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syscalls: sigsuspend

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Matheus
2024-09-08 10:57:21 -03:00
parent 42cfd8c5a5
commit f012085496
4 changed files with 44 additions and 8 deletions
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kernel-src/arch/x86-64/syscall.asm
+3 -1
View File
@@ -87,6 +87,7 @@ extern syscall_setuid
extern syscall_seteuid
extern syscall_setgid
extern syscall_setegid
extern syscall_sigsuspend
syscalltab:
dq syscall_print
dq syscall_mmap
@@ -176,7 +177,8 @@ dq syscall_setuid
dq syscall_seteuid
dq syscall_setgid
dq syscall_setegid
syscallcount equ 88
dq syscall_sigsuspend
syscallcount equ 89
section .text
global arch_syscall_entry
; on entry:
kernel-src/arch/x86-64/syscalllog.c
+5 -3
View File
@@ -5,7 +5,7 @@
#ifdef SYSCALL_LOGGING
#define SYSCALL_COUNT 88
#define SYSCALL_COUNT 89
#define LOGSTR(x) arch_e9_puts(x)
static char *name[] = {
@@ -96,7 +96,8 @@ static char *name[] = {
"setuid",
"seteuid",
"setgid",
"setegid"
"setegid",
"sigsuspend"
};
static char *args[] = {
@@ -187,7 +188,8 @@ static char *args[] = {
"uid %d", // setuid
"euid %d", // seteuid
"gid %d", // setgid
"egid %d" // setegid
"egid %d", // setegid
"sigset %p" // sigsuspend
};
#endif
kernel-src/sys/syscalls/sigsuspend.c
+26
View File
@@ -0,0 +1,26 @@
#include <kernel/syscalls.h>
#include <kernel/signal.h>
#include <logging.h>
syscallret_t syscall_sigsuspend(context_t *, sigset_t *umask) {
syscallret_t ret = {
.ret = -1
};
sigset_t mask;
sigset_t old;
ret.errno = usercopy_fromuser(&mask, umask, sizeof(sigset_t));
if (ret.errno)
return ret;
signal_changemask(_cpu()->thread, SIG_SETMASK, &mask, &old);
sched_preparesleep(true);
__assert(sched_yield() == SCHED_WAKEUP_REASON_INTERRUPTED);
signal_changemask(_cpu()->thread, SIG_SETMASK, &old, NULL);
ret.errno = EINTR;
return ret;
}
patches/mlibc/jinx-working-patch.patch
+10 -4
View File
@@ -219,10 +219,10 @@ index 0000000..e5b087a
+
diff --git mlibc-workdir/sysdeps/astral/generic/generic.cpp mlibc-workdir/sysdeps/astral/generic/generic.cpp
new file mode 100644
index 0000000..13f1f36
index 0000000..32711c2
--- /dev/null
+++ mlibc-workdir/sysdeps/astral/generic/generic.cpp
@@ -0,0 +1,985 @@
@@ -0,0 +1,990 @@
+#include <bits/ensure.h>
+#include <mlibc/debug.hpp>
+#include <mlibc/all-sysdeps.hpp>
@@ -297,6 +297,11 @@ index 0000000..13f1f36
+ return 0;
+ }
+
+ int sys_sigsuspend(const sigset_t *set) {
+ long ret;
+ return syscall(SYSCALL_SIGSUSPEND, &ret, (uint64_t)set);
+ }
+
+ int sys_vm_protect(void *pointer, size_t size, int prot) {
+ long ret;
+ return syscall(SYSCALL_MPROTECT, &ret, (uint64_t)pointer, size, prot);
@@ -1227,10 +1232,10 @@ index 0000000..990eca0
+#endif
diff --git mlibc-workdir/sysdeps/astral/include/astral/syscall.h mlibc-workdir/sysdeps/astral/include/astral/syscall.h
new file mode 100644
index 0000000..90516f7
index 0000000..7772e74
--- /dev/null
+++ mlibc-workdir/sysdeps/astral/include/astral/syscall.h
@@ -0,0 +1,111 @@
@@ -0,0 +1,112 @@
+#ifndef _SYSCALL_H_INCLUDE
+#define _SYSCALL_H_INCLUDE
+
@@ -1322,6 +1327,7 @@ index 0000000..90516f7
+#define SYSCALL_SETEUID 85
+#define SYSCALL_SETGID 86
+#define SYSCALL_SETEGID 87
+#define SYSCALL_SIGSUSPEND 88
+
+#include <stddef.h>
+#include <stdint.h>