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authorUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
committerUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
commita334319f6530564d22e775935d9c91663623a1b4 (patch)
treeb5877475619e4c938e98757d518bb1e9cbead751 /sysdeps/hppa/dl-lookupcfg.h
parent0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (diff)
downloadglibc-a334319f6530564d22e775935d9c91663623a1b4.tar.gz
(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.
Diffstat (limited to 'sysdeps/hppa/dl-lookupcfg.h')
-rw-r--r--sysdeps/hppa/dl-lookupcfg.h69
1 files changed, 69 insertions, 0 deletions
diff --git a/sysdeps/hppa/dl-lookupcfg.h b/sysdeps/hppa/dl-lookupcfg.h
new file mode 100644
index 0000000000..d393b3e427
--- /dev/null
+++ b/sysdeps/hppa/dl-lookupcfg.h
@@ -0,0 +1,69 @@
+/* Configuration of lookup functions.
+ Copyright (C) 2000 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+/* Like IA-64, PA-RISC needs more information from the symbol lookup
+ function than just the address. */
+#define DL_LOOKUP_RETURNS_MAP
+#define ELF_FUNCTION_PTR_IS_SPECIAL
+#define DL_UNMAP_IS_SPECIAL
+
+/* Forward declaration. */
+struct link_map;
+
+void *_dl_symbol_address (struct link_map *map, const ElfW(Sym) *ref);
+
+#define DL_SYMBOL_ADDRESS(map, ref) _dl_symbol_address(map, ref)
+
+Elf32_Addr _dl_lookup_address (const void *address);
+
+/* Clear the bottom two bits so generic code can find the fdesc entry */
+#define DL_LOOKUP_ADDRESS(addr) \
+ (_dl_lookup_address ((void *)((unsigned long)addr & ~3)))
+
+void _dl_unmap (struct link_map *map);
+
+#define DL_UNMAP(map) _dl_unmap (map)
+
+#define DL_AUTO_FUNCTION_ADDRESS(map, addr) \
+({ \
+ unsigned int fptr[2]; \
+ fptr[0] = (unsigned int) (addr); \
+ fptr[1] = (map)->l_info[DT_PLTGOT]->d_un.d_ptr; \
+ /* Set bit 30 to indicate to $$dyncall that this is a PLABEL. */ \
+ (ElfW(Addr))((unsigned int)fptr | 2); \
+})
+
+#define DL_STATIC_FUNCTION_ADDRESS(map, addr) \
+({ \
+ static unsigned int fptr[2]; \
+ fptr[0] = (unsigned int) (addr); \
+ fptr[1] = (map)->l_info[DT_PLTGOT]->d_un.d_ptr; \
+ /* Set bit 30 to indicate to $$dyncall that this is a PLABEL. */ \
+ (ElfW(Addr))((unsigned int)fptr | 2); \
+})
+
+
+/* The test for "addr & 2" below is to accomodate old binaries which
+ violated the ELF ABI by pointing DT_INIT and DT_FINI at a function
+ descriptor. */
+#define DL_DT_INIT_ADDRESS(map, addr) \
+ ((Elf32_Addr)(addr) & 2 ? (addr) : DL_AUTO_FUNCTION_ADDRESS (map, addr))
+#define DL_DT_FINI_ADDRESS(map, addr) \
+ ((Elf32_Addr)(addr) & 2 ? (addr) : DL_AUTO_FUNCTION_ADDRESS (map, addr))
+