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Patch 3077 : MIPSpro 7.2.1 C front-end rollup #1 : [IRIX 6.5 6.4 6.3 6.2]
INDEX
RELATIONS
RELEASE NOTES
1. Patch SG0003077 Release Note
This release note describes patch SG0003077 for the MIPSPro
7.2.1 C Front-end rollup #1.
1.1 Supported Hardware Platforms
This patch contains bug fixes for all platforms. The
software cannot be installed on other configurations.
1.2 Supported Software Platforms
This patch contains bug fixes to the MIPSpro 7.2.1 C Front-
end on a system running IRIX 6.2, 6.3, 6.4 or 6.5. The
software cannot be installed on other configurations.
1.3 Bugs Fixed by Patch SG0003077
This patch contains fixes for the following bugs in the
MIPSpro 7.2.1 C Front-end. Bug numbers from Silicon
Graphics bug tracking system are included for reference.
o Static Function Called Once Too Often.
The following code when compiled -g executes
incorrectly:
%cat test1.c
include <stdio.h>
typedef struct pair_t {
/* if "first" is eliminated, problem doesn't manifest */
int first;
int second;
} pair_t;
typedef struct ptr_t {
pair_t * target;
} ptr_t;
static pair_t * f( ptr_t * p ) {
printf("called f0);
return p->target;
}
void h() {
pair_t pair;
ptr_t ptr;
ptr.target = &pair;
(*f(&ptr)).second += 42; /* Should call f exactly once */
}
main() {
h();
}
%cc -g -64 test1.c
%a.out
called f
called f
The function f() should only have been called once.
This has been fixed (Bug #578295).
1.4 Subsystems Included in Patch SG0003077
This patch release includes these subsystems:
o patchSG0003077.c_fe_sw.c
1.5 Installation Instructions
Because you want to install only the patches for problems
you have encountered, patch software is not installed by
default. After reading the descriptions of the bugs fixed
in this patch (see Section 1.3), determine the patches that
meet your specific needs.
If, after reading Sections 1.1 and 1.2 of these release
notes, you are unsure whether your hardware and software
meet the requirements for installing a particular patch, run
inst. The inst program does not allow you to install
patches that are incompatible with your hardware or
software.
Patch software is installed like any other Silicon Graphics
software product. Follow the instructions in your Software
Installation Administrator's Guide to bring up the miniroot
form of the software installation tools.
Follow these steps to select a patch for installation:
1. At the Inst> prompt, type
install patchSGxxxxxxx
where xxxxxxx is the patch number.
2. Initiate the installation sequence. Type
Inst> go
3. You may find that two patches have been marked as
incompatible. (The installation tools reject an
installation request if an incompatibility is
detected.) If this occurs, you must deselect one of
the patches.
Inst> keep patchSGxxxxxxx
where xxxxxxx is the patch number.
4. After completing the installation process, exit the
inst program by typing
Inst> quit
1.6 Patch Removal Instructions
To remove a patch, use the versions remove command as you
would for any other software subsystem. The removal process
reinstates the original version of software unless you have
specifically removed the patch history from your system.
versions remove patchSGxxxxxxx
where xxxxxxx is the patch number.
To keep a patch but increase your disk space, use the
versions removehist command to remove the patch history.
versions removehist patchSGxxxxxxx
where xxxxxxx is the patch number.
1.7 Known Problems INST SUBSYSTEM REQUIREMENTS No Requirements Information Available. INST SUBSYSTEM CHECKSUMS These checksums help to provide a 'signature' for the patch inst image which can be used to authenticate other inst images. You can obtain this kind of output by running sum -r on the image (from the command line): 61882 1 patchSG0003077 10927 1927 patchSG0003077.c_fe_sw 62590 1 patchSG0003077.idb INST SUBSYSTEM FILE LISTINGS The following lists the files which get installed from each subsystem in the patch:
DOWNLOAD PATCH
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Document Id: 20021117071735-IRIXPatch-1229
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