linux(4): implement coredump support
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
This commit is contained in:
parent
8c2dd68caa
commit
447636e43c
@ -79,6 +79,7 @@ __FBSDID("$FreeBSD$");
|
|||||||
#include <vm/vm_map.h>
|
#include <vm/vm_map.h>
|
||||||
|
|
||||||
#include <x86/ifunc.h>
|
#include <x86/ifunc.h>
|
||||||
|
#include <x86/reg.h>
|
||||||
#include <x86/sysarch.h>
|
#include <x86/sysarch.h>
|
||||||
|
|
||||||
#include <security/audit/audit.h>
|
#include <security/audit/audit.h>
|
||||||
@ -347,3 +348,36 @@ DEFINE_IFUNC(, int, futex_xorl, (int, uint32_t *, int *))
|
|||||||
return ((cpu_stdext_feature & CPUID_STDEXT_SMAP) != 0 ?
|
return ((cpu_stdext_feature & CPUID_STDEXT_SMAP) != 0 ?
|
||||||
futex_xorl_smap : futex_xorl_nosmap);
|
futex_xorl_smap : futex_xorl_nosmap);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
void
|
||||||
|
bsd_to_linux_regset(struct reg *b_reg, struct linux_pt_regset *l_regset)
|
||||||
|
{
|
||||||
|
|
||||||
|
l_regset->r15 = b_reg->r_r15;
|
||||||
|
l_regset->r14 = b_reg->r_r14;
|
||||||
|
l_regset->r13 = b_reg->r_r13;
|
||||||
|
l_regset->r12 = b_reg->r_r12;
|
||||||
|
l_regset->rbp = b_reg->r_rbp;
|
||||||
|
l_regset->rbx = b_reg->r_rbx;
|
||||||
|
l_regset->r11 = b_reg->r_r11;
|
||||||
|
l_regset->r10 = b_reg->r_r10;
|
||||||
|
l_regset->r9 = b_reg->r_r9;
|
||||||
|
l_regset->r8 = b_reg->r_r8;
|
||||||
|
l_regset->rax = b_reg->r_rax;
|
||||||
|
l_regset->rcx = b_reg->r_rcx;
|
||||||
|
l_regset->rdx = b_reg->r_rdx;
|
||||||
|
l_regset->rsi = b_reg->r_rsi;
|
||||||
|
l_regset->rdi = b_reg->r_rdi;
|
||||||
|
l_regset->orig_rax = b_reg->r_rax;
|
||||||
|
l_regset->rip = b_reg->r_rip;
|
||||||
|
l_regset->cs = b_reg->r_cs;
|
||||||
|
l_regset->eflags = b_reg->r_rflags;
|
||||||
|
l_regset->rsp = b_reg->r_rsp;
|
||||||
|
l_regset->ss = b_reg->r_ss;
|
||||||
|
l_regset->fs_base = 0;
|
||||||
|
l_regset->gs_base = 0;
|
||||||
|
l_regset->ds = b_reg->r_ds;
|
||||||
|
l_regset->es = b_reg->r_es;
|
||||||
|
l_regset->fs = b_reg->r_fs;
|
||||||
|
l_regset->gs = b_reg->r_gs;
|
||||||
|
}
|
||||||
|
@ -205,39 +205,6 @@ map_regs_to_linux(struct reg *b_reg, struct linux_pt_reg *l_reg)
|
|||||||
l_reg->ss = b_reg->r_ss;
|
l_reg->ss = b_reg->r_ss;
|
||||||
}
|
}
|
||||||
|
|
||||||
void
|
|
||||||
bsd_to_linux_regset(struct reg *b_reg, struct linux_pt_regset *l_regset)
|
|
||||||
{
|
|
||||||
|
|
||||||
l_regset->r15 = b_reg->r_r15;
|
|
||||||
