aboutsummaryrefslogtreecommitdiffstats
path: root/erts/emulator
diff options
context:
space:
mode:
authorSverker Eriksson <[email protected]>2011-12-01 20:20:09 +0100
committerSverker Eriksson <[email protected]>2012-02-17 10:58:47 +0100
commit99c0207298251d5557335864f15547ca07a7b050 (patch)
tree989be0778ead12f4c413e957d10b8bba22a49a0b /erts/emulator
parent02deff1b04a12be50e346c104e73a6841859d602 (diff)
downloadotp-99c0207298251d5557335864f15547ca07a7b050.tar.gz
otp-99c0207298251d5557335864f15547ca07a7b050.tar.bz2
otp-99c0207298251d5557335864f15547ca07a7b050.zip
hipe,erts: Add DEBUG support with MFA's in stack descriptors
Diffstat (limited to 'erts/emulator')
-rw-r--r--erts/emulator/hipe/hipe_stack.c10
-rw-r--r--erts/emulator/hipe/hipe_stack.h4
-rw-r--r--erts/emulator/hipe/hipe_x86_gc.h5
-rw-r--r--erts/emulator/hipe/hipe_x86_glue.h3
4 files changed, 21 insertions, 1 deletions
diff --git a/erts/emulator/hipe/hipe_stack.c b/erts/emulator/hipe/hipe_stack.c
index da462a64e1..53c316ba52 100644
--- a/erts/emulator/hipe/hipe_stack.c
+++ b/erts/emulator/hipe/hipe_stack.c
@@ -130,7 +130,7 @@ struct sdesc *hipe_decode_sdesc(Eterm arg)
struct sdesc *sdesc;
if (is_not_tuple(arg) ||
- (tuple_val(arg))[0] != make_arityval(5) ||
+ (tuple_val(arg))[0] != make_arityval(6) ||
term_to_Uint((tuple_val(arg))[1], &ra) == 0 ||
term_to_Uint((tuple_val(arg))[2], &exnra) == 0 ||
is_not_small((tuple_val(arg))[3]) ||
@@ -183,5 +183,13 @@ struct sdesc *hipe_decode_sdesc(Eterm arg)
off = unsigned_val(live[i]);
sdesc->livebits[off / 32] |= (1 << (off & 31));
}
+#ifdef DEBUG
+ {
+ Eterm mfa_tpl = tuple_val(arg)[6];
+ sdesc->dbg_M = tuple_val(mfa_tpl)[1];
+ sdesc->dbg_F = tuple_val(mfa_tpl)[2];
+ sdesc->dbg_A = tuple_val(mfa_tpl)[3];
+ }
+#endif
return sdesc;
}
diff --git a/erts/emulator/hipe/hipe_stack.h b/erts/emulator/hipe/hipe_stack.h
index 4c14b4a519..f2dab4fbcf 100644
--- a/erts/emulator/hipe/hipe_stack.h
+++ b/erts/emulator/hipe/hipe_stack.h
@@ -35,6 +35,10 @@ struct sdesc {
struct sdesc *next; /* hash collision chain */
} bucket;
unsigned int summary; /* frame size, exn handler presence flag, arity */
+#ifdef DEBUG
+ Eterm dbg_M, dbg_F;
+ unsigned dbg_A;
+#endif
unsigned int livebits[1]; /* size depends on arch & data in summary field */
};
diff --git a/erts/emulator/hipe/hipe_x86_gc.h b/erts/emulator/hipe/hipe_x86_gc.h
index e4607ad27d..aa4abb6f59 100644
--- a/erts/emulator/hipe/hipe_x86_gc.h
+++ b/erts/emulator/hipe/hipe_x86_gc.h
@@ -69,6 +69,11 @@ nstack_walk_init_sdesc(const Process *p, struct nstack_walk_state *state)
nstkarity = 0;
state->sdesc0[0].summary = (0 << 9) | (0 << 8) | nstkarity;
state->sdesc0[0].livebits[0] = 0;
+# ifdef DEBUG
+ state->sdesc0[0].dbg_M = 0;
+ state->sdesc0[0].dbg_F = am_init;
+ state->sdesc0[0].dbg_A = 0;
+# endif
/* XXX: this appears to prevent a gcc-4.1.1 bug on x86 */
__asm__ __volatile__("" : : "m"(*state) : "memory");
return &state->sdesc0[0];
diff --git a/erts/emulator/hipe/hipe_x86_glue.h b/erts/emulator/hipe/hipe_x86_glue.h
index b0db93267c..63ad250d60 100644
--- a/erts/emulator/hipe/hipe_x86_glue.h
+++ b/erts/emulator/hipe/hipe_x86_glue.h
@@ -62,6 +62,9 @@ static __inline__ void hipe_arch_glue_init(void)
.sdesc = {
.bucket = { .hvalue = (unsigned long)nbif_return },
.summary = (1<<8),
+ #ifdef DEBUG
+ .dbg_F = am_return,
+ #endif
},
};
hipe_init_sdesc_table(&nbif_return_sdesc.sdesc);