pool/valgrind
SHA256
3
0
Fork 1
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
160a5c1b6c
valgrind/jit-runtime-support.diff

228 lines
5.9 KiB
Diff
Raw Blame History

--- coregrind/m_debuginfo/debuginfo.c
+++ coregrind/m_debuginfo/debuginfo.c
@@ -33,7 +33,7 @@
This module was also extensively hacked on by Jeremy Fitzhardinge
and Tom Hughes.
*/
-
+#include <stdio.h>
#include "pub_core_basics.h"
#include "pub_core_threadstate.h"
#include "pub_core_debuginfo.h" /* self */
@@ -376,6 +376,7 @@
}
}
not_found:
+
*psi = NULL;
}
@@ -449,6 +450,120 @@
return True;
}
+typedef struct {
+ char *name;
+ Addr start, end;
+} JitEntry;
+
+static JitEntry *jit_entries;
+static int jit_entries_size;
+static int jit_entry_count;
+
+#define START_SIZE 128
+#define INCREMENT 64
+
+void VG_(register_jited_code) ( Char *name, Addr start, SizeT len)
+{
+ int l, u, mid, slot, j;
+ JitEntry *e = NULL;
+
+ if (jit_entry_count + 1 >= jit_entries_size){
+ if (jit_entries == NULL){
+ jit_entries = VG_(arena_calloc)(VG_AR_SYMTAB, START_SIZE, sizeof(JitEntry));
+ jit_entries_size = START_SIZE;
+ } else {
+ jit_entries = VG_(arena_realloc)(VG_AR_SYMTAB, jit_entries, (jit_entries_size + INCREMENT) * sizeof(JitEntry));
+ jit_entries_size += INCREMENT;
+ }
+ }
+ l = 0;
+ u = jit_entry_count;
+ while (l < u){
+ mid = (l + u) / 2;
+ e = &jit_entries [mid];
+ if (e->start < start){
+ l = mid + 1;
+ } else if (e->start > start){
+ u = mid;
+ } else
+ break;
+ }
+ if (e == NULL){
+ if (jit_entry_count != 0){
+ // this would be an error;
+ }
+ slot = 0;
+ } else if (e->start < start)
+ slot = mid + 1;
+ else
+ slot = mid;
+
+ if (e != NULL){
+ for (j = jit_entry_count; j > mid+1; j--)
+ jit_entries [j] = jit_entries [j-1];
+ }
+
+ jit_entries [slot].name = VG_(strdup)(name);
+ jit_entries [slot].start = start;
+ jit_entries [slot].end = start + len;
+ jit_entry_count++;
+}
+
+void VG_(unregister_jited_code) ( Addr start )
+{
+ int l, u, mid;
+ JitEntry *e = NULL;
+
+ l = 0;
+ u = jit_entry_count;
+ while (l < u){
+ mid = (l + u) / 2;
+ e = &jit_entries [mid];
+
+ if (e->start < start){
+ l = mid + 1;
+ } else if (e->start > start){
+ u = mid;
+ } else {
+ break;
+ }
+ }
+ if (e != NULL && start == e->start){
+ int j;
+
+ VG_(free) (e->name);
+ for (j = mid + 1; j < jit_entry_count; j++)
+ jit_entries [j-1] = jit_entries [j];
+ }
+}
+
+static Bool
+jit_lookup ( Addr pc, Char* buf, Int nbuf )
+{
+ int l, u, mid;
+ JitEntry *e = NULL;
+
+ l = 0;
+ u = jit_entry_count;
+ while (l < u){
+ mid = (l + u) / 2;
+ e = &jit_entries [mid];
+
+ if (e->end < pc){
+ l = mid + 1;
+ } else if (e->start > pc){
+ u = mid;
+ } else {
+ break;
+ }
+ }
+ if (e != NULL && pc >= e->start && pc < e->end){
+ VG_(strncpy_safely) (buf, e->name, nbuf);
+ return True;
+ }
