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revert r341429 "disable BIND_NOW in libc, libthr, and rtld"

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r345620 by kib@ fixed the rtld issue that caused a crash at startup
during resolution of libc's ifuncs with BIND_NOW.

PR:		233333
Sponsored by:	The FreeBSD Foundation
This commit is contained in:
Ed Maste 2019-03-28 02:12:32 +00:00
parent ad484b8c53
commit 09b47fc1c2
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=345625
5 changed files with 3 additions and 5 deletions
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1
contrib/elftoolchain/readelf/readelf.c
View File

@ -3490,6 +3490,7 @@ dump_notes(struct readelf *re)
static struct flag_desc note_feature_ctl_flags[] = {
{ NT_FREEBSD_FCTL_ASLR_DISABLE, "ASLR_DISABLE" },
{ NT_FREEBSD_FCTL_IMPLIED_MAX_PROT, "IMPLIED_MAX_PROT" },
{ 0, NULL }
};

2
lib/libc/Makefile
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@ -6,8 +6,6 @@ SHLIBDIR?= /lib
.include <src.opts.mk>
# BIND_NOW in libc results in segfault at startup (PR 233333)
MK_BIND_NOW= no
# Force building of libc_pic.a
MK_TOOLCHAIN= yes

1
lib/libthr/Makefile
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@ -9,7 +9,6 @@ PACKAGE= clibs
SHLIBDIR?= /lib
.include <src.opts.mk>
MK_BIND_NOW= no
MK_SSP= no
LIB=thr

1
libexec/rtld-elf/Makefile
View File

@ -6,7 +6,6 @@
.include <src.opts.mk>
PACKAGE= clibs
MK_BIND_NOW= no
MK_PIE= no # Always position independent using local rules
MK_SSP= no

3
sys/sys/elf_common.h
View File

@ -763,7 +763,8 @@ typedef struct {
#define NT_FREEBSD_FEATURE_CTL 4
/* NT_FREEBSD_FEATURE_CTL desc[0] bits */
#define NT_FREEBSD_FCTL_ASLR_DISABLE 0x00000001
#define NT_FREEBSD_FCTL_ASLR_DISABLE 0x00000001
#define NT_FREEBSD_FCTL_IMPLIED_MAX_PROT 0x00000002
/* Values for n_type. Used in core files. */
#define NT_PRSTATUS 1 /* Process status. */