From 70104a908773d7df0af48ca5c48856886bafea13 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Marcin=20Ko=C5=9Bcielnicki?= Date: Sat, 14 Nov 2015 23:08:07 +0100 Subject: gdb/s390: Fill gen_return_address hook. gdb/ChangeLog: * s390-linux-tdep.c (s390_gen_return_address): New function. (s390_gdbarch_init): Fill gen_return_address hook. --- gdb/ChangeLog | 5 +++++ gdb/s390-linux-tdep.c | 15 +++++++++++++++ 2 files changed, 20 insertions(+) (limited to 'gdb') diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 6eeb1e2..cb95a89 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,8 @@ +2016-03-13 Marcin Kościelnicki + + * s390-linux-tdep.c (s390_gen_return_address): New function. + (s390_gdbarch_init): Fill gen_return_address hook. + 2016-03-11 Andrew Burgess * symmisc.c (maintenance_info_line_tables): New function. diff --git a/gdb/s390-linux-tdep.c b/gdb/s390-linux-tdep.c index 253d69c..fc57592 100644 --- a/gdb/s390-linux-tdep.c +++ b/gdb/s390-linux-tdep.c @@ -639,6 +639,20 @@ s390_ax_pseudo_register_push_stack (struct gdbarch *gdbarch, return 0; } +/* The "gen_return_address" gdbarch method. Since this is supposed to be + just a best-effort method, and we don't really have the means to run + the full unwinder here, just collect the link register. */ + +static void +s390_gen_return_address (struct gdbarch *gdbarch, + struct agent_expr *ax, struct axs_value *value, + CORE_ADDR scope) +{ + value->type = register_type (gdbarch, S390_R14_REGNUM); + value->kind = axs_lvalue_register; + value->u.reg = S390_R14_REGNUM; +} + /* A helper for s390_software_single_step, decides if an instruction is a partial-execution instruction that needs to be executed until @@ -8002,6 +8016,7 @@ s390_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) s390_ax_pseudo_register_collect); set_gdbarch_ax_pseudo_register_push_stack (gdbarch, s390_ax_pseudo_register_push_stack); + set_gdbarch_gen_return_address (gdbarch, s390_gen_return_address); tdesc_use_registers (gdbarch, tdesc, tdesc_data); set_gdbarch_register_name (gdbarch, s390_register_name); -- cgit v1.1