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30891f35fa
We stopped adding "Contributed by" or similar lines in sources in 2012 in favour of git logs and keeping the Contributors section of the glibc manual up to date. Removing these lines makes the license header a bit more consistent across files and also removes the possibility of error in attribution when license blocks or files are copied across since the contributed-by lines don't actually reflect reality in those cases. Move all "Contributed by" and similar lines (Written by, Test by, etc.) into a new file CONTRIBUTED-BY to retain record of these contributions. These contributors are also mentioned in manual/contrib.texi, so we just maintain this additional record as a courtesy to the earlier developers. The following scripts were used to filter a list of files to edit in place and to clean up the CONTRIBUTED-BY file respectively. These were not added to the glibc sources because they're not expected to be of any use in future given that this is a one time task: https://gist.github.com/siddhesh/b5ecac94eabfd72ed2916d6d8157e7dc https://gist.github.com/siddhesh/15ea1f5e435ace9774f485030695ee02 Reviewed-by: Carlos O'Donell <carlos@redhat.com>
158 lines
3.7 KiB
ArmAsm
158 lines
3.7 KiB
ArmAsm
/* Copyright (C) 1999-2021 Free Software Foundation, Inc.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <sysdep.h>
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#include <features.h>
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LEAF(__ia64_flush_rbs)
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flushrs
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mov r9 = ar.rsc // 12 cyc latency
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;;
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mov r8 = ar.bsp // 12 cyc latency
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;;
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and r16 = ~0x3, r9 // clear ar.rsc.mode
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;;
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mov ar.rsc = r16 // put RSE into enforced-lazy mode
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;;
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mov r10 = ar.rnat // 5 cyc latency
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ret
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END(__ia64_flush_rbs)
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# define pPos p6 /* is rotate count positive? */
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# define pNeg p7 /* is rotate count negative? */
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/* __ia64_longjmp(__jmp_buf buf, int val, long rnat, long rsc) */
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LEAF(__ia64_longjmp)
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alloc r8=ar.pfs,4,0,0,0
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add r2=0x98,in0 // r2 <- &jmpbuf.orig_jmp_buf_addr
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add r3=0x88,in0 // r3 <- &jmpbuf.ar_bsp
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;;
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ld8 r8=[r2] // r8 <- orig_jmp_buf_addr
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ld8 r23=[r3],8 // r23 <- jmpbuf.ar_bsp
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mov r2=in0
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;;
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//
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// Note: we need to redo the "flushrs" here even though it's
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// already been done by __ia64_flush_rbs. It is needed to
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// ensure that ar.bspstore == ar.bsp.
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//
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flushrs // flush dirty regs to backing store
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ld8 r25=[r3] // r25 <- jmpbuf.ar_unat
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sub r8=r8,in0 // r8 <- &orig_jmpbuf - &jmpbuf
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;;
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add r3=8,in0 // r3 <- &jmpbuf.r1
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extr.u r8=r8,3,6 // r8 <- (&orig_jmpbuf - &jmpbuf)/8 & 0x3f
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;;
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cmp.lt pNeg,pPos=r8,r0
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;;
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(pPos) mov r16=r8
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(pNeg) add r16=64,r8
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(pPos) sub r17=64,r8
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(pNeg) sub r17=r0,r8
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;;
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shr.u r8=r25,r16
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shl r9=r25,r17
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;;
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or r25=r8,r9
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;;
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mov ar.unat=r25 // setup ar.unat (NaT bits for r1, r4-r7, and r12)
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;;
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ld8.fill.nta sp=[r2],16 // r12 (sp)
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ld8.fill.nta gp=[r3],32 // r1 (gp)
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dep r11=-1,r23,3,6 // r11 <- ia64_rse_rnat_addr(jmpbuf.ar_bsp)
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;;
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ld8.nta r16=[r2],16 // caller's unat
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// ld8.nta r17=[r3],16 // fpsr
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;;
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ld8.fill.nta r4=[r2],16 // r4
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ld8.fill.nta r5=[r3],16 // r5 (gp)
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;;
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ld8.fill.nta r6=[r2],16 // r6
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ld8.fill.nta r7=[r3],16 // r7
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;;
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mov ar.unat=r16 // restore caller's unat
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// mov ar.fpsr=r17 // restore fpsr
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;;
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ld8.nta r16=[r2],16 // b0
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ld8.nta r17=[r3],16 // b1
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;;
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mov ar.bspstore=r23 // restore ar.bspstore
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ld8.nta r18=[r2],16 // b2
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;;
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mov ar.rnat=in2 // restore ar.rnat
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ld8.nta r19=[r3],16 // b3
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;;
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ld8.nta r20=[r2],16 // b4
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ld8.nta r21=[r3],16 // b5
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#ifdef PTR_DEMANGLE
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PTR_DEMANGLE (r16, r24)
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#endif
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;;
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ld8.nta r11=[r2],16 // ar.pfs
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ld8.nta r22=[r3],56 // ar.lc
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;;
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ld8.nta r24=[r2],32 // pr
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mov ar.rsc=in3 // restore ar.rsc
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mov b0=r16
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;;
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ldf.fill.nta f2=[r2],32
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ldf.fill.nta f3=[r3],32
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mov b1=r17
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;;
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ldf.fill.nta f4=[r2],32
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ldf.fill.nta f5=[r3],32
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mov b2=r18
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;;
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ldf.fill.nta f16=[r2],32
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ldf.fill.nta f17=[r3],32
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mov b3=r19
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;;
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ldf.fill.nta f18=[r2],32
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ldf.fill.nta f19=[r3],32
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mov b4=r20
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;;
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ldf.fill.nta f20=[r2],32
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ldf.fill.nta f21=[r3],32
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mov b5=r21
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;;
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ldf.fill.nta f22=[r2],32
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ldf.fill.nta f23=[r3],32
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mov ar.lc=r22
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;;
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ldf.fill.nta f24=[r2],32
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ldf.fill.nta f25=[r3],32
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cmp.eq p8,p9=0,in1
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;;
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ldf.fill.nta f26=[r2],32
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ldf.fill.nta f27=[r3],32
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mov ar.pfs=r11
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;;
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ldf.fill.nta f28=[r2],32
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ldf.fill.nta f29=[r3],32
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(p8) mov r8=1
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;;
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ldf.fill.nta f30=[r2]
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ldf.fill.nta f31=[r3]
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(p9) mov r8=in1
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invala // virt. -> phys. regnum mapping may change
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mov pr=r24,-1
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ret
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END(__ia64_longjmp)
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