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| author | Paolo Bonzini <pbonzini@redhat.com> | 2013-09-05 10:22:08 +0200 |
|---|---|---|
| committer | Richard Henderson <rth@twiddle.net> | 2013-09-25 07:45:30 -0700 |
| commit | 6a115579883e6c0e56394bf7aaabd04260e11233 (patch) | |
| tree | 0659619abe3f8e28bf8993ddca1abb19326f938b | |
| parent | e3608d66cea318698a2c4361d4e11a0e224c36db (diff) | |
| download | qemu-6a115579883e6c0e56394bf7aaabd04260e11233.tar.gz qemu-6a115579883e6c0e56394bf7aaabd04260e11233.tar.bz2 qemu-6a115579883e6c0e56394bf7aaabd04260e11233.zip | |
tcg-ppc: fix qemu_ld/qemu_st for AIX ABI
For the AIX ABI, the function pointer and small area pointer need
to be loaded in the trampoline. The trampoline instead is called
with a normal BL instruction.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
| -rw-r--r-- | tcg/ppc/tcg-target.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/tcg/ppc/tcg-target.c b/tcg/ppc/tcg-target.c index 25955563b8..204ffbe5fb 100644 --- a/tcg/ppc/tcg-target.c +++ b/tcg/ppc/tcg-target.c @@ -490,7 +490,8 @@ static void tcg_out_b (TCGContext *s, int mask, tcg_target_long target) } } -static void tcg_out_call (TCGContext *s, tcg_target_long arg, int const_arg) +static void tcg_out_call (TCGContext *s, tcg_target_long arg, int const_arg, + int lk) { #ifdef _CALL_AIX int reg; @@ -504,14 +505,14 @@ static void tcg_out_call (TCGContext *s, tcg_target_long arg, int const_arg) tcg_out32 (s, LWZ | RT (0) | RA (reg)); tcg_out32 (s, MTSPR | RA (0) | CTR); tcg_out32 (s, LWZ | RT (2) | RA (reg) | 4); - tcg_out32 (s, BCCTR | BO_ALWAYS | LK); + tcg_out32 (s, BCCTR | BO_ALWAYS | lk); #else if (const_arg) { - tcg_out_b (s, LK, arg); + tcg_out_b (s, lk, arg); } else { tcg_out32 (s, MTSPR | RS (arg) | LR); - tcg_out32 (s, BCLR | BO_ALWAYS | LK); + tcg_out32 (s, BCLR | BO_ALWAYS | lk); } #endif } @@ -860,7 +861,7 @@ static void tcg_out_qemu_ld_slow_path (TCGContext *s, TCGLabelQemuLdst *label) tcg_out_mov (s, TCG_TYPE_I32, ir++, addr_reg); #endif tcg_out_movi (s, TCG_TYPE_I32, ir, mem_index); - tcg_out_call (s, (tcg_target_long) ld_trampolines[s_bits], 1); + tcg_out_b (s, LK, (tcg_target_long) ld_trampolines[s_bits]); tcg_out32 (s, (tcg_target_long) raddr); switch (opc) { case 0|4: @@ -954,7 +955,7 @@ static void tcg_out_qemu_st_slow_path (TCGContext *s, TCGLabelQemuLdst *label) ir++; tcg_out_movi (s, TCG_TYPE_I32, ir, mem_index); - tcg_out_call (s, (tcg_target_long) st_trampolines[opc], 1); + tcg_out_b (s, LK, (tcg_target_long) st_trampolines[opc]); tcg_out32 (s, (tcg_target_long) raddr); tcg_out_b (s, 0, (tcg_target_long) raddr); } @@ -984,7 +985,7 @@ static void emit_ldst_trampoline (TCGContext *s, const void *ptr) tcg_out32 (s, ADDI | RT (3) | RA (3) | 4); tcg_out32 (s, MTSPR | RS (3) | LR); tcg_out_mov (s, TCG_TYPE_I32, 3, TCG_AREG0); - tcg_out_b (s, 0, (tcg_target_long) ptr); + tcg_out_call (s, (tcg_target_long) ptr, 1, 0); } #endif @@ -1493,7 +1494,7 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc, const TCGArg *args, } break; case INDEX_op_call: - tcg_out_call (s, args[0], const_args[0]); + tcg_out_call (s, args[0], const_args[0], LK); break; case INDEX_op_movi_i32: tcg_out_movi(s, TCG_TYPE_I32, args[0], args[1]); |