l_regset->r14 = b_reg->r_r14;
|
|
||||||
l_regset->r13 = b_reg->r_r13;
|
|
||||||
l_regset->r12 = b_reg->r_r12;
|
|
||||||
l_regset->rbp = b_reg->r_rbp;
|
|
||||||
l_regset->rbx = b_reg->r_rbx;
|
|
||||||
l_regset->r11 = b_reg->r_r11;
|
|
||||||
l_regset->r10 = b_reg->r_r10;
|
|
||||||
l_regset->r9 = b_reg->r_r9;
|
|
||||||
l_regset->r8 = b_reg->r_r8;
|
|
||||||
l_regset->rax = b_reg->r_rax;
|
|
||||||
l_regset->rcx = b_reg->r_rcx;
|
|
||||||
l_regset->rdx = b_reg->r_rdx;
|
|
||||||
l_regset->rsi = b_reg->r_rsi;
|
|
||||||
l_regset->rdi = b_reg->r_rdi;
|
|
||||||
l_regset->orig_rax = b_reg->r_rax;
|
|
||||||
l_regset->rip = b_reg->r_rip;
|
|
||||||
l_regset->cs = b_reg->r_cs;
|
|
||||||
l_regset->eflags = b_reg->r_rflags;
|
|
||||||
l_regset->rsp = b_reg->r_rsp;
|
|
||||||
l_regset->ss = b_reg->r_ss;
|
|
||||||
l_regset->fs_base = 0;
|
|
||||||
l_regset->gs_base = 0;
|
|
||||||
l_regset->ds = b_reg->r_ds;
|
|
||||||
l_regset->es = b_reg->r_es;
|
|
||||||
l_regset->fs = b_reg->r_fs;
|
|
||||||
l_regset->gs = b_reg->r_gs;
|
|
||||||
}
|
|
||||||
|
|
||||||
static void
|
static void
|
||||||
map_regs_from_linux(struct reg *b_reg, struct linux_pt_reg *l_reg)
|
map_regs_from_linux(struct reg *b_reg, struct linux_pt_reg *l_reg)
|
||||||
{
|
{
|
||||||
|
@ -741,8 +741,8 @@ struct sysentvec elf_linux_sysvec = {
|
|||||||
.sv_name = "Linux ELF64",
|
.sv_name = "Linux ELF64",
|
||||||
.sv_coredump = elf64_coredump,
|
.sv_coredump = elf64_coredump,
|
||||||
.sv_elf_core_osabi = ELFOSABI_NONE,
|
.sv_elf_core_osabi = ELFOSABI_NONE,
|
||||||
.sv_elf_core_abi_vendor = FREEBSD_ABI_VENDOR,
|
.sv_elf_core_abi_vendor = LINUX_ABI_VENDOR,
|
||||||
.sv_elf_core_prepare_notes = elf64_prepare_notes,
|
.sv_elf_core_prepare_notes = linux64_prepare_notes,
|
||||||
.sv_imgact_try = linux_exec_imgact_try,
|
.sv_imgact_try = linux_exec_imgact_try,
|
||||||
.sv_minsigstksz = LINUX_MINSIGSTKSZ,
|
.sv_minsigstksz = LINUX_MINSIGSTKSZ,
|
||||||
.sv_minuser = VM_MIN_ADDRESS,
|
.sv_minuser = VM_MIN_ADDRESS,
|
||||||
|
@ -912,9 +912,9 @@ struct sysentvec elf_linux_sysvec = {
|
|||||||
.sv_szsigcode = &linux_szsigcode,
|
.sv_szsigcode = &linux_szsigcode,
|
||||||
.sv_name = "Linux ELF32",
|
.sv_name = "Linux ELF32",
|
||||||
.sv_coredump = elf32_coredump,
|
.sv_coredump = elf32_coredump,
|
||||||
.sv_elf_core_osabi = ELFOSABI_FREEBSD,
|
.sv_elf_core_osabi = ELFOSABI_NONE,
|
||||||
.sv_elf_core_abi_vendor = FREEBSD_ABI_VENDOR,
|
