head 1.17; access; symbols netbsd-11-0-RC5:1.17 netbsd-11-0-RC4:1.17 netbsd-11-0-RC3:1.17 netbsd-11-0-RC2:1.17 netbsd-11-0-RC1:1.17 perseant-exfatfs-base-20250801:1.17 netbsd-11:1.17.0.56 netbsd-11-base:1.17 netbsd-10-1-RELEASE:1.17 perseant-exfatfs-base-20240630:1.17 perseant-exfatfs:1.17.0.54 perseant-exfatfs-base:1.17 netbsd-8-3-RELEASE:1.17 netbsd-9-4-RELEASE:1.17 netbsd-10-0-RELEASE:1.17 netbsd-10-0-RC6:1.17 netbsd-10-0-RC5:1.17 netbsd-10-0-RC4:1.17 netbsd-10-0-RC3:1.17 netbsd-10-0-RC2:1.17 netbsd-10-0-RC1:1.17 netbsd-10:1.17.0.52 netbsd-10-base:1.17 netbsd-9-3-RELEASE:1.17 cjep_sun2x-base1:1.17 cjep_sun2x:1.17.0.50 cjep_sun2x-base:1.17 cjep_staticlib_x-base1:1.17 netbsd-9-2-RELEASE:1.17 cjep_staticlib_x:1.17.0.48 cjep_staticlib_x-base:1.17 netbsd-9-1-RELEASE:1.17 phil-wifi-20200421:1.17 phil-wifi-20200411:1.17 is-mlppp:1.17.0.46 is-mlppp-base:1.17 phil-wifi-20200406:1.17 netbsd-8-2-RELEASE:1.17 netbsd-9-0-RELEASE:1.17 netbsd-9-0-RC2:1.17 netbsd-9-0-RC1:1.17 phil-wifi-20191119:1.17 netbsd-9:1.17.0.44 netbsd-9-base:1.17 phil-wifi-20190609:1.17 netbsd-8-1-RELEASE:1.17 netbsd-8-1-RC1:1.17 pgoyette-compat-merge-20190127:1.17 pgoyette-compat-20190127:1.17 pgoyette-compat-20190118:1.17 pgoyette-compat-1226:1.17 pgoyette-compat-1126:1.17 pgoyette-compat-1020:1.17 pgoyette-compat-0930:1.17 pgoyette-compat-0906:1.17 netbsd-7-2-RELEASE:1.17 pgoyette-compat-0728:1.17 netbsd-8-0-RELEASE:1.17 phil-wifi:1.17.0.42 phil-wifi-base:1.17 pgoyette-compat-0625:1.17 netbsd-8-0-RC2:1.17 pgoyette-compat-0521:1.17 pgoyette-compat-0502:1.17 pgoyette-compat-0422:1.17 netbsd-8-0-RC1:1.17 pgoyette-compat-0415:1.17 pgoyette-compat-0407:1.17 pgoyette-compat-0330:1.17 pgoyette-compat-0322:1.17 pgoyette-compat-0315:1.17 netbsd-7-1-2-RELEASE:1.17 pgoyette-compat:1.17.0.40 pgoyette-compat-base:1.17 netbsd-7-1-1-RELEASE:1.17 matt-nb8-mediatek:1.17.0.38 matt-nb8-mediatek-base:1.17 perseant-stdc-iso10646:1.17.0.36 perseant-stdc-iso10646-base:1.17 netbsd-8:1.17.0.34 netbsd-8-base:1.17 prg-localcount2-base3:1.17 prg-localcount2-base2:1.17 prg-localcount2-base1:1.17 prg-localcount2:1.17.0.32 prg-localcount2-base:1.17 pgoyette-localcount-20170426:1.17 bouyer-socketcan-base1:1.17 pgoyette-localcount-20170320:1.17 netbsd-7-1:1.17.0.30 netbsd-7-1-RELEASE:1.17 netbsd-7-1-RC2:1.17 netbsd-7-nhusb-base-20170116:1.17 bouyer-socketcan:1.17.0.28 bouyer-socketcan-base:1.17 pgoyette-localcount-20170107:1.17 netbsd-7-1-RC1:1.17 pgoyette-localcount-20161104:1.17 netbsd-7-0-2-RELEASE:1.17 localcount-20160914:1.17 netbsd-7-nhusb:1.17.0.26 netbsd-7-nhusb-base:1.17 pgoyette-localcount-20160806:1.17 pgoyette-localcount-20160726:1.17 pgoyette-localcount:1.17.0.24 pgoyette-localcount-base:1.17 netbsd-7-0-1-RELEASE:1.17 netbsd-7-0:1.17.0.22 netbsd-7-0-RELEASE:1.17 netbsd-7-0-RC3:1.17 netbsd-7-0-RC2:1.17 