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authorUlrich Drepper <drepper@redhat.com>1998-06-27 09:52:12 +0000
committerUlrich Drepper <drepper@redhat.com>1998-06-27 09:52:12 +0000
commit69bf5f75475e708abde760b2b401c2bfa65eec17 (patch)
tree2f0175634ce1e2b39c3437005de0bb7e61d3a06a /sysdeps/alpha
parentdb24ce47acb0727934bc8a0bedccf1be24791d13 (diff)
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Update.
1998-06-27 7:07 Richard Henderson <rth@cygnus.com> * math/atest-exp.c (exp_mpn, main): Cast to mp_limb_t appropriately. * math/atest-exp2.c (exp_mpn, main): Likewise. * math/atest-sincos.c (main): Likewise. * resolv/inet_addr.c (inet_aton): Check for 32-bit overflow. Move base handling away from strtoul. Always reset errno. * sysdeps/alpha/Makefile (elf): Kill -mno-fp-regs. * sysdeps/alpha/dl-machine.h (elf_machine_runtime_setup): Only set _dl_profile_map if _dl_name_match_p. (RTLD_START): Fix .prologue. Set __libc_stack_end. * sysdeps/alpha/elf/start.S: Pass sp as arg 7. Kill __data_start. * sysdeps/alpha/fpu/fraiseexcpt.c (feraiseexcept): Mark tmp as early-clobber. * sysdeps/libm-ieee754/e_exp10.c: Include "math_private.h". * sysdeps/libm-ieee754/e_exp10f.c: Likewise. * sysdeps/libm-ieee754/e_exp10l.c: Likewise.
Diffstat (limited to 'sysdeps/alpha')
-rw-r--r--sysdeps/alpha/Makefile7
-rw-r--r--sysdeps/alpha/dl-machine.h22
-rw-r--r--sysdeps/alpha/elf/start.S24
-rw-r--r--sysdeps/alpha/fpu/fraiseexcpt.c10
4 files changed, 29 insertions, 34 deletions
diff --git a/sysdeps/alpha/Makefile b/sysdeps/alpha/Makefile
index 6cf4a173a6..250a31779c 100644
--- a/sysdeps/alpha/Makefile
+++ b/sysdeps/alpha/Makefile
@@ -31,12 +31,7 @@ endif
ifeq ($(subdir),elf)
# The ld.so startup code cannot use literals until it self-relocates.
- ifeq ($(elf),yes)
- CFLAGS-rtld.c = -mbuild-constants
- endif
-# The rest of ld.so shouldn't use FP regs for block moves so
-# that the lazy link trampoline doesn't have to save them.
-sysdep-CFLAGS += -mno-fp-regs
+CFLAGS-rtld.c = -mbuild-constants
endif
divrem := divl divq reml remq
diff --git a/sysdeps/alpha/dl-machine.h b/sysdeps/alpha/dl-machine.h
index 455fd7b695..8f639a94b9 100644
--- a/sysdeps/alpha/dl-machine.h
+++ b/sysdeps/alpha/dl-machine.h
@@ -106,8 +106,13 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
else
{
*(Elf64_Addr *)(plt + 16) = (Elf64_Addr) &_dl_runtime_profile;
- /* Say that we really want profiling and the timers are started. */
- _dl_profile_map = l;
+
+ if (_dl_name_match_p (_dl_profile, l))
+ {
+ /* This is the object we are looking for. Say that we really
+ want profiling and the timers are started. */
+ _dl_profile_map = l;
+ }
}
/* Identify this shared object */
@@ -131,7 +136,7 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
" #tramp_name ":
lda $sp, -168($sp)
.frame $sp, 168, $26
- /* Preserve all registers that C normally doesn't. */
+ /* Preserve all integer registers that C normally doesn't. */
stq $26, 0($sp)
stq $0, 8($sp)
stq $1, 16($sp)
@@ -157,7 +162,7 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
/* Set up our $gp */
br $gp, .+4
ldgp $gp, 0($gp)
- .prologue 1
+ .prologue 0
/* Set up the arguments for fixup: */
/* $16 = link_map out of plt0 */
/* $17 = offset of reloc entry = ($28 - $27 - 20) /12 * 24 */
@@ -216,11 +221,13 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
