sparc: Fix la_symbind for bind-now (BZ 23734)

The sparc ABI has multiple cases on how to handle JMP_SLOT relocations,
(sparc_fixup_plt/sparc64_fixup_plt).  For BINDNOW, _dl_audit_symbind
will be responsible to setup the final relocation value; while for
lazy binding _dl_fixup/_dl_profile_fixup will call the audit callback
and tail cail elf_machine_fixup_plt (which will call
sparc64_fixup_plt).

This patch fixes by issuing the SPARC specific routine on bindnow and
forwarding the audit value to elf_machine_fixup_plt for lazy resolution.
It fixes the la_symbind for bind-now tests on sparc64 and sparcv9:

  elf/tst-audit24a
  elf/tst-audit24b
  elf/tst-audit24c
  elf/tst-audit24d

Checked on sparc64-linux-gnu and sparcv9-linux-gnu.
Tested-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>

(cherry picked from commit dddc88587a7f48cbb361d9929ec23d790164eef8)

6 files changed, 56 insertions, 7 deletions

diff --git a/sysdeps/generic/dl-lookupcfg.h b/sysdeps/generic/dl-lookupcfg.h
index cc5e9d619b..e4f6358f88 100644
--- a/sysdeps/generic/dl-lookupcfg.h
+++ b/sysdeps/generic/dl-lookupcfg.h
@@ -27,5 +27,5 @@
 #define DL_FIXUP_VALUE_ADDR(value) (value)
 #define DL_FIXUP_ADDR_VALUE(addr) (addr)
 #define DL_FIXUP_BINDNOW_ADDR_VALUE(addr) (addr)
-#define DL_FIXUP_BINDNOW_RELOC(value, new_value, st_value) \
+#define DL_FIXUP_BINDNOW_RELOC(l, reloc, value, new_value, st_value, lazy) \
   (*value) = st_value;
diff --git a/sysdeps/generic/ldsodefs.h b/sysdeps/generic/ldsodefs.h
index c99dad77cc..877c60ba89 100644
--- a/sysdeps/generic/ldsodefs.h
+++ b/sysdeps/generic/ldsodefs.h
@@ -1377,8 +1377,8 @@ void _dl_audit_preinit (struct link_map *l);
    the flags with LA_SYMB_NOPLTENTER | LA_SYMB_NOPLTEXIT prior calling
    la_symbind{32,64}.  */
 void _dl_audit_symbind (struct link_map *l, struct reloc_result *reloc_result,
-			const ElfW(Sym) *defsym, DL_FIXUP_VALUE_TYPE *value,
-			lookup_t result)
+			const void *reloc, const ElfW(Sym) *defsym,
+			DL_FIXUP_VALUE_TYPE *value, lookup_t result, bool lazy)
   attribute_hidden;
 /* Same as _dl_audit_symbind, but also sets LA_SYMB_DLSYM flag.  */
 void _dl_audit_symbind_alt (struct link_map *l, const ElfW(Sym) *ref,
diff --git a/sysdeps/hppa/dl-lookupcfg.h b/sysdeps/hppa/dl-lookupcfg.h
index 66b3ff9763..28daf3f89b 100644
--- a/sysdeps/hppa/dl-lookupcfg.h
+++ b/sysdeps/hppa/dl-lookupcfg.h
@@ -84,5 +84,5 @@ void attribute_hidden _dl_unmap (struct link_map *map);
 #define DL_FIXUP_ADDR_VALUE(addr) \
   (*(DL_FIXUP_VALUE_TYPE *) ((uintptr_t) (addr) & ~2))
 #define DL_FIXUP_BINDNOW_ADDR_VALUE(addr) (addr)
-#define DL_FIXUP_BINDNOW_RELOC(value, new_value, st_value)	\
+#define DL_FIXUP_BINDNOW_RELOC(l, reloc, value, new_value, st_value, lazy) \
   *(value) = *(DL_FIXUP_VALUE_TYPE *) ((uintptr_t) (new_value) & ~2)
diff --git a/sysdeps/ia64/dl-lookupcfg.h b/sysdeps/ia64/dl-lookupcfg.h
index 0e47e529fe..64218fa7bb 100644
--- a/sysdeps/ia64/dl-lookupcfg.h
+++ b/sysdeps/ia64/dl-lookupcfg.h
@@ -75,5 +75,5 @@ extern void attribute_hidden _dl_unmap (struct link_map *map);
 #define DL_FIXUP_VALUE_ADDR(value) ((uintptr_t) &(value))
 #define DL_FIXUP_ADDR_VALUE(addr) (*(struct fdesc *) (addr))
