#ifndef __ARM_FLAT_H__
#define __ARM_FLAT_H__
+#include <linux/uaccess.h>
+
#define flat_argvp_envp_on_stack() 1
#define flat_old_ram_flag(flags) (flags)
#define flat_reloc_valid(reloc, size) ((reloc) <= (size))
-#define flat_get_addr_from_rp(rp, relval, flags, persistent) \
- ({ unsigned long __val; __get_user_unaligned(__val, rp); __val; })
-#define flat_put_addr_at_rp(rp, val, relval) __put_user_unaligned(val, rp)
+
+static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
+ u32 *addr, u32 *persistent)
+{
+#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
+ return copy_from_user(addr, rp, 4) ? -EFAULT : 0;
+#else
+ return get_user(*addr, rp);
+#endif
+}
+
+static inline int flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 rel)
+{
+#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
+ return copy_to_user(rp, &addr, 4) ? -EFAULT : 0;
+#else
+ return put_user(addr, rp);
+#endif
+}
+
#define flat_get_relocate_addr(rel) (rel)
#define flat_set_persistent(relval, p) 0
#define flat_argvp_envp_on_stack() 0
#define flat_old_ram_flag(flags) (flags)
-extern unsigned long bfin_get_addr_from_rp (unsigned long *ptr,
- unsigned long relval,
- unsigned long flags,
- unsigned long *persistent);
+extern unsigned long bfin_get_addr_from_rp (u32 *ptr, u32 relval,
+ u32 flags, u32 *persistent);
-extern void bfin_put_addr_at_rp(unsigned long *ptr, unsigned long addr,
- unsigned long relval);
+extern void bfin_put_addr_at_rp(u32 *ptr, u32 addr, u32 relval);
/* The amount by which a relocation can exceed the program image limits
without being regarded as an error. */
#define flat_reloc_valid(reloc, size) ((reloc) <= (size))
-#define flat_get_addr_from_rp(rp, relval, flags, persistent) \
- bfin_get_addr_from_rp(rp, relval, flags, persistent)
-#define flat_put_addr_at_rp(rp, val, relval) \
- bfin_put_addr_at_rp(rp, val, relval)
+static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
+ u32 *addr, u32 *persistent)
+{
+ *addr = bfin_get_addr_from_rp(rp, relval, flags, persistent);
+ return 0;
+}
+
+static inline int flat_put_addr_at_rp(u32 __user *rp, u32 val, u32 relval)
+{
+ bfin_put_addr_at_rp(rp, val, relval);
+ return 0;
+}
/* Convert a relocation entry into an address. */
static inline unsigned long
#define FLAT_BFIN_RELOC_TYPE_16H_BIT 1
#define FLAT_BFIN_RELOC_TYPE_32_BIT 2
-unsigned long bfin_get_addr_from_rp(unsigned long *ptr,
- unsigned long relval,
- unsigned long flags,
- unsigned long *persistent)
+unsigned long bfin_get_addr_from_rp(u32 *ptr,
+ u32 relval,
+ u32 flags,
+ u32 *persistent)
{
unsigned short *usptr = (unsigned short *)ptr;
int type = (relval >> 26) & 7;
- unsigned long val;
+ u32 val;
switch (type) {
case FLAT_BFIN_RELOC_TYPE_16_BIT:
* Insert the address ADDR into the symbol reference at RP;
* RELVAL is the raw relocation-table entry from which RP is derived
*/
-void bfin_put_addr_at_rp(unsigned long *ptr, unsigned long addr,
- unsigned long relval)
+void bfin_put_addr_at_rp(u32 *ptr, u32 addr, u32 relval)
