diff options
author | Ulrich Drepper <drepper@redhat.com> | 2001-04-04 00:01:02 +0000 |
---|---|---|
committer | Ulrich Drepper <drepper@redhat.com> | 2001-04-04 00:01:02 +0000 |
commit | c891b2df087e0219319785c29d3af6042e4ac94f (patch) | |
tree | 35f252e14d0024b991068214f533f738d23bdab7 /sysdeps | |
parent | f114375059d2f3ee90aaeea242120b3dda84787b (diff) | |
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Update.
2001-04-03 Ulrich Drepper <drepper@redhat.com>
* misc/dirname.c (dirname): Handle multiple slashes correctly.
2001-04-03 Martin Schwidefsky <schwidefsky@de.ibm.com>
* sysdeps/s390/s390-64/initfini.c: Fix __gmon_start__ GOT access.
2001-04-03 Martin Schwidefsky <schwidefsky@de.ibm.com>
* sysdeps/s390/s390-32/bcopy.S: Optimize for speed.
* sysdeps/s390/s390-64/bcopy.S: Likewise.
* sysdeps/s390/s390-32/mempcy.S: Likewise.
* sysdeps/s390/s390-64/memcpy.S: Likewise.
2001-04-02 Bruno Haible <haible@clisp.cons.org>
* manual/message.texi (Advanced gettext functions): More specific
syntax in the plural formula examples.
2001-04-02 Franz Sirl <Franz.Sirl-kernel@lauterbach.com>
* sysdeps/powerpc/atomicity.h: Silence warnings.
* sysdeps/powerpc/dl-machine.h: Likewise.
* sysdeps/powerpc/register-dump.h: Likewise.
* sysdeps/powerpc/fpu/s_lrint.c: Likewise.
2001-04-02 Andreas Jaeger <aj@suse.de>
* misc/tst-dirname.c (main): Add more tests, derived from a bug
report by Michael Kerrisk <mtk16@ext.canterbury.ac.nz>.
2001-04-01 Andreas Jaeger <aj@suse.de>
* debug/xtrace.sh (pcprofileso): Use SLIBDIR since libpcprofile.so
is installed there.
* malloc/memusage.sh (memusageso): Likewise for libmemusage.so.
2001-04-01 H.J. Lu <hjl@gnu.org>
* posix/annexc.c (macrofile): Renamed from TMPFILE and set to
tmpnam (NULL).
* stdlib/isomac.c (macrofile): Likewise.
2001-03-30 Thorsten Kukuk <kukuk@suse.de>
* inet/rcmd.c: Allow AF_UNSPEC as parameter.
* nis/ypclnt.c (yp_all): Print error message only at last try,
check for protocoll error only if we don't have a network error.
Diffstat (limited to 'sysdeps')
-rw-r--r-- | sysdeps/powerpc/atomicity.h | 58 | ||||
-rw-r--r-- | sysdeps/powerpc/dl-machine.h | 190 | ||||
-rw-r--r-- | sysdeps/powerpc/fpu/s_lrint.c | 12 | ||||
-rw-r--r-- | sysdeps/powerpc/register-dump.h | 34 | ||||
-rw-r--r-- | sysdeps/s390/s390-32/bcopy.S | 54 | ||||
-rw-r--r-- | sysdeps/s390/s390-32/memcpy.S | 37 | ||||
-rw-r--r-- | sysdeps/s390/s390-64/bcopy.S | 47 | ||||
-rw-r--r-- | sysdeps/s390/s390-64/initfini.c | 4 | ||||
-rw-r--r-- | sysdeps/s390/s390-64/memcpy.S | 34 |
9 files changed, 245 insertions, 225 deletions
