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asm-generic: asm/syscall.h cleanup
This is a single cleanup from Peter Collingbourne, removing some dead code. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEo6/YBQwIrVS28WGKmmx57+YAGNkFAmGKm+kACgkQmmx57+YA GNkksg/7BUxJrWFrQmLA3fhzh4wG3KswdrKTGQMf0jRVI1n77vmdfig3hEJmMekH 0SZoIYmPztOSj34+6p4NxuqY/Sk62oYLr8Awo8ZLDhIBWNUJE8UWC07Qb/3DpGbp JfD7/8mXu10htgM85aGlhaVLnHvvqUBR8PlkJUGNxuY5Gy2L+eCkpwCAYlZpSOqr vs0BJWFY1LzO1POcjIq4/IM0PvcU2ncLB5XoxDjjIIWnWKyHzWY21ZvoeaNumvou xqQ/Hj8Sc+ufS0yNlSgIC+bJP0bp1bSw/dALKr8oYxLt7X9LELVY3WXyRH+It4nS b6HPYmga26NVq/u7RrylBA+2fRCDB8E6z73gHt4SeHrRDEvFjhNzIyV+aXPae/dY XI/pjiwpG6k6FpSnF69YZJ/Y+GmUA90V/Jq8aLFZhGz8SgpjRl+2foEUSDhRVXCA jGB1Y388m0e6jPlVJROB7ORzXMd8K5iciyUGqtAI87QCOtPozn10ruh5RdziguKm kDW5IKy9E4l1ch8WRprVbgV5Ew+QWKS1JIbyjDaX3jN0lUPCqgwkwvRxxtgdFnVA Lq5BiUdraSWFUr84rLU3gCRU0+VoEdyZYI+bQGGNlQ4ovmLYU1nLmCU/azMvSEgz ZsoM5YdffShxUtfwMg+W67RpYOjSnV55ZzwN0+d1C2oqz9xECXc= =8EFP -----END PGP SIGNATURE----- Merge tag 'asm-generic-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic Pull asm-generic cleanup from Arnd Bergmann: "This is a single cleanup from Peter Collingbourne, removing some dead code" * tag 'asm-generic-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: arch: remove unused function syscall_set_arguments()
This commit is contained in:
commit
e8f023caee
18 changed files with 14 additions and 263 deletions
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@ -77,16 +77,6 @@ static inline void syscall_get_arguments(struct task_struct *task,
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memcpy(args, ®s->ARM_r0 + 1, 5 * sizeof(args[0]));
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memcpy(args, ®s->ARM_r0 + 1, 5 * sizeof(args[0]));
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}
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}
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static inline void syscall_set_arguments(struct task_struct *task,
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struct pt_regs *regs,
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const unsigned long *args)
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{
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regs->ARM_ORIG_r0 = args[0];
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args++;
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memcpy(®s->ARM_r0 + 1, args, 5 * sizeof(args[0]));
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}
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static inline int syscall_get_arch(struct task_struct *task)
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static inline int syscall_get_arch(struct task_struct *task)
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{
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{
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/* ARM tasks don't change audit architectures on the fly. */
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/* ARM tasks don't change audit architectures on the fly. */
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@ -73,16 +73,6 @@ static inline void syscall_get_arguments(struct task_struct *task,
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memcpy(args, ®s->regs[1], 5 * sizeof(args[0]));
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memcpy(args, ®s->regs[1], 5 * sizeof(args[0]));
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}
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}
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static inline void syscall_set_arguments(struct task_struct *task,
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struct pt_regs *regs,
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const unsigned long *args)
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{
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regs->orig_x0 = args[0];
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args++;
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memcpy(®s->regs[1], args, 5 * sizeof(args[0]));
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}
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/*
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/*
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* We don't care about endianness (__AUDIT_ARCH_LE bit) here because
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* We don't care about endianness (__AUDIT_ARCH_LE bit) here because
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* AArch64 has the same system calls both on little- and big- endian.
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* AArch64 has the same system calls both on little- and big- endian.
