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fix potentially unitialized value

This commit is contained in:
flysand7 2023-08-15 15:50:52 +11:00
parent 50fe56949f
commit 1beb40051e
1 changed files with 16 additions and 8 deletions
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24
src/include/linux/sys/syscall.h
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@ -24,36 +24,36 @@
#define _SYSCALL_CONCAT_(a,b) a ## b
// Creates an expression of the sort `_SYSCALL<number of params>(<params>)`
#define syscall(n, ...) _SYSCALL_CONCAT(_SYSCALL, _SYSCALL_NARGS(__VA_ARGS__))(n, __VA_ARGS__)
#define syscall(n, ...) _SYSCALL_CONCAT(_SYSCALL, _SYSCALL_NARGS(__VA_ARGS__))(n, ## __VA_ARGS__)
static inline i64 _syscall0(i64 n) {
i64 ret;
i64 ret = 0;
asm volatile("syscall" : "=a"(ret) : "a"(n) : "rcx", "r11", "memory");
return ret;
}
static inline i64 _syscall1(i64 n, i64 a1) {
i64 ret;
i64 ret = 0;
asm volatile("syscall" : "=a"(ret) : "a"(n), "D"(a1) : "rcx", "r11", "memory");
return ret;
}
static inline i64 _syscall2(i64 n, i64 a1, i64 a2) {
i64 ret;
i64 ret = 0;
asm volatile("syscall" : "=a"(ret) : "a"(n), "D"(a1), "S"(a2)
: "rcx", "r11", "memory");
return ret;
}
static inline i64 _syscall3(i64 n, i64 a1, i64 a2, i64 a3) {
i64 ret;
i64 ret = 0;
asm volatile("syscall" : "=a"(ret) : "a"(n), "D"(a1), "S"(a2),
"d"(a3) : "rcx", "r11", "memory");
return ret;
}
static inline i64 _syscall4(i64 n, i64 a1, i64 a2, i64 a3, i64 a4) {
i64 ret;
i64 ret = 0;
register i64 r10 asm("r10") = a4;
asm volatile("syscall" : "=a"(ret) : "a"(n), "D"(a1), "S"(a2),
"d"(a3), "r"(r10): "rcx", "r11", "memory");
@ -61,7 +61,7 @@ static inline i64 _syscall4(i64 n, i64 a1, i64 a2, i64 a3, i64 a4) {
}
static inline i64 _syscall5(i64 n, i64 a1, i64 a2, i64 a3, i64 a4, i64 a5) {
i64 ret;
i64 ret = 0;
register i64 r10 asm("r10") = a4;
register i64 r8 asm("r8") = a5;
asm volatile("syscall" : "=a"(ret) : "a"(n), "D"(a1), "S"(a2),
@ -70,7 +70,7 @@ static inline i64 _syscall5(i64 n, i64 a1, i64 a2, i64 a3, i64 a4, i64 a5) {
}
static inline i64 _syscall6(i64 n, i64 a1, i64 a2, i64 a3, i64 a4, i64 a5, i64 a6) {
i64 ret;
i64 ret = 0;
register i64 r10 asm("r10") = a4;
register i64 r8 asm("r8") = a5;
register i64 r9 asm("r9") = a6;
@ -404,6 +404,10 @@ static inline i64 sys_munmap(void *addr, u64 len) {
return syscall(SYS_munmap, addr, len);
}
static inline i64 sys_clone(u64 flags, void *stack, int *parent_tid, int *child_tid, u64 tls) {
return syscall(SYS_clone, flags, stack, parent_tid, child_tid, tls);
}
_Noreturn static inline void sys_exit(int code) {
syscall(SYS_exit, code);
__builtin_unreachable();
@ -416,3 +420,7 @@ static inline i64 sys_arch_prctl_set(int code, u64 value) {
static inline i64 sys_arch_prctl_get(int code, u64 *value) {
return syscall(SYS_arch_prctl, code, value);
}
static inline i64 sys_gettid() {
return syscall(SYS_gettid);
}