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Update.
1997-08-14 03:14 Ulrich Drepper <drepper@cygnus.com> * elf/dl-minimal.c: Don't use relative #include paths. (malloc): Don't try to initialize _dl_pagesize, it already is. (__sigjmp_save, longjmp): Reformat. * sysdeps/generic/dl-sysdep.c: Implement _dl_show_auxv function to show content of auxiliary array. (_dl_sysdep_start): Remember start of auxiliary vector. * sysdeps/mach/hurd/dl-sysdep.c: (_dl_show_auxv): New dummy function. * elf/link.h: Add prototype for _dl_show_auxv. * elf/rtld.c (dl_main): Call _dl_show_auxv if LD_SHOW_AUXV envvar is present. * libio/iofdopen.c: Better prepare for use in libstdc++. * libio/iofflush.c: Likewise. * libio/iofgetpos.c: Likewise. * libio/iofgets.c: Likewise. * libio/iofopen.c: Likewise. * libio/iofputs.c: Likewise. * libio/iofread.c: Likewise. * libio/iofsetpos.c: Likewise. * libio/ioftell.c: Likewise. * libio/iofwrite.c: Likewise. * libio/iogetdelim.c: Likewise. * libio/iogets.c: Likewise. * libio/iopopen.c: Likewise. * libio/ioputs.c: Likewise. * libio/iosetbuffer.c: Likewise. * libio/iosetvbuf.c: Likewise. * libio/ioungetc.c: Likewise. * libio/iovsprintf.c: Likewise. * libio/iovsscanf.c: Likewise. * manual/creature.texi: Mention _XOPEN_SOURCE_EXTENDED in correct place. * manual/math.texi: Add comment to sincos decsription to say it's a GNU extension. Fix description of random function. * posix/fnmatch.h: Recognize Windog by _WINDOWS32 not WIN32. * posix/glob.c: Likewise. Handle stupid system headers on SunOS. Add casts for all __alloca calls. * posix/glob.h: Recognize Windog by _WINDOWS32 not WIN32. Declare additional GLOB_* constants also if _GNU_SOURCE is defined. Patches by Paul D. Smith <psmith@BayNetworks.COM>. * stdio-common/_itoa.c: Don't use relateive #include paths. * sysdeps/i386/fpu/bits/mathinline.h: Enable optimizations even for gcc 2.7. (atan): Loading 1.0 from memory does not pay off. (asinh): Fix typo. 1997-08-13 09:44 Philip Blundell <Philip.Blundell@pobox.com> * sysdeps/stub/accept.c: Use socklen_t where necessary. * sysdeps/stub/bind.c: Likewise. * sysdeps/stub/connect.c: Likewise. * sysdeps/stub/getsockname.c: Likewise. * sysdeps/stub/getsockopt.c: Likewise. * sysdeps/stub/recvfrom.c: Likewise. * sysdeps/stub/sendto.c: Likewise. * sysdeps/stub/setsockopt.c: Likewise. 1997-08-11 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * io/ftw.c (object_compare): Avoid memcmp when comparing scalar types. 1997-08-12 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * math/libm-test.c (cbrt_test): Add epsilon for long double to `cbrt (-0.001)'. 1997-08-11 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/stub/bits/string.h: Fix comment. 1997-08-01 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * elf/Makefile (routines): Remove dl-version. (dl-routines): Add it here instead. This removes dead code from libc.so. 1997-08-12 17:17 Wolfram Gloger <wmglo@dent.med.uni-muenchen.de> * malloc/thread-m.h (thread_atfork, thread_atfork_static): New macros to encapsulate pthread_atfork's functionality. * malloc/malloc.c (ptmalloc_lock_all, ptmalloc_unlock_all): New functions, registered via thread_atfork in the initialization routine or via thread_atfork_static in global scope. This ensures a consistent state of all locks across fork(). 1997-08-11 23:00:32 1997 Mark Kettenis <kettenis@phys.uva.nl> * login/programs/xtmp.c (compare_entry): Partially undo patch made by Klaus Espenlaub. There was no xtmp/utmp typo. Added comment to cclarify this. * login/programs/xtmp.h: Likewise. * posix/getopt.c: Recognize Windog by _WINDOWS32 not WIN32. Patch by Paul D. Smith <psmith@BayNetworks.COM>. 1997-08-12 13:51 Ulrich Drepper <drepper@cygnus.com> * login/getutid.c: Rename to __getutid and make getutid and getutxid weak aliases. Patch by ir. Mark M._Kettenis <kettenis@phys.uva.nl>. 1997-08-11 23:55 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/linux/Makefile [subdir=misc] (sysdep_headers): Add bits/mman.h. 1997-08-11 08:51:21 1997 H.J. Lu <hjl@gnu.ai.mit.edu> * stdlib/fmtmsg.c (fmtmsg): Add static to __libc_once_define macro. * libc.map (__progname_full, __progname): Added. 1997-08-04 08:31 H.J. Lu <hjl@gnu.ai.mit.edu> * sysdeps/unix/sysv/linux/if_index.c (if_nametoindex): Return 0 if SIOGIFINDEX is not defined. (if_indextoname): Initialize "result" to NULL. (if_nametoindex, if_nameindex): Fix ENOSYS setting. 1997-08-11 11:58 Richard Henderson <rth@cygnus.com> Sparc ISO C 9x exception handling: * sysdeps/sparc/fpu/bits/mathdef.h: New file. * sysdeps/sparc/fpu/fclrexcpt.c: New file. * sysdeps/sparc/fpu/fegetenv.c: New file. * sysdeps/sparc/fpu/fegetround.c: New file. * sysdeps/sparc/fpu/feholdexcpt.c: New file. * sysdeps/sparc/fpu/fesetenv.c: New file. * sysdeps/sparc/fpu/fesetround.c: New file. * sysdeps/sparc/fpu/feupdateenv.c: New file. * sysdeps/sparc/fpu/fgetexcptflg.c: New file. * sysdeps/sparc/fpu/fraiseexcpt.c: New file. * sysdeps/sparc/fpu/fsetexcptflg.c: New file. * sysdeps/sparc/fpu/ftestexcept.c: New file. * sysdeps/sparc/sparc32/fpu/bits/fenv.h: New file. * sysdeps/sparc/sparc64/fpu/bits/fenv.h: New file. 1997-08-11 11:58 Richard Henderson <rth@cygnus.com> Sparc64 merge: * configure.in: Change up subdirectories, rename sparc8->sparcv8. * csu/Makefile: Nuke need-nopic-initfini bits. The problem was that sparc64 ld did not recognize pic relocs at all. * elf/dl-deps.c: Include <string.h>. * elf/do-rel.h (elf_dynamic_do_rel): Take reloc address and size directly instead of the DT names to get them from. * elf/dynamic-link.h (_ELF_DYNAMIC_DO_RELOC): New macro distilled from ELF_DYNAMIC_DO_REL{,A}. Define a second version that accounts for the possibility