freebsd-dev/lib/libc
Robert Drehmel 7ea630865e Define `Sudden_Underflow' when compiling for the Alpha
architecture, mainly to avoid getting a SIGFPE signal sent
when calling strtod(3) with certain input.

The SIGFPE has been sent because the code was not aware that
a Gradual Underflow is handled in software via traps on the
Alpha architecture, but is not implemented in our Alpha kernel
layer.

With `Sudden_Underflow' defined, strtod(3) should not depend
on Gradual Underflow and adjust its calculations accordingly,
which means that other, more subtle errors than the sending of
SIGFPE could be solved by this.

Discussed with:	bde
PR:		alpha/12623
PR:		alpha/17032
PR:		alpha/43567
MFC after:	7 days
2002-11-14 17:06:01 +00:00
..
alpha Re-apply the previously backed-out commit that fixes the problem where 2002-10-31 23:05:20 +00:00
amd64 Re-apply the previously backed-out commit that fixes the problem where 2002-10-31 23:05:20 +00:00
compat-43 Assume __STDC__, remove non-__STDC__ code. 2002-05-28 17:03:12 +00:00
db Correct the headers needed to use dbopen(3) and friends. 2002-10-18 16:20:08 +00:00
gen Reset LogTag to NULL in closelog(3). This fixes mysterious crashes 2002-11-14 12:40:14 +00:00
gmon Initiate deorbit burn for the i386-only a.out related support. Moves are 2002-09-17 01:49:00 +00:00
i386 Re-apply the previously backed-out commit that fixes the problem where 2002-10-31 23:05:20 +00:00
ia64 o Fix _longjmp() to return 1 when the return value is given as 0. 2002-11-14 06:40:23 +00:00
include Argh, change declaration of two-dimensional array so that it actually 2002-11-13 21:55:22 +00:00
locale Add cross references to mbrtowc(3) and wcrtomb(3). 2002-11-10 11:14:58 +00:00
net query ip6.arpa then ip6.int for IPv6 reverse lookup. follows RFC3152. 2002-10-26 19:00:14 +00:00
nls Do not include <sys/syslimits.h> directly; it is not intended for general 2002-10-27 17:44:33 +00:00
posix1e Update acl.3 to xref getfacl(1) and setfacl(1), the recommended tools for 2002-11-08 15:01:28 +00:00
powerpc
quad
regex Add restrict type-qualifier. 2002-10-02 07:49:35 +00:00
rpc Cosmetics. 2002-10-29 15:00:10 +00:00
sparc64 Re-apply the previously backed-out commit that fixes the problem where 2002-10-31 23:05:20 +00:00
stdio bde points out that the LIBC_MAJOR macro doesn't exist and requests 2002-11-14 14:06:14 +00:00
stdlib Define `Sudden_Underflow' when compiling for the Alpha 2002-11-14 17:06:01 +00:00
stdtime Add cross-references to the wide character counterparts of these functions. 2002-10-15 10:11:53 +00:00
string Replace wcsstr() with an implementation based on strstr(), which is far 2002-10-24 02:53:45 +00:00
sys Given that we have 3 places to document UUID related information, 2002-11-11 00:29:01 +00:00
uuid Wrap function prototype declarations in __BEGIN_DECLS to do the right thing 2002-11-05 10:55:16 +00:00
xdr Removed duplicated MLINKS which make(1) recently started warning about. 2002-08-15 12:31:01 +00:00
yp
Makefile Zap the early-adopter transition aid before we get into serious 2002-10-11 22:38:17 +00:00
Makefile.inc Implement DCE 1.1 compliant UUID functions. Immediate use of these 2002-10-30 03:51:00 +00:00