src/sys/compat/linux/linux_elf.c, branch release/13.2.0

linux(4): Deduplicate linux_trans_osrel().

2023-02-09T07:55:24Z

MFC after: 1 week (cherry picked from commit 95b8603427d5759c5d6090ffaacfaf7f3b8fb926)

linux(4): Deduplicate linux_copyout_strings().

2023-02-09T07:55:23Z

It is still present in the 32-bit Linuxulator on amd64. MFC after: 1 week (cherry picked from commit 6039e966ff276ff6bcb57f2f70e7d8ff376b24fd)

linux(4): Use COMPAT_LINUX32 enstead of __ELF_WORD_SIZE.

2023-02-09T07:54:16Z

COMPAT_LINUX32 option is defined for case when building 32-bit Linuxulator for the 64-bit host. Usage of __ELF_WORD_SIZE is wrong here as it is equal to 32 on i386 too. MFC after: 1 week (cherry picked from commit 6f8439db241c7409275d77f5376e8505967bef67)

linux(4): Microoptimize linux_elf.h for future use.

2023-02-09T07:54:16Z

In order to reduce code duplication move coredump support definitions into the appropriate header and hide private definitions. MFC after: 1 week (cherry picked from commit 7446514533a40b376eaeb349ea33531ce9c711c2)

elf_note_prpsinfo: handle more failures from proc_getargv()

2022-08-09T19:47:32Z

Resulting sbuf_len() from proc_getargv() might return 0 if user mangled ps_strings enough. Also, sbuf_len() API contract is to return -1 if the buffer overflowed. The later should not occur because get_ps_strings() checks for catenated length, but check for this subtle detail explicitly as well to be more resilent. The end result is that p_comm is used in this situations. Approved by: so Security: FreeBSD-SA-22:09.elf Reported by: Josef 'Jeff' Sipek Reviewed by: delphij, markj admbugs: 988 Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D35391 (cherry picked from commit 00d17cf342cd9f4f8fd1dcd79c8caec359145532)

linux: Drop some unnecessary includes

2022-06-17T19:33:38Z

Drop some unnecessary includes from Linuxulator ptrace and coredump code. No functional changes. Sponsored By: EPSRC Differential Revision: https://reviews.freebsd.org/D32925 (cherry picked from commit 06d5ef0aad20f703c15350663ce2600bae2fe189)

linux(4): implement coredump support

2022-06-17T19:33:02Z

Implement dumping core for Linux binaries on amd64, for both 32- and 64-bit executables. Some bits are still missing. This is based on a prototype by chuck@. Reviewed By: kib Sponsored By: EPSRC Differential Revision: https://reviews.freebsd.org/D30019 (cherry picked from commit 447636e43c08d697664512a50f00f93f41c0a79f)