diff options
| -rw-r--r-- | Makerules | 24 | ||||
| -rw-r--r-- | elf/Makefile | 16 | ||||
| -rw-r--r-- | include/libc-symbols.h | 18 | ||||
| -rw-r--r-- | libio/Makefile | 2 | ||||
| -rw-r--r-- | libio/fileops.c | 81 | ||||
| -rw-r--r-- | libio/iofopncook.c | 60 | ||||
| -rw-r--r-- | libio/iopopen.c | 25 | ||||
| -rw-r--r-- | libio/libio-macros.sym | 7 | ||||
| -rw-r--r-- | libio/libioP.h | 136 | ||||
| -rw-r--r-- | libio/memstream.c | 32 | ||||
| -rw-r--r-- | libio/oldfileops.c | 23 | ||||
| -rw-r--r-- | libio/oldiopopen.c | 23 | ||||
| -rw-r--r-- | libio/stdio.c | 3 | ||||
| -rw-r--r-- | libio/strfile.h | 2 | ||||
| -rw-r--r-- | libio/strops.c | 24 | ||||
| -rw-r--r-- | libio/tst-vtables-interposed.c | 5 | ||||
| -rw-r--r-- | libio/vtables.c | 478 | ||||
| -rw-r--r-- | libio/wfileops.c | 79 | ||||
| -rw-r--r-- | libio/wmemstream.c | 32 | ||||
| -rw-r--r-- | libio/wstrops.c | 24 | ||||
| -rw-r--r-- | stdio-common/printf_buffer_as_file.c | 28 | ||||
| -rw-r--r-- | stdio-common/wprintf_buffer_as_file.c | 28 |
22 files changed, 637 insertions, 513 deletions
@@ -544,34 +544,10 @@ $(LINK.o) -shared -static-libgcc -Wl,-O1 $(sysdep-LDFLAGS) \ -L$(subst :, -L,$(rpath-link)) -Wl,-rpath-link=$(rpath-link) endef -ifeq (yes,$(use-default-link)) # If the linker is good enough, we can let it use its default linker script. # In the long term the custom linker script will be removed. shlib-lds = shlib-lds-flags = -else -# binutils only position loadable notes into the first page for binaries, -# not for shared objects -# lld --verbose does not dump a linker script. Use -fuse-ld=bfd. -$(common-objpfx)shlib.lds: $(common-objpfx)config.make $(..)Makerules - $(LINK.o) -shared -Wl,-O1 \ - -nostdlib -nostartfiles -fuse-ld=bfd \ - $(sysdep-LDFLAGS) $(rtld-LDFLAGS) $(LDFLAGS.so) \ - -Wl,--verbose 2>/dev/null | \ - sed > $@T \ - -e '/^=========/,/^=========/!d;/^=========/d' \ - -e 's@^.*\*(\.jcr).*$$@& \ - PROVIDE(__start___libc_IO_vtables = .);\ - __libc_IO_vtables : { *(__libc_IO_vtables) }\ - PROVIDE(__stop___libc_IO_vtables = .);\ - /DISCARD/ : { *(.gnu.glibc-stub.*) }@' - test -s $@T - mv -f $@T $@ -common-generated += shlib.lds - -shlib-lds = $(common-objpfx)shlib.lds -shlib-lds-flags = -T $(shlib-lds) -endif define build-shlib $(build-shlib-helper) -o $@ $(shlib-lds-flags) \ diff --git a/elf/Makefile b/elf/Makefile index 4d0e04b..be6f2ca 100644 --- a/elf/Makefile +++ b/elf/Makefile @@ -595,23 +595,9 @@ $(objpfx)tst-relro-ldso.out: tst-relro-symbols.py $(..)/scripts/glibcelf.py \ $(objpfx)tst-relro-libc.out: tst-relro-symbols.py $(..)/scripts/glibcelf.py \ $(common-objpfx)libc.so $(PYTHON) tst-relro-symbols.py $(common-objpfx)libc.so \ - --required=_IO_cookie_jumps \ --required=_IO_file_jumps \ - --required=_IO_file_jumps_maybe_mmap \ - --required=_IO_file_jumps_mmap \ - --required=_IO_mem_jumps \ - --required=_IO_printf_buffer_as_file_jumps \ - --required=_IO_proc_jumps \ - --required=_IO_str_jumps \ --required=_IO_wfile_jumps \ - --required=_IO_wfile_jumps_maybe_mmap \ - --required=_IO_wfile_jumps_mmap \ - --required=_IO_wmem_jumps \ - --required=_IO_wprintf_buffer_as_file_jumps \ - --required=_IO_wstr_jumps \ - --optional=_IO_old_cookie_jumps \ - --optional=_IO_old_file_jumps \ - --optional=_IO_old_proc_jumps \ + --required=__io_vtables \ > $@ 2>&1; $(evaluate-test) ifeq ($(run-built-tests),yes) diff --git a/include/libc-symbols.h b/include/libc-symbols.h index 155781d..37c91bb 100644 --- a/include/libc-symbols.h +++ b/include/libc-symbols.h @@ -243,20 +243,26 @@ for linking") This is only necessary when defining something in assembly, or playing funny alias games where the size should be other than what the compiler thinks it is. */ -#ifdef __ASSEMBLER__ -# define declare_object_symbol_alias(symbol, original, size) \ +#define declare_object_symbol_alias(symbol, original, size) \ declare_object_symbol_alias_1 (symbol, original, size) +#ifdef __ASSEMBLER__ # define declare_object_symbol_alias_1(symbol, original, s_size) \ strong_alias (original, symbol) ASM_LINE_SEP \ .type C_SYMBOL_NAME (symbol), %object ASM_LINE_SEP \ .size C_SYMBOL_NAME (symbol), s_size ASM_LINE_SEP #else /* Not __ASSEMBLER__. */ # ifdef HAVE_ASM_SET_DIRECTIVE -# define declare_symbol_alias_1_alias(symbol, original) \ - ".set " __SYMBOL_PREFIX #symbol ", " __SYMBOL_PREFIX #original +# define declare_object_symbol_alias_1(symbol, original, size) \ + asm (".global " __SYMBOL_PREFIX # symbol "\n" \ + ".type " __SYMBOL_PREFIX # symbol ", %object\n" \ + ".set " __SYMBOL_PREFIX #symbol ", " __SYMBOL_PREFIX original "\n" \ + ".size " __SYMBOL_PREFIX #symbol ", " #size "\n"); # else -# define declare_symbol_alias_1_alias(symbol, original) \ - __SYMBOL_PREFIX #symbol " = " __SYMBOL_PREFIX #original +# define declare_object_symbol_alias_1(symbol, original, size) \ + asm (".global " __SYMBOL_PREFIX # symbol "\n" \ + ".type " __SYMBOL_PREFIX # symbol ", %object\n" \ + __SYMBOL_PREFIX #symbol " = " __SYMBOL_PREFIX original "\n" \ + ".size " __SYMBOL_PREFIX #symbol ", " #size "\n"); # endif /* HAVE_ASM_SET_DIRECTIVE */ #endif /* __ASSEMBLER__ */ diff --git a/libio/Makefile b/libio/Makefile index 52892a2..2877fec 100644 --- a/libio/Makefile +++ b/libio/Makefile @@ -51,6 +51,8 @@ routines := \ \ libc_fatal fmemopen oldfmemopen vtables +gen-as-const-headers += libio-macros.sym + tests = tst_swprintf tst_wprintf tst_swscanf tst_wscanf tst_getwc tst_putwc \ tst_wprintf2 tst-widetext test-fmemopen tst-ext tst-ext2 \ tst-fgetws tst-ungetwc1 tst-ungetwc2 tst-swscanf tst-sscanf \ diff --git a/libio/fileops.c b/libio/fileops.c index b75d748..58c9e98 100644 --- a/libio/fileops.c +++ b/libio/fileops.c @@ -815,7 +815,7 @@ _IO_new_file_sync (FILE *fp) } libc_hidden_ver (_IO_new_file_sync, _IO_file_sync) -static int +int _IO_file_sync_mmap (FILE *fp) { if (fp->_IO_read_ptr != fp->_IO_read_end) @@ -1109,7 +1109,7 @@ _IO_file_seekoff_mmap (FILE *fp, off64_t offset, int dir, int mode) return offset; } -static off64_t +off64_t _IO_file_seekoff_maybe_mmap (FILE *fp, off64_t offset, int dir, int mode) { @@ -1360,7 +1360,7 @@ _IO_file_xsgetn (FILE *fp, void *data, size_t n) } libc_hidden_def (_IO_file_xsgetn) -static size_t +size_t _IO_file_xsgetn_mmap (FILE *fp, void *data, size_t n) { size_t have; @@ -1405,7 +1405,7 @@ _IO_file_xsgetn_mmap (FILE *fp, void *data, size_t n) return s - (char *) data; } -static size_t +size_t _IO_file_xsgetn_maybe_mmap (FILE *fp, void *data, size_t n) { /* We only get here if this is the first attempt to read something. @@ -1428,76 +1428,3 @@ versioned_symbol (libc, _IO_new_file_seekoff, _IO_file_seekoff, GLIBC_2_1); versioned_symbol (libc, _IO_new_file_underflow, _IO_file_underflow, GLIBC_2_1); versioned_symbol (libc, _IO_new_file_write, _IO_file_write, GLIBC_2_1); versioned_symbol (libc, _IO_new_file_xsputn, _IO_file_xsputn, GLIBC_2_1); - -const struct _IO_jump_t _IO_file_jumps libio_vtable = -{ - JUMP_INIT_DUMMY, - JUMP_INIT(finish, _IO_file_finish), - JUMP_INIT(overflow, _IO_file_overflow), - JUMP_INIT(underflow, _IO_file_underflow), - JUMP_INIT(uflow, _IO_default_uflow), - JUMP_INIT(pbackfail, _IO_default_pbackfail), - JUMP_INIT(xsputn, _IO_file_xsputn), - JUMP_INIT(xsgetn, _IO_file_xsgetn), - JUMP_INIT(seekoff, _IO_new_file_seekoff), - JUMP_INIT(seekpos, _IO_default_seekpos), - JUMP_INIT(setbuf, _IO_new_file_setbuf), - JUMP_INIT(sync, _IO_new_file_sync), - JUMP_INIT(doallocate, _IO_file_doallocate), - JUMP_INIT(read, _IO_file_read), - JUMP_INIT(write, _IO_new_file_write), - JUMP_INIT(seek, _IO_file_seek), - JUMP_INIT(close, _IO_file_close), - JUMP_INIT(stat, _IO_file_stat), - JUMP_INIT(showmanyc, _IO_default_showmanyc), - JUMP_INIT(imbue, _IO_default_imbue) -}; -libc_hidden_data_def (_IO_file_jumps) - -const struct _IO_jump_t _IO_file_jumps_mmap libio_vtable = -{ - JUMP_INIT_DUMMY, - JUMP_INIT(finish, _IO_file_finish), - JUMP_INIT(overflow, _IO_file_overflow), - JUMP_INIT(underflow, _IO_file_underflow_mmap), - JUMP_INIT(uflow, _IO_default_uflow), - JUMP_INIT(pbackfail, _IO_default_pbackfail), - JUMP_INIT(xsputn, _IO_new_file_xsputn), - JUMP_INIT(xsgetn, _IO_file_xsgetn_mmap), - JUMP_INIT(seekoff, _IO_file_seekoff_mmap), - JUMP_INIT(seekpos, _IO_default_seekpos), - JUMP_INIT(setbuf, (_IO_setbuf_t) _IO_file_setbuf_mmap), - JUMP_INIT(sync, _IO_file_sync_mmap), - JUMP_INIT(doallocate, _IO_file_doallocate), - JUMP_INIT(read, _IO_file_read), - JUMP_INIT(write, _IO_new_file_write), - JUMP_INIT(seek, _IO_file_seek), - JUMP_INIT(close, _IO_file_close_mmap), - JUMP_INIT(stat, _IO_file_stat), - JUMP_INIT(showmanyc, _IO_default_showmanyc), - JUMP_INIT(imbue, _IO_default_imbue) -}; - -const struct _IO_jump_t _IO_file_jumps_maybe_mmap libio_vtable = -{ - JUMP_INIT_DUMMY, - JUMP_INIT(finish, _IO_file_finish), - JUMP_INIT(overflow, _IO_file_overflow), - JUMP_INIT(underflow, _IO_file_underflow_maybe_mmap), - JUMP_INIT(uflow, _IO_default_uflow), - JUMP_INIT(pbackfail, _IO_default_pbackfail), - JUMP_INIT(xsputn, _IO_new_file_xsputn), - JUMP_INIT(xsgetn, _IO_file_xsgetn_maybe_mmap), - JUMP_INIT(seekoff, _IO_file_seekoff_maybe_mmap), - JUMP_INIT(seekpos, _IO_default_seekpos), - JUMP_INIT(setbuf, (_IO_setbuf_t) _IO_file_setbuf_mmap), - JUMP_INIT(sync, _IO_new_file_sync), - JUMP_INIT(doallocate, _IO_file_doallocate), - JUMP_INIT(read, _IO_file_read), - JUMP_INIT(write, _IO_new_file_write), - JUMP_INIT(seek, _IO_file_seek), - JUMP_INIT(close, _IO_file_close), - JUMP_INIT(stat, _IO_file_stat), - JUMP_INIT(showmanyc, _IO_default_showmanyc), - JUMP_INIT(imbue, _IO_default_imbue) -}; diff --git a/libio/iofopncook.c b/libio/iofopncook.c index d6a06c5..5511c07 100644 --- a/libio/iofopncook.c +++ b/libio/iofopncook.c @@ -30,7 +30,7 @@ #include <shlib-compat.h> #include <pointer_guard.h> -static ssize_t +ssize_t _IO_cookie_read (FILE *fp, void *buf, ssize_t size) { struct _IO_cookie_file *cfile = (struct _IO_cookie_file *) fp; @@ -43,7 +43,7 @@ _IO_cookie_read (FILE *fp, void *buf, ssize_t size) return read_cb (cfile->__cookie, buf, size); } -static ssize_t +ssize_t _IO_cookie_write (FILE *fp, const void *buf, ssize_t size) { struct _IO_cookie_file *cfile = (struct _IO_cookie_file *) fp; @@ -63,7 +63,7 @@ _IO_cookie_write (FILE *fp, const void *buf, ssize_t size) return n; } -static off64_t +off64_t _IO_cookie_seek (FILE *fp, off64_t offset, int dir) { struct _IO_cookie_file *cfile = (struct _IO_cookie_file *) fp; @@ -77,7 +77,7 @@ _IO_cookie_seek (FILE *fp, off64_t offset, int dir) ? _IO_pos_BAD : offset); } -static int +int _IO_cookie_close (FILE *fp) { struct _IO_cookie_file *cfile = (struct _IO_cookie_file *) fp; @@ -91,7 +91,7 @@ _IO_cookie_close (FILE *fp) } -static off64_t +off64_t _IO_cookie_seekoff (FILE *fp, off64_t offset, int dir, int mode) { /* We must force the fileops code to always use seek to determine @@ -100,31 +100,6 @@ _IO_cookie_seekoff (FILE *fp, off64_t offset, int dir, int mode) return _IO_file_seekoff (fp, offset, dir, mode); } - -static const struct _IO_jump_t _IO_cookie_jumps libio_vtable = { - JUMP_INIT_DUMMY, - JUMP_INIT(finish, _IO_file_finish), - JUMP_INIT(overflow, _IO_file_overflow), - JUMP_INIT(underflow, _IO_file_underflow), - JUMP_INIT(uflow, _IO_default_uflow), - JUMP_INIT(pbackfail, _IO_default_pbackfail), - JUMP_INIT(xsputn, _IO_file_xsputn), - JUMP_INIT(xsgetn, _IO_default_xsgetn), - JUMP_INIT(seekoff, _IO_cookie_seekoff), - JUMP_INIT(seekpos, _IO_default_seekpos), - JUMP_INIT(setbuf, _IO_file_setbuf), - JUMP_INIT(sync, _IO_file_sync), - JUMP_INIT(doallocate, _IO_file_doallocate), - JUMP_INIT(read, _IO_cookie_read), - JUMP_INIT(write, _IO_cookie_write), - JUMP_INIT(seek, _IO_cookie_seek), - JUMP_INIT(close, _IO_cookie_close), - JUMP_INIT(stat, _IO_default_stat), - JUMP_INIT(showmanyc, _IO_default_showmanyc), - JUMP_INIT(imbue, _IO_default_imbue), -}; - - /* Copy the callbacks from SOURCE to *TARGET, with pointer mangling. */ static void @@ -209,7 +184,7 @@ versioned_symbol (libc, _IO_fopencookie, fopencookie, GLIBC_2_2); #if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_2) -static off64_t +off64_t attribute_compat_text_section _IO_old_cookie_seek (FILE *fp, off64_t offset, int dir) { @@ -226,29 +201,6 @@ _IO_old_cookie_seek (FILE *fp, off64_t offset, int dir) return (ret == -1) ? _IO_pos_BAD : ret; } -static const struct _IO_jump_t _IO_old_cookie_jumps libio_vtable = { - JUMP_INIT_DUMMY, - JUMP_INIT(finish, _IO_file_finish), - JUMP_INIT(overflow, _IO_file_overflow), - JUMP_INIT(underflow, _IO_file_underflow), - JUMP_INIT(uflow, _IO_default_uflow), - JUMP_INIT(pbackfail, _IO_default_pbackfail), - JUMP_INIT(xsputn, _IO_file_xsputn), - JUMP_INIT(xsgetn, _IO_default_xsgetn), - JUMP_INIT(seekoff, _IO_cookie_seekoff), - JUMP_INIT(seekpos, _IO_default_seekpos), - JUMP_INIT(setbuf, _IO_file_setbuf), - JUMP_INIT(sync, _IO_file_sync), - JUMP_INIT(doallocate, _IO_file_doallocate), - JUMP_INIT(read, _IO_cookie_read), - JUMP_INIT(write, _IO_cookie_write), - JUMP_INIT(seek, _IO_old_cookie_seek), - JUMP_INIT(close, _IO_cookie_close), - JUMP_INIT(stat, _IO_default_stat), - JUMP_INIT(showmanyc, _IO_default_showmanyc), - JUMP_INIT(imbue, _IO_default_imbue), -}; - FILE * attribute_compat_text_section _IO_old_fopencookie (void *cookie, const char *mode, diff --git a/libio/iopopen.c b/libio/iopopen.c index d0545ad..a64033e 100644 --- a/libio/iopopen.c +++ b/libio/iopopen.c @@ -45,8 +45,6 @@ struct _IO_proc_file }; typedef struct _IO_proc_file _IO_proc_file; -static const struct _IO_jump_t _IO_proc_jumps; - static struct _IO_proc_file *proc_file_chain; #ifdef _IO_MTSAFE_IO @@ -297,29 +295,6 @@ _IO_new_proc_close (FILE *fp) return wstatus; } -static const struct _IO_jump_t _IO_proc_jumps libio_vtable = { - JUMP_INIT_DUMMY, - JUMP_INIT(finish, _IO_new_file_finish), - JUMP_INIT(overflow, _IO_new_file_overflow), - JUMP_INIT(underflow, _IO_new_file_underflow), - JUMP_INIT(uflow, _IO_default_uflow), - JUMP_INIT(pbackfail, _IO_default_pbackfail), - JUMP_INIT(xsputn, _IO_new_file_xsputn), - JUMP_INIT(xsgetn, _IO_default_xsgetn), - JUMP_INIT(seekoff, _IO_new_file_seekoff), - JUMP_INIT(seekpos, _IO_default_seekpos), - JUMP_INIT(setbuf, _IO_new_file_setbuf), - JUMP_INIT(sync, _IO_new_file_sync), - JUMP_INIT(doallocate, _IO_file_doallocate), - JUMP_INIT(read, _IO_file_read), - JUMP_INIT(write, _IO_new_file_write), - JUMP_INIT(seek, _IO_file_seek), - JUMP_INIT(close, _IO_new_proc_close), - JUMP_INIT(stat, _IO_file_stat), - JUMP_INIT(showmanyc, _IO_default_showmanyc), - JUMP_INIT(imbue, _IO_default_imbue) -}; - strong_alias (_IO_new_popen, __new_popen) versioned_symbol (libc, _IO_new_popen, _IO_popen, GLIBC_2_1); versioned_symbol (libc, __new_popen, popen, GLIBC_2_1); diff --git a/libio/libio-macros.sym b/libio/libio-macros.sym new file mode 100644 index 0000000..cfb5cf2 --- /dev/null +++ b/libio/libio-macros.sym @@ -0,0 +1,7 @@ +#include <libioP.h> + +-- + +IO_JUMP_T_SIZE sizeof (struct _IO_jump_t) +IO_FILE_JUMPS_OFFSET sizeof (struct _IO_jump_t) * IO_FILE_JUMPS +IO_WFILE_JUMPS_OFFSET sizeof (struct _IO_jump_t) * IO_WFILE_JUMPS diff --git a/libio/libioP.h b/libio/libioP.h index 80941b7..d777553 100644 --- a/libio/libioP.h +++ b/libio/libioP.h @@ -469,19 +469,68 @@ extern int _IO_default_sync (FILE *) __THROW; extern int _IO_default_showmanyc (FILE *) __THROW; extern void _IO_default_imbue (FILE *, void *) __THROW; -extern const struct _IO_jump_t _IO_file_jumps; -libc_hidden_proto (_IO_file_jumps) -extern const struct _IO_jump_t _IO_file_jumps_mmap attribute_hidden; -extern const struct _IO_jump_t _IO_file_jumps_maybe_mmap attribute_hidden; -extern const struct _IO_jump_t _IO_wfile_jumps; -libc_hidden_proto (_IO_wfile_jumps) -extern const struct _IO_jump_t _IO_wfile_jumps_mmap attribute_hidden; -extern const struct _IO_jump_t _IO_wfile_jumps_maybe_mmap attribute_hidden; -extern const struct _IO_jump_t _IO_old_file_jumps attribute_hidden; -extern const struct _IO_jump_t _IO_streambuf_jumps; -extern const struct _IO_jump_t _IO_old_proc_jumps attribute_hidden; -extern const struct _IO_jump_t _IO_str_jumps attribute_hidden; -extern const struct _IO_jump_t _IO_wstr_jumps attribute_hidden; +extern int __printf_buffer_as_file_overflow (FILE *fp, int ch); +extern size_t __printf_buffer_as_file_xsputn (FILE *fp, const void *buf, + size_t len); +extern wint_t __wprintf_buffer_as_file_overflow (FILE *fp, int ch); +extern size_t __wprintf_buffer_as_file_xsputn (FILE *fp, const void *buf, + size_t len); + +enum +{ + IO_STR_JUMPS = 0, + IO_WSTR_JUMPS = 1, + IO_FILE_JUMPS = 2, + IO_FILE_JUMPS_MMAP = 3, + IO_FILE_JUMPS_MAYBE_MMAP = 4, + IO_WFILE_JUMPS = 5, + IO_WFILE_JUMPS_MMAP = 6, + IO_WFILE_JUMPS_MAYBE_MMAP = 7, + IO_COOKIE_JUMPS = 8, + IO_PROC_JUMPS = 9, + IO_MEM_JUMPS = 10, + IO_WMEM_JUMPS = 11, + IO_PRINTF_BUFFER_AS_FILE_JUMPS = 12, + IO_WPRINTF_BUFFER_AS_FILE_JUMPS = 13, +#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_1) + IO_OLD_FILE_JUMPS = 14, + IO_OLD_PROC_JUMPS = 15, + IO_OLD_COOKIED_JUMPS = 16, + IO_VTABLES_NUM = IO_OLD_COOKIED_JUMPS + 1, +#elif SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_2) + IO_OLD_COOKIED_JUMPS = 14, + IO_VTABLES_NUM = IO_OLD_COOKIED_JUMPS + 1, +#else + IO_VTABLES_NUM = IO_WPRINTF_BUFFER_AS_FILE_JUMPS + 1 +#endif +}; +#define IO_VTABLES_LEN (IO_VTABLES_NUM * sizeof (struct _IO_jump_t)) + +extern const struct _IO_jump_t __io_vtables[] attribute_hidden; +#define _IO_str_jumps (__io_vtables[IO_STR_JUMPS]) +#define _IO_wstr_jumps (__io_vtables[IO_WSTR_JUMPS]) +#define _IO_file_jumps (__io_vtables[IO_FILE_JUMPS]) +#define _IO_file_jumps_mmap (__io_vtables[IO_FILE_JUMPS_MMAP]) +#define _IO_file_jumps_maybe_mmap (__io_vtables[IO_FILE_JUMPS_MAYBE_MMAP]) +#define _IO_wfile_jumps (__io_vtables[IO_WFILE_JUMPS]) +#define _IO_wfile_jumps_mmap (__io_vtables[IO_WFILE_JUMPS_MMAP]) +#define _IO_wfile_jumps_maybe_mmap (__io_vtables[IO_WFILE_JUMPS_MAYBE_MMAP]) +#define _IO_cookie_jumps (__io_vtables[IO_COOKIE_JUMPS]) +#define _IO_proc_jumps (__io_vtables[IO_PROC_JUMPS]) +#define _IO_mem_jumps (__io_vtables[IO_MEM_JUMPS]) +#define _IO_wmem_jumps (__io_vtables[IO_WMEM_JUMPS]) +#define _IO_printf_buffer_as_file_jumps (__io_vtables[IO_PRINTF_BUFFER_AS_FILE_JUMPS]) +#define _IO_wprintf_buffer_as_file_jumps (__io_vtables[IO_WPRINTF_BUFFER_AS_FILE_JUMPS]) +#define _IO_old_file_jumps (__io_vtables[IO_OLD_FILE_JUMPS]) +#define _IO_old_proc_jumps (__io_vtables[IO_OLD_PROC_JUMPS]) +#define _IO_old_cookie_jumps (__io_vtables[IO_OLD_COOKIED_JUMPS]) + +#ifdef SHARED +# define libio_static_fn_required(name) +#else +# define libio_static_fn_required(name) __asm (".globl " #name); +#endif + extern int _IO_do_write (FILE *, const char *, size_t); libc_hidden_proto (_IO_do_write) extern int _IO_new_do_write (FILE *, const char *, size_t); @@ -593,6 +642,14 @@ extern void _IO_new_file_init_internal (struct _IO_FILE_plus *) extern FILE* _IO_new_file_setbuf (FILE *, char *, ssize_t); extern FILE* _IO_file_setbuf_mmap (FILE *, char *, ssize_t); extern int _IO_new_file_sync (FILE *); +extern int _IO_file_sync_mmap (FILE *) attribute_hidden; +extern size_t _IO_file_xsgetn_maybe_mmap (FILE *fp, void *data, size_t n) + attribute_hidden; +extern size_t _IO_file_xsgetn_mmap (FILE *fp, void *data, size_t n) + attribute_hidden; +extern off64_t _IO_file_seekoff_maybe_mmap (FILE *fp, off64_t offset, int dir, + int mode) + attribute_hidden; extern int _IO_new_file_underflow (FILE *); extern int _IO_new_file_overflow (FILE *, int); extern off64_t _IO_new_file_seekoff (FILE *, off64_t, int, int); @@ -625,6 +682,10 @@ extern wint_t _IO_wfile_overflow (FILE *, wint_t); libc_hidden_proto (_IO_wfile_overflow) extern off64_t _IO_wfile_seekoff (FILE *, off64_t, int, int); libc_hidden_proto (_IO_wfile_seekoff) +extern wint_t _IO_wfile_underflow_maybe_mmap (FILE *fp) + attribute_hidden; +extern wint_t _IO_wfile_underflow_mmap (FILE *fp) + attribute_hidden; /* Jumptable functions for proc_files. */ extern FILE* _IO_proc_open (FILE *, const char *, const char *) @@ -643,13 +704,41 @@ extern int _IO_str_overflow (FILE *, int) __THROW; libc_hidden_proto (_IO_str_overflow) extern int _IO_str_pbackfail (FILE *, int) __THROW; libc_hidden_proto (_IO_str_pbackfail) -extern off64_t _IO_str_seekoff (FILE *, off64_t, int, int) __THROW; +extern off64_t _IO_str_seekoff (FILE *, off64_t, int, int) __THROW + ; libc_hidden_proto (_IO_str_seekoff) extern void _IO_str_finish (FILE *, int) __THROW; +extern int _IO_str_chk_overflow (FILE *fp, int c) __THROW + attribute_hidden; + +/* Jumptable functions for fopencookie. */ +extern ssize_t _IO_cookie_read (FILE *fp, void *buf, ssize_t size) + attribute_hidden; +extern ssize_t _IO_cookie_write (FILE *fp, const void *buf, ssize_t size) + attribute_hidden; +extern off64_t _IO_cookie_seek (FILE *fp, off64_t offset, int dir) + attribute_hidden; +extern int _IO_cookie_close (FILE *fp) attribute_hidden; +extern off64_t _IO_cookie_seekoff (FILE *fp, off64_t offset, int dir, int mode) + attribute_hidden; +extern off64_t _IO_old_cookie_seek (FILE *fp, off64_t offset, int dir) + attribute_hidden; + +/* Jumptable functions for obstack. */ +extern int __IO_obstack_overflow (FILE *fp, int c) attribute_hidden; +extern size_t __IO_obstack_xsputn (FILE *fp, const void *data, size_t n) + attribute_hidden; + +/* Jumptable functions for open_{w}memstream. */ +extern int _IO_mem_sync (FILE* fp) __THROW attribute_hidden; +extern void _IO_mem_finish (FILE* fp, int) __THROW attribute_hidden; +extern int _IO_wmem_sync (FILE* fp) __THROW attribute_hidden; +extern void _IO_wmem_finish (FILE* fp, int) __THROW attribute_hidden; /* Other strfile functions */ struct _IO_strfile_; extern ssize_t _IO_str_count (FILE *) __THROW; +extern int _IO_strn_overflow (FILE *fp, int c) __THROW attribute_hidden; /* And the wide character versions. */ extern void _IO_wstr_init_static (FILE *, wchar_t *, size_t, wchar_t *) @@ -662,6 +751,10 @@ extern off64_t _IO_wstr_seekoff (FILE *, off64_t, int, int) extern wint_t _IO_wstr_pbackfail (FILE *, wint_t) __THROW; extern void _IO_wstr_finish (FILE *, int) __THROW; +/* Helper functions. */ +int _IO_helper_overflow (FILE *s, int c); +int _IO_whelper_overflow (FILE *s, int c); + /* Internal versions of v*printf that take an additional flags parameter. */ extern int __vfprintf_internal (FILE *fp, const char *format, va_list ap, @@ -895,14 +988,6 @@ _IO_acquire_lock_fct (FILE **p) } while (0) #endif -/* Collect all vtables in a special section for vtable verification. - These symbols cover the extent of this section. */ -symbol_set_declare (__libc_IO_vtables) - -/* libio vtables need to carry this attribute so that they pass - validation. */ -#define libio_vtable __attribute__ ((section ("__libc_IO_vtables"))) - #ifdef SHARED /* If equal to &_IO_vtable_check (with pointer guard protection), unknown vtable pointers are valid. This function pointer is solely @@ -937,12 +1022,9 @@ void _IO_vtable_check (void) attribute_hidden; static inline const struct _IO_jump_t * IO_validate_vtable (const struct _IO_jump_t *vtable) { - /* Fast path: The vtable pointer is within the __libc_IO_vtables - section. */ - uintptr_t section_length = __stop___libc_IO_vtables - __start___libc_IO_vtables; uintptr_t ptr = (uintptr_t) vtable; - uintptr_t offset = ptr - (uintptr_t) __start___libc_IO_vtables; - if (__glibc_unlikely (offset >= section_length)) + uintptr_t offset = ptr - (uintptr_t) &__io_vtables; + if (__glibc_unlikely (offset >= IO_VTABLES_LEN)) /* The vtable pointer is not in the expected section. Use the slow path, which will terminate the process if necessary. */ _IO_vtable_check (); diff --git a/libio/memstream.c b/libio/memstream.c index ad5726b..90b42d1 100644 --- a/libio/memstream.c +++ b/libio/memstream.c @@ -29,34 +29,6 @@ struct _IO_FILE_memstream }; -static int _IO_mem_sync (FILE* fp) __THROW; -static void _IO_mem_finish (FILE* fp, int) __THROW; - - -static const struct _IO_jump_t _IO_mem_jumps libio_vtable = -{ - JUMP_INIT_DUMMY, - JUMP_INIT (finish, _IO_mem_finish), - JUMP_INIT (overflow, _IO_str_overflow), - JUMP_INIT (underflow, _IO_str_underflow), - JUMP_INIT (uflow, _IO_default_uflow), - JUMP_INIT (pbackfail, _IO_str_pbackfail), - JUMP_INIT (xsputn, _IO_default_xsputn), - JUMP_INIT (xsgetn, _IO_default_xsgetn), - JUMP_INIT (seekoff, _IO_str_seekoff), - JUMP_INIT (seekpos, _IO_default_seekpos), - JUMP_INIT (setbuf, _IO_default_setbuf), - JUMP_INIT (sync, _IO_mem_sync), - JUMP_INIT (doallocate, _IO_default_doallocate), - JUMP_INIT (read, _IO_default_read), - JUMP_INIT (write, _IO_default_write), - JUMP_INIT (seek, _IO_default_seek), - JUMP_INIT (close, _IO_default_close), - JUMP_INIT (stat, _IO_default_stat), - JUMP_INIT(showmanyc, _IO_default_showmanyc), - JUMP_INIT(imbue, _IO_default_imbue) -}; - /* Open a stream that writes into a malloc'd buffer that is expanded as necessary. *BUFLOC and *SIZELOC are updated with the buffer's location and the number of characters written on fflush or fclose. */ @@ -105,7 +77,7 @@ libc_hidden_def (__open_memstream) weak_alias (__open_memstream, open_memstream) -static int +int _IO_mem_sync (FILE *fp) { struct _IO_FILE_memstream *mp = (struct _IO_FILE_memstream *) fp; @@ -123,7 +95,7 @@ _IO_mem_sync (FILE *fp) } -static void +void _IO_mem_finish (FILE *fp, int dummy) { struct _IO_FILE_memstream *mp = (struct _IO_FILE_memstream *) fp; diff --git a/libio/oldfileops.c b/libio/oldfileops.c index dd455a8..d6abbfd 100644 --- a/libio/oldfileops.c +++ b/libio/oldfileops.c @@ -716,29 +716,6 @@ _IO_old_file_xsputn (FILE *f, const void *data, size_t n) return n - to_do; } - -const struct _IO_jump_t _IO_old_file_jumps libio_vtable = -{ - JUMP_INIT_DUMMY, - JUMP_INIT(finish, _IO_old_file_finish), - JUMP_INIT(overflow, _IO_old_file_overflow), - JUMP_INIT(underflow, _IO_old_file_underflow), - JUMP_INIT(uflow, _IO_default_uflow), - JUMP_INIT(pbackfail, _IO_default_pbackfail), - JUMP_INIT(xsputn, _IO_old_file_xsputn), - JUMP_INIT(xsgetn, _IO_default_xsgetn), - JUMP_INIT(seekoff, _IO_old_file_seekoff), - JUMP_INIT(seekpos, _IO_default_seekpos), - JUMP_INIT(setbuf, _IO_old_file_setbuf), - JUMP_INIT(sync, _IO_old_file_sync), - JUMP_INIT(doallocate, _IO_file_doallocate), - JUMP_INIT(read, _IO_file_read), - JUMP_INIT(write, _IO_old_file_write), - JUMP_INIT(seek, _IO_file_seek), - JUMP_INIT(close, _IO_file_close), - JUMP_INIT(stat, _IO_file_stat) -}; - compat_symbol (libc, _IO_old_do_write, _IO_do_write, GLIBC_2_0); compat_symbol (libc, _IO_old_file_attach, _IO_file_attach, GLIBC_2_0); compat_symbol (libc, _IO_old_file_close_it, _IO_file_close_it, GLIBC_2_0); diff --git a/libio/oldiopopen.c b/libio/oldiopopen.c index aa5e379..b3eccc1 100644 --- a/libio/oldiopopen.c +++ b/libio/oldiopopen.c @@ -208,29 +208,6 @@ _IO_old_proc_close (FILE *fp) return wstatus; } -const struct _IO_jump_t _IO_old_proc_jumps libio_vtable = { - JUMP_INIT_DUMMY, - JUMP_INIT(finish, _IO_old_file_finish), - JUMP_INIT(overflow, _IO_old_file_overflow), - JUMP_INIT(underflow, _IO_old_file_underflow), - JUMP_INIT(uflow, _IO_default_uflow), - JUMP_INIT(pbackfail, _IO_default_pbackfail), - JUMP_INIT(xsputn, _IO_old_file_xsputn), - JUMP_INIT(xsgetn, _IO_default_xsgetn), - JUMP_INIT(seekoff, _IO_old_file_seekoff), - JUMP_INIT(seekpos, _IO_default_seekpos), - JUMP_INIT(setbuf, _IO_old_file_setbuf), - JUMP_INIT(sync, _IO_old_file_sync), - JUMP_INIT(doallocate, _IO_file_doallocate), - JUMP_INIT(read, _IO_file_read), - JUMP_INIT(write, _IO_old_file_write), - JUMP_INIT(seek, _IO_file_seek), - JUMP_INIT(close, _IO_old_proc_close), - JUMP_INIT(stat, _IO_file_stat), - JUMP_INIT(showmanyc, _IO_default_showmanyc), - JUMP_INIT(imbue, _IO_default_imbue) -}; - strong_alias (_IO_old_popen, __old_popen) compat_symbol (libc, _IO_old_popen, _IO_popen, GLIBC_2_0); compat_symbol (libc, __old_popen, popen, GLIBC_2_0); diff --git a/libio/stdio.c b/libio/stdio.c index fd94b76..c7c1b85 100644 --- a/libio/stdio.c +++ b/libio/stdio.c @@ -33,3 +33,6 @@ FILE *stdin = (FILE *) &_IO_2_1_stdin_; FILE *stdout = (FILE *) &_IO_2_1_stdout_; FILE *stderr = (FILE *) &_IO_2_1_stderr_; + +libio_static_fn_required (_IO_file_open); +libio_static_fn_required (_IO_file_doallocate); diff --git a/libio/strfile.h b/libio/strfile.h index c50b34a..f21100f 100644 --- a/libio/strfile.h +++ b/libio/strfile.h @@ -78,8 +78,6 @@ typedef struct wchar_t overflow_buf[64]; } _IO_wstrnfile; -extern const struct _IO_jump_t _IO_wstrn_jumps attribute_hidden; - /* Initialize an _IO_strfile SF to read from narrow string STRING, and return the corresponding FILE object. It is not necessary to fclose the FILE when it is no longer needed. */ diff --git a/libio/strops.c b/libio/strops.c index b5c850b..6379a87 100644 --- a/libio/strops.c +++ b/libio/strops.c @@ -352,27 +352,3 @@ _IO_str_finish (FILE *fp, int dummy) _IO_default_finish (fp, 0); } - -const struct _IO_jump_t _IO_str_jumps libio_vtable = -{ - JUMP_INIT_DUMMY, - JUMP_INIT(finish, _IO_str_finish), - JUMP_INIT(overflow, _IO_str_overflow), - JUMP_INIT(underflow, _IO_str_underflow), - JUMP_INIT(uflow, _IO_default_uflow), - JUMP_INIT(pbackfail, _IO_str_pbackfail), - JUMP_INIT(xsputn, _IO_default_xsputn), - JUMP_INIT(xsgetn, _IO_default_xsgetn), - JUMP_INIT(seekoff, _IO_str_seekoff), - JUMP_INIT(seekpos, _IO_default_seekpos), - JUMP_INIT(setbuf, _IO_default_setbuf), - JUMP_INIT(sync, _IO_default_sync), - JUMP_INIT(doallocate, _IO_default_doallocate), - JUMP_INIT(read, _IO_default_read), - JUMP_INIT(write, _IO_default_write), - JUMP_INIT(seek, _IO_default_seek), - JUMP_INIT(close, _IO_default_close), - JUMP_INIT(stat, _IO_default_stat), - JUMP_INIT(showmanyc, _IO_default_showmanyc), - JUMP_INIT(imbue, _IO_default_imbue) -}; diff --git a/libio/tst-vtables-interposed.c b/libio/tst-vtables-interposed.c index 9068e53..e656f2b 100644 --- a/libio/tst-vtables-interposed.c +++ b/libio/tst-vtables-interposed.c @@ -21,7 +21,12 @@ /* Provide an interposed definition of the standard file handles with our own vtable. stdout/stdin/stderr will not work as a result, but a succesful test does not print anything, so this is fine. */ +#include "libioP.h" +#undef _IO_file_jumps #define _IO_file_jumps jumps +#undef _IO_wfile_jumps +extern const struct _IO_jump_t _IO_wfile_jumps; +#define _IO_wfile_jumps _IO_wfile_jumps #include "stdfiles.c" static int diff --git a/libio/vtables.c b/libio/vtables.c index 5d5906a..3facd40 100644 --- a/libio/vtables.c +++ b/libio/vtables.c @@ -21,6 +21,472 @@ #include <stdio.h> #include <ldsodefs.h> #include <pointer_guard.h> +#include <libio-macros.h> + +/* Both _IO_str_* and _IO_new_file functions are pulled into every link (from + stdio initialization). */ +#ifndef SHARED +/* NB: the following directives do add pragma weak for _IO_default _* and + _IO_wdefault_* symbols to potentially avoid link failures, since they + are always used when the __io_vtables is used. */ +# pragma weak _IO_wstr_finish +# pragma weak _IO_wstr_overflow +# pragma weak _IO_wstr_pbackfail +# pragma weak _IO_wstr_seekoff +# pragma weak _IO_wstr_underflow + +# pragma weak _IO_file_close +# pragma weak _IO_file_close_mmap +# pragma weak _IO_file_doallocate +# pragma weak _IO_file_finish +# pragma weak _IO_file_jumps_alias +# pragma weak _IO_file_overflow +# pragma weak _IO_file_read +# pragma weak _IO_file_seek +# pragma weak _IO_file_seekoff_maybe_mmap +# pragma weak _IO_file_seekoff_mmap +# pragma weak _IO_file_setbuf +# pragma weak _IO_file_setbuf_mmap +# pragma weak _IO_file_setbuf_mmap +# pragma weak _IO_file_stat +# pragma weak _IO_file_sync +# pragma weak _IO_file_sync_mmap +# pragma weak _IO_file_underflow +# pragma weak _IO_file_underflow_maybe_mmap +# pragma weak _IO_file_underflow_mmap +# pragma weak _IO_file_xsgetn +# pragma weak _IO_file_xsgetn_maybe_mmap +# pragma weak _IO_file_xsgetn_mmap +# pragma weak _IO_file_xsputn + +# pragma weak _IO_wfile_overflow +# pragma weak _IO_wfile_sync +# pragma weak _IO_wfile_underflow +# pragma weak _IO_wfile_underflow_maybe_mmap +# pragma weak _IO_wfile_underflow_mmap +# pragma weak _IO_wfile_doallocate +# pragma weak _IO_wfile_jumps_alia +# pragma weak _IO_wfile_seekoff +# pragma weak _IO_wfile_xsputn + +# pragma weak _IO_new_proc_close + +# pragma weak _IO_cookie_close +# pragma weak _IO_cookie_read +# pragma weak _IO_cookie_seek +# pragma weak _IO_cookie_seekoff +# pragma weak _IO_cookie_write + +# pragma weak _IO_mem_finish +# pragma weak _IO_mem_sync + +# pragma weak _IO_wmem_finish +# pragma weak _IO_wmem_sync + +# pragma weak __printf_buffer_as_file_overflow +# pragma weak __printf_buffer_as_file_xsputn + +# pragma weak __wprintf_buffer_as_file_overflow +# pragma weak __wprintf_buffer_as_file_xsputn +#endif + +const struct _IO_jump_t __io_vtables[IO_VTABLES_LEN] attribute_relro = +{ + /* _IO_str_jumps */ + [IO_STR_JUMPS] = + { + JUMP_INIT_DUMMY, + JUMP_INIT (finish, _IO_str_finish), + JUMP_INIT (overflow, _IO_str_overflow), + JUMP_INIT (underflow, _IO_str_underflow), + JUMP_INIT (uflow, _IO_default_uflow), + JUMP_INIT (pbackfail, _IO_str_pbackfail), + JUMP_INIT (xsputn, _IO_default_xsputn), + JUMP_INIT (xsgetn, _IO_default_xsgetn), + JUMP_INIT (seekoff, _IO_str_seekoff), + JUMP_INIT (seekpos, _IO_default_seekpos), + JUMP_INIT (setbuf, _IO_default_setbuf), + JUMP_INIT (sync, _IO_default_sync), + JUMP_INIT (doallocate, _IO_default_doallocate), + JUMP_INIT (read, _IO_default_read), + JUMP_INIT (write, _IO_default_write), + JUMP_INIT (seek, _IO_default_seek), + JUMP_INIT (close, _IO_default_close), + JUMP_INIT (stat, _IO_default_stat), + JUMP_INIT (showmanyc, _IO_default_showmanyc), + JUMP_INIT (imbue, _IO_default_imbue) + }, + /* _IO_wstr_jumps */ + [IO_WSTR_JUMPS] = { + JUMP_INIT_DUMMY, + JUMP_INIT (finish, _IO_wstr_finish), + JUMP_INIT (overflow, (_IO_overflow_t) _IO_wstr_overflow), + JUMP_INIT (underflow, (_IO_underflow_t) _IO_wstr_underflow), + JUMP_INIT (uflow, (_IO_underflow_t) _IO_wdefault_uflow), + JUMP_INIT (pbackfail, (_IO_pbackfail_t) _IO_wstr_pbackfail), + JUMP_INIT (xsputn, _IO_wdefault_xsputn), + JUMP_INIT (xsgetn, _IO_wdefault_xsgetn), + JUMP_INIT (seekoff, _IO_wstr_seekoff), + JUMP_INIT (seekpos, _IO_default_seekpos), + JUMP_INIT (setbuf, _IO_default_setbuf), + JUMP_INIT (sync, _IO_default_sync), + JUMP_INIT (doallocate, _IO_wdefault_doallocate), + JUMP_INIT (read, _IO_default_read), + JUMP_INIT (write, _IO_default_write), + JUMP_INIT (seek, _IO_default_seek), + JUMP_INIT (close, _IO_default_close), + JUMP_INIT (stat, _IO_default_stat), + JUMP_INIT (showmanyc, _IO_default_showmanyc), + JUMP_INIT (imbue, _IO_default_imbue) + }, + /* _IO_file_jumps */ + [IO_FILE_JUMPS] = { + JUMP_INIT_DUMMY, + JUMP_INIT (finish, _IO_file_finish), + JUMP_INIT (overflow, _IO_file_overflow), + JUMP_INIT (underflow, _IO_file_underflow), + JUMP_INIT (uflow, _IO_default_uflow), + JUMP_INIT (pbackfail, _IO_default_pbackfail), + JUMP_INIT (xsputn, _IO_file_xsputn), + JUMP_INIT (xsgetn, _IO_file_xsgetn), + JUMP_INIT (seekoff, _IO_new_file_seekoff), + JUMP_INIT (seekpos, _IO_default_seekpos), + JUMP_INIT (setbuf, _IO_new_file_setbuf), + JUMP_INIT (sync, _IO_new_file_sync), + JUMP_INIT (doallocate, _IO_file_doallocate), + JUMP_INIT (read, _IO_file_read), + JUMP_INIT (write, _IO_new_file_write), + JUMP_INIT (seek, _IO_file_seek), + JUMP_INIT (close, _IO_file_close), + JUMP_INIT (stat, _IO_file_stat), + JUMP_INIT (showmanyc, _IO_default_showmanyc), + JUMP_INIT (imbue, _IO_default_imbue) + }, + /* _IO_file_jumps_mmap */ + [IO_FILE_JUMPS_MMAP] = { + JUMP_INIT_DUMMY, + JUMP_INIT (finish, _IO_file_finish), + JUMP_INIT (overflow, _IO_file_overflow), + JUMP_INIT (underflow, _IO_file_underflow_mmap), + JUMP_INIT (uflow, _IO_default_uflow), + JUMP_INIT (pbackfail, _IO_default_pbackfail), + JUMP_INIT (xsputn, _IO_new_file_xsputn), + JUMP_INIT (xsgetn, _IO_file_xsgetn_mmap), + JUMP_INIT (seekoff, _IO_file_seekoff_mmap), + JUMP_INIT (seekpos, _IO_default_seekpos), + JUMP_INIT (setbuf, (_IO_setbuf_t) _IO_file_setbuf_mmap), + JUMP_INIT (sync, _IO_file_sync_mmap), + JUMP_INIT (doallocate, _IO_file_doallocate), + JUMP_INIT (read, _IO_file_read), + JUMP_INIT (write, _IO_new_file_write), + JUMP_INIT (seek, _IO_file_seek), + JUMP_INIT (close, _IO_file_close_mmap), + JUMP_INIT (stat, _IO_file_stat), + JUMP_INIT (showmanyc, _IO_default_showmanyc), + JUMP_INIT (imbue, _IO_default_imbue) + }, + /* _IO_file_jumps_maybe_mmap */ + [IO_FILE_JUMPS_MAYBE_MMAP] = { + JUMP_INIT_DUMMY, + JUMP_INIT (finish, _IO_file_finish), + JUMP_INIT (overflow, _IO_file_overflow), + JUMP_INIT (underflow, _IO_file_underflow_maybe_mmap), + JUMP_INIT (uflow, _IO_default_uflow), + JUMP_INIT (pbackfail, _IO_default_pbackfail), + JUMP_INIT (xsputn, _IO_new_file_xsputn), + JUMP_INIT (xsgetn, _IO_file_xsgetn_maybe_mmap), + JUMP_INIT (seekoff, _IO_file_seekoff_maybe_mmap), + JUMP_INIT (seekpos, _IO_default_seekpos), + JUMP_INIT (setbuf, (_IO_setbuf_t) _IO_file_setbuf_mmap), + JUMP_INIT (sync, _IO_new_file_sync), + JUMP_INIT (doallocate, _IO_file_doallocate), + JUMP_INIT (read, _IO_file_read), + JUMP_INIT (write, _IO_new_file_write), + JUMP_INIT (seek, _IO_file_seek), + JUMP_INIT (close, _IO_file_close), + JUMP_INIT (stat, _IO_file_stat), + JUMP_INIT (showmanyc, _IO_default_showmanyc), + JUMP_INIT (imbue, _IO_default_imbue) + }, + /* _IO_wfile_jumps */ + [IO_WFILE_JUMPS] = { + JUMP_INIT_DUMMY, + JUMP_INIT (finish, _IO_new_file_finish), + JUMP_INIT (overflow, (_IO_overflow_t) _IO_wfile_overflow), + JUMP_INIT (underflow, (_IO_underflow_t) _IO_wfile_underflow), + JUMP_INIT (uflow, (_IO_underflow_t) _IO_wdefault_uflow), + JUMP_INIT (pbackfail, (_IO_pbackfail_t) _IO_wdefault_pbackfail), + JUMP_INIT (xsputn, _IO_wfile_xsputn), + JUMP_INIT (xsgetn, _IO_file_xsgetn), + JUMP_INIT (seekoff, _IO_wfile_seekoff), + JUMP_INIT (seekpos, _IO_default_seekpos), + JUMP_INIT (setbuf, _IO_new_file_setbuf), + JUMP_INIT (sync, (_IO_sync_t) _IO_wfile_sync), + JUMP_INIT (doallocate, _IO_wfile_doallocate), + JUMP_INIT (read, _IO_file_read), + JUMP_INIT (write, _IO_new_file_write), + JUMP_INIT (seek, _IO_file_seek), + JUMP_INIT (close, _IO_file_close), + JUMP_INIT (stat, _IO_file_stat), + JUMP_INIT (showmanyc, _IO_default_showmanyc), + JUMP_INIT (imbue, _IO_default_imbue) + }, + /* _IO_wfile_jumps_mmap */ + [IO_WFILE_JUMPS_MMAP] = { + JUMP_INIT_DUMMY, + JUMP_INIT (finish, _IO_new_file_finish), + JUMP_INIT (overflow, (_IO_overflow_t) _IO_wfile_overflow), + JUMP_INIT (underflow, (_IO_underflow_t) _IO_wfile_underflow_mmap), + JUMP_INIT (uflow, (_IO_underflow_t) _IO_wdefault_uflow), + JUMP_INIT (pbackfail, (_IO_pbackfail_t) _IO_wdefault_pbackfail), + JUMP_INIT (xsputn, _IO_wfile_xsputn), + JUMP_INIT (xsgetn, _IO_file_xsgetn), + JUMP_INIT (seekoff, _IO_wfile_seekoff), + JUMP_INIT (seekpos, _IO_default_seekpos), + JUMP_INIT (setbuf, _IO_file_setbuf_mmap), + JUMP_INIT (sync, (_IO_sync_t) _IO_wfile_sync), + JUMP_INIT (doallocate, _IO_wfile_doallocate), + JUMP_INIT (read, _IO_file_read), + JUMP_INIT (write, _IO_new_file_write), + JUMP_INIT (seek, _IO_file_seek), + JUMP_INIT (close, _IO_file_close_mmap), + JUMP_INIT (stat, _IO_file_stat), + JUMP_INIT (showmanyc, _IO_default_showmanyc), + JUMP_INIT (imbue, _IO_default_imbue) + }, + /* _IO_wfile_jumps_maybe_mmap */ + [IO_WFILE_JUMPS_MAYBE_MMAP] = { + JUMP_INIT_DUMMY, + JUMP_INIT (finish, _IO_new_file_finish), + JUMP_INIT (overflow, (_IO_overflow_t) _IO_wfile_overflow), + JUMP_INIT (underflow, (_IO_underflow_t) _IO_wfile_underflow_maybe_mmap), + JUMP_INIT (uflow, (_IO_underflow_t) _IO_wdefault_uflow), + JUMP_INIT (pbackfail, (_IO_pbackfail_t) _IO_wdefault_pbackfail), + JUMP_INIT (xsputn, _IO_wfile_xsputn), + JUMP_INIT (xsgetn, _IO_file_xsgetn), + JUMP_INIT (seekoff, _IO_wfile_seekoff), + JUMP_INIT (seekpos, _IO_default_seekpos), + JUMP_INIT (setbuf, _IO_file_setbuf_mmap), + JUMP_INIT (sync, (_IO_sync_t) _IO_wfile_sync), + JUMP_INIT (doallocate, _IO_wfile_doallocate), + JUMP_INIT (read, _IO_file_read), + JUMP_INIT (write, _IO_new_file_write), + JUMP_INIT (seek, _IO_file_seek), + JUMP_INIT (close, _IO_file_close), + JUMP_INIT (stat, _IO_file_stat), + JUMP_INIT (showmanyc, _IO_default_showmanyc), + JUMP_INIT (imbue, _IO_default_imbue) + }, + /* _IO_cookie_jumps */ + [IO_COOKIE_JUMPS] = { + JUMP_INIT_DUMMY, + JUMP_INIT (finish, _IO_file_finish), + JUMP_INIT (overflow, _IO_file_overflow), + JUMP_INIT (underflow, _IO_file_underflow), + JUMP_INIT (uflow, _IO_default_uflow), + JUMP_INIT (pbackfail, _IO_default_pbackfail), + JUMP_INIT (xsputn, _IO_file_xsputn), + JUMP_INIT (xsgetn, _IO_default_xsgetn), + JUMP_INIT (seekoff, _IO_cookie_seekoff), + JUMP_INIT (seekpos, _IO_default_seekpos), + JUMP_INIT (setbuf, _IO_file_setbuf), + JUMP_INIT (sync, _IO_file_sync), + JUMP_INIT (doallocate, _IO_file_doallocate), + JUMP_INIT (read, _IO_cookie_read), + JUMP_INIT (write, _IO_cookie_write), + JUMP_INIT (seek, _IO_cookie_seek), + JUMP_INIT (close, _IO_cookie_close), + JUMP_INIT (stat, _IO_default_stat), + JUMP_INIT (showmanyc, _IO_default_showmanyc), + JUMP_INIT (imbue, _IO_default_imbue), + }, + /* _IO_proc_jumps */ + [IO_PROC_JUMPS] = { + JUMP_INIT_DUMMY, + JUMP_INIT (finish, _IO_new_file_finish), + JUMP_INIT (overflow, _IO_new_file_overflow), + JUMP_INIT (underflow, _IO_new_file_underflow), + JUMP_INIT (uflow, _IO_default_uflow), + JUMP_INIT (pbackfail, _IO_default_pbackfail), + JUMP_INIT (xsputn, _IO_new_file_xsputn), + JUMP_INIT (xsgetn, _IO_default_xsgetn), + JUMP_INIT (seekoff, _IO_new_file_seekoff), + JUMP_INIT (seekpos, _IO_default_seekpos), + JUMP_INIT (setbuf, _IO_new_file_setbuf), + JUMP_INIT (sync, _IO_new_file_sync), + JUMP_INIT (doallocate, _IO_file_doallocate), + JUMP_INIT (read, _IO_file_read), + JUMP_INIT (write, _IO_new_file_write), + JUMP_INIT (seek, _IO_file_seek), + JUMP_INIT (close, _IO_new_proc_close), + JUMP_INIT (stat, _IO_file_stat), + JUMP_INIT (showmanyc, _IO_default_showmanyc), + JUMP_INIT (imbue, _IO_default_imbue) + }, + /* _IO_mem_jumps */ + [IO_MEM_JUMPS] = { + JUMP_INIT_DUMMY, + JUMP_INIT (finish, _IO_mem_finish), + JUMP_INIT (overflow, _IO_str_overflow), + JUMP_INIT (underflow, _IO_str_underflow), + JUMP_INIT (uflow, _IO_default_uflow), + JUMP_INIT (pbackfail, _IO_str_pbackfail), + JUMP_INIT (xsputn, _IO_default_xsputn), + JUMP_INIT (xsgetn, _IO_default_xsgetn), + JUMP_INIT (seekoff, _IO_str_seekoff), + JUMP_INIT (seekpos, _IO_default_seekpos), + JUMP_INIT (setbuf, _IO_default_setbuf), + JUMP_INIT (sync, _IO_mem_sync), + JUMP_INIT (doallocate, _IO_default_doallocate), + JUMP_INIT (read, _IO_default_read), + JUMP_INIT (write, _IO_default_write), + JUMP_INIT (seek, _IO_default_seek), + JUMP_INIT (close, _IO_default_close), + JUMP_INIT (stat, _IO_default_stat), + JUMP_INIT (showmanyc, _IO_default_showmanyc), + JUMP_INIT (imbue, _IO_default_imbue) + }, + /* _IO_wmem_jumps */ + [IO_WMEM_JUMPS] = { + JUMP_INIT_DUMMY, + JUMP_INIT (finish, _IO_wmem_finish), + JUMP_INIT (overflow, (_IO_overflow_t) _IO_wstr_overflow), + JUMP_INIT (underflow, (_IO_underflow_t) _IO_wstr_underflow), + JUMP_INIT (uflow, (_IO_underflow_t) _IO_wdefault_uflow), + JUMP_INIT (pbackfail, (_IO_pbackfail_t) _IO_wstr_pbackfail), + JUMP_INIT (xsputn, _IO_wdefault_xsputn), + JUMP_INIT (xsgetn, _IO_wdefault_xsgetn), + JUMP_INIT (seekoff, _IO_wstr_seekoff), + JUMP_INIT (seekpos, _IO_default_seekpos), + JUMP_INIT (setbuf, _IO_default_setbuf), + JUMP_INIT (sync, _IO_wmem_sync), + JUMP_INIT (doallocate, _IO_wdefault_doallocate), + JUMP_INIT (read, _IO_default_read), + JUMP_INIT (write, _IO_default_write), + JUMP_INIT (seek, _IO_default_seek), + JUMP_INIT (close, _IO_default_close), + JUMP_INIT (stat, _IO_default_stat), + JUMP_INIT (showmanyc, _IO_default_showmanyc), + JUMP_INIT (imbue, _IO_default_imbue) + }, + [IO_PRINTF_BUFFER_AS_FILE_JUMPS] = { + JUMP_INIT_DUMMY, + JUMP_INIT (finish, NULL), + JUMP_INIT (overflow, __printf_buffer_as_file_overflow), + JUMP_INIT (underflow, NULL), + JUMP_INIT (uflow, NULL), + JUMP_INIT (pbackfail, NULL), + JUMP_INIT (xsputn, __printf_buffer_as_file_xsputn), + JUMP_INIT (xsgetn, NULL), + JUMP_INIT (seekoff, NULL), + JUMP_INIT (seekpos, NULL), + JUMP_INIT (setbuf, NULL), + JUMP_INIT (sync, NULL), + JUMP_INIT (doallocate, NULL), + JUMP_INIT (read, NULL), + JUMP_INIT (write, NULL), + JUMP_INIT (seek, NULL), + JUMP_INIT (close, NULL), + JUMP_INIT (stat, NULL), + JUMP_INIT (showmanyc, NULL), + JUMP_INIT (imbue, NULL) + }, + [IO_WPRINTF_BUFFER_AS_FILE_JUMPS] = { + JUMP_INIT_DUMMY, + JUMP_INIT (finish, NULL), + JUMP_INIT (overflow, (_IO_overflow_t) __wprintf_buffer_as_file_overflow), + JUMP_INIT (underflow, NULL), + JUMP_INIT (uflow, NULL), + JUMP_INIT (pbackfail, NULL), + JUMP_INIT (xsputn, __wprintf_buffer_as_file_xsputn), + JUMP_INIT (xsgetn, NULL), + JUMP_INIT (seekoff, NULL), + JUMP_INIT (seekpos, NULL), + JUMP_INIT (setbuf, NULL), + JUMP_INIT (sync, NULL), + JUMP_INIT (doallocate, NULL), + JUMP_INIT (read, NULL), + JUMP_INIT (write, NULL), + JUMP_INIT (seek, NULL), + JUMP_INIT (close, NULL), + JUMP_INIT (stat, NULL), + JUMP_INIT (showmanyc, NULL), + JUMP_INIT (imbue, NULL) + }, + +#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_1) + /* _IO_old_file_jumps */ + [IO_OLD_FILE_JUMPS] = { + JUMP_INIT_DUMMY, + JUMP_INIT (finish, _IO_old_file_finish), + JUMP_INIT (overflow, _IO_old_file_overflow), + JUMP_INIT (underflow, _IO_old_file_underflow), + JUMP_INIT (uflow, _IO_default_uflow), + JUMP_INIT (pbackfail, _IO_default_pbackfail), + JUMP_INIT (xsputn, _IO_old_file_xsputn), + JUMP_INIT (xsgetn, _IO_default_xsgetn), + JUMP_INIT (seekoff, _IO_old_file_seekoff), + JUMP_INIT (seekpos, _IO_default_seekpos), + JUMP_INIT (setbuf, _IO_old_file_setbuf), + JUMP_INIT (sync, _IO_old_file_sync), + JUMP_INIT (doallocate, _IO_file_doallocate), + JUMP_INIT (read, _IO_file_read), + JUMP_INIT (write, _IO_old_file_write), + JUMP_INIT (seek, _IO_file_seek), + JUMP_INIT (close, _IO_file_close), + JUMP_INIT (stat, _IO_file_stat) + }, + /* _IO_old_proc_jumps */ + [IO_OLD_PROC_JUMPS] = { + JUMP_INIT_DUMMY, + JUMP_INIT (finish, _IO_old_file_finish), + JUMP_INIT (overflow, _IO_old_file_overflow), + JUMP_INIT (underflow, _IO_old_file_underflow), + JUMP_INIT (uflow, _IO_default_uflow), + JUMP_INIT (pbackfail, _IO_default_pbackfail), + JUMP_INIT (xsputn, _IO_old_file_xsputn), + JUMP_INIT (xsgetn, _IO_default_xsgetn), + JUMP_INIT (seekoff, _IO_old_file_seekoff), + JUMP_INIT (seekpos, _IO_default_seekpos), + JUMP_INIT (setbuf, _IO_old_file_setbuf), + JUMP_INIT (sync, _IO_old_file_sync), + JUMP_INIT (doallocate, _IO_file_doallocate), + JUMP_INIT (read, _IO_file_read), + JUMP_INIT (write, _IO_old_file_write), + JUMP_INIT (seek, _IO_file_seek), + JUMP_INIT (close, _IO_old_proc_close), + JUMP_INIT (stat, _IO_file_stat), + JUMP_INIT (showmanyc, _IO_default_showmanyc), + JUMP_INIT (imbue, _IO_default_imbue) + }, +#endif + +#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_2) + /* _IO_old_cookie_jumps */ + [IO_OLD_COOKIED_JUMPS] = { + JUMP_INIT_DUMMY, + JUMP_INIT (finish, _IO_file_finish), + JUMP_INIT (overflow, _IO_file_overflow), + JUMP_INIT (underflow, _IO_file_underflow), + JUMP_INIT (uflow, _IO_default_uflow), + JUMP_INIT (pbackfail, _IO_default_pbackfail), + JUMP_INIT (xsputn, _IO_file_xsputn), + JUMP_INIT (xsgetn, _IO_default_xsgetn), + JUMP_INIT (seekoff, _IO_cookie_seekoff), + JUMP_INIT (seekpos, _IO_default_seekpos), + JUMP_INIT (setbuf, _IO_file_setbuf), + JUMP_INIT (sync, _IO_file_sync), + JUMP_INIT (doallocate, _IO_file_doallocate), + JUMP_INIT (read, _IO_cookie_read), + JUMP_INIT (write, _IO_cookie_write), + JUMP_INIT (seek, _IO_old_cookie_seek), + JUMP_INIT (close, _IO_cookie_close), + JUMP_INIT (stat, _IO_default_stat), + JUMP_INIT (showmanyc, _IO_default_showmanyc), + JUMP_INIT (imbue, _IO_default_imbue), + }, +#endif +}; #ifdef SHARED @@ -82,3 +548,15 @@ check_stdfiles_vtables (void) IO_set_accept_foreign_vtables (&_IO_vtable_check); } #endif + +#define STR(s) XSTR(s) +#define XSTR(s) #s + +#undef _IO_file_jumps +#define _IO_file_jumps_alias "__io_vtables + " STR(IO_FILE_JUMPS_OFFSET) +declare_object_symbol_alias (_IO_file_jumps, _IO_file_jumps_alias, + IO_JUMP_T_SIZE) +#undef _IO_wfile_jumps +#define _IO_wfile_jumps_alias "__io_vtables + " STR(IO_WFILE_JUMPS_OFFSET) +declare_object_symbol_alias (_IO_wfile_jumps, _IO_wfile_jumps_alias, + IO_JUMP_T_SIZE) diff --git a/libio/wfileops.c b/libio/wfileops.c index cecea21..f16f6db 100644 --- a/libio/wfileops.c +++ b/libio/wfileops.c @@ -328,7 +328,7 @@ _IO_wfile_underflow (FILE *fp) libc_hidden_def (_IO_wfile_underflow) -static wint_t +wint_t _IO_wfile_underflow_mmap (FILE *fp) { struct _IO_codecvt *cd; @@ -389,7 +389,7 @@ _IO_wfile_underflow_mmap (FILE *fp) return WEOF; } -static wint_t +wint_t _IO_wfile_underflow_maybe_mmap (FILE *fp) { /* This is the first read attempt. Doing the underflow will choose mmap @@ -1017,78 +1017,3 @@ _IO_wfile_xsputn (FILE *f, const void *data, size_t n) return n - to_do; } libc_hidden_def (_IO_wfile_xsputn) - - -const struct _IO_jump_t _IO_wfile_jumps libio_vtable = -{ - JUMP_INIT_DUMMY, - JUMP_INIT(finish, _IO_new_file_finish), - JUMP_INIT(overflow, (_IO_overflow_t) _IO_wfile_overflow), - JUMP_INIT(underflow, (_IO_underflow_t) _IO_wfile_underflow), - JUMP_INIT(uflow, (_IO_underflow_t) _IO_wdefault_uflow), - JUMP_INIT(pbackfail, (_IO_pbackfail_t) _IO_wdefault_pbackfail), - JUMP_INIT(xsputn, _IO_wfile_xsputn), - JUMP_INIT(xsgetn, _IO_file_xsgetn), - JUMP_INIT(seekoff, _IO_wfile_seekoff), - JUMP_INIT(seekpos, _IO_default_seekpos), - JUMP_INIT(setbuf, _IO_new_file_setbuf), - JUMP_INIT(sync, (_IO_sync_t) _IO_wfile_sync), - JUMP_INIT(doallocate, _IO_wfile_doallocate), - JUMP_INIT(read, _IO_file_read), - JUMP_INIT(write, _IO_new_file_write), - JUMP_INIT(seek, _IO_file_seek), - JUMP_INIT(close, _IO_file_close), - JUMP_INIT(stat, _IO_file_stat), - JUMP_INIT(showmanyc, _IO_default_showmanyc), - JUMP_INIT(imbue, _IO_default_imbue) -}; -libc_hidden_data_def (_IO_wfile_jumps) - - -const struct _IO_jump_t _IO_wfile_jumps_mmap libio_vtable = -{ - JUMP_INIT_DUMMY, - JUMP_INIT(finish, _IO_new_file_finish), - JUMP_INIT(overflow, (_IO_overflow_t) _IO_wfile_overflow), - JUMP_INIT(underflow, (_IO_underflow_t) _IO_wfile_underflow_mmap), - JUMP_INIT(uflow, (_IO_underflow_t) _IO_wdefault_uflow), - JUMP_INIT(pbackfail, (_IO_pbackfail_t) _IO_wdefault_pbackfail), - JUMP_INIT(xsputn, _IO_wfile_xsputn), - JUMP_INIT(xsgetn, _IO_file_xsgetn), - JUMP_INIT(seekoff, _IO_wfile_seekoff), - JUMP_INIT(seekpos, _IO_default_seekpos), - JUMP_INIT(setbuf, _IO_file_setbuf_mmap), - JUMP_INIT(sync, (_IO_sync_t) _IO_wfile_sync), - JUMP_INIT(doallocate, _IO_wfile_doallocate), - JUMP_INIT(read, _IO_file_read), - JUMP_INIT(write, _IO_new_file_write), - JUMP_INIT(seek, _IO_file_seek), - JUMP_INIT(close, _IO_file_close_mmap), - JUMP_INIT(stat, _IO_file_stat), - JUMP_INIT(showmanyc, _IO_default_showmanyc), - JUMP_INIT(imbue, _IO_default_imbue) -}; - -const struct _IO_jump_t _IO_wfile_jumps_maybe_mmap libio_vtable = -{ - JUMP_INIT_DUMMY, - JUMP_INIT(finish, _IO_new_file_finish), - JUMP_INIT(overflow, (_IO_overflow_t) _IO_wfile_overflow), - JUMP_INIT(underflow, (_IO_underflow_t) _IO_wfile_underflow_maybe_mmap), - JUMP_INIT(uflow, (_IO_underflow_t) _IO_wdefault_uflow), - JUMP_INIT(pbackfail, (_IO_pbackfail_t) _IO_wdefault_pbackfail), - JUMP_INIT(xsputn, _IO_wfile_xsputn), - JUMP_INIT(xsgetn, _IO_file_xsgetn), - JUMP_INIT(seekoff, _IO_wfile_seekoff), - JUMP_INIT(seekpos, _IO_default_seekpos), - JUMP_INIT(setbuf, _IO_file_setbuf_mmap), - JUMP_INIT(sync, (_IO_sync_t) _IO_wfile_sync), - JUMP_INIT(doallocate, _IO_wfile_doallocate), - JUMP_INIT(read, _IO_file_read), - JUMP_INIT(write, _IO_new_file_write), - JUMP_INIT(seek, _IO_file_seek), - JUMP_INIT(close, _IO_file_close), - JUMP_INIT(stat, _IO_file_stat), - JUMP_INIT(showmanyc, _IO_default_showmanyc), - JUMP_INIT(imbue, _IO_default_imbue) -}; diff --git a/libio/wmemstream.c b/libio/wmemstream.c index 6560d70..7b04b15 100644 --- a/libio/wmemstream.c +++ b/libio/wmemstream.c @@ -30,34 +30,6 @@ struct _IO_FILE_wmemstream }; -static int _IO_wmem_sync (FILE* fp) __THROW; -static void _IO_wmem_finish (FILE* fp, int) __THROW; - - -static const struct _IO_jump_t _IO_wmem_jumps libio_vtable = -{ - JUMP_INIT_DUMMY, - JUMP_INIT (finish, _IO_wmem_finish), - JUMP_INIT (overflow, (_IO_overflow_t) _IO_wstr_overflow), - JUMP_INIT (underflow, (_IO_underflow_t) _IO_wstr_underflow), - JUMP_INIT (uflow, (_IO_underflow_t) _IO_wdefault_uflow), - JUMP_INIT (pbackfail, (_IO_pbackfail_t) _IO_wstr_pbackfail), - JUMP_INIT (xsputn, _IO_wdefault_xsputn), - JUMP_INIT (xsgetn, _IO_wdefault_xsgetn), - JUMP_INIT (seekoff, _IO_wstr_seekoff), - JUMP_INIT (seekpos, _IO_default_seekpos), - JUMP_INIT (setbuf, _IO_default_setbuf), - JUMP_INIT (sync, _IO_wmem_sync), - JUMP_INIT (doallocate, _IO_wdefault_doallocate), - JUMP_INIT (read, _IO_default_read), - JUMP_INIT (write, _IO_default_write), - JUMP_INIT (seek, _IO_default_seek), - JUMP_INIT (close, _IO_default_close), - JUMP_INIT (stat, _IO_default_stat), - JUMP_INIT (showmanyc, _IO_default_showmanyc), - JUMP_INIT (imbue, _IO_default_imbue) -}; - /* Open a stream that writes into a malloc'd buffer that is expanded as necessary. *BUFLOC and *SIZELOC are updated with the buffer's location and the number of characters written on fflush or fclose. */ @@ -105,7 +77,7 @@ open_wmemstream (wchar_t **bufloc, size_t *sizeloc) } -static int +int _IO_wmem_sync (FILE *fp) { struct _IO_FILE_wmemstream *mp = (struct _IO_FILE_wmemstream *) fp; @@ -124,7 +96,7 @@ _IO_wmem_sync (FILE *fp) } -static void +void _IO_wmem_finish (FILE *fp, int dummy) { struct _IO_FILE_wmemstream *mp = (struct _IO_FILE_wmemstream *) fp; diff --git a/libio/wstrops.c b/libio/wstrops.c index 9c9d303..632fc12 100644 --- a/libio/wstrops.c +++ b/libio/wstrops.c @@ -361,27 +361,3 @@ _IO_wstr_finish (FILE *fp, int dummy) _IO_wdefault_finish (fp, 0); } - -const struct _IO_jump_t _IO_wstr_jumps libio_vtable = -{ - JUMP_INIT_DUMMY, - JUMP_INIT(finish, _IO_wstr_finish), - JUMP_INIT(overflow, (_IO_overflow_t) _IO_wstr_overflow), - JUMP_INIT(underflow, (_IO_underflow_t) _IO_wstr_underflow), - JUMP_INIT(uflow, (_IO_underflow_t) _IO_wdefault_uflow), - JUMP_INIT(pbackfail, (_IO_pbackfail_t) _IO_wstr_pbackfail), - JUMP_INIT(xsputn, _IO_wdefault_xsputn), - JUMP_INIT(xsgetn, _IO_wdefault_xsgetn), - JUMP_INIT(seekoff, _IO_wstr_seekoff), - JUMP_INIT(seekpos, _IO_default_seekpos), - JUMP_INIT(setbuf, _IO_default_setbuf), - JUMP_INIT(sync, _IO_default_sync), - JUMP_INIT(doallocate, _IO_wdefault_doallocate), - JUMP_INIT(read, _IO_default_read), - JUMP_INIT(write, _IO_default_write), - JUMP_INIT(seek, _IO_default_seek), - JUMP_INIT(close, _IO_default_close), - JUMP_INIT(stat, _IO_default_stat), - JUMP_INIT(showmanyc, _IO_default_showmanyc), - JUMP_INIT(imbue, _IO_default_imbue) -}; diff --git a/stdio-common/printf_buffer_as_file.c b/stdio-common/printf_buffer_as_file.c index 12b0e13..fe23797 100644 --- a/stdio-common/printf_buffer_as_file.c +++ b/stdio-common/printf_buffer_as_file.c @@ -48,7 +48,7 @@ __printf_buffer_as_file_switch_to_buffer (struct __printf_buffer_as_file *file) /* Only a small subset of the vtable functions is implemented here, following _IO_obstack_jumps. */ -static int +int __printf_buffer_as_file_overflow (FILE *fp, int ch) { struct __printf_buffer_as_file *file = (struct __printf_buffer_as_file *) fp; @@ -72,7 +72,7 @@ __printf_buffer_as_file_overflow (FILE *fp, int ch) return EOF; } -static size_t +size_t __printf_buffer_as_file_xsputn (FILE *fp, const void *buf, size_t len) { struct __printf_buffer_as_file *file = (struct __printf_buffer_as_file *) fp; @@ -93,30 +93,6 @@ __printf_buffer_as_file_xsputn (FILE *fp, const void *buf, size_t len) return 0; } -static const struct _IO_jump_t _IO_printf_buffer_as_file_jumps libio_vtable = -{ - JUMP_INIT_DUMMY, - JUMP_INIT(finish, NULL), - JUMP_INIT(overflow, __printf_buffer_as_file_overflow), - JUMP_INIT(underflow, NULL), - JUMP_INIT(uflow, NULL), - JUMP_INIT(pbackfail, NULL), - JUMP_INIT(xsputn, __printf_buffer_as_file_xsputn), - JUMP_INIT(xsgetn, NULL), - JUMP_INIT(seekoff, NULL), - JUMP_INIT(seekpos, NULL), - JUMP_INIT(setbuf, NULL), - JUMP_INIT(sync, NULL), - JUMP_INIT(doallocate, NULL), - JUMP_INIT(read, NULL), - JUMP_INIT(write, NULL), - JUMP_INIT(seek, NULL), - JUMP_INIT(close, NULL), - JUMP_INIT(stat, NULL), - JUMP_INIT(showmanyc, NULL), - JUMP_INIT(imbue, NULL) -}; - void __printf_buffer_as_file_init (struct __printf_buffer_as_file *file, struct __printf_buffer *next) diff --git a/stdio-common/wprintf_buffer_as_file.c b/stdio-common/wprintf_buffer_as_file.c index b2e5b5a..dbdb8cc 100644 --- a/stdio-common/wprintf_buffer_as_file.c +++ b/stdio-common/wprintf_buffer_as_file.c @@ -48,7 +48,7 @@ __wprintf_buffer_as_file_switch_to_buffer (struct __wprintf_buffer_as_file *file /* Only a small subset of the vtable functions is implemented here, following _IO_obstack_jumps. */ -static wint_t +wint_t __wprintf_buffer_as_file_overflow (FILE *fp, int ch) { struct __wprintf_buffer_as_file *file @@ -75,7 +75,7 @@ __wprintf_buffer_as_file_overflow (FILE *fp, int ch) return WEOF; } -static size_t +size_t __wprintf_buffer_as_file_xsputn (FILE *fp, const void *buf, size_t len) { struct __wprintf_buffer_as_file *file @@ -97,30 +97,6 @@ __wprintf_buffer_as_file_xsputn (FILE *fp, const void *buf, size_t len) return 0; } -static const struct _IO_jump_t _IO_wprintf_buffer_as_file_jumps libio_vtable = -{ - JUMP_INIT_DUMMY, - JUMP_INIT(finish, NULL), - JUMP_INIT(overflow, (_IO_overflow_t) __wprintf_buffer_as_file_overflow), - JUMP_INIT(underflow, NULL), - JUMP_INIT(uflow, NULL), - JUMP_INIT(pbackfail, NULL), - JUMP_INIT(xsputn, __wprintf_buffer_as_file_xsputn), - JUMP_INIT(xsgetn, NULL), - JUMP_INIT(seekoff, NULL), - JUMP_INIT(seekpos, NULL), - JUMP_INIT(setbuf, NULL), - JUMP_INIT(sync, NULL), - JUMP_INIT(doallocate, NULL), - JUMP_INIT(read, NULL), - JUMP_INIT(write, NULL), - JUMP_INIT(seek, NULL), - JUMP_INIT(close, NULL), - JUMP_INIT(stat, NULL), - JUMP_INIT(showmanyc, NULL), - JUMP_INIT(imbue, NULL) -}; - void __wprintf_buffer_as_file_init (struct __wprintf_buffer_as_file *file, struct __wprintf_buffer *next) |