From 9fa9950784a0399b03473281de0109214552dbdf Mon Sep 17 00:00:00 2001 From: Denis Vlasenko Date: Thu, 19 Oct 2006 22:14:58 +0000 Subject: [PATCH] build system: check for ENABLE_, USE_ and SKIP_ (not only for CONFIG_) --- include/bb_config.h | 3 +++ scripts/basic/fixdep.c | 36 +++++++++++++++++++++--------------- 2 files changed, 24 insertions(+), 15 deletions(-) diff --git a/include/bb_config.h b/include/bb_config.h index 1f96026..152eb13 100644 --- a/include/bb_config.h +++ b/include/bb_config.h @@ -2,6 +2,9 @@ * which depend on other symbols, which themself are off. * Provide them here by hand. Need a better idea. */ +/* This is especially bad because it forces rebuild of + * everything whenever any of these options change */ + #ifndef ENABLE_FEATURE_GUNZIP_UNCOMPRESS #define ENABLE_FEATURE_GUNZIP_UNCOMPRESS 0 #define USE_FEATURE_GUNZIP_UNCOMPRESS(...) diff --git a/scripts/basic/fixdep.c b/scripts/basic/fixdep.c index cc2c654..df3446e 100644 --- a/scripts/basic/fixdep.c +++ b/scripts/basic/fixdep.c @@ -114,10 +114,12 @@ #include #include +/* bbox: not needed #define INT_CONF ntohl(0x434f4e46) #define INT_ONFI ntohl(0x4f4e4649) #define INT_NFIG ntohl(0x4e464947) #define INT_FIG_ ntohl(0x4649475f) +*/ char *target; char *depfile; @@ -222,30 +224,32 @@ void use_config(char *m, int slen) void parse_config_file(char *map, size_t len) { - int *end = (int *) (map + len); - /* start at +1, so that p can never be < map */ - int *m = (int *) map + 1; - char *p, *q; - - for (; m < end; m++) { - if (*m == INT_CONF) { p = (char *) m ; goto conf; } - if (*m == INT_ONFI) { p = (char *) m-1; goto conf; } - if (*m == INT_NFIG) { p = (char *) m-2; goto conf; } - if (*m == INT_FIG_) { p = (char *) m-3; goto conf; } + /* modified for bbox */ + char *end = map + len; + char *p = map; + char *q; + int off; + + for (; p < end; p++) { + if (!memcmp(p, "CONFIG_", 7)) goto conf7; + if (!memcmp(p, "ENABLE_", 7)) goto conf7; + if (!memcmp(p, "USE_", 4)) goto conf4; + if (!memcmp(p, "SKIP_", 5)) goto conf5; continue; + conf4: off = 4; goto conf; + conf5: off = 5; goto conf; + conf7: off = 7; conf: - if (p > map + len - 7) + if (p > map + len - off) continue; - if (memcmp(p, "CONFIG_", 7)) - continue; - for (q = p + 7; q < map + len; q++) { + for (q = p + off; q < map + len; q++) { if (!(isalnum(*q) || *q == '_')) goto found; } continue; found: - use_config(p+7, q-p-7); + use_config(p+off, q-p-off); } } @@ -366,6 +370,7 @@ void print_deps(void) void traps(void) { +/* bbox: not needed static char test[] __attribute__((aligned(sizeof(int)))) = "CONF"; if (*(int *)test != INT_CONF) { @@ -373,6 +378,7 @@ void traps(void) *(int *)test); exit(2); } +*/ } int main(int argc, char *argv[]) -- 2.7.4