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-rw-r--r--arch/tile/include/asm/compat.h62
-rw-r--r--arch/tile/include/uapi/asm/siginfo.h8
-rw-r--r--arch/tile/kernel/compat_signal.c73
-rw-r--r--arch/tile/kernel/single_step.c24
-rw-r--r--arch/tile/kernel/traps.c4
-rw-r--r--arch/tile/kernel/unaligned.c46
6 files changed, 43 insertions, 174 deletions
diff --git a/arch/tile/include/asm/compat.h b/arch/tile/include/asm/compat.h
index 62a7b83025dd..769ff6ac0bf5 100644
--- a/arch/tile/include/asm/compat.h
+++ b/arch/tile/include/asm/compat.h
@@ -110,68 +110,6 @@ struct compat_flock64 {
typedef u32 compat_sigset_word;
-typedef union compat_sigval {
- compat_int_t sival_int;
- compat_uptr_t sival_ptr;
-} compat_sigval_t;
-
-#define COMPAT_SI_PAD_SIZE (128/sizeof(int) - 3)
-
-typedef struct compat_siginfo {
- int si_signo;
- int si_errno;
- int si_code;
-
- union {
- int _pad[COMPAT_SI_PAD_SIZE];
-
- /* kill() */
- struct {
- unsigned int _pid; /* sender's pid */
- unsigned int _uid; /* sender's uid */
- } _kill;
-
- /* POSIX.1b timers */
- struct {
- compat_timer_t _tid; /* timer id */
- int _overrun; /* overrun count */
- compat_sigval_t _sigval; /* same as below */
- int _sys_private; /* not to be passed to user */
- int _overrun_incr; /* amount to add to overrun */
- } _timer;
-
- /* POSIX.1b signals */
- struct {
- unsigned int _pid; /* sender's pid */
- unsigned int _uid; /* sender's uid */
- compat_sigval_t _sigval;
- } _rt;
-
- /* SIGCHLD */
- struct {
- unsigned int _pid; /* which child */
- unsigned int _uid; /* sender's uid */
- int _status; /* exit code */
- compat_clock_t _utime;
- compat_clock_t _stime;
- } _sigchld;
-
- /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
- struct {
- unsigned int _addr; /* faulting insn/memory ref. */
-#ifdef __ARCH_SI_TRAPNO
- int _trapno; /* TRAP # which caused the signal */
-#endif
- } _sigfault;
-
- /* SIGPOLL */
- struct {
- int _band; /* POLL_IN, POLL_OUT, POLL_MSG */
- int _fd;
- } _sigpoll;
- } _sifields;
-} compat_siginfo_t;
-
#define COMPAT_OFF_T_MAX 0x7fffffff
struct compat_ipc64_perm {
diff --git a/arch/tile/include/uapi/asm/siginfo.h b/arch/tile/include/uapi/asm/siginfo.h
index f234d24fff55..a812fcbf4267 100644
--- a/arch/tile/include/uapi/asm/siginfo.h
+++ b/arch/tile/include/uapi/asm/siginfo.h
@@ -24,12 +24,4 @@
#include <asm-generic/siginfo.h>
-/*
- * Additional Tile-specific SIGILL si_codes
- */
-#define ILL_DBLFLT 9 /* double fault */
-#define ILL_HARDWALL 10 /* user networks hardwall violation */
-#undef NSIGILL
-#define NSIGILL 10
-
#endif /* _ASM_TILE_SIGINFO_H */
diff --git a/arch/tile/kernel/compat_signal.c b/arch/tile/kernel/compat_signal.c
index 971d87a1d8cf..a703bd0e0488 100644
--- a/arch/tile/kernel/compat_signal.c
+++ b/arch/tile/kernel/compat_signal.c
@@ -50,79 +50,6 @@ struct compat_rt_sigframe {
struct compat_ucontext uc;
};
-int copy_siginfo_to_user32(struct compat_siginfo __user *to, const siginfo_t *from)
-{
- int err;
-
- if (!access_ok(VERIFY_WRITE, to, sizeof(struct compat_siginfo)))
- return -EFAULT;
-
- /* If you change siginfo_t structure, please make sure that
- this code is fixed accordingly.