diff --git a/sysdeps/powerpc/atomicity.h b/sysdeps/powerpc/atomicity.h index 2924b181f5..6942dfecd1 100644 --- a/sysdeps/powerpc/atomicity.h +++ b/sysdeps/powerpc/atomicity.h @@ -33,11 +33,11 @@ __attribute__ ((unused)) exchange_and_add (volatile uint32_t *mem, int val) { int tmp, result; - __asm__ ("\ -0: lwarx %0,0,%2 - add%I3 %1,%0,%3 - stwcx. %1,0,%2 - bne- 0b + __asm__ ("\n\ +0: lwarx %0,0,%2 \n\ + add%I3 %1,%0,%3 \n\ + stwcx. %1,0,%2 \n\ + bne- 0b \n\ " : "=&b"(result), "=&r"(tmp) : "r" (mem), "Ir"(val) : "cr0", "memory"); return result; } @@ -47,11 +47,11 @@ __attribute__ ((unused)) atomic_add (volatile uint32_t *mem, int val) { int tmp; - __asm__ ("\ -0: lwarx %0,0,%1 - add%I2 %0,%0,%2 - stwcx. %0,0,%1 - bne- 0b + __asm__ ("\n\ +0: lwarx %0,0,%1 \n\ + add%I2 %0,%0,%2 \n\ + stwcx. %0,0,%1 \n\ + bne- 0b \n\ " : "=&b"(tmp) : "r" (mem), "Ir"(val) : "cr0", "memory"); } @@ -60,14 +60,14 @@ __attribute__ ((unused)) compare_and_swap (volatile long int *p, long int oldval, long int newval) { int result; - __asm__ ("\ -0: lwarx %0,0,%1 - sub%I2c. %0,%0,%2 - cntlzw %0,%0 - bne- 1f - stwcx. %3,0,%1 - bne- 0b -1: + __asm__ ("\n\ +0: lwarx %0,0,%1 \n\ + sub%I2c. %0,%0,%2 \n\ + cntlzw %0,%0 \n\ + bne- 1f \n\ + stwcx. %3,0,%1 \n\ + bne- 0b \n\ +1: \n\ " : "=&b"(result) : "r"(p), "Ir"(oldval), "r"(newval) : "cr0", "memory"); return result >> 5; } @@ -77,10 +77,10 @@ __attribute__ ((unused)) always_swap (volatile long int *p, long int newval) { long int result; - __asm__ ("\ -0: lwarx %0,0,%1 - stwcx. %2,0,%1 - bne- 0b + __asm__ ("\n\ +0: lwarx %0,0,%1 \n\ + stwcx. %2,0,%1 \n\ + bne- 0b \n\ " : "=&r"(result) : "r"(p), "r"(newval) : "cr0", "memory"); return result; } @@ -90,13 +90,13 @@ __attribute__ ((unused)) test_and_set (volatile long int *p, long int newval) { int result; - __asm__ ("\ -0: lwarx %0,0,%1 - cmpwi %0,0 - bne- 1f - stwcx. %2,0,%1 - bne- 0b -1: + __asm__ ("\n\ +0: lwarx %0,0,%1 \n\ + cmpwi %0,0 \n\ + bne- 1f \n\ + stwcx. %2,0,%1 \n\ + bne- 0b \n\ +1: \n\ " : "=&r"(result) : "r"(p), "r"(newval) : "cr0", "memory"); return result; } diff --git a/sysdeps/powerpc/dl-machine.h b/sysdeps/powerpc/dl-machine.h index 961aafbd62..80db704835 100644 --- a/sysdeps/powerpc/dl-machine.h +++ b/sysdeps/powerpc/dl-machine.h @@ -102,101 +102,101 @@ elf_machine_load_address (void) /* This code is used in dl-runtime.c to call the `fixup' function and then redirect to the address it returns. It is called from code built in the PLT by elf_machine_runtime_setup. */ -#define ELF_MACHINE_RUNTIME_TRAMPOLINE asm ("\ - .section \".text\" - .align 2 - .globl _dl_runtime_resolve - .type _dl_runtime_resolve,@function -_dl_runtime_resolve: - # We need to save the registers used to pass parameters, and register 0, - # which is used by _mcount; the registers are saved in a stack frame. - stwu 1,-64(1) - stw 0,12(1) - stw 3,16(1) - stw 4,20(1) - # The code that calls this has put parameters for `fixup' in r12 and r11. - mr 3,12 - stw 5,24(1) - mr 4,11 - stw 6,28(1) - mflr 0 - # We also need to save some of the condition register fields. - stw 7,32(1) - stw 0,48(1) - stw 8,36(1) - mfcr 0 - stw 9,40(1) - stw 10,44(1) - stw 0,8(1) - bl fixup@local - # 'fixup' returns the address we want to branch to. - mtctr 3 - # Put the registers back... - lwz 0,48(1) - lwz 10,44(1) - lwz 9,40(1) - mtlr 0 - lwz 8,36(1) - lwz 0,8(1) - lwz 7,32(1) - lwz 6,28(1) - mtcrf 0xFF,0 - lwz 5,24(1) - lwz 4,20(1) - lwz 3,16(1) - lwz 0,12(1) - # ...unwind the stack frame, and jump to the PLT entry we updated. - addi 1,1,64 - bctr - .size _dl_runtime_resolve,.