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18c0e02e2b
patches by Alex Caudill (npx). the dynamic-linked version is almost identical to the final submitted patch; I just added a couple missing lines for saving the phdr address when the dynamic linker is invoked directly to run a program, and removed a couple to avoid introducing another unnecessary type. the static-linked version is based on npx's draft. it could use some improvements which are contingent on the startup code saving some additional information for later use.
28 lines
539 B
C
28 lines
539 B
C
#ifndef _LINK_H
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#define _LINK_H
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#include <elf.h>
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#define __NEED_size_t
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#include <bits/alltypes.h>
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#if UINTPTR_MAX > 0xffffffff
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#define ElfW(type) Elf64_ ## type
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#else
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#define ElfW(type) Elf32_ ## type
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#endif
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struct dl_phdr_info {
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ElfW(Addr) dlpi_addr;
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const char *dlpi_name;
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const ElfW(Phdr) *dlpi_phdr;
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ElfW(Half) dlpi_phnum;
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unsigned long long int dlpi_adds;
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unsigned long long int dlpi_subs;
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size_t dlpi_tls_modid;
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void *dlpi_tls_data;
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};
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int dl_iterate_phdr(int (*)(struct dl_phdr_info *, size_t, void *), void *);
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#endif
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