Skip to content

L
linux
Commit ab7c828b authored by Linus Torvalds's avatar Linus Torvalds
Browse files
Options

Merge bk://are.twiddle.net/axp-2.5 

into home.transmeta.com:/home/torvalds/v2.5/linux
parents 6c94e37b 4964368c
Show whitespace changes
Inline Side-by-side
Showing with 87 additions and 97 deletions
arch/alpha/kernel/asm-offsets.c
View file @ ab7c828b
......@@ -31,6 +31,7 @@ void foo(void)
DEFINE(TASK_TGID, offsetof(struct task_struct, tgid));
BLANK();
DEFINE(SIZEOF_PT_REGS, sizeof(struct pt_regs));
DEFINE(PT_PTRACED, PT_PTRACED);
DEFINE(CLONE_VM, CLONE_VM);
DEFINE(CLONE_UNTRACED, CLONE_UNTRACED);
......
arch/alpha/kernel/head.S
View file @ ab7c828b
......@@ -9,6 +9,7 @@
#include <linux/config.h>
#include <asm/system.h>
#include <asm/asm_offsets.h>
.globl swapper_pg_dir
.globl _stext
......@@ -25,7 +26,7 @@ __start:
/* We need to get current_task_info loaded up... */
lda $8,init_thread_union
/* ... and find our stack ... */
lda $30,0x4000($8)
lda $30,0x4000 - SIZEOF_PT_REGS($8)
/* ... and then we can start the kernel. */
jsr $26,start_kernel
call_pal PAL_halt
......
arch/alpha/kernel/systbls.S
View file @ ab7c828b
......@@ -442,6 +442,7 @@ sys_call_table:
.quad sys_clock_gettime /* 420 */
.quad sys_clock_getres
.quad sys_clock_nanosleep
.quad sys_semtimedop
.size sys_call_table, . - sys_call_table
.type sys_call_table, @object
......
arch/alpha/kernel/traps.c
View file @ ab7c828b
......@@ -485,9 +485,9 @@ do_entUna(void * va, unsigned long opcode, unsigned long reg,
" extwh %2,%3,%2\n"
"3:\n"
".section __ex_table,\"a\"\n"
" .gprel32 1b\n"
" .long 1b - .\n"
" lda %1,3b-1b(%0)\n"
" .gprel32 2b\n"
" .long 2b - .\n"
" lda %2,3b-2b(%0)\n"
".previous"
: "=r"(error), "=&r"(tmp1), "=&r"(tmp2)
......@@ -505,9 +505,9 @@ do_entUna(void * va, unsigned long opcode, unsigned long reg,
" extlh %2,%3,%2\n"
"3:\n"
".section __ex_table,\"a\"\n"
" .gprel32 1b\n"
" .long 1b - .\n"
" lda %1,3b-1b(%0)\n"
" .gprel32 2b\n"
" .long 2b - .\n"
" lda %2,3b-2b(%0)\n"
".previous"
: "=r"(error), "=&r"(tmp1), "=&r"(tmp2)
......@@ -525,9 +525,9 @@ do_entUna(void * va, unsigned long opcode, unsigned long reg,
" extqh %2,%3,%2\n"
"3:\n"
".section __ex_table,\"a\"\n"
" .gprel32 1b\n"
" .long 1b - .\n"
" lda %1,3b-1b(%0)\n"
" .gprel32 2b\n"
" .long 2b - .\n"
" lda %2,3b-2b(%0)\n"
".previous"
: "=r"(error), "=&r"(tmp1), "=&r"(tmp2)
......@@ -554,13 +554,13 @@ do_entUna(void * va, unsigned long opcode, unsigned long reg,
"4: stq_u %1,0(%5)\n"
"5:\n"
".section __ex_table,\"a\"\n"
" .gprel32 1b\n"
" .long 1b - .\n"
" lda %2,5b-1b(%0)\n"
" .gprel32 2b\n"
" .long 2b - .\n"
" lda %1,5b-2b(%0)\n"
" .gprel32 3b\n"
" .long 3b - .\n"
" lda $31,5b-3b(%0)\n"
" .gprel32 4b\n"
" .long 4b - .\n"
" lda $31,5b-4b(%0)\n"
".previous"
: "=r"(error), "=&r"(tmp1), "=&r"(tmp2),
......@@ -584,13 +584,13 @@ do_entUna(void * va, unsigned long opcode, unsigned long reg,
"4: stq_u %1,0(%5)\n"
"5:\n"
".section __ex_table,\"a\"\n"
" .gprel32 1b\n"
" .long 1b - .\n"
" lda %2,5b-1b(%0)\n"
" .gprel32 2b\n"
" .long 2b - .\n"
" lda %1,5b-2b(%0)\n"
" .gprel32 3b\n"
" .long 3b - .\n"
" lda $31,5b-3b(%0)\n"
" .gprel32 4b\n"
" .long 4b - .\n"
" lda $31,5b-4b(%0)\n"
".previous"
: "=r"(error), "=&r"(tmp1), "=&r"(tmp2),