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@ -59,15 +59,6 @@ syscall_get_arguments(struct task_struct *task, struct pt_regs *regs,
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memcpy(args, ®s->a1, 5 * sizeof(args[0]));
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memcpy(args, ®s->a1, 5 * sizeof(args[0]));
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}
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}
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static inline void
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syscall_set_arguments(struct task_struct *task, struct pt_regs *regs,
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const unsigned long *args)
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{
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regs->orig_a0 = args[0];
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args++;
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memcpy(®s->a1, args, 5 * sizeof(regs->a1));
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}
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static inline int
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static inline int
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syscall_get_arch(struct task_struct *task)
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syscall_get_arch(struct task_struct *task)
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{
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{
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@ -55,21 +55,8 @@ static inline void syscall_set_return_value(struct task_struct *task,
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}
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}
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}
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}
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extern void ia64_syscall_get_set_arguments(struct task_struct *task,
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extern void syscall_get_arguments(struct task_struct *task,
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struct pt_regs *regs, unsigned long *args, int rw);
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struct pt_regs *regs, unsigned long *args);
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static inline void syscall_get_arguments(struct task_struct *task,
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struct pt_regs *regs,
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unsigned long *args)
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{
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ia64_syscall_get_set_arguments(task, regs, args, 0);
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}
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static inline void syscall_set_arguments(struct task_struct *task,
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struct pt_regs *regs,
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unsigned long *args)
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{
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ia64_syscall_get_set_arguments(task, regs, args, 1);
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}
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static inline int syscall_get_arch(struct task_struct *task)
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static inline int syscall_get_arch(struct task_struct *task)
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{
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{
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@ -2001,17 +2001,16 @@ const struct user_regset_view *task_user_regset_view(struct task_struct *tsk)
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return &user_ia64_view;
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return &user_ia64_view;
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}
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}
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struct syscall_get_set_args {
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struct syscall_get_args {
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unsigned int i;
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unsigned int i;
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unsigned int n;
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unsigned int n;
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unsigned long *args;
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unsigned long *args;
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struct pt_regs *regs;
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struct pt_regs *regs;
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int rw;
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};
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};
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static void syscall_get_set_args_cb(struct unw_frame_info *info, void *data)
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static void syscall_get_args_cb(struct unw_frame_info *info, void *data)
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{
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{
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struct syscall_get_set_args *args = data;
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struct syscall_get_args *args = data;
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struct pt_regs *pt = args->regs;
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struct pt_regs *pt = args->regs;
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unsigned long *krbs, cfm, ndirty, nlocals, nouts;
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unsigned long *krbs, cfm, ndirty, nlocals, nouts;
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int i, count;
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int i, count;
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@ -2042,37 +2041,31 @@ static void syscall_get_set_args_cb(struct unw_frame_info *info, void *data)
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/* Iterate over outs. */
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/* Iterate over outs. */
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for (i = 0; i < count; i++) {
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for (i = 0; i < count; i++) {
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int j = ndirty + nlocals + i + args->i;
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int j = ndirty + nlocals + i + args->i;
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if (args->rw)
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args->args[i] = *ia64_rse_skip_regs(krbs, j);
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*ia64_rse_skip_regs(krbs, j) = args->args[i];
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else
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args->args[i] = *ia64_rse_skip_regs(krbs, j);
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}
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}
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if (!args->rw) {
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while (i < args->n) {
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while (i < args->n) {
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args->args[i] = 0;
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args->args[i] = 0;
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i++;
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i++;
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}
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}
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}
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}
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}
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void ia64_syscall_get_set_arguments(struct task_struct *task,
