openbsd-src/libexec/ld.so/ at jcs · jcs.org/openbsd-src

jcs.org / openbsd-src

jcs's openbsd hax

openbsd

openbsd-src / libexec / ld.so /

at jcs 15 folders 30 files

For strange reasons which made sense at the time, the text segment was placed head of the btext (boot.text) segment. (the boot.text segment is "unmapped" after initization, as a self-protection mechanism). this meant the LOAD's virtual addresses were not in sequence, which clearly isn't what we intended.

2 years ago

Some of architectures do not us the stack protector (for example, retguard or hppa with reverse stack). So they do not call __stack_smash_handler(), and do not call sendsyslog(2). On those architectures, we can onditionally remove the syscall stub (which also removes it from the pinsyscalls table), and the stack protector handler. ok miod

11 months ago

enable -fret-clean on amd64, for libc libcrypto ld.so kernel, and all the ssh tools. The dynamic objects are entirely ret-clean, static binaries will contain a blend of cleaning and non-cleaning callers.

2 years ago

Some of architectures do not us the stack protector (for example, retguard or hppa with reverse stack). So they do not call __stack_smash_handler(), and do not call sendsyslog(2). On those architectures, we can onditionally remove the syscall stub (which also removes it from the pinsyscalls table), and the stack protector handler. ok miod

11 months ago

For strange reasons which made sense at the time, the text segment was placed head of the btext (boot.text) segment. (the boot.text segment is "unmapped" after initization, as a self-protection mechanism). this meant the LOAD's virtual addresses were not in sequence, which clearly isn't what we intended.

2 years ago

Some of architectures do not us the stack protector (for example, retguard or hppa with reverse stack). So they do not call __stack_smash_handler(), and do not call sendsyslog(2). On those architectures, we can onditionally remove the syscall stub (which also removes it from the pinsyscalls table), and the stack protector handler. ok miod

11 months ago

These programs are using pledge "tmppath" with "rpath wpath cpath". The "tmppath" is not needed. ok semarie and others

1 month ago

ldd can pledge "stdio rpath proc exec prot_exec". We can later bifurbicate at the dlopen vs execve split, dropping either "proc" or "prot_exec". ok gnezdo

2 years ago

The recent changes to expand_block_move in gcc causes assignment of 16-byte struct to no longer need to invoke memcpy(), and makes that code unnecessary.

8 months ago

For strange reasons which made sense at the time, the text segment was placed head of the btext (boot.text) segment. (the boot.text segment is "unmapped" after initization, as a self-protection mechanism). this meant the LOAD's virtual addresses were not in sequence, which clearly isn't what we intended.

2 years ago

For strange reasons which made sense at the time, the text segment was placed head of the btext (boot.text) segment. (the boot.text segment is "unmapped" after initization, as a self-protection mechanism). this meant the LOAD's virtual addresses were not in sequence, which clearly isn't what we intended.

2 years ago

Make sure the syscall table entries are aligned on a 4-byte boundary. Required for strict-alignment architectures and a good idea on others. same as kettenis commit to libc

2 years ago

Some of architectures do not us the stack protector (for example, retguard or hppa with reverse stack). So they do not call __stack_smash_handler(), and do not call sendsyslog(2). On those architectures, we can onditionally remove the syscall stub (which also removes it from the pinsyscalls table), and the stack protector handler. ok miod

11 months ago

Some of architectures do not us the stack protector (for example, retguard or hppa with reverse stack). So they do not call __stack_smash_handler(), and do not call sendsyslog(2). On those architectures, we can onditionally remove the syscall stub (which also removes it from the pinsyscalls table), and the stack protector handler. ok miod

11 months ago

Fix relocation handling for PLT entries with a r_addend

7 months ago

Some of architectures do not us the stack protector (for example, retguard or hppa with reverse stack). So they do not call __stack_smash_handler(), and do not call sendsyslog(2). On those architectures, we can onditionally remove the syscall stub (which also removes it from the pinsyscalls table), and the stack protector handler. ok miod

11 months ago

SPECS.randomdata

Bump ELF_RANDOMIZE_LIMIT to 1MB. ok deraadt@

7 years ago

Use a Thread Information Block in both single and multi-threaded programs. This stores errno, the cancelation flags, and related bits for each thread and is allocated by ld.so or libc.a. This is an ABI break from 5.9-stable!