.sv_elf_core_abi_vendor = LINUX_ABI_VENDOR,
|
||||||
.sv_elf_core_prepare_notes = elf32_prepare_notes,
|
.sv_elf_core_prepare_notes = linux32_prepare_notes,
|
||||||
.sv_imgact_try = linux_exec_imgact_try,
|
.sv_imgact_try = linux_exec_imgact_try,
|
||||||
.sv_minsigstksz = LINUX_MINSIGSTKSZ,
|
.sv_minsigstksz = LINUX_MINSIGSTKSZ,
|
||||||
.sv_minuser = VM_MIN_ADDRESS,
|
.sv_minuser = VM_MIN_ADDRESS,
|
||||||
|
@ -417,8 +417,8 @@ struct sysentvec elf_linux_sysvec = {
|
|||||||
.sv_name = "Linux ELF64",
|
.sv_name = "Linux ELF64",
|
||||||
.sv_coredump = elf64_coredump,
|
.sv_coredump = elf64_coredump,
|
||||||
.sv_elf_core_osabi = ELFOSABI_NONE,
|
.sv_elf_core_osabi = ELFOSABI_NONE,
|
||||||
.sv_elf_core_abi_vendor = FREEBSD_ABI_VENDOR,
|
.sv_elf_core_abi_vendor = LINUX_ABI_VENDOR,
|
||||||
.sv_elf_core_prepare_notes = elf64_prepare_notes,
|
.sv_elf_core_prepare_notes = linux64_prepare_notes,
|
||||||
.sv_imgact_try = linux_exec_imgact_try,
|
.sv_imgact_try = linux_exec_imgact_try,
|
||||||
.sv_minsigstksz = LINUX_MINSIGSTKSZ,
|
.sv_minsigstksz = LINUX_MINSIGSTKSZ,
|
||||||
.sv_minuser = VM_MIN_ADDRESS,
|
.sv_minuser = VM_MIN_ADDRESS,
|
||||||
|
294
sys/compat/linux/linux_elf.c
Normal file
294
sys/compat/linux/linux_elf.c
Normal file
@ -0,0 +1,294 @@
|
|||||||
|
/*-
|
||||||
|
* SPDX-License-Identifier: BSD-3-Clause
|
||||||
|
*
|
||||||
|
* Copyright (c) 2021 Edward Tomasz Napierala <trasz@FreeBSD.org>
|
||||||
|
* Copyright (c) 2018 Chuck Tuffli
|
||||||
|
* Copyright (c) 2017 Dell EMC
|
||||||
|
* Copyright (c) 2000 David O'Brien
|
||||||
|
* Copyright (c) 1995-1996 Søren Schmidt
|
||||||
|
* Copyright (c) 1996 Peter Wemm
|
||||||
|
* All rights reserved.
|
||||||
|
*
|
||||||
|
* This software was developed by the University of Cambridge Computer
|
||||||
|
* Laboratory as part of the CHERI for Hypervisors and Operating Systems
|
||||||
|
* (CHaOS) project, funded by EPSRC grant EP/V000292/1.
|
||||||
|
*
|
||||||
|
* Redistribution and use in source and binary forms, with or without
|
||||||
|
* modification, are permitted provided that the following conditions
|
||||||
|
* are met:
|
||||||
|
* 1. Redistributions of source code must retain the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer
|
||||||
|
* in this position and unchanged.
|
||||||
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer in the
|
||||||
|
* documentation and/or other materials provided with the distribution.
