71 lines
2.0 KiB
C
71 lines
2.0 KiB
C
/* $NetBSD: link_elf.h,v 1.13 2020/09/22 01:52:16 kamil Exp $ */
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#ifndef _LINK_ELF_H_
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#define _LINK_ELF_H_
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#include <sys/types.h>
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#include <sys/exec_elf.h>
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#define R_DEBUG_VERSION 1 /* SVR4 Protocol version */
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typedef struct link_map {
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caddr_t l_addr; /* Base Address of library */
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#ifdef __mips__
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caddr_t l_offs; /* Load Offset of library */
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#endif
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const char *l_name; /* Absolute Path to Library */
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void *l_ld; /* Pointer to .dynamic in memory */
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struct link_map *l_next; /* linked list of mapped libs */
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struct link_map *l_prev;
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} Link_map;
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/*
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* Debug rendezvous struct. Pointer to this is set up in the
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* target code pointed by the DT_DEBUG tag. If it is
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* defined.
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*/
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struct r_debug {
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int r_version; /* protocol version */
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struct link_map *r_map; /* list of loaded images */
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/*
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* This is the address of a function internal to the run-time linker,
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* that will always be called when the linker begins to map in a
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* library or unmap it, and again when the mapping change is complete.
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* The debugger can set a breakpoint at this address if it wants to
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* notice shared object mapping changes.
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*/
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void (*r_brk)(void); /* pointer to break point */
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enum {
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/*
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* This state value describes the mapping change taking place
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* when the `r_brk' address is called.
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*/
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RT_CONSISTENT, /* things are stable */
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RT_ADD, /* adding a shared library */
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RT_DELETE /* removing a shared library */
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} r_state;
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void *r_ldbase; /* base address of RTLD */
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};
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struct dl_phdr_info
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{
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Elf_Addr dlpi_addr; /* module relocation base */
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const char *dlpi_name; /* module name */
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const Elf_Phdr *dlpi_phdr; /* pointer to module's phdr */
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Elf_Half dlpi_phnum; /* number of entries in phdr */
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unsigned long long int dlpi_adds; /* total # of loads */
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unsigned long long int dlpi_subs; /* total # of unloads */
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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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__BEGIN_DECLS
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int dl_iterate_phdr(int (*)(struct dl_phdr_info *, size_t, void *),
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void *);
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__END_DECLS
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#endif /* _LINK_ELF_H_ */
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