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authorUlrich Drepper <drepper@redhat.com>1997-03-31 22:56:24 +0000
committerUlrich Drepper <drepper@redhat.com>1997-03-31 22:56:24 +0000
commit5929563ff20245bbaa1b3ca2f4bfcee623ac6fb5 (patch)
tree15b1ff0a40462018402078788148c0c99d188429 /sysdeps/i386/stpncpy.S
parent3075e0e37c0e7cc2e6eb518c409e0769d058ed4b (diff)
1997-04-01 00:37 Ulrich Drepper <drepper@cygnus.com> * math/Makefile: Prevent inlining for test-{float,double,longdouble}. * math/libm-test.c (initialize): Make strings unique and force values to memory. * posix/regex.c: Debug debugging code. * sysdeps/i386/asm-syntax.h: Define `L' macro to emit correct syntax for local label. * sysdeps/i386/add_n.S: Use correct local label syntax for the binary format. * sysdeps/i386/addmul_1.S: Likewise. * sysdeps/i386/lshift.S: Likewise. * sysdeps/i386/memchr.S: Likewise. * sysdeps/i386/memset.S: Likewise. * sysdeps/i386/mul_1.S: Likewise. * sysdeps/i386/rshift.S: Likewise. * sysdeps/i386/stpcpy.S: Likewise. * sysdeps/i386/stpncpy.S: Likewise. * sysdeps/i386/strchr.S: Likewise. * sysdeps/i386/strcspn.S: Likewise. * sysdeps/i386/strlen.S: Likewise. * sysdeps/i386/strpbrk.S: Likewise. * sysdeps/i386/strrchr.S: Likewise. * sysdeps/i386/strspn.S: Likewise. * sysdeps/i386/strtok.S: Likewise. * sysdeps/i386/sub_n.S: Likewise. * sysdeps/i386/submul_1.S: Likewise. * sysdeps/i386/i486/strcat.S: Likewise. * sysdeps/i386/i486/strlen.S: Likewise. * sysdeps/i386/i586/add_n.S: Likewise. * sysdeps/i386/i586/addmul_1.S: Likewise. * sysdeps/i386/i586/lshift.S: Likewise. * sysdeps/i386/i586/memset.S: Likewise. * sysdeps/i386/i586/mul_1.S: Likewise. * sysdeps/i386/i586/rshift.S: Likewise. * sysdeps/i386/i586/strchr.S: Likewise. * sysdeps/i386/i586/strlen.S: Likewise. * sysdeps/i386/i586/sub_n.S: Likewise. * sysdeps/i386/i586/submul_1.S: Likewise. * sysdeps/stub/s_log2l.c: Correct function name. * time/africa: Updated from ADO tzdata1997e. * time/aantarctica: Likewise. * time/asia: Likewise. * time/australia: Likewise. * time/europe: Likewise. * time/northamerica: Likewise. * time/southamerica: Likewise. * time/private.h: Updated from ADO tzcode1997d. * time/scheck.c: Likewise. 1997-03-31 12:42 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/linux/powerpc/Dist: Add kernel_*.h files. 1997-03-23 01:41 Geoff Keating <geoffk@ozemail.com.au> * sysdeps/powerpc/strlen.s: Rewrote for more speed. * string/tst-strlen.c: Also test various string alignments. 1997-03-19 06:11 Geoff Keating <geoffk@ozemail.com.au> * sysdeps/unix/sysv/linux/powerpc/statbuf.h: Removed. * sysdeps/unix/sysv/linux/powerpc/kernel_stat.h: Added. * sysdeps/powerpc/dl-machine.h (ELF_PREFERRED_ADDRESS): Assume program base address is 0x01800000 if we can't otherwise tell what it is. (elf_machine_rela): Replace `assertion failed' with real error messages. * sysdeps/powerpc/dl-machine.h: More comments, more GNU indenting. Put in extra parentheses to make explicit the relative precedence of + and >>. * sysdeps/powerpc/bsd-setjmp.S: Add `__setjmp' symbol so the tests pass. * sysdeps/powerpc/clone.S: Rewrite. Probably still doesn't work. * sysdeps/unix/sysv/linux/powerpc/sys/sysdep.h: Use .section "text" instead of .text. 1997-03-31 02:28 Ulrich Drepper <drepper@cygnus.com> * misc/tst-tsearch.c: Don't write to stderr, write to stdout instead. * inet/inet_ntoa.c (inet_ntoa): Complete rewrite. Now uses thread-specific memory in multi-threaded programs. * sysdeps/stub/s_exp2.c: New file. Stub version for exp2 function. * sysdeps/stub/s_exp2f.c: New file. * sysdeps/stub/s_exp2l.c: New file. Reported by a sun <asun@zoology.washington.edu>. * sysdeps/unix/sysv/linux/netatalk/atalk.h: Rename to... * sysdeps/unix/sysv/linux/netatalk/at.h: ...this. Suggested by a sun <asun@zoology.washington.edu>. 1997-03-30 14:53 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/linux/netinet/ip_icmp.h: Add former contents of <netinet/icmp.h>. Patch by a sun <asun@zoology.washington.edu>. * sysdeps/powerpc/strlen.S: Added.
