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oot/tools/reloc_prereq.c

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New relocation-generating program (#1016) * Update makefiles * git subrepo clone git@github.com:EllipticEllipsis/fado.git tools/fado subrepo: subdir: "tools/fado" merged: "46c4d751a" upstream: origin: "git@github.com:EllipticEllipsis/fado.git" branch: "master" commit: "46c4d751a" git-subrepo: version: "0.4.3" origin: "https://github.com/ingydotnet/git-subrepo.git" commit: "2f68596" * git subrepo pull tools/fado subrepo: subdir: "tools/fado" merged: "88114ebce" upstream: origin: "git@github.com:EllipticEllipsis/fado.git" branch: "master" commit: "88114ebce" git-subrepo: version: "0.4.3" origin: "https://github.com/ingydotnet/git-subrepo.git" commit: "2f68596" * A few ideas for computing dependencies * Remove reserved identifiers from spec.h and util.h and add required headers * Fix a couple more headers * Program for reloc prerequisites * git subrepo pull tools/fado subrepo: subdir: "tools/fado" merged: "36a905f72" upstream: origin: "git@github.com:EllipticEllipsis/fado.git" branch: "master" commit: "36a905f72" git-subrepo: version: "0.4.3" origin: "https://github.com/ingydotnet/git-subrepo.git" commit: "2f68596" * Update makefile to make dependency files and use overlay's name * git subrepo pull tools/fado subrepo: subdir: "tools/fado" merged: "43c339a59" upstream: origin: "git@github.com:EllipticEllipsis/fado.git" branch: "master" commit: "43c339a59" git-subrepo: version: "0.4.3" origin: "https://github.com/ingydotnet/git-subrepo.git" commit: "2f68596" * Change awk to grep, delete ZAPD files, gitignore elf * Delete all the cfg files * Fix memory leaks * Rename and add coloured errors * Makefile tweaks - preprocess spec before grep - split order prerequisites via phony target to reduce dependency edges - remove `resources` target - remove separate overlays targets - use `$(SPEC)` throughout - change to using filenames of relocs for overlay names via `$*` - Rearrange targets to better reflect their categories * Update gitignore * Review * Add a check for the reloc file name * get_segment_by_name * get_stmt_id_by_stmt_name * Cleaning up * algorithm change * function rename * Fix typos Co-authored-by: angie <angheloalf95@gmail.com>
2022-02-06 19:40:26 +00:00
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "spec.h"
#include "util.h"
void print_usage(char* prog_name) {
printf("USAGE: %s SPEC OVERLAY_SEGMENT_NAME\n"
"Search the preprocessed SPEC for an overlay segment name, \n"
"e.g. \"ovl_En_Firefly\", and return a space-separated list of the files it\n"
"includes. The relocation file must be the last include in the segment\n"
"OVERLAY_SEGMENT_NAME, and have the filename \"OVERLAY_SEGMENT_NAME_reloc.o\",\n"
"but can be in a different directory from the other files.\n",
prog_name);
}
int main(int argc, char** argv) {
char* spec_path;
char* overlay_name;
char* spec;
size_t size;
Segment segment;
int exit_status = 0;
bool segmentFound = false;
if (argc != 3) {
print_usage(argv[0]);
return 1;
}
spec_path = argv[1];
overlay_name = argv[2];
// printf("spec path: %s\n", spec_path);
// printf("overlay name: %s\n", overlay_name);
spec = util_read_whole_file(spec_path, &size);
segmentFound = get_single_segment_by_name(&segment, spec, overlay_name);
if (!segmentFound) {
fprintf(stderr, ERRMSG_START "no segment \"%s\" found\n" ERRMSG_END, overlay_name);
goto error_out;
}
{
size_t overlay_name_length;
const char* reloc_suffix = "_reloc.o";
char* expected_filename;
/* Relocation file must be the last `include` (so .ovl section is linked last) */
if (strstr(segment.includes[segment.includesCount - 1].fpath, reloc_suffix) == NULL) {
fprintf(stderr, ERRMSG_START "last include in overlay segment \"%s\" is not a `%s` file\n" ERRMSG_END,
overlay_name, reloc_suffix);
goto error_out;
}
overlay_name_length = strlen(overlay_name);
expected_filename = malloc(overlay_name_length + strlen(reloc_suffix) + 1);
strcpy(expected_filename, overlay_name);
strcat(expected_filename, reloc_suffix);
if (strstr(segment.includes[segment.includesCount - 1].fpath, expected_filename) == NULL) {
fprintf(stderr, ERRMSG_START "Relocation file \"%s\" should have filename \"%s\"\n" ERRMSG_END,
segment.includes[segment.includesCount - 1].fpath, expected_filename);
goto error_out;
}
free(expected_filename);
}
{
int i;
/* Skip `_reloc.o` include */
for (i = 0; i < segment.includesCount - 1; i++) {
printf("%s ", segment.includes[i].fpath);
}
putchar('\n');
}
if (0) {
error_out:
exit_status = 1;
}
free_single_segment_elements(&segment);
free(spec);
return exit_status;
}