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authorUlrich Drepper <drepper@redhat.com>1997-08-24 10:55:18 +0000
committerUlrich Drepper <drepper@redhat.com>1997-08-24 10:55:18 +0000
commitf41c80910d631bacdaf39ec6d11272db79c59d38 (patch)
tree26b93c7b36e05eb08892aa730788c8f772efe2e3 /sysdeps/sparc/sparc32/divrem.m4
parent40a55d2054ef9d9085c4e6b0157c5d30608736fc (diff)
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Update.
1997-08-24 12:24  Ulrich Drepper  <drepper@cygnus.com>

	* configure.in (INSTALL): Quote `$'.

	* libc.map: Add __xpg_basename.

	* csu/Makefile (initfini.s): Disable optimization.

	* elf/dl-deps.c: Implement handling of DL_FILTER.

	* elf/dl-load.c (_dl_init_paths): Add error check.

	* intl/finddomain.c (_nl_find_domain): Correct comment.
	* intl/localealias.c: Include <bits/libc-lock.h> not <libc-lock.h>.

	* libio/stdio.h: Make {,v}snprintf available if __USE_BSD.
	Change extern inline functions to work correctly in C++.

	* locale/iso-4217.def: Update for more recent ISO 4217 version.

	* locale/loadlocale.c (_nl_load_locale): Add cast.

	* manual/message.texi: Finish gettext section.

	* posix/getopt_init.c: Don't use relative #include path.
	(__getopt_clean_environment): Change function to take pointer to
	environment as argument.  Optimize generation of test string a bit.
	* sysdeps/unix/sysv/linux/init-first.c: Call __getopt_clean_environment
	with additional argument.

	* poisx/glob.c: Add prototype for next_brace_sub.

	* sysdeps/generic/dl-sysdep.c: Recognize AT_BASE value on auxiliary
	vector.

	* sysdeps/i386/dl-machine.h (elf_machine_load_address): Rewrite
	to not generate relocation entry.  Suggested by Richard Henderson.
	(ELF_MACHINE_BEFORE_RTLD_RELOC): Removed.
	(elf_machine_runtime_setup): Add .aligns.

	* sysdeps/i386/fpu/fraiseexcpt.c: Add volatile to asms.

	* sysdeps/i386/fpu/bits/mathinline.h: Partially undo change of
	1997-08-14 03:14.  gcc 2.7.2* is really broken in some aspects.

	* sysdeps/standalone/i386/i386.h: Clean up asm statements a bit.
	* sysdeps/standalone/i960/i960ca.h: Likewise.

1997-08-22 19:04  Richard Henderson  <rth@cygnus.com>

	* elf/rtld.c (_dl_start): Init _dl_rtld_map.l_opencount due to
	undocumented test addition in _dl_map_object.

	Support ET_EXEC versions of ld.so, for debugging at least:

	* elf/dl-load.c (_dl_map_object): Add_name_to_object could get
	called despite the DT_SONAME != NULL test, segfaulting.  Simplify
	the code here as well.
	* elf/dl-lookup.c (do_lookup): Skip objects with no symtab.
	(_dl_setup_hash): Likewise for hash tables.
	* elf/dl-version.c (_dl_check_map_versions): Likewise for strtabs.
	* elf/rtld.c (_dl_start): Likewise for rpath.
	(_dl_rtld_libname2): New variable.
	(dl_main): Use it to add an soname for ourselves when we don't have
	one of our own.  Base it on the target's .interp.
	(dl_main): Again, skip printing of objects that don't have strtabs.

	Sparc 32 merge:

	* elf/dl-runtime.c (ELF_FIXUP_RETURN_VALUE): Provide default value.
	(fixup): Simplify code.  Use ELF_FIXUP_RETURN_VALUE.
	(profile_fixup): Likewise, though this still needs fixing for
	Sparc32 and PPC.
	* sysdeps/powerpc/dl-machine.h: Transmute ELF_FIXUP_RETURNS_ADDRESS
	to ELF_FIXUP_RETURN_VALUE.

