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HDFFV-10398 merge from develop improve CMake code

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This commit is contained in:
Allen Byrne
2018-01-30 16:30:17 -06:00
parent edb6fd0cf9
commit 16e649fa0d
26 changed files with 205 additions and 259 deletions
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155
config/cmake/ConversionTests.c
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@@ -9,12 +9,23 @@
* If you do not have access to either file, you may request a copy from *
* help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
#if defined(__has_attribute)
#if __has_attribute(no_sanitize)
#define HDF_NO_UBSAN __attribute__((no_sanitize("undefined")))
#else
#define HDF_NO_UBSAN
#endif
#else
#define HDF_NO_UBSAN
#endif
#ifdef H5_LDOUBLE_TO_LONG_SPECIAL_TEST
#include <string.h>
#include <stdlib.h>
int main(void)
int main(void) HDF_NO_UBSAN
{
long double ld = 20041683600089727.779961L;
long ll;
@@ -24,44 +35,44 @@ int main(void)
int ret = 1;
if(sizeof(long double) == 16 && sizeof(long) == 8) {
/*make sure the long double type has 16 bytes in size and
* 11 bits of exponent. If it is,
*the bit sequence should be like below. It's not
*a decent way to check but this info isn't available. */
memcpy(s, &ld, 16);
if(s[0]==0x43 && s[1]==0x51 && s[2]==0xcc && s[3]==0xf3 &&
s[4]==0x85 && s[5]==0xeb && s[6]==0xc8 && s[7]==0xa0 &&
s[8]==0xbf && s[9]==0xcc && s[10]==0x2a && s[11]==0x3c) {
/*make sure the long double type has 16 bytes in size and
* 11 bits of exponent. If it is,
*the bit sequence should be like below. It's not
*a decent way to check but this info isn't available. */
memcpy(s, &ld, 16);
if(s[0]==0x43 && s[1]==0x51 && s[2]==0xcc && s[3]==0xf3 &&
s[4]==0x85 && s[5]==0xeb && s[6]==0xc8 && s[7]==0xa0 &&
s[8]==0xbf && s[9]==0xcc && s[10]==0x2a && s[11]==0x3c) {
/* Assign the hexadecimal value of long double type. */
s[0]=0x43; s[1]=0x51; s[2]=0xcc; s[3]=0xf3;
s[4]=0x85; s[5]=0xeb; s[6]=0xc8; s[7]=0xa0;
s[8]=0xbf; s[9]=0xcc; s[10]=0x2a; s[11]=0x3c;
s[12]=0x3d; s[13]=0x85; s[14]=0x56; s[15]=0x20;
/* Assign the hexadecimal value of long double type. */
s[0]=0x43; s[1]=0x51; s[2]=0xcc; s[3]=0xf3;
s[4]=0x85; s[5]=0xeb; s[6]=0xc8; s[7]=0xa0;
s[8]=0xbf; s[9]=0xcc; s[10]=0x2a; s[11]=0x3c;
s[12]=0x3d; s[13]=0x85; s[14]=0x56; s[15]=0x20;
memcpy(&ld, s, 16);
memcpy(&ld, s, 16);
ll = (long)ld;
memcpy(s2, &ll, 8);
ll = (long)ld;
memcpy(s2, &ll, 8);
/* The library's algorithm converts it to 0x 00 47 33 ce 17 af 22 82
* and gets wrong value 20041683600089730 on the IBM Power6 Linux.
* But the IBM Power6 Linux converts it to 0x00 47 33 ce 17 af 22 7f
* and gets the correct value 20041683600089727. It uses some special
* algorithm. We're going to define the macro and skip the test until
* we can figure out how they do it. */
if(s2[0]==0x00 && s2[1]==0x47 && s2[2]==0x33 && s2[3]==0xce &&
s2[4]==0x17 && s2[5]==0xaf && s2[6]==0x22 && s2[7]==0x7f)
ret = 0;
/* The library's algorithm converts it to 0x 00 47 33 ce 17 af 22 82
* and gets wrong value 20041683600089730 on the IBM Power6 Linux.
* But the IBM Power6 Linux converts it to 0x00 47 33 ce 17 af 22 7f
* and gets the correct value 20041683600089727. It uses some special
* algorithm. We're going to define the macro and skip the test until
* we can figure out how they do it. */
if(s2[0]==0x00 && s2[1]==0x47 && s2[2]==0x33 && s2[3]==0xce &&
s2[4]==0x17 && s2[5]==0xaf && s2[6]==0x22 && s2[7]==0x7f)
ret = 0;
ull = (unsigned long)ld;
memcpy(s2, &ull, 8);
ull = (unsigned long)ld;
memcpy(s2, &ull, 8);
/* The unsigned long is the same as signed long. */
if(s2[0]==0x00 && s2[1]==0x47 && s2[2]==0x33 && s2[3]==0xce &&
s2[4]==0x17 && s2[5]==0xaf && s2[6]==0x22 && s2[7]==0x7f)
ret = 0;
}
/* The unsigned long is the same as signed long. */
if(s2[0]==0x00 && s2[1]==0x47 && s2[2]==0x33 && s2[3]==0xce &&
s2[4]==0x17 && s2[5]==0xaf && s2[6]==0x22 && s2[7]==0x7f)
ret = 0;
}
}
done:
@@ -75,7 +86,7 @@ done:
#include <string.h>
#include <stdlib.h>
int main(void)
int main(void) HDF_NO_UBSAN
{
long double ld;
long ll;
@@ -86,46 +97,46 @@ int main(void)
/*Determine if long double has 16 byte in size, 11 bit exponent, and
*the bias is 0x3ff */
if(sizeof(long double) == 16) {
ld = 1.0L;
memcpy(s, &ld, 16);
if(s[0]==0x3f && s[1]==0xf0 && s[2]==0x00 && s[3]==0x00 &&
s[4]==0x00 && s[5]==0x00 && s[6]==0x00 && s[7]==0x00)
flag = 1;
ld = 1.0L;
memcpy(s, &ld, 16);
if(s[0]==0x3f && s[1]==0xf0 && s[2]==0x00 && s[3]==0x00 &&
s[4]==0x00 && s[5]==0x00 && s[6]==0x00 && s[7]==0x00)
flag = 1;
}
if(flag==1 && sizeof(long)==8) {
ll = 0x003fffffffffffffL;
ld = (long double)ll;
memcpy(s, &ld, 16);
/* The library converts the value to 0x434fffffffffffff8000000000000000.
