diff options
Diffstat (limited to 'gcc-4.4.3/gcc/opts.c')
| -rw-r--r-- | gcc-4.4.3/gcc/opts.c | 62 |
1 files changed, 53 insertions, 9 deletions
diff --git a/gcc-4.4.3/gcc/opts.c b/gcc-4.4.3/gcc/opts.c index c6a92e650..5ab76edcc 100644 --- a/gcc-4.4.3/gcc/opts.c +++ b/gcc-4.4.3/gcc/opts.c @@ -45,9 +45,15 @@ along with GCC; see the file COPYING3. If not see #include "plugin.h" #include "cgraph.h" +/* Defined in value-prof.c. */ +extern struct ffvpt_options_s ffvtp_process_options (const char *arg); + /* Defined in ipa-inline.c. */ extern bool cgraph_gate_ipa_early_inlining (void); +/* Defined in coverage.c. */ +extern bool check_pmu_profile_options (const char *options); + /* Value of the -G xx switch, and whether it was passed or not. */ unsigned HOST_WIDE_INT g_switch_value; bool g_switch_set; @@ -355,6 +361,13 @@ static const char undocumented_msg[] = N_("This switch lacks documentation"); static const char undocumented_msg[] = ""; #endif +/* Used for bookkeeping if -Werror/-Wno-error was specified to know + * whether to make certain warnings errors by default. */ +static bool flag_werror_set; + +/* Options related to floating point value profiling. */ +struct ffvpt_options_s ffvpt_options; + /* Used for bookkeeping on whether user set these flags so -fprofile-use/-fprofile-generate does not use them. */ static bool profile_arc_flag_set, flag_profile_values_set; @@ -1018,8 +1031,8 @@ decode_options (unsigned int argc, const char **argv) else set_param_value ("min-crossjump-insns", initial_min_crossjump_insns); - /* Enable -Werror=coverage-mismatch by default */ - enable_warning_as_error("coverage-mismatch", 1, lang_mask); + /* Enable -Wcoverage-mismatch by default */ + warn_coverage_mismatch = true; if (first_time_p) { @@ -1044,6 +1057,18 @@ decode_options (unsigned int argc, const char **argv) handle_options (argc, argv, lang_mask); + if (!flag_werror_set) + { + /* Enable -Werror=coverage-mismatch by default, if it hasn't + * been set explicitly */ + if (warn_coverage_mismatch + && (global_dc->classify_diagnostic[OPT_Wcoverage_mismatch] == + DK_UNSPECIFIED)) + { + enable_warning_as_error("coverage-mismatch", 1, lang_mask); + } + } + /* If -gmlt was specified, make sure debug level is at least 1. */ if (generate_debug_line_table && debug_info_level < DINFO_LEVEL_TERSE) debug_info_level = DINFO_LEVEL_TERSE; @@ -1104,6 +1129,7 @@ decode_options (unsigned int argc, const char **argv) flag_pic = flag_pie; if (flag_pic && !flag_pie) flag_shlib = 1; + first_time_p = false; } if (optimize == 0) @@ -1183,13 +1209,6 @@ decode_options (unsigned int argc, const char **argv) warn_thread_safety = 0; } - /* Save the current optimization options if this is the first call. */ - if (first_time_p) - { - optimization_default_node = build_optimization_node (); - optimization_current_node = optimization_default_node; - first_time_p = false; - } if (flag_conserve_stack) { if (!PARAM_SET_P (PARAM_LARGE_STACK_FRAME)) @@ -1698,6 +1717,10 @@ common_handle_option (size_t scode, const char *arg, int value, set_Wextra (value); break; + case OPT_Werror: + flag_werror_set = true; + break; + case OPT_Werror_: enable_warning_as_error (arg, value, lang_mask); break; @@ -1960,6 +1983,15 @@ common_handle_option (size_t scode, const char *arg, int value, flag_inline_functions = value; break; + case OPT_fpmu_profile_generate_: + /* This should be ideally turned on in conjunction with + -fprofile-dir or -fprofile-generate in order to specify a + profile directory. */ + if (check_pmu_profile_options (arg)) + error ("Unrecognized pmu_profile_generate value \"%s\"", arg); + flag_pmu_profile_generate = xstrdup (arg); + break; + case OPT_fprofile_values: flag_profile_values_set = true; break; @@ -1991,6 +2023,10 @@ common_handle_option (size_t scode, const char *arg, int value, flag_value_profile_transformations_set = true; break; + case OPT_ffvpt_functions_: + ffvpt_options = ffvtp_process_options (arg); + break; + case OPT_frandom_seed: /* The real switch is -fno-random-seed. */ if (value) @@ -2225,6 +2261,11 @@ common_handle_option (size_t scode, const char *arg, int value, /* No-op. Used by the driver and passed to us because it starts with f. */ break; + case OPT_Wuninitialized: + /* Also turn on maybe uninitialized warning. */ + warn_maybe_uninitialized = value; + break; + default: /* If the flag was handled in a standard way, assume the lack of processing here is intentional. */ @@ -2274,6 +2315,7 @@ set_Wextra (int setting) warn_uninitialized = 0; else if (warn_uninitialized != 1) warn_uninitialized = 2; + warn_maybe_uninitialized = setting; } /* Used to set the level of strict aliasing warnings, @@ -2489,6 +2531,8 @@ enable_warning_as_error (const char *arg, int value, unsigned int lang_mask) && cl_options[option_index].flag_var && kind == DK_ERROR) *(int *) cl_options[option_index].flag_var = 1; + if (option_index == OPT_Wuninitialized) + enable_warning_as_error ("maybe-uninitialized", value, lang_mask); } free (new_option); } |