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-rw-r--r--libc/sysdeps/sparc/Makefile4
-rw-r--r--libc/sysdeps/sparc/backtrace.c159
-rw-r--r--libc/sysdeps/sparc/fpu/libm-test-ulps162
-rw-r--r--libc/sysdeps/sparc/sparc32/backtrace.h7
-rw-r--r--libc/sysdeps/sparc/sparc32/memchr.S3
-rw-r--r--libc/sysdeps/sparc/sparc32/sparcv9/Makefile2
-rw-r--r--libc/sysdeps/sparc/sparc32/sparcv9/backtrace.h7
-rw-r--r--libc/sysdeps/sparc/sparc32/sparcv9/bits/atomic.h14
-rw-r--r--libc/sysdeps/sparc/sparc64/Makefile1
-rw-r--r--libc/sysdeps/sparc/sparc64/backtrace.c57
-rw-r--r--libc/sysdeps/sparc/sparc64/backtrace.h7
-rw-r--r--libc/sysdeps/sparc/sparc64/bits/atomic.h28
-rw-r--r--libc/sysdeps/sparc/sparc64/memchr.S3
13 files changed, 376 insertions, 78 deletions
diff --git a/libc/sysdeps/sparc/Makefile b/libc/sysdeps/sparc/Makefile
index 3f0c09640..31aaeaed8 100644
--- a/libc/sysdeps/sparc/Makefile
+++ b/libc/sysdeps/sparc/Makefile
@@ -3,6 +3,10 @@ long-double-fcts = yes
pie-ccflag = -fPIE
+ifeq ($(subdir),debug)
+CFLAGS-backtrace.c += -funwind-tables
+endif
+
ifeq ($(subdir),gmon)
sysdep_routines += sparc-mcount
endif
diff --git a/libc/sysdeps/sparc/backtrace.c b/libc/sysdeps/sparc/backtrace.c
new file mode 100644
index 000000000..48f3cf6c1
--- /dev/null
+++ b/libc/sysdeps/sparc/backtrace.c
@@ -0,0 +1,159 @@
+/* Return backtrace of current program state.
+ Copyright (C) 2013 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by David S. Miller <davem@davemloft.net>
+
+ 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, see <http://www.gnu.org/licenses/>. */
+
+#include <execinfo.h>
+#include <stddef.h>
+#include <sysdep.h>
+#include <sys/trap.h>
+#include <dlfcn.h>
+#include <unwind.h>
+#include <backtrace.h>
+
+struct layout
+{
+ unsigned long locals[8];
+ unsigned long ins[6];
+ unsigned long next;
+ void *return_address;
+};
+
+struct trace_arg
+{
+ void **array;
+ _Unwind_Word cfa;
+ int cnt;
+ int size;
+};
+
+#ifdef SHARED
+static _Unwind_Reason_Code (*unwind_backtrace) (_Unwind_Trace_Fn, void *);
+static _Unwind_Ptr (*unwind_getip) (struct _Unwind_Context *);
+static _Unwind_Word (*unwind_getcfa) (struct _Unwind_Context *);
+static void *libgcc_handle;
+
+/* Dummy version in case libgcc_s does not contain the real code. */
+static _Unwind_Word
+dummy_getcfa (struct _Unwind_Context *ctx __attribute__ ((unused)))
+{
+ return 0;
+}
+
+static void
+init (void)
+{
+ libgcc_handle = __libc_dlopen ("libgcc_s.so.1");
+
+ if (libgcc_handle == NULL)
+ return;
+
+ unwind_backtrace = __libc_dlsym (libgcc_handle, "_Unwind_Backtrace");
+ unwind_getip = __libc_dlsym (libgcc_handle, "_Unwind_GetIP");
+ if (unwind_getip == NULL)
+ unwind_backtrace = NULL;
+ unwind_getcfa = (__libc_dlsym (libgcc_handle, "_Unwind_GetCFA")
+ ?: dummy_getcfa);
+}
+#else
+# define unwind_backtrace _Unwind_Backtrace
+# define unwind_getip _Unwind_GetIP
+# define unwind_getcfa _Unwind_GetCFA
+#endif
+
+static _Unwind_Reason_Code
+backtrace_helper (struct _Unwind_Context *ctx, void *a)
+{
+ struct trace_arg *arg = a;
+ _Unwind_Ptr ip;
+
+ /* We are first called with address in the __backtrace function.
