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| author | Pedro Alves <palves@redhat.com> | 2014-10-10 15:57:13 +0100 |
|---|---|---|
| committer | Pedro Alves <palves@redhat.com> | 2014-10-10 15:57:13 +0100 |
| commit | 3437254d7b5bc57d3a298df8640ae2f55bdbff2a (patch) | |
| tree | a4514be4368be36b4aa93ee54a9833c2361fe8fe /gdb/gdbarch.h | |
| parent | 31cc0b807b2fde7d0110175418a6eea01a982489 (diff) | |
| download | gdb-3437254d7b5bc57d3a298df8640ae2f55bdbff2a.zip gdb-3437254d7b5bc57d3a298df8640ae2f55bdbff2a.tar.gz gdb-3437254d7b5bc57d3a298df8640ae2f55bdbff2a.tar.bz2 | |
Split vDSO range lookup to a gdbarch hook
We have a case in solib-svr4.c where we could reuse symfile-mem.c's
vDSO range lookup. Since symfile-mem.c is not present in all
configurations solib-svr4.c is, move that lookup to a gdbarch hook.
This has the minor (good) side effect that we stop even trying the
target_auxv_search lookup against targets that don't have a concept of
a vDSO, in case symfile-mem.c happens to be linked in the build
(--enable-targets=all).
Tested on x86_64 Fedora 20.
gdb/
2014-10-10 Pedro Alves <palves@redhat.com>
* arch-utils.c (default_vsyscall_range): New function.
* arch-utils.h (default_vsyscall_range): New declaration.
* gdbarch.sh (vsyscall_range): New hook.
* gdbarch.h, gdbarch.c: Regenerate.
* linux-tdep.c (linux_vsyscall_range): New function.
(linux_init_abi): Install linux_vsyscall_range as
vsyscall_range gdbarch hook.
* memrange.c (address_in_mem_range): New function.
* memrange.h (address_in_mem_range): New declaration.
* symfile-mem.c (find_vdso_size): Delete function.
(add_vsyscall_page): Use gdbarch_vsyscall_range.
Diffstat (limited to 'gdb/gdbarch.h')
| -rw-r--r-- | gdb/gdbarch.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/gdb/gdbarch.h b/gdb/gdbarch.h index 6e84004..f5330c2 100644 --- a/gdb/gdbarch.h +++ b/gdb/gdbarch.h @@ -59,6 +59,7 @@ struct axs_value; struct stap_parse_info; struct ravenscar_arch_ops; struct elf_internal_linux_prpsinfo; +struct mem_range; /* The architecture associated with the inferior through the connection to the target. @@ -1320,6 +1321,15 @@ typedef int (gdbarch_auxv_parse_ftype) (struct gdbarch *gdbarch, gdb_byte **read extern int gdbarch_auxv_parse (struct gdbarch *gdbarch, gdb_byte **readptr, gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp); extern void set_gdbarch_auxv_parse (struct gdbarch *gdbarch, gdbarch_auxv_parse_ftype *auxv_parse); +/* Find the address range of the current inferior's vsyscall/vDSO, and + write it to *RANGE. If the vsyscall's length can't be determined, a + range with zero length is returned. Returns true if the vsyscall is + found, false otherwise. */ + +typedef int (gdbarch_vsyscall_range_ftype) (struct gdbarch *gdbarch, struct mem_range *range); +extern int gdbarch_vsyscall_range (struct gdbarch *gdbarch, struct mem_range *range); +extern void set_gdbarch_vsyscall_range (struct gdbarch *gdbarch, gdbarch_vsyscall_range_ftype *vsyscall_range); + /* Definition for an unknown syscall, used basically in error-cases. */ #define UNKNOWN_SYSCALL (-1) |