#define RTLD_START asm ("\
.text
+ .set at
.globl _start
.ent _start
_start:
br $gp, 0f
0: ldgp $gp, 0($gp)
+ .prologue 0
/* Pass pointer to argument block to _dl_start. */
mov $sp, $16
bsr $26, "ASM_ALPHA_NG_SYMBOL_PREFIX"_dl_start..ng
@@ -229,8 +236,12 @@ _start:
.globl _dl_start_user
.ent _dl_start_user
_dl_start_user:
+ .frame $30,0,$31,0
+ .prologue 0
/* Save the user entry point address in s0. */
mov $0, $9
+ /* Store the highest stack address. */
+ stq $30, __libc_stack_end
/* See if we were run as a command with the executable file
name as an extra leading argument. If so, adjust the stack
pointer to skip _dl_skip_args words. */
@@ -253,15 +264,14 @@ _dl_start_user:
ldgp $gp, 0($26)
br 1b
2: /* Clear the startup flag. */
- .set at
stl $31, _dl_starting_up
- .set noat
/* Pass our finalizer function to the user in $0. */
lda $0, _dl_fini
/* Jump to the user's entry point. */
mov $9, $27
jmp ($9)
.end _dl_start_user
+ .set noat
.previous");
/* Nonzero iff TYPE describes relocation of a PLT entry, so
diff --git a/sysdeps/alpha/elf/start.S b/sysdeps/alpha/elf/start.S
index 1330d1fda2..ecb8174152 100644
--- a/sysdeps/alpha/elf/start.S
+++ b/sysdeps/alpha/elf/start.S
@@ -29,13 +29,14 @@ _start:
mov zero, fp
br gp, 1f
1: ldgp gp, 0(gp)
+ subq sp, 16, sp
.prologue 1
/* Load address of the user's main function. */
lda a0, main
- ldl a1, 0(sp) /* get argc */
- lda a2, 8(sp) /* get argv */
+ ldl a1, 16(sp) /* get argc */
+ lda a2, 24(sp) /* get argv */
/* Load address of our own entry points to .fini and .init. */
lda a3, _init
@@ -44,10 +45,12 @@ _start:
/* Store address of the shared library termination function. */
mov v0, a5
+ /* Provide the highest stack address to the user code. */
+ stq sp, 0(sp)
+
/* Call the user's main function, and exit with its value.
- But let the libc call main. */
+ But let the libc call main. */
jsr ra, __libc_start_main
- ldgp gp, 0(ra)
/* Die very horribly if exit returns. Call_pal hlt is callable from
kernel mode only; this will result in an illegal instruction trap. */
@@ -56,16 +59,3 @@ _start:
/* For ECOFF backwards compatibility. */
weak_alias(_start, __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)
diff --git a/sysdeps/alpha/fpu/fraiseexcpt.c b/sysdeps/alpha/fpu/fraiseexcpt.c
index c2a96e3f87..9b61ddb843 100644
--- a/sysdeps/alpha/fpu/fraiseexcpt.c
+++ b/sysdeps/alpha/fpu/fraiseexcpt.c
@@ -39,28 +39,28 @@ feraiseexcept (int excepts)
{
/* One example of a invalid operation is 0 * Infinity. */
__asm__ __volatile__("mult/sui $f31,%1,%0; trapb"
- : "=f"(tmp) : "f"(HUGE_VAL));
+ : "=&f"(tmp) : "f"(HUGE_VAL));
}
/* Next: division by zero. */
if (FE_DIVBYZERO & excepts)
{
__asm__ __volatile__("cmpteq $f31,$f31,%1; divt/sui %1,$f31,%0; trapb"
- : "=f"(tmp), "=f"(dummy));
+ : "=&f"(tmp), "=f"(dummy));
}
/* Next: overflow. */
if (FE_OVERFLOW & excepts)
{
__asm__ __volatile__("mult/sui %1,%1,%0; trapb"
- : "=f"(tmp) : "f"(DBL_MAX));
+ : "=&f"(tmp) : "f"(DBL_MAX));
}
/* Next: underflow. */
if (FE_UNDERFLOW & excepts)
{
__asm__ __volatile__("divt/sui %1,%2,%0; trapb"
- : "=f"(tmp) : "f"(DBL_MIN),
+ : "=&f"(tmp) : "f"(DBL_MIN),
"f"((double) (1UL << 60)));
}
@@ -68,6 +68,6 @@ feraiseexcept (int excepts)
if (FE_INEXACT & excepts)
{
__asm__ __volatile__("divt/sui %1,%2,%0; trapb"
- : "=f"(tmp) : "f"(1.0), "f"(M_PI));
+ : "=&f"(tmp) : "f"(1.0), "f"(M_PI));
}
}