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bsd-user: pull in target_arch_thread.h update target_arch_elf.h

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Update target_arch_elf.h to remove thread_init. Move its contents to
target_arch_thread.h and rename to target_thread_init(). Update
elfload.c to call it. Create thread_os_thread.h to hold the os specific
parts of the thread and threat manipulation routines. Currently, it just
includes target_arch_thread.h. target_arch_thread.h contains the at the
moment unused target_thread_set_upcall which will be used in the future
when creating actual thread (i386 has this stubbed, but other
architectures in the bsd-user tree have real ones). FreeBSD doesn't do
AT_HWCAP, so remove that code. Linux does, and this code came from there.

These changes are all interrelated and could be brokend down, but seem
to represent a reviewable changeset since most of the change is boiler
plate.

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Kyle Evans <kevans@FreeBSD.org>
This commit is contained in:
Warner Losh 2021-08-03 22:04:20 -06:00 • committed by Warner Losh
parent 031fe7af8a
commit a8fe6d5d62
8 changed files with 171 additions and 85 deletions
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4
bsd-user/elfload.c
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@ -24,6 +24,7 @@
#include "qemu/path.h"
#include "target_arch_elf.h"
#include "target_os_thread.h"
/* this flag is uneffective under linux too, should be deleted */
#ifndef MAP_DENYWRITE
@ -1001,5 +1002,6 @@ int load_elf_binary(struct bsd_binprm *bprm, struct target_pt_regs *regs,
void do_init_thread(struct target_pt_regs *regs, struct image_info *infop)
{
init_thread(regs, infop);
target_thread_init(regs, infop);
}