d/freebsd-nq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Remove _ARCH_INDIRECT, it was the glue to enable having both hardware

Browse Source 
and software versions of the floating point code in libm.  The runtime
selection was done by reading the hw.floatingpoint sysctl via
__get_hw_float().
This commit is contained in:
Peter Wemm 2003-07-23 04:28:51 +00:00
parent d48084b9e5
commit 461d4da338
1 changed files with 0 additions and 67 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

67
sys/i386/include/asm.h
View File

@ -101,71 +101,4 @@
#define __FBSDID(s) /* nothing */
#endif /* not lint and not STRIP_FBSDID */
#ifdef _ARCH_INDIRECT
/*
* Generate code to select between the generic functions and _ARCH_INDIRECT
* specific ones.
* XXX nested __CONCATs don't work with non-ANSI cpp's.
*/
#define ANAME(x) CNAME(__CONCAT(__CONCAT(__,_ARCH_INDIRECT),x))
#define ASELNAME(x) CNAME(__CONCAT(__arch_select_,x))
#define AVECNAME(x) CNAME(__CONCAT(__arch_,x))
#define GNAME(x) CNAME(__CONCAT(__generic_,x))
/* Don't bother profiling this. */
#ifdef PIC
#define ARCH_DISPATCH(x) \
_START_ENTRY; \
.globl CNAME(x); .type CNAME(x),@function; CNAME(x): ; \
PIC_PROLOGUE; \
movl PIC_GOT(AVECNAME(x)),%eax; \
PIC_EPILOGUE; \
jmpl *(%eax)
#define ARCH_SELECT(x) _START_ENTRY; \
.type ASELNAME(x),@function; \
ASELNAME(x): \
PIC_PROLOGUE; \
call PIC_PLT(CNAME(__get_hw_float)); \
testl %eax,%eax; \
movl PIC_GOT(ANAME(x)),%eax; \
jne 8f; \
movl PIC_GOT(GNAME(x)),%eax; \
8: \
movl PIC_GOT(AVECNAME(x)),%edx; \
movl %eax,(%edx); \
PIC_EPILOGUE; \
jmpl *%eax
#else /* !PIC */
#define ARCH_DISPATCH(x) \
_START_ENTRY; \
.globl CNAME(x); .type CNAME(x),@function; CNAME(x): ; \
jmpl *AVECNAME(x)
#define ARCH_SELECT(x) _START_ENTRY; \
.type ASELNAME(x),@function; \
ASELNAME(x): \
call CNAME(__get_hw_float); \
testl %eax,%eax; \
movl $ANAME(x),%eax; \
jne 8f; \
movl $GNAME(x),%eax; \
8: \
movl %eax,AVECNAME(x); \
jmpl *%eax
#endif /* PIC */
#define ARCH_VECTOR(x) .data; .p2align 2; \
.globl AVECNAME(x); \
.type AVECNAME(x),@object; \
.size AVECNAME(x),4; \
AVECNAME(x): .long ASELNAME(x)
#undef _ENTRY
#define _ENTRY(x) ARCH_VECTOR(x); ARCH_SELECT(x); ARCH_DISPATCH(x); \
_START_ENTRY; \
.globl ANAME(x); .type ANAME(x),@function; ANAME(x):
#endif /* _ARCH_INDIRECT */
#endif /* !_MACHINE_ASM_H_ */