ld.elf_so: memset mmaped BSS pages to zero

JIRA: RTOS-644
phoenix-rtos · Oct 31, 2024 · 7bdb54f · 7bdb54f
1 parent cc3d77d
commit 7bdb54f
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/ld.elf_so/map_object.c b/ld.elf_so/map_object.c
@@ -344,6 +344,8 @@ _rtld_map_object(const char *path, int fd, const struct stat *sb)
 		goto error;
 	}
 
+	printf("%s: %p [%x]\n", path, mapbase, 0x00105704 - (__u32)mapbase);
+
 	/* Unmap additional space. */
 	if (alignment_overmap != 0) {
 		front_alignment_overmap = (base_alignment - (((Elf_Addr)mapbase) & (base_alignment - 1))) & (base_alignment - 1);
@@ -435,6 +437,10 @@ _rtld_map_object(const char *path, int fd, const struct stat *sb)
 					    path, xstrerror(errno));
 					goto error;
 				}
+#ifdef phoenix
+				/* On phoenix pages from MAP_ANON are not zero. */
+				memset(bss_addr, 0, bss_vlimit - bss_vaddr);
+#endif
 			}
 		}