Josh Poimboeuf c818b2face objtool: Move objtool_file struct off the stack ...

commit 0c671812f152b628bd87c0af49da032cc2a2c319 upstream.

Objtool uses over 512k of stack, thanks to the hash table embedded in
the objtool_file struct.  This causes an unnecessarily large stack
allocation and breaks users with low stack limits.

Move the struct off the stack.

Fixes: 042ba73fe7 ("objtool: Add several performance improvements")
Reported-by: Vassili Karpov <moosotc@gmail.com>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/df92dcbc4b84b02ffa252f46876df125fb56e2d7.1552954176.git.jpoimboe@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2019-03-27 14:13:03 +09:00

..

arch/x86

objtool: header file sync-up

2018-06-05 10:28:58 +02:00

Documentation

objtool: sync up with the 4.14.47 version of objtool

2018-06-05 10:28:57 +02:00

.gitignore

objtool: update .gitignore file

2018-06-26 08:08:05 +08:00

arch.h

objtool: sync up with the 4.14.47 version of objtool

2018-06-05 10:28:57 +02:00

Build

objtool: sync up with the 4.14.47 version of objtool

2018-06-05 10:28:57 +02:00

builtin-check.c

objtool: sync up with the 4.14.47 version of objtool

2018-06-05 10:28:57 +02:00

builtin-orc.c

objtool: sync up with the 4.14.47 version of objtool

2018-06-05 10:28:57 +02:00

builtin.h

objtool: sync up with the 4.14.47 version of objtool

2018-06-05 10:28:57 +02:00

cfi.h

objtool: sync up with the 4.14.47 version of objtool

2018-06-05 10:28:57 +02:00

check.c

objtool: Move objtool_file struct off the stack

2019-03-27 14:13:03 +09:00

check.h

objtool: sync up with the 4.14.47 version of objtool

2018-06-05 10:28:57 +02:00

elf.c

objtool: Fix segfault in .cold detection with -ffunction-sections

2018-12-17 09:38:32 +01:00

elf.h

objtool: Support GCC 8's cold subfunctions

2018-06-05 10:28:57 +02:00

Makefile

Kbuild: fix # escaping in .cmd files for future Make

2018-07-11 16:26:45 +02:00

objtool.c

objtool: sync up with the 4.14.47 version of objtool

2018-06-05 10:28:57 +02:00

orc_dump.c

objtool: sync up with the 4.14.47 version of objtool

2018-06-05 10:28:57 +02:00

orc_gen.c

objtool: sync up with the 4.14.47 version of objtool

2018-06-05 10:28:57 +02:00

orc.h

objtool: sync up with the 4.14.47 version of objtool

2018-06-05 10:28:57 +02:00

special.c

objtool: sync up with the 4.14.47 version of objtool

2018-06-05 10:28:57 +02:00

special.h

…

sync-check.sh

objtool: sync up with the 4.14.47 version of objtool

2018-06-05 10:28:57 +02:00

warn.h

objtool: sync up with the 4.14.47 version of objtool

2018-06-05 10:28:57 +02:00