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kernel/linux-imx6_3.14.28/tools/perf/util/alias.c 1.4 KB
6b13f685e   김민수   BSP 최초 추가
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  #include "cache.h"
  
  static const char *alias_key;
  static char *alias_val;
  
  static int alias_lookup_cb(const char *k, const char *v,
  			   void *cb __maybe_unused)
  {
  	if (!prefixcmp(k, "alias.") && !strcmp(k+6, alias_key)) {
  		if (!v)
  			return config_error_nonbool(k);
  		alias_val = strdup(v);
  		return 0;
  	}
  	return 0;
  }
  
  char *alias_lookup(const char *alias)
  {
  	alias_key = alias;
  	alias_val = NULL;
  	perf_config(alias_lookup_cb, NULL);
  	return alias_val;
  }
  
  int split_cmdline(char *cmdline, const char ***argv)
  {
  	int src, dst, count = 0, size = 16;
  	char quoted = 0;
  
  	*argv = malloc(sizeof(char*) * size);
  
  	/* split alias_string */
  	(*argv)[count++] = cmdline;
  	for (src = dst = 0; cmdline[src];) {
  		char c = cmdline[src];
  		if (!quoted && isspace(c)) {
  			cmdline[dst++] = 0;
  			while (cmdline[++src]
  					&& isspace(cmdline[src]))
  				; /* skip */
  			if (count >= size) {
  				size += 16;
  				*argv = realloc(*argv, sizeof(char*) * size);
  			}
  			(*argv)[count++] = cmdline + dst;
  		} else if (!quoted && (c == '\'' || c == '"')) {
  			quoted = c;
  			src++;
  		} else if (c == quoted) {
  			quoted = 0;
  			src++;
  		} else {
  			if (c == '\\' && quoted != '\'') {
  				src++;
  				c = cmdline[src];
  				if (!c) {
  					zfree(argv);
  					return error("cmdline ends with \\");
  				}
  			}
  			cmdline[dst++] = c;
  			src++;
  		}
  	}
  
  	cmdline[dst] = 0;
  
  	if (quoted) {
  		zfree(argv);
  		return error("unclosed quote");
  	}
  
  	return count;
  }