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subprof.c
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subprof.c
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/*
Copyright (C) 2001-2012, Parrot Foundation.
=head1 NAME
src/runcore/subprof.c - Parrot's subroutine-level profiler
=head1 DESCRIPTION
This compilation unit implements Parrot's subroutine-level profiler.
=head2 Functions
=over 4
=cut
*/
#include "parrot/runcore_api.h"
#include "parrot/runcore_subprof.h"
#include "parrot/oplib/ops.h"
#include "parrot/oplib/core_ops.h"
#include "parrot/dynext.h"
#include "subprof.str"
#include "pmc/pmc_sub.h"
#include "pmc/pmc_callcontext.h"
/* HEADERIZER HFILE: include/parrot/runcore_subprof.h */
/* HEADERIZER BEGIN: static */
/* Don't modify between HEADERIZER BEGIN / HEADERIZER END. Your changes will be lost. */
static void buildcallchain(PARROT_INTERP,
ARGIN(subprofiledata *spdata),
ARGIN_NULLOK(PMC *ctx),
ARGIN_NULLOK(PMC *subpmc))
__attribute__nonnull__(1)
__attribute__nonnull__(2);
static void createlines(PARROT_INTERP,
ARGIN(subprofiledata *spdata),
ARGIN(subprofile *sp))
__attribute__nonnull__(1)
__attribute__nonnull__(2)
__attribute__nonnull__(3);
static void dump_profile_data(PARROT_INTERP, ARGIN(subprofiledata *spdata))
__attribute__nonnull__(1)
__attribute__nonnull__(2);
PARROT_CAN_RETURN_NULL
static opcode_t * findlineannotations(PARROT_INTERP,
subprofiledata *spdata,
ARGIN(subprofile *sp),
ARGOUT(size_t *cntp))
__attribute__nonnull__(1)
__attribute__nonnull__(3)
__attribute__nonnull__(4)
FUNC_MODIFIES(*cntp);
static void finishcallchain(PARROT_INTERP, ARGIN(subprofiledata *spdata))
__attribute__nonnull__(2);
static void free_profile_data(PARROT_INTERP, ARGIN(subprofiledata *spdata))
__attribute__nonnull__(1)
__attribute__nonnull__(2);
static void free_subprofile(PARROT_INTERP, ARGIN(subprofile *sp))
__attribute__nonnull__(2);
PARROT_WARN_UNUSED_RESULT
PARROT_CANNOT_RETURN_NULL
static subprofiledata * get_subprofiledata(PARROT_INTERP,
ARGIN(Parrot_runcore_t *runcore),
int type)
__attribute__nonnull__(1)
__attribute__nonnull__(2);
PARROT_INLINE
static UHUGEINTVAL getticks(void);
static void Parrot_runcore_subprof_hll_init(PARROT_INTERP)
__attribute__nonnull__(1);
static void Parrot_runcore_subprof_ops_init(PARROT_INTERP)
__attribute__nonnull__(1);
static void Parrot_runcore_subprof_sub_init(PARROT_INTERP)
__attribute__nonnull__(1);
static void popcallchain(PARROT_INTERP, ARGIN(subprofiledata *spdata))
__attribute__nonnull__(2);
static void printspname(PARROT_INTERP,
const subprofiledata *spdata,
ARGIN(const subprofile *sp))
__attribute__nonnull__(1)
__attribute__nonnull__(3);
static void runops_subprof_destroy(PARROT_INTERP,
ARGIN(Parrot_runcore_t *runcore))
__attribute__nonnull__(1)
__attribute__nonnull__(2);
PARROT_WARN_UNUSED_RESULT
PARROT_CAN_RETURN_NULL
static opcode_t * runops_subprof_hll_core(PARROT_INTERP,
ARGIN(Parrot_runcore_t *runcore),
ARGIN(opcode_t *pc))
__attribute__nonnull__(1)
__attribute__nonnull__(2)
__attribute__nonnull__(3);
PARROT_WARN_UNUSED_RESULT
PARROT_CAN_RETURN_NULL
static opcode_t * runops_subprof_ops_core(PARROT_INTERP,
ARGIN(Parrot_runcore_t *runcore),
ARGIN(opcode_t *pc))
__attribute__nonnull__(1)
__attribute__nonnull__(2)
__attribute__nonnull__(3);
PARROT_WARN_UNUSED_RESULT
PARROT_CAN_RETURN_NULL
static opcode_t * runops_subprof_sub_core(PARROT_INTERP,
ARGIN(Parrot_runcore_t *runcore),
ARGIN(opcode_t *pc))
__attribute__nonnull__(1)
__attribute__nonnull__(2)
__attribute__nonnull__(3);
PARROT_CANNOT_RETURN_NULL
static INTVAL * sptodebug(PARROT_INTERP,
ARGMOD(subprofiledata *spdata),
ARGIN(const subprofile *sp))
__attribute__nonnull__(1)
__attribute__nonnull__(2)
__attribute__nonnull__(3)
FUNC_MODIFIES(*spdata);
PARROT_INLINE
PARROT_CANNOT_RETURN_NULL
static char * str2cs(PARROT_INTERP, ARGIN_NULLOK(const STRING *s))
__attribute__nonnull__(1);
PARROT_CANNOT_RETURN_NULL