netbsd-7-0-RC1:1.17 netbsd-5-2-3-RELEASE:1.13 netbsd-5-1-5-RELEASE:1.13 netbsd-6-0-6-RELEASE:1.17 netbsd-6-1-5-RELEASE:1.17 netbsd-7:1.17.0.20 netbsd-7-base:1.17 yamt-pagecache-base9:1.17 yamt-pagecache-tag8:1.17 netbsd-6-1-4-RELEASE:1.17 netbsd-6-0-5-RELEASE:1.17 tls-earlyentropy:1.17.0.18 tls-earlyentropy-base:1.17 riastradh-xf86-video-intel-2-7-1-pre-2-21-15:1.17 riastradh-drm2-base3:1.17 netbsd-6-1-3-RELEASE:1.17 netbsd-6-0-4-RELEASE:1.17 netbsd-5-2-2-RELEASE:1.13 netbsd-5-1-4-RELEASE:1.13 netbsd-6-1-2-RELEASE:1.17 netbsd-6-0-3-RELEASE:1.17 netbsd-5-2-1-RELEASE:1.13 netbsd-5-1-3-RELEASE:1.13 netbsd-6-1-1-RELEASE:1.17 riastradh-drm2-base2:1.17 riastradh-drm2-base1:1.17 riastradh-drm2:1.17.0.12 riastradh-drm2-base:1.17 netbsd-6-1:1.17.0.16 netbsd-6-0-2-RELEASE:1.17 netbsd-6-1-RELEASE:1.17 netbsd-6-1-RC4:1.17 netbsd-6-1-RC3:1.17 agc-symver:1.17.0.14 agc-symver-base:1.17 netbsd-6-1-RC2:1.17 netbsd-6-1-RC1:1.17 yamt-pagecache-base8:1.17 netbsd-5-2:1.13.0.50 netbsd-6-0-1-RELEASE:1.17 yamt-pagecache-base7:1.17 netbsd-5-2-RELEASE:1.13 netbsd-5-2-RC1:1.13 matt-nb6-plus-nbase:1.17 yamt-pagecache-base6:1.17 netbsd-6-0:1.17.0.10 netbsd-6-0-RELEASE:1.17 netbsd-6-0-RC2:1.17 tls-maxphys:1.17.0.8 tls-maxphys-base:1.17 matt-nb6-plus:1.17.0.6 matt-nb6-plus-base:1.17 netbsd-6-0-RC1:1.17 yamt-pagecache-base5:1.17 yamt-pagecache-base4:1.17 netbsd-6:1.17.0.4 netbsd-6-base:1.17 netbsd-5-1-2-RELEASE:1.13 netbsd-5-1-1-RELEASE:1.13 yamt-pagecache-base3:1.17 yamt-pagecache-base2:1.17 yamt-pagecache:1.17.0.2 yamt-pagecache-base:1.17 cherry-xenmp:1.16.0.2 cherry-xenmp-base:1.16 bouyer-quota2-nbase:1.16 bouyer-quota2:1.14.0.2 bouyer-quota2-base:1.15 matt-mips64-premerge-20101231:1.13 matt-nb5-mips64-premerge-20101231:1.13 matt-nb5-pq3:1.13.0.48 matt-nb5-pq3-base:1.13 netbsd-5-1:1.13.0.46 netbsd-5-1-RELEASE:1.13 netbsd-5-1-RC4:1.13 matt-nb5-mips64-k15:1.13 netbsd-5-1-RC3:1.13 netbsd-5-1-RC2:1.13 netbsd-5-1-RC1:1.13 netbsd-5-0-2-RELEASE:1.13 matt-nb5-mips64-premerge-20091211:1.13 matt-premerge-20091211:1.13 matt-nb5-mips64-u2-k2-k4-k7-k8-k9:1.13 matt-nb4-mips64-k7-u2a-k9b:1.13 matt-nb5-mips64-u1-k1-k5:1.13 matt-nb5-mips64:1.13.0.44 netbsd-5-0-1-RELEASE:1.13 jym-xensuspend-nbase:1.13 netbsd-5-0:1.13.0.42 netbsd-5-0-RELEASE:1.13 netbsd-5-0-RC4:1.13 netbsd-5-0-RC3:1.13 netbsd-5-0-RC2:1.13 jym-xensuspend:1.13.0.40 jym-xensuspend-base:1.13 netbsd-5-0-RC1:1.13 netbsd-5:1.13.0.38 netbsd-5-base:1.13 matt-mips64-base2:1.13 matt-mips64:1.13.0.36 mjf-devfs2:1.13.0.34 mjf-devfs2-base:1.13 netbsd-4-0-1-RELEASE:1.13 wrstuden-revivesa-base-3:1.13 wrstuden-revivesa-base-2:1.13 wrstuden-fixsa-newbase:1.13 wrstuden-revivesa-base-1:1.13 yamt-pf42-base4:1.13 yamt-pf42-base3:1.13 hpcarm-cleanup-nbase:1.13 yamt-pf42-baseX:1.13 yamt-pf42-base2:1.13 wrstuden-revivesa:1.13.0.32 wrstuden-revivesa-base:1.13 