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Diffstat (limited to 'arch/powerpc/lib/sstep.c')
-rw-r--r--arch/powerpc/lib/sstep.c82
1 files changed, 44 insertions, 38 deletions
diff --git a/arch/powerpc/lib/sstep.c b/arch/powerpc/lib/sstep.c
index 9c542ec70c5b..33117f8a0882 100644
--- a/arch/powerpc/lib/sstep.c
+++ b/arch/powerpc/lib/sstep.c
@@ -49,7 +49,8 @@ extern int do_stxvd2x(int rn, unsigned long ea);
/*
* Emulate the truncation of 64 bit values in 32-bit mode.
*/
-static unsigned long truncate_if_32bit(unsigned long msr, unsigned long val)
+static nokprobe_inline unsigned long truncate_if_32bit(unsigned long msr,
+ unsigned long val)
{
#ifdef __powerpc64__
if ((msr & MSR_64BIT) == 0)
@@ -61,7 +62,7 @@ static unsigned long truncate_if_32bit(unsigned long msr, unsigned long val)
/*
* Determine whether a conditional branch instruction would branch.
*/
-static int __kprobes branch_taken(unsigned int instr, struct pt_regs *regs)
+static nokprobe_inline int branch_taken(unsigned int instr, struct pt_regs *regs)
{
unsigned int bo = (instr >> 21) & 0x1f;
unsigned int bi;
@@ -81,8 +82,7 @@ static int __kprobes branch_taken(unsigned int instr, struct pt_regs *regs)
return 1;
}
-
-static long __kprobes address_ok(struct pt_regs *regs, unsigned long ea, int nb)
+static nokprobe_inline long address_ok(struct pt_regs *regs, unsigned long ea, int nb)
{
if (!user_mode(regs))
return 1;
@@ -92,7 +92,7 @@ static long __kprobes address_ok(struct pt_regs *regs, unsigned long ea, int nb)
/*
* Calculate effective address for a D-form instruction
*/
-static unsigned long __kprobes dform_ea(unsigned int instr, struct pt_regs *regs)
+static nokprobe_inline unsigned long dform_ea(unsigned int instr, struct pt_regs *regs)
{
int ra;
unsigned long ea;
@@ -109,7 +109,7 @@ static unsigned long __kprobes dform_ea(unsigned int instr, struct pt_regs *regs
/*
* Calculate effective address for a DS-form instruction
*/
-static unsigned long __kprobes dsform_ea(unsigned int instr, struct pt_regs *regs)
+static nokprobe_inline unsigned long dsform_ea(unsigned int instr, struct pt_regs *regs)
{
int ra;
unsigned long ea;
@@ -126,8 +126,8 @@ static unsigned long __kprobes dsform_ea(unsigned int instr, struct pt_regs *reg
/*
* Calculate effective address for an X-form instruction
*/
-static unsigned long __kprobes xform_ea(unsigned int instr,
- struct pt_regs *regs)
+static nokprobe_inline unsigned long xform_ea(unsigned int instr,
+ struct pt_regs *regs)
{
int ra, rb;
unsigned long ea;
@@ -145,33 +145,33 @@ static unsigned long __kprobes xform_ea(unsigned int instr,
* Return the largest power of 2, not greater than sizeof(unsigned long),
* such that x is a multiple of it.
*/
-static inline unsigned long max_align(unsigned long x)
+static nokprobe_inline unsigned long max_align(unsigned long x)
{
x |= sizeof(unsigned long);
return x & -x; /* isolates rightmost bit */
}
-static inline unsigned long byterev_2(unsigned long x)
+static nokprobe_inline unsigned long byterev_2(unsigned long x)
{
return ((x >> 8) & 0xff) | ((x & 0xff) << 8);
}
-static inline unsigned long byterev_4(unsigned long x)
+static nokprobe_inline unsigned long byterev_4(unsigned long x)
{
return ((x >> 24) & 0xff) | ((x >> 8) & 0xff00) |
((x & 0xff00) << 8) | ((x & 0xff) << 24);
}
#ifdef __powerpc64__
-static inline unsigned long byterev_8(unsigned long x)
+static nokprobe_inline unsigned long byterev_8(unsigned long x)
{
return (byterev_4(x) << 32) | byterev_4(x >> 32);
}
#endif
-static int __kprobes read_mem_aligned(unsigned long *dest, unsigned long ea,
- int nb)
+static nokprobe_inline int read_mem_aligned(unsigned long *dest,
+ unsigned long ea, int nb)
{
int err = 0;
unsigned long x = 0;
@@ -197,8 +197,8 @@ static int __kprobes read_mem_aligned(unsigned long *dest, unsigned long ea,
return err;
}
-static int __kprobes read_mem_unaligned(unsigned long *dest, unsigned long ea,
- int nb, struct pt_regs *regs)
+static nokprobe_inline int read_mem_unaligned(unsigned long *dest,
+ unsigned long ea, int nb, struct pt_regs *regs)
{
int err;
unsigned long x, b, c;
@@ -248,7 +248,7 @@ static int __kprobes read_mem_unaligned(unsigned long *dest, unsigned long ea,
* Read memory at address ea for nb bytes, return 0 for success
* or -EFAULT if an error occurred.