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void syscall_get_arguments(struct task_struct *task,
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struct pt_regs *regs, unsigned long *args, int rw)
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struct pt_regs *regs, unsigned long *args)
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{
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{
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struct syscall_get_set_args data = {
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struct syscall_get_args data = {
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.i = 0,
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.i = 0,
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.n = 6,
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.n = 6,
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.args = args,
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.args = args,
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.regs = regs,
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.regs = regs,
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.rw = rw,
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};
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};
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if (task == current)
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if (task == current)
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unw_init_running(syscall_get_set_args_cb, &data);
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unw_init_running(syscall_get_args_cb, &data);
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else {
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else {
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struct unw_frame_info ufi;
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struct unw_frame_info ufi;
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memset(&ufi, 0, sizeof(ufi));
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memset(&ufi, 0, sizeof(ufi));
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unw_init_from_blocked_task(&ufi, task);
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unw_init_from_blocked_task(&ufi, task);
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syscall_get_set_args_cb(&ufi, &data);
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syscall_get_args_cb(&ufi, &data);
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}
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}
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}
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}
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@ -58,28 +58,6 @@ static inline microblaze_reg_t microblaze_get_syscall_arg(struct pt_regs *regs,
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return ~0;
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return ~0;
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}
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}
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static inline void microblaze_set_syscall_arg(struct pt_regs *regs,
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unsigned int n,
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unsigned long val)
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{
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switch (n) {
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case 5:
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regs->r10 = val;
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case 4:
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regs->r9 = val;
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case 3:
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regs->r8 = val;
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case 2:
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regs->r7 = val;
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case 1:
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regs->r6 = val;
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case 0:
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regs->r5 = val;
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default:
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BUG();
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}
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}
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static inline void syscall_get_arguments(struct task_struct *task,
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static inline void syscall_get_arguments(struct task_struct *task,
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struct pt_regs *regs,
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struct pt_regs *regs,
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unsigned long *args)
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unsigned long *args)
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@ -91,17 +69,6 @@ static inline void syscall_get_arguments(struct task_struct *task,
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*args++ = microblaze_get_syscall_arg(regs, i++);
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*args++ = microblaze_get_syscall_arg(regs, i++);
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}
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}
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static inline void syscall_set_arguments(struct task_struct *task,
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struct pt_regs *regs,
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const unsigned long *args)
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{
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unsigned int i = 0;
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unsigned int n = 6;
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while (n--)
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microblaze_set_syscall_arg(regs, i++, *args++);
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}
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asmlinkage unsigned long do_syscall_trace_enter(struct pt_regs *regs);
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asmlinkage unsigned long do_syscall_trace_enter(struct pt_regs *regs);
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asmlinkage void do_syscall_trace_leave(struct pt_regs *regs);
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asmlinkage void do_syscall_trace_leave(struct pt_regs *regs);
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@ -132,28 +132,6 @@ syscall_get_arguments(struct task_struct *task, struct pt_regs *regs,
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memcpy(args, ®s->uregs[0] + 1, 5 * sizeof(args[0]));
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memcpy(args, ®s->uregs[0] + 1, 5 * sizeof(args[0]));
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}
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}
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/**
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* syscall_set_arguments - change system call parameter value
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* @task: task of interest, must be in system call entry tracing
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* @regs: task_pt_regs() of @task
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* @args: array of argument values to store
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*
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* Changes 6 arguments to the system call. The first argument gets value
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* @args[0], and so on.
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*
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* It's only valid to call this when @task is stopped for tracing on
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* entry to a system call, due to %TIF_SYSCALL_TRACE or %TIF_SYSCALL_AUDIT.