10 years ago

Prep .c files for removing the #includes from */archdep.h * replace #include "archdep.h" with #includes of what is used, pulling in "syscall.h", "util.h", and "archdep.h" as needed * delete #include <sys/syscall.h> from syscall.h * only pull in <sys/stat.h> to the three files that use _dl_fstat(), forward declare struct stat in syscall.h for the others * NBBY is for <sys/select.h> macros; just use '8' in dl_printf.c * <machine/vmparam.h> is only needed on i386; conditionalize it * stop using __LDPGSZ: use _MAX_PAGE_SHIFT (already used by malloc.c) where necessary * delete other bogus #includes, order legit per style: <sys/*> then <*/*>, then <*>, then "*"

4 years ago

chacha_private.h

Use a static chacha instance to fill randomdata sections. Avoids looping over a syscall for randomdata sections larger than 256B.

8 years ago

Prep .c files for removing the #includes from */archdep.h * replace #include "archdep.h" with #includes of what is used, pulling in "syscall.h", "util.h", and "archdep.h" as needed * delete #include <sys/syscall.h> from syscall.h * only pull in <sys/stat.h> to the three files that use _dl_fstat(), forward declare struct stat in syscall.h for the others * NBBY is for <sys/select.h> macros; just use '8' in dl_printf.c * <machine/vmparam.h> is only needed on i386; conditionalize it * stop using __LDPGSZ: use _MAX_PAGE_SHIFT (already used by malloc.c) where necessary * delete other bogus #includes, order legit per style: <sys/*> then <*/*>, then <*>, then "*"

4 years ago

Wrap function declarations with __{BEGIN,END}_HIDDEN_DECLS to reduce relocations inside ld.so that it has to bootstrap

9 years ago

Prep .c files for removing the #includes from */archdep.h * replace #include "archdep.h" with #includes of what is used, pulling in "syscall.h", "util.h", and "archdep.h" as needed * delete #include <sys/syscall.h> from syscall.h * only pull in <sys/stat.h> to the three files that use _dl_fstat(), forward declare struct stat in syscall.h for the others * NBBY is for <sys/select.h> macros; just use '8' in dl_printf.c * <machine/vmparam.h> is only needed on i386; conditionalize it * stop using __LDPGSZ: use _MAX_PAGE_SHIFT (already used by malloc.c) where necessary * delete other bogus #includes, order legit per style: <sys/*> then <*/*>, then <*>, then "*"

4 years ago

ugly whitespaces

2 years ago

Prep .c files for removing the #includes from */archdep.h * replace #include "archdep.h" with #includes of what is used, pulling in "syscall.h", "util.h", and "archdep.h" as needed * delete #include <sys/syscall.h> from syscall.h * only pull in <sys/stat.h> to the three files that use _dl_fstat(), forward declare struct stat in syscall.h for the others * NBBY is for <sys/select.h> macros; just use '8' in dl_printf.c * <machine/vmparam.h> is only needed on i386; conditionalize it * stop using __LDPGSZ: use _MAX_PAGE_SHIFT (already used by malloc.c) where necessary * delete other bogus #includes, order legit per style: <sys/*> then <*/*>, then <*>, then "*"

4 years ago

ugly whitespaces

2 years ago

Document search order

3 years ago

Use the correct start address for the initial immutable address range for a shared library. The code used the load offset of the shared library instead of the start address of the mapped memory. In most case that works because the first segment of a shared library typically starts at virtual address zero. But on sparc64 (and possibly other architectures that still use ld.bfd) libicudata.so from ports has a non-zero virtual address (possibly because it is a data-only library). So this fixes the bug reported by claudio@

