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S390: Skip prologue using SAL information, if possible

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Instead of analyzing the prologue and possibly coming to a wrong
conclusion, this change tries to skip the prologue with the use of
skip_prologue_using_sal.  Only if that fails, the prologue analyzer is
invoked as before.

gdb/ChangeLog:

	* s390-linux-tdep.c (s390_skip_prologue): Skip the prologue using
	SAL, if possible.
This commit is contained in:
Andreas Arnez 2015-03-11 11:11:45 +01:00 committed by Andreas Krebbel
parent 183961935e
commit f054145ed2
2 changed files with 15 additions and 1 deletions
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5
gdb/ChangeLog
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@ -1,3 +1,8 @@
2015-03-11 Andreas Arnez <arnez@linux.vnet.ibm.com>
* s390-linux-tdep.c (s390_skip_prologue): Skip the prologue using
SAL, if possible.
2015-03-11 Andreas Arnez <arnez@linux.vnet.ibm.com>
* s390-linux-nat.c (struct arch_lwp_info): New.

11
gdb/s390-linux-tdep.c
View File

@ -1462,7 +1462,16 @@ static CORE_ADDR
s390_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc)
{
struct s390_prologue_data data;
CORE_ADDR skip_pc;
CORE_ADDR skip_pc, func_addr;
if (find_pc_partial_function (pc, NULL, &func_addr, NULL))
{
CORE_ADDR post_prologue_pc
= skip_prologue_using_sal (gdbarch, func_addr);
if (post_prologue_pc != 0)
return max (pc, post_prologue_pc);
}
skip_pc = s390_analyze_prologue (gdbarch, pc, (CORE_ADDR)-1, &data);
return skip_pc ? skip_pc : pc;
}