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author | Alistair Popple <alistair@popple.id.au> | 2014-08-14 18:47:49 +1000 |
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committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2014-08-15 13:03:08 +1000 |
commit | 39e53e483b186122db12712aca5dfb666e819729 (patch) | |
tree | 71d2402f8020b939c16151d5f29fd8823a825d3f /libc/test | |
parent | c0515b6361b03d18cffcbc358d0f6109cd684031 (diff) | |
download | skiboot-39e53e483b186122db12712aca5dfb666e819729.zip skiboot-39e53e483b186122db12712aca5dfb666e819729.tar.gz skiboot-39e53e483b186122db12712aca5dfb666e819729.tar.bz2 |
libc: Add mktime and gmtime_r
Both the FSP RTC and the upcoming IPMI RTC implementation need to
manipulate time in various ways. Rather than re-implementing slightly
different versions of the calculations twice lets implement some
standard library functions (with tests) and use those.
This patch adds mktime and gmtime_r to the libc.
Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'libc/test')
-rw-r--r-- | libc/test/Makefile.check | 22 | ||||
-rw-r--r-- | libc/test/run-time.c | 82 |
2 files changed, 104 insertions, 0 deletions
diff --git a/libc/test/Makefile.check b/libc/test/Makefile.check new file mode 100644 index 0000000..188b6b1 --- /dev/null +++ b/libc/test/Makefile.check @@ -0,0 +1,22 @@ +# -*-Makefile-*- +LIBC_TEST := libc/test/run-time + +check: $(LIBC_TEST:%=%-check) + +$(LIBC_TEST:%=%-check) : %-check: % + $(VALGRIND) $< + +$(LIBC_TEST) : % : %.c + $(HOSTCC) $(HOSTCFLAGS) -O0 -g -I include -I . -I libfdt -I libc/include -o $@ $< + +$(LIBC_TEST): % : %.d + +libc/test/%.d: libc/test/%.c + $(HOSTCC) $(HOSTCFLAGS) -I include -I . -I libfdt -I libc/include -M $< > $@ + +-include libc/test/*.d + +clean: libc-test-clean + +libc-test-clean: + $(RM) -f libc/test/*.[od] $(LIBC_TEST) diff --git a/libc/test/run-time.c b/libc/test/run-time.c new file mode 100644 index 0000000..95662f4 --- /dev/null +++ b/libc/test/run-time.c @@ -0,0 +1,82 @@ +#include "/usr/include/assert.h" +#include <stdio.h> +#include <time.h> + +#include "../time.c" + +#define MKTIME_TEST(Y,M,D,h,m,s,t) \ + tm.tm_year = Y; \ + tm.tm_mon = M; \ + tm.tm_mday = D; \ + tm.tm_hour = h; \ + tm.tm_min = m; \ + tm.tm_sec = s; \ + assert(mktime(&tm) == t); \ + assert(tm.tm_year == Y); \ + assert(tm.tm_mon == M); \ + assert(tm.tm_mday == D); \ + assert(tm.tm_hour == h); \ + assert(tm.tm_min == m); \ + assert(tm.tm_sec == s) + +#define GMTIME_TEST(Y,M,D,h,m,s,tv) \ + t = tv; \ + gmtime_r(&t, &tm); \ + assert(tm.tm_year == Y); \ + assert(tm.tm_mon == M); \ + assert(tm.tm_mday == D); \ + assert(tm.tm_hour == h); \ + assert(tm.tm_min == m); \ + assert(tm.tm_sec == s) + +#define TIME_TEST(Y,M,D,h,m,s,tv) \ + MKTIME_TEST(Y,M,D,h,m,s,tv); \ + GMTIME_TEST(Y,M,D,h,m,s,tv) + +int main(void) +{ + struct tm tm; + time_t t = 0; + uint32_t time; + + TIME_TEST(1970, 0, 1, 0, 0, 0, 0); + TIME_TEST(1971, 0, 1, 0, 0, 0, 365*SECS_PER_DAY); + TIME_TEST(1972, 0, 1, 0, 0, 0, 2*365*SECS_PER_DAY); + TIME_TEST(1972, 11, 31, 0, 0, 0, 3*365*SECS_PER_DAY); + TIME_TEST(1973, 0, 1, 0, 0, 0, (3*365+1)*SECS_PER_DAY); + TIME_TEST(2000, 11, 31, 0, 0, 0, 978220800); + TIME_TEST(2001, 0, 1, 0, 0, 0, 978307200); + TIME_TEST(2003, 11, 31, 0, 0, 0, 1072828800); + TIME_TEST(2004, 0, 1, 0, 0, 0, 1072828800+SECS_PER_DAY); + TIME_TEST(2004, 11, 29, 0, 0, 0, 1072828800+364*SECS_PER_DAY); + TIME_TEST(2004, 11, 30, 0, 0, 0, 1072828800+365*SECS_PER_DAY); + TIME_TEST(2004, 11, 31, 0, 0, 0, 1072828800+366*SECS_PER_DAY); + TIME_TEST(2004, 11, 31, 23, 59, 59, 1072828800+367*SECS_PER_DAY-1); + TIME_TEST(2100, 11, 31, 0, 0, 0, 4133894400); + TIME_TEST(2101, 0, 1, 0, 0, 0, 4133980800); + + /* Test the normalisation functionality of mktime */ + tm.tm_year = 2000; + tm.tm_mon = 1; + tm.tm_mday = 10; + tm.tm_hour = 5; + tm.tm_min = 32; + tm.tm_sec = 105; + mktime(&tm); + assert(tm.tm_year == 2000); + assert(tm.tm_mon == 1); + assert(tm.tm_mday == 10); + assert(tm.tm_hour == 5); + assert(tm.tm_min == 33); + assert(tm.tm_sec == 45); + tm.tm_sec += 366*24*60*60; + mktime(&tm); + assert(tm.tm_year == 2001); + assert(tm.tm_mon == 1); + assert(tm.tm_mday == 10); + assert(tm.tm_hour == 5); + assert(tm.tm_min == 33); + assert(tm.tm_sec == 45); + + return 0; +} |