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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>
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@ -22,6 +22,10 @@
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* THE SOFTWARE.
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*/
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#if TCG_TARGET_REG_BITS != 32
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#error unsupported
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#endif
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#ifndef NDEBUG
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static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = {
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"%r0", "%r1", "%rp", "%r3", "%r4", "%r5", "%r6", "%r7",
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@ -25,10 +25,6 @@
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#ifndef TCG_TARGET_HPPA
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#define TCG_TARGET_HPPA 1
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#if TCG_TARGET_REG_BITS != 32
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#error unsupported
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#endif
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#define TCG_TARGET_WORDS_BIGENDIAN
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#define TCG_TARGET_NB_REGS 32
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@ -24,12 +24,14 @@
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#ifndef TCG_TARGET_I386
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#define TCG_TARGET_I386 1
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//#define TCG_TARGET_WORDS_BIGENDIAN
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#undef TCG_TARGET_WORDS_BIGENDIAN
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#if TCG_TARGET_REG_BITS == 64
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# define TCG_TARGET_NB_REGS 16
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#ifdef __x86_64__
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# define TCG_TARGET_REG_BITS 64
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# define TCG_TARGET_NB_REGS 16
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#else
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# define TCG_TARGET_NB_REGS 8
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# define TCG_TARGET_REG_BITS 32
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# define TCG_TARGET_NB_REGS 8
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#endif
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typedef enum {
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@ -24,6 +24,14 @@
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#ifndef TCG_TARGET_SPARC
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#define TCG_TARGET_SPARC 1
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#if UINTPTR_MAX == UINT32_MAX
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# define TCG_TARGET_REG_BITS 32
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#elif UINTPTR_MAX == UINT64_MAX
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# define TCG_TARGET_REG_BITS 64
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#else
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# error Unknown pointer size for tcg target
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#endif
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#define TCG_TARGET_WORDS_BIGENDIAN
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#define TCG_TARGET_NB_REGS 32
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19
tcg/tcg.h
19
tcg/tcg.h
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@ -23,13 +23,17 @@
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*/
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#include "qemu-common.h"
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/* Target word size (must be identical to pointer size). */
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#if UINTPTR_MAX == UINT32_MAX
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# define TCG_TARGET_REG_BITS 32
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#elif UINTPTR_MAX == UINT64_MAX
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# define TCG_TARGET_REG_BITS 64
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#else
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# error Unknown pointer size for tcg target
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#include "tcg-target.h"
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/* Default target word size to pointer size. */
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#ifndef TCG_TARGET_REG_BITS
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# if UINTPTR_MAX == UINT32_MAX
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# define TCG_TARGET_REG_BITS 32
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# elif UINTPTR_MAX == UINT64_MAX
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# define TCG_TARGET_REG_BITS 64
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# else
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# error Unknown pointer size for tcg target
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# endif
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#endif
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#if TCG_TARGET_REG_BITS == 32
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@ -46,7 +50,6 @@ typedef uint64_t tcg_target_ulong;
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#error unsupported
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#endif
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#include "tcg-target.h"
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#include "tcg-runtime.h"
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#if TCG_TARGET_NB_REGS <= 32
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@ -44,6 +44,14 @@
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#define TCG_TARGET_INTERPRETER 1
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#if UINTPTR_MAX == UINT32_MAX
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# define TCG_TARGET_REG_BITS 32
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#elif UINTPTR_MAX == UINT64_MAX
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# define TCG_TARGET_REG_BITS 64
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#else
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# error Unknown pointer size for tci target
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#endif
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#ifdef CONFIG_DEBUG_TCG
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/* Enable debug output. */
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#define CONFIG_DEBUG_TCG_INTERPRETER
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