yamt-pf42:1.13.0.30 yamt-pf42-base:1.13 keiichi-mipv6:1.13.0.28 keiichi-mipv6-base:1.13 matt-armv6-nbase:1.13 matt-armv6-prevmlocking:1.13 wrstuden-fixsa-base-1:1.13 netbsd-4-0:1.13.0.26 netbsd-4-0-RELEASE:1.13 cube-autoconf:1.13.0.24 cube-autoconf-base:1.13 netbsd-4-0-RC5:1.13 netbsd-4-0-RC4:1.13 netbsd-4-0-RC3:1.13 netbsd-4-0-RC2:1.13 netbsd-4-0-RC1:1.13 matt-armv6:1.13.0.22 matt-armv6-base:1.13 matt-mips64-base:1.13 hpcarm-cleanup:1.13.0.20 hpcarm-cleanup-base:1.13 netbsd-3-1-1-RELEASE:1.13 netbsd-3-0-3-RELEASE:1.13 wrstuden-fixsa:1.13.0.18 wrstuden-fixsa-base:1.13 abandoned-netbsd-4-base:1.13 abandoned-netbsd-4:1.13.0.12 netbsd-3-1:1.13.0.14 netbsd-3-1-RELEASE:1.13 netbsd-3-0-2-RELEASE:1.13 netbsd-3-1-RC4:1.13 netbsd-3-1-RC3:1.13 netbsd-3-1-RC2:1.13 netbsd-3-1-RC1:1.13 netbsd-4:1.13.0.16 netbsd-4-base:1.13 netbsd-3-0-1-RELEASE:1.13 netbsd-3-0:1.13.0.10 netbsd-3-0-RELEASE:1.13 netbsd-3-0-RC6:1.13 netbsd-3-0-RC5:1.13 netbsd-3-0-RC4:1.13 netbsd-3-0-RC3:1.13 netbsd-3-0-RC2:1.13 netbsd-3-0-RC1:1.13 netbsd-2-0-3-RELEASE:1.13 netbsd-2-1:1.13.0.8 netbsd-2-1-RELEASE:1.13 netbsd-2-1-RC6:1.13 netbsd-2-1-RC5:1.13 netbsd-2-1-RC4:1.13 netbsd-2-1-RC3:1.13 netbsd-2-1-RC2:1.13 netbsd-2-1-RC1:1.13 netbsd-2-0-2-RELEASE:1.13 netbsd-3:1.13.0.6 netbsd-3-base:1.13 netbsd-2-0-1-RELEASE:1.13 netbsd-2:1.13.0.4 netbsd-2-base:1.13 netbsd-2-0-RELEASE:1.13 netbsd-2-0-RC5:1.13 netbsd-2-0-RC4:1.13 netbsd-2-0-RC3:1.13 netbsd-2-0-RC2:1.13 netbsd-2-0-RC1:1.13 netbsd-2-0:1.13.0.2 netbsd-2-0-base:1.13 netbsd-1-6-PATCH002-RELEASE:1.4 netbsd-1-6-PATCH002:1.4 netbsd-1-6-PATCH002-RC4:1.4 netbsd-1-6-PATCH002-RC3:1.4 netbsd-1-6-PATCH002-RC2:1.4 netbsd-1-6-PATCH002-RC1:1.4 netbsd-1-6-PATCH001:1.4 netbsd-1-6-PATCH001-RELEASE:1.4 netbsd-1-6-PATCH001-RC3:1.4 netbsd-1-6-PATCH001-RC2:1.4 netbsd-1-6-PATCH001-RC1:1.4 fvdl_fs64_base:1.13 netbsd-1-6-RELEASE:1.4 netbsd-1-6-RC3:1.4 netbsd-1-6-RC2:1.4 netbsd-1-6-RC1:1.4 netbsd-1-6:1.4.0.2 netbsd-1-6-base:1.4 netbsd-1-5-PATCH003:1.3.8.1 netbsd-1-5-PATCH002:1.3 netbsd-1-5-PATCH001:1.3 netbsd-1-5-RELEASE:1.3 netbsd-1-5-BETA2:1.3 netbsd-1-5-BETA:1.3 netbsd-1-4-PATCH003:1.1 netbsd-1-5-ALPHA2:1.3 netbsd-1-5:1.3.0.8 netbsd-1-5-base:1.3 minoura-xpg4dl:1.3.0.6 minoura-xpg4dl-base:1.3 netbsd-1-4-PATCH002:1.1 wrstuden-devbsize-19991221:1.3 wrstuden-devbsize:1.3.0.4 wrstuden-devbsize-base:1.3 comdex-fall-1999:1.3.0.2 comdex-fall-1999-base:1.3 netbsd-1-4-PATCH001:1.1 netbsd-1-4-RELEASE:1.1 netbsd-1-4:1.1.0.2 netbsd-1-4-base:1.1; locks; strict; comment @# @; 1.17 date 2011.09.26.01.52.22; author mrg; state Exp; branches; next 1.16; 1.16 date 2011.03.04.00.40.48; author matt; state Exp; branches; next 1.15; 1.15 date 2011.02.10.02.28.20; author matt; state Exp; branches; next 1.14; 1.14 date 2011.01.16.01.22.29; author matt; state Exp; branches 1.14.2.1; next 