Changeset 1567471 in mainline for uspace/lib/c

Timestamp:

2019-01-09T12:38:13Z (7 years ago)

Author:

Jiri Svoboda <jiri@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

272a293, 2d156bb

Parents:

d3e938c

git-author:

Jiri Svoboda <jiri@…> (2018-01-08 19:37:57)

git-committer:

Jiri Svoboda <jiri@…> (2019-01-09 12:38:13)

Message:

Enable dynamic linking on amd64

Location:

uspace/lib/c

Files:

• arch/amd64/include/libarch/rtld/module.h (added)
• arch/ia32/include/libarch/rtld/module.h (added)
• generic/elf/elf_mod.c (modified) (2 diffs)
• generic/rtld/module.c (modified) (2 diffs)

uspace/lib/c/generic/elf/elf_mod.c

@@ -420 +420 @@
         seg_ptr = (void *) seg_addr;
 
-        DPRINTF("Load segment at addr %p, size 0x%zx\n", (void *) seg_addr,
-            entry->p_memsz);
+        DPRINTF("Load segment at addr %p, size 0x%zx, flags %c%c%c\n", (void *) seg_addr,
+            entry->p_memsz,
+            (entry->p_flags & PF_R) ? 'r' : '-',
+            (entry->p_flags & PF_W) ? 'w' : '-',
+            (entry->p_flags & PF_X) ? 'x' : '-');
 
         if (entry->p_align > 1) {
@@ -484 +487 @@
                 return EE_OK;
 
-        rc = as_area_change_flags(seg_ptr, flags);
+        DPRINTF("as_area_change_flags(%p, %x)\n",
+            (uint8_t *) base + bias, flags);
+        rc = as_area_change_flags((uint8_t *) base + bias, flags);
         if (rc != EOK) {
                 DPRINTF("Failed to set memory area flags.\n");

uspace/lib/c/generic/rtld/module.c

@@ -50 +50 @@
 #include <rtld/rtld_arch.h>
 #include <rtld/module.h>
+#include <libarch/rtld/module.h>
 
 #include "../private/libc.h"
@@ -206 +207 @@
         DPRINTF("filename:'%s'\n", name_buf);
 
-        rc = elf_load_file_name(name_buf, ELDF_RW, &info);
+        rc = elf_load_file_name(name_buf, RTLD_MODULE_LDF, &info);
         if (rc != EE_OK) {
                 printf("Failed to load '%s'\n", name_buf);