lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Wed, 20 Oct 2021 12:44:45 +0200 From: Peter Zijlstra <peterz@...radead.org> To: x86@...nel.org, jpoimboe@...hat.com, andrew.cooper3@...rix.com Cc: linux-kernel@...r.kernel.org, peterz@...radead.org, alexei.starovoitov@...il.com, ndesaulniers@...gle.com Subject: [PATCH v2 03/14] objtool: Shrink struct instruction Any one instruction can only ever call a single function, therefore insn->mcount_loc_node is superfluous and can use insn->call_node. This shrinks struct instruction, which is by far the most numerous structure objtool creates. Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org> --- tools/objtool/check.c | 6 +++--- tools/objtool/include/objtool/check.h | 1 - 2 files changed, 3 insertions(+), 4 deletions(-) --- a/tools/objtool/check.c +++ b/tools/objtool/check.c @@ -701,7 +701,7 @@ static int create_mcount_loc_sections(st return 0; idx = 0; - list_for_each_entry(insn, &file->mcount_loc_list, mcount_loc_node) + list_for_each_entry(insn, &file->mcount_loc_list, call_node) idx++; sec = elf_create_section(file->elf, "__mcount_loc", 0, sizeof(unsigned long), idx); @@ -709,7 +709,7 @@ static int create_mcount_loc_sections(st return -1; idx = 0; - list_for_each_entry(insn, &file->mcount_loc_list, mcount_loc_node) { + list_for_each_entry(insn, &file->mcount_loc_list, call_node) { loc = (unsigned long *)sec->data->d_buf + idx; memset(loc, 0, sizeof(unsigned long)); @@ -1049,7 +1049,7 @@ static void annotate_call_site(struct ob insn->type = INSN_NOP; - list_add_tail(&insn->mcount_loc_node, &file->mcount_loc_list); + list_add_tail(&insn->call_node, &file->mcount_loc_list); return; } } --- a/tools/objtool/include/objtool/check.h +++ b/tools/objtool/include/objtool/check.h @@ -40,7 +40,6 @@ struct instruction { struct list_head list; struct hlist_node hash; struct list_head call_node; - struct list_head mcount_loc_node; struct section *sec; unsigned long offset; unsigned int len;
Powered by blists - more mailing lists