cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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helpline.c (1191B)

      1// SPDX-License-Identifier: GPL-2.0
      2#include <stdio.h>
      3#include <string.h>
      4#include <linux/kernel.h>
      5
      6#include "gtk.h"
      7#include "../ui.h"
      8#include "../helpline.h"
      9
     10static void gtk_helpline_pop(void)
     11{
     12	if (!perf_gtk__is_active_context(pgctx))
     13		return;
     14
     15	gtk_statusbar_pop(GTK_STATUSBAR(pgctx->statbar),
     16			  pgctx->statbar_ctx_id);
     17}
     18
     19static void gtk_helpline_push(const char *msg)
     20{
     21	if (!perf_gtk__is_active_context(pgctx))
     22		return;
     23
     24	gtk_statusbar_push(GTK_STATUSBAR(pgctx->statbar),
     25			   pgctx->statbar_ctx_id, msg);
     26}
     27
     28static int gtk_helpline_show(const char *fmt, va_list ap)
     29{
     30	int ret;
     31	char *ptr;
     32	static int backlog;
     33
     34	ret = vscnprintf(ui_helpline__current + backlog,
     35			 sizeof(ui_helpline__current) - backlog, fmt, ap);
     36	backlog += ret;
     37
     38	/* only first line can be displayed */
     39	ptr = strchr(ui_helpline__current, '\n');
     40	if (ptr && (ptr - ui_helpline__current) <= backlog) {
     41		*ptr = '\0';
     42		ui_helpline__puts(ui_helpline__current);
     43		backlog = 0;
     44	}
     45
     46	return ret;
     47}
     48
     49static struct ui_helpline gtk_helpline_fns = {
     50	.pop	= gtk_helpline_pop,
     51	.push	= gtk_helpline_push,
     52	.show	= gtk_helpline_show,
     53};
     54
     55void perf_gtk__init_helpline(void)
     56{
     57	helpline_fns = &gtk_helpline_fns;
     58}