|
||||||
|
* 3. The name of the author may not be used to endorse or promote products
|
||||||
|
* derived from this software without specific prior written permission
|
||||||
|
*
|
||||||
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||||
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||||
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||||
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||||
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||||
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||||
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||||
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||||
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||||
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <sys/cdefs.h>
|
||||||
|
__FBSDID("$FreeBSD$");
|
||||||
|
|
||||||
|
#include <sys/param.h>
|
||||||
|
#include <sys/systm.h>
|
||||||
|
#include <sys/exec.h>
|
||||||
|
#include <sys/imgact.h>
|
||||||
|
#include <sys/imgact_elf.h>
|
||||||
|
#include <sys/kernel.h>
|
||||||
|
#include <sys/proc.h>
|
||||||
|
#include <sys/procfs.h>
|
||||||
|
#include <sys/ptrace.h>
|
||||||
|
#include <sys/sbuf.h>
|
||||||
|
#include <sys/sysent.h>
|
||||||
|
#include <sys/user.h>
|
||||||
|
#include <sys/vnode.h>
|
||||||
|
|
||||||
|
#include <machine/elf.h>
|
||||||
|
|
||||||
|
#if __ELF_WORD_SIZE == 32
|
||||||
|
#define linux_pt_regset linux_pt_regset32
|
||||||
|
#define bsd_to_linux_regset bsd_to_linux_regset32
|
||||||
|
#include <machine/../linux32/linux.h>
|
||||||
|
#else
|
||||||
|
#include <machine/../linux/linux.h>
|
||||||
|
#endif
|
||||||
|
#include <compat/linux/linux_elf.h>
|
||||||
|
#include <compat/linux/linux_emul.h>
|
||||||
|
#include <compat/linux/linux_misc.h>
|
||||||
|
|
||||||
|
/* This adds "linux32_" and "linux64_" prefixes. */
|
||||||
|
#define __linuxN(x) __CONCAT(__CONCAT(__CONCAT(linux,__ELF_WORD_SIZE),_),x)
|
||||||
|
|
||||||
|
#define LINUX_NT_AUXV 6
|
||||||
|
|
||||||
|
static void __linuxN(note_fpregset)(void *, struct sbuf *, size_t *);
|
||||||
|
static void __linuxN(note_prpsinfo)(void *, struct sbuf *, size_t *);
|
||||||
|
static void __linuxN(note_prstatus)(void *, struct sbuf *, size_t *);
|
||||||
|
static void __linuxN(note_threadmd)(void *, struct sbuf *, size_t *);
|
||||||
|
static void __linuxN(note_nt_auxv)(void *, struct sbuf *, size_t *);
|
||||||
|
|
||||||
|
void
|
||||||
|
__linuxN(prepare_notes)(struct thread *td, struct note_info_list *list,
|
||||||
|
size_t *sizep)
|
||||||
|
{
|
||||||
|
struct proc *p;
|
||||||
|
struct thread *thr;
|
||||||
|
size_t size;
|
||||||
|
|
||||||
|
p = td->td_proc;
|
||||||
|
size = 0;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* To have the debugger select the right thread (LWP) as the initial
|
||||||
|
* thread, we dump the state of the thread passed to us in td first.
|
||||||
|
* This is the thread that causes the core dump and thus likely to
|
||||||
|
* be the right thread one wants to have selected in the debugger.
|
||||||
|
*/
|
||||||
|
thr = td;
|
||||||
|
while (thr != NULL) {
|
||||||
|
size += __elfN(register_note)(td, list,
|
||||||
|
NT_PRSTATUS, __linuxN(note_prstatus), thr);
|
||||||
|
size += __elfN(register_note)(td, list,
|
||||||
|
NT_PRPSINFO, __linuxN(note_prpsinfo), p);
|
||||||
|
size += __elfN(register_note)(td, list,
|
||||||
|
LINUX_NT_AUXV, __linuxN(note_nt_auxv), p);
|
||||||
|
size += __elfN(register_note)(td, list,
|