1.13; 1.13 date 2002.12.04.01.19.37; author thorpej; state Exp; branches; next 1.12; 1.12 date 2002.10.31.20.23.25; author matt; state Exp; branches; next 1.11; 1.11 date 2002.10.05.11.59.06; author mycroft; state Exp; branches; next 1.10; 1.10 date 2002.09.25.07.27.53; author mycroft; state Exp; branches; next 1.9; 1.9 date 2002.09.12.17.18.40; author mycroft; state Exp; branches; next 1.8; 1.8 date 2002.09.12.17.07.26; author mycroft; state Exp; branches; next 1.7; 1.7 date 2002.09.11.21.14.08; author mycroft; state Exp; branches; next 1.6; 1.6 date 2002.09.10.02.52.33; author mycroft; state Exp; branches; next 1.5; 1.5 date 2002.09.10.02.24.51; author mycroft; state Exp; branches; next 1.4; 1.4 date 2001.09.26.04.06.43; author mycroft; state Exp; branches 1.4.2.1; next 1.3; 1.3 date 99.05.21.08.00.11; author tsubai; state Exp; branches 1.3.8.1; next 1.2; 1.2 date 99.04.18.19.40.07; author ws; state Exp; branches; next 1.1; 1.1 date 98.11.24.11.34.31; author tsubai; state Exp; branches; next ; 1.14.2.1 date 2011.02.17.11.59.24; author bouyer; state Exp; branches; next 1.14.2.2; 1.14.2.2 date 2011.03.05.15.09.24; author bouyer; state Exp; branches; next ; 1.4.2.1 date 2004.05.28.08.31.22; author tron; state Exp; branches; next ; 1.3.8.1 date 2001.12.09.17.23.30; author he; state Exp; branches; next ; desc @@ 1.17 log @match END() with a relevant ENTRY*(). gas 2.21 complains about the non-constant-ness of the symbol otherwise. @ text @/* $NetBSD: rtld_start.S,v 1.16 2011/03/04 00:40:48 matt Exp $ */ /*- * Copyright (C) 1998 Tsubai Masanari * Portions copyright 2002 Charles M. Hannum * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include .globl _rtld_start .globl _rtld .text _rtld_start: stwu %r1,-48(%r1) stw %r3,12(%r1) # argc stw %r4,16(%r1) # argv stw %r5,20(%r1) # envp /* stw %r6,24(%r1) # obj (always 0) */ /* stw %r7,28(%r1) # cleanup (always 0) */ stw %r8,32(%r1) # ps_strings bcl 20,31,1f 1: mflr %r30 mr %r3,%r30 # save for _DYNAMIC addis %r30,%r30,_GLOBAL_OFFSET_TABLE_-1b@@ha addi %r30,%r30,_GLOBAL_OFFSET_TABLE_-1b@@l addis %r3,%r3,_DYNAMIC-1b@@ha # get _DYNAMIC actual address addi %r3,%r3,_DYNAMIC-1b@@l lwz %r28,0(%r30) # get base-relative &_DYNAMIC sub %r28,%r3,%r28 # r28 = relocbase mr %r4,%r28 # r4 = relocbase bl _rtld_relocate_nonplt_self lwz %r3,16(%r1) addi %r3,%r3,-12 # sp = &argv[-3] /* XXX */ mr %r4,%r28 # r4 = relocbase bl _rtld # _start = _rtld(sp, relocbase) mtlr %r3 lwz %r3,12(%r1) # argc lwz %r4,16(%r1) # argv lwz %r5,20(%r1) # envp lwz %r6,-8(%r4) # obj = sp[1] (== argv[-2]) lwz %r7,-12(%r4) # cleanup = sp[0] (== argv[-3]) lwz %r8,32(%r1) # ps_strings addi %r1,%r1,48 blrl # _start(argc, argv, envp, obj, cleanup, ps_strings) li %r0,1 # _exit() sc END(_rtld_start) .globl _rtld_bind /* * secure-plt expects %r11 to be the