Fedora kernel-2.6.17-1.2142_FC4 patched with stable patch-2.6.17.4-vs2.0.2-rc26.diff

[linux-2.6.git] / arch / alpha / kernel / traps.c

diff --git a/arch/alpha/kernel/traps.c b/arch/alpha/kernel/traps.c
index 5234879..f9d1231 100644 (file)
--- a/arch/alpha/kernel/traps.c
+++ b/arch/alpha/kernel/traps.c
@@ -16,6 +16,7 @@
 #include <linux/smp_lock.h>
 #include <linux/module.h>
 #include <linux/init.h>
+#include <linux/kallsyms.h>
 
 #include <asm/gentrap.h>
 #include <asm/uaccess.h>
@@ -64,6 +65,8 @@ dik_show_regs(struct pt_regs *regs, unsigned long *r9_15)
 {
        printk("pc = [<%016lx>]  ra = [<%016lx>]  ps = %04lx    %s\n",
               regs->pc, regs->r26, regs->ps, print_tainted());
+       print_symbol("pc is at %s\n", regs->pc);
+       print_symbol("ra is at %s\n", regs->r26 );
        printk("v0 = %016lx  t0 = %016lx  t1 = %016lx\n",
               regs->r0, regs->r1, regs->r2);
        printk("t2 = %016lx  t3 = %016lx  t4 = %016lx\n",
@@ -108,7 +111,7 @@ dik_show_code(unsigned int *pc)
        printk("Code:");
        for (i = -6; i < 2; i++) {
                unsigned int insn;
-               if (__get_user(insn, pc+i))
+               if (__get_user(insn, (unsigned int __user *)pc + i))
                        break;
                printk("%c%08x%c", i ? ' ' : '<', insn, i ? ' ' : '>');
        }
@@ -119,7 +122,7 @@ static void
 dik_show_trace(unsigned long *sp)
 {
        long i = 0;
-       printk("Trace:");
+       printk("Trace:\n");
        while (0x1ff8 & (unsigned long) sp) {
                extern char _stext[], _etext[];
                unsigned long tmp = *sp;
@@ -128,7 +131,9 @@ dik_show_trace(unsigned long *sp)
                        continue;
                if (tmp >= (unsigned long) &_etext)
                        continue;
-               printk("%lx%c", tmp, ' ');
+               printk("[<%lx>]", tmp);
+               print_symbol(" %s", tmp);
+               printk("\n");
                if (i > 40) {
                        printk(" ...");
                        break;
@@ -220,12 +225,12 @@ do_entArith(unsigned long summary, unsigned long write_mask,
                if (si_code == 0)
                        return;
        }
-       die_if_kernel("Arithmetic fault", regs, 0, 0);
+       die_if_kernel("Arithmetic fault", regs, 0, NULL);
 
        info.si_signo = SIGFPE;
        info.si_errno = 0;
        info.si_code = si_code;
-       info.si_addr = (void *) regs->pc;
+       info.si_addr = (void __user *) regs->pc;
        send_sig_info(SIGFPE, &info, current);
 }
 
@@ -235,7 +240,7 @@ do_entIF(unsigned long type, struct pt_regs *regs)
        siginfo_t info;
        int signo, code;
 
-       if (regs->ps == 0) {
+       if ((regs->ps & ~IPL_MAX) == 0) {
                if (type == 1) {
                        const unsigned int *data
                          = (const unsigned int *) regs->pc;
@@ -244,7 +249,7 @@ do_entIF(unsigned long type, struct pt_regs *regs)
                               data[0]);
                }
                die_if_kernel((type == 1 ? "Kernel Bug" : "Instruction fault"),
-                             regs, type, 0);
+                             regs, type, NULL);
        }
 
        switch (type) {
@@ -253,7 +258,7 @@ do_entIF(unsigned long type, struct pt_regs *regs)
                info.si_errno = 0;
                info.si_code = TRAP_BRKPT;
                info.si_trapno = 0;
-               info.si_addr = (void *) regs->pc;
+               info.si_addr = (void __user *) regs->pc;
 
                if (ptrace_cancel_bpt(current)) {
                        regs->pc -= 4;  /* make pc point to former bpt */
@@ -266,13 +271,13 @@ do_entIF(unsigned long type, struct pt_regs *regs)
                info.si_signo = SIGTRAP;
                info.si_errno = 0;
                info.si_code = __SI_FAULT;
-               info.si_addr = (void *) regs->pc;
+               info.si_addr = (void __user *) regs->pc;
                info.si_trapno = 0;
                send_sig_info(SIGTRAP, &info, current);
                return;
                
              case 2: /* gentrap */
-               info.si_addr = (void *) regs->pc;
+               info.si_addr = (void __user *) regs->pc;
                info.si_trapno = regs->r16;
                switch ((long) regs->r16) {
                case GEN_INTOVF:
@@ -334,7 +339,7 @@ do_entIF(unsigned long type, struct pt_regs *regs)
                info.si_signo = signo;
                info.si_errno = 0;
                info.si_code = code;
-               info.si_addr = (void *) regs->pc;
+               info.si_addr = (void __user *) regs->pc;
                send_sig_info(signo, &info, current);
                return;
 
