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Emit and use adhoc function descriptor for code_gen_prologue on PPC64

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Thus avoiding fragile inline assembly hackery to call into generated
code.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4939 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
malc 2008-07-24 17:37:09 +00:00
parent 0b8f1b102b
commit a69abbe0b3
2 changed files with 10 additions and 18 deletions
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17
tcg/tcg.h
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@ -413,24 +413,9 @@ uint64_t tcg_helper_divu_i64(uint64_t arg1, uint64_t arg2);
uint64_t tcg_helper_remu_i64(uint64_t arg1, uint64_t arg2);
extern uint8_t code_gen_prologue[];
#ifdef __powerpc__
#ifdef __powerpc64__
#define tcg_qemu_tb_exec(tb_ptr) \
({ unsigned long p; \
asm volatile ( \
"mtctr %1\n\t" \
"mr 3,%2\n\t" \
"bctrl\n\t" \
"mr %0,3\n\t" \
: "=r" (p) \
: "r" (code_gen_prologue), "r" (tb_ptr) \
: "3", "4", "5", "6", "7", "8", "9", "10", "11", "12"); \
p; \
})
#else
#if defined(__powerpc__) && !defined(__powerpc64__)
#define tcg_qemu_tb_exec(tb_ptr) \
((long REGPARM __attribute__ ((longcall)) (*)(void *))code_gen_prologue)(tb_ptr)
#endif
#else
#define tcg_qemu_tb_exec(tb_ptr) ((long REGPARM (*)(void *))code_gen_prologue)(tb_ptr)
#endif