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*/
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static inline void
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syscall_set_arguments(struct task_struct *task, struct pt_regs *regs,
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const unsigned long *args)
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{
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regs->orig_r0 = args[0];
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args++;
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memcpy(®s->uregs[0] + 1, args, 5 * sizeof(args[0]));
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}
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static inline int
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static inline int
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syscall_get_arch(struct task_struct *task)
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syscall_get_arch(struct task_struct *task)
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{
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{
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@ -58,17 +58,6 @@ static inline void syscall_get_arguments(struct task_struct *task,
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*args = regs->r9;
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*args = regs->r9;
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}
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}
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static inline void syscall_set_arguments(struct task_struct *task,
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struct pt_regs *regs, const unsigned long *args)
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{
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regs->r4 = *args++;
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regs->r5 = *args++;
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regs->r6 = *args++;
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regs->r7 = *args++;
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regs->r8 = *args++;
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regs->r9 = *args;
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}
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static inline int syscall_get_arch(struct task_struct *task)
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static inline int syscall_get_arch(struct task_struct *task)
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{
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{
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return AUDIT_ARCH_NIOS2;
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return AUDIT_ARCH_NIOS2;
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@ -57,13 +57,6 @@ syscall_get_arguments(struct task_struct *task, struct pt_regs *regs,
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memcpy(args, ®s->gpr[3], 6 * sizeof(args[0]));
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memcpy(args, ®s->gpr[3], 6 * sizeof(args[0]));
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}
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}
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static inline void
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syscall_set_arguments(struct task_struct *task, struct pt_regs *regs,
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const unsigned long *args)
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{
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memcpy(®s->gpr[3], args, 6 * sizeof(args[0]));
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}
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static inline int syscall_get_arch(struct task_struct *task)
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static inline int syscall_get_arch(struct task_struct *task)
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{
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{
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return AUDIT_ARCH_OPENRISC;
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return AUDIT_ARCH_OPENRISC;
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|
@ -103,16 +103,6 @@ static inline void syscall_get_arguments(struct task_struct *task,
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}
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}
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}
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}
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static inline void syscall_set_arguments(struct task_struct *task,
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struct pt_regs *regs,
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const unsigned long *args)
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{
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memcpy(®s->gpr[3], args, 6 * sizeof(args[0]));