static subprofile * sub2subprofile(PARROT_INTERP,
ARGIN(subprofiledata *spdata),
PMC *ctx,
ARGIN(PMC *subpmc))
__attribute__nonnull__(1)
__attribute__nonnull__(2)
__attribute__nonnull__(4);
static void sync_callchainchange(PARROT_INTERP,
ARGIN(subprofiledata *spdata),
ARGIN(PMC *ctx),
ARGIN_NULLOK(PMC *subpmc))
__attribute__nonnull__(1)
__attribute__nonnull__(2)
__attribute__nonnull__(3);
PARROT_CANNOT_RETURN_NULL
static lineinfo * sync_hll_linechange(PARROT_INTERP,
ARGIN(subprofiledata *spdata),
ARGIN_NULLOK(opcode_t *pc_op))
__attribute__nonnull__(2);
#define ASSERT_ARGS_buildcallchain __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(interp) \
, PARROT_ASSERT_ARG(spdata))
#define ASSERT_ARGS_createlines __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(interp) \
, PARROT_ASSERT_ARG(spdata) \
, PARROT_ASSERT_ARG(sp))
#define ASSERT_ARGS_dump_profile_data __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(interp) \
, PARROT_ASSERT_ARG(spdata))
#define ASSERT_ARGS_findlineannotations __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(interp) \
, PARROT_ASSERT_ARG(sp) \
, PARROT_ASSERT_ARG(cntp))
#define ASSERT_ARGS_finishcallchain __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(spdata))
#define ASSERT_ARGS_free_profile_data __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(interp) \
, PARROT_ASSERT_ARG(spdata))
#define ASSERT_ARGS_free_subprofile __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(sp))
#define ASSERT_ARGS_get_subprofiledata __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(interp) \
, PARROT_ASSERT_ARG(runcore))
#define ASSERT_ARGS_getticks __attribute__unused__ int _ASSERT_ARGS_CHECK = (0)
#define ASSERT_ARGS_Parrot_runcore_subprof_hll_init \
__attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(interp))
#define ASSERT_ARGS_Parrot_runcore_subprof_ops_init \
__attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(interp))
#define ASSERT_ARGS_Parrot_runcore_subprof_sub_init \
__attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(interp))
#define ASSERT_ARGS_popcallchain __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(spdata))
#define ASSERT_ARGS_printspname __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(interp) \
, PARROT_ASSERT_ARG(sp))
#define ASSERT_ARGS_runops_subprof_destroy __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(interp) \
, PARROT_ASSERT_ARG(runcore))
#define ASSERT_ARGS_runops_subprof_hll_core __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(interp) \
, PARROT_ASSERT_ARG(runcore) \
, PARROT_ASSERT_ARG(pc))
#define ASSERT_ARGS_runops_subprof_ops_core __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(interp) \
, PARROT_ASSERT_ARG(runcore) \
, PARROT_ASSERT_ARG(pc))
#define ASSERT_ARGS_runops_subprof_sub_core __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(interp) \
, PARROT_ASSERT_ARG(runcore) \
, PARROT_ASSERT_ARG(pc))
#define ASSERT_ARGS_sptodebug __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(interp) \
, PARROT_ASSERT_ARG(spdata) \
, PARROT_ASSERT_ARG(sp))
#define ASSERT_ARGS_str2cs __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(interp))
#define ASSERT_ARGS_sub2subprofile __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(interp) \
, PARROT_ASSERT_ARG(spdata) \
, PARROT_ASSERT_ARG(subpmc))
#define ASSERT_ARGS_sync_callchainchange __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(interp) \
, PARROT_ASSERT_ARG(spdata) \
, PARROT_ASSERT_ARG(ctx))
#define ASSERT_ARGS_sync_hll_linechange __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(spdata))
/* Don't modify between HEADERIZER BEGIN / HEADERIZER END. Your changes will be lost. */
/* HEADERIZER END: static */
/*
=item C<static INTVAL * sptodebug(PARROT_INTERP, subprofiledata *spdata, const
subprofile *sp)>
Unpacks the debug segment data into an array indexed by the opcode offset.
