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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/sdiv.S
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/sdiv.S')
-rw-r--r--sysdeps/sparc/sparc32/sdiv.S190
1 files changed, 92 insertions, 98 deletions
diff --git a/sysdeps/sparc/sparc32/sdiv.S b/sysdeps/sparc/sparc32/sdiv.S
index 02ed2e973c..4b325476d7 100644
--- a/sysdeps/sparc/sparc32/sdiv.S
+++ b/sysdeps/sparc/sparc32/sdiv.S
@@ -37,22 +37,14 @@
 
 
 
-#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
 
 ENTRY(.div)
 	! compute sign of result; if neither is negative, no problem
 	orcc	%o1, %o0, %g0	! either negative?
 	bge	2f			! no, go do the divide
-	xor	%o1, %o0, %g6	! compute sign in any case
+	xor	%o1, %o0, %g3	! compute sign in any case
 	tst	%o1
 	bge	1f
 	tst	%o0
@@ -76,11 +68,11 @@ ENTRY(.div)
 
 1:
 	cmp	%o3, %o5			! if %o1 exceeds %o0, done
-	blu	Lgot_result		! (and algorithm fails otherwise)
+	blu	LOC(got_result)		! (and algorithm fails otherwise)
 	clr	%o2
 	sethi	%hi(1 << (32 - 4 - 1)), %g1
 	cmp	%o3, %g1
-	blu	Lnot_really_big
+	blu	LOC(not_really_big)
 	clr	%o4
 
 	! Here the dividend is >= 2**(31-N) or so.  We must be careful here,
@@ -91,15 +83,15 @@ ENTRY(.div)
 	1:
 		cmp	%o5, %g1
 		bgeu	3f
-		mov	1, %g7
+		mov	1, %g2
 		sll	%o5, 4, %o5
 		b	1b
 		add	%o4, 1, %o4
 
-	! Now compute %g7.
+	! Now compute %g2.
 	2:	addcc	%o5, %o5, %o5
-		bcc	Lnot_too_big
-		add	%g7, 1, %g7
+		bcc	LOC(not_too_big)
+		add	%g2, 1, %g2
 
 		! We get here if the %o1 overflowed while shifting.
 		! This means that %o3 has the high-order bit set.
@@ -107,20 +99,20 @@ ENTRY(.div)
 		sll	%g1, 4, %g1	! high order bit
 		srl	%o5, 1, %o5		! rest of %o5
 		add	%o5, %g1, %o5
-		b	Ldo_single_div
-		sub	%g7, 1, %g7
+		b	LOC(do_single_div)
+		sub	%g2, 1, %g2
 
-	Lnot_too_big:
+	LOC(not_too_big):
 	3:	cmp	%o5, %o3
 		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) */
 	! %o5 > %o3: went too far: back up 1 step
 	!	srl	%o5, 1, %o5
-	!	dec	%g7
+	!	dec	%g2
 	! do single-bit divide steps
 	!
 	! We have to be careful here.  We know that %o3 >= %o5, so we can do the
@@ -129,15 +121,15 @@ ENTRY(.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:
-		subcc	%g7, 1, %g7
-		bl	Lend_regular_divide
+	LOC(do_single_div):
+		subcc	%g2, 1, %g2
+		bl	LOC(end_regular_divide)
 		nop
 		sub	%o3, %o5, %o3
 		mov	1, %o2
-		b	Lend_single_divloop
+		b	LOC(end_single_divloop)
 		nop
-	Lsingle_divloop:
+	LOC(single_divloop):
 		sll	%o2, 1, %o2
 		bl	1f
 		srl	%o5, 1, %o5
@@ -149,221 +141,223 @@ ENTRY(.div)
 		add	%o3, %o5, %o3
 		sub	%o2, 1, %o2
 	2:
-	Lend_single_divloop:
-		subcc	%g7, 1, %g7
-		bge	Lsingle_divloop
+	LOC(end_single_divloop):
+		subcc	%g2, 1, %g2
+		bge	LOC(single_divloop)
 		tst	%o3
-		b,a	Lend_regular_divide
+		b,a	LOC(end_regular_divide)
 