+ Skip it. */
+ if (arg->cnt != -1)
+ {
+ ip = unwind_getip (ctx);
+ arg->array[arg->cnt] = (void *) ip;
+
+ /* Check whether we make any progress. */
+ _Unwind_Word cfa = unwind_getcfa (ctx);
+
+ if (arg->cnt > 0 && arg->array[arg->cnt - 1] == arg->array[arg->cnt]
+ && cfa == arg->cfa)
+ return _URC_END_OF_STACK;
+ arg->cfa = cfa;
+ }
+ if (++arg->cnt == arg->size)
+ return _URC_END_OF_STACK;
+ return _URC_NO_REASON;
+}
+
+int
+__backtrace (void **array, int size)
+{
+ struct trace_arg arg = { .array = array, .cfa = 0, .size = size, .cnt = -1 };
+ bool use_unwinder;
+ int count;
+
+ if (!size)
+ return 0;
+
+ use_unwinder = true;
+#ifdef SHARED
+ __libc_once_define (static, once);
+
+ __libc_once (once, init);
+ if (unwind_backtrace == NULL)
+ use_unwinder = false;
+#endif
+
+ if (use_unwinder == false)
+ {
+ struct layout *current;
+ unsigned long fp, i7;
+
+ asm volatile ("mov %%fp, %0" : "=r"(fp));
+ asm volatile ("mov %%i7, %0" : "=r"(i7));
+ current = (struct layout *) (fp + BACKTRACE_STACK_BIAS);
+
+ array[0] = (void *) i7;
+
+ if (size == 1)
+ return 1;
+
+ backtrace_flush_register_windows();
+ for (count = 1; count < size; count++)
+ {
+ array[count] = current->return_address;
+ if (!current->next)
+ break;
+ current = (struct layout *) (current->next + BACKTRACE_STACK_BIAS);
+ }
+ }
+ else
+ {
+ unwind_backtrace (backtrace_helper, &arg);
+
+ /* _Unwind_Backtrace seems to put NULL address above
+ _start. Fix it up here. */
+ if (arg.cnt > 1 && arg.array[arg.cnt - 1] == NULL)
+ --arg.cnt;
+ count = arg.cnt != -1 ? arg.cnt : 0;
+ }
+ return count;
+}
+weak_alias (__backtrace, backtrace)
+libc_hidden_def (__backtrace)
diff --git a/libc/sysdeps/sparc/fpu/libm-test-ulps b/libc/sysdeps/sparc/fpu/libm-test-ulps
index f282a160a..6eee78843 100644
--- a/libc/sysdeps/sparc/fpu/libm-test-ulps
+++ b/libc/sysdeps/sparc/fpu/libm-test-ulps
@@ -204,6 +204,38 @@ ldouble: 1
Test "Real part of: cacos (-0.5 - 0 i) == 2.094395102393195492308428922186335256131 + +0 i":
ildouble: 1
ldouble: 1
+Test "Imaginary part of: cacos (-0x1.fp-1025 + 1.5 i) == 1.570796326794896619231321691639751442099 - 1.194763217287109304111930828519090523536 i":
+double: 1
+idouble: 1
+ildouble: 1
+ldouble: 1
+Test "Imaginary part of: cacos (-0x1.fp-1025 - 1.5 i) == 1.570796326794896619231321691639751442099 + 1.194763217287109304111930828519090523536 i":
+double: 1
+idouble: 1
+ildouble: 1
+ldouble: 1
+Test "Real part of: cacos (-0x1.fp-129 + 1.5 i) == 1.570796326794896619231321691639751442100 - 1.194763217287109304111930828519090523536 i":
+float: 1
+ifloat: 1
+Test "Imaginary part of: cacos (-0x1.fp-129 + 1.5 i) == 1.570796326794896619231321691639751442100 - 1.194763217287109304111930828519090523536 i":
+double: 1
+idouble: 1
+ildouble: 1
+ldouble: 1
+Test "Real part of: cacos (-0x1.fp-129 - 1.5 i) == 1.570796326794896619231321691639751442100 + 1.194763217287109304111930828519090523536 i":
