+1998-04-16 07:42 Geoff Keating <geoffk@ozemail.com.au>
+
+ * Makeconfig [!build-static]: Link `static' binaries with libc_pic.a.
+ Still need *FLAGS-.o because we still sometimes build .o files.
+ * db2/Makefile: Don't build libndbm.a if !build-static.
+
+1998-04-16 07:42 Geoff Keating <geoffk@ozemail.com.au>
+
+ * configure.in: New test for broken gcc on PowerPC.
+ * sysdeps/powerpc/atomicity.h: Use result of test.
+ * linuxthreads/sysdeps/powerpc/pt-machine.h: Use result of test.
+
+ * math/libm-test.c: Update many of the epsilon to match actual
+ performance.
+
+ * sysdeps/libm-ieee754/e_exp.c: Reduce the number of branches.
+ * sysdeps/libm-ieee754/e_expf.c: Likewise.
+ * sysdeps/libm-ieee754/s_exp2.c: Likewise.
+ * sysdeps/libm-ieee754/s_exp2f.c: Likewise.
+
+ * sysdeps/libm-ieee754/e_pow.c: Correct typo.
+
+ * sysdeps/powerpc/elf/libc-start.c: New file.
+ * sysdeps/powerpc/elf/start.S: New file, use libc-start.
+ * sysdeps/powerpc/elf/start.c: Delete.
+
+ * sysdeps/unix/sysv/linux/powerpc/Dist: Remove syscall.h
+ * sysdeps/unix/sysv/linux/powerpc/syscall.h: Delete. It was unused.
+
+ * sysdeps/unix/sysv/linux/powerpc/dl-sysdep.c: Correct previous
+ few patches.
+
1998-05-06 12:51 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/i386/fpu/bits/mathinline.h (pow): Use long long int for
endif
# The static libraries.
+ifeq (yes,$(build-static))
link-libc-static = $(common-objpfx)libc.a $(gnulib) $(common-objpfx)libc.a
link-extra-libs-static = $(foreach lib,$(LDLIBS-$(@F)),$(common-objpfx)$(lib).a)
+else
+ifeq (yes,$(build-shared))
+# We can try to link the programs with lib*_pic.a...
+link-libc-static = $(link-libc) $(common-objpfx)libc_pic.a
+link-extra-libs-static = $(link-extra-libs)
+endif
+endif
ifndef gnulib
gnulib := -lgcc
libtypes = $(foreach o,$(object-suffixes-for-libc),$(libtype$o))
all-object-suffixes := .o .os .op .og .ob .oS
object-suffixes :=
-ifeq (yes,$(build-static))
CPPFLAGS-.o = $(pic-default)
CFLAGS-.o = $(filter %frame-pointer,$(+cflags))
+ifeq (yes,$(build-static))
libtype.o := lib%.a
object-suffixes += .o
endif
with static variable. */
#undef HAVE_DWARF2_UNWIND_INFO_STATIC
-/* Define is the regparm attribute shall be used for local functions
+/* Define if the regparm attribute shall be used for local functions
(gcc on ix86 only). */
#undef USE_REGPARMS
+/* Defined on PowerPC if the GCC being used has a problem with clobbering
+ certain registers (CR0, MQ, CTR, LR) in asm statements. */
+#undef BROKEN_PPC_ASM_CR0
+
/* Defined to some form of __attribute__ ((...)) if the compiler supports
a different, more efficient calling convention. */
fi
fi
+if test "$host_cpu" = powerpc ; then
+# Check for a bug present in at least versions 2.8.x of GCC
+# and versions 1.0.x of EGCS.
+AC_CACHE_CHECK(whether clobbering cr0 causes problems,libc_cv_c_asmcr0_bug,[dnl
+AC_TRY_COMPILE([int tester(int x) { asm ("" : : : "cc"); return x & 123; }],,
+ libc_cv_c_asmcr0_bug='no',
+ libc_cv_c_asmcr0_bug='yes')])
+if test "$libc_cv_c_asmcr0_bug" != 'no'; then
+ AC_DEFINE(BROKEN_PPC_ASM_CR0)
+fi
+fi
+
AC_CACHE_CHECK(for DWARF2 unwind info support, libc_cv_gcc_dwarf2_unwind_info,
[cat > conftest.c <<EOF
#line __oline__ "configure"
# Depend on libc.so so a DT_NEEDED is generated in the shared objects.
$(objpfx)libdb.so: $(common-objpfx)libc.so
+ifeq ($(build-static),yes)
subdir_install: $(inst_libdir)/libndbm.a
$(inst_libdir)/libndbm.a: $(inst_libdir)/libdb.a $(+force)
$(make-link)
+endif
ifeq ($(build-shared),yes)
subdir_install: $(inst_libdir)/libndbm.so
/* Machine-dependent pthreads configuration and inline functions.
powerpc version.
- Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+ Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Richard Henderson <rth@tamu.edu>.
#endif
/* Spinlock implementation; required. */
-extern inline int
+#if BROKEN_PPC_ASM_CR0
+static
+#else
+extern inline
+#endif
+int
testandset (int *spinlock)
{
int ret;
/* note that test-and-set(x) is the same as compare-and-swap(x, 0, 1) */
#define HAS_COMPARE_AND_SWAP
-extern inline int
+#if BROKEN_PPC_ASM_CR0
+static
+#else
+extern inline
+#endif
+int
__compare_and_swap (int *p, int oldval, int newval)
{
int ret;
check_eps ("cbrt (-27) == -3", FUNC(cbrt) (-27.0), -3.0,
CHOOSE (3e-16L, 5e-16, 0));
check_eps ("cbrt (0.970299) == 0.99", FUNC(cbrt) (0.970299), 0.99,
- CHOOSE (2e-17L, 0, 0));
+ CHOOSE (2e-17L, 2e-16, 0));
check_eps ("cbrt (0.7) == .8879040017...", FUNC(cbrt) (0.7),
0.8879040017426007084L, CHOOSE(2e-17L, 6e-16, 0));
0, CHOOSE (1e-19L, 1e-16L, 1e-7L));
check_eps ("cos (0.7) == 0.7648421872...", FUNC(cos) (0.7),
- 0.7648421872844884262L, CHOOSE(3e-17, 2e-16, 0));
+ 0.7648421872844884262L, CHOOSE(3e-17, 2e-16, 6e-8));
}
static void
check_eps ("log10 (e) == M_LOG10E", FUNC(log10) (M_El), M_LOG10El,
CHOOSE (1e-18, 0, 9e-8));
check_eps ("log10 (0.7) == -0.1549019599...", FUNC(log10) (0.7),
- -0.15490195998574316929L, CHOOSE(3e-17L, 3e-17, 0));
+ -0.15490195998574316929L, CHOOSE(3e-17L, 3e-17, 2e-8));
}
#endif
check_eps ("sinh (0.7) == 0.7585837018...", FUNC(sinh) (0.7),
- 0.75858370183953350346L, CHOOSE(6e-17L, 0, 6e-8));
+ 0.75858370183953350346L, CHOOSE(6e-17L, 2e-16, 6e-8));
}
check_eps ("sincos (0.7, &sin, &cos) puts 0.6442176872... in sin", sin_res,
0.64421768723769105367L, CHOOSE(4e-17L, 0, 0));
check_eps ("sincos (0.7, &sin, &cos) puts 0.7648421872... in cos", cos_res,
- 0.76484218728448842626L, CHOOSE(3e-17L, 2e-16, 0));
+ 0.76484218728448842626L, CHOOSE(3e-17L, 2e-16, 6e-8));
}
check ("tanh (-inf) == -1", FUNC(tanh) (minus_infty), -1);
#endif
check_eps ("tanh (0.7) == 0.6043677771...", FUNC(tanh) (0.7),
- 0.60436777711716349631L, CHOOSE(3e-17L, 0, 6e-8));
+ 0.60436777711716349631L, CHOOSE(3e-17L, 2e-16, 6e-8));
}
check_eps ("real(ccosh(0.7 + i 1.2)) == 0.45482...", __real__ result,
0.4548202223691477654L, CHOOSE(5e-17L, 6e-17, 9e-8));
check_eps ("imag(ccosh(0.7 + i 1.2)) == 0.70702...", __imag__ result,
- 0.7070296600921537682L, CHOOSE(7e-17L, 0, 0));
+ 0.7070296600921537682L, CHOOSE(7e-17L, 2e-16, 0));
result = FUNC(ccosh) (BUILD_COMPLEX (-2, -3));
check_eps ("real(ccosh(-2 - i 3)) == -3.72454...", __real__ result,
check_eps ("real(cacos(0.7 + i 1.2)) == 1.13518...", __real__ result,
1.1351827477151551089L, CHOOSE(2e-17L, 3e-16, 2e-7));
check_eps ("imag(cacos(0.7 + i 1.2)) == -1.09276...", __imag__ result,
- -1.0927647857577371459L, CHOOSE(4e-17L, 0, 3e-7));
+ -1.0927647857577371459L, CHOOSE(4e-17L, 3e-16, 3e-7));
result = FUNC(cacos) (BUILD_COMPLEX (-2, -3));
check_eps ("real(cacos(-2 - i 3)) == 2.14144...", __real__ result,
result = FUNC(cacosh) (BUILD_COMPLEX (0.7, 1.2));
check_eps ("real(cacosh(0.7 + i 1.2)) == 1.09276...", __real__ result,
- 1.0927647857577371459L, CHOOSE(4e-17L, 3e-16, 0));
+ 1.0927647857577371459L, CHOOSE(4e-17L, 3e-16, 2e-7));
