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authorBjörn Gustavsson <[email protected]>2011-02-16 06:54:15 +0100
committerBjörn Gustavsson <[email protected]>2011-08-16 08:58:50 +0200
commitbe04820c070d01d7565b936fa14efc2941055e0b (patch)
tree059e5070b9597c0320e4f9c58ddeb24c30aa9e66 /erts/emulator/hipe
parent87e639bef1cbe37f63fcd376ec17dc8fca77fe3f (diff)
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emulator: Add a fourth element in exception stacktraces
This commit is a preparation for introducing location information (filename/line number) in stacktraces in exceptions. Currently a stack trace looks like: [{Mod1,Function1,Arity1}, . . . {ModN,FunctionN,ArityN}] Add a forth element to each tuple that can be used indication the filename and line number of the source file: [{Mod1,Function1,Arity1,Location1}, . . . {ModN,FunctionN,ArityN,LocationN}] In this commit, the fourth element will just be an empty list, and we will change all code that look at or manipulate stacktraces.
Diffstat (limited to 'erts/emulator/hipe')
-rw-r--r--erts/emulator/hipe/hipe_mode_switch.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/erts/emulator/hipe/hipe_mode_switch.c b/erts/emulator/hipe/hipe_mode_switch.c
index e3e8367b62..0b35dbdf04 100644
--- a/erts/emulator/hipe/hipe_mode_switch.c
+++ b/erts/emulator/hipe/hipe_mode_switch.c
@@ -648,7 +648,7 @@ Eterm hipe_build_stacktrace(Process *p, struct StackTrace *s)
if (depth < 1)
return NIL;
- heap_size = 6 * depth; /* each [{M,F,A}|_] is 2+4 == 6 words */
+ heap_size = 7 * depth; /* each [{M,F,A,[]}|_] is 2+5 == 7 words */
hp = HAlloc(p, heap_size);
hp_end = hp + heap_size;
@@ -659,8 +659,8 @@ Eterm hipe_build_stacktrace(Process *p, struct StackTrace *s)
ra = (const void*)s->trace[i];
if (!hipe_find_mfa_from_ra(ra, &m, &f, &a))
continue;
- mfa = TUPLE3(hp, m, f, make_small(a));
- hp += 4;
+ mfa = TUPLE4(hp, m, f, make_small(a), NIL);
+ hp += 5;
next = CONS(hp, mfa, NIL);
*next_p = next;
next_p = &CDR(list_val(next));