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author | Ulrich Drepper <drepper@redhat.com> | 1997-06-29 22:05:27 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 1997-06-29 22:05:27 +0000 |
commit | 5ae3e846b9e5dc0c32b581dff29aaf8587f89bfa (patch) | |
tree | d7042b5844f386c3843169e7bca1de968acfce5e /sysdeps/sparc64/elf/start.S | |
parent | bca973bcd954bb43e0d55b6fe3dd0648df52466a (diff) | |
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Update.cvs/libc-ud-970629
1997-06-29 23:43 Ulrich Drepper <drepper@cygnus.com>
* config.make.in: Define need-nopic-initfini.
* configure.in: Write out nopic_initfini.
* csu/Makefile: Generate no-PIC crt code if need-nopic-initfini
is defined.
* sysdeps/i386/fpu/fraiseexcpt.c: Correct FE_INEXACT case.
* sysdeps/sparc/rem.S: Get trap definition properly.
* sysdeps/sparc/sdiv.S: Likewise.
* sysdeps/sparc/udiv.S: Likewise.
* sysdeps/sparc/urem.S: Likewise.
* sysdeps/sparc/setjmp.S: Include <sys/trap.h>.
* sysdeps/sparc/sys/trap.h: New file.
* sysdeps/unix/sysv/linux/sparc/sys/trap.h: New file.
1997-06-25 10:26 Thorsten Kukuk <kukuk@uni-paderborn.de>
* sysdeps/generic/rpc/auth.h: Add xdr_opaque_auth declaration.
1997-06-29 10:34 Fila Kolodny <fila@ibi.com>
* sysdeps/mach/hurd/select.c (__select): Change MACH_MSG_SIZE_INTEGER_T
to MACH_MSG_TYPE_INTEGER_T.
1997-06-29 01:04 Richard Henderson <richard@gnu.ai.mit.edu>
Initial sparc64-linux support:
* configure.in: Recognize sparc64 as being different from sparc.
* io/ftwtest-sh: Only invoke ld.so if it exists.
* math/Makefile (LDLIBS-*): Change from libm to math/libm to get
static tests to link. Honour $(omit-long-double-fcts) == yes.
* math/libm-test.c (test_single_exception): The argument to
fetestexcept is `int' not `fexcept_t'.
* shlib-versions: Recognize sparc64.
* signal/signal.h: Add typedef for stack_t.
* stdio-common/_itoa.c: Defaulting UMUL_TIME==UDIV_TIME is broken.
Attempt to fix up most of this by cleaning up assumptions below,
but give up and change the defaults.
* setjmp/longjmp.c: Moved to ...
* sysdeps/generic/longjmp.c: ... here.
* setjmp/sigjmp.c: Moved to ...
* sysdeps/generic/sigjmp.c: ... here.
* sysdeps/sparc/bsd-_setjmp.S [PIC]: There wasn't even valid asm here.
Ought to fix up gas to catch these silly things properly.
* sysdeps/sparc/bsd-setjmp.S: Likewise.
* sysdeps/unix/sysv/linux/sparc/errno.c: Remove.
* sysdeps/unix/sysv/linux/sparc/kernel_sigaction.h: Remove.
* sysdeps/unix/sysv/linux/sparc/kernel_stat.h: Tell xstat about
the unused fields.
* sysdeps/sparc/sparc64/add_n.s: Moved to ...
* sysdeps/sparc64/add_n.S: ... here. Fix up %g4 and stack usage.
* sysdeps/sparc/sparc64/addmul_1.s: Likewise.
* sysdeps/sparc/sparc64/gmp-mparam.h: Likewise.
* sysdeps/sparc/sparc64/lshift.s: Likewise.
* sysdeps/sparc/sparc64/mul_1.s: Likewise.
* sysdeps/sparc/sparc64/rshift.s: Likewise.
* sysdeps/sparc/sparc64/sub_n.s: Likewise.
* sysdeps/sparc/sparc64/submul_1.s: Likewise.
* sysdeps/sparc64/Implies: New file.
* sysdeps/sparc64/Makefile: Likewise.
* sysdeps/sparc64/bits/endian.h: Likewise.
* sysdeps/sparc64/bsd-_setjmp.S: Likewise.
* sysdeps/sparc64/bsd-setjmp.S: Likewise.
* sysdeps/sparc64/dl-machine.h: Likewise.
* sysdeps/sparc64/elf/Makefile: Likewise.
* sysdeps/sparc64/elf/crtbegin.S: Likewise.
* sysdeps/sparc64/elf/crtbeginS.S: Likewise.
* sysdeps/sparc64/elf/crtend.S: Likewise.
* sysdeps/sparc64/elf/crtendS.S: Likewise.
* sysdeps/sparc64/elf/start.S: Likewise.
* sysdeps/sparc64/fpu_control.h: Likewise.
