3498280968
shared object to find out the GCC version it has been compiled with. This is not an exact science, since we've got the version string for every single object file that has been linked in, but my heuristic seems to be good enough. Having the gcc version at hand will allow for two features: Enabling work-arounds for old executables (like the type info problem in BeOS apps), and automatically selecting the right set of libraries in a mixed gcc 2/gcc 4 environment. git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24534 a95241bf-73f2-0310-859d-f6bbb57e9c96
94 lines
2.2 KiB
C
94 lines
2.2 KiB
C
/*
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* Copyright 2003-2006, Axel Dörfler, axeld@pinc-software.de.
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* Distributed under the terms of the MIT License.
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*
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* Copyright 2002, Manuel J. Petit. All rights reserved.
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* Copyright 2001, Travis Geiselbrecht. All rights reserved.
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* Distributed under the terms of the NewOS License.
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*/
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#ifndef _RUNTIME_LOADER_H
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#define _RUNTIME_LOADER_H
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#include <image.h>
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#include <OS.h>
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#include <elf32.h>
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typedef struct elf_region_t {
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area_id id;
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addr_t start;
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addr_t size;
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addr_t vmstart;
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addr_t vmsize;
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addr_t fdstart;
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addr_t fdsize;
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long delta;
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uint32 flags;
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} elf_region_t;
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typedef struct image_t {
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// image identification
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char path[B_PATH_NAME_LENGTH];
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char name[B_OS_NAME_LENGTH];
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image_id id;
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image_type type;
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struct image_t *next;
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struct image_t *prev;
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int32 ref_count;
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uint32 flags;
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struct {
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int major;
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int middle;
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int minor;
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} gcc_version;
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addr_t entry_point;
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addr_t init_routine;
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addr_t term_routine;
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addr_t dynamic_ptr; // pointer to the dynamic section
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// pointer to symbol participation data structures
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uint32 *symhash;
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struct Elf32_Sym *syms;
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char *strtab;
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struct Elf32_Rel *rel;
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int rel_len;
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struct Elf32_Rela *rela;
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int rela_len;
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struct Elf32_Rel *pltrel;
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int pltrel_len;
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uint32 num_needed;
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struct image_t **needed;
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// describes the text and data regions
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uint32 num_regions;
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elf_region_t regions[1];
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} image_t;
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typedef struct image_queue_t {
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image_t *head;
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image_t *tail;
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} image_queue_t;
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#define STRING(image, offset) ((char *)(&(image)->strtab[(offset)]))
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#define SYMNAME(image, sym) STRING(image, (sym)->st_name)
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#define SYMBOL(image, num) ((struct Elf32_Sym *)&(image)->syms[num])
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#define HASHTABSIZE(image) ((image)->symhash[0])
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#define HASHBUCKETS(image) ((unsigned int *)&(image)->symhash[2])
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#define HASHCHAINS(image) ((unsigned int *)&(image)->symhash[2+HASHTABSIZE(image)])
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// The name of the area the runtime loader creates for debugging purposes.
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#define RUNTIME_LOADER_DEBUG_AREA_NAME "_rld_debug_"
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// The contents of the runtime loader debug area.
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typedef struct runtime_loader_debug_area {
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image_queue_t *loaded_images;
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} runtime_loader_debug_area;
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#endif // _RUNTIME_LOADER_H
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