||||||
|
NT_FPREGSET, __linuxN(note_fpregset), thr);
|
||||||
|
size += __elfN(register_note)(td, list,
|
||||||
|
-1, __linuxN(note_threadmd), thr);
|
||||||
|
|
||||||
|
thr = thr == td ? TAILQ_FIRST(&p->p_threads) :
|
||||||
|
TAILQ_NEXT(thr, td_plist);
|
||||||
|
if (thr == td)
|
||||||
|
thr = TAILQ_NEXT(thr, td_plist);
|
||||||
|
}
|
||||||
|
|
||||||
|
*sizep = size;
|
||||||
|
}
|
||||||
|
|
||||||
|
typedef struct linux_elf_prstatus linux_elf_prstatus_t;
|
||||||
|
#if __ELF_WORD_SIZE == 32
|
||||||
|
typedef struct prpsinfo32 linux_elf_prpsinfo_t;
|
||||||
|
typedef struct fpreg32 linux_elf_prfpregset_t;
|
||||||
|
#else
|
||||||
|
typedef prpsinfo_t linux_elf_prpsinfo_t;
|
||||||
|
typedef prfpregset_t linux_elf_prfpregset_t;
|
||||||
|
#endif
|
||||||
|
|
||||||
|
static void
|
||||||
|
__linuxN(note_prpsinfo)(void *arg, struct sbuf *sb, size_t *sizep)
|
||||||
|
{
|
||||||
|
struct sbuf sbarg;
|
||||||
|
size_t len;
|
||||||
|
char *cp, *end;
|
||||||
|
struct proc *p;
|
||||||
|
linux_elf_prpsinfo_t *psinfo;
|
||||||
|
int error;
|
||||||
|
|
||||||
|
p = arg;
|
||||||
|
if (sb != NULL) {
|
||||||
|
KASSERT(*sizep == sizeof(*psinfo), ("invalid size"));
|
||||||
|
psinfo = malloc(sizeof(*psinfo), M_TEMP, M_ZERO | M_WAITOK);
|
||||||
|
psinfo->pr_version = PRPSINFO_VERSION;
|
||||||
|
psinfo->pr_psinfosz = sizeof(linux_elf_prpsinfo_t);
|
||||||
|
strlcpy(psinfo->pr_fname, p->p_comm, sizeof(psinfo->pr_fname));
|
||||||
|
PROC_LOCK(p);
|
||||||
|
if (p->p_args != NULL) {
|
||||||
|
len = sizeof(psinfo->pr_psargs) - 1;
|
||||||
|
if (len > p->p_args->ar_length)
|
||||||
|
len = p->p_args->ar_length;
|
||||||
|
memcpy(psinfo->pr_psargs, p->p_args->ar_args, len);
|
||||||
|
PROC_UNLOCK(p);
|
||||||
|
error = 0;
|
||||||
|
} else {
|
||||||
|
_PHOLD(p);
|
||||||
|
PROC_UNLOCK(p);
|
||||||
|
sbuf_new(&sbarg, psinfo->pr_psargs,
|
||||||
|
sizeof(psinfo->pr_psargs), SBUF_FIXEDLEN);
|
||||||
|
error = proc_getargv(curthread, p, &sbarg);
|
||||||
|
PRELE(p);
|
||||||
|
if (sbuf_finish(&sbarg) == 0)
|
||||||
|
len = sbuf_len(&sbarg) - 1;
|
||||||
|
else
|
||||||
|
len = sizeof(psinfo->pr_psargs) - 1;
|
||||||
|
sbuf_delete(&sbarg);
|
||||||
|
}
|
||||||
|
if (error || len == 0)
|
||||||
|
strlcpy(psinfo->pr_psargs, p->p_comm,
|
||||||
|
sizeof(psinfo->pr_psargs));
|
||||||
|
else {
|
||||||
|
KASSERT(len < sizeof(psinfo->pr_psargs),
|
||||||
|
("len is too long: %zu vs %zu", len,
|
||||||
|
sizeof(psinfo->pr_psargs)));
|
||||||
|
cp = psinfo->pr_psargs;
|
||||||
|
end = cp + len - 1;
|
||||||
|
for (;;) {
|
||||||
|
cp = memchr(cp, '\0', end - cp);
|
||||||
|
if (cp == NULL)
|
||||||
|
break;
|
||||||
|
*cp = ' ';
|
||||||
|
}
|
||||||
|
}
|
||||||
|
psinfo->pr_pid = p->p_pid;
|
||||||
|
sbuf_bcat(sb, psinfo, sizeof(*psinfo));
|
||||||
|
free(psinfo, M_TEMP);
|
||||||
|
}
|
||||||
|
*sizep = sizeof(*psinfo);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
__linuxN(note_prstatus)(void *arg, struct sbuf *sb, size_t *sizep)
|
||||||
|
{
|
||||||
|
struct thread *td;
|
||||||
|
linux_elf_prstatus_t *status;
|
||||||
|
#if __ELF_WORD_SIZE == 32
|
||||||
|
struct reg32 pr_reg;
|
||||||
|
#else
|
||||||
|
struct reg pr_reg;
|
||||||
|
#endif
|
||||||
|
|
||||||
|
td = arg;
|
||||||
|
if (sb != NULL) {
|
||||||
|
KASSERT(*sizep == sizeof(*status), ("invalid size"));
|
||||||
|
status = malloc(sizeof(*status), M_TEMP, M_ZERO | M_WAITOK);
|
||||||
|
|
||||||
|
/*
|
||||||
|
* XXX: Some fields missing.
