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[Qemu-devel] [PATCH 1/3] TCG: Mac OS X support for ppc64 target
From: |
Andreas Faerber |
Subject: |
[Qemu-devel] [PATCH 1/3] TCG: Mac OS X support for ppc64 target |
Date: |
Sun, 6 Dec 2009 05:57:55 +0100 |
Darwin/ppc64 does not use function descriptors,
adapt prologue and tcg_out_call accordingly.
GPR2 is available for general use, so let's use it.
http://developer.apple.com/mac/library/documentation/DeveloperTools/Conceptual/LowLevelABI/110-64-bit_PowerPC_Function_Calling_Conventions/64bitPowerPC.html
Signed-off-by: Andreas Faerber <address@hidden>
Cc: malc <address@hidden>
---
tcg/ppc64/tcg-target.c | 30 ++++++++++++++++++++++++++++++
1 files changed, 30 insertions(+), 0 deletions(-)
diff --git a/tcg/ppc64/tcg-target.c b/tcg/ppc64/tcg-target.c
index a612e10..bf9b7d9 100644
--- a/tcg/ppc64/tcg-target.c
+++ b/tcg/ppc64/tcg-target.c
@@ -104,6 +104,9 @@ static const int tcg_target_reg_alloc_order[] = {
TCG_REG_R29,
TCG_REG_R30,
TCG_REG_R31,
+#ifdef __APPLE__
+ TCG_REG_R2,
+#endif
TCG_REG_R3,
TCG_REG_R4,
TCG_REG_R5,
@@ -112,7 +115,9 @@ static const int tcg_target_reg_alloc_order[] = {
TCG_REG_R8,
TCG_REG_R9,
TCG_REG_R10,
+#ifndef __APPLE__
TCG_REG_R11,
+#endif
TCG_REG_R12,
TCG_REG_R24,
TCG_REG_R25,
@@ -136,6 +141,10 @@ static const int tcg_target_call_oarg_regs[2] = {
};
static const int tcg_target_callee_save_regs[] = {
+#ifdef __APPLE__
+ TCG_REG_R11,
+ TCG_REG_R13,
+#endif
TCG_REG_R14,
TCG_REG_R15,
TCG_REG_R16,
@@ -477,8 +486,21 @@ static void tcg_out_movi (TCGContext *s, TCGType type,
}
}
+#ifdef __APPLE__
+static void tcg_out_b (TCGContext *s, int mask, tcg_target_long target);
+#endif
+
static void tcg_out_call (TCGContext *s, tcg_target_long arg, int const_arg)
{
+#ifdef __APPLE__
+ if (const_arg) {
+ tcg_out_b (s, LK, arg);
+ }
+ else {
+ tcg_out32 (s, MTSPR | RS (arg) | LR);
+ tcg_out32 (s, BCLR | BO_ALWAYS | LK);
+ }
+#else
int reg;
if (const_arg) {
@@ -492,6 +514,7 @@ static void tcg_out_call (TCGContext *s, tcg_target_long
arg, int const_arg)
tcg_out32 (s, LD | RT (11) | RA (reg) | 16);
tcg_out32 (s, LD | RT (2) | RA (reg) | 8);
tcg_out32 (s, BCCTR | BO_ALWAYS | LK);
+#endif
}
static void tcg_out_ldst (TCGContext *s, int ret, int addr,
@@ -859,10 +882,12 @@ void tcg_target_qemu_prologue (TCGContext *s)
;
frame_size = (frame_size + 15) & ~15;
+#ifndef __APPLE__
/* First emit adhoc function descriptor */
addr = (uint64_t) s->code_ptr + 24;
tcg_out32 (s, addr >> 32); tcg_out32 (s, addr); /* entry point */
s->code_ptr += 16; /* skip TOC and environment pointer */
+#endif
/* Prologue */
tcg_out32 (s, MFSPR | RT (0) | LR);
@@ -1516,6 +1541,9 @@ void tcg_target_init (TCGContext *s)
tcg_regset_set32 (tcg_target_available_regs[TCG_TYPE_I64], 0, 0xffffffff);
tcg_regset_set32 (tcg_target_call_clobber_regs, 0,
(1 << TCG_REG_R0) |
+#ifdef __APPLE__
+ (1 << TCG_REG_R2) |
+#endif
(1 << TCG_REG_R3) |
(1 << TCG_REG_R4) |
(1 << TCG_REG_R5) |
@@ -1531,7 +1559,9 @@ void tcg_target_init (TCGContext *s)
tcg_regset_clear (s->reserved_regs);
tcg_regset_set_reg (s->reserved_regs, TCG_REG_R0);
tcg_regset_set_reg (s->reserved_regs, TCG_REG_R1);
+#ifndef __APPLE__
tcg_regset_set_reg (s->reserved_regs, TCG_REG_R2);
+#endif
tcg_regset_set_reg (s->reserved_regs, TCG_REG_R13);
#ifdef CONFIG_USE_GUEST_BASE
--
1.6.5.3
- [Qemu-devel] Adding support for Mac OS X ppc64 host, Andreas Faerber, 2009/12/05
- [Qemu-devel] [PATCH 1/3] TCG: Mac OS X support for ppc64 target,
Andreas Faerber <=
- [Qemu-devel] [PATCH 2/3] Cocoa: ppc64 host support, Andreas Faerber, 2009/12/05
- [Qemu-devel] Re: [PATCH 1/3] TCG: Mac OS X support for ppc64 target, malc, 2009/12/06
- [Qemu-devel] Re: [PATCH 1/3] TCG: Mac OS X support for ppc64 target, Andreas Färber, 2009/12/06
- [Qemu-devel] Re: [PATCH 1/3] TCG: Mac OS X support for ppc64 target, malc, 2009/12/06
- [Qemu-devel] [PATCH v2 1/3] TCG: Mac OS X support for ppc64 target, Andreas Faerber, 2009/12/06
- [Qemu-devel] [PATCH v2 2/3] Cocoa: ppc64 host support, Andreas Faerber, 2009/12/06
- [Qemu-devel] [PATCH v2 3/3] Cocoa: Silence warnings, Andreas Faerber, 2009/12/06
- [Qemu-devel] Re: [PATCH v2 2/3] Cocoa: ppc64 host support, Alexander Graf, 2009/12/06
- [Qemu-devel] Re: [PATCH v2 2/3] Cocoa: ppc64 host support, Andreas Färber, 2009/12/06