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* s390-tdep.c (struct frame_extra_info): new member:

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'stack_bought_valid'.
(s390_get_frame_info): Set fextra_info->stack_bought_valid if we
initialize fextra_info->stack_bought.
(s390_frameless_function_invocation): Don't trust the value of
fextra_info_ptr->stack_bought unless
fextra_info->stack_bought_valid is set.
This commit is contained in:
Jim Blandy 2003-07-02 19:20:55 +00:00
parent 4bc8c58814
commit a9dd42f197
2 changed files with 12 additions and 1 deletions
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8
gdb/ChangeLog
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@ -1,5 +1,13 @@
2003-07-02 Jim Blandy <jimb@redhat.com>
* s390-tdep.c (struct frame_extra_info): new member:
'stack_bought_valid'.
(s390_get_frame_info): Set fextra_info->stack_bought_valid if we
initialize fextra_info->stack_bought.
(s390_frameless_function_invocation): Don't trust the value of
fextra_info_ptr->stack_bought unless
fextra_info->stack_bought_valid is set.
New S390 prologue analyzer.
* s390-tdep.c (struct prologue_value, enum pv_boolean): New types.
(pv_set_to_unknown, pv_set_to_constant, pv_set_to_register,

5
gdb/s390-tdep.c
View File

@ -113,6 +113,7 @@ struct frame_extra_info
CORE_ADDR sig_fixed_saved_pc_valid;
CORE_ADDR sig_fixed_saved_pc;
CORE_ADDR frame_pointer_saved_pc; /* frame pointer needed for alloca */
CORE_ADDR stack_bought_valid;
CORE_ADDR stack_bought; /* amount we decrement the stack pointer by */
CORE_ADDR sigcontext;
};
@ -1392,6 +1393,7 @@ s390_get_frame_info (CORE_ADDR start_pc,
if (frame_size != -1)
{
fextra_info->stack_bought_valid = 1;
fextra_info->stack_bought = frame_size;
}
@ -1604,7 +1606,8 @@ s390_frameless_function_invocation (struct frame_info *fi)
s390_get_frame_info (s390_sniff_pc_function_start (get_frame_pc (fi), fi),
fextra_info_ptr, fi, 1);
}
frameless = ((fextra_info_ptr->stack_bought == 0));
frameless = (fextra_info_ptr->stack_bought_valid
&& fextra_info_ptr->stack_bought == 0);
}
return frameless;