-Lnot_really_big:
+LOC(not_really_big):
 1:
 	sll	%o5, 4, %o5
 	cmp	%o5, %o3
 	bleu	1b
 	addcc	%o4, 1, %o4
-	be	Lgot_result
+	be	LOC(got_result)
 	sub	%o4, 1, %o4
 
 	tst	%o3	! set up for initial iteration
-Ldivloop:
+LOC(divloop):
 	sll	%o2, 4, %o2
 		! depth 1, accumulated bits 0
-	bl	L.1.16
+	bl	LOC(1.16)
 	srl	%o5,1,%o5
 	! remainder is positive
 	subcc	%o3,%o5,%o3
 			! depth 2, accumulated bits 1
-	bl	L.2.17
+	bl	LOC(2.17)
 	srl	%o5,1,%o5
 	! remainder is positive
 	subcc	%o3,%o5,%o3
 			! depth 3, accumulated bits 3
-	bl	L.3.19
+	bl	LOC(3.19)
 	srl	%o5,1,%o5
 	! remainder is positive
 	subcc	%o3,%o5,%o3
 			! depth 4, accumulated bits 7
-	bl	L.4.23
+	bl	LOC(4.23)
 	srl	%o5,1,%o5
 	! remainder is positive
 	subcc	%o3,%o5,%o3
 		b	9f
 		add	%o2, (7*2+1), %o2
-
-L.4.23:
+	
+LOC(4.23):
 	! remainder is negative
 	addcc	%o3,%o5,%o3
 		b	9f
 		add	%o2, (7*2-1), %o2
-
-
-L.3.19:
+	
+	
+LOC(3.19):
 	! remainder is negative
 	addcc	%o3,%o5,%o3
 			! depth 4, accumulated bits 5
-	bl	L.4.21
+	bl	LOC(4.21)
 	srl	%o5,1,%o5
 	! remainder is positive
 	subcc	%o3,%o5,%o3
 		b	9f
 		add	%o2, (5*2+1), %o2
-
-L.4.21:
+	
+LOC(4.21):
 	! remainder is negative
 	addcc	%o3,%o5,%o3
 		b	9f
 		add	%o2, (5*2-1), %o2
-
-
-
-L.2.17:
+	
+	
+	
+LOC(2.17):
 	! remainder is negative
 	addcc	%o3,%o5,%o3
 			! depth 3, accumulated bits 1
-	bl	L.3.17
+	bl	LOC(3.17)
 	srl	%o5,1,%o5
 	! remainder is positive
 	subcc	%o3,%o5,%o3
 			! depth 4, accumulated bits 3
-	bl	L.4.19
+	bl	LOC(4.19)
 	srl	%o5,1,%o5
 	! remainder is positive
 	subcc	%o3,%o5,%o3
 		b	9f
 		add	%o2, (3*2+1), %o2
-
-L.4.19:
+	
+LOC(4.19):
 	! remainder is negative
 	addcc	%o3,%o5,%o3
 		b	9f
 		add	%o2, (3*2-1), %o2
-
-
-L.3.17:
+	
+	
+LOC(3.17):
 	! remainder is negative
 	addcc	%o3,%o5,%o3
 			! depth 4, accumulated bits 1
-	bl	L.4.17
+	bl	LOC(4.17)
 	srl	%o5,1,%o5
 	! remainder is positive
 	subcc	%o3,%o5,%o3
 		b	9f
 		add	%o2, (1*2+1), %o2
-
-L.4.17:
+	
+LOC(4.17):
 	! remainder is negative
 	addcc	%o3,%o5,%o3
 		b	9f
 		add	%o2, (1*2-1), %o2
-
-
-
-
-L.1.16:
+	
+	
+	
+	
+LOC(1.16):
 	! remainder is negative