offset to the rela entry. * bss-plt expects %r11 to be index of the rela entry. * So for bss-plt, we multiply the index by 12 to get the offset. */ ENTRY_NOPROFILE(_rtld_bind_secureplt_start) stwu %r1,-160(%r1) stw %r0,20(%r1) /* * Instead of division which is costly we will use multiplicative * inverse. a / n = ((a * inv(n)) >> 32) * where inv(n) = (0x100000000 + n - 1) / n */ mr %r0,%r11 lis %r11,0x15555556@@h # load multiplicative inverse of 12 ori %r11,%r11,0x15555556@@l mulhwu %r11,%r11,%r0 # get high half of multiplication b 1f ENTRY_NOPROFILE(_rtld_bind_bssplt_start) stwu %r1,-160(%r1) stw %r0,20(%r1) 1: mflr %r0 stw %r0,16(%r1) # save lr mfcr %r0 stw %r0,12(%r1) # save cr stmw %r3,24(%r1) # save r3-r31 mr %r3,%r12 # obj mr %r4,%r11 # reloff bl _rtld_bind # _rtld_bind(obj, reloff) mtctr %r3 lmw %r3,24(%r1) # load r3-r31 lwz %r0,12(%r1) # restore cr mtcr %r0 lwz %r0,16(%r1) # restore lr mtlr %r0 lwz %r0,20(%r1) addi %r1,%r1,160 bctr END(_rtld_bind_secureplt_start) .globl _rtld_powerpc_pltcall .globl _rtld_powerpc_pltresolve _rtld_powerpc_pltcall: slwi %r11,%r11,2 addis %r11,%r11,0 # addis 11,11,jmptab@@ha lwz %r11,0(%r11) # lwz 11,jmptab@@l(11) mtctr %r11 bctr _rtld_powerpc_pltresolve: lis %r12,0 # lis 12,_rtld_bind_bssplt_start@@ha addi %r12,%r12,0 # addi 12,12,_rtld_bind_bssplt_start@@l mtctr %r12 lis %r12,0 # lis 12,obj@@ha addi %r12,%r12,0 # addi 12,12,obj@@l bctr @ 1.16 log @Don't rely on >32bit math. @ text @d1 1 a1 1 /* $NetBSD: rtld_start.S,v 1.15 2011/02/10 02:28:20 matt Exp $ */ d127 1 a127 1 END(_rtld_bind_start) @ 1.15 log @Fix problem with bss-plt objects which a reloc index, not offset. (secure-plt uses an offset (index*sizeof(rela), bss-plt uses an index) secure-plt will now take the offset and divide by 12 for an index. @ text @d1 1 a1 1 /* $NetBSD: rtld_start.S,v 1.14 2011/01/16 01:22:29 matt Exp $ */ d97 2 a98 2 lis %r11,0x10000000b/12@@h # load multiplicative inverse of 12 ori %r11,%r11,0x10000000b/12@@l @ 1.14 log @Add secure-plt support for powerpc to ld.elf_so. As part of this, we have to stop calling into the GOT/_DYNAMIC since they are no longer executable. @ text @d1 1 a1 1 /* $NetBSD: rtld_start.S,v 1.13 2002/12/04 01:19:37 thorpej Exp $ */ d87 15 a102 4 slwi %r11,%r11,2 add %r0,%r11,%r11 add %r11,%r11,%r0 ENTRY_NOPROFILE(_rtld_bind_secureplt_start) d106 1 @ 1.14.2.1 log @Sync with HEAD @ text @d1 1 a1 1 /* $NetBSD: rtld_start.S,v 1.15 2011/02/10 02:28:20 matt Exp $ */ d87 4 a92 15 stw %r0,20(%r1) /* * Instead of division which is costly we will use multiplicative * inverse. a / n = ((a * inv(n)) >> 32) * where inv(n) = (0x100000000 + n - 1) / n */ mr %r0,%r11 lis %r11,0x10000000b/12@@h # load multiplicative inverse of 12 ori %r11,%r11,0x10000000b/12@@l mulhwu %r11,%r11,%r0 # get high half of multiplication b 1f