (long)(gen_code_ptr + %d))>>2) "
+ " & 0x3fffff);\n",
+ reloc_offset, reloc_offset, name, addend,
+ reloc_offset);
+ break;
default:
- error("unsupported sparc64 relocation (%d)", type);
+ error("unsupported sparc64 relocation (%d) for symbol %s", type, name);
}
}
}