-_dl_runtime_resolve - - .align 2 - .globl _dl_prof_resolve - .type _dl_prof_resolve,@function -_dl_prof_resolve: - # We need to save the registers used to pass parameters, and register 0, - # which is used by _mcount; the registers are saved in a stack frame. - stwu 1,-64(1) - stw 0,12(1) - stw 3,16(1) - stw 4,20(1) - # The code that calls this has put parameters for `fixup' in r12 and r11. - mr 3,12 - stw 5,24(1) - mr 4,11 - stw 6,28(1) - mflr 5 - # We also need to save some of the condition register fields. - stw 7,32(1) - stw 5,48(1) - stw 8,36(1) - mfcr 0 - stw 9,40(1) - stw 10,44(1) - stw 0,8(1) - bl profile_fixup@local - # 'fixup' returns the address we want to branch to. - mtctr 3 - # Put the registers back... - lwz 0,48(1) - lwz 10,44(1) - lwz 9,40(1) - mtlr 0 - lwz 8,36(1) - lwz 0,8(1) - lwz 7,32(1) - lwz 6,28(1) - mtcrf 0xFF,0 - lwz 5,24(1) - lwz 4,20(1) - lwz 3,16(1) - lwz 0,12(1) - # ...unwind the stack frame, and jump to the PLT entry we updated. - addi 1,1,64 - bctr - .size _dl_prof_resolve,.-_dl_prof_resolve - # Undo '.section text'. - .previous +#define ELF_MACHINE_RUNTIME_TRAMPOLINE asm ("\n\ + .section \".text\" \n\ + .align 2 \n\ + .globl _dl_runtime_resolve \n\ + .type _dl_runtime_resolve,@function \n\ +_dl_runtime_resolve: \n\ + # We need to save the registers used to pass parameters, and register 0,\n\ + # which is used by _mcount; the registers are saved in a stack frame.\n\ + stwu 1,-64(1) \n\ + stw 0,12(1) \n\ + stw 3,16(1) \n\ + stw 4,20(1) \n\ + # The code that calls this has put parameters for `fixup' in r12 and r11.\n\ + mr 3,12 \n\ + stw 5,24(1) \n\ + mr 4,11 \n\ + stw 6,28(1) \n\ + mflr 0 \n\ + # We also need to save some of the condition register fields.\n\ + stw 7,32(1) \n\ + stw 0,48(1) \n\ + stw 8,36(1) \n\ + mfcr 0 \n\ + stw 9,40(1) \n\ + stw 10,44(1) \n\ + stw 0,8(1) \n\ + bl fixup@local \n\ + # 'fixup' returns the address we want to branch to.\n\ + mtctr 3 \n\ + # Put the registers back...\n\ + lwz 0,48(1) \n\ + lwz 10,44(1) \n\ + lwz 9,40(1) \n\ + mtlr 0 \n\ + lwz 8,36(1) \n\ + lwz 0,8(1) \n\ + lwz 7,32(1) \n\ + lwz 6,28(1) \n\ + mtcrf 0xFF,0 \n\ + lwz 5,24(1) \n\ + lwz 4,20(1) \n\ + lwz 3,16(1) \n\ + lwz 0,12(1) \n\ + # ...unwind the stack frame, and jump to the PLT entry we updated.\n\ + addi 1,1,64 \n\ + bctr \n\ + .size _dl_runtime_resolve,.-_dl_runtime_resolve \n\ + \n\ + .align 2 \n\ + .globl _dl_prof_resolve \n\ + .type _dl_prof_resolve,@function \n\ +_dl_prof_resolve: \n\ + # We need to save the registers used to pass parameters, and register 0,\n\ + # which is used by _mcount; the registers are saved in a stack frame.\n\ + stwu 1,-64(1) \n\ + stw 0,12(1) \n\ + stw 3,16(1) \n\ + stw 4,20(1) \n\ + # The code that calls this has put parameters for `fixup' in r12 and r11.\n\ + mr 3,12 \n\ + stw 5,24(1) \n\ + mr 4,11 \n\ + stw 6,28(1) \n\ + mflr 5 \n\ + # We also need to save some of the condition register fields.