>>> On 20.01.12 at 19:44, Marcus Granado
<marcus.granado@citrix.com> wrote:
> xenoprof: Adjust indentation
>
> Bring indentation into Xen hypervisor standard coding style.
If you fiddle with indentation, then the rest of the coding style should
really also be adjusted at once. Ending up with a hybrid between Linux
and Xen imo is worse than using one of the styles consistently.
Jan
> No functional changes.
>
> Signed-off-by: George Dunlap <george.dunlap@eu.citrix.com>
>
>
> diff -r 9cdcedc133e5 -r f6953e89913f xen/arch/x86/oprofile/backtrace.c
> --- a/xen/arch/x86/oprofile/backtrace.c Wed Jan 11 10:34:45 2012 +0100
> +++ b/xen/arch/x86/oprofile/backtrace.c Wed Jan 18 17:23:02 2012 +0000
> @@ -16,48 +16,48 @@
> #include<asm/guest_access.h>
>
> struct frame_head {
> - struct frame_head * ebp;
> - unsigned long ret;
> + struct frame_head * ebp;
> + unsigned long ret;
> } __attribute__((packed));
>
> static struct frame_head *
> dump_hypervisor_backtrace(struct domain *d, struct vcpu *vcpu,
> struct frame_head * head, int mode)
> {
> - if (!xenoprof_add_trace(d, vcpu, head->ret, mode))
> - return 0;
> -
> - /* frame pointers should strictly progress back up the stack
> - * (towards higher addresses) */
> - if (head >= head->ebp)
> - return NULL;
> -
> - return head->ebp;
> + if (!xenoprof_add_trace(d, vcpu, head->ret, mode))
> + return 0;
> +
> + /* frame pointers should strictly progress back up the stack
> + * (towards higher addresses) */
> + if (head >= head->ebp)
> + return NULL;
> +
> + return head->ebp;
> }
>
> static struct frame_head *
> dump_guest_backtrace(struct domain *d, struct vcpu *vcpu,
> struct frame_head * head, int mode)
> {
> - struct frame_head bufhead[2];
> - XEN_GUEST_HANDLE(char) guest_head = guest_handle_from_ptr(head, char);
> + struct frame_head bufhead[2];
> + XEN_GUEST_HANDLE(char) guest_head = guest_handle_from_ptr(head, char);
>
> - /* Also check accessibility of one struct frame_head beyond */
> - if (!guest_handle_okay(guest_head, sizeof(bufhead)))
> - return 0;
> - if (__copy_from_guest_offset((char *)bufhead, guest_head, 0,
> - sizeof(bufhead)))
> - return 0;
> -
> - if (!xenoprof_add_trace(d, vcpu, bufhead[0].ret, mode))
> - return 0;
> -
> - /* frame pointers should strictly progress back up the stack
> - * (towards higher addresses) */
> - if (head >= bufhead[0].ebp)
> - return NULL;
> -
> - return bufhead[0].ebp;
> + /* Also check accessibility of one struct frame_head beyond */
> + if (!guest_handle_okay(guest_head, sizeof(bufhead)))
> + return 0;
> + if (__copy_from_guest_offset((char *)bufhead, guest_head, 0,
> + sizeof(bufhead)))
> + return 0;
> +
> + if (!xenoprof_add_trace(d, vcpu, bufhead[0].ret, mode))
> + return 0;
> +
> + /* frame pointers should strictly progress back up the stack
> + * (towards higher addresses) */
> + if (head >= bufhead[0].ebp)
> + return NULL;
> +
> + return bufhead[0].ebp;
> }
>
> /*
> @@ -94,22 +94,22 @@ dump_guest_backtrace(struct domain *d, s
> static int valid_hypervisor_stack(struct frame_head * head,
> struct cpu_user_regs * regs)
> {
> - unsigned long headaddr = (unsigned long)head;
> + unsigned long headaddr = (unsigned long)head;
> #ifdef CONFIG_X86_64
> - unsigned long stack = (unsigned long)regs->rsp;
> + unsigned long stack = (unsigned long)regs->rsp;
> #else
> - unsigned long stack = (unsigned long)regs;
> + unsigned long stack = (unsigned long)regs;
> #endif
> - unsigned long stack_base = (stack & ~(STACK_SIZE - 1)) +
STACK_SIZE;
> + unsigned long stack_base = (stack & ~(STACK_SIZE - 1)) +
STACK_SIZE;
>
> - return headaddr > stack && headaddr < stack_base;
> + return headaddr > stack && headaddr < stack_base;
> }
> #else
> /* without fp, it''s just junk */
> static int valid_hypervisor_stack(struct frame_head * head,
> struct cpu_user_regs * regs)
> {
> - return 0;
> + return 0;
> }
> #endif
>
> @@ -117,16 +117,16 @@ void xenoprof_backtrace(struct domain *d
> struct cpu_user_regs * const regs,
> unsigned long depth, int mode)
> {
> - struct frame_head *head;
> + struct frame_head *head;
>
> - head = (struct frame_head *)regs->ebp;
> + head = (struct frame_head *)regs->ebp;
>
> - if (mode > 1) {
> - while (depth-- && valid_hypervisor_stack(head, regs))
> - head = dump_hypervisor_backtrace(d, vcpu, head, mode);
> - return;
> - }
> + if (mode > 1) {
> + while (depth-- && valid_hypervisor_stack(head, regs))
> + head = dump_hypervisor_backtrace(d, vcpu, head, mode);
> + return;
> + }
>
> - while (depth-- && head)
> - head = dump_guest_backtrace(d, vcpu, head, mode);
> + while (depth-- && head)
> + head = dump_guest_backtrace(d, vcpu, head, mode);
> }