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| author | Luc Van Oostenryck <luc.vanoostenryck@gmail.com> | 2017-09-13 08:52:18 +0200 |
|---|---|---|
| committer | Luc Van Oostenryck <luc.vanoostenryck@gmail.com> | 2018-01-03 02:52:20 +0100 |
| commit | f4de73d6094288e6e41e9121fd11622f75a19c6a (patch) | |
| tree | ca8fdcd00360c80ab6c1791c7e8f5b02d7589855 | |
| parent | 1e1a172fe5c7156f683b88c04466f0312525e6a0 (diff) | |
| download | sparse-dev-f4de73d6094288e6e41e9121fd11622f75a19c6a.tar.gz | |
teach sparse about '-fmax-warnings'
Currently, sparse stops to emit warnings after the 100th.
This is, of course, to avoid to throw lots of warnings if the
source file has lots of problems but sometimes we want to see
all warnings & errors.
For example, it's useful when testing a new version of
sparse on the kernel since it has a few files with more
than 100 warnings (and so a bad change will be undetected
if it affects warnings only after the 100th).
Let parse the '-fmax-warnings=N' option and limit the
number of warnings accordingly.
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
| -rw-r--r-- | lib.c | 14 | ||||
| -rw-r--r-- | lib.h | 1 | ||||
| -rw-r--r-- | sparse.1 | 6 |
3 files changed, 18 insertions, 3 deletions
@@ -115,7 +115,7 @@ static void do_warn(const char *type, struct position pos, const char * fmt, va_ name, pos.line, pos.pos, type, buffer); } -static int max_warnings = 100; +unsigned int fmax_warnings = 100; static int show_info = 1; void info(struct position pos, const char * fmt, ...) @@ -160,12 +160,12 @@ void warning(struct position pos, const char * fmt, ...) return; } - if (!max_warnings || has_error) { + if (!fmax_warnings || has_error) { show_info = 0; return; } - if (!--max_warnings) { + if (!--fmax_warnings) { show_info = 0; fmt = "too many warnings"; } @@ -611,6 +611,7 @@ static int opt_##NAME(const char *arg, const char *opt, TYPE *ptr, int flag) \ } OPT_NUMERIC(ullong, unsigned long long, strtoull) +OPT_NUMERIC(uint, unsigned int, strtoul) static char **handle_switch_o(char *arg, char **next) @@ -869,8 +870,15 @@ static int handle_fmemcpy_max_count(const char *arg, const char *opt, const stru return 1; } +static int handle_fmax_warnings(const char *arg, const char *opt, const struct flag *flag, int options) +{ + opt_uint(arg, opt, &fmax_warnings, OPTNUM_UNLIMITED); + return 1; +} + static struct flag fflags[] = { { "dump-ir", NULL, handle_fdump_ir }, + { "max-warnings=", NULL, handle_fmax_warnings }, { "mem-report", &fmem_report }, { "memcpy-max-count=", NULL, handle_fmemcpy_max_count }, { "tabstop=", NULL, handle_ftabstop }, @@ -167,6 +167,7 @@ extern int dump_macro_defs; extern int dbg_entry; extern int dbg_dead; +extern unsigned int fmax_warnings; extern int fmem_report; extern unsigned long fdump_ir; extern unsigned long long fmemcpy_max_count; @@ -20,6 +20,12 @@ off those warnings, pass the negation of the associated warning option, . .SH WARNING OPTIONS .TP +.B \-fmax-warnings=COUNT +Set the maximum number of displayed warnings to COUNT, which should be +a numerical value or 'unlimited'. +The default limit is 100. +. +.TP .B \-Wsparse\-all Turn on all sparse warnings, except for those explicitly disabled via \fB\-Wno\-something\fR. |