diff options
Diffstat (limited to 'tools/perf/util/config.c')
| -rw-r--r-- | tools/perf/util/config.c | 117 |
1 files changed, 100 insertions, 17 deletions
diff --git a/tools/perf/util/config.c b/tools/perf/util/config.c index dabe892d0e5..24519e14ac5 100644 --- a/tools/perf/util/config.c +++ b/tools/perf/util/config.c @@ -1,5 +1,8 @@ /* - * GIT - The information manager from hell + * config.c + * + * Helper functions for parsing config items. + * Originally copied from GIT source. * * Copyright (C) Linus Torvalds, 2005 * Copyright (C) Johannes Schindelin, 2005 @@ -8,9 +11,15 @@ #include "util.h" #include "cache.h" #include "exec_cmd.h" +#include "util/hist.h" /* perf_hist_config */ #define MAXNAME (256) +#define DEBUG_CACHE_DIR ".debug" + + +char buildid_dir[MAXPATHLEN]; /* root dir for buildid, binary cache */ + static FILE *config_file; static const char *config_file_name; static int config_linenr; @@ -112,7 +121,7 @@ static char *parse_value(void) static inline int iskeychar(int c) { - return isalnum(c) || c == '-'; + return isalnum(c) || c == '-' || c == '_'; } static int get_value(config_fn_t fn, void *data, char *name, unsigned int len) @@ -127,7 +136,7 @@ static int get_value(config_fn_t fn, void *data, char *name, unsigned int len) break; if (!iskeychar(c)) break; - name[len++] = tolower(c); + name[len++] = c; if (len >= MAXNAME) return -1; } @@ -327,18 +336,30 @@ int perf_config_bool(const char *name, const char *value) return !!perf_config_bool_or_int(name, value, &discard); } -static int perf_default_core_config(const char *var __used, const char *value __used) +const char *perf_config_dirname(const char *name, const char *value) { - /* Add other config variables here and to Documentation/config.txt. */ + if (!name) + return NULL; + return value; +} + +static int perf_default_core_config(const char *var __maybe_unused, + const char *value __maybe_unused) +{ + /* Add other config variables here. */ return 0; } -int perf_default_config(const char *var, const char *value, void *dummy __used) +int perf_default_config(const char *var, const char *value, + void *dummy __maybe_unused) { if (!prefixcmp(var, "core.")) return perf_default_core_config(var, value); - /* Add other config variables here and to Documentation/config.txt. */ + if (!prefixcmp(var, "hist.")) + return perf_hist_config(var, value); + + /* Add other config variables here. */ return 0; } @@ -387,7 +408,6 @@ static int perf_config_global(void) int perf_config(config_fn_t fn, void *data) { int ret = 0, found = 0; - char *repo_config = NULL; const char *home = NULL; /* Setting $PERF_CONFIG makes perf read _only_ the given config file. */ @@ -402,19 +422,32 @@ int perf_config(config_fn_t fn, void *data) home = getenv("HOME"); if (perf_config_global() && home) { char *user_config = strdup(mkpath("%s/.perfconfig", home)); - if (!access(user_config, R_OK)) { - ret += perf_config_from_file(fn, user_config, data); - found += 1; + struct stat st; + + if (user_config == NULL) { + warning("Not enough memory to process %s/.perfconfig, " + "ignoring it.", home); + goto out; } - free(user_config); - } - repo_config = perf_pathdup("config"); - if (!access(repo_config, R_OK)) { - ret += perf_config_from_file(fn, repo_config, data); + if (stat(user_config, &st) < 0) + goto out_free; + + if (st.st_uid && (st.st_uid != geteuid())) { + warning("File %s not owned by current user or root, " + "ignoring it.", user_config); + goto out_free; + } + + if (!st.st_size) + goto out_free; + + ret += perf_config_from_file(fn, user_config, data); found += 1; +out_free: + free(user_config); } - free(repo_config); +out: if (found == 0) return -1; return ret; @@ -428,3 +461,53 @@ int config_error_nonbool(const char *var) { return error("Missing value for '%s'", var); } + +struct buildid_dir_config { + char *dir; +}; + +static int buildid_dir_command_config(const char *var, const char *value, + void *data) +{ + struct buildid_dir_config *c = data; + const char *v; + + /* same dir for all commands */ + if (!prefixcmp(var, "buildid.") && !strcmp(var + 8, "dir")) { + v = perf_config_dirname(var, value); + if (!v) + return -1; + strncpy(c->dir, v, MAXPATHLEN-1); + c->dir[MAXPATHLEN-1] = '\0'; + } + return 0; +} + +static void check_buildid_dir_config(void) +{ + struct buildid_dir_config c; + c.dir = buildid_dir; + perf_config(buildid_dir_command_config, &c); +} + +void set_buildid_dir(void) +{ + buildid_dir[0] = '\0'; + + /* try config file */ + check_buildid_dir_config(); + + /* default to $HOME/.debug */ + if (buildid_dir[0] == '\0') { + char *v = getenv("HOME"); + if (v) { + snprintf(buildid_dir, MAXPATHLEN-1, "%s/%s", + v, DEBUG_CACHE_DIR); + } else { + strncpy(buildid_dir, DEBUG_CACHE_DIR, MAXPATHLEN-1); + } + buildid_dir[MAXPATHLEN-1] = '\0'; + } + /* for communicating with external commands */ + setenv("PERF_BUILDID_DIR", buildid_dir, 1); +} |