* sysdeps/unix/sysv/linux/sparc64/Makefile: Likewise.
* sysdeps/unix/sysv/linux/sparc64/__longjmp.S: Likewise.
* sysdeps/unix/sysv/linux/sparc64/bits/setjmp.h: Likewise.
* sysdeps/unix/sysv/linux/sparc64/bits/types.h: Likewise.
* sysdeps/unix/sysv/linux/sparc64/brk.S: Likewise.
* sysdeps/unix/sysv/linux/sparc64/clone.S: Likewise.
* sysdeps/unix/sysv/linux/sparc64/fork.S: Likewise.
* sysdeps/unix/sysv/linux/sparc64/getcontext.S: Likewise.
* sysdeps/unix/sysv/linux/sparc64/init-first.h: Likewise.
* sysdeps/unix/sysv/linux/sparc64/kernel_stat.h: Likewise.
* sysdeps/unix/sysv/linux/sparc64/longjmp.S: Likewise.
* sysdeps/unix/sysv/linux/sparc64/pipe.S: Likewise.
* sysdeps/unix/sysv/linux/sparc64/profil-counter.h: Likewise.
* sysdeps/unix/sysv/linux/sparc64/setcontext.S: Likewise.
* sysdeps/unix/sysv/linux/sparc64/setjmp.S: Likewise.
* sysdeps/unix/sysv/linux/sparc64/sigjmp.S: Likewise.
* sysdeps/unix/sysv/linux/sparc64/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/sparc64/sysdep.S: Likewise.
* sysdeps/unix/sysv/linux/sparc64/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/sparc64/ucontext.h: Likewise.
1997-06-28 16:28 H.J. Lu <hjl@gnu.ai.mit.edu>
* configure.in: Add -nostartfiles -nostdlib when check for
--version-script.
1997-06-28 12:03 H.J. Lu <hjl@gnu.ai.mit.edu>
* sysdeps/powerpc/bits/endian.h: New file.
1997-06-28 20:52 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/unix/sysv/linux/syscalls.list: Add getresgid and
setresgid.
Diffstat (limited to 'sysdeps/sparc64/elf/start.S')
-rw-r--r-- | sysdeps/sparc64/elf/start.S | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/sysdeps/sparc64/elf/start.S b/sysdeps/sparc64/elf/start.S new file mode 100644 index 0000000000..334f85b129 --- /dev/null +++ b/sysdeps/sparc64/elf/start.S @@ -0,0 +1,93 @@ +/* Startup code for elf64-sparc + Copyright (C) 1997 Free Software Foundation, Inc. + Contributed by Richard Henderson <richard@gnu.ai.mit.edu>, 1997. + + 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 + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., 675 Mass Ave, + Cambridge, MA 02139, USA. */ + +#include <sysdep.h> + + + .section ".text" + .align 4 + .global _start + .type _start,#function +_start: + + /* First order of business is to load %g4 with our base address. */ + sethi %uhi(_start), %g4 + or %g4, %ulo(_start), %g4 + sllx %g4, 32, %g4 + + /* Terminate the stack frame, and reserve space for functions to + drop their arguments. */ + mov %g0, %fp + sub %sp, 6*8, %sp + + /* Save %g1. When starting a binary via the dynamic linker, %g1 + contains the address of the shared library termination function, + which we will register below with atexit() to be called by exit(). + If we are statically linked, this will be NULL. */ + + /* Do essential libc initialization (sp points to argc, argv, and envp) */ + call __libc_init_first + mov %g1, %l0 + + /* Now that we have the proper stack frame, register library termination + function, if there is any: */ + + brz,pn %l0, 1f + nop + call atexit + mov %l0, %o0 +1: + + /* Extract the arguments and environment as encoded on the stack. The + argument info starts after one register window (16 words) past the SP, + plus the bias we added, plus the magic v9 STACK_BIAS. */ + ldx [%sp+STACK_BIAS+22*8], %o0 + add %sp, STACK_BIAS+23*8, %o1 + sllx %o0, 3, %o2 + add %o2, %o1, %o2 + sethi %hi(__environ), %g2 + add %o2, 8, %o2 + add %g2, %g4, %g2 + stx %o2, [%g2+%lo(__environ)] + + mov %o0, %l0 /* tuck them away */ + mov %o1, %l1 + + /* Call _init, the entry point to our own .init section. */ + call _init + mov %o2, %l2 + + /* Register our .fini section with atexit. */ + sethi %hi(_fini), %o0 + add %o0, %g4, %o0 + call atexit + add %o0, %lo(_fini), %o0 + + /* Call the user's main and exit with its return value. */ + mov %l0, %o0 + mov %l1, %o1 + call main + mov %l2, %o2 + call exit + nop + + /* Die very horribly if exit returns. */ + illtrap 0 + + .size _start,.-_start |