Hashes the result in spdata->seg2debug.
=cut
*/
PARROT_CANNOT_RETURN_NULL
static INTVAL *
sptodebug(PARROT_INTERP, ARGMOD(subprofiledata *spdata), ARGIN(const subprofile *sp))
{
ASSERT_ARGS(sptodebug)
INTVAL *xdebug;
size_t di, op;
opcode_t *base_pc, *debug_ops;
size_t code_size, debug_size;
if (!spdata->seg2debug)
spdata->seg2debug = Parrot_hash_new_pointer_hash(interp);
xdebug = (INTVAL *)Parrot_hash_get(interp, spdata->seg2debug, (void*)sp->subattrs->seg);
if (xdebug)
return xdebug;
base_pc = sp->subattrs->seg->base.data;
code_size = sp->subattrs->seg->base.size;
debug_ops = sp->subattrs->seg->debugs->base.data;
debug_size = sp->subattrs->seg->debugs->base.size;
xdebug = (INTVAL *)mem_sys_allocate_zeroed(code_size * sizeof (INTVAL));
for (di = 0, op = 0; op < code_size && di < debug_size; di++) {
const op_info_t * const op_info = sp->subattrs->seg->op_info_table[*base_pc];
opcode_t opsize = op_info->op_count;
ADD_OP_VAR_PART(interp, sp->subattrs->seg, base_pc, opsize);
base_pc += opsize;
xdebug[op++] = *debug_ops >= 0 ? *debug_ops : -1;
while (--opsize > 0) {
xdebug[op++] = -2;
}
debug_ops++;
}
while (op < code_size)
xdebug[op++] = -2;
Parrot_hash_put(interp, spdata->seg2debug, (void*)sp->subattrs->seg, (void*)xdebug);
return xdebug;
}
/*
=item C<static char * str2cs(PARROT_INTERP, const STRING *s)>
Convert a STRING* to a char*, or a STRINGNULL to "STRINGNULL".
=cut
*/
PARROT_INLINE
PARROT_CANNOT_RETURN_NULL
static char *
str2cs(PARROT_INTERP, ARGIN_NULLOK(const STRING *s))
{
ASSERT_ARGS(str2cs)
if (s == STRINGNULL)
return mem_sys_strdup("STRNULL");
return Parrot_str_to_cstring(interp, s);
}
/*
=item C<static opcode_t * findlineannotations(PARROT_INTERP, subprofiledata
*spdata, subprofile *sp, size_t *cntp)>
Return a pointer to the first line annotation of the sub and the number
of line annotations for this sub.
The C<spdata> argument is currently unused.
=cut
*/
PARROT_CAN_RETURN_NULL
static opcode_t *
findlineannotations(PARROT_INTERP,
SHIM(subprofiledata *spdata),
ARGIN(subprofile *sp),
ARGOUT(size_t *cntp))
{
ASSERT_ARGS(findlineannotations)
int i;
size_t j,
cnt,
first;
PackFile_Annotations *ann = sp->subattrs->seg->annotations;
PackFile_Annotations_Key *key;
STRING *line_str;
if (!ann)
return NULL;
line_str = Parrot_str_new_constant(interp, "line");
/* search for the first line annotation in our sub */
for (i = 0; i < ann->num_keys; i++) {
STRING * const test_key = ann->code->const_table->str.constants[ann->keys[i].name];
if (STRING_equal(interp, test_key, line_str))
break;
}
if (i == ann->num_keys)
return NULL; /* no annotations with this key */
cnt = 0;
first = 0;
key = ann->keys + i;
for (j = key->start; j < key->start + key->len; j++) {
if ((size_t)ann->base.data[j * 2 + ANN_ENTRY_OFF] < sp->subattrs->start_offs)
continue;
if ((size_t)ann->base.data[j * 2 + ANN_ENTRY_OFF] >= sp->subattrs->end_offs)
break;
if (!cnt++) {
first = j;
}
}
*cntp = cnt;
return cnt ? ann->base.data + first * 2 : NULL;
}
/*
=item C<static void createlines(PARROT_INTERP, subprofiledata *spdata,
subprofile *sp)>
Create the lines array from the annotations/debug segment. Every line
describes a opcode segment.
