[Mesa-dev] [PATCH 2/7] [RFC] glsl: Fix reading of uninitialized memory

[Juha-Pekka Heikkila]

Switch to use memory allocations which zero memory for places
where needed.

Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila at gmail.com>
---
 src/compiler/glsl/ast_to_hir.cpp          | 2 +-
 src/compiler/glsl/glcpp/glcpp-parse.y     | 4 ++--
 src/compiler/glsl/link_uniform_blocks.cpp | 2 +-
 src/compiler/glsl_types.cpp               | 2 +-
 4 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/compiler/glsl/ast_to_hir.cpp b/src/compiler/glsl/ast_to_hir.cpp
index b7192b2..4fb2809 100644
--- a/src/compiler/glsl/ast_to_hir.cpp
+++ b/src/compiler/glsl/ast_to_hir.cpp
@@ -6518,7 +6518,7 @@ ast_process_struct_or_iface_block_members(exec_list *instructions,
     * the types to HIR.  This ensures that structure definitions embedded in
     * other structure definitions or in interface blocks are processed.
     */
-   glsl_struct_field *const fields = ralloc_array(state, glsl_struct_field,
+   glsl_struct_field *const fields = rzalloc_array(state, glsl_struct_field,
                                                   decl_count);
 
    bool first_member = true;
diff --git a/src/compiler/glsl/glcpp/glcpp-parse.y b/src/compiler/glsl/glcpp/glcpp-parse.y
index 2cfa6a6..b3565b5 100644
--- a/src/compiler/glsl/glcpp/glcpp-parse.y
+++ b/src/compiler/glsl/glcpp/glcpp-parse.y
@@ -1315,7 +1315,7 @@ glcpp_parser_create(const struct gl_extensions *extensions, gl_api api)
 {
    glcpp_parser_t *parser;
 
-   parser = ralloc (NULL, glcpp_parser_t);
+   parser = rzalloc (NULL, glcpp_parser_t);
 
    glcpp_lex_init_extra (parser, &parser->scanner);
    parser->defines = hash_table_ctor(32, hash_table_string_hash,
@@ -1855,7 +1855,7 @@ _parser_active_list_push(glcpp_parser_t *parser, const char *identifier,
 {
    active_list_t *node;
 
-   node = ralloc(parser->active, active_list_t);
+   node = rzalloc(parser->active, active_list_t);
    node->identifier = ralloc_strdup(node, identifier);
    node->marker = marker;
    node->next = parser->active;
diff --git a/src/compiler/glsl/link_uniform_blocks.cpp b/src/compiler/glsl/link_uniform_blocks.cpp
index b816dab..0a0c886 100644
--- a/src/compiler/glsl/link_uniform_blocks.cpp
+++ b/src/compiler/glsl/link_uniform_blocks.cpp
@@ -315,7 +315,7 @@ create_buffer_blocks(void *mem_ctx, struct gl_context *ctx,
    /* Allocate storage to hold all of the information related to uniform
     * blocks that can be queried through the API.
     */
-   struct gl_uniform_block *blocks = ralloc_array(mem_ctx, gl_uniform_block, num_blocks);
+   struct gl_uniform_block *blocks = rzalloc_array(mem_ctx, gl_uniform_block, num_blocks);
    gl_uniform_buffer_variable *variables =
       ralloc_array(blocks, gl_uniform_buffer_variable, num_variables);
 
diff --git a/src/compiler/glsl_types.cpp b/src/compiler/glsl_types.cpp
index 11f1e85..613c449 100644
--- a/src/compiler/glsl_types.cpp
+++ b/src/compiler/glsl_types.cpp
@@ -157,7 +157,7 @@ glsl_type::glsl_type(const glsl_struct_field *fields, unsigned num_fields,
    init_ralloc_type_ctx();
    assert(name != NULL);
    this->name = ralloc_strdup(this->mem_ctx, name);
-   this->fields.structure = ralloc_array(this->mem_ctx,
+   this->fields.structure = rzalloc_array(this->mem_ctx,
                                          glsl_struct_field, length);
    for (i = 0; i < length; i++) {
       this->fields.structure[i].type = fields[i].type;
-- 
1.9.1