+float: 1
+ifloat: 1
+Test "Imaginary part of: cacos (-0x1.fp-129 - 1.5 i) == 1.570796326794896619231321691639751442100 + 1.194763217287109304111930828519090523536 i":
+double: 1
+idouble: 1
+ildouble: 1
+ldouble: 1
+Test "Imaginary part of: cacos (-0x1.fp-16385 + 1.5 i) == 1.570796326794896619231321691639751442099 - 1.194763217287109304111930828519090523536 i":
+ildouble: 1
+ldouble: 1
+Test "Imaginary part of: cacos (-0x1.fp-16385 - 1.5 i) == 1.570796326794896619231321691639751442099 + 1.194763217287109304111930828519090523536 i":
+ildouble: 1
+ldouble: 1
Test "Imaginary part of: cacos (-0x1p500 + 1.0 i) == 3.141592653589793238462643383279502884197 - 3.472667374605326000180332928505464606058e2 i":
ildouble: 1
ldouble: 1
@@ -262,6 +294,32 @@ ifloat: 1
Test "Imaginary part of: cacos (0.75 + 1.25 i) == 1.11752014915610270578240049553777969 - 1.13239363160530819522266333696834467 i":
ildouble: 1
ldouble: 1
+Test "Imaginary part of: cacos (0x1.fp-1025 + 1.5 i) == 1.570796326794896619231321691639751442099 - 1.194763217287109304111930828519090523536 i":
+double: 1
+idouble: 1
+ildouble: 1
+ldouble: 1
+Test "Imaginary part of: cacos (0x1.fp-1025 - 1.5 i) == 1.570796326794896619231321691639751442099 + 1.194763217287109304111930828519090523536 i":
+double: 1
+idouble: 1
+ildouble: 1
+ldouble: 1
+Test "Imaginary part of: cacos (0x1.fp-129 + 1.5 i) == 1.570796326794896619231321691639751442097 - 1.194763217287109304111930828519090523536 i":
+double: 1
+idouble: 1
+ildouble: 1
+ldouble: 1
+Test "Imaginary part of: cacos (0x1.fp-129 - 1.5 i) == 1.570796326794896619231321691639751442097 + 1.194763217287109304111930828519090523536 i":
+double: 1
+idouble: 1
+ildouble: 1
+ldouble: 1
+Test "Imaginary part of: cacos (0x1.fp-16385 + 1.5 i) == 1.570796326794896619231321691639751442099 - 1.194763217287109304111930828519090523536 i":
+ildouble: 1
+ldouble: 1
+Test "Imaginary part of: cacos (0x1.fp-16385 - 1.5 i) == 1.570796326794896619231321691639751442099 + 1.194763217287109304111930828519090523536 i":
+ildouble: 1
+ldouble: 1
Test "Imaginary part of: cacos (0x1.fp1023 + 0x1.fp1023 i) == 7.853981633974483096156608458198757210493e-1 - 7.107906849659093345062145442726115449315e2 i":
double: 1
idouble: 1
@@ -481,6 +539,32 @@ double: 1
idouble: 1
ildouble: 1
ldouble: 1
+Test "Imaginary part of: casin (-0x1.fp-1025 + 1.5 i) == -2.989196569048182929051881765490354365918e-309 + 1.194763217287109304111930828519090523536 i":
+double: 1
+idouble: 1
+ildouble: 1
+ldouble: 1
+Test "Imaginary part of: casin (-0x1.fp-1025 - 1.5 i) == -2.989196569048182929051881765490354365918e-309 - 1.194763217287109304111930828519090523536 i":
+double: 1
+idouble: 1
+ildouble: 1
+ldouble: 1
+Test "Imaginary part of: casin (-0x1.fp-129 + 1.5 i) == -1.579176199917649005841160751101628985741e-39 + 1.194763217287109304111930828519090523536 i":
+double: 1
+idouble: 1
+ildouble: 1
+ldouble: 1
