[pypy-commit] pypy vmprof: swap the order of codemap entries

[fijal]

Author: Maciej Fijalkowski <fij...@gmail.com>
Branch: vmprof
Changeset: r76715:5275e224f8c8
Date: 2015-04-05 09:16 +0200
http://bitbucket.org/pypy/pypy/changeset/5275e224f8c8/

Log:    swap the order of codemap entries

diff --git a/pypy/module/_vmprof/src/get_custom_offset.c 
b/pypy/module/_vmprof/src/get_custom_offset.c
--- a/pypy/module/_vmprof/src/get_custom_offset.c
+++ b/pypy/module/_vmprof/src/get_custom_offset.c
@@ -29,6 +29,8 @@
     intptr_t id;
     long start_addr = 0;
     intptr_t addr = (intptr_t)ip;
+    int start, k;
+    void *tmp;
 
     codemap = pypy_find_codemap_at_addr(addr, &start_addr);
     if (codemap == NULL)
@@ -38,6 +40,7 @@
     // modify the last entry to point to start address and not the random one
     // in the middle
     result[n - 1] = (void*)start_addr;
+    start = n;
     while (n < max_depth) {
         id = pypy_yield_codemap_at_addr(codemap, addr, &current_pos);
         if (id == 0)
@@ -45,5 +48,12 @@
             break;
         result[n++] = (void *)id;
     }
+    k = 0;
+    while (k < (n - start) / 2) {
+        tmp = result[start + k];
+        result[start + k] = result[n - k - 1];
+        result[n - k - 1] = tmp;
+        k++;
+    }
     return n;
 }
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