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* symtab.c, symtab.h, source.c: Change find_line_pc_range to take

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a struct symtab_and_line argument, rather than a symtab and a line.
	Re-write it to be based on the address rather than bogusly adding
	one to the line number and hoping that has something to do with the
	end of the line.
This commit is contained in:
Jim Kingdon
1993-11-02 00:05:34 +00:00
parent f2e945df05
commit b86a1b3baa
3 changed files with 47 additions and 31 deletions
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51
gdb/symtab.c
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@@ -1280,37 +1280,44 @@ find_line_pc (symtab, line)
Returns 0 if could not find the specified line. */
int
find_line_pc_range (symtab, thisline, startptr, endptr)
struct symtab *symtab;
int thisline;
find_line_pc_range (sal, startptr, endptr)
struct symtab_and_line sal;
CORE_ADDR *startptr, *endptr;
{
struct linetable *l;
int ind;
int exact_match; /* did we get an exact linenumber match */
CORE_ADDR startaddr;
struct symtab_and_line found_sal;
if (symtab == 0)
startaddr = sal.pc;
if (startaddr == 0)
{
startaddr = find_line_pc (sal.symtab, sal.line);
}
if (startaddr == 0)
return 0;
if (find_line_symtab (symtab, thisline, &l, &ind, &exact_match))
{
*startptr = l->item[ind].pc;
/* If we have not seen an entry for the specified line,
assume that means the specified line has zero bytes. */
if (!exact_match || ind == l->nitems-1)
*endptr = *startptr;
else
/* Perhaps the following entry is for the following line.
It's worth a try. */
if (ind+1 < l->nitems
&& l->item[ind+1].line == thisline + 1)
*endptr = l->item[ind+1].pc;
else
*endptr = find_line_pc (symtab, thisline+1);
return 1;
}
/* This whole function is based on address. For example, if line 10 has
two parts, one from 0x100 to 0x200 and one from 0x300 to 0x400, then
"info line *0x123" should say the line goes from 0x100 to 0x200
and "info line *0x355" should say the line goes from 0x300 to 0x400.
This also insures that we never give a range like "starts at 0x134
and ends at 0x12c". */
return 0;
found_sal = find_pc_line (startaddr, 0);
if (found_sal.line != sal.line)
{
/* The specified line (sal) has zero bytes. */
*startptr = found_sal.pc;
*endptr = found_sal.pc;
}
else
{
*startptr = found_sal.pc;
*endptr = found_sal.end;
}
return 1;
}
/* Given a line table and a line number, return the index into the line