	* sysdeps/sparc/sparc32/dl-machine.h: Implement lazy relocation.
	Fix up _dl_start_user to handle _dl_skip_args properly.
	Use _dl_hwcap to determine if "flush" is available/needed.

	* sysdeps/sparc/configure.in: Remove.  It doesn't actually do
	anything anymore, and what it did do is done somewhere else.
	* sysdeps/sparc/configure: Likewise.

	* sysdeps/sparc/fpu/bits/mathdef.h (FP_ILOGB0, FP_ILOGBNAN): New.

	* sysdeps/sparc/fpu/fraiseexcpt.c: Rearrange for smaller code.

	* sysdeps/sparc/sparc32/Makefile: Fix sparc->sparc/sparc32 bits
	in divrem expansions.

	* sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h (END, LOC): New
	definitions for assembly syntax differences.

	* sysdeps/sparc/sparc32/__longjmp.S: %g6,%g7 are reserved to the
	"system".  Use %g2,%g3 instead.  Use new local label macro.
	* sysdeps/sparc/sparc32/add_n.S: Use <sysdep.h> and ENTRY, END,
	and LOC for proper assembly headers/footers.
	* sysdeps/sparc/sparc32/addmul_1.S: Likewise.
	* sysdeps/sparc/sparc32/alloca.S: Likewise.
	* sysdeps/sparc/sparc32/dotmul.S: Likewise.
	* sysdeps/sparc/sparc32/lshift.S: Likewise.
	* sysdeps/sparc/sparc32/mul_1.S: Likewise.
	* sysdeps/sparc/sparc32/rshift.S: Likewise.
	* sysdeps/sparc/sparc32/sparcv8/addmul_1.S: Likewise.
	* sysdeps/sparc/sparc32/sparcv8/mul_1.S: Likewise.
	* sysdeps/sparc/sparc32/sparcv8/submul_1.S: Likewise.
	* sysdeps/sparc/sparc32/sparcv8/udiv_qrnnd.S: Likewise.
	* sysdeps/sparc/sparc32/sub_n.S: Likewise.
	* sysdeps/sparc/sparc32/submul_1.S: Likewise.
	* sysdeps/sparc/sparc32/udiv_qrnnd.S: Likewise.
	* sysdeps/sparc/sparc32/umul.S: Likewise.
	* sysdeps/sparc/sparc32/divrem.m4: Likewise.
	* sysdeps/sparc/sparc32/rem.S: Regenerate.
	* sysdeps/sparc/sparc32/sdiv.S: Regenerate.
	* sysdeps/sparc/sparc32/udiv.S: Regenerate.
	* sysdeps/sparc/sparc32/urem.S: Regenerate.

	* sysdeps/sparc/sparc32/sparcv8/dotmul.S: New file.
	* sysdeps/sparc/sparc32/sparcv8/rem.S: New file.
	* sysdeps/sparc/sparc32/sparcv8/sdiv.S: New file.
	* sysdeps/sparc/sparc32/sparcv8/udiv.S: New file.
	* sysdeps/sparc/sparc32/sparcv8/umul.S: New file.
	* sysdeps/sparc/sparc32/sparcv8/urem.S: New file.

	* sysdeps/sparc/sparc32/bsd-_setjmp.S: Dike out.
	* sysdeps/sparc/sparc32/bsd-setjmp.S: Likewise.
	* sysdeps/sparc/sparc32/setjmp.S: Add _setjmp and setjmp entry points.

	* sysdeps/unix/sysv/linux/sparc/sparc32/__sigtrampoline.S:
	Clean up PIC code.

	* sysdeps/sparc/sparc32/elf/start.S: New file, slightly modified
	from the sparc64 version.
	* sysdeps/sparc/sparc32/elf/start.c: Removed.

	* sysdeps/unix/sysv/linux/sparc/sparc32/init-first.h: Rewrite in
	assembly based on the sparc64 version.

	* sysdeps/sparc/sparc32/fpu/bits/fenv.h: Duh.  Use proper syntax
	for manipulating %fsr.
	* sysdeps/sparc/sparc32/fpu/fpu_control.h: Make IEEE conformance
	be the default.

