Re: toolchain/56153: gdb is broken for alpha

[Christos Zoulas <christos%zoulas.com@localhost>]

The following reply was made to PR toolchain/56153; it has been noted by GNATS.

From: Christos Zoulas <christos%zoulas.com@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: toolchain-manager%netbsd.org@localhost,
 gnats-admin%netbsd.org@localhost,
 netbsd-bugs%netbsd.org@localhost,
 rokuyama.rk%gmail.com@localhost
Subject: Re: toolchain/56153: gdb is broken for alpha
Date: Fri, 7 May 2021 10:51:54 -0400

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 Which means (in theory :-) that the malloca.c allocates with alloca(3) =
 and frees with regular
 free which gives jemalloc a heartache. The next step is to instrument =
 them malloca.h and malloca.c
 calls with printfs to see what's happening...
 
 christos
 
 > On May 7, 2021, at 10:35 AM, Rin Okuyama <rokuyama.rk%gmail.com@localhost> =
 wrote:
 >=20
 > The following reply was made to PR toolchain/56153; it has been noted =
 by GNATS.
 >=20
 > From: Rin Okuyama <rokuyama.rk%gmail.com@localhost>
 > To: Christos Zoulas <christos%zoulas.com@localhost>, gnats-bugs%netbsd.org@localhost
 > Cc: toolchain-manager%netbsd.org@localhost, gnats-admin%netbsd.org@localhost,
 > netbsd-bugs%netbsd.org@localhost
 > Subject: Re: toolchain/56153: gdb is broken for alpha
 > Date: Fri, 7 May 2021 23:31:13 +0900
 >=20
 >>> Can you try undef'ing all the HAVE_ALLOCA?
 >>=20
 >> Sure. I will soon!
 >=20
 > That's it! It works fine at least for cat.core:
 >=20
 > ----
 > ds10$ ./gdb.noalloca cat cat.core
 > GNU gdb (GDB) 11.0.50.20200914-git
 > ...(snip)...
 > Reading symbols from cat...
 > Reading symbols from /usr/libdata/debug//bin/cat.debug...
 > [New process 18637]
 > Core was generated by `cat'.
 > Program terminated with signal SIGQUIT, Quit.
 > #0  0x000003fffdc242b8 in read () from /lib/libc.so.12
 > (gdb) bt
 > #0  0x000003fffdc242b8 in read () from /lib/libc.so.12
 > #1  0x0000000120001910 in raw_cat (rfd=3D<optimized out>)
 >      at /usr/src/bin/cat/cat.c:313
 > #2  0x0000000120001b0c in raw_args (argv=3D0x1fffff728)
 >      at /usr/src/bin/cat/cat.c:277
 > #3  0x0000000120002160 in main (argc=3D<optimized out>, =
 argv=3D0x1fffff728)
 >      at /usr/src/bin/cat/cat.c:136
 > (gdb)
 > ----
 >=20
 > Thanks,
 > rin
 >=20
 
 
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