diff options
Diffstat (limited to 'src/internal')
-rw-r--r-- | src/internal/i386/syscall.s | 21 | ||||
-rw-r--r-- | src/internal/syscall.c | 11 | ||||
-rw-r--r-- | src/internal/syscall_ret.c | 11 | ||||
-rw-r--r-- | src/internal/x86_64/syscall.s | 14 |
4 files changed, 46 insertions, 11 deletions
diff --git a/src/internal/i386/syscall.s b/src/internal/i386/syscall.s new file mode 100644 index 00000000..5b19a1b8 --- /dev/null +++ b/src/internal/i386/syscall.s @@ -0,0 +1,21 @@ +.global __syscall +.type __syscall,%function +__syscall: + pushl %ebx + pushl %esi + pushl %edi + pushl %ebp + movl 20(%esp),%eax + movl 24(%esp),%ebx + movl 28(%esp),%ecx + movl 32(%esp),%edx + movl 36(%esp),%esi + movl 40(%esp),%edi + movl 44(%esp),%ebp + int $128 + popl %ebp + popl %edi + popl %esi + popl %ebx + ret +.size __syscall,.-__syscall diff --git a/src/internal/syscall.c b/src/internal/syscall.c index 4f159e0b..e69de29b 100644 --- a/src/internal/syscall.c +++ b/src/internal/syscall.c @@ -1,11 +0,0 @@ -#include <errno.h> -#include <unistd.h> - -long __syscall_ret(unsigned long r) -{ - if (r >= (unsigned long)-1 - 4096) { - errno = -(long)r; - return -1; - } - return (long)r; -} diff --git a/src/internal/syscall_ret.c b/src/internal/syscall_ret.c new file mode 100644 index 00000000..4f159e0b --- /dev/null +++ b/src/internal/syscall_ret.c @@ -0,0 +1,11 @@ +#include <errno.h> +#include <unistd.h> + +long __syscall_ret(unsigned long r) +{ + if (r >= (unsigned long)-1 - 4096) { + errno = -(long)r; + return -1; + } + return (long)r; +} diff --git a/src/internal/x86_64/syscall.s b/src/internal/x86_64/syscall.s new file mode 100644 index 00000000..7bec7291 --- /dev/null +++ b/src/internal/x86_64/syscall.s @@ -0,0 +1,14 @@ +.global __syscall +.type __syscall,%function +__syscall: +di,si,dx,cx,r8,r9 + movq %rdi,%rax + movq %rsi,%rdi + movq %rdx,%rsi + movq %rcx,%rdx + movq %r8,%r10 + movq %r9,%r8 + movq 8(%rsp),%r9 + syscall + ret +.size __syscall,.-__syscall |