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can't print enums on AMD
From: |
Kevin Nomura |
Subject: |
can't print enums on AMD |
Date: |
Thu, 24 Feb 2005 11:41:16 -0800 |
User-agent: |
Mutt/1.5.6+20040907i |
Are enums known to be broken with dwarf2 on the amd64 target?
google didn't help me, so thought I'd ask here.
Testcase:
[scm8]$ cat en.c
enum enumtype { ENUM_VALUE_ONE = 0x00000001 };
main ()
{
printf ("%d\n", ENUM_VALUE_ONE );
}
Problem:
[scm8]$ gcc -gdwarf-2 en.c # same result as gcc -g
[scm8]$ gdb -q a.out
Using host libthread_db library "/lib64/tls/libthread_db.so.1".
(gdb) p ENUM_VALUE_ONE
No symbol "ENUM_VALUE_ONE" in current context.
And with my own gdb 6.3:
[scm8]$ ~/dl/gdb-6.3_amd64/gdb/gdb a.out
GNU gdb 6.3
This GDB was configured as "x86_64-unknown-linux-gnu"...Using host
libthread_db library "/lib64/tls/libthread_db.so.1".
(gdb) p ENUM_VALUE_ONE
No symbol "ENUM_VALUE_ONE" in current context.
(gdb) q
however
[scm8]$ gcc -gstabs en.c
[scm8]$ gdb -q a.out
Using host libthread_db library "/lib64/tls/libthread_db.so.1".
(gdb) p ENUM_VALUE_ONE
$1 = ENUM_VALUE_ONE
(gdb) p (int)ENUM_VALUE_ONE
$2 = 1
Configuration:
[scm8]$ cat /etc/issue
Red Hat Enterprise Linux AS release 3 (Taroon Update 3)
[scm8]$ gcc -v
Reading specs from /usr/lib/gcc-lib/x86_64-redhat-linux/3.2.3/specs
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man
--infodir=/usr/share/info --enable-shared --enable-threads=posix
--disable-checking --with-system-zlib --enable-__cxa_atexit
--host=x86_64-redhat-linux
Thread model: posix
gcc version 3.2.3 20030502 (Red Hat Linux 3.2.3-42)
[scm8]$ gdb --version
GNU gdb Red Hat Linux (6.1post-1.20040607.17rh)
This GDB was configured as "x86_64-redhat-linux-gnu".
[scm8]$ rpm -qa | grep (gcc|gdb)
gdb-6.1post-1.20040607.17
gcc-3.2.3-42
This problem was originally seen with gcc = gcc 3.4.2 cross
compiling to amd64 from Linux (so it's not obviously due to
a back-level compiler).
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