diff options
Diffstat (limited to 'gcc-4.9/gcc/opts-global.c')
| -rw-r--r-- | gcc-4.9/gcc/opts-global.c | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/opts-global.c b/gcc-4.9/gcc/opts-global.c index e115c9bf2..425c3c0b2 100644 --- a/gcc-4.9/gcc/opts-global.c +++ b/gcc-4.9/gcc/opts-global.c @@ -44,6 +44,9 @@ along with GCC; see the file COPYING3. If not see #include "params.h" #include "l-ipo.h" #include "context.h" +#include "xregex.h" +#include "attribs.h" +#include "stringpool.h" typedef const char *const_char_p; /* For DEF_VEC_P. */ @@ -53,6 +56,13 @@ static vec<const_char_p> ignored_options; const char **in_fnames; unsigned num_in_fnames; +static struct reg_func_attr_patterns +{ + regex_t r; + const char *attribute; + struct reg_func_attr_patterns *next; +} *reg_func_attr_patterns; + /* Return a malloced slash-separated list of languages in MASK. */ static char * @@ -82,6 +92,62 @@ write_langs (unsigned int mask) return result; } +/* Add strings like attribute_str:pattern... to attribute pattern list. */ + +static void +add_attribute_pattern (const char *arg) +{ + char *tmp; + char *pattern_str; + struct reg_func_attr_patterns *one_pat; + int ec; + + /* We never free this string. */ + tmp = xstrdup (arg); + + pattern_str = strchr (tmp, ':'); + if (!pattern_str) + error ("invalid pattern in -ffunction-attribute-list option: %qs", tmp); + + *pattern_str = '\0'; + pattern_str ++; + + one_pat = XCNEW (struct reg_func_attr_patterns); + one_pat->next = reg_func_attr_patterns; + one_pat->attribute = tmp; + reg_func_attr_patterns = one_pat; + if ((ec= regcomp (&one_pat->r, pattern_str, REG_EXTENDED|REG_NOSUB) != 0)) + { + char err[100]; + regerror (ec, &one_pat->r, err, 99); + error ("invalid pattern in -ffunction-attribute-list option: %qs: %qs", + pattern_str, err); + } +} + +/* Match FNDECL's name with user specified patterns, and add attributes + to FNDECL. */ + +void +pattern_match_function_attributes (tree fndecl) +{ + const char *name; + struct reg_func_attr_patterns *one_pat; + + if (!fndecl) + return; + + if (!reg_func_attr_patterns) + return; + + name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (fndecl)); + + for (one_pat = reg_func_attr_patterns; one_pat; one_pat = one_pat->next) + if (regexec (&one_pat->r, name, 0, NULL, 0) == 0) + decl_attributes (&fndecl, tree_cons ( + get_identifier (one_pat->attribute), NULL, NULL), 0); +} + /* Complain that switch DECODED does not apply to this front end (mask LANG_MASK). */ @@ -449,6 +515,10 @@ handle_common_deferred_options (void) set_random_seed (opt->arg); break; + case OPT_ffunction_attribute_list_: + add_attribute_pattern (opt->arg); + break; + case OPT_fstack_limit: /* The real switch is -fno-stack-limit. */ if (!opt->value) |