+Test "Imaginary part of: casin (-0x1.fp-129 - 1.5 i) == -1.579176199917649005841160751101628985741e-39 - 1.194763217287109304111930828519090523536 i":
+double: 1
+idouble: 1
+ildouble: 1
+ldouble: 1
+Test "Imaginary part of: casin (-0x1.fp-16385 + 1.5 i) == -4.516698239814521372306784062043266700598e-4933 + 1.194763217287109304111930828519090523536 i":
+ildouble: 1
+ldouble: 1
+Test "Imaginary part of: casin (-0x1.fp-16385 - 1.5 i) == -4.516698239814521372306784062043266700598e-4933 - 1.194763217287109304111930828519090523536 i":
+ildouble: 1
+ldouble: 1
Test "Imaginary part of: casin (-0x1p500 + 1.0 i) == -1.570796326794896619231321691639751442099 + 3.472667374605326000180332928505464606058e2 i":
ildouble: 1
ldouble: 1
@@ -520,6 +604,32 @@ ifloat: 1
Test "Imaginary part of: casin (0.75 + 1.25 i) == 0.453276177638793913448921196101971749 + 1.13239363160530819522266333696834467 i":
ildouble: 1
ldouble: 1
+Test "Imaginary part of: casin (0x1.fp-1025 + 1.5 i) == 2.989196569048182929051881765490354365918e-309 + 1.194763217287109304111930828519090523536 i":
+double: 1
+idouble: 1
+ildouble: 1
+ldouble: 1
+Test "Imaginary part of: casin (0x1.fp-1025 - 1.5 i) == 2.989196569048182929051881765490354365918e-309 - 1.194763217287109304111930828519090523536 i":
+double: 1
+idouble: 1
+ildouble: 1
+ldouble: 1
+Test "Imaginary part of: casin (0x1.fp-129 + 1.5 i) == 1.579176199917649005841160751101628985741e-39 + 1.194763217287109304111930828519090523536 i":
+double: 1
+idouble: 1
+ildouble: 1
+ldouble: 1
+Test "Imaginary part of: casin (0x1.fp-129 - 1.5 i) == 1.579176199917649005841160751101628985741e-39 - 1.194763217287109304111930828519090523536 i":
+double: 1
+idouble: 1
+ildouble: 1
+ldouble: 1
+Test "Imaginary part of: casin (0x1.fp-16385 + 1.5 i) == 4.516698239814521372306784062043266700598e-4933 + 1.194763217287109304111930828519090523536 i":
+ildouble: 1
+ldouble: 1
+Test "Imaginary part of: casin (0x1.fp-16385 - 1.5 i) == 4.516698239814521372306784062043266700598e-4933 - 1.194763217287109304111930828519090523536 i":
+ildouble: 1
+ldouble: 1
Test "Imaginary part of: casin (0x1.fp1023 + 0x1.fp1023 i) == 7.853981633974483096156608458198757210493e-1 + 7.107906849659093345062145442726115449315e2 i":
double: 1
idouble: 1
@@ -635,6 +745,19 @@ idouble: 2
ifloat: 1
ildouble: 2
ldouble: 2
+Test "Real part of: casinh (-1.5 + 0x1.fp-1025 i) == -1.194763217287109304111930828519090523536 + 2.989196569048182929051881765490354365918e-309 i":
+double: 1
+idouble: 1
+ildouble: 1
+ldouble: 1
+Test "Real part of: casinh (-1.5 + 0x1.fp-129 i) == -1.194763217287109304111930828519090523536 + 1.579176199917649005841160751101628985741e-39 i":
+double: 1
+idouble: 1
+ildouble: 1
+ldouble: 1
+Test "Real part of: casinh (-1.5 + 0x1.fp-16385 i) == -1.194763217287109304111930828519090523536 + 4.516698239814521372306784062043266700598e-4933 i":
+ildouble: 1
+ldouble: 1