that DT_RELA and DT_JMPPLT overlap, as such is the case on the Sparc. * elf/elf.h: Stub out Elf64_Ver*, and make them the same as the Elf32_Ver* bits. The linker does not even know to differentiate between the word sizes. Someone should examine this and figure out what the proper sizes of things should be for 64-bit hosts before the sparc64 libraries are distributed. * shlib-versions: Rename sparc64 ld.so to not conflict with sparc32 on the same machine. Move old sysdeps/sparc contents to sysdeps/sparc/sparc32, rename sparc8 subdir to sparcv8, move sysdeps/sparc64 content to sysdeps/sparc/sparc64. Same for sysdeps/unix/sysv/linux/sparc. * sysdeps/sparc/Implies: Do ieee754 here. * sysdeps/sparc/configure.in: Move from sparc32/. * sysdeps/sparc/sparc32/Implies: Do wordsize here. * sysdeps/sparc/sparc64/Implies: Likewise. * sysdeps/sparc/sparc32/dl-machine.h (elf_machine_load_address): Use uninitialized .got to find load address instead of AT_BASE, as the later does not exist when running ld.so directly. * sysdeps/sparc/sparc32/fpu/fpu_control.h: Move from ../. * sysdeps/sparc/sparc64/fpu/fpu_control.h: Likewise. * sysdeps/sparc/sparc32/udiv_qrnnd.S: Clean up PIC support. * sysdeps/sparc/sparc64/Makefile (sysdep_routines): Add s_finitel and s_signbitl for stdio. * sysdeps/sparc/sparc64/configure.in: Remove, we no longer need nopic_initfini. * sysdeps/sparc/sparc64/bsd-_setjmp.S: Remove. * sysdeps/sparc/sparc64/bsd-setjmp.S: Remove. * sysdeps/unix/sysv/linux/sparc/sparc64/bsd-_setjmp.S: New empty file. * sysdeps/unix/sysv/linux/sparc/sparc64/bsd-setjmp.S: New empty file. * sysdeps/unix/sysv/linux/sparc/sparc64/longjmp.S: Add __longjmp alias. * sysdeps/unix/sysv/linux/sparc/sparc64/setjmp.S: Add weak _setjmp and setjmp entry points. * sysdeps/sparc/sparc64/dl-machine.h: Finish real implementation. * sysdeps/sparc/sparc64/elf/crtbegin.S: Add copyright, fix PIC. * sysdeps/sparc/sparc64/elf/crtend.S: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/sigaction.h (struct sigaction): Fix sa_flags size for sparc64; add sa_restorer for kernel. * sysdeps/unix/sysv/linux/sparc/sparc64/brk.S: Fix PIC. * sysdeps/unix/sysv/linux/sparc/sparc64/clone.S: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/init-first.h: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/syscall.S: New file. 1997-08-10 18:29:08 1997 Mark Kettenis <kettenis@phys.uva.nl> * login/login.c (login): Check for correct return value of utmpname. 1997-08-11 16:49 Ulrich Drepper <drepper@cygnus.com> * time/tzset.c (__tzset_internal): Correctly handle TZ strings following incorrect old POSIX specs. Patch by Paul Eggert <eggert@twinsun.com>. * sysdeps/generic/bits/sigaction.h: Correct comment for SA_RESTART. * sysdeps/unix/bsd/osf/bits/sigaction.h: Likewise. * sysdeps/unix/sysv/linux/alpha/bits/sigaction.h: Likewise. * sysdeps/unix/sysv/linux/bits/sigaction.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/sigaction.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/sigaction.h: Likewise. * sysdeps/unix/sysv/minix/bits/sigaction.h: Likewise. * sysdeps/unix/sysv/sysv4/bits/sigaction.h: Likewise. Reported by NIIBE Yutaka <gniibe@mri.co.jp>. 1997-08-09 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * manual/math.texi: Define the macros @mul and @infinity and use them to format the multiplication and infinity signs. (FP Comparison Functions): Use @code, not @math, for C code examples. * elf/dl-profile.c: Add descriptions and implement reading of
This commit is contained in:
Ulrich Drepper
363
sysdeps/sparc/sparc32/dl-machine.h
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363
sysdeps/sparc/sparc32/dl-machine.h
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@ -0,0 +1,363 @@
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/* Machine-dependent ELF dynamic relocation inline functions. SPARC version.
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Copyright (C) 1996, 1997 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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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 Library General Public License as
|
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published by the Free Software Foundation; either version 2 of the
|
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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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Library General Public License for more details.
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|
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc.,
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59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#define ELF_MACHINE_NAME "sparc"
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#include <assert.h>
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#include <string.h>
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#include <link.h>
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#include <sys/param.h>
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/* Some SPARC opcodes we need to use for self-modifying code. */
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#define OPCODE_NOP 0x01000000 /* nop */
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#define OPCODE_CALL 0x40000000 /* call ?; add PC-rel word address */
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#define OPCODE_SETHI_G1 0x03000000 /* sethi ?, %g1; add value>>10 */
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#define OPCODE_JMP_G1 0x81c06000 /* jmp %g1+?; add lo 10 bits of value */
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#define OPCODE_SAVE_SP64 0x9de3bfc0 /* save %sp, -64, %sp */
