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ld: implement support for exposing ld functions to loaded executables

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This commit is contained in:
max 🍓
2026-05-30 10:17:43 +01:00
parent ce52afe5b4
commit 08abe467ea
12 changed files with 425 additions and 59 deletions
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sys/ld/main.c
+20 -13
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@@ -2,15 +2,16 @@
#define MSG_NO_MALLOC
#include "elf.h"
#include "self.h"
#include <errno.h>
#include <fcntl.h>
#include <heap/heap.h>
#include <mango/log.h>
#include <mango/msg.h>
#include <mango/task.h>
#include <mango/types.h>
#include <mango/vm.h>
#include <magenta/log.h>
#include <magenta/msg.h>
#include <magenta/task.h>
#include <magenta/types.h>
#include <magenta/vm.h>
#include <rosetta/bootstrap.h>
#include <rosetta/fs.h>
#include <stdarg.h>
@@ -101,7 +102,7 @@ static int load_images(const char *task_name, struct image_list *list)
report_error(
task_name,
status,
"error while loading %s",
"C error while loading %s",
image->e_leaf.l_name);
return status;
}
@@ -112,7 +113,7 @@ static int load_images(const char *task_name, struct image_list *list)
report_error(
task_name,
status,
"error while loading %s",
"B error while loading %s",
image->e_leaf.l_name);
return status;
}
@@ -123,8 +124,8 @@ static int load_images(const char *task_name, struct image_list *list)
report_error(
task_name,
status,
"error while loading %s",
image->e_leaf.l_name);
"A error while loading %s",
image);
return status;
}
case ELF_IMAGE_LOADED:
@@ -139,7 +140,7 @@ static int load_images(const char *task_name, struct image_list *list)
report_error(
task_name,
-new_dependencies,
"error while loading %s",
"F error while loading %s",
image->e_leaf.l_name);
return -new_dependencies;
}
@@ -174,7 +175,7 @@ static int link_images(const char *task_name, struct image_list *list)
report_error(
task_name,
status,
"error while loading %s",
"E error while loading %s",
image->e_leaf.l_name);
return status;
}
@@ -221,6 +222,9 @@ int main(const struct rosetta_bootstrap *bs)
const char *task_name = bs->bs_argv[2];
const char *image_name = get_image_name(exec_path);
kern_tracef("ld: exec_path=%s", exec_path);
kern_tracef("ld: task_name=%s", task_name);
image_list_init(&images);
struct elf_image *exec = NULL;
@@ -229,7 +233,7 @@ int main(const struct rosetta_bootstrap *bs)
report_error(
task_name,
err,
"error while loading %s",
"D error while loading %s",
exec_path);
return -1;
}
@@ -251,6 +255,9 @@ int main(const struct rosetta_bootstrap *bs)
return -1;
}
struct elf_image *self = get_self();
image_list_put(&images, &self->e_leaf);
struct image_list_iterator it;
image_list_iterator_begin(&it, &images);
@@ -265,7 +272,7 @@ int main(const struct rosetta_bootstrap *bs)
image_list_iterator_move_next(&it);
}
dump_loaded_images(&images);
// dump_loaded_images(&images);
kern_tracef("ld finished");
struct rosetta_bootstrap exec_bsinfo;
memcpy(&exec_bsinfo, bs, sizeof exec_bsinfo);