check_eps ("imag(cacosh(0.7 + i 1.2)) == 1.13518...", __imag__ result,
1.1351827477151551089L, CHOOSE(2e-17L, 0, 0));
check_eps ("real(casin(0.7 + i 1.2)) == 0.43561...", __real__ result,
0.4356135790797415103L, CHOOSE(2e-17L, 2e-16, 2e-7));
check_eps ("imag(casin(0.7 + i 1.2)) == 1.09276...", __imag__ result,
- 1.0927647857577371459L, CHOOSE(4e-17L, 0, 3e-7));
+ 1.0927647857577371459L, CHOOSE(4e-17L, 3e-16, 3e-7));
result = FUNC(casin) (BUILD_COMPLEX (-2, -3));
check_eps ("real(casin(-2 - i 3)) == -0.57065...", __real__ result,
result = FUNC(catan) (BUILD_COMPLEX (0.7, 1.2));
check_eps ("real(catan(0.7 + i 1.2)) == 1.07857...", __real__ result,
- 1.0785743834118921877L, CHOOSE (3e-17, 0, 0));
+ 1.0785743834118921877L, CHOOSE (3e-17, 0, 5e-7));
check_eps ("imag(catan(0.7 + i 1.2)) == 0.57705...", __imag__ result,
- 0.5770573776534306764L, CHOOSE(3e-17L, 0, 6e-8));
+ 0.5770573776534306764L, CHOOSE(3e-17L, 2e-16, 6e-8));
result = FUNC(catan) (BUILD_COMPLEX (-2, -3));
- check ("real(catan(-2 - i 3)) == -1.40992...", __real__ result,
- -1.4099210495965755225L);
+ check_eps ("real(catan(-2 - i 3)) == -1.40992...", __real__ result,
+ -1.4099210495965755225L, CHOOSE(0, 0, 4e-7));
check_eps ("imag(catan(-2 - i 3)) == -0.22907...", __imag__ result,
-0.2290726829685387662L, CHOOSE(1.1e-19L, 3e-17, 2e-8));
}
check_eps ("real(catanh(0.7 + i 1.2)) == 0.26007...", __real__ result,
0.2600749516525135959L, CHOOSE (2e-18, 6e-17, 0));
check_eps ("imag(catanh(0.7 + i 1.2)) == 0.97024...", __imag__ result,
- 0.9702403077950989849L, CHOOSE (3e-17, 0, 0));
+ 0.9702403077950989849L, CHOOSE (3e-17, 2e-16, 4e-7));
result = FUNC(catanh) (BUILD_COMPLEX (-2, -3));
check_eps ("real(catanh(-2 - i 3)) == -0.14694...", __real__ result,
- -0.1469466662255297520L, CHOOSE (9e-20L, 6e-17, 2e-8));
+ -0.1469466662255297520L, CHOOSE (9e-20L, 2e-16, 2e-8));
check_eps ("imag(catanh(-2 - i 3)) == -1.33897...", __imag__ result,
- -1.3389725222944935611L, CHOOSE (7e-19L, 0, 0));
+ -1.3389725222944935611L, CHOOSE (7e-19L, 0, 5e-7));
}
check_eps ("real(ctan(0.7 + i 1.2)) == 0.17207...", __real__ result,
0.1720734197630349001L, CHOOSE(1e-17L, 3e-17, 2e-8));
check_eps ("imag(ctan(0.7 + i 1.2)) == 0.95448...", __imag__ result,
- 0.9544807059989405538L, CHOOSE(2e-17L, 2e-16, 0));
+ 0.9544807059989405538L, CHOOSE(2e-17L, 2e-16, 6e-8));
result = FUNC(ctan) (BUILD_COMPLEX (-2, -3));
check_eps ("real(ctan(-2 - i 3)) == -0.00376...", __real__ result,
- 0.0037640256415042482L, CHOOSE(1e-19L, 0, 0));
+ 0.0037640256415042482L, CHOOSE(1e-19L, 5e-19, 0));
check_eps ("imag(ctan(-2 - i 3)) == -1.00323...", __imag__ result,
-1.0032386273536098014L, CHOOSE(2e-19L, 0, 2e-7));
}
result = FUNC(ctanh) (BUILD_COMPLEX (0.7, 1.2));
check_eps ("real(ctanh(0.7 + i 1.2)) == 1.34721...", __real__ result,
- 1.3472197399061191630L, CHOOSE(4e-17L, 3e-16, 2e-7));
+ 1.3472197399061191630L, CHOOSE(4e-17L, 5e-16, 2e-7));
check_eps ("imag(ctanh(0.7 + i 1.2)) == -0.47786...", __imag__ result,
- 0.4778641038326365540L, CHOOSE(9e-17L, 6e-17, 9e-8));
+ 0.4778641038326365540L, CHOOSE(9e-17L, 2e-16, 9e-8));
result = FUNC(ctanh) (BUILD_COMPLEX (-2, -3));
check_eps ("real(ctanh(-2 - i 3)) == -0.96538...", __real__ result,
