Josh Poimboeuf d431ba6911 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 14:13:52 +09:00

..

arch/x86

objtool, kprobes/x86: Sync the latest <asm/insn.h> header with tools/objtool/arch/x86/include/asm/insn.h

2018-06-21 04:02:58 +09:00

Documentation

x86/asm: Fix inline asm call constraints for Clang

2017-09-23 15:06:20 +02:00

.gitignore

objtool: Move synced files to their original relative locations

2017-12-29 17:53:41 +01:00

arch.h

objtool: Assume unannotated UD2 instructions are dead ends

2017-07-28 08:33:32 +02:00

Build

objtool: Add ORC unwind table generation

2017-07-18 10:57:43 +02:00

builtin-check.c

objtool: Add module specific retpoline rules

2018-03-15 10:54:38 +01:00

builtin-orc.c

objtool: Use existing global variables for options

2018-03-15 10:54:37 +01:00

builtin.h

objtool: Add module specific retpoline rules

2018-03-15 10:54:38 +01:00

cfi.h

objtool: Handle GCC stack pointer adjustment bug

2017-08-30 10:48:41 +02:00

check.c

objtool: Move objtool_file struct off the stack

2019-03-27 14:13:52 +09:00

check.h

objtool: Add retpoline validation

2018-03-15 10:54:37 +01:00

elf.c

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

2018-12-17 09:28:50 +01:00

elf.h

objtool: Support GCC 8's cold subfunctions

2018-06-05 11:41:54 +02:00

Makefile

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

2018-07-11 16:29:21 +02:00

objtool.c

objtool: Print top level commands on incorrect usage

2017-12-25 14:26:14 +01:00

orc_dump.c

objtool: Fix 64-bit build on 32-bit host

2017-12-29 17:53:42 +01:00

orc_gen.c

objtool: Warn on stripped section symbol

2018-02-07 11:12:21 -08:00

orc.h

objtool: Move synced files to their original relative locations

2017-12-29 17:53:41 +01:00

special.c

objtool: Implement stack validation 2.0

2017-06-30 10:19:19 +02:00

special.h

…

sync-check.sh

objtool: Move kernel headers/code sync check to a script

2017-12-29 17:53:42 +01:00

warn.h

objtool: Implement stack validation 2.0

2017-06-30 10:19:19 +02:00