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authorRoland McGrath <roland@gnu.org>1996-07-18 08:43:26 +0000
committerRoland McGrath <roland@gnu.org>1996-07-18 08:43:26 +0000
commit49b986270035c7f86c3dc85383fd1da2e413fef9 (patch)
tree5b1236203c804457e180793a67e3e0e4b489a3d8 /sysdeps/alpha/elf/start.S
parentd7bca0d30b5d3c8ae8421a1994ba24b1b56370d7 (diff)
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Thu Jul 18 04:33:21 1996 Roland McGrath <roland@baalperazim.frob.com> cvs/libc-960718
	* sysdeps/mach/hurd/errnos.awk: Move EWOULDBLOCK check before errno==0
	check.  mib's clueless hacking broke it.

Thu Jul 18 04:27:21 1996  Roland McGrath  <roland@delasyd.gnu.ai.mit.edu>

	* Makerules ($(libdir)/libc.so): Add missing / after $(cryptobjdir).

Wed Jul 17 10:54:20 1996  David Mosberger-Tang  <davidm@azstarnet.com>

	* sysdeps/unix/sysv/linux/alpha/start.S: Move to ...
	* sysdeps/alpha/elf/start.S: here.

	* misc/sys/ustat.h: New file.
	* misc/ustat.h: Ditto.
	* sysdeps/generic/ustatbits.h: Ditto.
	* libc-orig/sysdeps/stub/ustat.c: Ditto.
	* sysdeps/unix/sysv/linux/ustatbits.h: Ditto.
	* misc/Makefile (headers): Mention ustat.h, sys/ustat.h, and
 	ustatbits.h.
	(routines): Mention ustat.

	* sysdeps/unix/sysv/linux/syscalls.list: Mention klogctl in
 	alphabetically correct place.  Mention ustat.

	* sysdeps/unix/alpha/sysdep.S: Make errno a bss symbol, not a
	common symbol (makes errno accessible from gdb).

	* login/pututline_r.c (pututline_r): Test ut_id in repositioning
	test, not ut_type.

	* login/logwtmp.c (logwtmp): Reimplemented.  Must ensure that a
 	record always gets appended at end of file (wtmp is a log file,
 	after all).  Set ut_type to DEAD_PROCESS if name is empty.

	* login/getutid_r.c (getutid_r): Handle search for UT_TYPE in
	separate loop from search for UT_ID.  Fix code so it is in
	sync with Unix man page.

	* login/getutline_r.c (getutline_r): Stop searching only if
 	ut_line matches and type is either USER_PROCESS or LOGIN_PROCESS.

Tue Jul 16 15:06:18 1996  David Mosberger-Tang  <davidm@azstarnet.com>

	* sysdeps/unix/sysv/linux/netinet/in.h: Base on <linux/in.h> to
 	avoid duplicate declarations.

Sun Jul 14 19:08:55 1996  David Mosberger-Tang  <davidm@azstarnet.com>

	* manual/maint.texi (Supported Configurations): Add alpha-gnu-linux
	and alpha-gnu-linuxecoff targets.

Fri Jul 12 16:58:44 1996  David Mosberger-Tang  <davidm@azstarnet.com>

	* sysdeps/unix/sysv/linux/netinet/in.h: Declare bindresvport().

Sat Jun 22 23:30:07 1996  David Mosberger-Tang  <davidm@azstarnet.com>

	* resolv/res_send.c (res_send): Declare FROMLEN as size_t instead
	of int.

	* resolv/res_comp.c (res_hnok): Use empty statement in place
	of NULL (which generates a "useless expression" warning in
	gcc).
Diffstat (limited to 'sysdeps/alpha/elf/start.S')
-rw-r--r--sysdeps/alpha/elf/start.S104
1 files changed, 104 insertions, 0 deletions
diff --git a/sysdeps/alpha/elf/start.S b/sysdeps/alpha/elf/start.S
new file mode 100644
index 0000000000..c534d6987b
--- /dev/null
+++ b/sysdeps/alpha/elf/start.S
@@ -0,0 +1,104 @@
+/* Startup code for Alpha/ELF.
+Copyright (C) 1993, 1995, 1996 Free Software Foundation, Inc.
+Contributed by Richard Henderson <rth@tamu.edu>
+
+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>
+
+	.text
+	.globl __start
+	.align 3
+	.ent __start, 0
+__start:
+	.frame fp, 0, zero
+	mov	zero, fp
+	br	gp, 1f
+1:	ldgp	gp, 0(gp)
+	.prologue 1
+
+  /* Save v0.  When starting a binary via the dynamic linker, s0
+     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.  */
+	mov	v0, s0
+
+  /* Do essential libc initialization (sp points to argc, argv, and envp)  */
+	jsr	ra, __libc_init_first
+	ldgp	gp, 0(ra)
+
+  /* Now that we have the proper stack frame, register library termination
+     function, if there is any:  */
+
+	beq	s0, 1f
+	mov	s0, a0
+	jsr	ra, atexit
+	ldgp	gp, 0(ra)
+1:
+
+  /* Extract the arguments and environment as encoded on the stack.  */
+	ldl	a0, 0(sp)	/* get argc */
+	lda	a1, 8(sp)	/* get argv */
+	s8addq	a0, a1, a2	/* get envp */
+	addq	a2, 8, a2
+	stq	a2, _environ
+
+	mov	a0, s0		/* tuck them away */
+	mov	a1, s1
+	mov	a2, s2
+
+#ifdef HAVE_INITFINI
+  /* Call _init, the entry point to our own .init section.  */
+	jsr	ra, _init
+	ldgp	gp, 0(ra)
+
+  /* Register our .fini section with atexit.  */
+	lda	a0, _fini
+	jsr	ra, atexit
+	ldgp	gp, 0(ra)
+#else
+  /* initialize constructors: */
+	jsr	ra, __main
+	ldgp	gp, 0(ra)
+#endif
+	mov	s0, a0
+	mov	s1, a1
+	mov	s2, a2
+
+  /* Call the user's main and exit with its return value.  */
+	jsr	ra, main
+	ldgp	gp, 0(ra)
+
+	mov	v0, a0
+	jsr	ra, exit
+
+  /* Die very horribly if exit returns.  Call_pal hlt is callable from
+     kernel mode only; this will result in an illegal instruction trap.  */
+	call_pal 0
+END(__start)
+
+/* Define a symbol for the first piece of initialized data.  */
+	.data
+	.globl __data_start
+__data_start:
+	.long 0
+
+#ifdef __ELF__
+	.size __data_start, 4
+	.type __data_start, @object
+#endif
+
+weak_alias(__data_start, data_start)