[Qemu-devel] [PATCH v3 36/43] tcg: introduce **tcg_ctxs to keep track of all TCGContext's

["Emilio G. Cota" <cota@braap.org>]

Groundwork for supporting multiple TCG contexts.

Note that having n_tcg_ctxs is unnecessary. However, it is
convenient to have it, since it will simplify iterating over the
array: we'll have just a for loop instead of having to iterate
over a NULL-terminated array (which would require n+1 elems)
or having to check with ifdef's for usermode/softmmu.

Signed-off-by: Emilio G. Cota <cota@braap.org>
---
 tcg/tcg.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tcg/tcg.c b/tcg/tcg.c
index f907c47..2217314 100644
--- a/tcg/tcg.c
+++ b/tcg/tcg.c
@@ -115,6 +115,8 @@ static int tcg_target_const_match(tcg_target_long val, TCGType type,
 static void tcg_out_tb_init(TCGContext *s);
 static bool tcg_out_tb_finalize(TCGContext *s);
 
+static TCGContext **tcg_ctxs;
+static unsigned int n_tcg_ctxs;
 
 static TCGRegSet tcg_target_available_regs[2];
 static TCGRegSet tcg_target_call_clobber_regs;
@@ -382,6 +384,8 @@ void tcg_context_init(TCGContext *s)
     }
 
     tcg_ctx = s;
+    tcg_ctxs = &tcg_ctx;
+    n_tcg_ctxs = 1;
 }
 
 /*
-- 
2.7.4