4 months ago

library_mquery.c

ld.so should stop calling msyscall(2), since it is fully neutered and about to be removed. Please be careful building through this, you need a kernel at least March 29th or so to build through it, otherwise use snapshots to cross over. ok various people

2 years ago

revert cache lookup for full pathnames

2 years ago

ugly whitespaces

2 years ago

Avoid pulling sys/param.h, by using _ALIGN instead. sys/time.h now gets NBBY and howmany() also ok guenther

4 years ago

Eliminate failure returns from _dl_split_path(): if malloc fails just _dl_oom() Prompted by Qualys's leveraging malloc failure in _dl_split_path() to get stuff past.

6 years ago

Wrap function declarations with __{BEGIN,END}_HIDDEN_DECLS to reduce relocations inside ld.so that it has to bootstrap

9 years ago

Prep .c files for removing the #includes from */archdep.h * replace #include "archdep.h" with #includes of what is used, pulling in "syscall.h", "util.h", and "archdep.h" as needed * delete #include <sys/syscall.h> from syscall.h * only pull in <sys/stat.h> to the three files that use _dl_fstat(), forward declare struct stat in syscall.h for the others * NBBY is for <sys/select.h> macros; just use '8' in dl_printf.c * <machine/vmparam.h> is only needed on i386; conditionalize it * stop using __LDPGSZ: use _MAX_PAGE_SHIFT (already used by malloc.c) where necessary * delete other bogus #includes, order legit per style: <sys/*> then <*/*>, then <*>, then "*"

4 years ago

ugly whitespaces

2 years ago

remove prototypes with no matching function and externs with no var partly checked by millert@

2 years ago

The /var/run/ld.so.hints file is mapped into memory. It is never replaced, so the mapping can be immutable. ok kettenis

3 years ago

Wrap function declarations with __{BEGIN,END}_HIDDEN_DECLS to reduce relocations inside ld.so that it has to bootstrap

9 years ago

Prep .c files for removing the #includes from */archdep.h * replace #include "archdep.h" with #includes of what is used, pulling in "syscall.h", "util.h", and "archdep.h" as needed * delete #include <sys/syscall.h> from syscall.h * only pull in <sys/stat.h> to the three files that use _dl_fstat(), forward declare struct stat in syscall.h for the others * NBBY is for <sys/select.h> macros; just use '8' in dl_printf.c * <machine/vmparam.h> is only needed on i386; conditionalize it * stop using __LDPGSZ: use _MAX_PAGE_SHIFT (already used by malloc.c) where necessary * delete other bogus #includes, order legit per style: <sys/*> then <*/*>, then <*>, then "*"

4 years ago

ld.so should stop calling msyscall(2), since it is fully neutered and about to be removed. Please be careful building through this, you need a kernel at least March 29th or so to build through it, otherwise use snapshots to cross over. ok various people

2 years ago

locally us MAXIMUM() rather than MAX() ok tb gnezdo

2 years ago

Prep .c files for removing the #includes from */archdep.h * replace #include "archdep.h" with #includes of what is used, pulling in "syscall.h", "util.h", and "archdep.h" as needed * delete #include <sys/syscall.h> from syscall.h * only pull in <sys/stat.h> to the three files that use _dl_fstat(), forward declare struct stat in syscall.h for the others * NBBY is for <sys/select.h> macros; just use '8' in dl_printf.c * <machine/vmparam.h> is only needed on i386; conditionalize it * stop using __LDPGSZ: use _MAX_PAGE_SHIFT (already used by malloc.c) where necessary * delete other bogus #includes, order legit per style: <sys/*> then <*/*>, then <*>, then "*"

4 years ago

Some of architectures do not us the stack protector (for example, retguard or hppa with reverse stack). So they do not call __stack_smash_handler(), and do not call sendsyslog(2). On those architectures, we can onditionally remove the syscall stub (which also removes it from the pinsyscalls table), and the stack protector handler. ok miod

11 months ago

use SIGKILL instead of 9; ok guenther

2 years ago