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Re: [bug-idutils] [PATCH 1/9] tests: disable gnulib's get-rusage-as test
From: |
Bruno Haible |
Subject: |
Re: [bug-idutils] [PATCH 1/9] tests: disable gnulib's get-rusage-as test |
Date: |
Sat, 04 Feb 2012 12:59:27 +0100 |
User-agent: |
KMail/4.7.4 (Linux/3.1.0-1.2-desktop; KDE/4.7.4; x86_64; ; ) |
Hi Jim,
> setrlimit(RLIMIT_AS, {rlim_cur=RLIM_INFINITY, rlim_max=RLIM_INFINITY}) = 0
> getrlimit(RLIMIT_AS, {rlim_cur=RLIM_INFINITY, rlim_max=RLIM_INFINITY}) = 0
No brk() calls. It looks really like GCC has optimized out the two malloc()
calls. And indeed, with a recent GCC 4.7 snapshot I reproduce the problem.
A workaround would be to use -fno-builtin-malloc. But I can just as well
disable the optimization in the test:
2012-02-04 Bruno Haible <address@hidden>
get-rusage-as, get-rusage-data tests: Avoid test failure with gcc-4.7.
* tests/test-get-rusage-as.c (main): Assign the malloc() results to
global variables.
* tests/test-get-rusage-data.c (main): Likewise.
Reported by Jim Meyering.
--- tests/test-get-rusage-as.c.orig Sat Feb 4 12:58:13 2012
+++ tests/test-get-rusage-as.c Sat Feb 4 12:51:53 2012
@@ -23,6 +23,9 @@
#include "macros.h"
+void *memchunk1;
+void *memchunk2;
+
int
main ()
{
@@ -30,11 +33,11 @@
value1 = get_rusage_as ();
- malloc (0x88);
+ memchunk1 = malloc (0x88);
value2 = get_rusage_as ();
- malloc (0x281237);
+ memchunk2 = malloc (0x281237);
value3 = get_rusage_as ();
--- tests/test-get-rusage-data.c.orig Sat Feb 4 12:58:13 2012
+++ tests/test-get-rusage-data.c Sat Feb 4 12:52:38 2012
@@ -23,6 +23,9 @@
#include "macros.h"
+void *memchunk1;
+void *memchunk2;
+
int
main ()
{
@@ -30,11 +33,11 @@
value1 = get_rusage_data ();
- malloc (0x88);
+ memchunk1 = malloc (0x88);
value2 = get_rusage_data ();
- malloc (0x281237);
+ memchunk2 = malloc (0x281237);
value3 = get_rusage_data ();