Test "Real part of: casinh (-1.5 - 0 i) == -1.194763217287109304111930828519090523536 - 0 i":
double: 2
float: 1
@@ -642,6 +765,19 @@ idouble: 2
ifloat: 1
ildouble: 2
ldouble: 2
+Test "Real part of: casinh (-1.5 - 0x1.fp-1025 i) == -1.194763217287109304111930828519090523536 - 2.989196569048182929051881765490354365918e-309 i":
+double: 1
+idouble: 1
+ildouble: 1
+ldouble: 1
+Test "Real part of: casinh (-1.5 - 0x1.fp-129 i) == -1.194763217287109304111930828519090523536 - 1.579176199917649005841160751101628985741e-39 i":
+double: 1
+idouble: 1
+ildouble: 1
+ldouble: 1
+Test "Real part of: casinh (-1.5 - 0x1.fp-16385 i) == -1.194763217287109304111930828519090523536 - 4.516698239814521372306784062043266700598e-4933 i":
+ildouble: 1
+ldouble: 1
Test "Real part of: casinh (-2 - 3 i) == -1.9686379257930962917886650952454982 - 0.96465850440760279204541105949953237 i":
double: 5
float: 1
@@ -730,11 +866,37 @@ double: 1
idouble: 1
ildouble: 1
ldouble: 1
+Test "Real part of: casinh (1.5 + 0x1.fp-1025 i) == 1.194763217287109304111930828519090523536 + 2.989196569048182929051881765490354365918e-309 i":
+double: 1
+idouble: 1
+ildouble: 1
+ldouble: 1
+Test "Real part of: casinh (1.5 + 0x1.fp-129 i) == 1.194763217287109304111930828519090523536 + 1.579176199917649005841160751101628985741e-39 i":
+double: 1
+idouble: 1
+ildouble: 1
+ldouble: 1
+Test "Real part of: casinh (1.5 + 0x1.fp-16385 i) == 1.194763217287109304111930828519090523536 + 4.516698239814521372306784062043266700598e-4933 i":
+ildouble: 1
+ldouble: 1
Test "Real part of: casinh (1.5 - 0 i) == 1.194763217287109304111930828519090523536 - 0 i":
double: 1
idouble: 1
ildouble: 1
ldouble: 1
+Test "Real part of: casinh (1.5 - 0x1.fp-1025 i) == 1.194763217287109304111930828519090523536 - 2.989196569048182929051881765490354365918e-309 i":
+double: 1
+idouble: 1
+ildouble: 1
+ldouble: 1
+Test "Real part of: casinh (1.5 - 0x1.fp-129 i) == 1.194763217287109304111930828519090523536 - 1.579176199917649005841160751101628985741e-39 i":
+double: 1
+idouble: 1
+ildouble: 1
+ldouble: 1
+Test "Real part of: casinh (1.5 - 0x1.fp-16385 i) == 1.194763217287109304111930828519090523536 - 4.516698239814521372306784062043266700598e-4933 i":
+ildouble: 1
+ldouble: 1
# catan
Test "Imaginary part of: catan (-2 - 3 i) == -1.4099210495965755225306193844604208 - 0.22907268296853876629588180294200276 i":
diff --git a/libc/sysdeps/sparc/sparc32/backtrace.h b/libc/sysdeps/sparc/sparc32/backtrace.h
new file mode 100644
index 000000000..089f8b4d2
--- /dev/null
+++ b/libc/sysdeps/sparc/sparc32/backtrace.h
@@ -0,0 +1,7 @@
+/* Private macros for guiding the backtrace implementation, sparc32
+ version. */
+
+#define backtrace_flush_register_windows() \
+ asm volatile ("ta %0" : : "i" (ST_FLUSH_WINDOWS))
+
+#define BACKTRACE_STACK_BIAS 0
diff --git a/libc/sysdeps/sparc/sparc32/memchr.S b/libc/sysdeps/sparc/sparc32/memchr.S
index 295005dd8..7ea782538 100644
--- a/libc/sysdeps/sparc/sparc32/memchr.S
