92 lines
2.1 KiB
C
92 lines
2.1 KiB
C
#define _SYSTEM 1
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#include <minix/type.h>
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#include <minix/const.h>
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#include <sys/param.h>
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#include <assert.h>
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#include <unistd.h>
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#include <errno.h>
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#include <libexec.h>
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#include <string.h>
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#include <assert.h>
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#include <minix/ipc.h>
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#include <minix/com.h>
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#include <minix/callnr.h>
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#include <minix/vm.h>
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#include <minix/ipc.h>
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#include <minix/syslib.h>
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#include <sys/mman.h>
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#include <machine/elf.h>
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int libexec_alloc_mmap_prealloc_junk(struct exec_info *execi, vir_bytes vaddr, size_t len)
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{
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if(minix_mmap_for(execi->proc_e, (void *) vaddr, len,
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PROT_READ|PROT_WRITE|PROT_EXEC,
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MAP_ANON|MAP_PREALLOC|MAP_UNINITIALIZED|MAP_FIXED, -1, 0) == MAP_FAILED) {
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return ENOMEM;
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}
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return OK;
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}
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int libexec_alloc_mmap_prealloc_cleared(struct exec_info *execi, vir_bytes vaddr, size_t len)
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{
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if(minix_mmap_for(execi->proc_e, (void *) vaddr, len,
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PROT_READ|PROT_WRITE|PROT_EXEC,
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MAP_ANON|MAP_PREALLOC|MAP_FIXED, -1, 0) == MAP_FAILED) {
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return ENOMEM;
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}
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return OK;
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}
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int libexec_alloc_mmap_ondemand(struct exec_info *execi, vir_bytes vaddr, size_t len)
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{
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if(minix_mmap_for(execi->proc_e, (void *) vaddr, len,
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PROT_READ|PROT_WRITE|PROT_EXEC,
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MAP_ANON|MAP_FIXED, -1, 0) == MAP_FAILED) {
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return ENOMEM;
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}
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return OK;
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}
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int libexec_clearproc_vm_procctl(struct exec_info *execi)
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{
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return vm_procctl_clear(execi->proc_e);
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}
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int libexec_clear_sys_memset(struct exec_info *execi, vir_bytes vaddr, size_t len)
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{
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return sys_memset(execi->proc_e, 0, vaddr, len);
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}
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int libexec_copy_memcpy(struct exec_info *execi,
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off_t off, vir_bytes vaddr, size_t len)
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{
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assert(off + len <= execi->hdr_len);
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memcpy((char *) vaddr, (char *) execi->hdr + off, len);
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return OK;
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}
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int libexec_clear_memset(struct exec_info *execi, vir_bytes vaddr, size_t len)
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{
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memset((char *) vaddr, 0, len);
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return OK;
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}
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int libexec_pm_newexec(endpoint_t proc_e, struct exec_info *e)
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{
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int r;
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message m;
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memset(&m, 0, sizeof(m));
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m.m_type = PM_EXEC_NEW;
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m.m_lexec_pm_exec_new.endpt = proc_e;
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m.m_lexec_pm_exec_new.ptr = (vir_bytes)e;
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if ((r = ipc_sendrec(PM_PROC_NR, &m)) != OK) return(r);
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e->allow_setuid = !!m.m_pm_lexec_exec_new.suid;
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return(m.m_type);
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}
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