Diffstat (limited to 'sysdeps/i386/stpncpy.S')
-rw-r--r--sysdeps/i386/stpncpy.S54
1 files changed, 27 insertions, 27 deletions
diff --git a/sysdeps/i386/stpncpy.S b/sysdeps/i386/stpncpy.S
index 96878fb79a..e0213082f8 100644
--- a/sysdeps/i386/stpncpy.S
+++ b/sysdeps/i386/stpncpy.S
@@ -1,7 +1,7 @@
-/* stpncpy -- copy no more then N bytes from SRC to DEST, returning the
- address of the terminating '\0' in DEST.
+/* copy no more then N bytes from SRC to DEST, returning the address of
+ the terminating '\0' in DEST.
For Intel 80x86, x>=3.
- Copyright (C) 1994, 1995, 1996 Free Software Foundation, Inc.
+ Copyright (C) 1994, 1995, 1996, 1997 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>
Some bug fixes by Alan Modra <Alan@SPRI.Levels.UniSA.Edu.Au>
@@ -45,98 +45,98 @@ ENTRY (__stpncpy)
subl %eax, %esi /* magic: reduce number of loop variants
to one using addressing mode */
- jmp L1 /* jump to loop "head" */
+ jmp L(1) /* jump to loop "head" */
ALIGN(4)
/* Four times unfolded loop with two loop counters. We get the
the third value (the source address) by using the index+base
addressing mode. */
-L2: movb (%eax,%esi), %dl /* load current char */
+L(2): movb (%eax,%esi), %dl /* load current char */
movb %dl, (%eax) /* and store it */
testb %dl, %dl /* was it NUL? */
- jz L7 /* yes, then exit */
+ jz L(7) /* yes, then exit */
movb 1(%eax,%esi), %dl /* load current char */
movb %dl, 1(%eax) /* and store it */
testb %dl, %dl /* was it NUL? */
- jz L6 /* yes, then exit */
+ jz L(6) /* yes, then exit */
movb 2(%eax,%esi), %dl /* load current char */
movb %dl, 2(%eax) /* and store it */
testb %dl, %dl /* was it NUL? */
- jz L5 /* yes, then exit */
+ jz L(5) /* yes, then exit */
movb 3(%eax,%esi), %dl /* load current char */
movb %dl, 3(%eax) /* and store it */
testb %dl, %dl /* was it NUL? */
- jz L4 /* yes, then exit */
+ jz L(4) /* yes, then exit */
addl $4, %eax /* increment loop counter for full round */
-L1: subl $4, %ecx /* still more than 4 bytes allowed? */
- jae L2 /* yes, then go to start of loop */
+L(1): subl $4, %ecx /* still more than 4 bytes allowed? */
+ jae L(2) /* yes, then go to start of loop */
/* The maximal remaining 15 bytes are not processed in a loop. */
addl $4, %ecx /* correct above subtraction */
- jz L9 /* maximal allowed char reached => go to end */
+ jz L(9) /* maximal allowed char reached => go to end */
movb (%eax,%esi), %dl /* load current char */
movb %dl, (%eax) /* and store it */
testb %dl, %dl /* was it NUL? */
- jz L3 /* yes, then exit */
+ jz L(3) /* yes, then exit */
incl %eax /* increment pointer */
decl %ecx /* decrement length counter */
- jz L9 /* no more allowed => exit */
+ jz L(9) /* no more allowed => exit */
movb (%eax,%esi), %dl /* load current char */
movb %dl, (%eax) /* and store it */
testb %dl, %dl /* was it NUL? */
- jz L3 /* yes, then exit */
+ jz L(3) /* yes, then exit */
incl %eax /* increment pointer */
decl %ecx /* decrement length counter */
- jz L9 /* no more allowed => exit */
+ jz L(9) /* no more allowed => exit */
movb (%eax,%esi), %dl /* load current char */
movb %dl, (%eax) /* and store it */
testb %dl, %dl /* was it NUL? */
- jz L3 /* yes, then exit */
+ jz L(3) /* yes, then exit */
incl %eax /* increment pointer */
- jmp L9 /* we don't have to test for counter underflow
+ jmp L(9) /* we don't have to test for counter underflow
because we know we had a most 3 bytes
remaining => exit */
/* When coming from the main loop we have to adjust the pointer. */
-L4: decl %ecx /* decrement counter */
+L(4): decl %ecx /* decrement counter */
incl %eax /* increment pointer */
-L5: decl %ecx /* increment pointer */
+L(5): decl %ecx /* increment pointer */
incl %eax /* increment pointer */
-L6: decl %ecx /* increment pointer */
+L(6): decl %ecx /* increment pointer */
incl %eax /* increment pointer */
-L7:
+L(7):
addl $3, %ecx /* correct pre-decrementation of counter
at the beginning of the loop; but why 3
and not 4? Very simple, we have to count
the NUL char we already wrote. */
- jz L9 /* counter is also 0 => exit */
+ jz L(9) /* counter is also 0 => exit */
/* We now have to fill the rest of the buffer with NUL. This
is done in a tricky way. Please note that the addressing mode
used below is not the same we used above. Here we use the
%ecx register. */
-L8:
+L(8):
movb $0, (%ecx,%eax) /* store NUL char */
-L3: decl %ecx /* all bytes written? */
- jnz L8 /* no, then again */
+L(3): decl %ecx /* all bytes written? */
+ jnz L(8) /* no, then again */
-L9: popl %esi /* restore saved register content */
+L(9): popl %esi /* restore saved register content */
ret
END (__stpncpy)