|
||||||
|
*/
|
||||||
|
status->pr_cursig = td->td_proc->p_sig;
|
||||||
|
status->pr_pid = td->td_tid;
|
||||||
|
|
||||||
|
#if __ELF_WORD_SIZE == 32
|
||||||
|
fill_regs32(td, &pr_reg);
|
||||||
|
#else
|
||||||
|
fill_regs(td, &pr_reg);
|
||||||
|
#endif
|
||||||
|
bsd_to_linux_regset(&pr_reg, &status->pr_reg);
|
||||||
|
sbuf_bcat(sb, status, sizeof(*status));
|
||||||
|
free(status, M_TEMP);
|
||||||
|
}
|
||||||
|
*sizep = sizeof(*status);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
__linuxN(note_fpregset)(void *arg, struct sbuf *sb, size_t *sizep)
|
||||||
|
{
|
||||||
|
struct thread *td;
|
||||||
|
linux_elf_prfpregset_t *fpregset;
|
||||||
|
|
||||||
|
td = arg;
|
||||||
|
if (sb != NULL) {
|
||||||
|
KASSERT(*sizep == sizeof(*fpregset), ("invalid size"));
|
||||||
|
fpregset = malloc(sizeof(*fpregset), M_TEMP, M_ZERO | M_WAITOK);
|
||||||
|
#if __ELF_WORD_SIZE == 32
|
||||||
|
fill_fpregs32(td, fpregset);
|
||||||
|
#else
|
||||||
|
fill_fpregs(td, fpregset);
|
||||||
|
#endif
|
||||||
|
sbuf_bcat(sb, fpregset, sizeof(*fpregset));
|
||||||
|
free(fpregset, M_TEMP);
|
||||||
|
}
|
||||||
|
*sizep = sizeof(*fpregset);
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Allow for MD specific notes, as well as any MD
|
||||||
|
* specific preparations for writing MI notes.
|
||||||
|
*/
|
||||||
|
static void
|
||||||
|
__linuxN(note_threadmd)(void *arg, struct sbuf *sb, size_t *sizep)
|
||||||
|
{
|
||||||
|
struct thread *td;
|
||||||
|
void *buf;
|
||||||
|
size_t size;
|
||||||
|
|
||||||
|
td = arg;
|
||||||
|
size = *sizep;
|
||||||
|
if (size != 0 && sb != NULL)
|
||||||
|
buf = malloc(size, M_TEMP, M_ZERO | M_WAITOK);
|
||||||
|
else
|
||||||
|
buf = NULL;
|
||||||
|
size = 0;
|
||||||
|
__elfN(dump_thread)(td, buf, &size);
|
||||||
|
KASSERT(sb == NULL || *sizep == size, ("invalid size"));
|
||||||
|
if (size != 0 && sb != NULL)
|
||||||
|
sbuf_bcat(sb, buf, size);
|
||||||
|
free(buf, M_TEMP);
|
||||||
|
*sizep = size;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
__linuxN(note_nt_auxv)(void *arg, struct sbuf *sb, size_t *sizep)
|
||||||
|
{
|
||||||
|
struct proc *p;
|
||||||
|
size_t size;
|
||||||
|
|
||||||
|
p = arg;
|
||||||
|
if (sb == NULL) {
|
||||||
|
size = 0;
|
||||||
|
sb = sbuf_new(NULL, NULL, LINUX_AT_COUNT * sizeof(Elf_Auxinfo),
|
||||||
|
SBUF_FIXEDLEN);
|
||||||
|
sbuf_set_drain(sb, sbuf_count_drain, &size);
|
||||||
|
PHOLD(p);
|
||||||
|
proc_getauxv(curthread, p, sb);
|
||||||
|
PRELE(p);
|
||||||
|
sbuf_finish(sb);
|
||||||
|
sbuf_delete(sb);
|
||||||
|
*sizep = size;
|
||||||
|
} else {
|
||||||
|
PHOLD(p);
|
||||||
|
proc_getauxv(curthread, p, sb);
|
||||||
|
PRELE(p);
|
||||||
|
}
|
||||||
|
}
|
56
sys/compat/linux/linux_elf.h
Normal file
56
sys/compat/linux/linux_elf.h
Normal file
@ -0,0 +1,56 @@
|
|||||||
|
/*-
|
||||||
|
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
|
||||||
|
*
|
||||||
|
* Copyright (c) 2018 Chuck Tuffli
|
||||||
|
*
|
||||||
|
* Redistribution and use in source and binary forms, with or without
|
||||||
|
* modification, are permitted provided that the following conditions
|
||||||
|
* are met:
|
||||||
|
* 1. Redistributions of source code must retain the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer.
