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authorRichard Henderson <rth@twiddle.net>2013-08-20 14:41:29 -0700
committerRichard Henderson <rth@twiddle.net>2013-09-02 09:08:29 -0700
commit78cd7b835e13bee4416782b6ed41e9bef76e3cfc (patch)
tree72df31f9f5507454d5f9a3e10ada1498f105516d
parent3e9bd63acf145bb2d3da277ee85167878ade53bd (diff)
downloadqemu-arm-78cd7b835e13bee4416782b6ed41e9bef76e3cfc.tar.gz
tcg: Allow TCG_TARGET_REG_BITS to be specified independantly
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>
-rw-r--r--tcg/hppa/tcg-target.c4
-rw-r--r--tcg/hppa/tcg-target.h4
-rw-r--r--tcg/i386/tcg-target.h10
-rw-r--r--tcg/sparc/tcg-target.h8
-rw-r--r--tcg/tcg.h19
-rw-r--r--tcg/tci/tcg-target.h8
6 files changed, 37 insertions, 16 deletions
diff --git a/tcg/hppa/tcg-target.c b/tcg/hppa/tcg-target.c
index 68f77ba4dd..e5aed91987 100644
--- a/tcg/hppa/tcg-target.c
+++ b/tcg/hppa/tcg-target.c
@@ -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",
diff --git a/tcg/hppa/tcg-target.h b/tcg/hppa/tcg-target.h
index be5895f847..122edce7a7 100644
--- a/tcg/hppa/tcg-target.h
+++ b/tcg/hppa/tcg-target.h
@@ -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
diff --git a/tcg/i386/tcg-target.h b/tcg/i386/tcg-target.h
index 1f6c7eb8a5..d32d7ef6f0 100644
--- a/tcg/i386/tcg-target.h
+++ b/tcg/i386/tcg-target.h
@@ -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 {
diff --git a/tcg/sparc/tcg-target.h b/tcg/sparc/tcg-target.h
index c0d3abcc7d..2edf858733 100644
--- a/tcg/sparc/tcg-target.h
+++ b/tcg/sparc/tcg-target.h
@@ -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
diff --git a/tcg/tcg.h b/tcg/tcg.h
index 2fce485abc..8a5e55bcc4 100644
--- a/tcg/tcg.h
+++ b/tcg/tcg.h
@@ -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
diff --git a/tcg/tci/tcg-target.h b/tcg/tci/tcg-target.h
index 02e0da1304..c2ecfbe047 100644
--- a/tcg/tci/tcg-target.h
+++ b/tcg/tci/tcg-target.h
@@ -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