 	addcc	%o3,%o5,%o3
 			! depth 2, accumulated bits -1
-	bl	L.2.15
+	bl	LOC(2.15)
 	srl	%o5,1,%o5
 	! remainder is positive
 	subcc	%o3,%o5,%o3
 			! depth 3, accumulated bits -1
-	bl	L.3.15
+	bl	LOC(3.15)
 	srl	%o5,1,%o5
 	! remainder is positive
 	subcc	%o3,%o5,%o3
 			! depth 4, accumulated bits -1
-	bl	L.4.15
+	bl	LOC(4.15)
 	srl	%o5,1,%o5
 	! remainder is positive
 	subcc	%o3,%o5,%o3
 		b	9f
 		add	%o2, (-1*2+1), %o2
-
-L.4.15:
+	
+LOC(4.15):
 	! remainder is negative
 	addcc	%o3,%o5,%o3
 		b	9f
 		add	%o2, (-1*2-1), %o2
-
-
-L.3.15:
+	
+	
+LOC(3.15):
 	! remainder is negative
 	addcc	%o3,%o5,%o3
 			! depth 4, accumulated bits -3
-	bl	L.4.13
+	bl	LOC(4.13)
 	srl	%o5,1,%o5
 	! remainder is positive
 	subcc	%o3,%o5,%o3
 		b	9f
 		add	%o2, (-3*2+1), %o2
-
-L.4.13:
+	
+LOC(4.13):
 	! remainder is negative
 	addcc	%o3,%o5,%o3
 		b	9f
 		add	%o2, (-3*2-1), %o2
-
-
-
-L.2.15:
+	
+	
+	
+LOC(2.15):
 	! remainder is negative
 	addcc	%o3,%o5,%o3
 			! depth 3, accumulated bits -3
-	bl	L.3.13
+	bl	LOC(3.13)
 	srl	%o5,1,%o5
 	! remainder is positive
 	subcc	%o3,%o5,%o3
 			! depth 4, accumulated bits -5
-	bl	L.4.11
+	bl	LOC(4.11)
 	srl	%o5,1,%o5
 	! remainder is positive
 	subcc	%o3,%o5,%o3
 		b	9f
 		add	%o2, (-5*2+1), %o2
-
-L.4.11:
+	
+LOC(4.11):
 	! remainder is negative
 	addcc	%o3,%o5,%o3
 		b	9f
 		add	%o2, (-5*2-1), %o2
-
-
-L.3.13:
+	
+	
+LOC(3.13):
 	! remainder is negative
 	addcc	%o3,%o5,%o3
 			! depth 4, accumulated bits -7
-	bl	L.4.9
+	bl	LOC(4.9)
 	srl	%o5,1,%o5
 	! remainder is positive
 	subcc	%o3,%o5,%o3
 		b	9f
 		add	%o2, (-7*2+1), %o2
-
-L.4.9:
+	
+LOC(4.9):
 	! remainder is negative
 	addcc	%o3,%o5,%o3
 		b	9f
 		add	%o2, (-7*2-1), %o2
-
-
-
-
+	
+	
+	
+	
 	9:
-Lend_regular_divide:
+LOC(end_regular_divide):
 	subcc	%o4, 1, %o4
-	bge	Ldivloop
+	bge	LOC(divloop)
 	tst	%o3
-	bl,a	Lgot_result
+	bl,a	LOC(got_result)
 	! non-restoring fixup here (one instruction only!)
 	sub	%o2, 1, %o2
 
 
-Lgot_result:
+LOC(got_result):
 	! check to see if answer should be < 0
-	tst	%g6
+	tst	%g3
 	bl,a	1f
 	sub %g0, %o2, %o2
 1:
 	retl
 	mov %o2, %o0
+
+END(.div)