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/* Return nonzero iff E_MACHINE is compatible with the running host. */
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static inline int
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elf_machine_matches_host (Elf32_Half e_machine)
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{
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return e_machine == EM_SPARC;
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}
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/* Return the link-time address of _DYNAMIC. Conveniently, this is the
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first element of the GOT. This must be inlined in a function which
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uses global data. */
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static inline Elf32_Addr
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elf_machine_dynamic (void)
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{
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register Elf32_Addr *got asm ("%l7");
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return *got;
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}
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/* Return the run-time load address of the shared object. */
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static inline Elf32_Addr
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elf_machine_load_address (void)
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{
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register Elf32_Addr pc __asm("%o7"), got;
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/* Utilize the fact that a local .got entry will be partially
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initialized at startup awaiting its RELATIVE fixup. */
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__asm("sethi %%hi(.Load_address),%1\n"
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".Load_address:\n\t"
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"call 1f\n\t"
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"or %1,%%lo(.Load_address),%1\n"
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"1:\tld [%%l7+%1],%1"
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: "=r"(pc), "=r"(got));
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return pc - got;
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}
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Elf32_Addr addr;
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asm (
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"add %%fp,0x44,%%o2\n\t" /* o2 = point to argc */
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"ld [%%o2 - 4],%%o0\n\t" /* o0 = load argc */
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"sll %%o0, 2, %%o0\n\t" /* o0 = argc * sizeof (int) */
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"add %%o2,%%o0,%%o2\n\t" /* o2 = skip over argv */
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"add %%o2,4,%%o2\n\t" /* skip over null after argv */
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/* Now %o2 is pointing to env, skip over that as well. */
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"1:\n\t"
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"ld [%%o2],%%o0\n\t"
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"cmp %%o0,0\n\t"
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"bnz 1b\n\t"
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"add %%o2,4,%%o2\n\t"
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/* Note that above, we want to advance the NULL after envp so
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we always add 4. */
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/* Now, search for the AT_BASE property. */
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"2:\n\t"
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"ld [%%o2],%%o0\n\t"
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"cmp %%o0,0\n\t"
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"be,a 3f\n\t"
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"or %%g0,%%g0,%0\n\t"
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"cmp %%o0,7\n\t" /* AT_BASE = 7 */
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"be,a 3f\n\t"
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"ld [%%o2+4],%0\n\t"
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"b 2b\n\t"
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"add %%o2,8,%%o2\n\t"
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/* At this point %0 has the load address for the interpreter */
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"3:\n\t"
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: "=r" (addr)
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: /* no inputs */
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: "o0", "o2");
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return addr;
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}
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#ifdef RESOLVE
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/* Perform the relocation specified by RELOC and SYM (which is fully resolved).
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MAP is the object containing the reloc. */
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static inline void
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elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
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const Elf32_Sym *sym, const struct r_found_version *version,
