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Cast RLIM_INFINITY to rlim_t to fix 64-bit Solaris 10 build

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gdb doesn't currently build on 64-bit Solaris 10:

/vol/src/gnu/gdb/hg/master/local/gdb/utils.c: In function ‘void dump_core()’:
/vol/src/gnu/gdb/hg/master/local/gdb/utils.c:223:55: error: narrowing conversion
 of ‘-3’ from ‘long int’ to ‘rlim_t’ {aka ‘long unsigned int’} inside {
} [-Wnarrowing]
   struct rlimit rlim = { RLIM_INFINITY, RLIM_INFINITY };
                                                       ^
/vol/src/gnu/gdb/hg/master/local/gdb/utils.c:223:55: error: narrowing conversion
 of ‘-3’ from ‘long int’ to ‘rlim_t’ {aka ‘long unsigned int’} inside {
} [-Wnarrowing]

This was introduced by

2018-08-27  Tom Tromey  <tom@tromey.com>

	PR build/23087:
	* configure: Rebuild.
	* warning.m4 (AM_GDB_WARNINGS): Remove -Wno-narrowing.

and can be fixed by the following patch.

Solaris 11 isn't affected because there <sys/resource.h> has

#define	RLIM_INFINITY	((rlim_t)-3l)

instead of

#define RLIM_INFINITY   (-3l)

on Solaris 10.

Tested on amd64-pc-solaris2.10 and amd64-pc-solaris2.11.

	* utils.c (dump_core) [HAVE_SETRLIMIT]: Cast RLIM_INFINITY to
	rlim_t.
This commit is contained in:
Rainer Orth
2018-09-18 09:14:11 +02:00
parent aff4a11991
commit 206c1947c1
2 changed files with 6 additions and 1 deletions
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5
gdb/ChangeLog
View File

@@ -1,3 +1,8 @@
2018-09-18 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
* utils.c (dump_core) [HAVE_SETRLIMIT]: Cast RLIM_INFINITY to
rlim_t.
2018-09-17 Philippe Waroquiers <philippe.waroquiers@skynet.be>
* python/lib/gdb/command/frame_filters.py (EnableFrameFilter):

2
gdb/utils.c
View File

@@ -220,7 +220,7 @@ void
dump_core (void)
{
#ifdef HAVE_SETRLIMIT
struct rlimit rlim = { RLIM_INFINITY, RLIM_INFINITY };
struct rlimit rlim = { (rlim_t) RLIM_INFINITY, (rlim_t) RLIM_INFINITY };
setrlimit (RLIMIT_CORE, &rlim);
#endif /* HAVE_SETRLIMIT */