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Support 40 cosmo_dlopen() function parameters

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Our dynamic linking implementation is now able to support functions with
dozens of parameters. In addition to having extra integral arguments you
can now pass vector registers using intrinsic types. Lastly, you can now
return multiple values, which is useful for functions returning structs.
This commit is contained in:
Justine Tunney 2024-01-04 13:41:26 -08:00
parent a3deef70c2
commit 0e49bed660
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GPG key ID: BE714B4575D6E328
6 changed files with 550 additions and 135 deletions
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126
tool/build/dlopen_test.c Normal file
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/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2024 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/calls.h"
#include "libc/dlopen/dlfcn.h"
#include "libc/limits.h"
#include "libc/runtime/runtime.h"
#include "libc/stdio/stdio.h"
#include "libc/str/str.h"
struct big {
long x1;
long x2;
long x3;
long x4;
long x5;
long x6;
long x7;
long x8;
long x9;
double f0;
double f1;
};
int main(int argc, char *argv[]) {
void *lib = cosmo_dlopen(argv[1], RTLD_LAZY);
if (!lib) {
tinyprint(2, "cosmo_dlopen() failed: ", cosmo_dlerror(), "\n", NULL);
exit(1);
}
fprintf(stderr, "opened library!\n");
long (*big)(struct big *, long, long, long, long, long, long, long, long,
long, double, double) = cosmo_dlsym(lib, "big");
if (!big) {
tinyprint(2, "cosmo_dlsym() failed: ", cosmo_dlerror(), "\n", NULL);
exit(1);
}
fprintf(stderr, "imported symbol!\n");
struct big args = {0};
long res = big(&args, 1, 2, 3, 4, 5, 6, 7, 8, 9, 3.14, 2.3);
int fails = 0;
if (res != 31337) {
fprintf(stderr, "error: bad result: %016lx\n", res);
++fails;
}
if (args.x1 != 1) {
fprintf(stderr, "error: bad x1: %016lx\n", args.x1);
++fails;
}
if (args.x2 != 2) {
fprintf(stderr, "error: bad x2: %016lx\n", args.x2);
++fails;
}
if (args.x3 != 3) {
fprintf(stderr, "error: bad x3: %016lx\n", args.x3);
++fails;
}
if (args.x4 != 4) {
fprintf(stderr, "error: bad x4: %016lx\n", args.x4);
++fails;
}
if (args.x5 != 5) {
fprintf(stderr, "error: bad x5: %016lx\n", args.x5);
++fails;
}
if (args.x6 != 6) {
fprintf(stderr, "error: bad x6: %016lx\n", args.x6);
++fails;
}
if (args.x7 != 7) {
fprintf(stderr, "error: bad x7: %016lx\n", args.x7);
++fails;
}
if (args.x8 != 8) {
fprintf(stderr, "error: bad x8: %016lx\n", args.x8);
++fails;
}
if (args.x9 != 9) {
fprintf(stderr, "error: bad x9: %016lx\n", args.x9);
++fails;
}
if (args.f0 != 3.14) {
fprintf(stderr, "error: bad f0: %g\n", args.f0);
++fails;
}
if (args.f1 != 2.3) {
fprintf(stderr, "error: bad f1: %g\n", args.f1);
++fails;
}
cosmo_dlclose(lib);
return fails;
}