......@@ -614,13 +614,13 @@ do_entUna(void * va, unsigned long opcode, unsigned long reg,
"4: stq_u %1,0(%5)\n"
"5:\n"
".section __ex_table,\"a\"\n\t"
" .gprel32 1b\n"
" .long 1b - .\n"
" lda %2,5b-1b(%0)\n"
" .gprel32 2b\n"
" .long 2b - .\n"
" lda %1,5b-2b(%0)\n"
" .gprel32 3b\n"
" .long 3b - .\n"
" lda $31,5b-3b(%0)\n"
" .gprel32 4b\n"
" .long 4b - .\n"
" lda $31,5b-4b(%0)\n"
".previous"
: "=r"(error), "=&r"(tmp1), "=&r"(tmp2),
......@@ -845,9 +845,9 @@ do_entUnaUser(void * va, unsigned long opcode,
" extwh %2,%3,%2\n"
"3:\n"
".section __ex_table,\"a\"\n"
" .gprel32 1b\n"
" .long 1b - .\n"
" lda %1,3b-1b(%0)\n"
" .gprel32 2b\n"
" .long 2b - .\n"
" lda %2,3b-2b(%0)\n"
".previous"
: "=r"(error), "=&r"(tmp1), "=&r"(tmp2)
......@@ -865,9 +865,9 @@ do_entUnaUser(void * va, unsigned long opcode,
" extlh %2,%3,%2\n"
"3:\n"
".section __ex_table,\"a\"\n"
" .gprel32 1b\n"
" .long 1b - .\n"
" lda %1,3b-1b(%0)\n"
" .gprel32 2b\n"
" .long 2b - .\n"
" lda %2,3b-2b(%0)\n"
".previous"
: "=r"(error), "=&r"(tmp1), "=&r"(tmp2)
......@@ -885,9 +885,9 @@ do_entUnaUser(void * va, unsigned long opcode,
" extqh %2,%3,%2\n"
"3:\n"
".section __ex_table,\"a\"\n"
" .gprel32 1b\n"
" .long 1b - .\n"
" lda %1,3b-1b(%0)\n"
" .gprel32 2b\n"
" .long 2b - .\n"
" lda %2,3b-2b(%0)\n"
".previous"
: "=r"(error), "=&r"(tmp1), "=&r"(tmp2)
......@@ -905,9 +905,9 @@ do_entUnaUser(void * va, unsigned long opcode,
" extlh %2,%3,%2\n"
"3:\n"
".section __ex_table,\"a\"\n"
" .gprel32 1b\n"
" .long 1b - .\n"
" lda %1,3b-1b(%0)\n"
" .gprel32 2b\n"
" .long 2b - .\n"
" lda %2,3b-2b(%0)\n"
".previous"
: "=r"(error), "=&r"(tmp1), "=&r"(tmp2)
......@@ -925,9 +925,9 @@ do_entUnaUser(void * va, unsigned long opcode,
" extqh %2,%3,%2\n"
"3:\n"
".section __ex_table,\"a\"\n"
" .gprel32 1b\n"
" .long 1b - .\n"
" lda %1,3b-1b(%0)\n"
" .gprel32 2b\n"
" .long 2b - .\n"
" lda %2,3b-2b(%0)\n"
".previous"
: "=r"(error), "=&r"(tmp1), "=&r"(tmp2)
......@@ -954,13 +954,13 @@ do_entUnaUser(void * va, unsigned long opcode,
"4: stq_u %1,0(%5)\n"
"5:\n"
".section __ex_table,\"a\"\n"
" .gprel32 1b\n"
" .long 1b - .\n"
" lda %2,5b-1b(%0)\n"
" .gprel32 2b\n"
" .long 2b - .\n"
" lda %1,5b-2b(%0)\n"
" .gprel32 3b\n"
" .long 3b - .\n"
" lda $31,5b-3b(%0)\n"
" .gprel32 4b\n"
" .long 4b - .\n"
" lda $31,5b-4b(%0)\n"
".previous"
: "=r"(error), "=&r"(tmp1), "=&r"(tmp2),
......@@ -988,13 +988,13 @@ do_entUnaUser(void * va, unsigned long opcode,
"4: stq_u %1,0(%5)\n"
"5:\n"
".section __ex_table,\"a\"\n"
" .gprel32 1b\n"
" .long 1b - .\n"
" lda %2,5b-1b(%0)\n"
" .gprel32 2b\n"
" .long 2b - .\n"
" lda %1,5b-2b(%0)\n"
" .gprel32 3b\n"
" .long 3b - .\n"
" lda $31,5b-3b(%0)\n"
" .gprel32 4b\n"
" .long 4b - .\n"
" lda $31,5b-4b(%0)\n"
".previous"
: "=r"(error), "=&r"(tmp1), "=&r"(tmp2),
......@@ -1022,13 +1022,13 @@ do_entUnaUser(void * va, unsigned long opcode,
"4: stq_u %1,0(%5)\n"
"5:\n"
".section __ex_table,\"a\"\n\t"
" .gprel32 1b\n"
" .long 1b - .\n"
" lda %2,5b-1b(%0)\n"
" .gprel32 2b\n"
" .long 2b - .\n"
" lda %1,5b-2b(%0)\n"
" .gprel32 3b\n"
" .long 3b - .\n"
" lda $31,5b-3b(%0)\n"
" .gprel32 4b\n"
" .long 4b - .\n"
" lda $31,5b-4b(%0)\n"
".previous"
: "=r"(error), "=&r"(tmp1), "=&r"(tmp2),
......
