From 81ab84fd6cdaab121988e0c424f8cdc0ae472e14 Mon Sep 17 00:00:00 2001 From: Pedro Franco de Carvalho Date: Fri, 26 Oct 2018 09:37:55 -0300 Subject: [PATCH] [PowerPC] Reject tdescs with VSX and no FPU or Altivec Currently rs6000_gdbarch_init will accept a tdesc with the "org.gnu.gdb.power.vsx" feature but without the "org.gnu.gdb.power.altivec" or "org.gnu.gdb.power.fpu". It isn't clear from the standard features documentation that these are requirements. However, these tdescs would cause trouble in the VSX pseudo-register functions, so this patch will cause them to be rejected. gdb/ChangeLog: 2018-10-26 Pedro Franco de Carvalho * rs6000-tdep.c (rs6000_gdbarch_init): Reject tdescs with vsx but without altivec or fpu. --- gdb/ChangeLog | 5 +++++ gdb/rs6000-tdep.c | 3 ++- 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/gdb/ChangeLog b/gdb/ChangeLog index e07af9d..74c7b39 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,8 @@ +2018-10-26 Pedro Franco de Carvalho + + * rs6000-tdep.c (rs6000_gdbarch_init): Reject tdescs with vsx but + without altivec or fpu. + 2018-10-26 Edjunior Barbosa Machado Pedro Franco de Carvalho diff --git a/gdb/rs6000-tdep.c b/gdb/rs6000-tdep.c index 54591db..7e41d8f 100644 --- a/gdb/rs6000-tdep.c +++ b/gdb/rs6000-tdep.c @@ -6042,7 +6042,8 @@ rs6000_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) valid_p &= tdesc_numbered_register (feature, tdesc_data, PPC_VSR0_UPPER_REGNUM + i, vsx_regs[i]); - if (!valid_p) + + if (!valid_p || !have_fpu || !have_altivec) { tdesc_data_cleanup (tdesc_data); return NULL; -- 2.7.4