+++ b/libc/sysdeps/sparc/sparc32/memchr.S
@@ -139,7 +139,4 @@ ENTRY(__memchr)
END(__memchr)
weak_alias (__memchr, memchr)
-#if !__BOUNDED_POINTERS__
-weak_alias (__memchr, __ubp_memchr)
-#endif
libc_hidden_builtin_def (memchr)
diff --git a/libc/sysdeps/sparc/sparc32/sparcv9/Makefile b/libc/sysdeps/sparc/sparc32/sparcv9/Makefile
index 8a9330f7a..7d475b089 100644
--- a/libc/sysdeps/sparc/sparc32/sparcv9/Makefile
+++ b/libc/sysdeps/sparc/sparc32/sparcv9/Makefile
@@ -10,13 +10,11 @@ ASFLAGS-.o += -Wa,-Av9d
ASFLAGS-.os += -Wa,-Av9d
ASFLAGS-.op += -Wa,-Av9d
ASFLAGS-.og += -Wa,-Av9d
-ASFLAGS-.ob += -Wa,-Av9d
ASFLAGS-.oS += -Wa,-Av9d
else
ASFLAGS-.o += -Wa,-Av9a
ASFLAGS-.os += -Wa,-Av9a
ASFLAGS-.op += -Wa,-Av9a
ASFLAGS-.og += -Wa,-Av9a
-ASFLAGS-.ob += -Wa,-Av9a
ASFLAGS-.oS += -Wa,-Av9a
endif
diff --git a/libc/sysdeps/sparc/sparc32/sparcv9/backtrace.h b/libc/sysdeps/sparc/sparc32/sparcv9/backtrace.h
new file mode 100644
index 000000000..8d6c75671
--- /dev/null
+++ b/libc/sysdeps/sparc/sparc32/sparcv9/backtrace.h
@@ -0,0 +1,7 @@
+/* Private macros for guiding the backtrace implementation, sparc32 v9
+ version. */
+
+#define backtrace_flush_register_windows() \
+ asm volatile ("flushw")
+
+#define BACKTRACE_STACK_BIAS 0
diff --git a/libc/sysdeps/sparc/sparc32/sparcv9/bits/atomic.h b/libc/sysdeps/sparc/sparc32/sparcv9/bits/atomic.h
index b1a89584f..937d7a149 100644
--- a/libc/sysdeps/sparc/sparc32/sparcv9/bits/atomic.h
+++ b/libc/sysdeps/sparc/sparc32/sparcv9/bits/atomic.h
@@ -55,10 +55,16 @@ typedef uintmax_t uatomic_max_t;
({ \
__typeof (*(mem)) __acev_tmp; \
__typeof (mem) __acev_mem = (mem); \
- __asm __volatile ("cas [%4], %2, %0" \
- : "=r" (__acev_tmp), "=m" (*__acev_mem) \
- : "r" (oldval), "m" (*__acev_mem), "r" (__acev_mem), \
- "0" (newval) : "memory"); \
+ if (__builtin_constant_p (oldval) && (oldval) == 0) \
+ __asm __volatile ("cas [%3], %%g0, %0" \
+ : "=r" (__acev_tmp), "=m" (*__acev_mem) \
+ : "m" (*__acev_mem), "r" (__acev_mem), \
+ "0" (newval) : "memory"); \
+ else \
+ __asm __volatile ("cas [%4], %2, %0" \
+ : "=r" (__acev_tmp), "=m" (*__acev_mem) \
+ : "r" (oldval), "m" (*__acev_mem), "r" (__acev_mem), \
+ "0" (newval) : "memory"); \
__acev_tmp; })
/* This can be implemented if needed. */
diff --git a/libc/sysdeps/sparc/sparc64/Makefile b/libc/sysdeps/sparc/sparc64/Makefile
index 2b7b83035..fb161ea13 100644
--- a/libc/sysdeps/sparc/sparc64/Makefile
+++ b/libc/sysdeps/sparc/sparc64/Makefile
@@ -12,6 +12,5 @@ ASFLAGS-.o += -Wa,-Av9d
ASFLAGS-.os += -Wa,-Av9d
ASFLAGS-.op += -Wa,-Av9d
ASFLAGS-.og += -Wa,-Av9d
-ASFLAGS-.ob += -Wa,-Av9d
ASFLAGS-.oS += -Wa,-Av9d
endif
diff --git a/libc/sysdeps/sparc/sparc64/backtrace.c b/libc/sysdeps/sparc/sparc64/backtrace.c
deleted file mode 100644
index 230ca1fa2..000000000
--- a/libc/sysdeps/sparc/sparc64/backtrace.c
+++ /dev/null
@@ -1,57 +0,0 @@
-/* Return backtrace of current program state.