- -0.9653858790221331242L, CHOOSE(2e-19L, 0, 0));
+ -0.9653858790221331242L, CHOOSE(2e-19L, 2e-16, 2e-7));
check_eps ("imag(ctanh(-2 - i 3)) == 0.00988...", __imag__ result,
- 0.0098843750383224937L, CHOOSE(7e-20L, 0, 1e-9));
+ 0.0098843750383224937L, CHOOSE(7e-20L, 2e-16, 1e-9));
}
check_eps ("real(clog(-2 - i 3)) == 1.28247...", __real__ result,
1.2824746787307683680L, CHOOSE(3e-19L, 0, 0));
check_eps ("imag(clog(-2 - i 3)) == -2.15879...", __imag__ result,
- -2.1587989303424641704L, CHOOSE(2e-18L, 0, 0));
+ -2.1587989303424641704L, CHOOSE(2e-18L, 5e-16, 8e-7));
}
check_eps ("real(clog10(-2 - i 3)) == 0.55697...", __real__ result,
0.5569716761534183846L, CHOOSE(6e-20L, 0, 0));
check_eps ("imag(clog10(-2 - i 3)) == -0.93755...", __imag__ result,
- -0.9375544629863747085L, CHOOSE (7e-19L, 2e-16, 0));
+ -0.9375544629863747085L, CHOOSE (7e-19L, 2e-16, 3e-7));
}
/* Check for usual case. */
if (isless (x, himark) && isgreater (x, lomark))
{
- static const double TWO43 = 8796093022208.0;
- static const double TWO52 = 4503599627370496.0;
+ static const double THREEp42 = 13194139533312.0;
+ static const double THREEp51 = 6755399441055744.0;
/* 1/ln(2). */
static const double M_1_LN2 = 1.442695040888963387;
/* ln(2), part 1 */
fesetround (FE_TONEAREST);
/* Calculate n. */
- if (x >= 0)
- {
- n = x * M_1_LN2 + TWO52;
- n -= TWO52;
- }
- else
- {
- n = x * M_1_LN2 - TWO52;
- n += TWO52;
- }
+ n = x * M_1_LN2 + THREEp51;
+ n -= THREEp51;
x = x - n*M_LN2_0;
- if (x >= 0)
- {
- /* Calculate t/512. */
- t = x + TWO43;
- t -= TWO43;
- x -= t;
-
- /* Compute tval = t. */
- tval = (int) (t * 512.0);
-
- x -= __exp_deltatable[tval];
- }
- else
- {
- /* As above, but x is negative. */
- t = x - TWO43;
- t += TWO43;
- x -= t;
- tval = (int) (t * 512.0);
+ /* Calculate t/512. */
+ t = x + THREEp42;
+ t -= THREEp42;
+ x -= t;
- x += __exp_deltatable[-tval];
- }
+ /* Compute tval = t. */
+ tval = (int) (t * 512.0);
+
+ if (t >= 0)
+ x -= __exp_deltatable[tval];
+ else
+ x += __exp_deltatable[-tval];
/* Now, the variable x contains x + n*ln(2)_1. */
dely = n*M_LN2_1;
/* Check for usual case. */
if (isless (x, himark) && isgreater (x, lomark))
{
- static const float TWO43 = 8796093022208.0;
- static const float TWO23 = 8388608.0;
+ static const float THREEp42 = 13194139533312.0;
+ static const float THREEp22 = 12582912.0;
/* 1/ln(2). */
#undef M_1_LN2
static const float M_1_LN2 = 1.44269502163f;
fesetround (FE_TONEAREST);
/* Calculate n. */
- if (x >= 0)
- {
- n = x * M_1_LN2 + TWO23;
- n -= TWO23;
- }
- else
- {
- n = x * M_1_LN2 - TWO23;
- n += TWO23;
- }
+ n = x * M_1_LN2 + THREEp22;
+ n -= THREEp22;
dx = x - n*M_LN2;
- if (dx >= 0)
- {
- /* Calculate t/512. */
- t = dx + TWO43;
- t -= TWO43;
- dx -= t;
-
- /* Compute tval = t. */
- tval = (int) (t * 512.0);
-
- delta = - __exp_deltatable[tval];
- }
- else
- {
- /* As above, but x is negative. */
- t = dx - TWO43;
- t += TWO43;
- dx -= t;
- tval = (int) (t * 512.0);
+ /* Calculate t/512. */
+ t = dx + THREEp42;
+ t -= THREEp42;
+ dx -= t;
- delta = __exp_deltatable[-tval];
- }
+ /* Compute tval = t. */
+ tval = (int) (t * 512.0);
+
+ if (t >= 0)
+ delta = - __exp_deltatable[tval];
+ else
