poky/meta/recipes-core/systemd/systemd/0002-don-t-use-glibc-specific-qsort_r.patch

From d74a4de6daea5a511c2b5636bbb552c15b3a4ad9 Mon Sep 17 00:00:00 2001
From: Emil Renner Berthing <systemd@esmil.dk>
Date: Thu, 18 Sep 2014 15:24:56 +0200
Subject: [PATCH] don't use glibc-specific qsort_r

Upstream-Status: Inappropriate [musl specific]

Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
 src/basic/format-table.c | 27 ++++++++++++++++-----------
 src/basic/util.h         |  7 -------
 src/hwdb/hwdb.c          | 18 +++++++++++-------
 src/udev/udevadm-hwdb.c  | 16 ++++++++++------
 4 files changed, 37 insertions(+), 31 deletions(-)

diff --git a/src/basic/format-table.c b/src/basic/format-table.c
index 94e796d1ca..9b3f35c29a 100644
--- a/src/basic/format-table.c
+++ b/src/basic/format-table.c
@@ -745,29 +745,29 @@ static int cell_data_compare(TableData *a, size_t index_a, TableData *b, size_t
         return 0;
 }
 
-static int table_data_compare(const void *x, const void *y, void *userdata) {
+static Table *user_table;
+static int table_data_compare(const void *x, const void *y) {
         const size_t *a = x, *b = y;
-        Table *t = userdata;
         size_t i;
         int r;
 
-        assert(t);
-        assert(t->sort_map);
+        assert(user_table);
+        assert(user_table->sort_map);
 
         /* Make sure the header stays at the beginning */
-        if (*a < t->n_columns && *b < t->n_columns)
+        if (*a < user_table->n_columns && *b < user_table->n_columns)
                 return 0;
-        if (*a < t->n_columns)
+        if (*a < user_table->n_columns)
                 return -1;
-        if (*b < t->n_columns)
+        if (*b < user_table->n_columns)
                 return 1;
 
         /* Order other lines by the sorting map */
-        for (i = 0; i < t->n_sort_map; i++) {
+        for (i = 0; i < user_table->n_sort_map; i++) {
                 TableData *d, *dd;
 
-                d = t->data[*a + t->sort_map[i]];
-                dd = t->data[*b + t->sort_map[i]];
+                d = user_table->data[*a + user_table->sort_map[i]];
+                dd = user_table->data[*b + user_table->sort_map[i]];
 
                 r = cell_data_compare(d, *a, dd, *b);
                 if (r != 0)
@@ -960,7 +960,12 @@ int table_print(Table *t, FILE *f) {
                 for (i = 0; i < n_rows; i++)
                         sorted[i] = i * t->n_columns;
 
-                qsort_r_safe(sorted, n_rows, sizeof(size_t), table_data_compare, t);
+                if (n_rows <= 1)
+                        return 0;
+                assert(sorted);
+                user_table = t;
+                qsort(sorted, n_rows, sizeof(size_t), table_data_compare);
+                user_table = NULL;
         }
 
         if (t->display_map)
diff --git a/src/basic/util.h b/src/basic/util.h
index 9699d228f9..40eaf518cb 100644
--- a/src/basic/util.h
+++ b/src/basic/util.h
@@ -105,13 +105,6 @@ static inline void qsort_safe(void *base, size_t nmemb, size_t size, comparison_
                 qsort_safe((p), (n), sizeof((p)[0]), (__compar_fn_t) _func_); \
         })
 
-static inline void qsort_r_safe(void *base, size_t nmemb, size_t size, int (*compar)(const void*, const void*, void*), void *userdata) {
-        if (nmemb <= 1)
-                return;
-
-        assert(base);
-        qsort_r(base, nmemb, size, compar, userdata);
-}
 
 /**
  * Normal memcpy requires src to be nonnull. We do nothing if n is 0.
diff --git a/src/hwdb/hwdb.c b/src/hwdb/hwdb.c
index 317cad8a67..701d59a1eb 100644
--- a/src/hwdb/hwdb.c
+++ b/src/hwdb/hwdb.c
@@ -135,13 +135,12 @@ static void trie_free(struct trie *trie) {
 
 DEFINE_TRIVIAL_CLEANUP_FUNC(struct trie*, trie_free);
 