|
||||||
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer in the
|
||||||
|
* documentation and/or other materials provided with the distribution.
|
||||||
|
*
|
||||||
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
||||||
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||||
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||||
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
||||||
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||||
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||||
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||||
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||||
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||||
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||||
|
* SUCH DAMAGE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef _COMPAT_LINUX_ELF_H_
|
||||||
|
#define _COMPAT_LINUX_ELF_H_
|
||||||
|
|
||||||
|
struct l_elf_siginfo {
|
||||||
|
l_int si_signo;
|
||||||
|
l_int si_code;
|
||||||
|
l_int si_errno;
|
||||||
|
};
|
||||||
|
|
||||||
|
typedef struct linux_pt_regset l_elf_gregset_t;
|
||||||
|
|
||||||
|
struct linux_elf_prstatus {
|
||||||
|
struct l_elf_siginfo pr_info;
|
||||||
|
l_short pr_cursig;
|
||||||
|
l_ulong pr_sigpend;
|
||||||
|
l_ulong pr_sighold;
|
||||||
|
l_pid_t pr_pid;
|
||||||
|
l_pid_t pr_ppid;
|
||||||
|
l_pid_t pr_pgrp;
|
||||||
|
l_pid_t pr_sid;
|
||||||
|
l_timeval pr_utime;
|
||||||
|
l_timeval pr_stime;
|
||||||
|
l_timeval pr_cutime;
|
||||||
|
l_timeval pr_cstime;
|
||||||
|
l_elf_gregset_t pr_reg;
|
||||||
|
l_int pr_fpvalid;
|
||||||
|
};
|
||||||
|
|
||||||
|
#endif
|
38
sys/compat/linux/linux_elf32.c
Normal file
38
sys/compat/linux/linux_elf32.c
Normal file
@ -0,0 +1,38 @@
|
|||||||
|
/*-
|
||||||
|
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
|
||||||
|
*
|
||||||
|
* Copyright (c) 2021 Edward Tomasz Napierala <trasz@FreeBSD.org>
|
||||||
|
* Copyright (c) 2002 Doug Rabson
|
||||||
|
* All rights reserved.
|
||||||
|
*
|
||||||
|
* This software was developed by the University of Cambridge Computer
|
||||||
|
* Laboratory as part of the CHERI for Hypervisors and Operating Systems
|
||||||
|
* (CHaOS) project, funded by EPSRC grant EP/V000292/1.
|
||||||
|
*
|
||||||
|
* Redistribution and use in source and binary forms, with or without
|
||||||
|
* modification, are permitted provided that the following conditions
|
||||||
|
* are met:
|
||||||
|
* 1. Redistributions of source code must retain the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer.
|
||||||
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer in the
|
||||||
|
* documentation and/or other materials provided with the distribution.
|
||||||
|
*
|
||||||
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
||||||
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||||
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||||
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
||||||
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||||
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||||
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||||
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||||
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||||
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||||
|
* SUCH DAMAGE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <sys/cdefs.h>
|
||||||
|
__FBSDID("$FreeBSD$");
|
||||||
|
|
||||||
|
#define __ELF_WORD_SIZE 32
|
||||||
|
#include <compat/linux/linux_elf.c>
|
38
sys/compat/linux/linux_elf64.c
Normal file
38
sys/compat/linux/linux_elf64.c
Normal file
@ -0,0 +1,38 @@
|
|||||||
|
/*-
|
||||||
|
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
|
||||||
|
*
|
||||||
|
* Copyright (c) 2021 Edward Tomasz Napierala <trasz@FreeBSD.org>
|
||||||
|
* Copyright (c) 2002 Doug Rabson
|
||||||
|
* All rights reserved.
