diff options
Diffstat (limited to 'gdb/gdbserver/linux-ppc-low.c')
| -rw-r--r-- | gdb/gdbserver/linux-ppc-low.c | 45 |
1 files changed, 24 insertions, 21 deletions
diff --git a/gdb/gdbserver/linux-ppc-low.c b/gdb/gdbserver/linux-ppc-low.c index 30fcd41..b440b0e 100644 --- a/gdb/gdbserver/linux-ppc-low.c +++ b/gdb/gdbserver/linux-ppc-low.c @@ -467,9 +467,6 @@ ppc_fill_vsxregset (struct regcache *regcache, void *buf) int i, base; char *regset = (char *) buf; - if (!(ppc_hwcap & PPC_FEATURE_HAS_VSX)) - return; - base = find_regno (regcache->tdesc, "vs0h"); for (i = 0; i < 32; i++) collect_register (regcache, base + i, ®set[i * 8]); @@ -481,9 +478,6 @@ ppc_store_vsxregset (struct regcache *regcache, const void *buf) int i, base; const char *regset = (const char *) buf; - if (!(ppc_hwcap & PPC_FEATURE_HAS_VSX)) - return; - base = find_regno (regcache->tdesc, "vs0h"); for (i = 0; i < 32; i++) supply_register (regcache, base + i, ®set[i * 8]); @@ -497,9 +491,6 @@ ppc_fill_vrregset (struct regcache *regcache, void *buf) int i, base; char *regset = (char *) buf; - if (!(ppc_hwcap & PPC_FEATURE_HAS_ALTIVEC)) - return; - base = find_regno (regcache->tdesc, "vr0"); for (i = 0; i < 32; i++) collect_register (regcache, base + i, ®set[i * 16]); @@ -514,9 +505,6 @@ ppc_store_vrregset (struct regcache *regcache, const void *buf) int i, base; const char *regset = (const char *) buf; - if (!(ppc_hwcap & PPC_FEATURE_HAS_ALTIVEC)) - return; - base = find_regno (regcache->tdesc, "vr0"); for (i = 0; i < 32; i++) supply_register (regcache, base + i, ®set[i * 16]); @@ -538,9 +526,6 @@ ppc_fill_evrregset (struct regcache *regcache, void *buf) int i, ev0; struct gdb_evrregset_t *regset = (struct gdb_evrregset_t *) buf; - if (!(ppc_hwcap & PPC_FEATURE_HAS_SPE)) - return; - ev0 = find_regno (regcache->tdesc, "ev0h"); for (i = 0; i < 32; i++) collect_register (regcache, ev0 + i, ®set->evr[i]); @@ -555,9 +540,6 @@ ppc_store_evrregset (struct regcache *regcache, const void *buf) int i, ev0; const struct gdb_evrregset_t *regset = (const struct gdb_evrregset_t *) buf; - if (!(ppc_hwcap & PPC_FEATURE_HAS_SPE)) - return; - ev0 = find_regno (regcache->tdesc, "ev0h"); for (i = 0; i < 32; i++) supply_register (regcache, ev0 + i, ®set->evr[i]); @@ -579,11 +561,11 @@ static struct regset_info ppc_regsets[] = { fetch them every time, but still fall back to PTRACE_PEEKUSER for the general registers. Some kernels support these, but not the newer PPC_PTRACE_GETREGS. */ - { PTRACE_GETVSXREGS, PTRACE_SETVSXREGS, 0, SIZEOF_VSXREGS, EXTENDED_REGS, + { PTRACE_GETVSXREGS, PTRACE_SETVSXREGS, 0, 0, EXTENDED_REGS, ppc_fill_vsxregset, ppc_store_vsxregset }, - { PTRACE_GETVRREGS, PTRACE_SETVRREGS, 0, SIZEOF_VRREGS, EXTENDED_REGS, + { PTRACE_GETVRREGS, PTRACE_SETVRREGS, 0, 0, EXTENDED_REGS, ppc_fill_vrregset, ppc_store_vrregset }, - { PTRACE_GETEVRREGS, PTRACE_SETEVRREGS, 0, 32 * 4 + 8 + 4, EXTENDED_REGS, + { PTRACE_GETEVRREGS, PTRACE_SETEVRREGS, 0, 0, EXTENDED_REGS, ppc_fill_evrregset, ppc_store_evrregset }, { 0, 0, 0, 0, GENERAL_REGS, ppc_fill_gregset, NULL }, NULL_REGSET @@ -619,7 +601,9 @@ static void ppc_arch_setup (void) { const struct target_desc *tdesc; + struct regset_info *regset; struct ppc_linux_features features = ppc_linux_no_features; + int tid = lwpid_of (current_thread); features.wordsize = ppc_linux_target_wordsize (tid); @@ -671,6 +655,25 @@ ppc_arch_setup (void) #endif current_process ()->tdesc = tdesc; + + for (regset = ppc_regsets; regset->size >= 0; regset++) + switch (regset->get_request) + { + case PTRACE_GETVRREGS: + regset->size = features.altivec ? SIZEOF_VRREGS : 0; + break; + case PTRACE_GETVSXREGS: + regset->size = features.vsx ? SIZEOF_VSXREGS : 0; + break; + case PTRACE_GETEVRREGS: + if (ppc_hwcap & PPC_FEATURE_HAS_SPE) + regset->size = 32 * 4 + 8 + 4; + else + regset->size = 0; + break; + default: + break; + } } /* Implementation of linux_target_ops method "supports_tracepoints". */ |