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Rev 3597 Rev 3684
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#include <as.h>
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#include <as.h>
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#include <elf.h>
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#include <elf.h>
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#include <elf_load.h>
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#include <elf_load.h>
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/**
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 * Bias used for loading the dynamic linker. This will be soon replaced
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 * by automatic placement.
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 */
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#define RTLD_BIAS 0x80000
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/** Pathname of the file that will be loaded */
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/** Pathname of the file that will be loaded */
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static char *pathname = NULL;
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static char *pathname = NULL;
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/** The Program control block */
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/** The Program control block */
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static pcb_t pcb;
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static pcb_t pcb;
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 */
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 */
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static int loader_load(ipc_callid_t rid, ipc_call_t *request)
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static int loader_load(ipc_callid_t rid, ipc_call_t *request)
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{
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{
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    int rc;
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    int rc;
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//  printf("Load program '%s'\n", pathname);
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    rc = elf_load_file(pathname, 0, &prog_info);
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    rc = elf_load_file(pathname, 0, &prog_info);
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    if (rc < 0) {
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    if (rc < 0) {
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        printf("failed to load program\n");
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        printf("Failed to load executable '%s'.\n", pathname);
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        ipc_answer_0(rid, EINVAL);
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        ipc_answer_0(rid, EINVAL);
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        return 1;
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        return 1;
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    }
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    }
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//  printf("Create PCB\n");
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    elf_create_pcb(&prog_info, &pcb);
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    elf_create_pcb(&prog_info, &pcb);
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    pcb.argc = argc;
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    pcb.argc = argc;
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    pcb.argv = argv;
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    pcb.argv = argv;
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    if (prog_info.interp == NULL) {
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    if (prog_info.interp == NULL) {
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        /* Statically linked program */
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        /* Statically linked program */
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//      printf("Run statically linked program\n");
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//      printf("entry point: 0x%lx\n", prog_info.entry);
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        is_dyn_linked = false;
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        is_dyn_linked = false;
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        ipc_answer_0(rid, EOK);
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        ipc_answer_0(rid, EOK);
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        return 0;
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        return 0;
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    }
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    }
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    printf("Load dynamic linker '%s'\n", prog_info.interp);
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    rc = elf_load_file("/rtld.so", RTLD_BIAS, &interp_info);
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    rc = elf_load_file(prog_info.interp, 0, &interp_info);
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    if (rc < 0) {
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    if (rc < 0) {
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        printf("failed to load dynamic linker\n");
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        printf("Failed to load interpreter '%s.'\n", prog_info.interp);
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        ipc_answer_0(rid, EINVAL);
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        ipc_answer_0(rid, EINVAL);
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        return 1;
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        return 1;
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    }
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    }
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    /*
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     * Provide dynamic linker with some useful data
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     */
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    pcb.rtld_dynamic = interp_info.dynamic;
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    pcb.rtld_bias = RTLD_BIAS;
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    is_dyn_linked = true;
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    is_dyn_linked = true;
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    ipc_answer_0(rid, EOK);
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    ipc_answer_0(rid, EOK);
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    return 0;
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    return 0;
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}
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}