+ delta = __exp_deltatable[-tval];
/* Compute ex2 = 2^n e^(t/512+delta[t]). */
ex2_u.d = __exp_atable[tval+177];
/* Check for usual case. */
if (isless (x, himark) && isgreater (x, lomark))
{
- static const double TWO43 = 8796093022208.0;
+ static const double THREEp42 = 13194139533312.0;
int tval, unsafe;
double rx, x22, result;
union ieee754_double ex2_u, scale_u;
x = ex + t/512 + x1.
First, calculate rx = ex + t/512. */
- if (x >= 0)
- {
- rx = x + TWO43;
- rx -= TWO43;
- }
- else
- {
- rx = x - TWO43;
- rx += TWO43;
- }
+ rx = x + THREEp42;
+ rx -= THREEp42;
x -= rx; /* Compute x=x1. */
/* Compute tval = (ex*512 + t)+256.
Now, t = (tval mod 512)-256 and ex=tval/512 [that's mod, NOT %; and
/* Check for usual case. */
if (isless (x, himark) && isgreater (x, lomark))
{
- static const float TWO15 = 32768.0;
+ static const float THREEp14 = 49152.0;
int tval, unsafe;
float rx, x22, result;
union ieee754_float ex2_u, scale_u;
x = ex + t/512 + x1.
First, calculate rx = ex + t/256. */
- if (x >= 0)
- {
- rx = x + TWO15;
- rx -= TWO15;
- }
- else
- {
- rx = x - TWO15;
- rx += TWO15;
- }
+ rx = x + THREEp14;
+ rx -= THREEp14;
x -= rx; /* Compute x=x1. */
/* Compute tval = (ex*256 + t)+128.
Now, t = (tval mod 256)-128 and ex=tval/256 [that's mod, NOT %; and
/* Low-level functions for atomic operations. PowerPC version.
- Copyright (C) 1997 Free Software Foundation, Inc.
+ Copyright (C) 1997, 1998 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
#include <inttypes.h>
-static inline int
+#if BROKEN_PPC_ASM_CR0
+# define __ATOMICITY_INLINE /* nothing */
+#else
+# define __ATOMICITY_INLINE inline
+#endif
+
+static __ATOMICITY_INLINE int
__attribute__ ((unused))
exchange_and_add (volatile uint32_t *mem, int val)
{
return result;
}
-static inline void
+static __ATOMICITY_INLINE void
__attribute__ ((unused))
atomic_add (volatile uint32_t *mem, int val)
{
" : "=&r"(tmp) : "r" (mem), "r"(val) : "cr0");
}
-static inline int
+static __ATOMICITY_INLINE int
__attribute__ ((unused))
compare_and_swap (volatile long int *p, long int oldval, long int newval)
{
return result;
}
-static inline long int
+static __ATOMICITY_INLINE long int
__attribute__ ((unused))
always_swap (volatile long int *p, long int newval)
{
return result;
}
-static inline int
+static __ATOMICITY_INLINE int
__attribute__ ((unused))
test_and_set (volatile long int *p, long int oldval, long int newval)
{
--- /dev/null
+/* Copyright (C) 1998 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ 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., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <elf/ldsodefs.h>
+
+extern void __libc_init_first (int argc, char **argv, char **envp);
+
+extern int _dl_starting_up;
+weak_extern (_dl_starting_up)
+extern int __libc_multiple_libcs;
+
+struct startup_info
+{
+ void *sda_base;
+ int (*main) (int, char **, char **, void *);
+ int (*init) (int, char **, char **, void *);
+ void (*fini) (void);
+};
+
+int
+__libc_start_main (int argc, char **argv, char **envp,
+ void *auxvec, void (*rtld_fini) (void),
+ struct startup_info *stinfo,
+ char **stack_on_entry)
+{
+#ifndef PIC
+ /* The next variable is only here to work around a bug in gcc <= 2.7.2.2.
