diff options
| -rw-r--r-- | ldso/ldso/arm/dl-sysdep.h | 29 | ||||
| -rw-r--r-- | ldso/ldso/arm/ld_sysdep.h | 29 |
2 files changed, 56 insertions, 2 deletions
diff --git a/ldso/ldso/arm/dl-sysdep.h b/ldso/ldso/arm/dl-sysdep.h index 74abb305e..ef994caad 100644 --- a/ldso/ldso/arm/dl-sysdep.h +++ b/ldso/ldso/arm/dl-sysdep.h @@ -89,7 +89,34 @@ struct elf_resolve; unsigned long _dl_linux_resolver(struct elf_resolve * tpnt, int reloc_entry); -#define do_rem(result, n, base) result = (n % base) +static inline unsigned long arm_modulus(unsigned long m, unsigned long p) { + unsigned long i,t,inc; + i=p; t=0; + while(!(i&(1<<31))) { + i<<=1; + t++; + } + t--; + for(inc=t;inc>2;inc--) { + i=p<<inc; + if(i&(1<<31)) + break; + while(m>=i) { + m-=i; + i<<=1; + if(i&(1<<31)) + break; + if(i<p) + break; + } + } + while(m>=p) { + m-=p; + } + return m; +} + +#define do_rem(result, n, base) result=arm_modulus(n,base); /* 4096 bytes alignment */ #define PAGE_ALIGN 0xfffff000 diff --git a/ldso/ldso/arm/ld_sysdep.h b/ldso/ldso/arm/ld_sysdep.h index 74abb305e..ef994caad 100644 --- a/ldso/ldso/arm/ld_sysdep.h +++ b/ldso/ldso/arm/ld_sysdep.h @@ -89,7 +89,34 @@ struct elf_resolve; unsigned long _dl_linux_resolver(struct elf_resolve * tpnt, int reloc_entry); -#define do_rem(result, n, base) result = (n % base) +static inline unsigned long arm_modulus(unsigned long m, unsigned long p) { + unsigned long i,t,inc; + i=p; t=0; + while(!(i&(1<<31))) { + i<<=1; + t++; + } + t--; + for(inc=t;inc>2;inc--) { + i=p<<inc; + if(i&(1<<31)) + break; + while(m>=i) { + m-=i; + i<<=1; + if(i&(1<<31)) + break; + if(i<p) + break; + } + } + while(m>=p) { + m-=p; + } + return m; +} + +#define do_rem(result, n, base) result=arm_modulus(n,base); /* 4096 bytes alignment */ #define PAGE_ALIGN 0xfffff000 |