*/
-static int __kprobes read_mem(unsigned long *dest, unsigned long ea, int nb,
+static int read_mem(unsigned long *dest, unsigned long ea, int nb,
struct pt_regs *regs)
{
if (!address_ok(regs, ea, nb))
@@ -257,9 +257,10 @@ static int __kprobes read_mem(unsigned long *dest, unsigned long ea, int nb,
return read_mem_aligned(dest, ea, nb);
return read_mem_unaligned(dest, ea, nb, regs);
}
+NOKPROBE_SYMBOL(read_mem);
-static int __kprobes write_mem_aligned(unsigned long val, unsigned long ea,
- int nb)
+static nokprobe_inline int write_mem_aligned(unsigned long val,
+ unsigned long ea, int nb)
{
int err = 0;
@@ -282,8 +283,8 @@ static int __kprobes write_mem_aligned(unsigned long val, unsigned long ea,
return err;
}
-static int __kprobes write_mem_unaligned(unsigned long val, unsigned long ea,
- int nb, struct pt_regs *regs)
+static nokprobe_inline int write_mem_unaligned(unsigned long val,
+ unsigned long ea, int nb, struct pt_regs *regs)
{
int err;
unsigned long c;
@@ -325,7 +326,7 @@ static int __kprobes write_mem_unaligned(unsigned long val, unsigned long ea,
* Write memory at address ea for nb bytes, return 0 for success
* or -EFAULT if an error occurred.
*/
-static int __kprobes write_mem(unsigned long val, unsigned long ea, int nb,
+static int write_mem(unsigned long val, unsigned long ea, int nb,
struct pt_regs *regs)
{
if (!address_ok(regs, ea, nb))
@@ -334,13 +335,14 @@ static int __kprobes write_mem(unsigned long val, unsigned long ea, int nb,
return write_mem_aligned(val, ea, nb);
return write_mem_unaligned(val, ea, nb, regs);
}
+NOKPROBE_SYMBOL(write_mem);
#ifdef CONFIG_PPC_FPU
/*
* Check the address and alignment, and call func to do the actual
* load or store.
*/
-static int __kprobes do_fp_load(int rn, int (*func)(int, unsigned long),
+static int do_fp_load(int rn, int (*func)(int, unsigned long),
unsigned long ea, int nb,
struct pt_regs *regs)
{
@@ -380,8 +382,9 @@ static int __kprobes do_fp_load(int rn, int (*func)(int, unsigned long),
return err;
return (*func)(rn, ptr);
}
+NOKPROBE_SYMBOL(do_fp_load);
-static int __kprobes do_fp_store(int rn, int (*func)(int, unsigned long),
+static int do_fp_store(int rn, int (*func)(int, unsigned long),
unsigned long ea, int nb,
struct pt_regs *regs)
{
@@ -425,11 +428,12 @@ static int __kprobes do_fp_store(int rn, int (*func)(int, unsigned long),
}
return err;
}
+NOKPROBE_SYMBOL(do_fp_store);
#endif
#ifdef CONFIG_ALTIVEC
/* For Altivec/VMX, no need to worry about alignment */
-static int __kprobes do_vec_load(int rn, int (*func)(int, unsigned long),
+static nokprobe_inline int do_vec_load(int rn, int (*func)(int, unsigned long),
unsigned long ea, struct pt_regs *regs)
{
if (!address_ok(regs, ea & ~0xfUL, 16))
@@ -437,7 +441,7 @@ static int __kprobes do_vec_load(int rn, int (*func)(int, unsigned long),
return (*func)(rn, ea);
}
-static int __kprobes do_vec_store(int rn, int (*func)(int, unsigned long),
+static nokprobe_inline int do_vec_store(int rn, int (*func)(int, unsigned long),
unsigned long ea, struct pt_regs *regs)
{
if (!address_ok(regs, ea & ~0xfUL, 16))
@@ -447,7 +451,7 @@ static int __kprobes do_vec_store(int rn, int (*func)(int, unsigned long),
#endif /* CONFIG_ALTIVEC */
#ifdef CONFIG_VSX
-static int __kprobes do_vsx_load(int rn, int (*func)(int, unsigned long),
+static nokprobe_inline int do_vsx_load(int rn, int (*func)(int, unsigned long),
unsigned long ea, struct pt_regs *regs)
{
int err;
@@ -465,7 +469,7 @@ static int __kprobes do_vsx_load(int rn, int (*func)(int, unsigned long),
return err;
}
-static int __kprobes do_vsx_store(int rn, int (*func)(int, unsigned long),
+static nokprobe_inline int do_vsx_store(int rn, int (*func)(int, unsigned long),
unsigned long ea, struct pt_regs *regs)
{
int err;
