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replace a left shift from -1 by left shift of ~0

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because a left shift of -1 isn't defined in the C standard
This commit is contained in:
Stefan Lankes 2016-03-20 00:58:39 +01:00
parent 317d3300b4
commit f3f1af3526
2 changed files with 4 additions and 4 deletions
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4
hermit/arch/x86/include/asm/page.h
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@ -46,9 +46,9 @@
#define PAGE_SIZE ( 1L << PAGE_BITS)
/// Mask the page address without page map flags and XD flag
#if 0
#define PAGE_MASK (-1L << PAGE_BITS)
#define PAGE_MASK ((~0L) << PAGE_BITS)
#else
#define PAGE_MASK ((-1L << PAGE_BITS) & ~PG_XD)
#define PAGE_MASK (((~0L) << PAGE_BITS) & ~PG_XD)
#endif
#if 0

4
hermit/mm/vma.c
View file

@ -39,8 +39,8 @@
extern const void kernel_start;
extern const void kernel_end;
#define PAGE_2M_FLOOR(addr) (((addr) + (1L << 21) - 1) & (-1L << 21))
#define PAGE_2M_CEIL(addr) ( (addr) & (-1L << 21))
#define PAGE_2M_FLOOR(addr) (((addr) + (1L << 21) - 1) & ((~0L) << 21))
#define PAGE_2M_CEIL(addr) ( (addr) & ((~0L) << 21))
/*
* Kernel space VMA list and lock