arch/alpha/lib/csum_partial_copy.c
View file @ ab7c828b
......@@ -46,7 +46,7 @@ __asm__ __volatile__("insqh %1,%2,%0":"=r" (z):"r" (x),"r" (y))
"1: ldq_u %0,%2\n" \
"2:\n" \
".section __ex_table,\"a\"\n" \
" .gprel32 1b\n" \
" .long 1b - .\n" \
" lda %0,2b-1b(%1)\n" \
".previous" \
: "=r"(x), "=r"(__guu_err) \
......@@ -61,7 +61,7 @@ __asm__ __volatile__("insqh %1,%2,%0":"=r" (z):"r" (x),"r" (y))
"1: stq_u %2,%1\n" \
"2:\n" \
".section __ex_table,\"a\"\n" \
" .gprel32 1b" \
" .long 1b - ." \
" lda $31,2b-1b(%0)\n" \
".previous" \
: "=r"(__puu_err) \
......
arch/alpha/lib/memmove.S
View file @ ab7c828b
......@@ -11,6 +11,15 @@
.set noreorder
.text
.align 4
.globl bcopy
.ent bcopy
bcopy:
mov $16,$0
mov $17,$16
mov $0,$17
.end bcopy
.align 4
.globl memmove
.ent memmove
......
include/asm-alpha/ptrace.h
View file @ ab7c828b
......@@ -71,15 +71,8 @@ struct switch_stack {
#define instruction_pointer(regs) ((regs)->pc)
extern void show_regs(struct pt_regs *);
/*
* TODO: if kernel-only threads do not have a dummy pt_regs structure at the
* top of the stack, this would cause kernel stack corruption. Either check
* first that we're not dealing with a kernel thread or change the kernel
* stacks to allocate a dummy pt_regs structure.
*/
#define alpha_task_regs(task) ((struct pt_regs *) \
((long) task->thread_info + PAGE_SIZE) - 1)
#define alpha_task_regs(task) \
((struct pt_regs *) ((long) (task)->thread_info + 2*PAGE_SIZE) - 1)
#define force_successful_syscall_return() (alpha_task_regs(current)->r0 = 0)
......
include/asm-alpha/string.h
View file @ ab7c828b
......@@ -13,6 +13,7 @@
#define __HAVE_ARCH_MEMCPY
extern void * memcpy(void *, const void *, size_t);
#define __HAVE_ARCH_MEMMOVE
#define __HAVE_ARCH_BCOPY
extern void * memmove(void *, const void *, size_t);
/* For backward compatibility with modules. Unused otherwise. */
......
