Robert P. J. DAY says:
apparently, the patchset for gcc 4.2.1 applies properly to the
source for gcc 4.2.2 and gcc 4.2.3. so, if you want, you can simply
add support for those last two just by augmenting menuconfig and
adding a couple symlinks for those two directories. seems like a
cheap way to add a couple new versions.
1 Date: 18 May 2005 22:47:59 -0000
2 Message-ID: <20050518224759.7352.qmail@sourceware.org>
3 From: "hubicka at ucw dot cz" <gcc-bugzilla@gcc.gnu.org>
5 References: <20050407215701.20815.dank@kegel.com>
6 Reply-To: gcc-bugzilla@gcc.gnu.org
7 Subject: [Bug gcov/profile/20815] -fprofile-use barfs with "coverage mismatch for function '...' while reading counter 'arcs'."
10 ------- Additional Comments From hubicka at ucw dot cz 2005-05-18 22:47 -------
11 Subject: Re: [Bug gcov/profile/20815] -fprofile-use barfs with "coverage mismatch for function '...' while reading counter 'arcs'."
14 > ------- Additional Comments From hubicka at ucw dot cz 2005-05-18 22:22 -------
15 > Subject: Re: [Bug gcov/profile/20815] -fprofile-use barfs with "coverage mismatch for function '...' while reading counter 'arcs'."
17 > coverage_checksum_string already knows a bit about ignoring random seed
18 > produced mess. It looks like this needs to be extended somehow to
19 > handle namespaces too...
21 This seems to solve the missmatch. Would it be possible to test it on
22 bigger testcase and if it works distile a testcase that don't use
23 file IO so it is more suitable for gcc regtesting?
26 ===================================================================
27 RCS file: /cvs/gcc/gcc/gcc/coverage.c,v
28 retrieving revision 1.6.2.12.2.12
29 diff -c -3 -p -r1.6.2.12.2.12 coverage.c
30 *** gcc-old/gcc/coverage.c 18 May 2005 07:37:31 -0000 1.6.2.12.2.12
31 --- gcc/gcc/coverage.c 18 May 2005 22:45:36 -0000
32 *************** coverage_checksum_string (unsigned chksu
34 as the checksums are used only for sanity checking. */
35 for (i = 0; string[i]; i++)
37 if (!strncmp (string + i, "_GLOBAL__", 9))
38 ! for (i = i + 9; string[i]; i++)
45 ! for (y = 1; y < 9; y++)
46 ! if (!(string[i + y] >= '0' && string[i + y] <= '9')
47 ! && !(string[i + y] >= 'A' && string[i + y] <= 'F'))
49 ! if (y != 9 || string[i + 9] != '_')
51 ! for (y = 10; y < 18; y++)
52 ! if (!(string[i + y] >= '0' && string[i + y] <= '9')
53 ! && !(string[i + y] >= 'A' && string[i + y] <= 'F'))
57 ! scan = sscanf (string + i + 10, "%X", &seed);
59 ! if (seed != crc32_string (0, flag_random_seed))
61 ! string = dup = xstrdup (string);
62 ! for (y = 10; y < 18; y++)
70 as the checksums are used only for sanity checking. */
71 for (i = 0; string[i]; i++)
74 + if (!strncmp (string + i, "_GLOBAL__N_", 11))
76 if (!strncmp (string + i, "_GLOBAL__", 9))
79 ! /* C++ namespaces do have scheme:
80 ! _GLOBAL__N_<filename>_<wrongmagicnumber>_<magicnumber>functionname
81 ! since filename might contain extra underscores there seems
82 ! to be no better chance then walk all possible offsets looking
85 ! for (;string[offset]; offset++)
86 ! for (i = i + offset; string[i]; i++)
91 ! for (y = 1; y < 9; y++)
92 ! if (!(string[i + y] >= '0' && string[i + y] <= '9')
93 ! && !(string[i + y] >= 'A' && string[i + y] <= 'F'))
95 ! if (y != 9 || string[i + 9] != '_')
97 ! for (y = 10; y < 18; y++)
98 ! if (!(string[i + y] >= '0' && string[i + y] <= '9')
99 ! && !(string[i + y] >= 'A' && string[i + y] <= 'F'))
104 ! string = dup = xstrdup (string);
105 ! for (y = 10; y < 18; y++)
116 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20815
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119 You reported the bug, or are watching the reporter.