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translate-all: define and use DEBUG_TB_INVALIDATE_GATE

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This gets rid of an ifdef check while ensuring that the debug code
is compiled, which prevents bit rot.

Backports commit dae9e03aed8e652f5dce2e5cab05dff83aa193b8 from qemu
This commit is contained in:
Emilio G. Cota 2018-03-05 02:50:23 -05:00 committed by Lioncash
parent 5fc83f3eb2
commit f778c02bbc
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1 changed files with 9 additions and 3 deletions
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12
qemu/translate-all.c
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@ -66,6 +66,12 @@
/* make various TB consistency checks */ /* make various TB consistency checks */
/* #define DEBUG_TB_CHECK */ /* #define DEBUG_TB_CHECK */
#ifdef DEBUG_TB_INVALIDATE
#define DEBUG_TB_INVALIDATE_GATE 1
#else
#define DEBUG_TB_INVALIDATE_GATE 0
#endif
#ifdef DEBUG_TB_FLUSH #ifdef DEBUG_TB_FLUSH
#define DEBUG_TB_FLUSH_GATE 1 #define DEBUG_TB_FLUSH_GATE 1
#else #else
@ -1249,9 +1255,9 @@ static inline void tb_alloc_page(struct uc_struct *uc, TranslationBlock *tb,
} }
mprotect(g2h(page_addr), uc->qemu_host_page_size, mprotect(g2h(page_addr), uc->qemu_host_page_size,
(prot & PAGE_BITS) & ~PAGE_WRITE); (prot & PAGE_BITS) & ~PAGE_WRITE);
#ifdef DEBUG_TB_INVALIDATE if (DEBUG_TB_INVALIDATE_GATE) {
printf("protecting code page: 0x" TB_PAGE_ADDR_FMT "\n", page_addr); printf("protecting code page: 0x" TB_PAGE_ADDR_FMT "\n", page_addr);
#endif }
} }
#else #else
/* if some code is already present, then the pages are already /* if some code is already present, then the pages are already