{
unsigned short *usptr = (unsigned short *)ptr;
int type = (relval >> 26) & 7;
#ifndef __ASM_C6X_FLAT_H
#define __ASM_C6X_FLAT_H
+#include <asm/unaligned.h>
+
#define flat_argvp_envp_on_stack() 0
#define flat_old_ram_flag(flags) (flags)
#define flat_reloc_valid(reloc, size) ((reloc) <= (size))
-#define flat_get_addr_from_rp(rp, relval, flags, p) get_unaligned(rp)
-#define flat_put_addr_at_rp(rp, val, relval) put_unaligned(val, rp)
+static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
+ u32 *addr, u32 *persistent)
+{
+ *addr = get_unaligned((__force u32 *)rp);
+ return 0;
+}
+static inline int flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 rel)
+{
+ put_unaligned(addr, (__force u32 *)rp);
+ return 0;
+}
#define flat_get_relocate_addr(rel) (rel)
#define flat_set_persistent(relval, p) 0
#ifndef __H8300_FLAT_H__
#define __H8300_FLAT_H__
+#include <asm/unaligned.h>
+
#define flat_argvp_envp_on_stack() 1
#define flat_old_ram_flag(flags) 1
#define flat_reloc_valid(reloc, size) ((reloc) <= (size))
*/
#define flat_get_relocate_addr(rel) (rel & ~0x00000001)
-#define flat_get_addr_from_rp(rp, relval, flags, persistent) \
- ({(void)persistent; \
- get_unaligned(rp) & (((flags) & FLAT_FLAG_GOTPIC) ? \
- 0xffffffff : 0x00ffffff); })
-#define flat_put_addr_at_rp(rp, addr, rel) \
- put_unaligned(((*(char *)(rp)) << 24) | ((addr) & 0x00ffffff), (rp))
+static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
+ u32 *addr, u32 *persistent)
+{
+ u32 val = get_unaligned((__force u32 *)rp);
+ if (!(flags & FLAT_FLAG_GOTPIC)
+ val &= 0x00ffffff;
+ *addr = val;
+ return 0;
+}
+
+static inline int flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 rel)
+{
+ u32 *p = (__force u32 *)rp;
+ put_unaligned((addr & 0x00ffffff) | (*(char *)p << 24), p);
+ return 0;
+}
#endif /* __H8300_FLAT_H__ */
#define flat_set_persistent(relval, p) 0
#define flat_reloc_valid(reloc, size) \
(((reloc) - textlen_for_m32r_lo16_data) <= (size))
-#define flat_get_addr_from_rp(rp, relval, flags, persistent) \
- m32r_flat_get_addr_from_rp(rp, relval, (text_len) )
-
-#define flat_put_addr_at_rp(rp, addr, relval) \
- m32r_flat_put_addr_at_rp(rp, addr, relval)
/* Convert a relocation entry into an address. */
static inline unsigned long
static unsigned long textlen_for_m32r_lo16_data = 0;
-static inline unsigned long m32r_flat_get_addr_from_rp (unsigned long *rp,
- unsigned long relval,
- unsigned long textlen)
+static inline unsigned long m32r_flat_get_addr_from_rp (u32 *rp,
+ u32 relval,
+ u32 textlen)
{
unsigned int reloc = flat_m32r_get_reloc_type (relval);
textlen_for_m32r_lo16_data = 0;
return ~0; /* bogus value */
}
-static inline void m32r_flat_put_addr_at_rp (unsigned long *rp,
- unsigned long addr,
- unsigned long relval)
+static inline void flat_put_addr_at_rp(u32 *rp, u32 addr, u32 relval)
{
unsigned int reloc = flat_m32r_get_reloc_type (relval);
if (reloc & 0xf0) {
}
}
+// kludge - text_len is a local variable in the only user.
