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| author | John Baldwin <jhb@FreeBSD.org> | 2019-03-12 13:39:02 -0700 |
|---|---|---|
| committer | John Baldwin <jhb@FreeBSD.org> | 2019-03-12 13:45:47 -0700 |
| commit | 6e056c817845f3d736a1be6b68c69b439c6c6d25 (patch) | |
| tree | c5757ebd000ccd8a2d63440d6ef19db9e8c89d8d /gdb/gdbarch.c | |
| parent | cd250a1898bb6fdb41f4a1063dbcfac04affcd11 (diff) | |
| download | gdb-6e056c817845f3d736a1be6b68c69b439c6c6d25.zip gdb-6e056c817845f3d736a1be6b68c69b439c6c6d25.tar.gz gdb-6e056c817845f3d736a1be6b68c69b439c6c6d25.tar.bz2 | |
Add a new gdbarch method to resolve the address of TLS variables.
Permit TLS variable addresses to be resolved purely by an ABI rather
than requiring a target method. This doesn't try the target method if
the ABI function is present (even if the ABI function fails) to
simplify error handling.
gdb/ChangeLog:
* gdbarch.sh (get_thread_local_address): New method.
* gdbarch.h, gdbarch.c: Regenerate.
* target.c (target_translate_tls_address): Use
gdbarch_get_thread_local_address if present instead of
target::get_thread_local_address.
Diffstat (limited to 'gdb/gdbarch.c')
| -rw-r--r-- | gdb/gdbarch.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/gdb/gdbarch.c b/gdb/gdbarch.c index 434ee3b..2b3fcef 100644 --- a/gdb/gdbarch.c +++ b/gdb/gdbarch.c @@ -251,6 +251,7 @@ struct gdbarch CORE_ADDR deprecated_function_start_offset; gdbarch_remote_register_number_ftype *remote_register_number; gdbarch_fetch_tls_load_module_address_ftype *fetch_tls_load_module_address; + gdbarch_get_thread_local_address_ftype *get_thread_local_address; CORE_ADDR frame_args_skip; gdbarch_unwind_pc_ftype *unwind_pc; gdbarch_unwind_sp_ftype *unwind_sp; @@ -613,6 +614,7 @@ verify_gdbarch (struct gdbarch *gdbarch) /* Skip verify of deprecated_function_start_offset, invalid_p == 0 */ /* Skip verify of remote_register_number, invalid_p == 0 */ /* Skip verify of fetch_tls_load_module_address, has predicate. */ + /* Skip verify of get_thread_local_address, has predicate. */ /* Skip verify of frame_args_skip, invalid_p == 0 */ /* Skip verify of unwind_pc, invalid_p == 0 */ /* Skip verify of unwind_sp, invalid_p == 0 */ @@ -1074,6 +1076,12 @@ gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file) "gdbarch_dump: get_syscall_number = <%s>\n", host_address_to_string (gdbarch->get_syscall_number)); fprintf_unfiltered (file, + "gdbarch_dump: gdbarch_get_thread_local_address_p() = %d\n", + gdbarch_get_thread_local_address_p (gdbarch)); + fprintf_unfiltered (file, + "gdbarch_dump: get_thread_local_address = <%s>\n", + host_address_to_string (gdbarch->get_thread_local_address)); + fprintf_unfiltered (file, "gdbarch_dump: gnu_triplet_regexp = <%s>\n", host_address_to_string (gdbarch->gnu_triplet_regexp)); fprintf_unfiltered (file, @@ -3018,6 +3026,30 @@ set_gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, gdbarch->fetch_tls_load_module_address = fetch_tls_load_module_address; } +int +gdbarch_get_thread_local_address_p (struct gdbarch *gdbarch) +{ + gdb_assert (gdbarch != NULL); + return gdbarch->get_thread_local_address != NULL; +} + +CORE_ADDR +gdbarch_get_thread_local_address (struct gdbarch *gdbarch, ptid_t ptid, CORE_ADDR lm_addr, CORE_ADDR offset) +{ + gdb_assert (gdbarch != NULL); + gdb_assert (gdbarch->get_thread_local_address != NULL); + if (gdbarch_debug >= 2) + fprintf_unfiltered (gdb_stdlog, "gdbarch_get_thread_local_address called\n"); + return gdbarch->get_thread_local_address (gdbarch, ptid, lm_addr, offset); +} + +void +set_gdbarch_get_thread_local_address (struct gdbarch *gdbarch, + gdbarch_get_thread_local_address_ftype get_thread_local_address) +{ + gdbarch->get_thread_local_address = get_thread_local_address; +} + CORE_ADDR gdbarch_frame_args_skip (struct gdbarch *gdbarch) { |