preserve Solaris binary hardware capabilities

auto/cc/sunc

@@ -45,21 +45,6 @@ fi
 case "$NGX_MACHINE" in
 
     i86pc)
-        ngx_feature="PAUSE hardware capability bug"
-        ngx_feature_name=
-        ngx_feature_run=bug
-        ngx_feature_incs=
-        ngx_feature_path=
-        ngx_feature_libs=
-        ngx_feature_test='__asm ("pause")'
-
-        . auto/feature
-
-        if [ $ngx_found = yes ]; then
-            # disable [ PAUSE ] hwcap for Sun Studio 11
-            CORE_LINK="$CORE_LINK -Msrc/os/unix/ngx_sunpro_x86.map"
-        fi
-
         NGX_AUX=" src/os/unix/ngx_sunpro_x86.il"
     ;;
 

src/os/unix/ngx_sunpro_x86.il

@@ -5,7 +5,7 @@
 / ngx_atomic_uint_t ngx_atomic_cmp_set(ngx_atomic_t *lock,
 /     ngx_atomic_uint_t old, ngx_atomic_uint_t set);
 /
-/ the arguments are passed on the stack (%esp), 4(%esp), 8(%esp)
+/ the arguments are passed on stack (%esp), 4(%esp), 8(%esp)
 
         .inline ngx_atomic_cmp_set,0
         movl      (%esp), %ecx
@@ -21,7 +21,7 @@
 / ngx_atomic_int_t ngx_atomic_fetch_add(ngx_atomic_t *value,
 /     ngx_atomic_int_t add);
 /
-/ the arguments are passed on the stack (%esp), 4(%esp)
+/ the arguments are passed on stack (%esp), 4(%esp)
 
         .inline ngx_atomic_fetch_add,0
         movl      (%esp), %ecx
@@ -32,7 +32,12 @@
 
 
 / ngx_cpu_pause()
+/
+/ the "rep; nop" is used instead of "pause" to avoid the "[ PAUSE ]" hardware
+/ capability added by linker because Solaris/i386 does not know about it:
+/
+/ ld.so.1: nginx: fatal: hardware capability unsupported: 0x2000  [ PAUSE ]
 
        .inline ngx_cpu_pause,0
-       pause
+       rep; nop
        .end

src/os/unix/ngx_sunpro_x86.map

@@ -1,2 +0,0 @@
-# disable { PAUSE ] hwcap for Sun Studio 11
-hwcap_1 = OVERRIDE;