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-rw-r--r--src/common/include/proto/syscall.h12
-rw-r--r--src/kernel/Makefile2
-rw-r--r--src/kernel/include/vfs.h1
-rw-r--r--src/kernel/user/elf.c2
-rw-r--r--src/kernel/user/process.c4
-rw-r--r--src/kernel/user/syscall.c29
-rw-r--r--src/kernel/user/vfs.c4
-rw-r--r--src/lib/include/syscall.h3
-rw-r--r--src/lib/libkogata/syscall.c7
9 files changed, 46 insertions, 18 deletions
diff --git a/src/common/include/proto/syscall.h b/src/common/include/proto/syscall.h
index a671c65..dfb9e2e 100644
--- a/src/common/include/proto/syscall.h
+++ b/src/common/include/proto/syscall.h
@@ -31,12 +31,13 @@ typedef struct { fd_t a, b; } fd_pair_t;
#define SC_READDIR 34 // args: fd, ent_no, out dirent_t *data
#define SC_STAT_OPEN 35 // args: fd, out stat_t *data -- stat on open file handle
#define SC_IOCTL 36 // args: fd, command, out void* data
-#define SC_GET_MODE 37 // args: fd -- get mode for open file handle
+#define SC_FCTL 37 // args: fd, command, out void* data
#define SC_SELECT 38 // args: sel_fd_t*, count, timeout
#define SC_MK_CHANNEL 40 // args: blocking?, (int, int)*
-#define SC_GEN_TOKEN 41 // args: fd, token_t*
-#define SC_USE_TOKEN 42 // args: token_t*
+#define SC_MK_SHM 41 // args: size
+#define SC_GEN_TOKEN 42 // args: fd, token_t*
+#define SC_USE_TOKEN 43 // args: token_t*
#define SC_MAKE_FS 50 // args: sc_make_fs_args_t
#define SC_FS_ADD_SRC 51 // args: fs_name, fs_name_strlen, fd, opts, opts_strlen
@@ -56,6 +57,11 @@ typedef struct { fd_t a, b; } fd_pair_t;
#define INVALID_PID 0 // do a wait with this PID to wayt for any child
+// operations for fctl
+#define FC_GET_MODE 1
+#define FC_SET_BLOCKING 2
+#define FC_SET_NONBLOCKING 3
+
typedef struct {
const char* driver;
size_t driver_strlen;
diff --git a/src/kernel/Makefile b/src/kernel/Makefile
index cee3e20..78aa057 100644
--- a/src/kernel/Makefile
+++ b/src/kernel/Makefile
@@ -9,7 +9,7 @@ OBJ = core/loader.o core/dbglog.o \
LIB = ../common/libc/libc.lib ../common/libkogata/libkogata.lib ../common/libalgo/libalgo.lib
-CFLAGS = -I ./include -I ../common/include -DPRNG_INIT_ENTROPY=$(shell date +%N)
+CFLAGS = -I ./include -I ../common/include -DPRNG_INIT_ENTROPY=1$(shell date +%N)
LDFLAGS = -T linker.ld -Xlinker -Map=kernel.map
diff --git a/src/kernel/include/vfs.h b/src/kernel/include/vfs.h
index be35726..226f962 100644
--- a/src/kernel/include/vfs.h
+++ b/src/kernel/include/vfs.h
@@ -175,7 +175,6 @@ fs_handle_t* fs_open(fs_t *fs, const char* file, int mode);
void ref_file(fs_handle_t *file);
void unref_file(fs_handle_t *file);
-int file_get_mode(fs_handle_t *f);
bool file_stat(fs_handle_t *f, stat_t *st);
size_t file_read(fs_handle_t *f, size_t offset, size_t len, char* buf);
diff --git a/src/kernel/user/elf.c b/src/kernel/user/elf.c
index ed9d3c4..2fcc915 100644
--- a/src/kernel/user/elf.c
+++ b/src/kernel/user/elf.c
@@ -34,7 +34,7 @@ proc_entry_t elf_load(fs_handle_t *f, process_t* process) {
if (read_phdr_r != sizeof(elf_phdr_t)) goto error;
if (phdr.p_type == PT_LOAD) {
- if ((phdr.p_flags & PF_W) || !(file_get_mode(f) & FM_MMAP)) {
+ if ((phdr.p_flags & PF_W) || !(f->mode & FM_MMAP)) {
bool mmap_ok = mmap(process, (void*)phdr.p_vaddr, phdr.p_memsz,
((phdr.p_flags & PF_R) ? MM_READ : 0) | MM_WRITE);
if (!mmap_ok) goto error;
diff --git a/src/kernel/user/process.c b/src/kernel/user/process.c
index 85530ca..18b4255 100644
--- a/src/kernel/user/process.c
+++ b/src/kernel/user/process.c
@@ -529,7 +529,7 @@ bool mmap_file(process_t *proc, fs_handle_t *h, size_t offset, void* addr, size_
if ((uint32_t)addr & (~PAGE_MASK)) return false;
if ((uint32_t)offset & (~PAGE_MASK)) return false;
- int fmode = file_get_mode(h);
+ int fmode = h->mode;
if (!(fmode & FM_MMAP) || !(fmode & FM_READ)) return false;
if ((mode & MM_WRITE) && !(fmode & FM_WRITE)) return false;
