diff options
Diffstat (limited to 'gnu/packages/patches/guile-3.0-linux-syscalls.patch')
| -rw-r--r-- | gnu/packages/patches/guile-3.0-linux-syscalls.patch | 345 |
1 files changed, 345 insertions, 0 deletions
diff --git a/gnu/packages/patches/guile-3.0-linux-syscalls.patch b/gnu/packages/patches/guile-3.0-linux-syscalls.patch new file mode 100644 index 0000000000..0d27f77ee2 --- /dev/null +++ b/gnu/packages/patches/guile-3.0-linux-syscalls.patch @@ -0,0 +1,345 @@ +This patch adds bindings to Linux syscalls for which glibc has symbols. + +Using the FFI would have been nice, but that's not an option when using +a statically-linked Guile in an initrd that doesn't have libc.so around. + +diff --git a/libguile/posix.c b/libguile/posix.c +--- a/libguile/posix.c ++++ b/libguile/posix.c +@@ -2375,6 +2375,336 @@ scm_init_popen (void) + } + #endif /* HAVE_START_CHILD */ + ++ ++/* Linux! */ ++#ifdef __linux__ ++ ++#include <sys/mount.h> ++#include <sys/syscall.h> ++ ++#include "libguile/foreign.h" ++#include "libguile/bytevectors.h" ++#include <libguile/variable.h> ++ ++SCM_DEFINE (scm_mount, "mount", 3, 2, 0, ++ (SCM source, SCM target, SCM type, SCM flags, SCM data), ++ "Mount file system of @var{type} specified by @var{source} " ++ "on @var{target}.") ++#define FUNC_NAME s_scm_mount ++{ ++ int err; ++ char *c_source, *c_target, *c_type, *c_data; ++ unsigned long c_flags; ++ ++ c_source = scm_to_locale_string (source); ++ c_target = scm_to_locale_string (target); ++ c_type = scm_to_locale_string (type); ++ c_flags = SCM_UNBNDP (flags) ? 0 : scm_to_ulong (flags); ++ ++ if (SCM_UNBNDP (data) || scm_is_false (data)) ++ c_data = NULL; ++ else ++ c_data = scm_to_locale_string (data); ++ ++ err = mount (c_source, c_target, c_type, c_flags, c_data); ++ if (err != 0) ++ err = errno; ++ ++ free (c_source); ++ free (c_target); ++ free (c_type); ++ ++ if (c_data != NULL) ++ free (c_data); ++ ++ if (err != 0) ++ { ++ errno = err; ++ SCM_SYSERROR; ++ } ++ ++ return SCM_UNSPECIFIED; ++} ++#undef FUNC_NAME ++ ++SCM_DEFINE (scm_umount, "umount", 1, 0, 0, ++ (SCM target), ++ "Unmount the file system on @var{target}.") ++#define FUNC_NAME s_scm_umount ++{ ++ int err; ++ char *c_target; ++ ++ c_target = scm_to_locale_string (target); ++ ++ err = umount (c_target); ++ if (err != 0) ++ err = errno; ++ ++ free (c_target); ++ ++ if (err != 0) ++ { ++ errno = err; ++ SCM_SYSERROR; ++ } ++ ++ return SCM_UNSPECIFIED; ++} ++#undef FUNC_NAME ++ ++/* Linux's module installation syscall. See `kernel/module.c' in Linux; ++ the function itself is part of the GNU libc. ++ ++ Load the LEN bytes at MODULE as a kernel module, with arguments from ++ ARGS, a space-separated list of options. */ ++extern long init_module (void *module, unsigned long len, const char *args); ++ ++/* Load a kernel module from FD. FLAGS must be a bitwise or of ++ MODULE_INIT_* constants. The GNU libc doesn't provide a wrapper for ++ this one so we use 'syscall'. */ ++static int ++finit_module (int fd, const char *args, int flags) ++{ ++ return syscall (SYS_finit_module, fd, args, flags); ++} ++ ++ ++SCM_DEFINE (scm_load_linux_module, "load-linux-module", 1, 1, 0, ++ (SCM data, SCM options), ++ "Load the Linux kernel module whose contents are in bytevector " ++ "DATA (the contents of a @code{.ko} file), with the arguments " ++ "from the OPTIONS string.") ++#define FUNC_NAME s_scm_load_linux_module ++{ ++ long err; ++ void *c_data; ++ unsigned long c_len; ++ char *c_options; ++ ++ SCM_VALIDATE_BYTEVECTOR (SCM_ARG1, data); ++ ++ c_data = SCM_BYTEVECTOR_CONTENTS (data); ++ c_len = SCM_BYTEVECTOR_LENGTH (data); ++ c_options = ++ scm_to_locale_string (SCM_UNBNDP (options) ? scm_nullstr : options); ++ ++ err = init_module (c_data, c_len, c_options); ++ ++ free (c_options); ++ ++ if (err != 0) ++ SCM_SYSERROR; ++ ++ return SCM_UNSPECIFIED; ++} ++#undef FUNC_NAME ++ ++SCM_DEFINE (scm_load_linux_module_fd, "load-linux-module/fd", 1, 2, 0, ++ (SCM fd, SCM options, SCM flags), ++ "Load the Linux kernel module from the file at FD, " ++ "with the arguments from the OPTIONS string, and " ++ "optionally the given FLAGS.") ++#define FUNC_NAME s_scm_load_linux_module_fd ++{ ++ long err; ++ int c_fd, c_flags; ++ char *c_options; ++ ++ c_fd = scm_to_int (fd); ++ c_options = ++ scm_to_locale_string (SCM_UNBNDP (options) ? scm_nullstr : options); ++ c_flags = SCM_UNBNDP (flags) ? 0 : scm_to_int (flags); ++ ++ err = finit_module (c_fd, c_options, c_flags); ++ ++ free (c_options); ++ ++ if (err != 0) ++ SCM_SYSERROR; ++ ++ return SCM_UNSPECIFIED; ++} ++#undef FUNC_NAME ++ ++ ++/* Rebooting, halting, and all that. */ ++ ++#include <sys/reboot.h> ++ ++SCM_VARIABLE_INIT (flag_RB_AUTOBOOT, "RB_AUTOBOOT", ++ scm_from_int (RB_AUTOBOOT)); ++SCM_VARIABLE_INIT (flag_RB_HALT_SYSTEM, "RB_HALT_SYSTEM", ++ scm_from_int (RB_HALT_SYSTEM)); ++SCM_VARIABLE_INIT (flag_RB_ENABLE_CAD, "RB_ENABLE_CAD", ++ scm_from_int (RB_ENABLE_CAD)); ++SCM_VARIABLE_INIT (flag_RB_DISABLE_CAD, "RB_DISABLE_CAD", ++ scm_from_int (RB_DISABLE_CAD)); ++SCM_VARIABLE_INIT (flag_RB_POWER_OFF, "RB_POWER_OFF", ++ scm_from_int (RB_POWER_OFF)); ++SCM_VARIABLE_INIT (flag_RB_SW_SUSPEND, "RB_SW_SUSPEND", ++ scm_from_int (RB_SW_SUSPEND)); ++SCM_VARIABLE_INIT (flag_RB_KEXEC, "RB_KEXEC", ++ scm_from_int (RB_KEXEC)); ++ ++SCM_DEFINE (scm_reboot, "reboot", 0, 1, 0, ++ (SCM command), ++ "Reboot the system. @var{command} must be one of the @code{RB_} " ++ "constants; if omitted, @var{RB_AUTOBOOT} is used, thus " ++ "performing a hard reset.") ++#define FUNC_NAME s_scm_reboot ++{ ++ int c_command; ++ ++ if (SCM_UNBNDP (command)) ++ c_command = RB_AUTOBOOT; ++ else ++ c_command = scm_to_int (command); ++ ++ reboot (c_command); ++ ++ return SCM_UNSPECIFIED; /* likely unreached */ ++} ++#undef FUNC_NAME ++ ++/* Linux network interfaces. See <linux/if.h>. */ ++ ++#include <linux/if.h> ++#include <linux/sockios.h> ++#include "libguile/socket.h" ++ ++SCM_VARIABLE_INIT (flag_IFF_UP, "IFF_UP", ++ scm_from_int (IFF_UP)); ++SCM_VARIABLE_INIT (flag_IFF_BROADCAST, "IFF_BROADCAST", ++ scm_from_int (IFF_BROADCAST)); ++SCM_VARIABLE_INIT (flag_IFF_DEBUG, "IFF_DEBUG", ++ scm_from_int (IFF_DEBUG)); ++SCM_VARIABLE_INIT (flag_IFF_LOOPBACK, "IFF_LOOPBACK", ++ scm_from_int (IFF_LOOPBACK)); ++SCM_VARIABLE_INIT (flag_IFF_POINTOPOINT, "IFF_POINTOPOINT", ++ scm_from_int (IFF_POINTOPOINT)); ++SCM_VARIABLE_INIT (flag_IFF_NOTRAILERS, "IFF_NOTRAILERS", ++ scm_from_int (IFF_NOTRAILERS)); ++SCM_VARIABLE_INIT (flag_IFF_RUNNING, "IFF_RUNNING", ++ scm_from_int (IFF_RUNNING)); ++SCM_VARIABLE_INIT (flag_IFF_NOARP, "IFF_NOARP", ++ scm_from_int (IFF_NOARP)); ++SCM_VARIABLE_INIT (flag_IFF_PROMISC, "IFF_PROMISC", ++ scm_from_int (IFF_PROMISC)); ++SCM_VARIABLE_INIT (flag_IFF_ALLMULTI, "IFF_ALLMULTI", ++ scm_from_int (IFF_ALLMULTI)); ++ ++SCM_DEFINE (scm_set_network_interface_address, "set-network-interface-address", ++ 3, 0, 0, ++ (SCM socket, SCM name, SCM address), ++ "Configure network interface @var{name}.") ++#define FUNC_NAME s_scm_set_network_interface_address ++{ ++ char *c_name; ++ struct ifreq ifr; ++ struct sockaddr *c_address; ++ size_t sa_len; ++ int fd, err; ++ ++ socket = SCM_COERCE_OUTPORT (socket); ++ SCM_VALIDATE_OPFPORT (1, socket); ++ fd = SCM_FPORT_FDES (socket); ++ ++ memset (&ifr, 0, sizeof ifr); ++ c_name = scm_to_locale_string (name); ++ c_address = scm_to_sockaddr (address, &sa_len); ++ ++ strncpy (ifr.ifr_name, c_name, sizeof ifr.ifr_name - 1); ++ memcpy (&ifr.ifr_addr, c_address, sa_len); ++ ++ err = ioctl (fd, SIOCSIFADDR, &ifr); ++ if (err != 0) ++ err = errno; ++ ++ free (c_name); ++ free (c_address); ++ ++ if (err != 0) ++ { ++ errno = err; ++ SCM_SYSERROR; ++ } ++ ++ return SCM_UNSPECIFIED; ++} ++#undef FUNC_NAME ++ ++SCM_DEFINE (scm_set_network_interface_flags, "set-network-interface-flags", ++ 3, 0, 0, ++ (SCM socket, SCM name, SCM flags), ++ "Change the flags of network interface @var{name} to " ++ "@var{flags}.") ++#define FUNC_NAME s_scm_set_network_interface_flags ++{ ++ struct ifreq ifr; ++ char *c_name; ++ int fd, err; ++ ++ socket = SCM_COERCE_OUTPORT (socket); ++ SCM_VALIDATE_OPFPORT (1, socket); ++ fd = SCM_FPORT_FDES (socket); ++ ++ memset (&ifr, 0, sizeof ifr); ++ c_name = scm_to_locale_string (name); ++ strncpy (ifr.ifr_name, c_name, sizeof ifr.ifr_name - 1); ++ ifr.ifr_flags = scm_to_short (flags); ++ ++ err = ioctl (fd, SIOCSIFFLAGS, &ifr); ++ if (err != 0) ++ err = errno; ++ ++ free (c_name); ++ ++ if (err != 0) ++ { ++ errno = err; ++ SCM_SYSERROR; ++ } ++ ++ return SCM_UNSPECIFIED; ++} ++#undef FUNC_NAME ++ ++SCM_DEFINE (scm_network_interface_flags, "network-interface-flags", ++ 2, 0, 0, ++ (SCM socket, SCM name), ++ "Return the flags of network interface @var{name}.") ++#define FUNC_NAME s_scm_network_interface_flags ++{ ++ struct ifreq ifr; ++ char *c_name; ++ int fd, err; ++ ++ socket = SCM_COERCE_OUTPORT (socket); ++ SCM_VALIDATE_OPFPORT (1, socket); ++ fd = SCM_FPORT_FDES (socket); ++ ++ memset (&ifr, 0, sizeof ifr); ++ c_name = scm_to_locale_string (name); ++ strncpy (ifr.ifr_name, c_name, sizeof ifr.ifr_name - 1); ++ ++ err = ioctl (fd, SIOCGIFFLAGS, &ifr); ++ if (err != 0) ++ err = errno; ++ ++ free (c_name); ++ ++ if (err != 0) ++ { ++ errno = err; ++ SCM_SYSERROR; ++ } ++ ++ return scm_from_short (ifr.ifr_flags); ++} ++#undef FUNC_NAME ++#endif ++ + void + scm_init_posix () + { |