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authorPedro Alves <palves@redhat.com>2007-09-03 22:24:24 +0000
committerPedro Alves <palves@redhat.com>2007-09-03 22:24:24 +0000
commit6dc134122f43d3607284c0e372e239321b4ab7fb (patch)
tree431c7aec6b3c25fbfcd65aff35afc85596df26e8 /gdb/arm-wince-tdep.c
parentaec18585f04e9410cc3c965b1e33e8b5b056e018 (diff)
downloadbinutils-gdb-6dc134122f43d3607284c0e372e239321b4ab7fb.tar.gz
* arm-tdep.h (arm_skip_stub): Declare.
* arm-wince-tdep.c: Don't include "solib-svr4.h". Include "gdbcore.h". (arm_pe_skip_trampoline_code): New function. (arm_wince_init_abi): Register arm_pe_skip_trampoline_code as gdbarch_skip_trampoline_code callback. * Makefile.in (arm-wince-tdep.o): Update dependencies.
Diffstat (limited to 'gdb/arm-wince-tdep.c')
-rw-r--r--gdb/arm-wince-tdep.c42
1 files changed, 40 insertions, 2 deletions
diff --git a/gdb/arm-wince-tdep.c b/gdb/arm-wince-tdep.c
index 423589655d2..dd7e3efed5d 100644
--- a/gdb/arm-wince-tdep.c
+++ b/gdb/arm-wince-tdep.c
@@ -20,7 +20,7 @@
#include "defs.h"
#include "osabi.h"
-#include "solib-svr4.h"
+#include "gdbcore.h"
#include "target.h"
#include "gdb_string.h"
@@ -34,6 +34,44 @@ static const char arm_wince_thumb_le_breakpoint[] = { 0xfe, 0xdf };
#define ARM_WINCE_JB_ELEMENT_SIZE INT_REGISTER_SIZE
#define ARM_WINCE_JB_PC 10
+static CORE_ADDR
+arm_pe_skip_trampoline_code (struct frame_info *frame, CORE_ADDR pc)
+{
+ ULONGEST indirect;
+ struct minimal_symbol *indsym;
+ char *symname;
+ CORE_ADDR next_pc;
+
+ /* The format of an ARM DLL trampoline is:
+ ldr ip, [pc]
+ ldr pc, [ip]
+ .dw __imp_<func> */
+
+ if (pc == 0
+ || read_memory_unsigned_integer (pc + 0, 4) != 0xe59fc000
+ || read_memory_unsigned_integer (pc + 4, 4) != 0xe59cf000)
+ return 0;
+
+ indirect = read_memory_unsigned_integer (pc + 8, 4);
+ if (indirect == 0)
+ return 0;
+
+ indsym = lookup_minimal_symbol_by_pc (indirect);
+ if (indsym == NULL)
+ return 0;
+
+ symname = SYMBOL_LINKAGE_NAME (indsym);
+ if (symname == NULL || strncmp (symname, "__imp_", 6) != 0)
+ return 0;
+
+ next_pc = read_memory_unsigned_integer (indirect, 4);
+ if (next_pc != 0)
+ return next_pc;
+
+ /* Check with the default arm gdbarch_skip_trampoline. */
+ return arm_skip_stub (frame, pc);
+}
+
static void
arm_wince_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
@@ -54,7 +92,7 @@ arm_wince_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
set_gdbarch_char_signed (gdbarch, 1);
/* Shared library handling. */
- set_gdbarch_skip_trampoline_code (gdbarch, find_solib_trampoline_target);
+ set_gdbarch_skip_trampoline_code (gdbarch, arm_pe_skip_trampoline_code);
/* Single stepping. */
set_gdbarch_software_single_step (gdbarch, arm_software_single_step);