@@ -573,7 +573,7 @@ bool mchmap(process_t *proc, void* addr, int mode) {
if (r == 0) return false;
if (r->file != 0) {
- if ((mode & MM_WRITE) && !(file_get_mode(r->file) & FM_WRITE)) return false;
+ if ((mode & MM_WRITE) && !(r->file->mode & FM_WRITE)) return false;
}
r->mode = mode;
diff --git a/src/kernel/user/syscall.c b/src/kernel/user/syscall.c
index 67ed317..15b0851 100644
--- a/src/kernel/user/syscall.c
+++ b/src/kernel/user/syscall.c
@@ -276,11 +276,21 @@ static uint32_t ioctl_sc(sc_args_t args) {
return file_ioctl(h, args.b, data);
}
-static uint32_t get_mode_sc(sc_args_t args) {
+static uint32_t fctl_sc(sc_args_t args) {
fs_handle_t *h = proc_read_fd(current_process(), args.a);
if (h == 0) return 0;
- return file_get_mode(h);
+ if (args.b == FC_GET_MODE) {
+ return h->mode;
+ } else if (args.b == FC_SET_BLOCKING) {
+ h->mode |= FM_BLOCKING;
+ return 1;
+ } else if (args.b == FC_SET_NONBLOCKING) {
+ h->mode &= ~FM_BLOCKING;
+ return 1;
+ } else {
+ return 0;
+ }
}
static uint32_t select_sc(sc_args_t args) {
@@ -375,6 +385,19 @@ error:
return false;
}
+static uint32_t make_shm_sc(sc_args_t args) {
+ fs_handle_t *h = make_shm(args.a);
+ if (h == 0) return 0;
+
+ int fd = proc_add_fd(current_process(), h);
+ if (fd == 0) {
+ unref_file(h);
+ return 0;
+ }
+
+ return fd;
+}
+
static uint32_t gen_token_sc(sc_args_t args) {
fs_handle_t *h = proc_read_fd(current_process(), args.a);
if (h == 0) return false;
@@ -694,7 +717,7 @@ void setup_syscall_table() {
sc_handlers[SC_READDIR] = readdir_sc;
sc_handlers[SC_STAT_OPEN] = stat_open_sc;
sc_handlers[SC_IOCTL] = ioctl_sc;
- sc_handlers[SC_GET_MODE] = get_mode_sc;
+ sc_handlers[SC_FCTL] = fctl_sc;
sc_handlers[SC_SELECT] = select_sc;
sc_handlers[SC_MK_CHANNEL] = make_channel_sc;
diff --git a/src/kernel/user/vfs.c b/src/kernel/user/vfs.c
index 6df0a25..a967f70 100644
--- a/src/kernel/user/vfs.c
+++ b/src/kernel/user/vfs.c
@@ -462,10 +462,6 @@ void unref_file(fs_handle_t *file) {
}
}
-int file_get_mode(fs_handle_t *f) {
- return f->mode;
-}
-
size_t file_read(fs_handle_t *f, size_t offset, size_t len, char* buf) {
if (!(f->mode & FM_READ)) return 0;
diff --git a/src/lib/include/syscall.h b/src/lib/include/syscall.h
index f66b759..07defdb 100644
--- a/src/lib/include/syscall.h
+++ b/src/lib/include/syscall.h
@@ -37,10 +37,11 @@ size_t write(fd_t file, size_t offset, size_t len, const char* buf);
bool readdir(fd_t file, size_t ent_no, dirent_t *d);
bool stat_open(fd_t file, stat_t *s);
int ioctl(fd_t file, int command, void* data);
-int get_mode(fd_t file);
+int fctl(fd_t file, int command, void* data);
bool select(sel_fd_t* fds, size_t nfds, int timeout);
fd_pair_t make_channel(bool blocking);
+fd_t make_shm(size_t size);
bool gen_token(fd_t file, token_t *tok);
fd_t use_token(token_t *tok);
diff --git a/src/lib/libkogata/syscall.c b/src/lib/libkogata/syscall.c
index b724e69..67f95fd 100644
--- a/src/lib/libkogata/syscall.c
+++ b/src/lib/libkogata/syscall.c
@@ -94,8 +94,8 @@ bool stat_open(fd_t file, stat_t *s) {
int ioctl(fd_t file, int command, void* data) {
return call(SC_IOCTL, file, command, (uint32_t)data, 0, 0);
}
-int get_mode(fd_t file) {
- return call(SC_GET_MODE, file, 0, 0, 0, 0);
+int fctl(fd_t file, int command, void *data) {
+ return call(SC_FCTL, file, command, (uint32_t)data, 0, 0);
}
bool select(sel_fd_t* fds, size_t nfds, int timeout) {
return call(SC_SELECT, (uint32_t)fds, nfds, timeout, 0, 0);
@@ -106,6 +106,9 @@ fd_pair_t make_channel(bool blocking) {
call(SC_MK_CHANNEL, blocking, (uint32_t)&ret, 0, 0, 0);
return ret;
}
+fd_t make_shm(size_t s) {
+ return call(SC_MK_SHM, s, 0, 0, 0, 0);
+}
bool gen_token(fd_t file, token_t *tok) {
return call(SC_GEN_TOKEN, file, (uint32_t)tok, 0, 0, 0);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-24 16:11:41 +0000