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libbacktrace: support FDPIC (1dd5c40)

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This commit is contained in:
Bartosz Taudul
2024-08-24 18:15:52 +02:00
parent 0d0e56dca3
commit e26c34346b
4 changed files with 108 additions and 48 deletions
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public/libbacktrace/internal.hpp
+35 -1
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@@ -333,10 +333,44 @@ struct dwarf_sections
struct dwarf_data;
/* The load address mapping. */
#if defined(__FDPIC__) && defined(HAVE_DL_ITERATE_PHDR) && (defined(HAVE_LINK_H) || defined(HAVE_SYS_LINK_H))
#ifdef HAVE_LINK_H
#include <link.h>
#endif
#ifdef HAVE_SYS_LINK_H
#include <sys/link.h>
#endif
#define libbacktrace_using_fdpic() (1)
struct libbacktrace_base_address
{
struct elf32_fdpic_loadaddr m;
};
#define libbacktrace_add_base(pc, base) \
((uintptr_t) (__RELOC_POINTER ((pc), (base).m)))
#else /* not _FDPIC__ */
#define libbacktrace_using_fdpic() (0)
struct libbacktrace_base_address
{
uintptr_t m;
};
#define libbacktrace_add_base(pc, base) ((pc) + (base).m)
#endif /* not _FDPIC__ */
/* Add file/line information for a DWARF module. */
extern int backtrace_dwarf_add (struct backtrace_state *state,
uintptr_t base_address,
struct libbacktrace_base_address base_address,
const struct dwarf_sections *dwarf_sections,
int is_bigendian,
struct dwarf_data *fileline_altlink,