tcg: Move USE_DIRECT_JUMP discriminator to tcg/cpu/tcg-target.h

Replace the USE_DIRECT_JUMP ifdef with a TCG_TARGET_HAS_direct_jump
boolean test.  Replace the tb_set_jmp_target1 ifdef with an unconditional
function tb_target_set_jmp_target.

While we're touching all backends, add a parameter for tb->tc_ptr;
we're going to need it shortly for some backends.

Move tb_set_jmp_target and tb_add_jump from exec-all.h to cpu-exec.c.

This opens the possibility for TCG_TARGET_HAS_direct_jump to be
a runtime decision -- based on host cpu capabilities, the size of
code_gen_buffer, or a future debugging switch.

Signed-off-by: Richard Henderson <rth@twiddle.net>

1 files changed, 2 insertions, 2 deletions

diff --git a/tcg/tcg.h b/tcg/tcg.h
index 17b7750ee6..46957d9bd7 100644
--- a/tcg/tcg.h
+++ b/tcg/tcg.h
@@ -652,8 +652,8 @@ struct TCGContext {
     /* goto_tb support */
     tcg_insn_unit *code_buf;
     uint16_t *tb_jmp_reset_offset; /* tb->jmp_reset_offset */
-    uint16_t *tb_jmp_insn_offset; /* tb->jmp_insn_offset if USE_DIRECT_JUMP */
-    uintptr_t *tb_jmp_target_addr; /* tb->jmp_target_addr if !USE_DIRECT_JUMP */
+    uintptr_t *tb_jmp_insn_offset; /* tb->jmp_target_arg if direct_jump */
+    uintptr_t *tb_jmp_target_addr; /* tb->jmp_target_arg if !direct_jump */
 
     TCGRegSet reserved_regs;
     intptr_t current_frame_offset;