\n\ + stw 7,32(1) \n\ + stw 5,48(1) \n\ + stw 8,36(1) \n\ + mfcr 0 \n\ + stw 9,40(1) \n\ + stw 10,44(1) \n\ + stw 0,8(1) \n\ + bl profile_fixup@local \n\ + # 'fixup' returns the address we want to branch to.\n\ + mtctr 3 \n\ + # Put the registers back...\n\ + lwz 0,48(1) \n\ + lwz 10,44(1) \n\ + lwz 9,40(1) \n\ + mtlr 0 \n\ + lwz 8,36(1) \n\ + lwz 0,8(1) \n\ + lwz 7,32(1) \n\ + lwz 6,28(1) \n\ + mtcrf 0xFF,0 \n\ + lwz 5,24(1) \n\ + lwz 4,20(1) \n\ + lwz 3,16(1) \n\ + lwz 0,12(1) \n\ + # ...unwind the stack frame, and jump to the PLT entry we updated.\n\ + addi 1,1,64 \n\ + bctr \n\ + .size _dl_prof_resolve,.-_dl_prof_resolve \n\ + # Undo '.section text'.\n\ + .previous \n\ "); /* The actual _start code is in dl-start.S. Use a really diff --git a/sysdeps/powerpc/fpu/s_lrint.c b/sysdeps/powerpc/fpu/s_lrint.c index a060598859..ce8df3193e 100644 --- a/sysdeps/powerpc/fpu/s_lrint.c +++ b/sysdeps/powerpc/fpu/s_lrint.c @@ -32,12 +32,12 @@ __lrint (double x) weak_alias (__lrint, lrint) /* This code will also work for a 'float' argument. */ -asm ("\ - .globl __lrintf - .globl lrintf - .weak lrintf - .set __lrintf,__lrint - .set lrintf,__lrint +asm ("\n\ + .globl __lrintf \n\ + .globl lrintf \n\ + .weak lrintf \n\ + .set __lrintf,__lrint \n\ + .set lrintf,__lrint \n\ "); #ifdef NO_LONG_DOUBLE diff --git a/sysdeps/powerpc/register-dump.h b/sysdeps/powerpc/register-dump.h index f1d3985e32..5cea8f8775 100644 --- a/sysdeps/powerpc/register-dump.h +++ b/sysdeps/powerpc/register-dump.h @@ -22,23 +22,23 @@ /* This prints out the information in the following form: */ static const char dumpform[] = "\ -Register dump: -fp0-3: 0000030%0000031% 0000032%0000033% 0000034%0000035% 0000036%0000037% -fp4-7: 0000038%0000039% 000003a%000003b% 000003c%000003d% 000003e%000003f% -fp8-11: 0000040%0000041% 0000042%0000043% 0000044%0000045% 0000046%0000047% -fp12-15: 0000048%0000049% 000004a%000004b% 000004c%000004d% 000004e%000004f% -fp16-19: 0000050%0000051% 0000052%0000053% 0000054%0000055% 0000056%0000057% -fp20-23: 0000058%0000059% 000005a%000005b% 000005c%000005d% 000005e%000005f% -fp24-27: 0000060%0000061% 0000062%0000063% 0000064%0000065% 0000066%0000067% -fp28-31: 0000068%0000069% 000006a%000006b% 000006c%000006d% 000006e%000006f% -r0 =0000000% sp =0000001% r2 =0000002% r3 =0000003% trap=0000028% -r4 =0000004% r5 =0000005% r6 =0000006% r7 =0000007% sr0=0000020% sr1=0000021% -r8 =0000008% r9 =0000009% r10=000000a% r11=000000b% dar=0000029% dsi=000002a% -r12=000000c% r13=000000d% r14=000000e% r15=000000f% r3*=0000022% -r16=0000010% r17=0000011% r18=0000012% r19=0000013% -r20=0000014% r21=0000015% r22=0000016% r23=0000017% lr=0000024% xer=0000025% -r24=0000018% r25=0000019% r26=000001a% r27=000001b% mq=0000027% ctr=0000023% -r28=000001c% r29=000001d% r30=000001e% r31=000001f% fscr=0000071% ccr=0000026% +Register dump:\n\ +fp0-3: 0000030%0000031% 0000032%0000033% 0000034%0000035% 0000036%0000037%\n\ +fp4-7: 