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[Xen-changelog] [xen master] tools/xenalyze: Fix build with clang



commit 28ab9f3d0e7cbb22f5ce77500af7873f6e2d3c59
Author:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
AuthorDate: Fri Feb 12 19:06:48 2016 +0000
Commit:     Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
CommitDate: Fri Feb 19 17:34:48 2016 +0000

    tools/xenalyze: Fix build with clang
    
    1) EXIT_REASON_EXCEPTION_NMI is 0, and Clang complains:
    
    xenalyze.c:513:33: error: initializer overrides prior initialization of 
this subobject [-Werror,-Winitializer-overrides]
        [EXIT_REASON_EXCEPTION_NMI]="EXCEPTION_NMI",
                                    ^~~~~~~~~~~~~~~
    xenalyze.c:512:11: note: previous initialization is here
        [0] = "NONE",
              ^~~~~~
    
    2) cr3_time_compare(), eip_compare(), ipi_send() and cr3_compare_start() are
       declared as nested functions, which is a GCCism not supported by Clang.
    
       As they don't actually make use of the interesting feature offered by
       nested functions (i.e. dynamic scoping), move them to just being normal
       functions.
    
    3) clear_interval_summary(), update_cpi() and clear_interval_cpi() are all
       unused.  The former isn't reference anywhere, so is deleted, while the 
other
       two are called from currently #if 0'd code.
    
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Acked-by: George Dunlap <george.dunlap@xxxxxxxxxx>
---
 tools/xentrace/xenalyze.c | 188 +++++++++++++++++++++++-----------------------
 1 file changed, 92 insertions(+), 96 deletions(-)

diff --git a/tools/xentrace/xenalyze.c b/tools/xentrace/xenalyze.c
index 6520790..1651302 100644
--- a/tools/xentrace/xenalyze.c
+++ b/tools/xentrace/xenalyze.c
@@ -509,7 +509,6 @@ struct {
 #define HVM_VMX_EXIT_REASON_MAX (EXIT_REASON_XSETBV+1)
 
 char * hvm_vmx_exit_reason_name[HVM_VMX_EXIT_REASON_MAX] = {
-    [0] = "NONE",
     [EXIT_REASON_EXCEPTION_NMI]="EXCEPTION_NMI",
     [EXIT_REASON_EXTERNAL_INTERRUPT]="EXTERNAL_INTERRUPT",
     [EXIT_REASON_TRIPLE_FAULT]="TRIPLE_FAULT",
@@ -2270,11 +2269,6 @@ static inline void update_summary(struct 
event_cycle_summary *s, long long c) {
     s->count++;
 }
 
-static inline void clear_interval_summary(struct event_cycle_summary *s) {
-    s->interval.count = 0;
-    s->interval.cycles = 0;
-}
-
 static inline void update_cycles(struct cycle_summary *s, long long c) {
 /* We don't know ahead of time how many samples there are, and working
  * with dynamic stuff is a pain, and unnecessary.  This algorithm will
@@ -2322,6 +2316,7 @@ static inline void clear_interval_cycles(struct 
interval_element *e) {
     e->instructions = 0;
 }
 
+#if 0
 static inline void update_cpi(struct weighted_cpi_summary *s,
                               unsigned long long i,
                               unsigned long long c) {
@@ -2367,6 +2362,7 @@ static inline void clear_interval_cpi(struct 
weighted_cpi_summary *s) {
     s->interval.count = 0;
     s->interval.instructions = 0;
 }
+#endif
 
 static inline void print_cpu_affinity(struct cycle_summary *s, char *p) {
     if(s->count) {
@@ -2647,6 +2643,23 @@ void interval_cr3_value_check(struct cr3_value_struct 
*cr3) {
     }
 }
 
+int cr3_time_compare(const void *_a, const void *_b) {
+    struct cr3_value_struct *a=*(typeof(&a))_a;
+    struct cr3_value_struct *b=*(typeof(&a))_b;
+
+    if(a->total_time.interval.cycles < b->total_time.interval.cycles)
+        return 1;
+    else if(b->total_time.interval.cycles == a->total_time.interval.cycles) {
+        if(a->total_time.interval.count < b->total_time.interval.count)
+            return 1;
+        else if(a->total_time.interval.count == b->total_time.interval.count)
+            return 0;
+        else
+            return -1;
+    } else
+        return -1;
+}
+
 void interval_cr3_schedule_ordered_output(void) {
     struct cr3_value_struct *p;
     int i;
@@ -2654,23 +2667,6 @@ void interval_cr3_schedule_ordered_output(void) {
     struct cr3_value_struct **qsort_array;
     int N=0;
 
-    int cr3_time_compare(const void *_a, const void *_b) {
-        struct cr3_value_struct *a=*(typeof(&a))_a;
-        struct cr3_value_struct *b=*(typeof(&a))_b;
-
-        if(a->total_time.interval.cycles < b->total_time.interval.cycles)
-            return 1;
-        else if(b->total_time.interval.cycles == 
a->total_time.interval.cycles) {
-            if(a->total_time.interval.count < b->total_time.interval.count)
-                return 1;
-            else if(a->total_time.interval.count == 
b->total_time.interval.count)
-                return 0;
-            else
-                return -1;
-        } else
-            return -1;
-    }
-
     for(p=P.cr3.head; p; p=p->gnext)
         N++;
 
@@ -2966,6 +2962,23 @@ void update_eip(struct eip_list_struct **head, unsigned 
long long eip,
     update_summary(&p->summary, cycles);
 }
 