+ If the address would be taken inside the expression the optimizer
+ would try to be too smart and throws it away. Grrr. */
+ int *dummy_addr = &_dl_starting_up;
+
+ __libc_multiple_libcs = dummy_addr && !_dl_starting_up;
+#endif
+
+ /* the PPC SVR4 ABI says that the top thing on the stack will
+ be a NULL pointer, so if not we assume that we're being called
+ as a statically-linked program by Linux... */
+ if (*stack_on_entry != NULL)
+ {
+ /* ...in which case, we have argc as the top thing on the
+ stack, followed by argv (NULL-terminated), envp (likewise),
+ and the auxilary vector. */
+ argc = *(int *) stack_on_entry;
+ argv = stack_on_entry + 1;
+ envp = argv + argc + 1;
+ auxvec = envp;
+ while (*(char **) auxvec != NULL)
+ ++auxvec;
+ ++auxvec;
+ rtld_fini = NULL;
+ }
+
+ /* Register the destructor of the dynamic linker if there is any. */
+ if (rtld_fini != NULL)
+ atexit (rtld_fini);
+
+ /* Set the global _environ variable correctly. */
+ __environ = envp;
+
+ /* Call the initializer of the libc. */
+#ifdef PIC
+ if (_dl_debug_impcalls)
+ _dl_debug_message (1, "\ninitialize libc\n\n", NULL);
+#endif
+ __libc_init_first (argc, argv, envp);
+
+ /* Call the initializer of the program. */
+#ifdef PIC
+ if (_dl_debug_impcalls)
+ _dl_debug_message (1, "\ninitialize program: ", argv[0], "\n\n", NULL);
+#endif
+ stinfo->init (argc, argv, __environ, auxvec);
+
+ /* Register the destructor of the program. */
+ atexit (stinfo->fini);
+
+#ifdef PIC
+ if (_dl_debug_impcalls)
+ _dl_debug_message (1, "\ntransferring control: ", argv[0], "\n\n", NULL);
+#endif
+
+ exit (stinfo->main (argc, argv, __environ, auxvec));
+}
--- /dev/null
+/* Startup code for programs linked with GNU libc.
+ Copyright (C) 1998 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ 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., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <sysdep.h>
+
+ /* These are the various addresses we require. */
+ .section ".rodata"
+ .align 2
+L(start_addresses):
+ .long _SDA_BASE_
+ .long JUMPTARGET(main)
+ .long JUMPTARGET(_init)
+ .long JUMPTARGET(_fini)
+ ASM_SIZE_DIRECTIVE(L(start_addresses))
+
+ .section ".text"
+ENTRY(_start)
+ /* Save the stack pointer, in case we're statically linked under Linux. */
+ mr %r9,%r1
+ /* Set up an initial stack frame, and clear the LR. */
+ clrrwi %r1,%r1,4
+ li %r0,0
+ stwu %r1,-16(%r1)
+ mtlr %r0
+ stw %r0,0(%r1)
+ /* Set r13 to point at the 'small data area', and put the address of
+ start_addresses in r8... */
+ lis %r8,L(start_addresses)@ha
+ lwzu %r13,L(start_addresses)@l(%r8)
+ /* and continue in libc-start, in glibc. */
+ b JUMPTARGET(__libc_start_main)
+END(_start)
+
+/* Define a symbol for the first piece of initialized data. */
+ .section ".data"
+__data_start:
+weak_alias (__data_start, data_start)
kernel_stat.h
kernel_termios.h
init-first.h
-syscall.h
projects / external / glibc.git / commitdiff