@@ -522,7 +526,7 @@ static int __kprobes do_vsx_store(int rn, int (*func)(int, unsigned long),
: "=r" (err) \
: "r" (addr), "i" (-EFAULT), "0" (err))
-static void __kprobes set_cr0(struct pt_regs *regs, int rd)
+static nokprobe_inline void set_cr0(struct pt_regs *regs, int rd)
{
long val = regs->gpr[rd];
@@ -539,7 +543,7 @@ static void __kprobes set_cr0(struct pt_regs *regs, int rd)
regs->ccr |= 0x20000000;
}
-static void __kprobes add_with_carry(struct pt_regs *regs, int rd,
+static nokprobe_inline void add_with_carry(struct pt_regs *regs, int rd,
unsigned long val1, unsigned long val2,
unsigned long carry_in)
{
@@ -560,7 +564,7 @@ static void __kprobes add_with_carry(struct pt_regs *regs, int rd,
regs->xer &= ~XER_CA;
}
-static void __kprobes do_cmp_signed(struct pt_regs *regs, long v1, long v2,
+static nokprobe_inline void do_cmp_signed(struct pt_regs *regs, long v1, long v2,
int crfld)
{
unsigned int crval, shift;
@@ -576,7 +580,7 @@ static void __kprobes do_cmp_signed(struct pt_regs *regs, long v1, long v2,
regs->ccr = (regs->ccr & ~(0xf << shift)) | (crval << shift);
}
-static void __kprobes do_cmp_unsigned(struct pt_regs *regs, unsigned long v1,
+static nokprobe_inline void do_cmp_unsigned(struct pt_regs *regs, unsigned long v1,
unsigned long v2, int crfld)
{
unsigned int crval, shift;
@@ -592,7 +596,7 @@ static void __kprobes do_cmp_unsigned(struct pt_regs *regs, unsigned long v1,
regs->ccr = (regs->ccr & ~(0xf << shift)) | (crval << shift);
}
-static int __kprobes trap_compare(long v1, long v2)
+static nokprobe_inline int trap_compare(long v1, long v2)
{
int ret = 0;
@@ -631,7 +635,7 @@ static int __kprobes trap_compare(long v1, long v2)
* Returns 1 if the instruction has been executed, or 0 if not.
* Sets *op to indicate what the instruction does.
*/
-int __kprobes analyse_instr(struct instruction_op *op, struct pt_regs *regs,
+int analyse_instr(struct instruction_op *op, struct pt_regs *regs,
unsigned int instr)
{
unsigned int opcode, ra, rb, rd, spr, u;
@@ -1692,6 +1696,7 @@ int __kprobes analyse_instr(struct instruction_op *op, struct pt_regs *regs,
#endif
}
EXPORT_SYMBOL_GPL(analyse_instr);
+NOKPROBE_SYMBOL(analyse_instr);
/*
* For PPC32 we always use stwu with r1 to change the stack pointer.
@@ -1701,7 +1706,7 @@ EXPORT_SYMBOL_GPL(analyse_instr);
* don't emulate the real store operation. We will do real store
* operation safely in exception return code by checking this flag.
*/
-static __kprobes int handle_stack_update(unsigned long ea, struct pt_regs *regs)
+static nokprobe_inline int handle_stack_update(unsigned long ea, struct pt_regs *regs)
{
#ifdef CONFIG_PPC32
/*
@@ -1721,7 +1726,7 @@ static __kprobes int handle_stack_update(unsigned long ea, struct pt_regs *regs)
return 0;
}
-static __kprobes void do_signext(unsigned long *valp, int size)
+static nokprobe_inline void do_signext(unsigned long *valp, int size)
{
switch (size) {
case 2:
@@ -1733,7 +1738,7 @@ static __kprobes void do_signext(unsigned long *valp, int size)
}
}
-static __kprobes void do_byterev(unsigned long *valp, int size)
+static nokprobe_inline void do_byterev(unsigned long *valp, int size)
{
switch (size) {
case 2:
@@ -1757,7 +1762,7 @@ static __kprobes void do_byterev(unsigned long *valp, int size)
* or -1 if the instruction is one that should not be stepped,
* such as an rfid, or a mtmsrd that would clear MSR_RI.
*/
-int __kprobes emulate_step(struct pt_regs *regs, unsigned int instr)
+int emulate_step(struct pt_regs *regs, unsigned int instr)
{
struct instruction_op op;
int r, err, size;
@@ -1988,3 +1993,4 @@ int __kprobes emulate_step(struct pt_regs *regs, unsigned int instr)
regs->nip = truncate_if_32bit(regs->msr, regs->nip + 4);
return 1;
}
+NOKPROBE_SYMBOL(emulate_step);