Hi all,
the attached patch removes all references to xmalloc-trace and sbrk.
The former is very rarely used, valgrind is preferred to trace allocations.
The latter is basically useless to detect memory usage on modern OSes which
use other means than brk(2) to obtain memory pages for the heap; it is
actually deprecated on some OSes such as Darwin.
Farm-build-tested.
--
Francesco
# Bazaar merge directive format 2 (Bazaar 0.90)
# revision_id: kin...@squid-cache.org-20140316124459-igg4zpgg98ppddpz
# target_branch: ../trunk
# testament_sha1: 2d2e28d22c9b8f832ccb6c128be66bfd754be08a
# timestamp: 2014-03-16 19:16:45 +0100
# base_revision_id: squ...@treenet.co.nz-20140316035245-\
# 4z0y12zr92i337y6
#
# Begin patch
=== modified file 'compat/xalloc.cc'
--- compat/xalloc.cc 2012-07-02 12:14:07 +0000
+++ compat/xalloc.cc 2014-03-16 12:44:59 +0000
@@ -92,9 +92,6 @@
#if XMALLOC_STATISTICS
malloc_stat(sz * n);
#endif
-#if XMALLOC_TRACE
- xmalloc_show_trace(p, 1);
-#endif
#if MEM_GEN_TRACE
if (tracefp)
fprintf(tracefp, "c:%u:%u:%p\n", (unsigned int) n, (unsigned int) sz, p);
@@ -133,9 +130,6 @@
#if XMALLOC_STATISTICS
malloc_stat(sz);
#endif
-#if XMALLOC_TRACE
- xmalloc_show_trace(p, 1);
-#endif
#if MEM_GEN_TRACE
if (tracefp)
fprintf(tracefp, "m:%d:%p\n", sz, p);
@@ -149,9 +143,6 @@
xrealloc(void *s, size_t sz)
{
PROF_start(xrealloc);
-#if XMALLOC_TRACE
- xmalloc_show_trace(s, -1);
-#endif
if (sz < 1)
sz = 1;
@@ -182,9 +173,6 @@
#if XMALLOC_STATISTICS
malloc_stat(sz);
#endif
-#if XMALLOC_TRACE
- xmalloc_show_trace(p, 1);
-#endif
#if MEM_GEN_TRACE
if (tracefp) /* new ptr, old ptr, new size */
fprintf(tracefp, "r:%p:%p:%d\n", p, s, sz);
@@ -199,9 +187,6 @@
void *s = const_cast<void *>(s_const);
PROF_start(free_const);
-#if XMALLOC_TRACE
- xmalloc_show_trace(s, -1);
-#endif
#if XMALLOC_DEBUG
check_free(s);
=== modified file 'configure.ac'
--- configure.ac 2014-03-16 03:08:55 +0000
+++ configure.ac 2014-03-16 12:44:59 +0000
@@ -459,18 +459,6 @@
dnl fi
dnl ])
-dnl This is a developer only option.. developers know how to set defines
-dnl
-dnl AC_ARG_ENABLE(xmalloc-debug-trace,
-dnl [ --enable-xmalloc-debug-trace
-dnl Detailed trace of memory allocations],
-dnl [ if test "$enableval" = "yes" ; then
-dnl AC_MSG_NOTICE([malloc debug trace enabled])
-dnl AC_DEFINE(XMALLOC_TRACE,1,[Define to have a detailed trace of memory allocations])
-dnl AC_DEFINE(XMALLOC_DEBUG,1)
-dnl fi
-dnl ])
-
AH_TEMPLATE(XMALLOC_STATISTICS,[Define to have malloc statistics])
AC_ARG_ENABLE(xmalloc-statistics,
AS_HELP_STRING([--enable-xmalloc-statistics],
@@ -3055,7 +3043,6 @@
res_init \
__res_init \
rint \
- sbrk \
sched_getaffinity \
sched_setaffinity \
select \
=== modified file 'include/squid.h'
--- include/squid.h 2012-10-11 07:19:02 +0000
+++ include/squid.h 2014-03-16 12:44:59 +0000
