head 1.2; access; symbols perseant-exfatfs-base-20250801:1.2 perseant-exfatfs-base-20240630:1.2 perseant-exfatfs:1.2.0.46 perseant-exfatfs-base:1.2 cjep_sun2x:1.2.0.44 cjep_sun2x-base:1.2 cjep_staticlib_x-base1:1.2 cjep_staticlib_x:1.2.0.42 cjep_staticlib_x-base:1.2 phil-wifi-20200421:1.2 phil-wifi-20200411:1.2 phil-wifi-20200406:1.2 pgoyette-compat-merge-20190127:1.2 pgoyette-compat-20190127:1.2 pgoyette-compat-20190118:1.2 pgoyette-compat-1226:1.2 pgoyette-compat-1126:1.2 pgoyette-compat-1020:1.2 pgoyette-compat-0930:1.2 pgoyette-compat-0906:1.2 pgoyette-compat-0728:1.2 pgoyette-compat-0625:1.2 pgoyette-compat-0521:1.2 pgoyette-compat-0502:1.2 pgoyette-compat-0422:1.2 pgoyette-compat-0415:1.2 pgoyette-compat-0407:1.2 pgoyette-compat-0330:1.2 pgoyette-compat-0322:1.2 pgoyette-compat-0315:1.2 pgoyette-compat:1.2.0.40 pgoyette-compat-base:1.2 perseant-stdc-iso10646:1.2.0.38 perseant-stdc-iso10646-base:1.2 prg-localcount2-base3:1.2 prg-localcount2-base2:1.2 prg-localcount2-base1:1.2 prg-localcount2:1.2.0.36 prg-localcount2-base:1.2 pgoyette-localcount-20170426:1.2 bouyer-socketcan-base1:1.2 pgoyette-localcount-20170320:1.2 bouyer-socketcan:1.2.0.34 bouyer-socketcan-base:1.2 pgoyette-localcount-20170107:1.2 pgoyette-localcount-20161104:1.2 localcount-20160914:1.2 pgoyette-localcount-20160806:1.2 pgoyette-localcount-20160726:1.2 pgoyette-localcount:1.2.0.32 pgoyette-localcount-base:1.2 netbsd-5-2-3-RELEASE:1.2 netbsd-5-1-5-RELEASE:1.2 yamt-pagecache-base9:1.2 yamt-pagecache-tag8:1.2 tls-earlyentropy:1.2.0.28 tls-earlyentropy-base:1.2 riastradh-xf86-video-intel-2-7-1-pre-2-21-15:1.2 riastradh-drm2-base3:1.2 netbsd-5-2-2-RELEASE:1.2 netbsd-5-1-4-RELEASE:1.2 netbsd-5-2-1-RELEASE:1.2 netbsd-5-1-3-RELEASE:1.2 agc-symver:1.2.0.30 agc-symver-base:1.2 tls-maxphys-base:1.2 yamt-pagecache-base8:1.2 netbsd-5-2:1.2.0.26 yamt-pagecache-base7:1.2 netbsd-5-2-RELEASE:1.2 netbsd-5-2-RC1:1.2 yamt-pagecache-base6:1.2 yamt-pagecache-base5:1.2 yamt-pagecache-base4:1.2 netbsd-5-1-2-RELEASE:1.2 netbsd-5-1-1-RELEASE:1.2 yamt-pagecache-base3:1.2 yamt-pagecache-base2:1.2 yamt-pagecache:1.2.0.24 yamt-pagecache-base:1.2 bouyer-quota2-nbase:1.2 bouyer-quota2:1.2.0.22 bouyer-quota2-base:1.2 matt-nb5-pq3:1.2.0.20 matt-nb5-pq3-base:1.2 netbsd-5-1:1.2.0.18 netbsd-5-1-RELEASE:1.2 netbsd-5-1-RC4:1.2 netbsd-5-1-RC3:1.2 netbsd-5-1-RC2:1.2 netbsd-5-1-RC1:1.2 netbsd-5-0-2-RELEASE:1.2 netbsd-5-0-1-RELEASE:1.2 jym-xensuspend-nbase:1.2 netbsd-5-0:1.2.0.16 netbsd-5-0-RELEASE:1.2 netbsd-5-0-RC4:1.2 netbsd-5-0-RC3:1.2 netbsd-5-0-RC2:1.2 jym-xensuspend:1.2.0.14 jym-xensuspend-base:1.2 netbsd-5-0-RC1:1.2 netbsd-5:1.2.0.12 netbsd-5-base:1.2 mjf-devfs2:1.2.0.10 mjf-devfs2-base:1.2 yamt-pf42-base4:1.2 yamt-pf42-base3:1.2 hpcarm-cleanup-nbase:1.2 yamt-pf42-base2:1.2 yamt-pf42:1.2.0.8 yamt-pf42-base:1.2 keiichi-mipv6:1.2.0.6 keiichi-mipv6-base:1.2 cube-autoconf:1.2.0.4 cube-autoconf-base:1.2 hpcarm-cleanup:1.2.0.2 hpcarm-cleanup-base:1.2 netbsd-1-3-PATCH003:1.1 netbsd-1-3-PATCH003-CANDIDATE2:1.1 netbsd-1-3-PATCH003-CANDIDATE1:1.1 netbsd-1-3-PATCH003-CANDIDATE0:1.1 netbsd-1-3-PATCH002:1.1 netbsd-1-3-PATCH001:1.1 netbsd-1-3-RELEASE:1.1 netbsd-1-3-BETA:1.1 netbsd-1-3:1.1.0.2 netbsd-1-3-base:1.1; locks; strict; comment @# @; 1.2 date 99.01.10.17.33.11; author christos; state dead; branches; next 1.1; 1.1 date 96.12.16.20.38.09; author cgd; state Exp; branches; next ; desc @@ 1.2 log @Moved via repository copy to arch/alpha @ text @/* $NetBSD: rtld_start.S,v 1.1 1996/12/16 20:38:09 cgd Exp $ */ /* * Copyright 1996 Matt Thomas * 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 .extern _GLOBAL_OFFSET_TABLE_ LEAF(_rtld_start, 0) /* XXX */ .set noreorder br pv, $33 $33: LDGP(pv) /* save away the stack pointer */ lda s0, 0(sp) /* get argc from stack */ lda sp, -16(sp) /* save ps_strings pointer */ mov a3, s1 /* Step 1 -- Figure out the displacement */ br t2, $34 /* get our PC */ $34: ldiq t3, $34 /* get where the linker thought we were */ subq t2, t3, t8 /* calculate the displacement */ /* Step 2 -- Find bounds of global offset table */ lda t5, _GLOBAL_OFFSET_TABLE_ addq t8, t5, t9 /* add the displacement */ #if defined(OLD_GOT) ldq t4, 0(t9) /* Get the address of dynamic table */ #else lda t4, _DYNAMIC #endif addq t8, t4, t10 /* add the displacement */ /* * Step 3 -- Every entry in the global offset table needs to * modified for the displacement before any code will work. */ $35: ldq t1, 0(t9) /* load the value */ addq t8, t1, t1 /* add the displacement */ stq t1, 0(t9) /* save the new value */ lda t9, 8(t9) /* point to next entry */ cmpult t9, t10, t1 /* are we done? */ bne t1, $35 /* no, do more */ /* * Ya! Things are far enough so we can do some dynamic linking! */ lda a0, -16(s0) CALL(_rtld) /* v0 = _rtld(sp); */ ldq a1, -16(s0) /* our atexit function */ ldq a2, -8(s0) /* obj_main entry */ lda sp, 16(sp) /* readjust our stack */ mov s0, a0 /* stack pointer */ mov s1, a3 /* ps_strings pointer */ mov v0, t12 jsr ra, (v0), 0 /* (*_start)(sp, cleanup, obj); */ ldgp gp, 0(ra) CALL(exit) halt END(_rtld_start) .set noat .globl _rtld_bind_start .ent _rtld_bind_start _rtld_bind_start: lda sp, -168(sp) .frame sp, 168, $26 /* Preserve all registers that C normally doesn't. */ stq $26, 0(sp) stq $0, 8(sp) stq $1, 16(sp) stq $2, 24(sp) stq $3, 32(sp) stq $4, 40(sp) stq $5, 48(sp) stq $6, 56(sp) stq $7, 64(sp) stq $8, 72(sp) stq $16, 80(sp) stq $17, 88(sp) stq $18, 96(sp) stq $19, 104(sp) stq $20, 112(sp) stq $21, 120(sp) stq $22, 128(sp) stq $23, 136(sp) stq $24, 144(sp) stq $25, 152(sp) stq $29, 160(sp) .mask 0x27ff01ff, -168 /* Set up our $gp */ br gp, $100 $100: ldgp gp, 0(gp) .prologue 1 /* Set up the arguments for _rtld_bind. */ ldq a0, 8(t12) /* object structure */ mov at_reg, a1 /* offset of reloc entry */ CALL(_rtld_bind) /* Move the destination address into position. */ mov $0, $27 /* Restore program registers. */ ldq $26, 0(sp) ldq $0, 8(sp) ldq $1, 16(sp) ldq $2, 24(sp) ldq $3, 32(sp) ldq $4, 40(sp) ldq $5, 48(sp) ldq $6, 56(sp) ldq $7, 64(sp) ldq $8, 72(sp) ldq $16, 80(sp) ldq $17, 88(sp) ldq $18, 96(sp) ldq $19, 104(sp) ldq $20, 112(sp) ldq $21, 120(sp) ldq $22, 128(sp) ldq $23, 136(sp) ldq $24, 144(sp) ldq $25, 152(sp) ldq $29, 160(sp) /* Flush the Icache after having modified the .plt code. */ imb /* Clean up and turn control to the destination */ lda sp, 168(sp) jmp $31, ($27) .end _rtld_bind_start @ 1.1 log @First cut at an ELF shared loader. Originally from John Polstra's FreeBSD elf kit, then hacked on by Matt Thomas , then by me (to make it work with new versions of the toolchain, etc.). This runs, but it's in serious need of cleaning and/or a fair bit of reworking. See the README file for more information, and a list of things to do. @ text @d1 1 a1 1 /* $NetBSD$ */ @