ENTRY_NOPROFILE(_rtld_bind_bssplt_start) stwu %r1,-160(%r1) a94 1 1: @ 1.14.2.2 log @Sync with HEAD @ text @d1 1 a1 1 /* $NetBSD$ */ d97 2 a98 2 lis %r11,0x15555556@@h # load multiplicative inverse of 12 ori %r11,%r11,0x15555556@@l @ 1.13 log @Bintuils-current initializes the GOT entries to 0 (instead of the base-relative offsets that were placed there previously), so we must use a different mechanism to compute our reloc base. Patch from Charles Hannum. @ text @d1 1 a1 1 /* $NetBSD: rtld_start.S,v 1.12 2002/10/31 20:23:25 matt Exp $ */ d47 9 a55 11 bl _GLOBAL_OFFSET_TABLE_-4@@local mflr %r31 # r31 = (real) GOT lwz %r28,0(%r31) # base-relative &_DYNAMIC bl 0f # lr = next instruction b _DYNAMIC@@local 0: mflr %r30 lwz %r29,0(%r30) # load instruction contents rlwinm %r29,%r29,0,6,29 # extract PC offset add %r3,%r29,%r30 # r3 = &_DYNAMIC sub %r28,%r3,%r28 d57 1 a57 1 bl _rtld_relocate_nonplt_self@@plt d62 1 a62 1 bl _rtld@@plt # _start = _rtld(sp, relocbase) d78 1 a79 1 .globl _rtld_bind_start d82 10 a91 1 _rtld_bind_start: d103 1 a103 1 bl _rtld_bind@@plt # _rtld_bind(obj, reloff) d115 1 d128 2 a129 2 lis %r12,0 # lis 12,_rtld_bind_start@@ha addi %r12,%r12,0 # addi 12,12,_rtld_bind_start@@l @ 1.12 log @Convert to register prefixes. @ text @d1 1 a1 1 /* $NetBSD: rtld_start.S,v 1.11 2002/10/05 11:59:06 mycroft Exp $ */ d47 1 a47 1 bl _GLOBAL_OFFSET_TABLE_@@local-4 d49 1 a49 3 lwz %r30,_GLOBAL_OFFSET_TABLE_@@got(31) # the linker thought GOT were ... lwz %r3,_DYNAMIC@@got(%r31) d51 8 a58 2 subf %r4,%r30,%r31 # r4 = relocbase add %r3,%r3,%r4 # r3 = &_DYNAMIC a60 1 subf 4,30,31 # r4 = relocbase d63 1 @ 1.11 log @Minor cleanup. @ text @d1 1 a1 1 /* $NetBSD: rtld_start.S,v 1.10 2002/09/25 07:27:53 mycroft Exp $ */ d39 7 a45 7 stwu 1,-48(1) stw 3,12(1) # argc stw 4,16(1) # argv stw 5,20(1) # envp /* stw 6,24(1) # obj (always 0) */ /* stw 7,28(1) # cleanup (always 0) */ stw 8,32(1) # ps_strings d48 2 a49 2 mflr 31 # r31 = (real) GOT lwz 30,_GLOBAL_OFFSET_TABLE_@@got(31) d51 1 a51 1 lwz 3,_DYNAMIC@@got(31) d53 2 a54 2 subf 4,30,31 # r4 = relocbase add 3,3,4 # r3 = &_DYNAMIC d58 2 a59 2 lwz 3,16(1) addi 3,3,-12 # sp = &argv[-3] /* XXX */ d61 1 a61 1 mtlr 3 d63 6 a68 6 lwz 3,12(1) # argc lwz 4,16(1) # argv lwz 5,20(1) # envp lwz 6,-8(4) # obj = sp[1] (== argv[-2]) lwz 7,-12(4) # cleanup = sp[0] (== argv[-3]) lwz 8,32(1) # ps_strings d70 1 a70 1 addi 1,1,48 d73 1 a73 1 li 0,1 # _exit() d81 1 a81 1 stwu 1,-160(1) d83 6 a88 6 stw 0,20(1) mflr 0 stw 0,16(1) # save lr mfcr 0 stw 0,12(1) # save cr stmw 3,24(1) # save r3-r31 d90 2 a91 2 mr 3,12 # obj mr 4,11 # reloff d93 1 a93 1 mtctr 3 d95 6 a100 6 lmw 3,24(1) # load r3-r31 lwz 0,12(1) # restore cr mtcr 0 lwz 0,16(1) # restore lr mtlr 0 lwz 0,20(1) d102 1 a102 1 addi 1,1,160 d109 4 a112 4 slwi 11,11,2 addis 11,11,0 # addis 