-static int trie_values_cmp(const void *v1, const void *v2, void *arg) {
+static struct trie *trie_node_add_value_trie;
+static int trie_values_cmp(const void *v1, const void *v2) {
         const struct trie_value_entry *val1 = v1;
         const struct trie_value_entry *val2 = v2;
-        struct trie *trie = arg;
-
-        return strcmp(trie->strings->buf + val1->key_off,
-                      trie->strings->buf + val2->key_off);
+        return strcmp(trie_node_add_value_trie->strings->buf + val1->key_off,
+                      trie_node_add_value_trie->strings->buf + val2->key_off);
 }
 
 static int trie_node_add_value(struct trie *trie, struct trie_node *node,
@@ -166,7 +165,10 @@ static int trie_node_add_value(struct trie *trie, struct trie_node *node,
                         .value_off = v,
                 };
 
-                val = xbsearch_r(&search, node->values, node->values_count, sizeof(struct trie_value_entry), trie_values_cmp, trie);
+                trie_node_add_value_trie = trie;
+                val = bsearch(&search, node->values, node->values_count, sizeof(struct trie_value_entry), trie_values_cmp);
+                trie_node_add_value_trie = NULL;
+
                 if (val) {
                         /* At this point we have 2 identical properties on the same match-string.
                          * Since we process files in order, we just replace the previous value.
@@ -191,7 +193,9 @@ static int trie_node_add_value(struct trie *trie, struct trie_node *node,
         node->values[node->values_count].file_priority = file_priority;
         node->values[node->values_count].line_number = line_number;
         node->values_count++;
-        qsort_r(node->values, node->values_count, sizeof(struct trie_value_entry), trie_values_cmp, trie);
+        trie_node_add_value_trie = trie;
+        qsort(node->values, node->values_count, sizeof(struct trie_value_entry), trie_values_cmp);
+        trie_node_add_value_trie = NULL;
         return 0;
 }
 
diff --git a/src/udev/udevadm-hwdb.c b/src/udev/udevadm-hwdb.c
index 02408a4285..491d367d12 100644
--- a/src/udev/udevadm-hwdb.c
+++ b/src/udev/udevadm-hwdb.c
@@ -114,13 +114,13 @@ static void trie_node_cleanup(struct trie_node *node) {
         free(node);
 }
 
-static int trie_values_cmp(const void *v1, const void *v2, void *arg) {
+static struct trie *trie_node_add_value_trie;
+static int trie_values_cmp(const void *v1, const void *v2) {
         const struct trie_value_entry *val1 = v1;
         const struct trie_value_entry *val2 = v2;
-        struct trie *trie = arg;
 
-        return strcmp(trie->strings->buf + val1->key_off,
-                      trie->strings->buf + val2->key_off);
+        return strcmp(trie_node_add_value_trie->strings->buf + val1->key_off,
+                      trie_node_add_value_trie->strings->buf + val2->key_off);
 }
 
 static int trie_node_add_value(struct trie *trie, struct trie_node *node,
@@ -141,7 +141,9 @@ static int trie_node_add_value(struct trie *trie, struct trie_node *node,
                         .value_off = v,
                 };
 
-                val = xbsearch_r(&search, node->values, node->values_count, sizeof(struct trie_value_entry), trie_values_cmp, trie);
+                trie_node_add_value_trie = trie;
+                val = bsearch(&search, node->values, node->values_count, sizeof(struct trie_value_entry), trie_values_cmp);
+                trie_node_add_value_trie = NULL;
                 if (val) {
                         /* replace existing earlier key with new value */
                         val->value_off = v;
@@ -158,7 +160,9 @@ static int trie_node_add_value(struct trie *trie, struct trie_node *node,
         node->values[node->values_count].key_off = k;
         node->values[node->values_count].value_off = v;
         node->values_count++;
-        qsort_r(node->values, node->values_count, sizeof(struct trie_value_entry), trie_values_cmp, trie);
+        trie_node_add_value_trie = trie;
+        qsort(node->values, node->values_count, sizeof(struct trie_value_entry), trie_values_cmp);
+        trie_node_add_value_trie = NULL;
         return 0;
 }
 
-- 
2.18.0