diff options
Diffstat (limited to 'src/unexelf.c')
| -rw-r--r-- | src/unexelf.c | 51 |
1 files changed, 6 insertions, 45 deletions
diff --git a/src/unexelf.c b/src/unexelf.c index a15c7702d69..0732e202710 100644 --- a/src/unexelf.c +++ b/src/unexelf.c @@ -33,34 +33,13 @@ what you give them. Help stamp out software-hoarding! */ * Modified heavily since then. * * Synopsis: - * unexec (new_name, old_name, data_start, bss_start, entry_address) - * char *new_name, *old_name; - * unsigned data_start, bss_start, entry_address; + * unexec (const char *new_name, const char *old_name); * * Takes a snapshot of the program and makes an a.out format file in the * file named by the string argument new_name. * If old_name is non-NULL, the symbol table will be taken from the given file. * On some machines, an existing old_name file is required. * - * The boundaries within the a.out file may be adjusted with the data_start - * and bss_start arguments. Either or both may be given as 0 for defaults. - * - * Data_start gives the boundary between the text segment and the data - * segment of the program. The text segment can contain shared, read-only - * program code and literal data, while the data segment is always unshared - * and unprotected. Data_start gives the lowest unprotected address. - * The value you specify may be rounded down to a suitable boundary - * as required by the machine you are using. - * - * Bss_start indicates how much of the data segment is to be saved in the - * a.out file and restored when the program is executed. It gives the lowest - * unsaved address, and is rounded up to a page boundary. The default when 0 - * is given assumes that the entire data segment is to be stored, including - * the previous data and bss as well as any additional storage allocated with - * break (2). - * - * The new file is set up to start at entry_address. - * */ /* Even more heavily modified by james@bigtex.cactus.org of Dell Computer Co. @@ -407,13 +386,8 @@ temacs: /* We do not use mmap because that fails with NFS. Instead we read the whole file, modify it, and write it out. */ -#ifndef emacs -#define fatal(a, b, c) fprintf (stderr, a, b, c), exit (1) -#include <string.h> -#else #include <config.h> extern void fatal (const char *msgid, ...); -#endif #include <sys/types.h> #include <stdio.h> @@ -424,7 +398,7 @@ extern void fatal (const char *msgid, ...); #include <fcntl.h> #if !defined (__NetBSD__) && !defined (__OpenBSD__) #include <elf.h> -#endif +#endif /* not __NetBSD__ and not __OpenBSD__ */ #include <sys/mman.h> #if defined (_SYSTYPE_SYSV) #include <sys/elf_mips.h> @@ -594,8 +568,7 @@ typedef unsigned char byte; /* Round X up to a multiple of Y. */ static ElfW(Addr) -round_up (x, y) - ElfW(Addr) x, y; +round_up (ElfW(Addr) x, ElfW(Addr) y) { int rem = x % y; if (rem == 0) @@ -611,13 +584,8 @@ round_up (x, y) if NOERROR is 0; we return -1 if NOERROR is nonzero. */ static int -find_section (name, section_names, file_name, old_file_h, old_section_h, noerror) - char *name; - char *section_names; - char *file_name; - ElfW(Ehdr) *old_file_h; - ElfW(Shdr) *old_section_h; - int noerror; +find_section (const char *name, const char *section_names, const char *file_name, + ElfW(Ehdr) *old_file_h, ElfW(Shdr) *old_section_h, int noerror) { int idx; @@ -652,9 +620,7 @@ find_section (name, section_names, file_name, old_file_h, old_section_h, noerror * */ void -unexec (new_name, old_name, data_start, bss_start, entry_address) - char *new_name, *old_name; - unsigned data_start, bss_start, entry_address; +unexec (const char *new_name, const char *old_name) { int new_file, old_file, new_file_size; @@ -1316,13 +1282,8 @@ temacs: /* Write out new_file, and free the buffers. */ if (write (new_file, new_base, new_file_size) != new_file_size) -#ifndef emacs - fatal ("Didn't write %d bytes: errno %d\n", - new_file_size, errno); -#else fatal ("Didn't write %d bytes to %s: errno %d\n", new_file_size, new_name, errno); -#endif munmap (old_base, old_file_size); munmap (new_base, new_file_size); |