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Make minor improvements

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This commit is contained in:
Justine Tunney 2020-12-19 11:21:04 -08:00
parent 1fc91f3580
commit b562d6fdb3
41 changed files with 1948 additions and 92 deletions
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28
libc/calls/getsid.c Normal file
View file

@ -0,0 +1,28 @@
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ This program is free software; you can redistribute it and/or modify │
│ it under the terms of the GNU General Public License as published by │
│ the Free Software Foundation; version 2 of the License. │
│ │
│ This program is distributed in the hope that it will be useful, but │
│ WITHOUT ANY WARRANTY; without even the implied warranty of │
│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
│ General Public License for more details. │
│ │
│ You should have received a copy of the GNU General Public License │
│ along with this program; if not, write to the Free Software │
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
│ 02110-1301 USA │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/calls.h"
#include "libc/calls/internal.h"
/**
* Creates session and sets the process group id.
*/
uint32_t getsid(int pid) {
return getsid$sysv(pid);
}

2
libc/calls/internal.h
View file

@ -180,8 +180,10 @@ i64 write$sysv(i32, const void *, u64) hidden;
int getitimer$sysv(i32, struct itimerval *) hidden;
int setresgid$sysv(uint32_t, uint32_t, uint32_t) hidden;
int setresuid$sysv(uint32_t, uint32_t, uint32_t) hidden;
int setsid$sysv(void) hidden;
u32 getgid$sysv(void) hidden;
u32 getpid$sysv(void) hidden;
u32 getsid$sysv(int) hidden;
u32 gettid$sysv(void) hidden;
u32 getuid$sysv(void) hidden;
void *mmap$sysv(void *, u64, u32, u32, i64, i64) hidden;

1
libc/calls/setegid.S
View file

@ -26,6 +26,7 @@
/ @see setgid(), getauxval(AT_SECURE)
setegid:push %rbp
mov %rsp,%rbp
.profilable
mov %edi,%esi
mov $-1,%edi
call setregid

1
libc/calls/seteuid.S
View file

@ -26,6 +26,7 @@
/ @see setuid(), getauxval(AT_SECURE)
seteuid:push %rbp
mov %rsp,%rbp
.profilable
mov %edi,%esi
mov $-1,%edi
call setreuid

28
libc/calls/setsid.c Normal file
View file

@ -0,0 +1,28 @@
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ This program is free software; you can redistribute it and/or modify │
│ it under the terms of the GNU General Public License as published by │
│ the Free Software Foundation; version 2 of the License. │
│ │
│ This program is distributed in the hope that it will be useful, but │
│ WITHOUT ANY WARRANTY; without even the implied warranty of │
│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
│ General Public License for more details. │
│ │
│ You should have received a copy of the GNU General Public License │
│ along with this program; if not, write to the Free Software │
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
│ 02110-1301 USA │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/calls.h"
#include "libc/calls/internal.h"
/**
* Creates session and sets the process group id.
*/
int setsid(void) {
return setsid$sysv();
}

11
libc/calls/sigenter.S
View file

@ -34,20 +34,15 @@
__sigenter:
push %rbp
mov %rsp,%rbp
push %rbx
push %rbx
ezlea _base,bx
.profilable
ezlea g_sighandrvas,ax
and $NSIG-1,%edi
mov (%rax,%rdi,4),%eax
mov g_sighandrvas(,%rdi,4),%eax
cmp $kSigactionMinRva,%eax
jl 2f
add %rbx,%rax
lea _base(%rax),%eax
call *%rax
mov $1,%eax
1: pop %rbx
leave
1: leave
ret
2: xor %eax,%eax
jmp 1b