/* Target-dependent code for PowerPC systems running FreeBSD.
- Copyright (C) 2013-2017 Free Software Foundation, Inc.
+ Copyright (C) 2013-2020 Free Software Foundation, Inc.
This file is part of GDB.
#include "ppc-fbsd-tdep.h"
#include "fbsd-tdep.h"
#include "solib-svr4.h"
+#include "inferior.h"
/* 32-bit regset descriptions. */
/* Floating-point registers. */
/* .f0_offset = */ 0,
/* .fpscr_offset = */ 256,
- /* .fpscr_size = */ 8,
-#ifdef NOTYET
- /* AltiVec registers. */
- /* .vr0_offset = */ 0,
- /* .vscr_offset = */ 512 + 12,
- /* .vrsave_offset = */ 512
-#endif
+ /* .fpscr_size = */ 8
};
/* 64-bit regset descriptions. */
/* Floating-point registers. */
/* .f0_offset = */ 0,
/* .fpscr_offset = */ 256,
- /* .fpscr_size = */ 8,
-#ifdef NOYET
- /* AltiVec registers. */
- /* .vr0_offset = */ 0,
- /* .vscr_offset = */ 512 + 12,
- /* .vrsave_offset = */ 528
-#endif
+ /* .fpscr_size = */ 8
};
/* 32-bit general-purpose register set. */
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
if (tdep->wordsize == 4)
- cb (".reg", 148, &ppc32_fbsd_gregset, NULL, cb_data);
+ cb (".reg", 148, 148, &ppc32_fbsd_gregset, NULL, cb_data);
else
- cb (".reg", 296, &ppc64_fbsd_gregset, NULL, cb_data);
- cb (".reg2", 264, &ppc32_fbsd_fpregset, NULL, cb_data);
+ cb (".reg", 296, 296, &ppc64_fbsd_gregset, NULL, cb_data);
+ cb (".reg2", 264, 264, &ppc32_fbsd_fpregset, NULL, cb_data);
}
/* Default page size. */
regcache, readbuf, writebuf);
}
+/* Implement the "get_thread_local_address" gdbarch method. */
+
+static CORE_ADDR
+ppcfbsd_get_thread_local_address (struct gdbarch *gdbarch, ptid_t ptid,
+ CORE_ADDR lm_addr, CORE_ADDR offset)
+{
+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+ struct regcache *regcache;
+ int tp_offset, tp_regnum;
+
+ regcache = get_thread_arch_regcache (current_inferior ()->process_target (),
+ ptid, gdbarch);
+
+ if (tdep->wordsize == 4)
+ {
+ tp_offset = 0x7008;
+ tp_regnum = PPC_R0_REGNUM + 2;
+ }
+ else
+ {
+ tp_offset = 0x7010;
+ tp_regnum = PPC_R0_REGNUM + 13;
+ }
+ target_fetch_registers (regcache, tp_regnum);
+
+ ULONGEST tp;
+ if (regcache->cooked_read (tp_regnum, &tp) != REG_VALID)
+ error (_("Unable to fetch tcb pointer"));
+
+ /* tp points to the end of the TCB block. The first member of the
+ TCB is the pointer to the DTV array. */
+ CORE_ADDR dtv_addr = tp - tp_offset;
+ return fbsd_get_thread_local_address (gdbarch, dtv_addr, lm_addr, offset);
+}
static void
ppcfbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
set_gdbarch_fetch_tls_load_module_address (gdbarch,
svr4_fetch_objfile_link_map);
+ set_gdbarch_get_thread_local_address (gdbarch,
+ ppcfbsd_get_thread_local_address);
}
-/* Provide a prototype to silence -Wmissing-prototypes. */
-
-void _initialize_ppcfbsd_tdep (void);
-
void
_initialize_ppcfbsd_tdep (void)
{