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Samuel Thibault 8c6beab4e1 hurd: Rework sbrk 
Making the brk start exactly at the end of the main application binary was
requiring to get it through the _end symbol, which does not work any more
with recent toolchains, and actually produces in libc.so a confusing
external _end symbol that produces odd results, see
https://sourceware.org/bugzilla/show_bug.cgi?id=23499

Trying to do so is quite outdated anyway with the tendency for address
randomization.

Using _end was also allowing to include the main binary data within
the RLIMIT_DATA, but this also seems outdated with dynamic library
loading, and nowadays' memory consumption via malloc and mmap rather than
statically-allocated data.

This adds a BRK_START macro in <vm_param.h> that just tells where we
want to start the brk, and thus removes the _end symbol.

* sysdeps/mach/hurd/i386/vm_param.h: New file.
* sysdeps/mach/hurd/brk.c: Use BRK_START as brk start instead of _end.
Also ignore __data_start.
* hurd/Versions: Remove _end symbol.
* sysdeps/mach/hurd/i386/libc.abilist: Remove _end symbol.
2020-08-05 23:52:04 +02:00
..
hurd hurd: clean fd and port on thread cancel 2020-06-28 00:38:46 +00:00
alloc-fd.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
catch-exc.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
catch-signal.c Hurd: Use __sigmask in favor of deprecated sigmask 2020-05-28 11:40:13 +02:00
compat-20.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
ctty-input.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
ctty-output.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
Depend * Makefile (subdir-target-args): New variable. 2006-02-28 07:11:04 +00:00
dtable.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
exc2signal.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
faultexc.defs
fchroot.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
fcntl-internal.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
fd-cleanup.c hurd: clean fd and port on thread cancel 2020-06-28 00:38:46 +00:00
fd-close.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
fd-read.c hurd: clean fd and port on thread cancel 2020-06-28 00:38:46 +00:00
fd-write.c hurd: clean fd and port on thread cancel 2020-06-28 00:38:46 +00:00
fopenport.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
get-host.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
getdport.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
geteuids.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
getumask.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
hurd-raise.c hurd: Fix hang in _hurd_raise_signal from pthread_kill 2020-06-07 01:57:26 +02:00
hurd.h hurd: clean fd and port on thread cancel 2020-06-28 00:38:46 +00:00
hurdauth.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
hurdchdir.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
hurdexec.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
hurdfault.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
hurdfault.h Hurd: Use __sigmask in favor of deprecated sigmask 2020-05-28 11:40:13 +02:00
hurdfchdir.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
hurdhost.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
hurdid.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
hurdinit.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
hurdioctl.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
hurdkill.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
hurdlock.c htl: Add clock variants 2020-05-26 00:46:07 +00:00
hurdlock.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
hurdlookup.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
hurdmalloc.c hurdmalloc: Run fork handler as late as possible [BZ #19431] 2016-09-22 01:45:48 +02:00
hurdmalloc.h hurdmalloc: Run fork handler as late as possible [BZ #19431] 2016-09-22 01:45:48 +02:00
hurdmsg.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
hurdpid.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
hurdports.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
hurdprio.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
hurdrlimit.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
hurdselect.c hurd: Add remaining cancelation points 2020-06-28 22:46:21 +00:00
hurdsig.c Hurd: Use __sigmask in favor of deprecated sigmask 2020-05-28 11:40:13 +02:00
hurdsock.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
hurdsocket.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
hurdstartup.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
hurdstartup.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
intern-fd.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
intr-msg.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
intr-rpc.defs Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
intr-rpc.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
longjmp-ts.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
lookup-at.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
lookup-retry.c hurd: Make O_TRUNC update mtime/ctime 2020-03-29 19:42:55 +02:00
Makefile hurd: clean fd and port on thread cancel 2020-06-28 00:38:46 +00:00
msgportdemux.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
new-fd.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
Notes
openport.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
path-lookup.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
pid2task.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
port-cleanup.c hurd: clean fd and port on thread cancel 2020-06-28 00:38:46 +00:00
port2fd.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
ports-get.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
ports-set.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
preempt-sig.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
privports.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
report-wait.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
set-host.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
setauth.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
seteuids.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
siginfo.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
sigunwind.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
stack_chk_fail_local.c hurd: fix build with -fstack-protector-strong 2017-08-27 22:10:17 +02:00
task2pid.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
thread-cancel.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
thread-self.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
trampoline.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
Versions hurd: Rework sbrk 2020-08-05 23:52:04 +02:00
vpprintf.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
xattr.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00