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* sysdeps/powerpc/elf/libc-start.c: Use long in place of int for argc

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load, so as to work on both 32-bit and 64-bit.  Remove unnecessary
	casts.  Align __libc_stack_end to 8 bytes.

2002-09-20  Roland McGrath  <roland@redhat.com>

	* sysdeps/powerpc/fpu/s_lrint.c: Use strong_alias/weak_alias macros
	instead of asm for lrintf, __lrintf aliases.

	* sysdeps/powerpc/fpu/s_lrint.c (__lrint): Change union long array to
	int array for 32-/64-bit compatibility.
	From Steven Munroe  <sjmunroe@us.ibm.com>.
This commit is contained in:
Roland McGrath
2002-09-20 21:39:29 +00:00
parent 9db6ee8d2f
commit 1010f17b92
3 changed files with 40 additions and 17 deletions
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15
ChangeLog
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@@ -1,3 +1,18 @@
2002-09-20 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/elf/libc-start.c: Use long in place of int for argc
load, so as to work on both 32-bit and 64-bit. Remove unnecessary
casts. Align __libc_stack_end to 8 bytes.
2002-09-20 Roland McGrath <roland@redhat.com>
* sysdeps/powerpc/fpu/s_lrint.c: Use strong_alias/weak_alias macros
instead of asm for lrintf, __lrintf aliases.
* sysdeps/powerpc/fpu/s_lrint.c (__lrint): Change union long array to
int array for 32-/64-bit compatibility.
From Steven Munroe <sjmunroe@us.ibm.com>.
2002-09-17 Bruno Haible <bruno@clisp.org> 2002-09-17 Bruno Haible <bruno@clisp.org>
* sysdeps/generic/ifreq.h (__if_nextreq): New function. * sysdeps/generic/ifreq.h (__if_nextreq): New function.

13
sysdeps/powerpc/elf/libc-start.c
View File

@@ -104,7 +104,8 @@ BP_SYM (__libc_start_main) (int argc, char *__unbounded *__unbounded ubp_av,
/* ...in which case, we have argc as the top thing on the /* ...in which case, we have argc as the top thing on the
stack, followed by argv (NULL-terminated), envp (likewise), stack, followed by argv (NULL-terminated), envp (likewise),
and the auxilary vector. */ and the auxilary vector. */
argc = *(int *__unbounded) stack_on_entry; /* 32/64-bit agnostic load from stack */
argc = *(long int *__unbounded) stack_on_entry;
ubp_av = stack_on_entry + 1; ubp_av = stack_on_entry + 1;
ubp_ev = ubp_av + argc + 1; ubp_ev = ubp_av + argc + 1;
#ifdef HAVE_AUX_VECTOR #ifdef HAVE_AUX_VECTOR
@@ -113,9 +114,8 @@ BP_SYM (__libc_start_main) (int argc, char *__unbounded *__unbounded ubp_av,
++temp; ++temp;
auxvec = (ElfW(auxv_t) *)++temp; auxvec = (ElfW(auxv_t) *)++temp;
# ifndef SHARED # ifndef SHARED
_dl_aux_init ((ElfW(auxv_t) *) auxvec); _dl_aux_init (auxvec);
# endif # endif
#endif #endif
rtld_fini = NULL; rtld_fini = NULL;
@@ -124,11 +124,12 @@ BP_SYM (__libc_start_main) (int argc, char *__unbounded *__unbounded ubp_av,
INIT_ARGV_and_ENVIRON; INIT_ARGV_and_ENVIRON;
/* Initialize the __cache_line_size variable from the aux vector. */ /* Initialize the __cache_line_size variable from the aux vector. */
__aux_init_cache((ElfW(auxv_t) *) auxvec); __aux_init_cache(auxvec);
/* Store something that has some relationship to the end of the /* Store something that has some relationship to the end of the
stack, for backtraces. This variable should be thread-specific. */ stack, for backtraces. This variable should be thread-specific.
__libc_stack_end = stack_on_entry + 4; Use +8 so it works for both 32- and 64-bit. */
__libc_stack_end = stack_on_entry + 8;
#ifndef SHARED #ifndef SHARED
/* Initialize the thread library at least a bit since the libgcc /* Initialize the thread library at least a bit since the libgcc

29
sysdeps/powerpc/fpu/s_lrint.c
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@@ -1,5 +1,5 @@
/* Round floating-point to integer. PowerPC version. /* Round floating-point to integer. PowerPC version.
Copyright (C) 1997 Free Software Foundation, Inc. Copyright (C) 1997,2002 Free Software Foundation, Inc.
This file is part of the GNU C Library. This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or The GNU C Library is free software; you can redistribute it and/or
@@ -17,28 +17,35 @@
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */ 02111-1307 USA. */
/* Kludge to avoid decls that will confuse strong_alias below. */
#define __lrintf XXX__lrintf
#define __lrintl XXX__lrintl
#define lrintf XXXlrintf
#define lrintl XXXlrintl
#include "math.h" #include "math.h"
#undef __lrintf
#undef __lrintl
#undef lrintf
#undef lrintl
long int long int
__lrint (double x) __lrint (double x)
{ {
union { union
{
double d; double d;
long int ll[2]; int ll[2];
} u; } u;
asm ("fctiw %0,%1" : "=f"(u.d) : "f"(x)); asm ("fctiw %0,%1" : "=f"(u.d) : "f"(x));
return u.ll[1]; return u.ll[1];
} }
weak_alias (__lrint, lrint) weak_alias (__lrint, lrint)
/* This code will also work for a 'float' argument. */ strong_alias (__lrint, __lrintf)
asm ("\n\ weak_alias (__lrint, lrintf)
.globl __lrintf \n\
.globl lrintf \n\
.weak lrintf \n\
.set __lrintf,__lrint \n\
.set lrintf,__lrint \n\
");
#ifdef NO_LONG_DOUBLE #ifdef NO_LONG_DOUBLE
strong_alias (__lrint, __lrintl) strong_alias (__lrint, __lrintl)