0000038%0000039% 000003a%000003b% 000003c%000003d% 000003e%000003f%\n\ +fp8-11: 0000040%0000041% 0000042%0000043% 0000044%0000045% 0000046%0000047%\n\ +fp12-15: 0000048%0000049% 000004a%000004b% 000004c%000004d% 000004e%000004f%\n\ +fp16-19: 0000050%0000051% 0000052%0000053% 0000054%0000055% 0000056%0000057%\n\ +fp20-23: 0000058%0000059% 000005a%000005b% 000005c%000005d% 000005e%000005f%\n\ +fp24-27: 0000060%0000061% 0000062%0000063% 0000064%0000065% 0000066%0000067%\n\ +fp28-31: 0000068%0000069% 000006a%000006b% 000006c%000006d% 000006e%000006f%\n\ +r0 =0000000% sp =0000001% r2 =0000002% r3 =0000003% trap=0000028%\n\ +r4 =0000004% r5 =0000005% r6 =0000006% r7 =0000007% sr0=0000020% sr1=0000021%\n\ +r8 =0000008% r9 =0000009% r10=000000a% r11=000000b% dar=0000029% dsi=000002a%\n\ +r12=000000c% r13=000000d% r14=000000e% r15=000000f% r3*=0000022%\n\ +r16=0000010% r17=0000011% r18=0000012% r19=0000013%\n\ +r20=0000014% r21=0000015% r22=0000016% r23=0000017% lr=0000024% xer=0000025%\n\ +r24=0000018% r25=0000019% r26=000001a% r27=000001b% mq=0000027% ctr=0000023%\n\ +r28=000001c% r29=000001d% r30=000001e% r31=000001f% fscr=0000071% ccr=0000026%\n\ "; /* Most of the fields are self-explanatory. 'sr0' is the next diff --git a/sysdeps/s390/s390-32/bcopy.S b/sysdeps/s390/s390-32/bcopy.S index 8bf5bbbefa..526e3361d1 100644 --- a/sysdeps/s390/s390-32/bcopy.S +++ b/sysdeps/s390/s390-32/bcopy.S @@ -1,4 +1,4 @@ -/* bcopy -- copy a block from source to destination. For IBM S390 +/* bcopy -- copy a block from source to destination. S/390 version. This file is part of the GNU C Library. Copyright (C) 2000, 2001 Free Software Foundation, Inc. Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). @@ -18,48 +18,53 @@ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ -/* - * R2 = address of source - * R3 = address of destination - * R4 = number of bytes to copy - */ +/* INPUT PARAMETERS + %r2 = address of source + %r3 = address of destination + %r4 = number of bytes to copy. */ #include "sysdep.h" #include "asm-syntax.h" .text ENTRY(__bcopy) + ltr %r1,%r4 # zero bcopy ? + jz .L4 clr %r2,%r3 # check against destructive overlap jnl .L0 - lr %r1,%r2 - alr %r1,%r4 + alr %r1,%r2 clr %r1,%r3 - jh .L2 -.L0: - lr %r5,%r4 # source length - lr %r4,%r2 # source address - sr %r1,%r1 # set pad byte to zero - lr %r2,%r3 # set destination - lr %r3,%r5 # destination length = source length -.L1: mvcle %r2,%r4,0(%r1) # thats it, MVCLE is your friend - jo .L1 - br %r14 -.L2: # destructive overlay, can not use mvcle + jh .L5 +.L0: ahi %r4,-1 # length - 1 + lr %r1,%r4 + srl %r1,8 + ltr %r1,%r1 + jz .L2 +.L1: mvc 0(256,%r3),0(%r2) # move in 256 byte chunks + la %r2,256(%r2) + la %r3,256(%r3) + brct %r1,.L1 +.L2: bras %r1,.L3 # setup base pointer for execute + mvc 0(1,%r3),0(%r2) # instruction for execute +.L3: ex %r4,0(%r1) # execute mvc with length ((%r4)&255)+1 +.L4: br %r14 + +.L5: # destructive overlay, can not use mvcle lr %r1,%r2 # bcopy is called with source,dest lr %r2,%r3 # memmove with dest,source! Oh, well... lr %r3,%r1 basr %r1,0 -.L3: +.L6: #ifdef PIC - al %r1,.L4-.L3(%r1) # get address of global offset table + al %r1,.L7-.L6(%r1) # get address of global offset table # load address of memmove l %r1,memmove@GOT12(%r1) br %r1 -.L4: .long _GLOBAL_OFFSET_TABLE_-.L3 +.L7: .long _GLOBAL_OFFSET_TABLE_-.L6 #else - al %r1,.L4-.L3(%r1) # load address of memmove + al %r1,.L7-.L6(%r1) # load address of memmove br %r1 # jump to memmove -.L4: .long memmove-.L3 +.L7: .long memmove-.L6 #endif END(__bcopy) @@ -67,3 +72,4 @@ END(__bcopy) #ifndef NO_WEAK_ALIAS weak_alias (__bcopy, bcopy) #endif + diff --git a/sysdeps/s390/s390-32/memcpy.S b/sysdeps/s390/s390-32/memcpy.S index 4bbec7c633..9c4b840928 100644 --- a/sysdeps/s390/s390-32/memcpy.S +++ b/sysdeps/s390/s390-32/memcpy.S @@ -1,4 +1,4 @@ -/* Set a block of memory to some byte value. For IBM S390 +/* memcpy - copy a block from source to destination. S/390 version. Copyright (C) 2000, 2001 Free Software Foundation, Inc. Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). @@ -17,25 +17,30 @@ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ -/* - * R2 = address to destination memory area - * R3 = address to source memory area - * R4 = number of bytes to copy - */ +/* INPUT PARAMETERS + %r2 = address of destination memory area + %r3 = address of source memory area + %r4 = number of bytes to copy. */ #include "sysdep.h" #include "asm-syntax.h" .text ENTRY(memcpy) - ltr %r5,%r4 + ltr %r4,%r4 + jz .L3 + ahi %r4,-1 # length - 1 + lr %r1,%r2 # copy destination address + lr %r5,%r4 + sra %r5,8 jz .L1 - lr %r4,%r3 # %r4/%r5 = source ptr/len - lr %r3,%r5 # %r2/%r3 = dest ptr/len - lr %r0,%r2 # save source address -.L0: mvcle %r2,%r4,0 # thats it, MVCLE is your friend - jo .L0 - lr %r2,%r0 # return value is source address -.L1: - br %r14 -END(memset) +.L0: mvc 0(256,%r1),0(%r3) # move in 256 byte chunks + la %r1,256(%r1) + la %r3,256(%r3) + brct %r5,.L0 +.L1: bras %r5,.L2 # setup base pointer for execute + mvc 0(1,%r1),0(%r3) # instruction for execute +.L2: ex %r4,0(%r5) # execute mvc with length ((%r4)&255)+1 +.L3: br %r14 +END(memcpy) + diff --git a/sysdeps/s390/s390-64/bcopy.S b/sysdeps/s390/s390-64/bcopy.S index 5cb02b3162..0d75d3ea9f 100644 --- a/sysdeps/s390/s390-64/bcopy.S +++ b/sysdeps/s390/s390-64/bcopy.S @@ -1,6 +1,6 @@ /* bcopy -- copy a block from source to destination. 64 bit S/390 version. This file is part of the GNU C Library. - Copyright (C) 2001 Free Software Foundation, Inc. + Copyright (C) 2000, 2001 Free Software Foundation, Inc. Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). The GNU C Library is free software ; you can redistribute it and/or @@ -26,27 +26,32 @@ #include "sysdep.h" #include "asm-syntax.h" - .text + .text ENTRY(__bcopy) - clgr %r2,%r3 # check against destructive overlap - jnl .L0 - lgr %r1,%r2 - algr %r1,%r4 - clgr %r1,%r3 - jh .L2 -.L0: - lgr %r5,%r4 # source length - lgr %r4,%r2 # source address - sgr %r1,%r1 # set pad byte to zero - lgr %r2,%r3 # set destination - lgr %r3,%r5 # destination length = source length -.L1: mvcle %r2,%r4,0(%r1) # thats it, MVCLE is your friend - jo .L1 - br %r14 -.L2: # destructive overlay, can not use mvcle - lgr %r1,%r2 # bcopy is called with source,dest - lgr %r2,%r3 # memmove with dest,source! Oh, well... - lgr %r3,%r1 + ltgr %r1,%r4 # zero bcopy ? + jz .L4 + clgr %r2,%r3 # check against destructive overlap + jnl .L0 + algr %r1,%r2 + clgr %r1,%r3 + jh .L5 +.L0: aghi %r4,-1 # length - 1 + srlg %r1,%r4,8 + ltgr %r1,%r1 + jz .L2 +.L1: mvc 0(256,%r3),0(%r2) # move in 256 byte chunks + la %r2,256(%r2) + la %r3,256(%r3) + brctg %r1,.L1 +.L2: bras %r1,.L3 # setup base pointer for execute + mvc 0(1,%r3),0(%r2) # instruction for execute +.L3: ex %r4,0(%r1) # execute mvc with length ((%r4)&255)+1 +.L4: br %r14 + +.L5: # destructive overlay, can not use mvcle + lgr %r1,%r2 # bcopy is called with source,dest + lgr %r2,%r3 # memmove with dest,source! Oh, well... + lgr %r3,%r1 #ifdef PIC jg memmove@PLT #else diff --git a/sysdeps/s390/s390-64/initfini.c b/sysdeps/s390/s390-64/initfini.c index 3d14b0b283..be5614b203 100644 --- a/sysdeps/s390/s390-64/initfini.c +++ b/sysdeps/s390/s390-64/initfini.c @@ -68,8 +68,8 @@ _init: AGHI 15,-160 STG 1,0(15) LARL 12,_GLOBAL_OFFSET_TABLE_ - LGHI 1,__gmon_start__@GOT - LG 1,0(1,12) + LARL 1,__gmon_start__@GOTENT + LG 1,0(1) LTGR 1,1 JE .L22 BASR 14,1 diff --git a/sysdeps/s390/s390-64/memcpy.S b/sysdeps/s390/s390-64/memcpy.S index c59d3fbb79..008f026909 100644 --- a/sysdeps/s390/s390-64/memcpy.S +++ b/sysdeps/s390/s390-64/memcpy.S @@ -1,7 +1,6 @@ -/* Set a block of memory to some byte value. 64 bit S/390 version. - Copyright (C) 2001 Free Software Foundation, Inc. +/* memcpy - copy a block from source to destination. 64 bit S/390 version. + Copyright (C) 2000, 2001 Free Software Foundation, Inc. Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). - This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as @@ -19,8 +18,8 @@ Boston, MA 02111-1307, USA. */ /* INPUT PARAMETERS - %r2 = address to destination memory area - %r3 = address to source memory area + %r2 = address of destination memory area + %r3 = address of source memory area %r4 = number of bytes to copy. */ #include "sysdep.h" @@ -28,14 +27,19 @@ .text ENTRY(memcpy) - ltgr %r5,%r4 + ltgr %r4,%r4 + jz .L3 + aghi %r4,-1 # length - 1 + lgr %r1,%r2 # copy destination address + srag %r5,%r4,8 jz .L1 - lgr %r4,%r3 # %r4/%r5 = source ptr/len - lgr %r3,%r5 # %r2/%r3 = dest ptr/len - lgr %r0,%r2 # save source address -.L0: mvcle %r2,%r4,0 # thats it, MVCLE is your friend - jo .L0 - lgr %r2,%r0 # return value is source address -.L1: - br %r14 -END(memset) +.L0: mvc 0(256,%r1),0(%r3) # move in 256 byte chunks + la %r1,256(%r1) + la %r3,256(%r3) + brctg %r5,.L0 +.L1: bras %r5,.L2 # setup base pointer for execute + mvc 0(1,%r1),0(%r3) # instruction for execute +.L2: ex %r4,0(%r5) # execute mvc with length ((%r4)&255)+1 +.L3: br %r14 +END(memcpy) + |