	* elf/elf.h (HWCAP_SPARC_*): New definitions.
	* elf/rtld.c (_dl_hwcap): New variable.
	* sysdeps/generic/dl-sysdep.c (_dl_sysdep_start): Record AT_HWCAP.

	* sysdeps/unix/sysv/linux/sparc/sparc32/getpagesize.c: New file.
	Attempt to get hold of the page size based on what we might have
	been told at startup time in _dl_pagesize.  This will be obsolete
	when I finish the kernel hooks for a proper sysconf(), stay tuned.

	Sparc 64 merge:

	* sysdeps/sparc/sparc64/dl-machine.h (ELF_FIXUP_RETURN_VALUE): New.
	Figure out the right thing to return based on the .plt format.

	* sysdeps/sparc/sparc64/fpu/fpu_control.h: Update comment.

	* sysdeps/unix/sysv/linux/sparc/sparc64/bits/types.h (__dev_t):
	Should have been 64-bits wide.

	* sysdeps/unix/sysv/linux/sparc/sparc64/init-first.h: sll->sllx,
	optimize for branch delay slot usage.

1997-08-22  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* csu/Makefile ($(objpfx)crt%.o): Fix a missing *.so -> *.os
	change.

1997-08-20  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* math/libm-test.c (identities): Change epsilon.

	* sysdeps/i386/fpu/bits/mathinline.h: Correct arguments to fabs,
	fabsf, fabsl, __fabsl.

	* sysdeps/libm-i387/e_remainderl.S: Pop extra value from FPU stack.
	* sysdeps/libm-ieee754/s_csinhl.c: Include <fenv.h>.
Diffstat (limited to 'sysdeps/sparc/sparc32/divrem.m4')
-rw-r--r--sysdeps/sparc/sparc32/divrem.m462
1 files changed, 28 insertions, 34 deletions
diff --git a/sysdeps/sparc/sparc32/divrem.m4 b/sysdeps/sparc/sparc32/divrem.m4
index 665abf11ae..30d532ad77 100644
--- a/sysdeps/sparc/sparc32/divrem.m4
+++ b/sysdeps/sparc/sparc32/divrem.m4
@@ -47,8 +47,8 @@ define(V, `%o5')dnl
 dnl
 dnl m4 reminder: ifelse(a,b,c,d) => if a is b, then c, else d
 define(T, `%g1')dnl
-define(SC, `%g7')dnl
-ifelse(S, `true', `define(SIGN, `%g6')')dnl
+define(SC, `%g2')dnl
+ifelse(S, `true', `define(SIGN, `%g3')')dnl
 
 dnl
 dnl This is the recursive definition for developing quotient digits.
@@ -65,7 +65,7 @@ dnl modified to reflect the output R.
 dnl
 define(DEVELOP_QUOTIENT_BITS,
 `	! depth $1, accumulated bits $2
-	bl	L.$1.eval(2**N+$2)
+	bl	LOC($1.eval(2**N+$2))
 	srl	V,1,V
 	! remainder is positive
 	subcc	R,V,R
@@ -73,7 +73,7 @@ define(DEVELOP_QUOTIENT_BITS,
 	`	b	9f
 		add	Q, ($2*2+1), Q
 	', `	DEVELOP_QUOTIENT_BITS(incr($1), `eval(2*$2+1)')')
-L.$1.eval(2**N+$2):
+LOC($1.eval(2**N+$2)):
 	! remainder is negative
 	addcc	R,V,R
 	ifelse($1, N,
@@ -82,18 +82,10 @@ L.$1.eval(2**N+$2):
 	', `	DEVELOP_QUOTIENT_BITS(incr($1), `eval(2*$2-1)')')
 	ifelse($1, 1, `9:')')dnl
 
-#include "sysdep.h"
-#ifdef __linux__
-#include <asm/traps.h>
-#else
-#ifdef __svr4__
+#include <sysdep.h>
 #include <sys/trap.h>
-#else
-#include <machine/trap.h>
-#endif
-#endif
 