Also sets sp->srcfile and sp->srcline.
=cut
*/
static void
createlines(PARROT_INTERP, ARGIN(subprofiledata *spdata), ARGIN(subprofile *sp))
{
ASSERT_ARGS(createlines)
if (spdata->profile_type == SUBPROF_TYPE_OPS) {
int i, lasti;
INTVAL *xdebug = sptodebug(interp, spdata, sp);
sp->nlines = sp->subattrs->end_offs - sp->subattrs->start_offs;
sp->lines = (lineinfo *) mem_sys_allocate_zeroed(
((sp->nlines ? sp->nlines : 1) + 1) * sizeof (lineinfo));
sp->lines[0].op_offs = sp->subattrs->start_offs; /* just in case */
for (i = lasti = 0; i < sp->nlines; i++) {
INTVAL line = xdebug[sp->subattrs->start_offs + i];
if (line != -2) {
sp->lines[i].op_offs = sp->subattrs->start_offs + i;
sp->lines[lasti + 1].op_offs = sp->subattrs->start_offs + i;
lasti = i;
}
}
{
STRING *filename = Parrot_sub_get_filename_from_pc(interp,
sp->subpmc,
sp->code_ops
+ sp->subattrs->start_offs);
sp->lines[lasti + 1].op_offs = sp->subattrs->end_offs;
sp->srcline = xdebug[sp->subattrs->start_offs];
sp->srcfile = str2cs(interp, filename);
}
return;
}
if (sp->subattrs->seg->annotations) {
PackFile_Annotations *ann = sp->subattrs->seg->annotations;
size_t cnt = 0;
opcode_t *anndata = findlineannotations(interp, spdata, sp, &cnt);
if (anndata) {
PMC *srcfilepmc;
size_t i, j;
if (spdata->profile_type == SUBPROF_TYPE_SUB) {
/* we just need the first annotation for sub profiling */
cnt = 1;
}
/* set srcfile and srcline */
sp->srcline = anndata[ANN_ENTRY_VAL];
/* + 1 needed because Annotations_lookup looks up the annotation _before_ the pc */
srcfilepmc = PackFile_Annotations_lookup(interp,
ann,
anndata[ANN_ENTRY_OFF] + 1,
Parrot_str_new_constant(interp, "file"));
if (PMC_IS_NULL(srcfilepmc))
sp->srcfile = mem_sys_strdup("???");
else
sp->srcfile = str2cs(interp, VTABLE_get_string(interp, srcfilepmc));
sp->lines = (lineinfo *) mem_sys_allocate_zeroed((cnt + 1) * sizeof (lineinfo));
for (i = j = 0; i < cnt; i++) {
if (j && sp->lines[j - 1].op_offs == (size_t)anndata[i * 2 + ANN_ENTRY_OFF]) {
/* no empty segments, please */
continue;
}
sp->lines[j++].op_offs = anndata[i * 2 + ANN_ENTRY_OFF];
}
sp->lines[0].op_offs = sp->subattrs->start_offs; /* workaround */
sp->lines[j].op_offs = sp->subattrs->end_offs;
if (j > 1 && sp->lines[j - 1].op_offs == sp->subattrs->end_offs)
/* no empty segments, please */
j--;
sp->nlines = j;
}
}
if (!sp->nlines) {
/* no annotations, fall back to debug segment */
STRING *filename = Parrot_sub_get_filename_from_pc(interp,
sp->subpmc,
sp->code_ops
+ sp->subattrs->start_offs);
sp->srcline = Parrot_sub_get_line_from_pc(interp,
sp->subpmc,
sp->code_ops + sp->subattrs->start_offs);
sp->srcfile = str2cs(interp, filename);
sp->lines = (lineinfo *) mem_sys_allocate_zeroed((1 + 1) * sizeof (lineinfo));
sp->lines[0].op_offs = sp->subattrs->start_offs;
sp->lines[1].op_offs = sp->subattrs->end_offs;
sp->nlines = 1;
}
}
/*
=item C<static subprofile * sub2subprofile(PARROT_INTERP, subprofiledata
*spdata, PMC *ctx, PMC *subpmc)>
...
