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Make ps_strings in struct image_params into a pointer.

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This is a prepratory commit for D24407.

Reviewed by:	kib
Obtained from:	CheriBSD
Sponsored by:	DARPA
This commit is contained in:
Brooks Davis 2020-04-15 20:21:30 +00:00
parent da813b4d95
commit 397df744f9
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=359987
6 changed files with 6 additions and 4 deletions
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2
sys/amd64/ia32/ia32_signal.c
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@ -961,7 +961,7 @@ ia32_setregs(struct thread *td, struct image_params *imgp, uintptr_t stack)
regs->tf_rflags = PSL_USER | saved_rflags;
regs->tf_ss = _udatasel;
regs->tf_cs = _ucode32sel;
regs->tf_rbx = imgp->ps_strings;
regs->tf_rbx = (register_t)imgp->ps_strings;
regs->tf_ds = _udatasel;
regs->tf_es = _udatasel;
regs->tf_fs = _ufssel;

2
sys/amd64/linux32/linux32_sysvec.c
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@ -708,7 +708,7 @@ linux_exec_setregs(struct thread *td, struct image_params *imgp,
regs->tf_ss = _udatasel;
regs->tf_flags = TF_HASSEGS;
regs->tf_cs = _ucode32sel;
regs->tf_rbx = imgp->ps_strings;
regs->tf_rbx = (register_t)imgp->ps_strings;
fpstate_drop(td);

1
sys/compat/freebsd32/freebsd32_misc.c
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@ -3137,6 +3137,7 @@ freebsd32_copyout_strings(struct image_params *imgp, uintptr_t *stack_base)
execpath_len = 0;
arginfo = (struct freebsd32_ps_strings *)curproc->p_sysent->
sv_psstrings;
imgp->ps_strings = arginfo;
if (imgp->proc->p_sysent->sv_sigcode_base == 0)
szsigcode = *(imgp->proc->p_sysent->sv_szsigcode);
else

2
sys/kern/imgact_aout.c
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@ -200,7 +200,7 @@ exec_aout_imgact(struct image_params *imgp)
file_offset = 0;
/* Pass PS_STRINGS for BSD/OS binaries only. */
if (N_GETMID(*a_out) == MID_ZERO)
imgp->ps_strings = aout_sysvec.sv_psstrings;
imgp->ps_strings = (void *)aout_sysvec.sv_psstrings;
break;
default:
/* NetBSD compatibility */

1
sys/kern/kern_exec.c
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@ -1546,6 +1546,7 @@ exec_copyout_strings(struct image_params *imgp, uintptr_t *stack_base)
p = imgp->proc;
szsigcode = 0;
arginfo = (struct ps_strings *)p->p_sysent->sv_psstrings;
imgp->ps_strings = arginfo;
if (p->p_sysent->sv_sigcode_base == 0) {
if (p->p_sysent->sv_szsigcode != NULL)
szsigcode = *(p->p_sysent->sv_szsigcode);

2
sys/sys/imgact.h
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@ -75,7 +75,7 @@ struct image_params {
char *interpreter_name; /* name of the interpreter */
void *auxargs; /* ELF Auxinfo structure pointer */
struct sf_buf *firstpage; /* first page that we mapped */
unsigned long ps_strings; /* PS_STRINGS for BSD/OS binaries */
void *ps_strings; /* pointer to ps_string (user space) */
struct image_args *args; /* system call arguments */
struct sysentvec *sysent; /* system entry vector */
char *execpath;