- It should never copy any pad contained in the structure
- to avoid security leaks, but must copy the generic
- 3 ints plus the relevant union member. */
- err = __put_user(from->si_signo, &to->si_signo);
- err |= __put_user(from->si_errno, &to->si_errno);
- err |= __put_user(from->si_code, &to->si_code);
-
- if (from->si_code < 0) {
- err |= __put_user(from->si_pid, &to->si_pid);
- err |= __put_user(from->si_uid, &to->si_uid);
- err |= __put_user(from->si_int, &to->si_int);
- } else {
- /*
- * First 32bits of unions are always present:
- * si_pid === si_band === si_tid === si_addr(LS half)
- */
- err |= __put_user(from->_sifields._pad[0],
- &to->_sifields._pad[0]);
- switch (siginfo_layout(from->si_signo, from->si_code)) {
- case SIL_FAULT:
- break;
- case SIL_CHLD:
- err |= __put_user(from->si_utime, &to->si_utime);
- err |= __put_user(from->si_stime, &to->si_stime);
- err |= __put_user(from->si_status, &to->si_status);
- /* FALL THROUGH */
- default:
- case SIL_KILL:
- err |= __put_user(from->si_uid, &to->si_uid);
- break;
- case SIL_POLL:
- err |= __put_user(from->si_fd, &to->si_fd);
- break;
- case SIL_TIMER:
- err |= __put_user(from->si_overrun, &to->si_overrun);
- err |= __put_user(from->si_int, &to->si_int);
- break;
- case SIL_RT:
- err |= __put_user(from->si_uid, &to->si_uid);
- err |= __put_user(from->si_int, &to->si_int);
- break;
- }
- }
- return err;
-}
-
-int copy_siginfo_from_user32(siginfo_t *to, struct compat_siginfo __user *from)
-{
- int err;
-
- if (!access_ok(VERIFY_READ, from, sizeof(struct compat_siginfo)))
- return -EFAULT;
-
- err = __get_user(to->si_signo, &from->si_signo);
- err |= __get_user(to->si_errno, &from->si_errno);
- err |= __get_user(to->si_code, &from->si_code);
-
- err |= __get_user(to->si_pid, &from->si_pid);
- err |= __get_user(to->si_uid, &from->si_uid);
- err |= __get_user(to->si_int, &from->si_int);
-
- return err;
-}
-
/* The assembly shim for this function arranges to ignore the return value. */
long compat_sys_rt_sigreturn(void)
{
diff --git a/arch/tile/kernel/single_step.c b/arch/tile/kernel/single_step.c
index de3eae813e52..479d8033a801 100644
--- a/arch/tile/kernel/single_step.c
+++ b/arch/tile/kernel/single_step.c
@@ -163,11 +163,13 @@ static tilepro_bundle_bits rewrite_load_store_unaligned(
* actual bad address in an SPR, which it doesn't.
