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Diffstat (limited to 'erts/emulator/beam/beam_debug.c')
-rw-r--r--erts/emulator/beam/beam_debug.c17
1 files changed, 11 insertions, 6 deletions
diff --git a/erts/emulator/beam/beam_debug.c b/erts/emulator/beam/beam_debug.c
index 8041c92162..e69cbc3048 100644
--- a/erts/emulator/beam/beam_debug.c
+++ b/erts/emulator/beam/beam_debug.c
@@ -114,6 +114,10 @@ erts_debug_breakpoint_2(BIF_ALIST_2)
mfa[2] = signed_val(mfa[2]);
}
+ if (!erts_try_seize_code_write_permission(BIF_P)) {
+ ERTS_BIF_YIELD2(bif_export[BIF_erts_debug_breakpoint_2],
+ BIF_P, BIF_ARG_1, BIF_ARG_2);
+ }
erts_smp_proc_unlock(p, ERTS_PROC_LOCK_MAIN);
erts_smp_thr_progress_block();
@@ -125,7 +129,7 @@ erts_debug_breakpoint_2(BIF_ALIST_2)
erts_smp_thr_progress_unblock();
erts_smp_proc_lock(p, ERTS_PROC_LOCK_MAIN);
-
+ erts_release_code_write_permission();
return res;
error:
@@ -207,6 +211,7 @@ erts_debug_disassemble_1(BIF_ALIST_1)
BIF_RET(am_false);
}
} else if (is_tuple(addr)) {
+ ErtsCodeIndex code_ix;
Module* modp;
Eterm mod;
Eterm name;
@@ -225,14 +230,14 @@ erts_debug_disassemble_1(BIF_ALIST_1)
goto error;
}
arity = signed_val(tp[3]);
- modp = erts_get_module(mod);
+ code_ix = erts_active_code_ix();
+ modp = erts_get_module(mod, code_ix);
/*
* Try the export entry first to allow disassembly of special functions
* such as erts_debug:apply/4. Then search for it in the module.
*/
-
- if ((ep = erts_find_function(mod, name, arity)) != NULL) {
+ if ((ep = erts_find_function(mod, name, arity, code_ix)) != NULL) {
/* XXX: add "&& ep->address != ep->code+3" condition?
* Consider a traced function.
* Its ep will have ep->address == ep->code+3.
@@ -241,9 +246,9 @@ erts_debug_disassemble_1(BIF_ALIST_1)
* But this code_ptr will point to the start of the Export,
* not the function's func_info instruction. BOOM !?
*/
- code_ptr = ((BeamInstr *) ep->address) - 5;
+ code_ptr = ((BeamInstr *) ep->addressv[code_ix]) - 5;
funcinfo = code_ptr+2;
- } else if (modp == NULL || (code_base = modp->code) == NULL) {
+ } else if (modp == NULL || (code_base = modp->curr.code) == NULL) {
BIF_RET(am_undef);
} else {
n = code_base[MI_NUM_FUNCTIONS];