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gmalloc.c
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gmalloc.c
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// RUN: %clang_cc1 -analyze -analyzer-checker=core,unix.Malloc -analyzer-store=region -verify %s
#include "Inputs/system-header-simulator.h"
typedef void* gpointer;
typedef const void* gconstpointer;
typedef unsigned long gsize;
typedef unsigned int guint;
gpointer g_malloc(gsize n_bytes);
gpointer g_malloc0(gsize n_bytes);
gpointer g_realloc(gpointer mem, gsize n_bytes);
gpointer g_try_malloc(gsize n_bytes);
gpointer g_try_malloc0(gsize n_bytes);
gpointer g_try_realloc(gpointer mem, gsize n_bytes);
gpointer g_malloc_n(gsize n_blocks, gsize n_block_bytes);
gpointer g_malloc0_n(gsize n_blocks, gsize n_block_bytes);
gpointer g_realloc_n(gpointer mem, gsize n_blocks, gsize n_block_bytes);
gpointer g_try_malloc_n(gsize n_blocks, gsize n_block_bytes);
gpointer g_try_malloc0_n(gsize n_blocks, gsize n_block_bytes);
gpointer g_try_realloc_n(gpointer mem, gsize n_blocks, gsize n_block_bytes);
void g_free(gpointer mem);
gpointer g_memdup(gconstpointer mem, guint byte_size);
static const gsize n_bytes = 1024;
void f1() {
gpointer g1 = g_malloc(n_bytes);
gpointer g2 = g_malloc0(n_bytes);
g1 = g_realloc(g1, n_bytes * 2);
gpointer g3 = g_try_malloc(n_bytes);
gpointer g4 = g_try_malloc0(n_bytes);
g3 = g_try_realloc(g3, n_bytes * 2);
gpointer g5 = g_malloc_n(n_bytes, sizeof(char));
gpointer g6 = g_malloc0_n(n_bytes, sizeof(char));
g5 = g_realloc_n(g5, n_bytes * 2, sizeof(char));
gpointer g7 = g_try_malloc_n(n_bytes, sizeof(char));
gpointer g8 = g_try_malloc0_n(n_bytes, sizeof(char));
g7 = g_try_realloc_n(g7, n_bytes * 2, sizeof(char));
g_free(g1);
g_free(g2);
g_free(g2); // expected-warning{{Attempt to free released memory}}
}
void f2() {
gpointer g1 = g_malloc(n_bytes);
gpointer g2 = g_malloc0(n_bytes);
g1 = g_realloc(g1, n_bytes * 2);
gpointer g3 = g_try_malloc(n_bytes);
gpointer g4 = g_try_malloc0(n_bytes);
g3 = g_try_realloc(g3, n_bytes * 2);
gpointer g5 = g_malloc_n(n_bytes, sizeof(char));
gpointer g6 = g_malloc0_n(n_bytes, sizeof(char));
g5 = g_realloc_n(g5, n_bytes * 2, sizeof(char));
gpointer g7 = g_try_malloc_n(n_bytes, sizeof(char));
gpointer g8 = g_try_malloc0_n(n_bytes, sizeof(char));
g7 = g_try_realloc_n(g7, n_bytes * 2, sizeof(char));
g_free(g1);
g_free(g2);
g_free(g3);
g3 = g_memdup(g3, n_bytes); // expected-warning{{Use of memory after it is freed}}
}
void f3() {
gpointer g1 = g_malloc(n_bytes);
gpointer g2 = g_malloc0(n_bytes);
g1 = g_realloc(g1, n_bytes * 2);
gpointer g3 = g_try_malloc(n_bytes);
gpointer g4 = g_try_malloc0(n_bytes);
g3 = g_try_realloc(g3, n_bytes * 2); // expected-warning{{Potential leak of memory pointed to by 'g4'}}
gpointer g5 = g_malloc_n(n_bytes, sizeof(char));
gpointer g6 = g_malloc0_n(n_bytes, sizeof(char));
g5 = g_realloc_n(g5, n_bytes * 2, sizeof(char)); // expected-warning{{Potential leak of memory pointed to by 'g6'}}
gpointer g7 = g_try_malloc_n(n_bytes, sizeof(char)); // expected-warning{{Potential leak of memory pointed to by 'g5'}}
gpointer g8 = g_try_malloc0_n(n_bytes, sizeof(char));
g7 = g_try_realloc_n(g7, n_bytes * 2, sizeof(char)); // expected-warning{{Potential leak of memory pointed to by 'g8'}}
