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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:06:00 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:06:00 +0000 |
commit | b15a952c52a6825376d3e7f6c1bf5c886c6d8b74 (patch) | |
tree | 1500f2f8f276908a36d8126cb632c0d6b1276764 /debian/rules.d/scripts/mod/modpost.c | |
parent | Adding upstream version 5.10.209. (diff) | |
download | linux-debian.tar.xz linux-debian.zip |
Adding debian version 5.10.209-2.debian/5.10.209-2debian
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | debian/rules.d/scripts/mod/modpost.c | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/debian/rules.d/scripts/mod/modpost.c b/debian/rules.d/scripts/mod/modpost.c new file mode 100644 index 000000000..d574957ae --- /dev/null +++ b/debian/rules.d/scripts/mod/modpost.c @@ -0,0 +1,136 @@ +#include <elf.h> +#include <errno.h> +#include <getopt.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#include "modpost-opts.h" + +int main (int argc, char *argv[]) +{ + char const *data, *class; + char *list_name = NULL; + char *name = NULL; + char prog[1024]; + unsigned char ei[EI_NIDENT]; + int opt; + FILE *file; + + while ((opt = getopt (argc, argv, GETOPT_OPTIONS)) != -1) + { + switch(opt) + { + GETOPT_CASE + break; + case 'T': + list_name = optarg; + break; + default: + return EXIT_FAILURE; + } + } + + if (optind != argc) + { + name = argv[optind]; + } + else if (list_name) + { + size_t name_len; + int is_stdin = strcmp (list_name, "-") == 0; + + /* Read first line of list file */ + if (is_stdin) + { + file = stdin; + setvbuf(stdin, NULL, _IONBF, 0); /* don't over-read */ + } + else + { + file = fopen (list_name, "r"); + if (!file) + { + fprintf (stderr, "Can't open \"%s\"\n", list_name); + return EXIT_FAILURE; + } + } + if (getline (&name, &name_len, file) < 0) + { + if (errno) + { + fprintf (stderr, "Can't read \"%s\"\n", list_name); + return EXIT_FAILURE; + } + else + { + /* Empty list */ + return EXIT_SUCCESS; + } + } + if (!is_stdin) + fclose(file); + + /* Remove new-line */ + name [strcspn (name, "\n")] = 0; + + /* If this came from stdin, we need to add the first name to the + * arguments, because the upstream modpost can't read it again. + */ + if (is_stdin) + { + char **new_argv = malloc (sizeof(*argv) * (argc + 2)); + memcpy(new_argv, argv, sizeof(*argv) * argc); + new_argv [argc] = name; + new_argv [argc + 1] = NULL; + argv = new_argv; + } + } + else + { + /* Empty list */ + return EXIT_SUCCESS; + } + + if (!(file = fopen (name, "r"))) + { + fprintf (stderr, "Can't open \"%s\"\n", name); + return EXIT_FAILURE; + } + + if (fread (ei, 1, EI_NIDENT, file) != EI_NIDENT) + { + fprintf (stderr, "Error: input truncated\n"); + return EXIT_FAILURE; + } + + if (memcmp (ei, ELFMAG, SELFMAG) != 0) + { + fprintf (stderr, "Error: not ELF\n"); + return EXIT_FAILURE; + } + switch (ei[EI_DATA]) { + case ELFDATA2LSB: + data = "lsb"; + break; + case ELFDATA2MSB: + data = "msb"; + break; + default: + return EXIT_FAILURE; + } + switch (ei[EI_CLASS]) { + case ELFCLASS32: + class = "32"; + break; + case ELFCLASS64: + class = "64"; + break; + default: + return EXIT_FAILURE; + } + snprintf (prog, sizeof prog, "%s.real-%s-%s", argv[0], data, class); + + return execv (prog, argv); +} |