 #define DL_FIXUP_BINDNOW_ADDR_VALUE(addr) (addr)
-#define DL_FIXUP_BINDNOW_RELOC(value, new_value, st_value) \
+#define DL_FIXUP_BINDNOW_RELOC(l, reloc, value, new_value, st_value, lazy) \
   (*value) = *(struct fdesc *) (st_value)
diff --git a/sysdeps/powerpc/dl-lookupcfg.h b/sysdeps/powerpc/dl-lookupcfg.h
index db0869bd33..0d6dcb8e25 100644
--- a/sysdeps/powerpc/dl-lookupcfg.h
+++ b/sysdeps/powerpc/dl-lookupcfg.h
@@ -25,7 +25,7 @@
 /* We need to correctly set the audit modules value for bind-now.  */
 # define DL_FIXUP_BINDNOW_ADDR_VALUE(addr) \
  (((Elf64_FuncDesc *)(addr))->fd_func)
-# define DL_FIXUP_BINDNOW_RELOC(value, new_value, st_value)	\
+# define DL_FIXUP_BINDNOW_RELOC(l, reloc, value, new_value, st_value, lazy) \
  ({								\
     Elf64_FuncDesc *opd = (Elf64_FuncDesc *) (value);		\
     opd->fd_func = (st_value);					\
@@ -34,6 +34,6 @@
   })
 #else
 # define DL_FIXUP_BINDNOW_ADDR_VALUE(addr) (addr)
-# define DL_FIXUP_BINDNOW_RELOC(value, new_value, st_value)	\
+# define DL_FIXUP_BINDNOW_RELOC(l, reloc, value, new_value, st_value, lazy) \
   (*value) = st_value;
 #endif
diff --git a/sysdeps/sparc/dl-lookupcfg.h b/sysdeps/sparc/dl-lookupcfg.h
new file mode 100644
index 0000000000..3a5a5c1d8c
--- /dev/null
+++ b/sysdeps/sparc/dl-lookupcfg.h
@@ -0,0 +1,49 @@
+/* Configuration of lookup functions.  SPARC64 version.
+   Copyright (C) 2023 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+/* The type of the return value of fixup/profile_fixup.  */
+#define DL_FIXUP_VALUE_TYPE ElfW(Addr)
+/* Construct a value of type DL_FIXUP_VALUE_TYPE from a code address
+   and a link map.  */
+#define DL_FIXUP_MAKE_VALUE(map, addr) (addr)
+/* Extract the code address from a value of type DL_FIXUP_MAKE_VALUE.
+ */
+#define DL_FIXUP_VALUE_CODE_ADDR(value) (value)
+#define DL_FIXUP_VALUE_ADDR(value) (value)
+#define DL_FIXUP_ADDR_VALUE(addr) (addr)
+#define DL_FIXUP_BINDNOW_ADDR_VALUE(addr) (addr)
+/* For bindnow, _dl_audit_symbind will be responsible to setup the final value
+   while for lazy binding _dl_fixup/_dl_profile_fixup will call the audit
+   callbacks and tail cail elf_machine_fixup_plt.  */
+#ifdef __arch64__
+# define DL_SPARC_FIXUP(l, r, value, new_value)                              \
+  sparc64_fixup_plt (l, r, value, new_value, (r)->r_addend, 0)
+#else
+# define DL_SPARC_FIXUP(l, r, value, new_value)                              \
+  sparc_fixup_plt (r, value, new_value, 0, 1)
+#endif
+#define DL_FIXUP_BINDNOW_RELOC(l, reloc, value, new_value, st_value, lazy)   \
+  ({                                                                         \
+     if (lazy)                                                               \
+       (*value) = st_value;                                                  \
+     else                                                                    \
+       {                                                                     \
+         const PLTREL *__r = (reloc);                                        \
+         DL_SPARC_FIXUP (l, __r, value, new_value);                          \
+       }                                                                     \
+  })