11,11,jmptab@@ha lwz 11,0(11) # lwz 11,jmptab@@l(11) mtctr 11 d116 5 a120 5 lis 12,0 # lis 12,_rtld_bind_start@@ha addi 12,12,0 # addi 12,12,_rtld_bind_start@@l mtctr 12 lis 12,0 # lis 12,obj@@ha addi 12,12,0 # addi 12,12,obj@@l @ 1.10 log @Push the _rtld_bind() interface into MD code -- it's just a trivial wrapper anyway. @ text @d1 1 a1 1 /* $NetBSD: rtld_start.S,v 1.9 2002/09/12 17:18:40 mycroft Exp $ */ d5 1 a5 1 * Portions copyright 2002 Charles M. Hannum. @ 1.9 log @Update comments. @ text @d1 1 a1 1 /* $NetBSD: rtld_start.S,v 1.8 2002/09/12 17:07:26 mycroft Exp $ */ d78 1 a78 1 .globl _rtld_bind_powerpc d92 1 a92 1 bl _rtld_bind_powerpc@@plt # _rtld_bind(obj, reloff) @ 1.8 log @Pass the calculated relocation offset down to _rtld(). @ text @d1 1 a1 1 /* $NetBSD: rtld_start.S,v 1.7 2002/09/11 21:14:08 mycroft Exp $ */ d5 1 @ 1.7 log @Implement _rtld_relocate_nonplt_self() here. @ text @d1 1 a1 1 /* $NetBSD: rtld_start.S,v 1.6 2002/09/10 02:52:33 mycroft Exp $ */ d47 2 a48 2 mflr 11 # r11 = (real) GOT lwz 10,_GLOBAL_OFFSET_TABLE_@@got(11) d50 3 a52 2 lwz 3,_DYNAMIC@@got(11) subf 4,10,11 # r4 = relocbase d56 4 a59 4 lwz 4,16(1) addi 3,4,-12 # sp = &argv[-3] /* XXX */ bl _rtld@@plt # _start = _rtld(sp) @ 1.6 log @Remove unneeded cruft from _rtld_start. @ text @d1 1 a1 1 /* $NetBSD: rtld_start.S,v 1.5 2002/09/10 02:24:51 mycroft Exp $ */ d50 4 a53 11 subf 9,10,11 # r9 = displacement lwz 8,_GOT_END_@@got(11) add 8,8,9 # add the displacement 1: lwz 3,0(11) add 3,3,9 # add the displacement stw 3,0(11) addi 11,11,4 # r11++ cmplw 0,11,8 # done? blt 1b @ 1.5 log @Shorten the startup sequence by a few instructions. @ text @d1 1 a1 1 /* $NetBSD: rtld_start.S,v 1.4 2001/09/26 04:06:43 mycroft Exp $ */ a47 7 subi 3,11,4 # r3 = _GLOBAL_OFFSET_TABLE_-4 dcbst 0,3 # sync i-cache with d-cache sync icbi 0,3 isync d59 1 a59 1 cmpl 0,11,8 # done? @ 1.4 log @In the `I can't believe it's been broken all this time' department: _rtld_bind_start must save and restore the condition codes. Varargs functions (like, say, printf()) depend on the state of cr1 to determine whether they need to store floating point registers in the save area. Without this, the first call to any particular varargs function will fail if floating point values were passed. @ text @d1 1 a1 1 /* $NetBSD: rtld_start.S,v 1.3 1999/05/21 08:00:11 tsubai Exp $ */ d46 3 a48 6 bl 1f .long _GLOBAL_OFFSET_TABLE_-.