The C<ctx> argument is currently unused.
=cut
*/
PARROT_CANNOT_RETURN_NULL
static subprofile *
sub2subprofile(PARROT_INTERP, ARGIN(subprofiledata *spdata), SHIM(PMC *ctx), ARGIN(PMC *subpmc))
{
ASSERT_ARGS(sub2subprofile)
subprofile *sp;
Parrot_Sub_attributes *subattrs;
PMC_get_sub(interp, subpmc, subattrs);
if (!spdata->sphash)
spdata->sphash = Parrot_hash_new_pointer_hash(interp);
sp = (subprofile *) Parrot_hash_get(interp,
spdata->sphash,
(void *) (subattrs->seg->base.data
+ subattrs->start_offs));
if (!sp) {
sp = (subprofile *) mem_sys_allocate_zeroed(sizeof (subprofile));
sp->subattrs = subattrs;
sp->subpmc = subpmc;
sp->code_ops = sp->subattrs->seg->base.data;
createlines(interp, spdata, sp);
Parrot_hash_put(interp,
spdata->sphash,
(void *) (subattrs->seg->base.data + subattrs->start_offs),
(void *) sp);
VTABLE_push_pmc(interp, spdata->markpmcs, subpmc);
}
return sp;
}
/*
=item C<static void popcallchain(PARROT_INTERP, subprofiledata *spdata)>
...
=cut
*/
static void
popcallchain(SHIM_INTERP, ARGIN(subprofiledata *spdata))
{
ASSERT_ARGS(popcallchain)
subprofile * const sp = spdata->cursp;
subprofile * const csp = sp->caller;
if (sp->callerci) {
sp->callerci->ops += sp->callerops;
sp->callerci->ticks += sp->callerticks;
}
if (csp) {
csp->callerops += sp->callerops;
csp->callerticks += sp->callerticks;
}
sp->caller = NULL;
sp->callerci = NULL;
sp->ctx = NULL;
sp->callerops = 0;
sp->callerticks = 0;
spdata->cursubpmc = csp ? csp->subpmc : NULL;
spdata->curctx = csp ? csp->ctx : NULL;
spdata->cursp = csp;
}
/*
=item C<static void finishcallchain(PARROT_INTERP, subprofiledata *spdata)>
Propagate timing information up the call chain, clearing out old frames during
the process.
=cut
*/
static void
finishcallchain(SHIM_INTERP, ARGIN(subprofiledata *spdata))
{
ASSERT_ARGS(finishcallchain)
subprofile *sp, *csp;
/* finish all calls */
for (sp = spdata->cursp; sp; sp = csp) {
csp = sp->caller;
if (sp->callerci) {
sp->callerci->ops += sp->callerops;
sp->callerci->ticks += sp->callerticks;
}
if (csp) {
csp->callerops += sp->callerops;
csp->callerticks += sp->callerticks;
}
sp->caller = NULL;
sp->callerci = NULL;
sp->ctx = NULL;
sp->callerops = 0;
sp->callerticks = 0;
}
spdata->cursp = NULL;
spdata->curctx = NULL;
spdata->cursubpmc = NULL;
}
/*
=item C<static void buildcallchain(PARROT_INTERP, subprofiledata *spdata, PMC
*ctx, PMC *subpmc)>
...