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Elf32_Addr *const reloc_addr)
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{
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Elf32_Addr loadbase;
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if (ELF32_R_TYPE (reloc->r_info) == R_SPARC_RELATIVE)
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{
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#ifndef RTLD_BOOTSTRAP
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if (map != &_dl_rtld_map) /* Already done in rtld itself. */
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#endif
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*reloc_addr += map->l_addr + reloc->r_addend;
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}
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else
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{
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const Elf32_Sym *const refsym = sym;
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Elf32_Addr value;
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if (sym->st_shndx != SHN_UNDEF &&
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ELF32_ST_BIND (sym->st_info) == STB_LOCAL)
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value = map->l_addr;
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else
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{
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value = RESOLVE (&sym, version, ELF32_R_TYPE (reloc->r_info));
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if (sym)
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value += sym->st_value;
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}
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value += reloc->r_addend; /* Assume copy relocs have zero addend. */
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switch (ELF32_R_TYPE (reloc->r_info))
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{
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case R_SPARC_COPY:
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if (sym->st_size > refsym->st_size
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|| (_dl_verbose && sym->st_size < refsym->st_size))
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{
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extern char **_dl_argv;
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const char *strtab;
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strtab = ((void *) map->l_addr
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+ map->l_info[DT_STRTAB]->d_un.d_ptr);
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_dl_sysdep_error (_dl_argv[0] ?: "<program name unknown>",
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": Symbol `", strtab + refsym->st_name,
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"' has different size in shared object, "
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"consider re-linking\n", NULL);
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}
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memcpy (reloc_addr, (void *) value, MIN (sym->st_size,
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refsym->st_size));
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break;
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case R_SPARC_GLOB_DAT:
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case R_SPARC_32:
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*reloc_addr = value;
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break;
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case R_SPARC_JMP_SLOT:
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reloc_addr[1] = OPCODE_SETHI_G1 | (value >> 10);
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reloc_addr[2] = OPCODE_JMP_G1 | (value & 0x3ff);
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break;
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case R_SPARC_8:
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*(char *) reloc_addr = value;
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break;
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case R_SPARC_16:
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*(short *) reloc_addr = value;
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break;
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case R_SPARC_DISP8:
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*(char *) reloc_addr = (value - (Elf32_Addr) reloc_addr);
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break;
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case R_SPARC_DISP16:
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*(short *) reloc_addr = (value - (Elf32_Addr) reloc_addr);
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break;
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case R_SPARC_DISP32:
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*reloc_addr = (value - (Elf32_Addr) reloc_addr);
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break;
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case R_SPARC_LO10:
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*reloc_addr = (*reloc_addr & ~0x3ff) | (value & 0x3ff);
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break;
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case R_SPARC_WDISP30:
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*reloc_addr = ((*reloc_addr & 0xc0000000)
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| ((value - (unsigned int) reloc_addr) >> 2));
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break;
