Bug 97841 – Gcc failed to bootstrap on ia64

Bug 97841 - Gcc failed to bootstrap on ia64

Summary:	Gcc failed to bootstrap on ia64

Status:	CLOSED RAWHIDE

Aliases:	None

Product:	Red Hat Raw Hide
Classification:	Retired
Component:	gcc (Show other bugs)
Sub Component:
Version:	1.0
Hardware:	ia64 Linux

Priority	medium Severity high
Target Milestone:	---
Target Release:	---
Assigned To:	Jakub Jelinek
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URL:	http://gcc.gnu.org/bugzilla/show_bug....
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Depends On:
Blocks:
	Show dependency tree / graph

Reported:	2003-06-22 23:35 EDT by hjl
Modified:	2007-04-18 12:54 EDT (History)
CC List:	0 users

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Fixed In Version:
Doc Type:	Bug Fix
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Last Closed:	2003-07-23 11:42:58 EDT
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Description hjl 2003-06-22 23:35:32 EDT

Gcc from gcc-3_3-rhl-branch in cvs on Sun Jun 22 16:04:11 UTC 2003
failed to bootstrap under Linux/ia64 on Itanium 2 running RHAS 2.1.
The last known working one was checked out on Wed Jun 18 15:04:48 UTC
2003. The same gcc bootstrapped successfully on Itanium 1 running
RHAS 2.1. The error message is

Bootstrap comparison failure!
java/decl.o differs
make[3]: *** [compare] Error 1
make[3]: Leaving directory `/export/build/gnu/gcc-3.3-redhat/build-ia64-
linux/gcc'
make[2]: *** [bootstrap] Error 2
make[2]: Leaving directory `/export/build/gnu/gcc-3.3-redhat/build-ia64-linux'
Command exited with non-zero status 2

Comment 1 hjl 2003-06-23 11:05:14 EDT

It turned out that it is a gcc bug exposed by a kernel bug. I am
running 2.4.18-e.31smp. When I configure gcc, I got

checking for working mmap from /dev/zero... no
checking for working mmap with MAP_ANON(YMOUS)... no

As the result, I had

/* #undef HAVE_MMAP_DEV_ZERO */
/* #undef HAVE_MMAP_ANON */
#define HAVE_MMAP_FILE 1

in auto-host.h. Apparently, ggc-page.c doesn't work too well with
this configuration.

Comment 2 hjl 2003-06-23 11:35:39 EDT

It may be a known bug in gcc. which has been fixed on
mainline. See URL for details

Comment 3 Jakub Jelinek 2003-07-23 11:42:58 EDT

Fixed on gcc-3_3-rhl-branch.

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