-FUNC(NAME)
+ENTRY(NAME)
 ifelse(S, `true',
 `	! compute sign of result; if neither is negative, no problem
 	orcc	divisor, dividend, %g0	! either negative?
@@ -124,11 +116,11 @@ ifelse(OP, `div',
 
 1:
 	cmp	R, V			! if divisor exceeds dividend, done
-	blu	Lgot_result		! (and algorithm fails otherwise)
+	blu	LOC(got_result)		! (and algorithm fails otherwise)
 	clr	Q
 	sethi	%hi(1 << (WORDSIZE - TOPBITS - 1)), T
 	cmp	R, T
-	blu	Lnot_really_big
+	blu	LOC(not_really_big)
 	clr	ITER
 
 	! `Here the dividend is >= 2**(31-N) or so.  We must be careful here,
@@ -146,7 +138,7 @@ ifelse(OP, `div',
 
 	! Now compute SC.
 	2:	addcc	V, V, V
-		bcc	Lnot_too_big
+		bcc	LOC(not_too_big)
 		add	SC, 1, SC
 
 		! We get here if the divisor overflowed while shifting.
@@ -155,14 +147,14 @@ ifelse(OP, `div',
 		sll	T, TOPBITS, T	! high order bit
 		srl	V, 1, V		! rest of V
 		add	V, T, V
-		b	Ldo_single_div
+		b	LOC(do_single_div)
 		sub	SC, 1, SC
 
-	Lnot_too_big:
+	LOC(not_too_big):
 	3:	cmp	V, R
 		blu	2b
 		nop
-		be	Ldo_single_div
+		be	LOC(do_single_div)
 		nop
 	/* NB: these are commented out in the V8-Sparc manual as well */
 	/* (I do not understand this) */
@@ -177,15 +169,15 @@ ifelse(OP, `div',
 	! order bit set in the first step, just falling into the regular
 	! division loop will mess up the first time around.
 	! So we unroll slightly...
-	Ldo_single_div:
+	LOC(do_single_div):
 		subcc	SC, 1, SC
-		bl	Lend_regular_divide
+		bl	LOC(end_regular_divide)
 		nop
 		sub	R, V, R
 		mov	1, Q
-		b	Lend_single_divloop
+		b	LOC(end_single_divloop)
 		nop
-	Lsingle_divloop:
+	LOC(single_divloop):
 		sll	Q, 1, Q
 		bl	1f
 		srl	V, 1, V
@@ -197,37 +189,37 @@ ifelse(OP, `div',
 		add	R, V, R
 		sub	Q, 1, Q
 	2:
-	Lend_single_divloop:
+	LOC(end_single_divloop):
 		subcc	SC, 1, SC
-		bge	Lsingle_divloop
+		bge	LOC(single_divloop)
 		tst	R
-		b,a	Lend_regular_divide
+		b,a	LOC(end_regular_divide)
 
-Lnot_really_big:
+LOC(not_really_big):
 1:
 	sll	V, N, V
 	cmp	V, R
 	bleu	1b
 	addcc	ITER, 1, ITER
-	be	Lgot_result
+	be	LOC(got_result)
 	sub	ITER, 1, ITER
 
 	tst	R	! set up for initial iteration
-Ldivloop:
+LOC(divloop):
 	sll	Q, N, Q
 	DEVELOP_QUOTIENT_BITS(1, 0)
-Lend_regular_divide:
+LOC(end_regular_divide):
 	subcc	ITER, 1, ITER
-	bge	Ldivloop
+	bge	LOC(divloop)
 	tst	R
-	bl,a	Lgot_result
+	bl,a	LOC(got_result)
 	! non-restoring fixup here (one instruction only!)
 ifelse(OP, `div',
 `	sub	Q, 1, Q
 ', `	add	R, divisor, R
 ')
 
-Lgot_result:
+LOC(got_result):
 ifelse(S, `true',
 `	! check to see if answer should be < 0
 	tst	SIGN
@@ -236,3 +228,5 @@ ifelse(S, `true',
 1:')
 	retl
 	ifelse(OP, `div', `mov Q, %o0', `mov R, %o0')
+
+END(NAME)