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authorAndrew Cagney <cagney@redhat.com>2003-08-18 20:04:56 +0000
committerAndrew Cagney <cagney@redhat.com>2003-08-18 20:04:56 +0000
commit8b148df9ac8532b4a7cd0be2fdd011d29037e435 (patch)
treecf06b7ccca66764a7a1823a25600df7a756108c8 /gdb/x86-64-tdep.c
parent4091ea4e210e42c1d028e2a6143ff74d47e0aedf (diff)
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Index: ChangeLog
2003-08-18 Andrew Cagney <cagney@redhat.com> * gdbarch.sh (FRAME_RED_ZONE_SIZE): New architecture method. * gdbarch.h, gdbarch.c: Re-generate. * infcall.c (call_function_by_hand): Adjust the SP by frame_red_zone_size before allocating any stack space. * rs6000-tdep.c (rs6000_gdbarch_init): Set "frame_red_zone_size". * x86-64-tdep.c (x86_64_frame_align): New function. (x86_64_init_abi): Set "frame_red_zone_size" and "frame_align". * x86-64-tdep.c (x86_64_push_arguments): Revert 2003-08-07 change. Remove code adjusting SP so that it skips over the Red Zone. Index: doc/ChangeLog 2003-08-18 Andrew Cagney <cagney@redhat.com> * gdbint.texinfo (Target Architecture Definition): Document "frame_red_zone_size".
Diffstat (limited to 'gdb/x86-64-tdep.c')
-rw-r--r--gdb/x86-64-tdep.c17
1 files changed, 10 insertions, 7 deletions
diff --git a/gdb/x86-64-tdep.c b/gdb/x86-64-tdep.c
index 1edfc9e..78d06d3 100644
--- a/gdb/x86-64-tdep.c
+++ b/gdb/x86-64-tdep.c
@@ -614,13 +614,6 @@ x86_64_push_arguments (struct regcache *regcache, int nargs,
int *stack_values;
stack_values = alloca (nargs * sizeof (int));
- /* Before storing anything to the stack we must skip
- the "Red zone" (see the "Function calling sequence" section
- of AMD64 ABI).
- It could have already been skipped in the function's
- prologue, but we don't care and will easily skip it once again. */
- sp -= 128;
-
for (i = 0; i < nargs; i++)
{
enum x86_64_reg_class class[MAX_CLASSES];
@@ -1203,6 +1196,14 @@ x86_64_unwind_dummy_id (struct gdbarch *gdbarch, struct frame_info *next_frame)
return frame_id_build (fp + 16, frame_pc_unwind (next_frame));
}
+/* 16 byte align the SP per frame requirements. */
+
+static CORE_ADDR
+x86_64_frame_align (struct gdbarch *gdbarch, CORE_ADDR sp)
+{
+ return sp & -(CORE_ADDR)16;
+}
+
void
x86_64_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
@@ -1246,6 +1247,8 @@ x86_64_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
/* Call dummy code. */
set_gdbarch_push_dummy_call (gdbarch, x86_64_push_dummy_call);
+ set_gdbarch_frame_align (gdbarch, x86_64_frame_align);
+ set_gdbarch_frame_red_zone_size (gdbarch, 128);
set_gdbarch_convert_register_p (gdbarch, x86_64_convert_register_p);
set_gdbarch_register_to_value (gdbarch, i387_register_to_value);