@@ -103,11 +103,7 @@
/*
* Determine if this is a leak check build or standard
*/
-#if PURIFY
-#define LEAK_CHECK_MODE 1
-#elif WITH_VALGRIND
-#define LEAK_CHECK_MODE 1
-#elif XMALLOC_TRACE
+#if PURIFY || WITH_VALGRIND
#define LEAK_CHECK_MODE 1
#endif
=== modified file 'include/util.h'
--- include/util.h 2014-02-21 10:46:19 +0000
+++ include/util.h 2014-03-16 12:44:59 +0000
@@ -60,20 +60,6 @@
#include "SquidNew.h"
#endif
-#if XMALLOC_TRACE
-#define xmalloc(size) (xmalloc_func="xmalloc",xmalloc_line=__LINE__,xmalloc_file=__FILE__,xmalloc(size))
-#define xfree(ptr) (xmalloc_func="xfree",xmalloc_line=__LINE__,xmalloc_file=__FILE__,xfree(ptr))
-#define xrealloc(ptr,size) (xmalloc_func="xrealloc",xmalloc_line=__LINE__,xmalloc_file=__FILE__,xrealloc(ptr,size))
-#define xcalloc(n,size) (xmalloc_func="xcalloc",xmalloc_line=__LINE__,xmalloc_file=__FILE__,xcalloc(n,size))
-#define xstrdup(ptr) (xmalloc_func="xstrdup",xmalloc_line=__LINE__,xmalloc_file=__FILE__,xstrdup(ptr))
-extern int xmalloc_line;
-extern char *xmalloc_file;
-extern char *xmalloc_func;
-extern int xmalloc_trace;
-extern size_t xmalloc_total;
-extern void xmalloc_find_leaks(void);
-#endif
-
SQUIDCEXTERN time_t parse_iso3307_time(const char *buf);
SQUIDCEXTERN double xpercent(double part, double whole);
=== modified file 'lib/malloc_trace.cc'
--- lib/malloc_trace.cc 2014-02-21 10:46:19 +0000
+++ lib/malloc_trace.cc 2014-03-16 12:44:59 +0000
@@ -74,30 +74,11 @@
#endif
-#if XMALLOC_TRACE
-char *xmalloc_file = "";
-int xmalloc_line = 0;
-char *xmalloc_func = "";
-static int xmalloc_count = 0;
-int xmalloc_trace = 0; /* Enable with -m option */
-size_t xmalloc_total = 0;
-#undef xmalloc
-#undef xfree
-#undef xrealloc
-#undef xcalloc
-#undef xstrdup
-#endif
-
#if XMALLOC_DEBUG
#define DBG_ARRY_SZ (1<<11)
#define DBG_ARRY_BKTS (1<<8)
static void *(*malloc_ptrs)[DBG_ARRY_SZ];
static int malloc_size[DBG_ARRY_BKTS][DBG_ARRY_SZ];
-#if XMALLOC_TRACE
-static char *malloc_file[DBG_ARRY_BKTS][DBG_ARRY_SZ];
-static short malloc_line[DBG_ARRY_BKTS][DBG_ARRY_SZ];
-static int malloc_count[DBG_ARRY_BKTS][DBG_ARRY_SZ];
-#endif
static int dbg_initd = 0;
#define DBG_HASH_BUCKET(ptr) (((((int)ptr)>>4)+(((int)ptr)>>12)+(((int)ptr)>>20))&0xFF)
@@ -113,13 +94,6 @@
for (I = 0; I < DBG_ARRY_SZ; ++I) {
malloc_ptrs[B][I] = NULL;
malloc_size[B][I] = 0;
-#if XMALLOC_TRACE
-
- malloc_file[B][I] = NULL;
- malloc_line[B][I] = 0;
- malloc_count[B][I] = 0;
-#endif
-
}
}
@@ -137,19 +111,7 @@
continue;
malloc_ptrs[B][I] = NULL;
-
malloc_size[B][I] = 0;
-
-#if XMALLOC_TRACE
-
- malloc_file[B][I] = NULL;
-
- malloc_line[B][I] = 0;
-
- malloc_count[B][I] = 0;
-
-#endif
-
break;
}
@@ -196,19 +158,7 @@
continue;
malloc_ptrs[B][I] = p;
-
malloc_size[B][I] = (int) sz;
-
-#if XMALLOC_TRACE
-