=cut
*/
static void
buildcallchain(PARROT_INTERP,
ARGIN(subprofiledata *spdata),
ARGIN_NULLOK(PMC *ctx),
ARGIN_NULLOK(PMC *subpmc))
{
ASSERT_ARGS(buildcallchain)
PMC *cctx;
subprofile *sp;
lineinfo *li;
cctx = Parrot_pcc_get_caller_ctx(interp, ctx);
if (cctx) {
PMC * const csubpmc = Parrot_pcc_get_sub(interp, cctx);
if (spdata->curctx != cctx || spdata->cursubpmc != csubpmc)
buildcallchain(interp, spdata, cctx, csubpmc);
}
if (PMC_IS_NULL(subpmc))
return;
/* find the correct subprofile */
sp = sub2subprofile(interp, spdata, ctx, subpmc);
while (sp->ctx) {
/* recursion! */
if (!sp->rnext) {
subprofile *rsp;
rsp = (subprofile *)mem_sys_allocate_zeroed(sizeof (subprofile));
rsp->subattrs = sp->subattrs;
rsp->subpmc = sp->subpmc;
rsp->code_ops = sp->code_ops;
rsp->rcnt = sp->rcnt + 1;
rsp->srcline = sp->srcline;
rsp->srcfile = mem_sys_strdup(sp->srcfile);
sp->rnext = rsp;
if (sp->nlines) {
int i;
rsp->lines = (lineinfo *)mem_sys_allocate_zeroed(
(sp->nlines + 1) * sizeof (lineinfo));
rsp->nlines = sp->nlines;
for (i = 0; i < sp->nlines + 1; i++)
rsp->lines[i].op_offs = sp->lines[i].op_offs;
}
}
sp = sp->rnext;
}
sp->ctx = ctx;
sp->caller = spdata->cursp;
if (sp->caller) {
subprofile * const csp = sp->caller;
/* get caller pc */
opcode_t * const cpc_op = Parrot_pcc_get_pc(interp, csp->ctx);
size_t cpc = cpc_op ? cpc_op - csp->code_ops : 0;
if (cpc > csp->subattrs->start_offs)
cpc--;
/* convert cpc into line */
if (spdata->profile_type != SUBPROF_TYPE_OPS) {
int i;
/* might do a binary seach instead */
for (i = 0, li = csp->lines; i < csp->nlines; i++, li++)
if (cpc >= li->op_offs && cpc < li[1].op_offs)
break;
if (i >= csp->nlines)
li = csp->lines - 1; /* just in case */
}
else {
li = csp->lines + (cpc - csp->subattrs->start_offs);
while (li > csp->lines && (li->op_offs == 0 || li->op_offs > cpc))
li--;
}
}
else {
li = &spdata->rootline;
}
if (li) {
/* add caller to line */
callinfo *ci;
if (!li->calls) {
li->calls = (callinfo *) mem_sys_allocate((1 + 8) * sizeof (*ci));
ci = li->calls;
ci->callee = NULL;
}
else {
for (ci = li->calls; ci->callee; ci++)
if (ci->callee == sp)
break;
if (!ci->callee) {
int ncalls = ci - li->calls;
if ((ncalls & 7) == 0) {
li->calls = (callinfo *) mem_sys_realloc(
li->calls, (ncalls + (1 + 8)) * sizeof (*ci));
ci = li->calls + ncalls;
}
}
}
if (!ci->callee) {
memset(ci, 0, sizeof (*ci));
ci->callee = sp;
ci[1].callee = NULL;
}
sp->callerci = ci;
}
else {
sp->callerci = NULL;
}
spdata->cursp = sp;
spdata->curctx = ctx;
spdata->cursubpmc = subpmc;
}
/*
=item C<static void printspname(PARROT_INTERP, const subprofiledata *spdata,
const subprofile *sp)>
Prints the name of the subprofile given in C<sp>.
The C<spdata> argument is currently unused.
=cut
*/
static void
printspname(PARROT_INTERP, SHIM(const subprofiledata *spdata), ARGIN(const subprofile *sp))
{
ASSERT_ARGS(printspname)
char * const cname = str2cs(interp, sp->subattrs->name);
fprintf(stderr, "%p:%s", sp, cname);
if (sp->rcnt)
fprintf(stderr, "'%d", sp->rcnt);
mem_sys_free(cname);
}
/*
=item C<static void dump_profile_data(PARROT_INTERP, subprofiledata *spdata)>
After the program has completed, print the resulting callgrind-compatible
profile to stderr.