+#define flat_get_addr_from_rp(rp, relval, flags, addr, persistent) \
+ (m32r_flat_get_addr_from_rp(rp, relval, text_len), 0)
+
#endif /* __ASM_M32R_FLAT_H */
#ifndef __M68KNOMMU_FLAT_H__
#define __M68KNOMMU_FLAT_H__
+#include <linux/uaccess.h>
+
#define flat_argvp_envp_on_stack() 1
#define flat_old_ram_flag(flags) (flags)
#define flat_reloc_valid(reloc, size) ((reloc) <= (size))
-#define flat_get_addr_from_rp(rp, relval, flags, p) \
- ({ unsigned long __val; __get_user_unaligned(__val, rp); __val; })
-#define flat_put_addr_at_rp(rp, val, relval) __put_user_unaligned(val, rp)
+static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
+ u32 *addr, u32 *persistent)
+{
+#ifdef CONFIG_CPU_HAS_NO_UNALIGNED
+ return copy_from_user(addr, rp, 4) ? -EFAULT : 0;
+#else
+ return get_user(*addr, rp);
+#endif
+}
+
+static inline int flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 rel)
+{
+#ifdef CONFIG_CPU_HAS_NO_UNALIGNED
+ return copy_to_user(rp, &addr, 4) ? -EFAULT : 0;
+#else
+ return put_user(addr, rp);
+#endif
+}
#define flat_get_relocate_addr(rel) (rel)
static inline int flat_set_persistent(unsigned long relval,
* reference
*/
-static inline unsigned long
-flat_get_addr_from_rp(unsigned long *rp, unsigned long relval,
- unsigned long flags, unsigned long *persistent)
+static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
+ u32 *addr, u32 *persistent)
{
- unsigned long addr;
- (void)flags;
+ u32 *p = (__force u32 *)rp;
/* Is it a split 64/32 reference? */
if (relval & 0x80000000) {
/* Grab the two halves of the reference */
- unsigned long val_hi, val_lo;
+ u32 val_hi, val_lo;
- val_hi = get_unaligned(rp);
- val_lo = get_unaligned(rp+1);
+ val_hi = get_unaligned(p);
+ val_lo = get_unaligned(p+1);
/* Crack the address out */
- addr = ((val_hi & 0xffff) << 16) + (val_lo & 0xffff);
+ *addr = ((val_hi & 0xffff) << 16) + (val_lo & 0xffff);
} else {
/* Get the address straight out */
- addr = get_unaligned(rp);
+ *addr = get_unaligned(p);
}
- return addr;
+ return 0;
}
/*
*/
static inline void
-flat_put_addr_at_rp(unsigned long *rp, unsigned long addr, unsigned long relval)
+flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 relval)
{
+ u32 *p = (__force u32 *)rp;
/* Is this a split 64/32 reloc? */
if (relval & 0x80000000) {
/* Get the two "halves" */
- unsigned long val_hi = get_unaligned(rp);
- unsigned long val_lo = get_unaligned(rp + 1);
+ unsigned long val_hi = get_unaligned(p);
+ unsigned long val_lo = get_unaligned(p + 1);
/* insert the address */
val_hi = (val_hi & 0xffff0000) | addr >> 16;
val_lo = (val_lo & 0xffff0000) | (addr & 0xffff);
/* store the two halves back into memory */
- put_unaligned(val_hi, rp);
- put_unaligned(val_lo, rp+1);
+ put_unaligned(val_hi, p);
+ put_unaligned(val_lo, p+1);
} else {
/* Put it straight in, no messing around */
- put_unaligned(addr, rp);
+ put_unaligned(addr, p);
}
+ return 0;
}
#define flat_get_relocate_addr(rel) (rel & 0x7fffffff)
#ifndef __ASM_SH_FLAT_H
#define __ASM_SH_FLAT_H
+#include <asm/unaligned.h>
+
#define flat_argvp_envp_on_stack() 0
#define flat_old_ram_flag(flags) (flags)
#define flat_reloc_valid(reloc, size) ((reloc) <= (size))
-#define flat_get_addr_from_rp(rp, relval, flags, p) get_unaligned(rp)
-#define flat_put_addr_at_rp(rp, val, relval) put_unaligned(val,rp)
+static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
+ u32 *addr, u32 *persistent)
+{
+ *addr = get_unaligned((__force u32 *)rp);
+ return 0;
+}
+static inline int flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 rel)
+{
+ put_unaligned(addr, (__force u32 *)rp);
+ return 0;
+}
#define flat_get_relocate_addr(rel) (rel)
#define flat_set_persistent(relval, p) ({ (void)p; 0; })
#ifndef __ASM_XTENSA_FLAT_H
#define __ASM_XTENSA_FLAT_H