- malloc_file[B][I] = xmalloc_file;
-
- malloc_line[B][I] = xmalloc_line;
-
- malloc_count[B][I] = xmalloc_count;
-
-#endif
-
break;
}
@@ -222,189 +172,3 @@
#endif
-#if XMALLOC_TRACE && !HAVE_MALLOCBLKSIZE
-size_t
-xmallocblksize(void *p)
-{
- int B, I;
- B = DBG_HASH_BUCKET(p);
-
- for (I = 0; I < DBG_ARRY_SZ; ++I) {
- if (malloc_ptrs[B][I] == p)
- return malloc_size[B][I];
- }
-
- return 0;
-}
-
-#endif
-
-#ifdef XMALLOC_TRACE
-static char *
-malloc_file_name(void *p)
-{
- int B, I;
- B = DBG_HASH_BUCKET(p);
-
- for (I = 0; I < DBG_ARRY_SZ; ++I) {
- if (malloc_ptrs[B][I] == p)
- return malloc_file[B][I];
- }
-
- return 0;
-}
-
-int
-malloc_line_number(void *p)
-{
- int B, I;
- B = DBG_HASH_BUCKET(p);
-
- for (I = 0; I < DBG_ARRY_SZ; ++I) {
- if (malloc_ptrs[B][I] == p)
- return malloc_line[B][I];
- }
-
- return 0;
-}
-
-int
-malloc_number(void *p)
-{
- int B, I;
- B = DBG_HASH_BUCKET(p);
-
- for (I = 0; I < DBG_ARRY_SZ; ++I) {
- if (malloc_ptrs[B][I] == p)
- return malloc_count[B][I];
- }
-
- return 0;
-}
-
-static void
-xmalloc_show_trace(void *p, int sign)
-{
- int statMemoryAccounted();
- static size_t last_total = 0, last_accounted = 0, last_mallinfo = 0;
- size_t accounted = statMemoryAccounted();
- size_t mi = 0;
- size_t sz;
-#if HAVE_MALLINFO
-
- struct mallinfo mp = mallinfo();
- mi = mp.uordblks + mp.usmblks + mp.hblkhd;
-#endif
-
- sz = xmallocblksize(p) * sign;
- xmalloc_total += sz;
- xmalloc_count += sign > 0;
-
- if (xmalloc_trace) {
- fprintf(stderr, "%c%8p size=%5d/%d acc=%5d/%d mallinfo=%5d/%d %s:%d %s",
- sign > 0 ? '+' : '-', p,
- (int) xmalloc_total - last_total, (int) xmalloc_total,
- (int) accounted - last_accounted, (int) accounted,
- (int) mi - last_mallinfo, (int) mi,
- xmalloc_file, xmalloc_line, xmalloc_func);
-
- if (sign < 0)
- fprintf(stderr, " (%d %s:%d)\n", malloc_number(p), malloc_file_name(p), malloc_line_number(p));
- else
- fprintf(stderr, " %d\n", xmalloc_count);
- }
-
- last_total = xmalloc_total;
- last_accounted = accounted;
- last_mallinfo = mi;
-}
-
-short malloc_refs[DBG_ARRY_BKTS][DBG_ARRY_SZ];
-#define XMALLOC_LEAK_ALIGN (4)
-static void
-xmalloc_scan_region(void *start, int size, int depth)
-{
- int B, I;
- char *ptr = start;
- char *end = ptr + size - XMALLOC_LEAK_ALIGN;
- static int sum = 0;
-
- while (ptr <= end) {
- void *p = *(void **) ptr;
-
- if (p && p != start) {
- B = DBG_HASH_BUCKET(p);
-
- for (I = 0; I < DBG_ARRY_SZ; ++I) {
- if (malloc_ptrs[B][I] == p) {
- if (!malloc_refs[B][I]++) {
- /* A new reference */
- fprintf(stderr, "%*s%p %s:%d size %d allocation %d\n",
- depth, "",
- malloc_ptrs[B][I], malloc_file[B][I],
- malloc_line[B][I], malloc_size[B][I],
- malloc_count[B][I]);
- sum += malloc_size[B][I];
- xmalloc_scan_region(malloc_ptrs[B][I], malloc_size[B][I], depth + 1);
-