- Copyright (C) 2008-2013 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by David S. Miller <davem@davemloft.net>
-
- 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, see <http://www.gnu.org/licenses/>. */
-
-#include <execinfo.h>
-#include <stddef.h>
-#include <bp-checks.h>
-#include <sysdep.h>
-
-struct layout
-{
- unsigned long locals[8];
- unsigned long ins[6];
- unsigned long next;
- void *__unbounded return_address;
-};
-
-int
-__backtrace (void **array, int size)
-{
- struct layout *current;
- unsigned long fp;
- int count;
-
- asm volatile ("flushw");
- asm volatile ("mov %%fp, %0" : "=r"(fp));
- current = (struct layout *__unbounded) (fp + STACK_BIAS);
- current = BOUNDED_1 (current);
-
- for (count = 0; count < size; count++)
- {
- array[count] = current->return_address;
- if (!current->next)
- break;
- current = (struct layout *__unbounded) (current->next + STACK_BIAS);
- current = BOUNDED_1 (current);
- }
-
- return count;
-}
-weak_alias (__backtrace, backtrace)
-libc_hidden_def (__backtrace)
diff --git a/libc/sysdeps/sparc/sparc64/backtrace.h b/libc/sysdeps/sparc/sparc64/backtrace.h
new file mode 100644
index 000000000..b9c95c51c
--- /dev/null
+++ b/libc/sysdeps/sparc/sparc64/backtrace.h
@@ -0,0 +1,7 @@
+/* Private macros for guiding the backtrace implementation, sparc64
+ version. */
+
+#define backtrace_flush_register_windows() \
+ asm volatile ("flushw")
+
+#define BACKTRACE_STACK_BIAS STACK_BIAS
diff --git a/libc/sysdeps/sparc/sparc64/bits/atomic.h b/libc/sysdeps/sparc/sparc64/bits/atomic.h
index 0afbb4ba5..96611de42 100644
--- a/libc/sysdeps/sparc/sparc64/bits/atomic.h
+++ b/libc/sysdeps/sparc/sparc64/bits/atomic.h
@@ -55,20 +55,32 @@ typedef uintmax_t uatomic_max_t;
({ \
__typeof (*(mem)) __acev_tmp; \
__typeof (mem) __acev_mem = (mem); \
- __asm __volatile ("cas [%4], %2, %0" \
- : "=r" (__acev_tmp), "=m" (*__acev_mem) \
- : "r" (oldval), "m" (*__acev_mem), "r" (__acev_mem), \
- "0" (newval) : "memory"); \
+ if (__builtin_constant_p (oldval) && (oldval) == 0) \
+ __asm __volatile ("cas [%3], %%g0, %0" \
+ : "=r" (__acev_tmp), "=m" (*__acev_mem) \
+ : "m" (*__acev_mem), "r" (__acev_mem), \
+ "0" (newval) : "memory"); \
+ else \
+ __asm __volatile ("cas [%4], %2, %0" \
+ : "=r" (__acev_tmp), "=m" (*__acev_mem) \
+ : "r" (oldval), "m" (*__acev_mem), "r" (__acev_mem), \
+ "0" (newval) : "memory"); \
__acev_tmp; })
#define __arch_compare_and_exchange_val_64_acq(mem, newval, oldval) \
({ \
__typeof (*(mem)) __acev_tmp; \
__typeof (mem) __acev_mem = (mem); \
- __asm __volatile ("casx [%4], %2, %0" \
- : "=r" (__acev_tmp), "=m" (*__acev_mem) \
- : "r" ((long) (oldval)), "m" (*__acev_mem), \
- "r" (__acev_mem), "0" ((long) (newval)) : "memory"); \
+ if (__builtin_constant_p (oldval) && (oldval) == 0) \
+ __asm __volatile ("casx [%3], %%g0, %0" \
+ : "=r" (__acev_tmp), "=m" (*__acev_mem) \
+ : "m" (*__acev_mem), "r" (__acev_mem), \
+ "0" ((long) (newval)) : "memory"); \
+ else \
+ __asm __volatile ("casx [%4], %2, %0" \
+ : "=r" (__acev_tmp), "=m" (*__acev_mem) \
+ : "r" ((long) (oldval)), "m" (*__acev_mem), \
+ "r" (__acev_mem), "0" ((long) (newval)) : "memory"); \
__acev_tmp; })
#define atomic_exchange_acq(mem, newvalue) \
diff --git a/libc/sysdeps/sparc/sparc64/memchr.S b/libc/sysdeps/sparc/sparc64/memchr.S
index ee700b6e2..0cd2573a0 100644
--- a/libc/sysdeps/sparc/sparc64/memchr.S
+++ b/libc/sysdeps/sparc/sparc64/memchr.S
@@ -256,7 +256,4 @@ ENTRY(__memchr)
END(__memchr)
weak_alias (__memchr, memchr)
-#if !__BOUNDED_POINTERS__
-weak_alias (__memchr, __ubp_memchr)
-#endif
libc_hidden_builtin_def (memchr)
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