Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.c-torture/compile/pr45535.c @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
---|---|
date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | 04ced10e8804 |
children |
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typedef struct { unsigned long pmd0; unsigned long pmd1; } pmd_t; typedef unsigned int pgd_t; struct mm_struct { pgd_t * pgd; }; extern inline int pmd_bad(pmd_t pmd) { } extern inline void pmd_clear(pmd_t * pmdp) { ((*pmdp).pmd0) = 0x20 | 0x00; ((*pmdp).pmd1) = 0x20 | 0x00; } static inline void free_one_pmd(pmd_t * dir) { if (pmd_bad(*dir)) { pmd_clear(dir); } } static inline void free_one_pgd(pgd_t * dir) { int j; pmd_t * pmd; pmd = ((pmd_t *) ((unsigned long) (void *)(__pgd_val(dir) & (~((1UL << 12)-1)))) + (((0) >> 21) & (512 - 1))); for (j = 0; j < 512 ; j++) { free_one_pmd(pmd+j); } } void clear_page_tables(struct mm_struct *mm, unsigned long first, int nr) { pgd_t * page_dir = mm->pgd; do { free_one_pgd(page_dir); } while (--nr); }