- if (depth == 0) {
- if (sum != malloc_size[B][I])
- fprintf(stderr, "=== %d bytes\n", sum);
-
- sum = 0;
- }
-
-#if XMALLOC_SHOW_ALL_REFERENCES
-
- } else {
- /* We have already scanned this pointer... */
- fprintf(stderr, "%*s%p %s:%d size %d allocation %d ... (%d)\n",
- depth * 2, "",
- malloc_ptrs[B][I], malloc_file[B][I],
- malloc_line[B][I], malloc_size[B][I],
- malloc_count[B][I], malloc_refs[B][I]);
-#endif
-
- }
- }
- }
- }
-
- ptr += XMALLOC_LEAK_ALIGN;
- }
-}
-
-void
-xmalloc_find_leaks(void)
-{
- int B, I;
- int leak_sum = 0;
-
- extern void _etext;
- fprintf(stderr, "----- Memory map ----\n");
- xmalloc_scan_region(&_etext, (void *) sbrk(0) - (void *) &_etext, 0);
-
- for (B = 0; B < DBG_ARRY_BKTS; ++B) {
- for (I = 0; I < DBG_ARRY_SZ; ++I) {
- if (malloc_ptrs[B][I] && malloc_refs[B][I] == 0) {
- /* Found a leak... */
- fprintf(stderr, "Leak found: %p", malloc_ptrs[B][I]);
- fprintf(stderr, " %s", malloc_file[B][I]);
- fprintf(stderr, ":%d", malloc_line[B][I]);
- fprintf(stderr, " size %d", malloc_size[B][I]);
- fprintf(stderr, " allocation %d\n", malloc_count[B][I]);
- leak_sum += malloc_size[B][I];
- }
- }
- }
-
- if (leak_sum) {
- fprintf(stderr, "Total leaked memory: %d\n", leak_sum);
- } else {
- fprintf(stderr, "No memory leaks detected\n");
- }
-
- fprintf(stderr, "----------------------\n");
-}
-
-#endif /* XMALLOC_TRACE */
=== modified file 'src/globals.h'
--- src/globals.h 2014-02-21 10:46:19 +0000
+++ src/globals.h 2014-03-16 12:44:59 +0000
@@ -122,9 +122,6 @@
extern char *WIN32_Service_Command_Line; /* NULL */
extern unsigned int WIN32_run_mode; /* _WIN_SQUID_RUN_MODE_INTERACTIVE */
#endif
-#if HAVE_SBRK
-extern void *sbrk_start; /* 0 */
-#endif
extern int ssl_ex_index_server; /* -1 */
extern int ssl_ctx_ex_index_dont_verify_domain; /* -1 */
=== modified file 'src/main.cc'
--- src/main.cc 2014-02-21 16:14:05 +0000
+++ src/main.cc 2014-03-16 12:44:59 +0000
@@ -501,13 +501,7 @@
fatal("Need to add -DMALLOC_DBG when compiling to use -mX option");
#endif
- } else {
-#if XMALLOC_TRACE
- xmalloc_trace = !xmalloc_trace;
-#else
- fatal("Need to configure --enable-xmalloc-debug-trace to use -m option");
-#endif
- }
+ }
break;
case 'n':
@@ -1300,10 +1294,6 @@
{
ConfigureCurrentKid(argv[0]);
-#if HAVE_SBRK
- sbrk_start = sbrk(0);
-#endif
-
Debug::parseOptions(NULL);
debug_log = stderr;
@@ -1922,15 +1912,6 @@
mimeFreeMemory();
errorClean();
#endif
-#if !XMALLOC_TRACE
-
- if (opt_no_daemon) {
- file_close(0);
- file_close(1);
- file_close(2);
- }
-
-#endif
// clear StoreController
Store::Root(NULL);
@@ -1942,13 +1923,6 @@
RunRegisteredHere(RegisteredRunner::finishShutdown);
-#if XMALLOC_TRACE
-
- xmalloc_find_leaks();
-
- debugs(1, DBG_CRITICAL, "Memory used after shutdown: " << xmalloc_total);
-
-#endif
#if MEM_GEN_TRACE
