diff options
Diffstat (limited to 'gdb/ppc-linux-tdep.c')
| -rw-r--r-- | gdb/ppc-linux-tdep.c | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/gdb/ppc-linux-tdep.c b/gdb/ppc-linux-tdep.c index 585260bf416..f9f2d84ff28 100644 --- a/gdb/ppc-linux-tdep.c +++ b/gdb/ppc-linux-tdep.c @@ -37,6 +37,7 @@ #include "ppc-tdep.h" #include "trad-frame.h" #include "frame-unwind.h" +#include "gdb_assert.h" /* The following instructions are used in the signal trampoline code on GNU/Linux PPC. The kernel used to use magic syscalls 0x6666 and @@ -1058,6 +1059,98 @@ ppc_linux_regset_from_core_section (struct gdbarch *core_arch, } static void +ppc_linux_supply_speregset (const struct regset *regset, + struct regcache *regcache, + int regnum, + const void *buf, + size_t len) +{ + struct gdbarch *arch = get_regcache_arch (regcache); + struct gdbarch_tdep *tdep = gdbarch_tdep (arch); + const struct speregset *speregset = buf; + + gdb_assert (len == sizeof (*speregset)); + gdb_assert (register_size (arch, tdep->ppc_ev0_regnum) + == sizeof (speregset->gpr[0])); + gdb_assert (register_size (arch, tdep->ppc_acc_regnum) + == sizeof (speregset->acc)); + gdb_assert (register_size (arch, tdep->ppc_spefscr_regnum) + == sizeof (speregset->spefscr)); + + if (regnum == -1) + { + int i; + + for (i = 0; i < 32; i++) + regcache_raw_supply (regcache, tdep->ppc_ev0_regnum + i, + &speregset->gpr[i]); + } + else if (tdep->ppc_ev0_regnum <= regnum + && regnum <= tdep->ppc_ev31_regnum) + regcache_raw_supply (regcache, tdep->ppc_ev0_regnum + regnum, + &speregset->gpr[regnum - tdep->ppc_ev0_regnum]); + + if (regnum == tdep->ppc_acc_regnum + || regnum == -1) + regcache_raw_supply (regcache, tdep->ppc_acc_regnum, + &speregset->acc); + + if (regnum == tdep->ppc_spefscr_regnum + || regnum == -1) + regcache_raw_supply (regcache, tdep->ppc_spefscr_regnum, + &speregset->spefscr); +} + +static void +ppc_linux_collect_speregset (const struct regset *regset, + const struct regcache *regcache, + int regnum, + void *buf, + size_t len) +{ + struct gdbarch *arch = get_regcache_arch (regcache); + struct gdbarch_tdep *tdep = gdbarch_tdep (arch); + struct speregset *speregset = buf; + + gdb_assert (len == sizeof (*speregset)); + gdb_assert (register_size (arch, tdep->ppc_ev0_regnum) + == sizeof (speregset->gpr[0])); + gdb_assert (register_size (arch, tdep->ppc_acc_regnum) + == sizeof (speregset->acc)); + gdb_assert (register_size (arch, tdep->ppc_spefscr_regnum) + == sizeof (speregset->spefscr)); + + if (regnum == -1) + { + int i; + + for (i = 0; i < 32; i++) + regcache_raw_collect (regcache, tdep->ppc_ev0_regnum + i, + &speregset->gpr[i]); + } + else if (tdep->ppc_ev0_regnum <= regnum + && regnum <= tdep->ppc_ev31_regnum) + regcache_raw_collect (regcache, regnum, + &speregset->gpr[regnum - tdep->ppc_ev0_regnum]); + + if (regnum == tdep->ppc_acc_regnum + || regnum == -1) + regcache_raw_collect (regcache, tdep->ppc_acc_regnum, &speregset->acc); + + if (regnum == tdep->ppc_spefscr_regnum + || regnum == -1) + regcache_raw_collect (regcache, tdep->ppc_spefscr_regnum, + &speregset->spefscr); +} + +static const struct regset ppc_linux_speregset = +{ + 0, + ppc_linux_supply_speregset, + ppc_linux_collect_speregset +}; + +static void ppc_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) { @@ -1093,6 +1186,18 @@ ppc_linux_init_abi (struct gdbarch_info info, set_solib_svr4_fetch_link_map_offsets (gdbarch, ppc_linux_svr4_fetch_link_map_offsets); } + + if (info.bfd_arch_info->arch == bfd_arch_powerpc + && info.bfd_arch_info->mach == bfd_mach_ppc_e500) + { + /* On the e500, the GPR's are really 64 bits long. However, we + continue to treat the gpr's as if they were 32 bits long, and + handle the upper haves separately. This means that we need a + special way to pass the upper halves through thread_db. */ + set_gdbarch_xregs_regset (gdbarch, &ppc_linux_speregset); + set_gdbarch_xregs_size (gdbarch, sizeof (struct speregset)); + set_gdbarch_xregs_name (gdbarch, "SPE vector"); + } if (tdep->wordsize == 8) { |