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/* Also copy the first argument into orig_gpr3 */
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regs->orig_gpr3 = args[0];
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}
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static inline int syscall_get_arch(struct task_struct *task)
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static inline int syscall_get_arch(struct task_struct *task)
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{
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{
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if (is_32bit_task())
|
if (is_32bit_task())
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|
|
|
@ -64,15 +64,6 @@ static inline void syscall_get_arguments(struct task_struct *task,
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memcpy(args, ®s->a1, 5 * sizeof(args[0]));
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memcpy(args, ®s->a1, 5 * sizeof(args[0]));
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}
|
}
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|
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static inline void syscall_set_arguments(struct task_struct *task,
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struct pt_regs *regs,
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const unsigned long *args)
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{
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regs->orig_a0 = args[0];
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args++;
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memcpy(®s->a1, args, 5 * sizeof(regs->a1));
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}
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|
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static inline int syscall_get_arch(struct task_struct *task)
|
static inline int syscall_get_arch(struct task_struct *task)
|
||||||
{
|
{
|
||||||
#ifdef CONFIG_64BIT
|
#ifdef CONFIG_64BIT
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||||||
|
|
|
@ -78,18 +78,6 @@ static inline void syscall_get_arguments(struct task_struct *task,
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args[0] = regs->orig_gpr2 & mask;
|
args[0] = regs->orig_gpr2 & mask;
|
||||||
}
|
}
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||||||
|
|
||||||
static inline void syscall_set_arguments(struct task_struct *task,
|
|
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struct pt_regs *regs,
|
|
||||||
const unsigned long *args)
|
|
||||||
{
|
|
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unsigned int n = 6;
|
|
||||||
|
|
||||||
while (n-- > 0)
|
|
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if (n > 0)
|
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regs->gprs[2 + n] = args[n];
|
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||||||
regs->orig_gpr2 = args[0];
|
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||||||
}
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|
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static inline int syscall_get_arch(struct task_struct *task)
|
static inline int syscall_get_arch(struct task_struct *task)
|
||||||
{
|
{
|
||||||
#ifdef CONFIG_COMPAT
|
#ifdef CONFIG_COMPAT
|
||||||
|
|
|
@ -57,18 +57,6 @@ static inline void syscall_get_arguments(struct task_struct *task,
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||||||
args[0] = regs->regs[4];
|
args[0] = regs->regs[4];
|
||||||
}
|
}
|
||||||
|
|
||||||
static inline void syscall_set_arguments(struct task_struct *task,
|
|
||||||
struct pt_regs *regs,
|
|
||||||
const unsigned long *args)
|
|
||||||
{
|
|
||||||
regs->regs[1] = args[5];
|
|
||||||
regs->regs[0] = args[4];
|
|
||||||
regs->regs[7] = args[3];
|
|
||||||
regs->regs[6] = args[2];
|
|
||||||
regs->regs[5] = args[1];
|
|
||||||
regs->regs[4] = args[0];
|
|
||||||
}
|
|
||||||
|
|
||||||
static inline int syscall_get_arch(struct task_struct *task)
|
static inline int syscall_get_arch(struct task_struct *task)
|
||||||
{
|
{
|
||||||
int arch = AUDIT_ARCH_SH;
|
int arch = AUDIT_ARCH_SH;
|
||||||
|
|
|
@ -117,16 +117,6 @@ static inline void syscall_get_arguments(struct task_struct *task,
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
static inline void syscall_set_arguments(struct task_struct *task,
|
|
||||||
struct pt_regs *regs,
|
|
||||||
const unsigned long *args)
|
|
||||||
{
|
|
||||||
unsigned int i;
|
|
||||||
|
|
||||||
for (i = 0; i < 6; i++)
|
|
||||||
regs->u_regs[UREG_I0 + i] = args[i];
|
|
||||||
}
|
|
||||||
|
|
||||||
static inline int syscall_get_arch(struct task_struct *task)
|
static inline int syscall_get_arch(struct task_struct *task)
|
||||||
{
|
{
|
||||||
#if defined(CONFIG_SPARC64) && defined(CONFIG_COMPAT)
|
#if defined(CONFIG_SPARC64) && defined(CONFIG_COMPAT)
|
||||||
|
|
|
@ -62,20 +62,6 @@ static inline void syscall_get_arguments(struct task_struct *task,
|
||||||
*args = UPT_SYSCALL_ARG6(r);