+int eip_compare(const void *_a, const void *_b) {
+    struct eip_list_struct *a=*(typeof(&a))_a;
+    struct eip_list_struct *b=*(typeof(&a))_b;
+
+    if(a->summary.cycles < b->summary.cycles)
+        return 1;
+    else if(b->summary.cycles == a->summary.cycles) {
+        if(a->summary.count < b->summary.count)
+            return 1;
+        else if(a->summary.count == b->summary.count)
+            return 0;
+        else
+            return -1;
+    } else
+        return -1;
+}
+
 void dump_eip(struct eip_list_struct *head) {
     struct eip_list_struct *p;
     int i;
@@ -2974,23 +2987,6 @@ void dump_eip(struct eip_list_struct *head) {
     struct eip_list_struct **qsort_array;
     int N=0;
 
-    int eip_compare(const void *_a, const void *_b) {
-        struct eip_list_struct *a=*(typeof(&a))_a;
-        struct eip_list_struct *b=*(typeof(&a))_b;
-
-        if(a->summary.cycles < b->summary.cycles)
-            return 1;
-        else if(b->summary.cycles == a->summary.cycles) {
-            if(a->summary.count < b->summary.count)
-                return 1;
-            else if(a->summary.count == b->summary.count)
-                return 0;
-            else
-                return -1;
-        } else
-            return -1;
-    }
-
     for(p=head; p; p=p->next)
     {
         total += p->summary.count;
@@ -3557,6 +3553,50 @@ struct outstanding_ipi *find_vec(struct vlapic_struct 
*vla, int vec)
     return o;
 }
 
+void ipi_send(struct vcpu_data *ov, int vec)
+{
+    struct vlapic_struct *vla;
+    struct outstanding_ipi *o = NULL;
+
+    if(ov->runstate.state == RUNSTATE_LOST) {
+        if(opt.dump_all)
+            fprintf(warn, "%s: v%d in state RUNSTATE_LOST, not counting ipi\n",
+                    __func__, ov->vid);
+        return;
+    }
+
+    vla = &ov->vlapic;
+
+    o = find_vec(vla, vec);
+
+    if(!o)
+    {
+        fprintf(warn, "%s: Couldn't find an open slot!\n",
+                __func__);
+        return;
+    }
+
+    if(!o->first_tsc)
+        o->first_tsc = P.now;
+
+    if(opt.dump_all && o->count == 0 && o->injected)
+        printf(" [vla] Pre-injection\n");
+
+    o->count++;
+
+    if((opt.dump_all)
+#if 0
+       && (ov->runstate.state != RUNSTATE_RUNNING
+           || ov->hvm.vmexit_valid)
+#endif
+        )
+        printf(" [vla] d%dv%d vec %d state %s (outstanding ipis %d)\n",
+               ov->d->did, ov->vid,
+               o->vec,
+               runstate_name[ov->runstate.state],
+               o->count);
+}
+
 void hvm_vlapic_icr_handler(struct hvm_data *h)
 {
     struct mmio_info *m = &h->inflight.mmio;
@@ -3575,50 +3615,6 @@ void hvm_vlapic_icr_handler(struct hvm_data *h)
         };
     } icr = { .val = m->data };
 
-    void ipi_send(struct vcpu_data *ov, int vec)
-    {
-        struct vlapic_struct *vla;
-        struct outstanding_ipi *o = NULL;
-
-        if(ov->runstate.state == RUNSTATE_LOST) {
-            if(opt.dump_all)
-                fprintf(warn, "%s: v%d in state RUNSTATE_LOST, not counting 
ipi\n",
-                        __func__, ov->vid);
-            return;
-        }
-
-        vla = &ov->vlapic;
-
-        o = find_vec(vla, vec);
-
-        if(!o)
-        {
-            fprintf(warn, "%s: Couldn't find an open slot!\n",
-                    __func__);
-            return;
-        }
-
-        if(!o->first_tsc)
-            o->first_tsc = P.now;
-
-        if(opt.dump_all && o->count == 0 && o->injected)
-            printf(" [vla] Pre-injection\n");
-
-        o->count++;
-
-        if((opt.dump_all)
-#if 0
-           && (ov->runstate.state != RUNSTATE_RUNNING
-               || ov->hvm.vmexit_valid)
-#endif
-            )
-            printf(" [vla] d%dv%d vec %d state %s (outstanding ipis %d)\n",
-                   ov->d->did, ov->vid,
-                   o->vec,
-                   runstate_name[ov->runstate.state],
-                   o->count);
-    }
-
     if(m->is_write) {
         if(opt.dump_all) {
             printf("              [vla] d%dv%d icr vec %d %s\n",
@@ -4124,23 +4120,23 @@ void cr3_prealloc_unpin(struct vcpu_data *v, unsigned 
long long gmfn) {
                gmfn, cr3->prealloc_unpin.count);
 }
 
+int cr3_compare_start(const void *_a, const void *_b) {
+    struct cr3_value_struct *a=*(typeof(&a))_a;
+    struct cr3_value_struct *b=*(typeof(&a))_b;
+
+    if(a->first_time > b->first_time)
+        return 1;
+    else if(b->first_time == a->first_time)
+        return 0;
+    else
+        return -1;
+}
+
 void cr3_dump_list(struct cr3_value_struct *head){
     struct cr3_value_struct *p;
     struct cr3_value_struct **qsort_array;
     int i, N=0;
 
-    int cr3_compare_start(const void *_a, const void *_b) {
-        struct cr3_value_struct *a=*(typeof(&a))_a;
-        struct cr3_value_struct *b=*(typeof(&a))_b;
-
-        if(a->first_time > b->first_time)
-            return 1;
-        else if(b->first_time == a->first_time)
-            return 0;
-        else
-            return -1;
-    }
-
     if(!head)
         return;
 
--
generated by git-patchbot for /home/xen/git/xen.git#master

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