+#include <asm/unaligned.h>
+
#define flat_argvp_envp_on_stack() 0
#define flat_old_ram_flag(flags) (flags)
#define flat_reloc_valid(reloc, size) ((reloc) <= (size))
-#define flat_get_addr_from_rp(rp, relval, flags, p) get_unaligned(rp)
-#define flat_put_addr_at_rp(rp, val, relval ) put_unaligned(val, rp)
+static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
+ u32 *addr, u32 *persistent)
+{
+ *addr = get_unaligned((__force u32 *)rp);
+ return 0;
+}
+static inline int flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 rel)
+{
+ put_unaligned(addr, (__force u32 *)rp);
+ return 0;
+}
#define flat_get_relocate_addr(rel) (rel)
#define flat_set_persistent(relval, p) 0
{
struct flat_hdr *hdr;
unsigned long textpos, datapos, realdatastart;
- unsigned long text_len, data_len, bss_len, stack_len, full_data, flags;
+ u32 text_len, data_len, bss_len, stack_len, full_data, flags;
unsigned long len, memp, memp_size, extra, rlim;
- unsigned long __user *reloc, *rp;
+ u32 __user *reloc, *rp;
struct inode *inode;
int i, rev, relocs;
loff_t fpos;
goto err;
}
- reloc = (unsigned long __user *)
+ reloc = (u32 __user *)
(datapos + (ntohl(hdr->reloc_start) - text_len));
memp = realdatastart;
memp_size = len;
} else {
- len = text_len + data_len + extra + MAX_SHARED_LIBS * sizeof(unsigned long);
+ len = text_len + data_len + extra + MAX_SHARED_LIBS * sizeof(u32);
len = PAGE_ALIGN(len);
textpos = vm_mmap(NULL, 0, len,
PROT_READ | PROT_EXEC | PROT_WRITE, MAP_PRIVATE, 0);
realdatastart = textpos + ntohl(hdr->data_start);
datapos = ALIGN(realdatastart +
- MAX_SHARED_LIBS * sizeof(unsigned long),
+ MAX_SHARED_LIBS * sizeof(u32),
FLAT_DATA_ALIGN);
- reloc = (unsigned long __user *)
+ reloc = (u32 __user *)
(datapos + (ntohl(hdr->reloc_start) - text_len));
memp = textpos;
memp_size = len;
ret = result;
pr_err("Unable to read code+data+bss, errno %d\n", ret);
vm_munmap(textpos, text_len + data_len + extra +
- MAX_SHARED_LIBS * sizeof(unsigned long));
+ MAX_SHARED_LIBS * sizeof(u32));
goto err;
}
}
* image.
*/
if (flags & FLAT_FLAG_GOTPIC) {
- for (rp = (unsigned long __user *)datapos; ; rp++) {
- unsigned long addr, rp_val;
+ for (rp = (u32 __user *)datapos; ; rp++) {
+ u32 addr, rp_val;
if (get_user(rp_val, rp))
return -EFAULT;
if (rp_val == 0xffffffff)
* __start to address 4 so that is okay).
*/
if (rev > OLD_FLAT_VERSION) {
- unsigned long __maybe_unused persistent = 0;
+ u32 __maybe_unused persistent = 0;
for (i = 0; i < relocs; i++) {
- unsigned long addr, relval;
+ u32 addr, relval;
/*
* Get the address of the pointer to be
if (flat_set_persistent(relval, &persistent))
continue;
addr = flat_get_relocate_addr(relval);
- rp = (unsigned long __user *)calc_reloc(addr, libinfo, id, 1);
- if (rp == (unsigned long __user *)RELOC_FAILED) {
+ rp = (u32 __user *)calc_reloc(addr, libinfo, id, 1);
+ if (rp == (u32 __user *)RELOC_FAILED) {
ret = -ENOEXEC;
goto err;
}
/* Get the pointer's value. */
- addr = flat_get_addr_from_rp(rp, relval, flags,
- &persistent);
+ ret = flat_get_addr_from_rp(rp, relval, flags,
+ &addr, &persistent);
+ if (unlikely(ret))
+ goto err;
+
if (addr != 0) {
/*
* Do the relocation. PIC relocs in the data section are
}
/* Write back the relocated pointer. */
- flat_put_addr_at_rp(rp, addr, relval);
+ ret = flat_put_addr_at_rp(rp, addr, relval);
+ if (unlikely(ret))
+ goto err;
}
}
} else {
for (i = 0; i < relocs; i++) {
- unsigned long relval;
+ u32 relval;
if (get_user(relval, reloc + i))
return -EFAULT;
relval = ntohl(relval);
#ifndef _LINUX_FLAT_H
#define _LINUX_FLAT_H
-#include <asm/flat.h>
#include <uapi/linux/flat.h>
+#include <asm/flat.h>
/*
* While it would be nice to keep this header clean, users of older
projects / GitHub / moto-9609 / android_kernel_motorola_exynos9610.git / commitdiff