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case R_SPARC_HI22:
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*reloc_addr = (*reloc_addr & 0xffc00000) | (value >> 10);
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break;
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case R_SPARC_NONE: /* Alright, Wilbur. */
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break;
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default:
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assert (! "unexpected dynamic reloc type");
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break;
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}
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}
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}
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static inline void
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elf_machine_lazy_rel (struct link_map *map, const Elf32_Rela *reloc)
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{
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switch (ELF32_R_TYPE (reloc->r_info))
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{
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case R_SPARC_NONE:
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break;
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case R_SPARC_JMP_SLOT:
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break;
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default:
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assert (! "unexpected PLT reloc type");
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break;
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}
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}
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#endif /* RESOLVE */
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/* Nonzero iff TYPE should not be allowed to resolve to one of
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the main executable's symbols, as for a COPY reloc. */
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#define elf_machine_lookup_noexec_p(type) ((type) == R_SPARC_COPY)
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/* Nonzero iff TYPE describes relocation of a PLT entry, so
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PLT entries should not be allowed to define the value. */
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#define elf_machine_lookup_noplt_p(type) ((type) == R_SPARC_JMP_SLOT)
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/* A reloc type used for ld.so cmdline arg lookups to reject PLT entries. */
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#define ELF_MACHINE_RELOC_NOPLT R_SPARC_JMP_SLOT
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/* The SPARC never uses Elf32_Rel relocations. */
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#define ELF_MACHINE_NO_REL 1
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/* The SPARC overlaps DT_RELA and DT_PLTREL. */
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#define ELF_MACHINE_PLTREL_OVERLAP 1
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/* Set up the loaded object described by L so its unrelocated PLT
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entries will jump to the on-demand fixup code in dl-runtime.c. */
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static inline int
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elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
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{
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Elf32_Addr *plt;
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extern void _dl_runtime_resolve (Elf32_Word);
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if (l->l_info[DT_JMPREL] && lazy)
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{
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/* The entries for functions in the PLT have not yet been filled in.
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Their initial contents will arrange when called to set the high 22
|
||||
bits of %g1 with an offset into the .rela.plt section and jump to
|
||||
the beginning of the PLT. */
|
||||
plt = (Elf32_Addr *) (l->l_addr + l->l_info[DT_PLTGOT]->d_un.d_ptr);
|
||||
|
||||
/* The beginning of the PLT does:
|
||||
|
||||
save %sp, -64, %sp
|
||||
pltpc: call _dl_runtime_resolve
|
||||
nop
|
||||
.word MAP
|
||||
|
||||
This saves the register window containing the arguments, and the
|
||||
PC value (pltpc) implicitly saved in %o7 by the call points near the
|
||||
location where we store the link_map pointer for this object. */
|
||||
|
||||
plt[0] = OPCODE_SAVE_SP64; /* save %sp, -64, %sp */
|
||||
/* Construct PC-relative word address. */
|
||||
plt[1] = OPCODE_CALL | (((Elf32_Addr) &_dl_runtime_resolve -
|
||||
(Elf32_Addr) &plt[1]) >> 2);
|
||||
plt[2] = OPCODE_NOP; /* Fill call delay slot. */
|
||||
plt[3] = (Elf32_Addr *) l;
|
||||
}
|
||||
|
||||
return lazy;
|
||||
}
|
||||
|
||||
/* This code is used in dl-runtime.c to call the `fixup' function
|
||||
and then redirect to the address it returns. */
|
||||
#define ELF_MACHINE_RUNTIME_TRAMPOLINE asm ("\
|
||||
# Trampoline for _dl_runtime_resolver
|
||||
.globl _dl_runtime_resolve
|
||||
.type _dl_runtime_resolve, @function
|
||||
_dl_runtime_resolve:
|
||||
t 1
|
||||
#call %g0
|
||||
# Pass two args to fixup: the PLT address computed from the PC saved
|
||||
# in the PLT's call insn, and the reloc offset passed in %g1.
|
||||
#ld [%o7 + 8], %o1 | Second arg, loaded from PLTPC[2].
