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tcg: Allow TCG_TARGET_REG_BITS to be specified independantly

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There are several hosts for which it would be useful to use the
available 64-bit registers in a 32-bit pointer environment.

Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2013-08-20 14:41:29 -07:00
parent 3e9bd63acf
commit 78cd7b835e
6 changed files with 37 additions and 16 deletions
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4
tcg/hppa/tcg-target.c
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@ -22,6 +22,10 @@
* THE SOFTWARE.
*/
#if TCG_TARGET_REG_BITS != 32
#error unsupported
#endif
#ifndef NDEBUG
static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = {
"%r0", "%r1", "%rp", "%r3", "%r4", "%r5", "%r6", "%r7",

4
tcg/hppa/tcg-target.h
View File

@ -25,10 +25,6 @@
#ifndef TCG_TARGET_HPPA
#define TCG_TARGET_HPPA 1
#if TCG_TARGET_REG_BITS != 32
#error unsupported
#endif
#define TCG_TARGET_WORDS_BIGENDIAN
#define TCG_TARGET_NB_REGS 32

10
tcg/i386/tcg-target.h
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@ -24,12 +24,14 @@
#ifndef TCG_TARGET_I386
#define TCG_TARGET_I386 1
//#define TCG_TARGET_WORDS_BIGENDIAN
#undef TCG_TARGET_WORDS_BIGENDIAN
#if TCG_TARGET_REG_BITS == 64
# define TCG_TARGET_NB_REGS 16
#ifdef __x86_64__
# define TCG_TARGET_REG_BITS 64
# define TCG_TARGET_NB_REGS 16
#else
# define TCG_TARGET_NB_REGS 8
# define TCG_TARGET_REG_BITS 32
# define TCG_TARGET_NB_REGS 8
#endif
typedef enum {

8
tcg/sparc/tcg-target.h
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@ -24,6 +24,14 @@
#ifndef TCG_TARGET_SPARC
#define TCG_TARGET_SPARC 1
#if UINTPTR_MAX == UINT32_MAX
# define TCG_TARGET_REG_BITS 32
#elif UINTPTR_MAX == UINT64_MAX
# define TCG_TARGET_REG_BITS 64
#else
# error Unknown pointer size for tcg target
#endif
#define TCG_TARGET_WORDS_BIGENDIAN
#define TCG_TARGET_NB_REGS 32

19
tcg/tcg.h
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@ -23,13 +23,17 @@
*/
#include "qemu-common.h"
/* Target word size (must be identical to pointer size). */
#if UINTPTR_MAX == UINT32_MAX
# define TCG_TARGET_REG_BITS 32
#elif UINTPTR_MAX == UINT64_MAX
# define TCG_TARGET_REG_BITS 64
#else
# error Unknown pointer size for tcg target
#include "tcg-target.h"
/* Default target word size to pointer size. */
#ifndef TCG_TARGET_REG_BITS
# if UINTPTR_MAX == UINT32_MAX
# define TCG_TARGET_REG_BITS 32
# elif UINTPTR_MAX == UINT64_MAX
# define TCG_TARGET_REG_BITS 64
# else
# error Unknown pointer size for tcg target
# endif
#endif
#if TCG_TARGET_REG_BITS == 32
@ -46,7 +50,6 @@ typedef uint64_t tcg_target_ulong;
#error unsupported
#endif
#include "tcg-target.h"
#include "tcg-runtime.h"
#if TCG_TARGET_NB_REGS <= 32

8
tcg/tci/tcg-target.h
View File

@ -44,6 +44,14 @@
#define TCG_TARGET_INTERPRETER 1
#if UINTPTR_MAX == UINT32_MAX
# define TCG_TARGET_REG_BITS 32
#elif UINTPTR_MAX == UINT64_MAX
# define TCG_TARGET_REG_BITS 64
#else
# error Unknown pointer size for tci target
#endif
#ifdef CONFIG_DEBUG_TCG
/* Enable debug output. */
#define CONFIG_DEBUG_TCG_INTERPRETER