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authorBjörn Gustavsson <[email protected]>2018-01-22 14:21:59 +0100
committerBjörn Gustavsson <[email protected]>2018-01-22 14:21:59 +0100
commitb7ff9c0d76372f16d14ecaac04c6fbbbadaf9435 (patch)
tree88aa04eba3673947df2394f8b212a0ae457cbb64 /erts/emulator/beam
parentb04e955ea3eaed13c709546b57e74e26d868323a (diff)
parent825edd6dbaf1987cee2e6571765376ff3e8c0180 (diff)
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Merge branch 'bjorn/erts/beam_debug'
* bjorn/erts/beam_debug: beam_debug: Fix printing of f operand for catch_yf beam_debug: Print out strings for bs_match_string/bs_put_string beam_debug: Print the MFA in the i_make_fun/2 instruction
Diffstat (limited to 'erts/emulator/beam')
-rw-r--r--erts/emulator/beam/beam_debug.c73
1 files changed, 61 insertions, 12 deletions
diff --git a/erts/emulator/beam/beam_debug.c b/erts/emulator/beam/beam_debug.c
index 509aa2a84f..8f02d509a9 100644
--- a/erts/emulator/beam/beam_debug.c
+++ b/erts/emulator/beam/beam_debug.c
@@ -40,6 +40,7 @@
#include "erl_binary.h"
#include "erl_thr_progress.h"
#include "erl_nfunc_sched.h"
+#include "beam_catches.h"
#ifdef ARCH_64
# define HEXF "%016bpX"
@@ -55,6 +56,7 @@ static int print_op(fmtfn_t to, void *to_arg, int op, int size, BeamInstr* addr)
static void print_bif_name(fmtfn_t to, void* to_arg, BifFunction bif);
static BeamInstr* f_to_addr(BeamInstr* base, int op, BeamInstr* ap);
static BeamInstr* f_to_addr_packed(BeamInstr* base, int op, Sint32* ap);
+static void print_byte_string(fmtfn_t to, void *to_arg, byte* str, Uint bytes);
BIF_RETTYPE
erts_debug_same_2(BIF_ALIST_2)
@@ -396,6 +398,7 @@ print_op(fmtfn_t to, void *to_arg, int op, int size, BeamInstr* addr)
BeamInstr args[8]; /* Arguments for this instruction. */
BeamInstr* ap; /* Pointer to arguments. */
BeamInstr* unpacked; /* Unpacked arguments */
+ BeamInstr* first_arg; /* First argument */
start_prog = opc[op].pack;
@@ -480,6 +483,8 @@ print_op(fmtfn_t to, void *to_arg, int op, int size, BeamInstr* addr)
ap = args;
}
+ first_arg = ap;
+
/*
* Print the name and all operands of the instructions.
*/
@@ -570,24 +575,60 @@ print_op(fmtfn_t to, void *to_arg, int op, int size, BeamInstr* addr)
}
break;
}
+ case op_i_make_fun_Wt:
+ if (*sign == 'W') {
+ ErlFunEntry* fe = (ErlFunEntry *) *ap;
+ ErtsCodeMFA* cmfa = find_function_from_pc(fe->address);
+ erts_print(to, to_arg, "%T:%T/%bpu", cmfa->module,
+ cmfa->function, cmfa->arity);
+ } else {
+ erts_print(to, to_arg, "%d", *ap);
+ }
+ break;
+ case op_i_bs_match_string_xfWW:
+ if (ap - first_arg < 3) {
+ erts_print(to, to_arg, "%d", *ap);
+ } else {
+ Uint bits = ap[-1];
+ Uint bytes = (bits+7)/8;
+ byte* str = (byte *) *ap;
+ print_byte_string(to, to_arg, str, bytes);
+ }
+ break;
+ case op_bs_put_string_WW:
+ if (ap - first_arg == 0) {
+ erts_print(to, to_arg, "%d", *ap);
+ } else {
+ Uint bytes = ap[-1];
+ byte* str = (byte *) ap[0];
+ print_byte_string(to, to_arg, str, bytes);
+ }
+ break;
default:
erts_print(to, to_arg, "%d", *ap);
}
ap++;
break;
case 'f': /* Destination label */
- {
- BeamInstr* target = f_to_addr(addr, op, ap);
- ErtsCodeMFA* cmfa = find_function_from_pc(target);
- if (!cmfa || erts_codemfa_to_code(cmfa) != target) {
- erts_print(to, to_arg, "f(" HEXF ")", target);
- } else {
- erts_print(to, to_arg, "%T:%T/%bpu", cmfa->module,
- cmfa->function, cmfa->arity);
- }
- ap++;
- }
- break;
+ switch (op) {
+ case op_catch_yf:
+ erts_print(to, to_arg, "f(" HEXF ")", catch_pc((BeamInstr)*ap));
+ break;
+ default:
+ {
+ BeamInstr* target = f_to_addr(addr, op, ap);
+ ErtsCodeMFA* cmfa = find_function_from_pc(target);
+ if (!cmfa || erts_codemfa_to_code(cmfa) != target) {
+ erts_print(to, to_arg, "f(" HEXF ")", target);
+ } else {
+ erts_print(to, to_arg, "%T:%T/%bpu", cmfa->module,
+ cmfa->function, cmfa->arity);
+ }
+ ap++;
+ }
+ break;
+ }
+ break;
case 'p': /* Pointer (to label) */
{
BeamInstr* target = f_to_addr(addr, op, ap);
@@ -848,6 +889,14 @@ static BeamInstr* f_to_addr_packed(BeamInstr* base, int op, Sint32* ap)
return base - 1 + opc[op].adjust + *ap;
}
+static void print_byte_string(fmtfn_t to, void *to_arg, byte* str, Uint bytes)
+{
+ Uint i;
+
+ for (i = 0; i < bytes; i++) {
+ erts_print(to, to_arg, "%02X", str[i]);
+ }
+}
/*
* Dirty BIF testing.