log_trace_done();
=== modified file 'src/mgr/InfoAction.cc'
--- src/mgr/InfoAction.cc 2013-10-25 00:13:46 +0000
+++ src/mgr/InfoAction.cc 2014-03-16 12:44:59 +0000
@@ -81,9 +81,6 @@
cpu_usage += stats.cpu_usage;
cpu_usage5 += stats.cpu_usage5;
cpu_usage60 += stats.cpu_usage60;
-#if HAVE_SBRK
- proc_data_seg += stats.proc_data_seg;
-#endif
maxrss += stats.maxrss;
page_faults += stats.page_faults;
#if HAVE_MSTATS && HAVE_GNUMALLOC_H
@@ -106,8 +103,8 @@
mp_uordbytes += stats.mp_uordbytes;
mp_allocated += stats.mp_allocated;
mp_treeoverhead += stats.mp_treeoverhead;
-#endif
-#endif
+#endif /* HAVE_STRUCT_MALLINFO_MXFAST */
+#endif /* HAVE_MALLINFO && HAVE_STRUCT_MALLINFO */
total_accounted += stats.total_accounted;
#if !(HAVE_MSTATS && HAVE_GNUMALLOC_H) && HAVE_MALLINFO && HAVE_STRUCT_MALLINFO
mem_pool_allocated += stats.mem_pool_allocated;
=== modified file 'src/mgr/InfoAction.h'
--- src/mgr/InfoAction.h 2013-09-27 16:06:15 +0000
+++ src/mgr/InfoAction.h 2014-03-16 12:44:59 +0000
@@ -68,9 +68,6 @@
double cpu_usage;
double cpu_usage5;
double cpu_usage60;
-#if HAVE_SBRK
- double proc_data_seg;
-#endif
double maxrss;
double page_faults;
#if HAVE_MSTATS && HAVE_GNUMALLOC_H
@@ -93,8 +90,8 @@
double mp_uordbytes;
double mp_allocated;
double mp_treeoverhead;
-#endif
-#endif
+#endif /* HAVE_STRUCT_MALLINFO_MXFAST */
+#endif /* HAVE_MALLINFO && HAVE_STRUCT_MALLINFO */
double total_accounted;
#if !(HAVE_MSTATS && HAVE_GNUMALLOC_H) && HAVE_MALLINFO && HAVE_STRUCT_MALLINFO
double mem_pool_allocated;
=== modified file 'src/stat.cc'
--- src/stat.cc 2014-01-24 01:57:15 +0000
+++ src/stat.cc 2014-03-16 12:44:59 +0000
@@ -588,12 +588,6 @@
stats.cpu_usage5 = statCPUUsage(5);
stats.cpu_usage60 = statCPUUsage(60);
-#if HAVE_SBRK
-
- stats.proc_data_seg = ((char *) sbrk(0) - (char *) sbrk_start);
-
-#endif
-
stats.maxrss = rusage_maxrss(&rusage);
stats.page_faults = rusage_pagefaults(&rusage);
@@ -814,13 +808,6 @@
storeAppendPrintf(sentry, "\tCPU Usage, 60 minute avg:\t%.2f%%\n",
stats.cpu_usage60);
-#if HAVE_SBRK
-
- storeAppendPrintf(sentry, "\tProcess Data Segment Size via sbrk(): %.0f KB\n",
- stats.proc_data_seg / 1024);
-
-#endif
-
storeAppendPrintf(sentry, "\tMaximum Resident Size: %.0f KB\n",
stats.maxrss);
@@ -1461,18 +1448,12 @@
if (Config.warnings.high_memory) {
size_t i = 0;
#if HAVE_MSTATS && HAVE_GNUMALLOC_H
-
struct mstats ms = mstats();
i = ms.bytes_total;
#elif HAVE_MALLINFO && HAVE_STRUCT_MALLINFO
-
struct mallinfo mp = mallinfo();
i = mp.arena;
-#elif HAVE_SBRK
-
- i = (size_t) ((char *) sbrk(0) - (char *) sbrk_start);
#endif
-
if (Config.warnings.high_memory < i)
debugs(18, DBG_CRITICAL, "WARNING: Memory usage at " << ((unsigned long int)(i >> 20)) << " MB");
}
# Begin bundle
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