=cut
*/
static void
dump_profile_data(PARROT_INTERP, ARGIN(subprofiledata *spdata))
{
ASSERT_ARGS(dump_profile_data)
unsigned int totalops = 0;
UHUGEINTVAL totalticks = 0;
if (!spdata->profile_type)
return;
finishcallchain(interp, spdata); /* just in case */
if (!spdata->sphash)
spdata->sphash = Parrot_hash_create(interp, enum_type_ptr, Hash_key_type_PMC_ptr);
parrot_hash_iterate(spdata->sphash,
subprofile *hsp = (subprofile*)_bucket->value;
subprofile *sp;
for (sp = hsp; sp; sp = sp->rnext) {
int j;
for (j = 0; j < sp->nlines; j++) {
totalops += sp->lines[j].ops;
totalticks += sp->lines[j].ticks;
}
});
fprintf(stderr, "events: ops ticks\n");
fprintf(stderr, "summary: %d %lld\n", totalops, totalticks);
parrot_hash_iterate(spdata->sphash,
subprofile *hsp = (subprofile*)_bucket->value;
subprofile *sp;
for (sp = hsp; sp; sp = sp->rnext) {
opcode_t *anndata = NULL;
INTVAL *xdebug = NULL;
size_t cnt = 0;
int i;
if (spdata->profile_type != SUBPROF_TYPE_OPS)
anndata = findlineannotations(interp, spdata, sp, &cnt);
else
xdebug = sptodebug(interp, spdata, sp);
fprintf(stderr, "\n");
fprintf(stderr, "fl=%s\n", sp->srcfile);
fprintf(stderr, "fn=");
printspname(interp, spdata, sp);
fprintf(stderr, "\n");
for (i = 0; i < sp->nlines; i++) {
lineinfo *li = sp->lines + i;
callinfo *ci;
INTVAL srcline = -1;
if (!li->ops && !li->ticks && !li->calls)
continue;
if (i == 0) {
/* easy for the first annotation */
srcline = sp->srcline;
}
else {
if (spdata->profile_type == SUBPROF_TYPE_OPS) {
srcline = xdebug[sp->subattrs->start_offs + i];
}
else if (anndata) {
while (cnt > 1 && (size_t) anndata[ANN_ENTRY_OFF + 2] <= li->op_offs) {
anndata += 2;
cnt--;
}
srcline = anndata[ANN_ENTRY_VAL];
anndata += 2;
cnt--;
}
}
if (li->ops || li->ticks)
fprintf(stderr,
"%d %u %llu\n",
(int) srcline,
(unsigned int) li->ops,
(unsigned long long) li->ticks);
for (ci = li->calls; ci && ci->callee; ci++) {
subprofile *csp = ci->callee;
fprintf(stderr, "cfl=%s\n", csp->srcfile);
fprintf(stderr, "cfn=");
printspname(interp, spdata, csp);
fprintf(stderr, "\n");
fprintf(stderr, "calls=%u %d\n", (unsigned int) ci->count, (int) csp->srcline);
fprintf(stderr,
"%d %u %llu\n",
(int) srcline,
(unsigned int) ci->ops,
(unsigned long long) ci->ticks);
}
}
});
/* also dump profiling root if there are more than one callees */
if (spdata->rootline.calls
&& spdata->rootline.calls[0].callee
&& spdata->rootline.calls[1].callee) {
lineinfo *li = &spdata->rootline;
callinfo *ci;
fprintf(stderr, "\n");
fprintf(stderr, "fl=\n");
fprintf(stderr, "fn=__profiling_root__\n");
for (ci = li->calls; ci && ci->callee; ci++) {
subprofile *csp = ci->callee;
fprintf(stderr, "cfl=%s\n", csp->srcfile);
fprintf(stderr, "cfn=");
printspname(interp, spdata, csp);
fprintf(stderr, "\n");
fprintf(stderr, "calls=%u %d\n", (unsigned int) ci->count, (int) csp->srcline);
fprintf(stderr,
"%d %u %llu\n",
0,
(unsigned int) ci->ops,
(unsigned long long) ci->ticks);
}
}
fprintf(stderr, "\ntotals: %d %lld\n", totalops, totalticks);
}
/*
=item C<static void free_subprofile(PARROT_INTERP, subprofile *sp)>
free memory we allocated for this subprofile
=cut
*/
static void
free_subprofile(SHIM_INTERP, ARGIN(subprofile *sp))
{
ASSERT_ARGS(free_subprofile)
if (sp->srcfile)
mem_sys_free(sp->srcfile);
if (sp->lines) {
int i;
for (i = 0; i < sp->nlines; i++) {
lineinfo *li = sp->lines + i;
if (li->calls)
mem_sys_free(li->calls);
}
mem_sys_free(sp->lines);
}
mem_sys_free(sp);
}
/*
=item C<static void free_profile_data(PARROT_INTERP, subprofiledata *spdata)>
Free all profile data that's been accumulated.
=cut
*/
static void
free_profile_data(PARROT_INTERP, ARGIN(subprofiledata *spdata))
{
ASSERT_ARGS(free_profile_data)