|
*args = UPT_SYSCALL_ARG6(r);
|
||||||
}
|
}
|
||||||
|
|
||||||
static inline void syscall_set_arguments(struct task_struct *task,
|
|
||||||
struct pt_regs *regs,
|
|
||||||
const unsigned long *args)
|
|
||||||
{
|
|
||||||
struct uml_pt_regs *r = ®s->regs;
|
|
||||||
|
|
||||||
UPT_SYSCALL_ARG1(r) = *args++;
|
|
||||||
UPT_SYSCALL_ARG2(r) = *args++;
|
|
||||||
UPT_SYSCALL_ARG3(r) = *args++;
|
|
||||||
UPT_SYSCALL_ARG4(r) = *args++;
|
|
||||||
UPT_SYSCALL_ARG5(r) = *args++;
|
|
||||||
UPT_SYSCALL_ARG6(r) = *args;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* See arch/x86/um/asm/syscall.h for syscall_get_arch() definition. */
|
/* See arch/x86/um/asm/syscall.h for syscall_get_arch() definition. */
|
||||||
|
|
||||||
#endif /* __UM_SYSCALL_GENERIC_H */
|
#endif /* __UM_SYSCALL_GENERIC_H */
|
||||||
|
|
|
@ -87,15 +87,6 @@ static inline void syscall_get_arguments(struct task_struct *task,
|
||||||
memcpy(args, ®s->bx, 6 * sizeof(args[0]));
|
memcpy(args, ®s->bx, 6 * sizeof(args[0]));
|
||||||
}
|
}
|
||||||
|
|
||||||
static inline void syscall_set_arguments(struct task_struct *task,
|
|
||||||
struct pt_regs *regs,
|
|
||||||
unsigned int i, unsigned int n,
|
|
||||||
const unsigned long *args)
|
|
||||||
{
|
|
||||||
BUG_ON(i + n > 6);
|
|
||||||
memcpy(®s->bx + i, args, n * sizeof(args[0]));
|
|
||||||
}
|
|
||||||
|
|
||||||
static inline int syscall_get_arch(struct task_struct *task)
|
static inline int syscall_get_arch(struct task_struct *task)
|
||||||
{
|
{
|
||||||
return AUDIT_ARCH_I386;
|
return AUDIT_ARCH_I386;
|
||||||
|
@ -127,30 +118,6 @@ static inline void syscall_get_arguments(struct task_struct *task,
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
static inline void syscall_set_arguments(struct task_struct *task,
|
|
||||||
struct pt_regs *regs,
|
|
||||||
const unsigned long *args)
|
|
||||||
{
|
|
||||||
# ifdef CONFIG_IA32_EMULATION
|
|
||||||
if (task->thread_info.status & TS_COMPAT) {
|
|
||||||
regs->bx = *args++;
|
|
||||||
regs->cx = *args++;
|
|
||||||
regs->dx = *args++;
|
|
||||||
regs->si = *args++;
|
|
||||||
regs->di = *args++;
|
|
||||||
regs->bp = *args;
|
|
||||||
} else
|
|
||||||
# endif
|
|
||||||
{
|
|
||||||
regs->di = *args++;
|
|
||||||
regs->si = *args++;
|
|
||||||
regs->dx = *args++;
|
|
||||||
regs->r10 = *args++;
|
|
||||||
regs->r8 = *args++;
|
|
||||||
regs->r9 = *args;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
static inline int syscall_get_arch(struct task_struct *task)
|
static inline int syscall_get_arch(struct task_struct *task)
|
||||||
{
|
{
|
||||||
/* x32 tasks should be considered AUDIT_ARCH_X86_64. */
|
/* x32 tasks should be considered AUDIT_ARCH_X86_64. */
|
||||||
|
|
|
@ -68,17 +68,6 @@ static inline void syscall_get_arguments(struct task_struct *task,
|
||||||
args[i] = regs->areg[reg[i]];
|
args[i] = regs->areg[reg[i]];
|
||||||
}
|
}
|
||||||
|
|
||||||
static inline void syscall_set_arguments(struct task_struct *task,
|
|
||||||
struct pt_regs *regs,
|
|
||||||
const unsigned long *args)
|
|
||||||
{
|
|
||||||
static const unsigned int reg[] = XTENSA_SYSCALL_ARGUMENT_REGS;
|
|
||||||
unsigned int i;
|
|
||||||
|
|
||||||
for (i = 0; i < 6; ++i)
|
|
||||||
regs->areg[reg[i]] = args[i];
|
|
||||||
}
|
|
||||||
|
|
||||||
asmlinkage long xtensa_rt_sigreturn(void);
|
asmlinkage long xtensa_rt_sigreturn(void);
|
||||||
asmlinkage long xtensa_shmat(int, char __user *, int);
|
asmlinkage long xtensa_shmat(int, char __user *, int);
|
||||||
asmlinkage long xtensa_fadvise64_64(int, int,
|
asmlinkage long xtensa_fadvise64_64(int, int,
|
||||||
|
|
|
@ -117,22 +117,6 @@ void syscall_set_return_value(struct task_struct *task, struct pt_regs *regs,
|
||||||
void syscall_get_arguments(struct task_struct *task, struct pt_regs *regs,
|
void syscall_get_arguments(struct task_struct *task, struct pt_regs *regs,
|
||||||
unsigned long *args);
|
unsigned long *args);
|
||||||
|
|
||||||
/**
|
|
||||||
* syscall_set_arguments - change system call parameter value
|
|
||||||
* @task: task of interest, must be in system call entry tracing
|
|
||||||
* @regs: task_pt_regs() of @task
|
|
||||||
* @args: array of argument values to store
|
|
||||||
*
|
|
||||||
* Changes 6 arguments to the system call.
|
|
||||||
* The first argument gets value @args[0], and so on.
|
|
||||||
*
|
|
||||||
* It's only valid to call this when @task is stopped for tracing on
|
|
||||||
* entry to a system call, due to %SYSCALL_WORK_SYSCALL_TRACE or
|
|
||||||
* %SYSCALL_WORK_SYSCALL_AUDIT.
|
|
||||||
*/
|
|
||||||
void syscall_set_arguments(struct task_struct *task, struct pt_regs *regs,
|
|
||||||
const unsigned long *args);
|
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* syscall_get_arch - return the AUDIT_ARCH for the current system call
|
* syscall_get_arch - return the AUDIT_ARCH for the current system call
|
||||||
* @task: task of interest, must be blocked
|
* @task: task of interest, must be blocked
|
||||||
|
|
Loading…
Add table
Reference in a new issue