* In decimal it is 18014398509481982.000000, one value short of the original.
* The IBM Power6 Linux converts it to 0x4350000000000000bff0000000000000.
* The value is correct in decimal. It uses some special
* algorithm. We're going to define the macro and skip the test until
* we can figure out how they do it. */
if(s[0]==0x43 && s[1]==0x50 && s[2]==0x00 && s[3]==0x00 &&
s[4]==0x00 && s[5]==0x00 && s[6]==0x00 && s[7]==0x00 &&
s[8]==0xbf && s[9]==0xf0 && s[10]==0x00 && s[11]==0x00 &&
s[12]==0x00 && s[13]==0x00 && s[14]==0x00 && s[15]==0x00)
ret = 0;
ll = 0x003fffffffffffffL;
ld = (long double)ll;
memcpy(s, &ld, 16);
/* The library converts the value to 0x434fffffffffffff8000000000000000.
* In decimal it is 18014398509481982.000000, one value short of the original.
* The IBM Power6 Linux converts it to 0x4350000000000000bff0000000000000.
* The value is correct in decimal. It uses some special
* algorithm. We're going to define the macro and skip the test until
* we can figure out how they do it. */
if(s[0]==0x43 && s[1]==0x50 && s[2]==0x00 && s[3]==0x00 &&
s[4]==0x00 && s[5]==0x00 && s[6]==0x00 && s[7]==0x00 &&
s[8]==0xbf && s[9]==0xf0 && s[10]==0x00 && s[11]==0x00 &&
s[12]==0x00 && s[13]==0x00 && s[14]==0x00 && s[15]==0x00)
ret = 0;
}
if(flag==1 && sizeof(unsigned long)==8) {
ull = 0xffffffffffffffffUL;
ld = (long double)ull;
memcpy(s, &ld, 16);
/* Use a different value from signed long to test. The problem is the same
* for both long and unsigned long. The value is 18446744073709551615.
* The library converts the value to 0x43effffffffffffffe000000000000000.
* In decimal it's 18446744073709548544.000000, very different from the original.
* The IBM Power6 Linux converts it to 0x43f0000000000000bff0000000000000.
* The value is correct in decimal. It uses some special
* algorithm. We're going to define the macro and skip the test until
* we can figure out how they do it. */
if(s[0]==0x43 && s[1]==0xf0 && s[2]==0x00 && s[3]==0x00 &&
s[4]==0x00 && s[5]==0x00 && s[6]==0x00 && s[7]==0x00 &&
s[8]==0xbf && s[9]==0xf0 && s[10]==0x00 && s[11]==0x00 &&
s[12]==0x00 && s[13]==0x00 && s[14]==0x00 && s[15]==0x00)
ret = 0;
ull = 0xffffffffffffffffUL;
ld = (long double)ull;
memcpy(s, &ld, 16);
/* Use a different value from signed long to test. The problem is the same
* for both long and unsigned long. The value is 18446744073709551615.
* The library converts the value to 0x43effffffffffffffe000000000000000.
* In decimal it's 18446744073709548544.000000, very different from the original.
* The IBM Power6 Linux converts it to 0x43f0000000000000bff0000000000000.
* The value is correct in decimal. It uses some special
* algorithm. We're going to define the macro and skip the test until
* we can figure out how they do it. */
if(s[0]==0x43 && s[1]==0xf0 && s[2]==0x00 && s[3]==0x00 &&
s[4]==0x00 && s[5]==0x00 && s[6]==0x00 && s[7]==0x00 &&
s[8]==0xbf && s[9]==0xf0 && s[10]==0x00 && s[11]==0x00 &&
s[12]==0x00 && s[13]==0x00 && s[14]==0x00 && s[15]==0x00)
ret = 0;
}
done:
exit(ret);
@@ -138,7 +149,7 @@ done:
#include <string.h>
#include <stdlib.h>
int main(void)
int main(void) HDF_NO_UBSAN
{
long double ld = 20041683600089727.779961L;
long long ll;
@@ -181,7 +192,7 @@ done:
#include <string.h>
#include <stdlib.h>
int main(void)
int main(void) HDF_NO_UBSAN
{
long double ld;
long long ll;
@@ -243,7 +254,7 @@ int FC_DUMMY_MAIN()
#endif
#endif
int
main ()
main () HDF_NO_UBSAN
{
char *chp = "beefs";