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Diffstat (limited to 'tcg/ppc64/tcg-target.c')
-rw-r--r--tcg/ppc64/tcg-target.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/tcg/ppc64/tcg-target.c b/tcg/ppc64/tcg-target.c
index d3cc237b36..635ff987bb 100644
--- a/tcg/ppc64/tcg-target.c
+++ b/tcg/ppc64/tcg-target.c
@@ -1115,6 +1115,23 @@ static void tcg_out_call(TCGContext *s, tcg_insn_unit *target)
tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_R2, TCG_REG_R2, ofs + SZP);
tcg_out32(s, BCCTR | BO_ALWAYS | LK);
}
+#elif defined(_CALL_ELF) && _CALL_ELF == 2
+ intptr_t diff;
+
+ /* In the ELFv2 ABI, we have to set up r12 to contain the destination
+ address, which the callee uses to compute its TOC address. */
+ /* FIXME: when the branch is in range, we could avoid r12 load if we
+ knew that the destination uses the same TOC, and what its local
+ entry point offset is. */
+ tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R12, (intptr_t)target);
+
+ diff = tcg_pcrel_diff(s, target);
+ if (in_range_b(diff)) {
+ tcg_out_b(s, LK, target);
+ } else {
+ tcg_out32(s, MTSPR | RS(TCG_REG_R12) | CTR);
+ tcg_out32(s, BCCTR | BO_ALWAYS | LK);
+ }
#else
tcg_out_b(s, LK, target);
#endif