-4 1: mflr 3 lwz 4,0(3) add 3,3,4 # r3 = _GLOBAL_OFFSET_TABLE_ - 4 a54 1 addi 11,3,4 # r11 = (real) GOT @ 1.4.2.1 log @Apply patch (request by skrll in ticket #1702): Bring "ld.elf_so" (mostly) in sync with NetBSD-current: - MI and MD (e.g. under NetBSD-alpha) performance improvements - RTLD_SELF, RTLD_NEXT, RTLD_DEFAULT support - much better structured code - closes PR bin/25464 @ text @d1 1 a1 1 /* $NetBSD: rtld_start.S,v 1.13 2002/12/04 01:19:37 thorpej Exp $ */ a4 1 * Portions copyright 2002 Charles M. Hannum d38 47 a84 34 stwu %r1,-48(%r1) stw %r3,12(%r1) # argc stw %r4,16(%r1) # argv stw %r5,20(%r1) # envp /* stw %r6,24(%r1) # obj (always 0) */ /* stw %r7,28(%r1) # cleanup (always 0) */ stw %r8,32(%r1) # ps_strings bl _GLOBAL_OFFSET_TABLE_-4@@local mflr %r31 # r31 = (real) GOT lwz %r28,0(%r31) # base-relative &_DYNAMIC bl 0f # lr = next instruction b _DYNAMIC@@local 0: mflr %r30 lwz %r29,0(%r30) # load instruction contents rlwinm %r29,%r29,0,6,29 # extract PC offset add %r3,%r29,%r30 # r3 = &_DYNAMIC sub %r28,%r3,%r28 mr %r4,%r28 # r4 = relocbase bl _rtld_relocate_nonplt_self@@plt lwz %r3,16(%r1) addi %r3,%r3,-12 # sp = &argv[-3] /* XXX */ mr %r4,%r28 # r4 = relocbase bl _rtld@@plt # _start = _rtld(sp, relocbase) mtlr %r3 lwz %r3,12(%r1) # argc lwz %r4,16(%r1) # argv lwz %r5,20(%r1) # envp lwz %r6,-8(%r4) # obj = sp[1] (== argv[-2]) lwz %r7,-12(%r4) # cleanup = sp[0] (== argv[-3]) lwz %r8,32(%r1) # ps_strings d86 1 a86 1 addi %r1,%r1,48 d89 1 a89 1 li %r0,1 # _exit() d94 1 a94 1 .globl _rtld_bind d97 1 a97 1 stwu %r1,-160(%r1) d99 18 a116 18 stw %r0,20(%r1) mflr %r0 stw %r0,16(%r1) # save lr mfcr %r0 stw %r0,12(%r1) # save cr stmw %r3,24(%r1) # save r3-r31 mr %r3,%r12 # obj mr %r4,%r11 # reloff bl _rtld_bind@@plt # _rtld_bind(obj, reloff) mtctr %r3 lmw %r3,24(%r1) # load r3-r31 lwz %r0,12(%r1) # restore cr mtcr %r0 lwz %r0,16(%r1) # restore lr mtlr %r0 lwz %r0,20(%r1) d118 1 a118 1 addi %r1,%r1,160 d125 4 a128 4 slwi %r11,%r11,2 addis %r11,%r11,0 # addis 11,11,jmptab@@ha lwz %r11,0(%r11) # lwz 11,jmptab@@l(11) mtctr %r11 d132 5 a136 5 lis %r12,0 # lis 12,_rtld_bind_start@@ha addi %r12,%r12,0 # addi 12,12,_rtld_bind_start@@l mtctr %r12 lis %r12,0 # lis 12,obj@@ha addi %r12,%r12,0 # addi 12,12,obj@@l @ 1.3 log @syncicache is needed... @ text @d1 1 a1 1 /* $NetBSD: rtld_start.S,v 1.2 1999/04/18 19:40:07 ws Exp $ */ d98 1 d102 2 d111 3 d117 1 a117 1 lmw 3,24(1) # load r3-r31 @ 1.3.8.1 log @Pull up revision 1.4 (requested by skrll): Add init/fini section support in crtbegin and crtend, and introduce support for DWARF2 exception handling. Fixes PR#12865, PR#13488, PR#13489, and PR#13491. Also fix ld.elf_so to deal appropriately. @ text @d1 1 a1 1 /* $NetBSD: rtld_start.S,v 1.3 1999/05/21 08:00:11 tsubai Exp $ */ a97 1 a100 2 mfcr 0 stw 0,12(1) # save cr a107 3 lmw 3,24(1) # load r3-r31 lwz 0,12(1) # restore cr mtcr 0 d111 1 a111 1 @ 1.2 log @Add code to use the kernel provided page size. Enable this on the powerpc only for now. @ text @d1 1 a1 1 /* $NetBSD: rtld_start.S,v 1.1 1998/11/24 11:34:31 tsubai Exp $ */ d52 5 @ 1.1 log @Add powerpc support. @ text @d1 1 a1 1 /* $NetBSD:$ */ a51 5 dcbst 0,3 # sync i-cache with d-cache sync icbi 0,3 isync @