g_free(g1); // expected-warning{{Potential leak of memory pointed to by 'g7'}}
g_free(g2);
g_free(g3);
}
void f4() {
gpointer g1 = g_malloc(n_bytes);
gpointer g2 = g_malloc0(n_bytes);
g1 = g_realloc(g1, n_bytes * 2);
gpointer g3 = g_try_malloc(n_bytes);
gpointer g4 = g_try_malloc0(n_bytes);
g3 = g_try_realloc(g3, n_bytes * 2);
gpointer g5 = g_malloc_n(n_bytes, sizeof(char));
gpointer g6 = g_malloc0_n(n_bytes, sizeof(char));
g5 = g_realloc_n(g5, n_bytes * 2, sizeof(char)); // expected-warning{{Potential leak of memory pointed to by 'g6'}}
gpointer g7 = g_try_malloc_n(n_bytes, sizeof(char)); // expected-warning{{Potential leak of memory pointed to by 'g5'}}
gpointer g8 = g_try_malloc0_n(n_bytes, sizeof(char));
g7 = g_try_realloc_n(g7, n_bytes * 2, sizeof(char)); // expected-warning{{Potential leak of memory pointed to by 'g8'}}
g_free(g1); // expected-warning{{Potential leak of memory pointed to by 'g7'}}
g_free(g2);
g_free(g3);
g_free(g4);
}
void f5() {
gpointer g1 = g_malloc(n_bytes);
gpointer g2 = g_malloc0(n_bytes);
g1 = g_realloc(g1, n_bytes * 2);
gpointer g3 = g_try_malloc(n_bytes);
gpointer g4 = g_try_malloc0(n_bytes);
g3 = g_try_realloc(g3, n_bytes * 2);
gpointer g5 = g_malloc_n(n_bytes, sizeof(char));
gpointer g6 = g_malloc0_n(n_bytes, sizeof(char));
g5 = g_realloc_n(g5, n_bytes * 2, sizeof(char)); // expected-warning{{Potential leak of memory pointed to by 'g6'}}
gpointer g7 = g_try_malloc_n(n_bytes, sizeof(char));
gpointer g8 = g_try_malloc0_n(n_bytes, sizeof(char));
g7 = g_try_realloc_n(g7, n_bytes * 2, sizeof(char)); // expected-warning{{Potential leak of memory pointed to by 'g8'}}
g_free(g1); // expected-warning{{Potential leak of memory pointed to by 'g7'}}
g_free(g2);
g_free(g3);
g_free(g4);
g_free(g5);
}
void f6() {
gpointer g1 = g_malloc(n_bytes);
gpointer g2 = g_malloc0(n_bytes);
g1 = g_realloc(g1, n_bytes * 2);
gpointer g3 = g_try_malloc(n_bytes);
gpointer g4 = g_try_malloc0(n_bytes);
g3 = g_try_realloc(g3, n_bytes * 2);
gpointer g5 = g_malloc_n(n_bytes, sizeof(char));
gpointer g6 = g_malloc0_n(n_bytes, sizeof(char));
g5 = g_realloc_n(g5, n_bytes * 2, sizeof(char));
gpointer g7 = g_try_malloc_n(n_bytes, sizeof(char));
gpointer g8 = g_try_malloc0_n(n_bytes, sizeof(char));
g7 = g_try_realloc_n(g7, n_bytes * 2, sizeof(char)); // expected-warning{{Potential leak of memory pointed to by 'g8'}}
g_free(g1); // expected-warning{{Potential leak of memory pointed to by 'g7'}}
g_free(g2);
g_free(g3);
g_free(g4);
g_free(g5);
g_free(g6);
}
void f7() {
gpointer g1 = g_malloc(n_bytes);
gpointer g2 = g_malloc0(n_bytes);
g1 = g_realloc(g1, n_bytes * 2);
gpointer g3 = g_try_malloc(n_bytes);
gpointer g4 = g_try_malloc0(n_bytes);
g3 = g_try_realloc(g3, n_bytes * 2);
gpointer g5 = g_malloc_n(n_bytes, sizeof(char));
gpointer g6 = g_malloc0_n(n_bytes, sizeof(char));
g5 = g_realloc_n(g5, n_bytes * 2, sizeof(char));
gpointer g7 = g_try_malloc_n(n_bytes, sizeof(char));
gpointer g8 = g_try_malloc0_n(n_bytes, sizeof(char));
g7 = g_try_realloc_n(g7, n_bytes * 2, sizeof(char)); // expected-warning{{Potential leak of memory pointed to by 'g8'}}
g_free(g1);
g_free(g2);
g_free(g3);
g_free(g4);
g_free(g5);
g_free(g6);
g_free(g7);
}