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authorMark Kettenis <kettenis@gnu.org>2003-11-09 17:32:32 +0000
committerMark Kettenis <kettenis@gnu.org>2003-11-09 17:32:32 +0000
commit0670c0aaee691287717b806774451633c5478ac5 (patch)
tree142953ee4162e11aa7680ae0ac115e7c76eba267 /gdb/arm-linux-tdep.c
parenta3640c7517a4f7b3754381d7feb90cda77ac48a3 (diff)
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See previous commit.
Diffstat (limited to 'gdb/arm-linux-tdep.c')
-rw-r--r--gdb/arm-linux-tdep.c89
1 files changed, 2 insertions, 87 deletions
diff --git a/gdb/arm-linux-tdep.c b/gdb/arm-linux-tdep.c
index b5fb496..c91c0fd 100644
--- a/gdb/arm-linux-tdep.c
+++ b/gdb/arm-linux-tdep.c
@@ -31,11 +31,7 @@
#include "osabi.h"
#include "arm-tdep.h"
-
-/* For shared library handling. */
-#include "symtab.h"
-#include "symfile.h"
-#include "objfiles.h"
+#include "glibc-tdep.h"
/* Under ARM GNU/Linux the traditional way of performing a breakpoint
is to execute a particular software interrupt, rather than use a
@@ -348,36 +344,6 @@ arm_linux_push_arguments (int nargs, struct value **args, CORE_ADDR sp,
with. Before the fixup/resolver code returns, it actually calls
the requested function and repairs &GOT[n+3]. */
-/* Find the minimal symbol named NAME, and return both the minsym
- struct and its objfile. This probably ought to be in minsym.c, but
- everything there is trying to deal with things like C++ and
- SOFUN_ADDRESS_MAYBE_TURQUOISE, ... Since this is so simple, it may
- be considered too special-purpose for general consumption. */
-
-static struct minimal_symbol *
-find_minsym_and_objfile (char *name, struct objfile **objfile_p)
-{
- struct objfile *objfile;
-
- ALL_OBJFILES (objfile)
- {
- struct minimal_symbol *msym;
-
- ALL_OBJFILE_MSYMBOLS (objfile, msym)
- {
- if (DEPRECATED_SYMBOL_NAME (msym)
- && strcmp (DEPRECATED_SYMBOL_NAME (msym), name) == 0)
- {
- *objfile_p = objfile;
- return msym;
- }
- }
- }
-
- return 0;
-}
-
-
/* Fetch, and possibly build, an appropriate link_map_offsets structure
for ARM linux targets using the struct offsets defined in <link.h>.
Note, however, that link.h is not actually referred to in this file.
@@ -421,61 +387,10 @@ arm_linux_svr4_fetch_link_map_offsets (void)
return lmp;
}
-static CORE_ADDR
-skip_hurd_resolver (CORE_ADDR pc)
-{
- /* The HURD dynamic linker is part of the GNU C library, so many
- GNU/Linux distributions use it. (All ELF versions, as far as I
- know.) An unresolved PLT entry points to "_dl_runtime_resolve",
- which calls "fixup" to patch the PLT, and then passes control to
- the function.
-
- We look for the symbol `_dl_runtime_resolve', and find `fixup' in
- the same objfile. If we are at the entry point of `fixup', then
- we set a breakpoint at the return address (at the top of the
- stack), and continue.
-
- It's kind of gross to do all these checks every time we're
- called, since they don't change once the executable has gotten
- started. But this is only a temporary hack --- upcoming versions
- of GNU/Linux will provide a portable, efficient interface for
- debugging programs that use shared libraries. */
-
- struct objfile *objfile;
- struct minimal_symbol *resolver
- = find_minsym_and_objfile ("_dl_runtime_resolve", &objfile);
-
- if (resolver)
- {
- struct minimal_symbol *fixup
- = lookup_minimal_symbol ("fixup", NULL, objfile);
-
- if (fixup && SYMBOL_VALUE_ADDRESS (fixup) == pc)
- return (DEPRECATED_SAVED_PC_AFTER_CALL (get_current_frame ()));
- }
-
- return 0;
-}
-
-/* See the comments for SKIP_SOLIB_RESOLVER at the top of infrun.c.
- This function:
- 1) decides whether a PLT has sent us into the linker to resolve
- a function reference, and
- 2) if so, tells us where to set a temporary breakpoint that will
- trigger when the dynamic linker is done. */
-
CORE_ADDR
arm_linux_skip_solib_resolver (CORE_ADDR pc)
{
- CORE_ADDR result;
-
- /* Plug in functions for other kinds of resolvers here. */
- result = skip_hurd_resolver (pc);
-
- if (result)
- return result;
-
- return 0;
+ return glibc_skip_solib_resolver (pc);
}
/* The constants below were determined by examining the following files