termux-packages/packages/ltrace/sysdeps-linux-gnu-proc.c.patch
2016-05-18 19:38:13 -04:00

60 lines
2.1 KiB
Diff

diff --git a/sysdeps/linux-gnu/proc.c b/sysdeps/linux-gnu/proc.c
index 953fd86..bdb96cb 100644
--- a/sysdeps/linux-gnu/proc.c
+++ b/sysdeps/linux-gnu/proc.c
@@ -524,9 +524,53 @@ crawl_linkmap(struct process *proc, struct lt_r_debug_64 *dbg)
|| strcmp(lib_name, "linux-vdso.so.1") == 0
|| strcmp(lib_name, "linux-gate.so.1") == 0
|| strcmp(lib_name, "linux-vdso32.so.1") == 0
- || strcmp(lib_name, "linux-vdso64.so.1") == 0)
+ || strcmp(lib_name, "linux-vdso64.so.1") == 0
+ || strcmp(lib_name, "[vdso]") == 0
+ /* Android linker includes itself in list of libraries
+ * on GNU linker it appears as empty string */
+ || strcmp(lib_name, "/system/bin/linker") == 0
+ || strcmp(lib_name, "/system/bin/linker64") == 0)
continue;
+ /* On Android main executable is included in library list
+ * On GNU it appears as empty string */
+ if (rlm.l_prev == 0 && strstr(lib_name, ".so") == NULL) {
+ continue;
+ }
+
+ /* Android < 6 provides just library name without full path,
+ * will find full path ourselves */
+ if (lib_name[0] != '/') {
+ char local_path[1024];
+ /* Include path from LD_LIBRARY_PATH */
+ const char *path = getenv("LD_LIBRARY_PATH");
+ if (path) {
+ strlcpy(local_path, path, sizeof(local_path));
+ } else {
+ local_path[0] = '\0';
+ }
+ /* Include default path (hardcoded in /system/bin/linker) */
+ strlcat(
+ local_path,
+ select_32_64(proc, ":/vendor/lib:/system/lib", ":/vendor/lib64:/system/lib64"),
+ sizeof(local_path)
+ );
+
+ char *local_path_ptr = local_path;
+ const char *tested_path;
+ char full_lib_name[BUFSIZ];
+ while ((tested_path = strsep(&local_path_ptr, ":"))) {
+ if (tested_path[0] == '\0') {
+ continue;
+ }
+ snprintf(full_lib_name, sizeof(full_lib_name), "%s/%s", tested_path, lib_name);
+ if (access(full_lib_name, F_OK) == 0) {
+ strlcpy(lib_name, full_lib_name, sizeof(lib_name));
+ break;
+ }
+ }
+ }
+
/* Do we have that library already? */
if (proc_each_library(proc, NULL, library_with_key_cb, &key))
continue;