+ return False;
+}
+
/* ppc64-linux only: find the TOC pointer (R2 value) that should be in
force at the entry point address of the function containing
guest_code_addr. Returns 0 if not known. */
@@ -708,6 +823,10 @@
buf_dirname, BUF_LEN, &know_dirinfo,
&lineno
);
+ if (!know_fnname){
+ know_fnname = jit_lookup (eip, buf_fn, BUF_LEN);
+ }
+
if (VG_(clo_xml)) {
Bool human_readable = True;
--- coregrind/m_scheduler/scheduler.c 2007-01-08 02:43:14.000000000 -0500
+++ coregrind/m_scheduler/scheduler.c 2007-07-04 02:42:04.000000000 -0400
@@ -81,6 +81,7 @@
#include "pub_core_tooliface.h"
#include "pub_core_translate.h" // For VG_(translate)()
#include "pub_core_transtab.h"
+#include "pub_core_debuginfo.h"
#include "vki_unistd.h"
#include "priv_sema.h"
@@ -1256,6 +1257,16 @@
SET_CLREQ_RETVAL( tid, VG_(get_n_errs_found)() );
break;
+ case VG_USERREQ__JIT_REGISTER_MAP:
+ VG_(register_jited_code) ((char *) arg [1], arg[2], arg[3]);
+ SET_CLREQ_RETVAL( tid, 0 ); /* return value is meaningless */
+ break;
+
+ case VG_USERREQ__JIT_UNREGISTER_MAP:
+ VG_(unregister_jited_code) (arg[1]);
+ SET_CLREQ_RETVAL( tid, 0 ); /* return value is meaningless */
+ break;
+
default:
if (os_client_request(tid, arg)) {
// do nothing, os_client_request() handled it
--- coregrind/pub_core_debuginfo.h 2007-01-08 02:43:15.000000000 -0500
+++ coregrind/pub_core_debuginfo.h 2007-07-04 02:39:22.000000000 -0400
@@ -54,6 +54,9 @@
extern Bool VG_(get_fnname_nodemangle)( Addr a,
Char* fnname, Int n_fnname );
+extern void VG_(register_jited_code) ( Char *name, Addr start, SizeT len );
+extern void VG_(unregister_jited_code) ( Addr start );
+
/* Use DWARF2/3 CFA information to do one step of stack unwinding. */
extern Bool VG_(use_CF_info) ( /*MOD*/Addr* ipP,
/*MOD*/Addr* spP,
--- include/valgrind.h 2007-01-08 02:43:09.000000000 -0500
+++ include/valgrind.h 2007-07-04 02:41:38.000000000 -0400
@@ -2296,7 +2296,12 @@
/* Stack support. */
VG_USERREQ__STACK_REGISTER = 0x1501,
VG_USERREQ__STACK_DEREGISTER = 0x1502,
- VG_USERREQ__STACK_CHANGE = 0x1503
+ VG_USERREQ__STACK_CHANGE = 0x1503,
+
+ /* JIT suppor */
+ VG_USERREQ__JIT_REGISTER_MAP = 0x1601,
+ VG_USERREQ__JIT_UNREGISTER_MAP = 0x1602
+
} Vg_ClientRequest;
#if !defined(__GNUC__)
@@ -2530,7 +2535,20 @@
id, start, end, 0, 0); \
}
+#define VALGRIND_JIT_REGISTER_MAP(name, start, end) \
+ {unsigned int _qzz_res; \
+ VALGRIND_DO_CLIENT_REQUEST(_qzz_res, 0, \
+ VG_USERREQ__JIT_REGISTER_MAP, \
+ name, start, end, 0, 0); \
+ }
+#define VALGRIND_JIT_UNREGISTER_MAP(name, start) \
+ {unsigned int _qzz_res; \
+ VALGRIND_DO_CLIENT_REQUEST(_qzz_res, 0, \
+ VG_USERREQ__JIT_REGISTER_MAP, \
+ start, 0, 0, 0, 0); \
+ }
+
#undef ARCH_x86
#undef ARCH_amd64
#undef ARCH_ppc32
Reference in New Issue View Git Blame Copy Permalink