@@ -362,7 +367,7 @@ do_entIF(unsigned long type, struct pt_regs *regs)
                                info.si_signo = SIGFPE;
                                info.si_errno = 0;
                                info.si_code = si_code;
-                               info.si_addr = (void *) regs->pc;
+                               info.si_addr = (void __user *) regs->pc;
                                send_sig_info(SIGFPE, &info, current);
                                return;
                        }
@@ -391,7 +396,7 @@ do_entIF(unsigned long type, struct pt_regs *regs)
        info.si_signo = SIGILL;
        info.si_errno = 0;
        info.si_code = ILL_ILLOPC;
-       info.si_addr = (void *) regs->pc;
+       info.si_addr = (void __user *) regs->pc;
        send_sig_info(SIGILL, &info, current);
 }
 
@@ -407,12 +412,12 @@ do_entDbg(struct pt_regs *regs)
 {
        siginfo_t info;
 
-       die_if_kernel("Instruction fault", regs, 0, 0);
+       die_if_kernel("Instruction fault", regs, 0, NULL);
 
        info.si_signo = SIGILL;
        info.si_errno = 0;
        info.si_code = ILL_ILLOPC;
-       info.si_addr = (void *) regs->pc;
+       info.si_addr = (void __user *) regs->pc;
        force_sig_info(SIGILL, &info, current);
 }
 
@@ -441,16 +446,15 @@ struct unaligned_stat {
 
 
 /* Macro for exception fixup code to access integer registers.  */
-#define una_reg(r)  (regs.regs[(r) >= 16 && (r) <= 18 ? (r)+19 : (r)])
+#define una_reg(r)  (regs->regs[(r) >= 16 && (r) <= 18 ? (r)+19 : (r)])
 
 
 asmlinkage void
 do_entUna(void * va, unsigned long opcode, unsigned long reg,
-         unsigned long a3, unsigned long a4, unsigned long a5,
-         struct allregs regs)
+         struct allregs *regs)
 {
        long error, tmp1, tmp2, tmp3, tmp4;
-       unsigned long pc = regs.pc - 4;
+       unsigned long pc = regs->pc - 4;
        const struct exception_table_entry *fixup;
 
        unaligned[0].count++;
@@ -631,7 +635,7 @@ got_exception:
                printk("Forwarding unaligned exception at %lx (%lx)\n",
                       pc, newpc);
 
-               (&regs)->pc = newpc;
+               regs->pc = newpc;
                return;
        }
 
@@ -645,7 +649,7 @@ got_exception:
               current->comm, current->pid);
 
        printk("pc = [<%016lx>]  ra = [<%016lx>]  ps = %04lx\n",
-              pc, una_reg(26), regs.ps);
+              pc, una_reg(26), regs->ps);
        printk("r0 = %016lx  r1 = %016lx  r2 = %016lx\n",
               una_reg(0), una_reg(1), una_reg(2));
        printk("r3 = %016lx  r4 = %016lx  r5 = %016lx\n",
@@ -665,10 +669,10 @@ got_exception:
               una_reg(22), una_reg(23), una_reg(24));
        printk("r25= %016lx  r27= %016lx  r28= %016lx\n",
               una_reg(25), una_reg(27), una_reg(28));
-       printk("gp = %016lx  sp = %p\n", regs.gp, &regs+1);
+       printk("gp = %016lx  sp = %p\n", regs->gp, regs+1);
 
        dik_show_code((unsigned int *)pc);
-       dik_show_trace((unsigned long *)(&regs+1));
+       dik_show_trace((unsigned long *)(regs+1));
 
        if (test_and_set_thread_flag (TIF_DIE_IF_KERNEL)) {
                printk("die_if_kernel recursion detected.\n");
@@ -762,7 +766,7 @@ static int unauser_reg_offsets[32] = {
 #undef R
 
 asmlinkage void
-do_entUnaUser(void * va, unsigned long opcode,
+do_entUnaUser(void __user * va, unsigned long opcode,
              unsigned long reg, struct pt_regs *regs)
 {
        static int cnt = 0;