Relocation callbacks are used for the TCI instructions to preserve the
original logic of the TCI backend.
Signed-off-by: Kohei Tokunaga <ktokunaga.m...@gmail.com>
---
tcg/wasm/tcg-target.c.inc | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/tcg/wasm/tcg-target.c.inc b/tcg/wasm/tcg-target.c.inc
index 0b12c4ea03..4bcb594360 100644
--- a/tcg/wasm/tcg-target.c.inc
+++ b/tcg/wasm/tcg-target.c.inc
@@ -88,3 +88,24 @@ static bool tcg_target_const_match(int64_t val, int ct,
{
return ct & TCG_CT_CONST;
}
+
+static void tcg_out_nop_fill(tcg_insn_unit *p, int count)
+{
+ memset(p, 0, sizeof(*p) * count);
+}
+
+static bool patch_reloc(tcg_insn_unit *code_ptr, int type,
+ intptr_t value, intptr_t addend)
+{
+ intptr_t diff = value - (intptr_t)(code_ptr + 4);
+
+ tcg_debug_assert(addend == 0);
+ tcg_debug_assert(type == 20);
+
+ if (diff == sextract32(diff, 0, type)) {
+ tcg_patch32(code_ptr,
+ deposit32(*(uint32_t *)code_ptr, 32 - type, type, diff));
+ return true;
+ }
+ return false;
+}
--
2.43.0
