freebsd-skq/lib/libc
Brandon Bergren 0a90eb9f2f [PowerPC] libc backwards compatibility shim for auxv change
As part of the FreeBSD powerpc* flag day (1300070), the auxv numbering was
changed to match every other platform.

See D20799 for more details on that change.

While the kernel and rtld were adapted, libc was not, so old dynamic
binaries broke for reasons other than the ABI change on powerpc64.

Since it's possible to support nearly everything regarding old binaries by
adding compatibility code to libc (as besides rtld, it is the main point
where auxv is digested), we might as well provide compatibility code.

The only unhandled case remaining should be "new format libraries that call
elf_aux_info() which are dynamically linked to by old-format binaries",
which should be quite rare.

Reviewed by:	jhibbits
Sponsored by:	Tag1 Consulting, Inc.
Differential Revision:	https://reviews.freebsd.org/D23096
2020-01-22 02:06:34 +00:00
..
aarch64 Fix initial exec TLS mode for dynamically loaded shared objects. 2019-03-29 17:52:57 +00:00
amd64 Remove resolver_qual from DEFINE_IFUNC/DEFINE_UIFUNC macros. 2019-05-16 22:20:54 +00:00
arm arm/ffs.S: remove stale comment. 2019-12-28 02:11:41 +00:00
capability Replace dot-dot relative pathing with SRCTOP-relative paths where possible 2017-01-20 03:23:24 +00:00
compat-43 Adjust history, info source from v1's manuals 2019-09-04 13:44:46 +00:00
db Remove "All rights reserved" from my files. 2018-05-10 06:41:08 +00:00
gdtoa libc: further adoption of SPDX licensing ID tags. 2017-11-25 17:12:48 +00:00
gen [PowerPC] libc backwards compatibility shim for auxv change 2020-01-22 02:06:34 +00:00
gmon mcount: tidy up ANSIfication 2018-10-20 22:39:35 +00:00
i386 remove obsolete i386 MD memchr implementation 2019-09-25 16:49:22 +00:00
iconv libc: correct iconv buffer overflow 2019-07-02 23:56:37 +00:00
include Add linux-compatible memfd_create 2019-09-25 18:03:18 +00:00
inet libc: fix cases of undefined behavior. 2018-08-07 15:24:19 +00:00
isc SPDX: more ISC-related files. 2017-12-08 17:52:53 +00:00
locale libc: Fix a few bugs in the xlocale collation code. 2020-01-09 20:49:26 +00:00
md Replace dot-dot relative pathing with SRCTOP-relative paths where possible 2017-01-20 03:23:24 +00:00
mips mips: fix some mcount nits 2019-09-02 01:55:55 +00:00
nameser Bounds check again after advancing cp, otherwise we have a possible 2019-09-05 19:35:30 +00:00
net Increase YPMAXRECORD to 16M to be compatible with Linux. 2019-08-12 20:27:33 +00:00
nls Create new EINTEGRITY error with message "Integrity check failed". 2019-01-17 06:35:45 +00:00
posix1e Remove some redundant code in _posix1e_acl_strip_np 2019-02-19 19:15:15 +00:00
powerpc [PowerPC] Fix typo in _ctx_start on ppc32 2019-11-23 23:41:21 +00:00
powerpc64 [PPC64] memcpy/memmove/bcopy optimization 2020-01-15 20:25:52 +00:00
powerpcspe [PowerPC] Fix SPE floating point environment manipulation 2019-12-12 17:12:18 +00:00
quad Revert r351078, r351085: stand/quad.h eviction 2019-08-15 17:15:32 +00:00
regex lib/libc/regex: fix build with REDEBUG defined 2019-09-24 12:21:01 +00:00
resolv Rather than using the legacy IP struct fields in the union for the 2019-06-04 20:53:35 +00:00
riscv Use "far" calls and branches so that lld uses valid relocations. 2019-12-04 21:01:13 +00:00
rpc Increase YPMAXRECORD to 16M to be compatible with Linux. 2019-08-12 20:27:33 +00:00
secure ssp: knock out some trivial warnings that come up with WARNS=6 2020-01-04 20:07:11 +00:00
softfloat Add implementations for clog(3), clogf(3), and clog(3). 2018-05-13 09:54:34 +00:00
sparc64 Fix initial exec TLS mode for dynamically loaded shared objects. 2019-03-29 17:52:57 +00:00
stdio libc: remove gets 2019-09-01 16:12:05 +00:00
stdlib random.3: Some minor improvements to wording/clarity 2020-01-20 23:44:10 +00:00
stdtime strptime: make %k and %l specifiers match their description in 2018-11-03 23:37:13 +00:00
string [PPC64] strncpy optimization 2020-01-15 19:53:03 +00:00
sys vfs: provide F_ISUNIONSTACK as a kludge for libc 2020-01-17 14:42:25 +00:00
tests Add qsort_r(3) regression test. 2020-01-20 11:45:18 +00:00
uuid libc: further adoption of SPDX licensing ID tags. 2017-11-25 17:12:48 +00:00
x86 Remove resolver_qual from DEFINE_IFUNC/DEFINE_UIFUNC macros. 2019-05-16 22:20:54 +00:00
xdr General further adoption of SPDX licensing ID tags. 2017-11-20 19:49:47 +00:00
yp Increase the size of the send and receive buffers for YP client rpc 2019-09-16 06:42:01 +00:00
libc_nossp.ldscript
libc.ldscript
Makefile revert r341429 "disable BIND_NOW in libc, libthr, and rtld" 2019-03-28 02:12:32 +00:00
Makefile.depend Update Makefile.depend files 2019-12-11 17:37:53 +00:00
Makefile.depend.options Update libssp paths in various Makefile.depend* files 2020-01-06 18:15:55 +00:00
Versions.def Create namespace for the symbols added during 13-CURRENT cycle. 2018-11-12 19:12:14 +00:00