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authorH.J. Lu <hjl.tools@gmail.com>2012-07-04 20:46:20 +0000
committerH.J. Lu <hjl.tools@gmail.com>2012-07-04 20:46:20 +0000
commit23e2d720d191b57feecfbfb80e036a6725189c20 (patch)
treed1e0e97915138ceab5ad2edec86bbae60a1a6daa /gdb
parentf9cf0f4ab2722b9e0ebd98f66d3072facc006b3f (diff)
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Add sp_regnum_from_eax/pc_regnum_from_eax to i386 gdbarch_tdep
* amd64-tdep.c (amd64_x32_init_abi): Set sp_regnum_from_eax to AMD64_RSP_REGNUM and pc_regnum_from_eax to AMD64_RIP_REGNUM. * i386-tdep.c (i386_gdbarch_init): Initialize sp_regnum_from_eax and pc_regnum_from_eax to -1. Update SP regnum from sp_regnum_from_eax and PC regnum from pc_regnum_from_eax if needed. * i386-tdep.h (gdbarch_tdep): Add sp_regnum_from_eax and pc_regnum_from_eax.
Diffstat (limited to 'gdb')
-rw-r--r--gdb/ChangeLog13
-rw-r--r--gdb/amd64-tdep.c3
-rw-r--r--gdb/i386-tdep.c11
-rw-r--r--gdb/i386-tdep.h8
4 files changed, 35 insertions, 0 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 1d8fba1..2a5c3d0 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,16 @@
+2012-07-04 H.J. Lu <hongjiu.lu@intel.com>
+
+ * amd64-tdep.c (amd64_x32_init_abi): Set sp_regnum_from_eax to
+ AMD64_RSP_REGNUM and pc_regnum_from_eax to AMD64_RIP_REGNUM.
+
+ * i386-tdep.c (i386_gdbarch_init): Initialize sp_regnum_from_eax
+ and pc_regnum_from_eax to -1. Update SP regnum from
+ sp_regnum_from_eax and PC regnum from pc_regnum_from_eax if
+ needed.
+
+ * i386-tdep.h (gdbarch_tdep): Add sp_regnum_from_eax and
+ pc_regnum_from_eax.
+
2012-07-03 Jan Kratochvil <jan.kratochvil@redhat.com>
Fix 'warning: parameter has incomplete type' with gcc-3.4.6.
diff --git a/gdb/amd64-tdep.c b/gdb/amd64-tdep.c
index 8ae1142..5424926 100644
--- a/gdb/amd64-tdep.c
+++ b/gdb/amd64-tdep.c
@@ -2946,6 +2946,9 @@ amd64_x32_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
tdesc = tdesc_x32;
tdep->tdesc = tdesc;
+ tdep->sp_regnum_from_eax = AMD64_RSP_REGNUM;
+ tdep->pc_regnum_from_eax = AMD64_RIP_REGNUM;
+
tdep->num_dword_regs = 17;
set_tdesc_pseudo_register_type (gdbarch, amd64_x32_pseudo_register_type);
diff --git a/gdb/i386-tdep.c b/gdb/i386-tdep.c
index fd5969d..6a02906 100644
--- a/gdb/i386-tdep.c
+++ b/gdb/i386-tdep.c
@@ -7805,6 +7805,9 @@ i386_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
tdep->num_mmx_regs = 8;
tdep->num_ymm_regs = 0;
+ tdep->sp_regnum_from_eax = -1;
+ tdep->pc_regnum_from_eax = -1;
+
tdesc_data = tdesc_data_alloc ();
set_gdbarch_relocate_instruction (gdbarch, i386_relocate_instruction);
@@ -7849,6 +7852,14 @@ i386_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
/* Support dword pseudo-register if it hasn't been disabled. */
tdep->eax_regnum = ymm0_regnum;
ymm0_regnum += tdep->num_dword_regs;
+ if (tdep->sp_regnum_from_eax != -1)
+ set_gdbarch_sp_regnum (gdbarch,
+ (tdep->eax_regnum
+ + tdep->sp_regnum_from_eax));
+ if (tdep->pc_regnum_from_eax != -1)
+ set_gdbarch_pc_regnum (gdbarch,
+ (tdep->eax_regnum
+ + tdep->pc_regnum_from_eax));
}
else
tdep->eax_regnum = -1;
diff --git a/gdb/i386-tdep.h b/gdb/i386-tdep.h
index 5f233f5..76afdce 100644
--- a/gdb/i386-tdep.h
+++ b/gdb/i386-tdep.h
@@ -149,6 +149,14 @@ struct gdbarch_tdep
of pseudo dword register support. */
int eax_regnum;
+ /* Register number for SP, relative to %eax. Set this to -1 to
+ indicate the absence of pseudo SP register support. */
+ int sp_regnum_from_eax;
+
+ /* Register number for PC, relative to %eax. Set this to -1 to
+ indicate the absence of pseudo PC register support. */
+ int pc_regnum_from_eax;
+
/* Number of core registers. */
int num_core_regs;