|
||||
#call fixup
|
||||
#shrl %g1, 22, %o0 | First arg, set in delay slot of call.
|
||||
# Jump to the real function.
|
||||
#jmpl %o0, %g0
|
||||
# In the delay slot of that jump, restore the register window
|
||||
# saved by the first insn of the PLT.
|
||||
#restore
|
||||
.size _dl_runtime_resolve, . - _dl_runtime_resolve
|
||||
");
|
||||
|
||||
/* The PLT uses Elf32_Rela relocs. */
|
||||
#define elf_machine_relplt elf_machine_rela
|
||||
|
||||
|
||||
/* Mask identifying addresses reserved for the user program,
|
||||
where the dynamic linker should not map anything. */
|
||||
#define ELF_MACHINE_USER_ADDRESS_MASK ???
|
||||
|
||||
/* Initial entry point code for the dynamic linker.
|
||||
The C function `_dl_start' is the real entry point;
|
||||
its return value is the user program's entry point. */
|
||||
|
||||
#define RTLD_START __asm__ ( \
|
||||
".text\n\
|
||||
.globl _start\n\
|
||||
.type _start,@function\n\
|
||||
_start:\n\
|
||||
/* Pass pointer to argument block to _dl_start. */\n\
|
||||
add %sp,64,%o0\n\
|
||||
call _dl_start\n\
|
||||
nop\n\
|
||||
\n\
|
||||
mov %o0,%l0\n\
|
||||
\n\
|
||||
2:\n\
|
||||
call 1f\n\
|
||||
nop\n\
|
||||
1:\n\
|
||||
sethi %hi(_GLOBAL_OFFSET_TABLE_-(2b-.)),%l2\n\
|
||||
sethi %hi(_dl_default_scope),%l3\n\
|
||||
or %l2,%lo(_GLOBAL_OFFSET_TABLE_-(2b-.)),%l2\n\
|
||||
or %l3,%lo(_dl_default_scope),%l3\n\
|
||||
add %o7,%l2,%l1\n\
|
||||
# %l1 has the GOT. %l3 has _dl_default_scope GOT offset\n\
|
||||
ld [%l1+%l3],%l4\n\
|
||||
# %l4 has pointer to _dl_default_scope. Now, load _dl_default_scope [2]\n\
|
||||
ld [%l4+8],%l4\n\
|
||||
# %l4 has _dl_default_scope [2]\n\
|
||||
# call _dl_init_next until it returns 0, pass _dl_default_scope [2]\n\
|
||||
3:\n\
|
||||
call _dl_init_next\n\
|
||||
mov %l4,%o0\n\
|
||||
cmp %o0,%g0\n\
|
||||
bz,a 4f\n\
|
||||
nop\n\
|
||||
call %o0\n\
|
||||
/* Pass pointer to argument block to this init function */\n\
|
||||
add %sp,64,%o0\n\
|
||||
b,a 3b\n\
|
||||
4:\n\
|
||||
# Clear the _dl_starting_up variable and pass _dl_fini in %g1 as per ELF ABI.\n\
|
||||
sethi %hi(_dl_starting_up),%l4\n\
|
||||
sethi %hi(_dl_fini),%l3\n\
|
||||
or %l4,%lo(_dl_starting_up),%l4\n\
|
||||
or %l3,%lo(_dl_fini),%l3\n\
|
||||
# clear _dl_starting_up\n\
|
||||
ld [%l1+%l4],%l5\n\
|
||||
st %g0,[%l5]\n\
|
||||
# load out fini function for atexit in %g1\n\
|
||||
ld [%l3+%l1],%g1\n\
|
||||
# jump to the user program entry point.\n\
|
||||
jmpl %l0,%g0\n\
|
||||
nop\n\
|
||||
");
|
||||
Reference in New Issue
Block a user