Brandon Bergren 44c9aa49ea rtld: do not try to mmap a zero-sized PT_LOAD ...

When a PT_LOAD segment has a zero p_filesz, skip the data mmap, as mmapping
zero bytes from a file is an error.

A PT_LOAD with zero p_filesz is legal (but somewhat uncommon due to segment
merging in modern linkers, as it is more efficient to merge .data and .bss
by just extending p_memsz in the previous segment, assuming compatible
page protection.)

This was seen on ports/graphics/glew on a powerpc64 ELFv2 experimental
build.

Submitted by:	Alfredo Dal'Ava Junior <alfredo.junior@eldorado.org.br>
Reviewed by:	kib
Differential Revision:	https://reviews.freebsd.org/D22634

2019-12-12 17:40:32 +00:00

..

aarch64

Improve R_AARCH64_TLSDESC relocation.

2018-12-15 10:38:07 +00:00

amd64

rtld-elf: Remove x86 elf_rtld.x linker scripts.

2019-08-04 21:43:34 +00:00

arm

rtld: attempt to fix reloc_nonplt_object TLS allocation

2019-03-29 14:35:23 +00:00

i386

rtld-elf: Remove x86 elf_rtld.x linker scripts.

2019-08-04 21:43:34 +00:00

mips

rtld: attempt to fix reloc_non_plt TLS allocation on MIPS

2019-03-29 15:07:00 +00:00

powerpc

[PowerPC] Fix stack padding issue on ppc32.

2019-11-24 06:43:03 +00:00

powerpc64

[PPC64] Fix rtld direct exec mode

2019-08-05 13:22:02 +00:00

riscv

Correct the offset of static TLS variables for Initial-Exec on RISC-V.

2019-12-10 21:56:44 +00:00

rtld-libc

rtld-elf: fix build with xtoolchain-llvm90

2019-08-15 17:35:24 +00:00

sparc64

Improve R_AARCH64_TLSDESC relocation.

2018-12-15 10:38:07 +00:00

tests

Fix regression tests broken by r337067.

2018-08-02 11:55:16 +00:00

debug.c

libexec: adoption of SPDX licensing ID tags.

2017-11-27 15:25:02 +00:00

debug.h

Use rtld_putstr() instead of write() for the rtld msg() macro

2019-06-26 15:43:26 +00:00

libmap.c

Reduce size of rtld by 22% by pulling in less code from libc

2019-06-30 11:49:58 +00:00

libmap.conf

Move libmap.conf to libexec/rtld-elf/

2018-09-18 00:25:00 +00:00

libmap.h

rtld-elf: make it compile with WARNS=3

2018-10-29 21:08:11 +00:00

Makefile

libcompat: Correct rtld MLINKS

2019-11-12 22:31:59 +00:00

Makefile.depend

…

map_object.c

rtld: do not try to mmap a zero-sized PT_LOAD

2019-12-12 17:40:32 +00:00

paths.h

rtld-elf: compile with WANRS=4 warnings other than -Wcast-align

2018-10-29 21:08:19 +00:00

rtld_lock.c

Reduce size of rtld by 22% by pulling in less code from libc

2019-06-30 11:49:58 +00:00

rtld_lock.h

libexec: adoption of SPDX licensing ID tags.

2017-11-27 15:25:02 +00:00

rtld_malloc.c

Remove remnants of optimization for > pagesize allocations.

2019-09-02 08:03:29 +00:00

rtld_malloc.h

Add header file missed in r343564.

2019-01-29 22:45:24 +00:00

rtld_printf.c

Reduce size of rtld by 22% by pulling in less code from libc

2019-06-30 11:49:58 +00:00

rtld_printf.h

Use rtld_putstr() instead of write() for the rtld msg() macro

2019-06-26 15:43:26 +00:00

rtld_tls.h

libexec: adoption of SPDX licensing ID tags.

2017-11-27 15:25:02 +00:00

rtld_utrace.h

Renumber copyright clause 4

2017-02-28 23:42:47 +00:00

rtld.1

Add serial comma.

2017-09-01 16:56:37 +00:00

rtld.c

Fix aux_info corruption in rtld direct execution mode.

2019-09-14 21:18:10 +00:00

rtld.h

powerpc: Transition to Secure-PLT, like most other OSs

2019-06-25 00:40:44 +00:00

Symbol.map

…

xmalloc.c

Reduce size of rtld by 22% by pulling in less code from libc

2019-06-30 11:49:58 +00:00