|
||||||
|
*
|
||||||
|
* This software was developed by the University of Cambridge Computer
|
||||||
|
* Laboratory as part of the CHERI for Hypervisors and Operating Systems
|
||||||
|
* (CHaOS) project, funded by EPSRC grant EP/V000292/1.
|
||||||
|
*
|
||||||
|
* Redistribution and use in source and binary forms, with or without
|
||||||
|
* modification, are permitted provided that the following conditions
|
||||||
|
* are met:
|
||||||
|
* 1. Redistributions of source code must retain the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer.
|
||||||
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer in the
|
||||||
|
* documentation and/or other materials provided with the distribution.
|
||||||
|
*
|
||||||
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
||||||
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||||
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||||
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
||||||
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||||
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||||
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||||
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||||
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||||
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||||
|
* SUCH DAMAGE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <sys/cdefs.h>
|
||||||
|
__FBSDID("$FreeBSD$");
|
||||||
|
|
||||||
|
#define __ELF_WORD_SIZE 64
|
||||||
|
#include <compat/linux/linux_elf.c>
|
@ -33,6 +33,10 @@
|
|||||||
#define _LINUX_EMUL_H_
|
#define _LINUX_EMUL_H_
|
||||||
|
|
||||||
struct image_params;
|
struct image_params;
|
||||||
|
struct note_info_list;
|
||||||
|
|
||||||
|
/* Linux core notes are labeled "CORE" */
|
||||||
|
#define LINUX_ABI_VENDOR "CORE"
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* modeled after similar structure in NetBSD
|
* modeled after similar structure in NetBSD
|
||||||
@ -58,6 +62,8 @@ void linux_on_exec(struct proc *, struct image_params *);
|
|||||||
void linux_thread_dtor(struct thread *);
|
void linux_thread_dtor(struct thread *);
|
||||||
void linux_thread_detach(struct thread *);
|
void linux_thread_detach(struct thread *);
|
||||||
int linux_common_execve(struct thread *, struct image_args *);
|
int linux_common_execve(struct thread *, struct image_args *);
|
||||||
|
void linux32_prepare_notes(struct thread *, struct note_info_list *, size_t *);
|
||||||
|
void linux64_prepare_notes(struct thread *, struct note_info_list *, size_t *);
|
||||||
|
|
||||||
/* process emuldata flags */
|
/* process emuldata flags */
|
||||||
#define LINUX_XDEPR_REQUEUEOP 0x00000001 /* uses deprecated
|
#define LINUX_XDEPR_REQUEUEOP 0x00000001 /* uses deprecated
|
||||||
|
@ -26,6 +26,7 @@ SRCS+= linux_dummy_x86.c
|
|||||||
.endif
|
.endif
|
||||||
.if ${MACHINE_CPUARCH} == "amd64"
|
.if ${MACHINE_CPUARCH} == "amd64"
|
||||||
SRCS+= linux${SFX}_support.s
|
SRCS+= linux${SFX}_support.s
|
||||||
|
SRCS+= linux_elf32.c
|
||||||
.else
|
.else
|
||||||
SRCS+= linux_copyout.c
|
SRCS+= linux_copyout.c
|
||||||
.endif
|
.endif
|
||||||
|
@ -18,6 +18,7 @@ SRCS= linux_fork.c linux_dummy_machdep.c linux_file.c linux_event.c \
|
|||||||
linux_support.s
|
linux_support.s
|
||||||
.if ${MACHINE_CPUARCH} == "amd64"
|
.if ${MACHINE_CPUARCH} == "amd64"
|
||||||
SRCS+= linux_dummy_x86.c
|
SRCS+= linux_dummy_x86.c
|
||||||
|
SRCS+= linux_elf64.c
|
||||||
.endif
|
.endif
|
||||||
DPSRCS= assym.inc linux_genassym.c
|
DPSRCS= assym.inc linux_genassym.c
|
||||||
|
|
||||||
|
Loading…
Reference in New Issue
Block a user