*/
if (align_ctl == 0) {
- siginfo_t info = {
- .si_signo = SIGBUS,
- .si_code = BUS_ADRALN,
- .si_addr = addr
- };
+ siginfo_t info;
+
+ clear_siginfo(&info);
+ info.si_signo = SIGBUS;
+ info.si_code = BUS_ADRALN;
+ info.si_addr = addr;
+
trace_unhandled_signal("unaligned trap", regs,
(unsigned long)addr, SIGBUS);
force_sig_info(info.si_signo, &info, current);
@@ -210,11 +212,13 @@ static tilepro_bundle_bits rewrite_load_store_unaligned(
}
if (err) {
- siginfo_t info = {
- .si_signo = SIGBUS,
- .si_code = BUS_ADRALN,
- .si_addr = addr
- };
+ siginfo_t info;
+
+ clear_siginfo(&info);
+ info.si_signo = SIGBUS;
+ info.si_code = BUS_ADRALN;
+ info.si_addr = addr;
+
trace_unhandled_signal("bad address for unaligned fixup", regs,
(unsigned long)addr, SIGBUS);
force_sig_info(info.si_signo, &info, current);
diff --git a/arch/tile/kernel/traps.c b/arch/tile/kernel/traps.c
index 9b08c6055f15..83a7186198d7 100644
--- a/arch/tile/kernel/traps.c
+++ b/arch/tile/kernel/traps.c
@@ -256,12 +256,14 @@ static int do_bpt(struct pt_regs *regs)
void __kprobes do_trap(struct pt_regs *regs, int fault_num,
unsigned long reason)
{
- siginfo_t info = { 0 };
+ siginfo_t info;
int signo, code;
unsigned long address = 0;
tile_bundle_bits instr;
int is_kernel = !user_mode(regs);
+ clear_siginfo(&info);
+
/* Handle breakpoints, etc. */
if (is_kernel && fault_num == INT_ILL && do_bpt(regs))
return;
diff --git a/arch/tile/kernel/unaligned.c b/arch/tile/kernel/unaligned.c
index 8149c38f67b6..77a0b6b6a2a1 100644
--- a/arch/tile/kernel/unaligned.c
+++ b/arch/tile/kernel/unaligned.c
@@ -980,11 +980,13 @@ void jit_bundle_gen(struct pt_regs *regs, tilegx_bundle_bits bundle,
}
if ((align_ctl == 0) || unexpected) {
- siginfo_t info = {
- .si_signo = SIGBUS,
- .si_code = BUS_ADRALN,
- .si_addr = (unsigned char __user *)0
- };
+ siginfo_t info;
+
+ clear_siginfo(&info);
+ info.si_signo = SIGBUS;
+ info.si_code = BUS_ADRALN;
+ info.si_addr = (unsigned char __user *)0;
+
if (unaligned_printk)
pr_info("Unalign bundle: unexp @%llx, %llx\n",
(unsigned long long)regs->pc,
@@ -1396,11 +1398,12 @@ void jit_bundle_gen(struct pt_regs *regs, tilegx_bundle_bits bundle,
&frag, sizeof(frag));
if (status) {
/* Fail to copy JIT into user land. send SIGSEGV. */
- siginfo_t info = {
- .si_signo = SIGSEGV,
- .si_code = SEGV_MAPERR,
- .si_addr = (void __user *)&jit_code_area[idx]
- };
+ siginfo_t info;
+
+ clear_siginfo(&info);
+ info.si_signo = SIGSEGV;
+ info.si_code = SEGV_MAPERR;
+ info.si_addr = (void __user *)&jit_code_area[idx];
pr_warn("Unalign fixup: pid=%d %s jit_code_area=%llx\n",
current->pid, current->comm,
@@ -1511,11 +1514,12 @@ void do_unaligned(struct pt_regs *regs, int vecnum)
* If so, we will trigger SIGBUS.
*/
if ((regs->sp & 0x7) || (regs->ex1) || (align_ctl < 0)) {
- siginfo_t info = {
- .si_signo = SIGBUS,
- .si_code = BUS_ADRALN,
- .si_addr = (unsigned char __user *)0
- };
+ siginfo_t info;
+
+ clear_siginfo(&info);
+ info.si_signo = SIGBUS;
+ info.si_code = BUS_ADRALN;
+ info.si_addr = (unsigned char __user *)0;
if (unaligned_printk)
pr_info("Unalign fixup: %d %llx @%llx\n",
@@ -1535,11 +1539,13 @@ void do_unaligned(struct pt_regs *regs, int vecnum)
pc = (tilegx_bundle_bits __user *)(regs->pc);
if (get_user(bundle, pc) != 0) {
/* Probably never be here since pc is valid user address.*/
- siginfo_t info = {
- .si_signo = SIGSEGV,
- .si_code = SEGV_MAPERR,
- .si_addr = (void __user *)pc
- };
+ siginfo_t info;
+
+ clear_siginfo(&info);
+ info.si_signo = SIGSEGV;
+ info.si_code = SEGV_MAPERR;
+ info.si_addr = (void __user *)pc;
+
pr_err("Couldn't read instruction at %p trying to step\n", pc);
trace_unhandled_signal("segfault in unalign fixup", regs,
(unsigned long)info.si_addr, SIGSEGV);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-07 18:53:48 +0000