openbsd-src/libexec/ld.so/ at master

aarch64

Call entry point of the executable through register x17. This allows it to be a normal C function that starts with "bti c" when BTI contro flow integretry enforcement is in place. Add "bti c" to _dl_bind_start().

3 years ago

alpha

unify spacing for LOAD FLAGS lines

3 years ago

amd64

unify spacing for LOAD FLAGS lines

3 years ago

arm

Since the introduction of automatic immutable from the kernel, the munmap() of ld.so boot.text region is now (silently) failing because the region is contained within the text LOAD, which is immutable. So create a new btext LOAD with flags PF_X|PF_R|PF_OPENBSD_MUTABLE, and place all boot.text objects in there. This LOAD must also be page-aligned so it doesn't skip unmapping some of the object region, previously it was hilariously unaligned. ok kettenis and guenther seemed to like it also This one is for 32-bit arm, tested by phessler

3 years ago

hppa

unify spacing for LOAD FLAGS lines

3 years ago

i386

unify spacing for LOAD FLAGS lines

3 years ago

ldconfig

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

ldd

Use <elf.h> instead of <elf_abi.h>

8 years ago

m88k

Add ld.so linker scripts on the remaining platforms.

3 years ago

mips64

the kernel on mips64 (octeon, loongson) is in good enough shape to run --execute-only ld.so (meaning FLAGS (1) on the LOAD line for the text segment, in the ld.script). the linker, when using built-in linker scripts, is not ready yet for other libraries / binaries..

3 years ago

powerpc

unify spacing for LOAD FLAGS lines

3 years ago

powerpc64

unify spacing for LOAD FLAGS lines

3 years ago

riscv64

unify spacing for LOAD FLAGS lines

3 years ago

sh

Explicitly mark the text LOAD as FLAGS(5), meaning RX, with a comment. This is the default value of the linker, but I really like placing the comment "architecturally required data islands".

3 years ago

sparc64

unify spacing for LOAD FLAGS lines

3 years ago

Makefile

Lookup the start,len of the "execve" stub in libc.so, and tell the kernel where it is with pinsyscall(). In non-static binaries, kernel execve(2) will now insist upon being called from that small region. Arriving from a different region smells like ROP methodology, and the process is killed.

3 years ago

SPECS.randomdata

Bump ELF_RANDOMIZE_LIMIT to 1MB. ok deraadt@

7 years ago

Symbols.map

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

boot.c

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

dir.c

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

dir.h

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

9 years ago

dl_dirname.c

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

dl_printf.c

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

dl_uname.c

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

dlfcn.c

dlopen() with RTLD_NODELETE should also set the object nodelete flag, so the mapping layer will know it can use mimmutable()

3 years ago

ld.so.1

Document search order

3 years ago

library.c

Accumulate intermediate imutables locally before applying

3 years ago

library_mquery.c

Accumulate intermediate imutables locally before applying

3 years ago

library_subr.c

dtors were broken by trying to reuse DF_1_NODELETE to hint that this library would never unload, and could be immutable. Pass a seperate flag for our purposes Noticed from regress tests by anton, ok kettenis

3 years ago

loader.c

Adjust inline !libc check to match the intent in ld.so

3 years ago

malloc.c

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

4 years ago

path.c

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

path.h

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

9 years ago

reallocarray.c

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

resolve.c

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

resolve.h

Accumulate intermediate imutables locally before applying

3 years ago

sod.c

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

sod.h

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

9 years ago

strtol.c

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

syscall.h

Lookup the start,len of the "execve" stub in libc.so, and tell the kernel where it is with pinsyscall(). In non-static binaries, kernel execve(2) will now insist upon being called from that small region. Arriving from a different region smells like ROP methodology, and the process is killed.

3 years ago

tib.c

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

trace.c

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

util.c

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

util.h

Unite all nitems copies in ld.so/util.h

3 years ago