include/asm-alpha/uaccess.h
View file @ ab7c828b
......@@ -340,25 +340,31 @@ __asm__ __volatile__("1: stb %r2,%1\n" \
* Complex access routines
*/
/* This little bit of silliness is to get the GP loaded for a function
that ordinarily wouldn't. Otherwise we could have it done by the macro
directly, which can be optimized the linker. */
#ifdef MODULE
#define __module_address(sym) "r"(sym),
#define __module_call(ra, arg, sym) "jsr $" #ra ",(%" #arg ")," #sym
#else
#define __module_address(sym)
#define __module_call(ra, arg, sym) "bsr $" #ra "," #sym " !samegp"
#endif
extern void __copy_user(void);
extern inline long
__copy_tofrom_user_nocheck(void *to, const void *from, long len)
{
/* This little bit of silliness is to get the GP loaded for
a function that ordinarily wouldn't. Otherwise we could
have it done by the macro directly, which can be optimized
the linker. */
register void * pv __asm__("$27") = __copy_user;
register void * __cu_to __asm__("$6") = to;
register const void * __cu_from __asm__("$7") = from;
register long __cu_len __asm__("$0") = len;
__asm__ __volatile__(
"jsr $28,(%3),__copy_user"
: "=r" (__cu_len), "=r" (__cu_from), "=r" (__cu_to), "=r"(pv)
: "0" (__cu_len), "1" (__cu_from), "2" (__cu_to), "3"(pv)
__module_call(28, 3, __copy_user)
: "=r" (__cu_len), "=r" (__cu_from), "=r" (__cu_to)
: __module_address(__copy_user)
"0" (__cu_len), "1" (__cu_from), "2" (__cu_to)
: "$1","$2","$3","$4","$5","$28","memory");
return __cu_len;
......@@ -367,20 +373,8 @@ __copy_tofrom_user_nocheck(void *to, const void *from, long len)
extern inline long
__copy_tofrom_user(void *to, const void *from, long len, const void *validate)
{
if (__access_ok((long)validate, len, get_fs())) {
register void * pv __asm__("$27") = __copy_user;
register void * __cu_to __asm__("$6") = to;
register const void * __cu_from __asm__("$7") = from;
register long __cu_len __asm__("$0") = len;
__asm__ __volatile__(
"jsr $28,(%3),__copy_user"
: "=r"(__cu_len), "=r"(__cu_from), "=r"(__cu_to),
"=r" (pv)
: "0" (__cu_len), "1" (__cu_from), "2" (__cu_to),
"3" (pv)
: "$1","$2","$3","$4","$5","$28","memory");
len = __cu_len;
}
if (__access_ok((long)validate, len, get_fs()))
len = __copy_tofrom_user_nocheck(to, from, len);
return len;
}
......@@ -404,18 +398,13 @@ extern void __do_clear_user(void);
extern inline long
__clear_user(void *to, long len)
{
/* This little bit of silliness is to get the GP loaded for
a function that ordinarily wouldn't. Otherwise we could
have it done by the macro directly, which can be optimized
the linker. */
register void * pv __asm__("$27") = __do_clear_user;
register void * __cl_to __asm__("$6") = to;
register long __cl_len __asm__("$0") = len;
__asm__ __volatile__(
"jsr $28,(%2),__do_clear_user"
: "=r"(__cl_len), "=r"(__cl_to), "=r"(pv)
: "0"(__cl_len), "1"(__cl_to), "2"(pv)
__module_call(28, 2, __do_clear_user)
: "=r"(__cl_len), "=r"(__cl_to)
: __module_address(__do_clear_user)
"0"(__cl_len), "1"(__cl_to)
: "$1","$2","$3","$4","$5","$28","memory");
return __cl_len;
}
......@@ -423,20 +412,14 @@ __clear_user(void *to, long len)
extern inline long
clear_user(void *to, long len)
{
if (__access_ok((long)to, len, get_fs())) {
register void * pv __asm__("$27") = __do_clear_user;
register void * __cl_to __asm__("$6") = to;
register long __cl_len __asm__("$0") = len;
__asm__ __volatile__(
"jsr $28,(%2),__do_clear_user"
: "=r"(__cl_len), "=r"(__cl_to), "=r"(pv)
: "0"(__cl_len), "1"(__cl_to), "2"(pv)
: "$1","$2","$3","$4","$5","$28","memory");
len = __cl_len;
}
if (__access_ok((long)to, len, get_fs()))
len = __clear_user(to, len);
return len;
}
#undef __module_address
#undef __module_call
/* Returns: -EFAULT if exception before terminator, N if the entire
buffer filled, else strlen. */
......
include/asm-alpha/unaligned.h
View file @ ab7c828b
......@@ -14,7 +14,7 @@
* the get/put functions are indeed always optimized,
* and that we use the correct sizes.
*/
extern void bad_unaligned_access_length(void);
extern void bad_unaligned_access_length(void) __attribute__((noreturn));
/*
* EGCS 1.1 knows about arbitrary unaligned loads. Define some
......
include/asm-alpha/unistd.h
View file @ ab7c828b
......@@ -358,7 +358,8 @@
#define __NR_clock_gettime 420
#define __NR_clock_getres 421
#define __NR_clock_nanosleep 422
#define NR_SYSCALLS 423
#define __NR_semtimedop 423
#define NR_SYSCALLS 424
#if defined(__GNUC__)
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment
GitLab Nexedi Edition | About GitLab | About Nexedi | 沪ICP备2021021310号-2 | 沪ICP备2021021310号-7