diff options
Diffstat (limited to 'tcg/ppc64/tcg-target.c')
| -rw-r--r-- | tcg/ppc64/tcg-target.c | 17 |
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 |