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authorJohn Baldwin <jhb@FreeBSD.org>2019-03-12 13:39:02 -0700
committerJohn Baldwin <jhb@FreeBSD.org>2019-03-12 13:45:47 -0700
commit6e056c817845f3d736a1be6b68c69b439c6c6d25 (patch)
treec5757ebd000ccd8a2d63440d6ef19db9e8c89d8d /gdb/gdbarch.h
parentcd250a1898bb6fdb41f4a1063dbcfac04affcd11 (diff)
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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.h')
-rw-r--r--gdb/gdbarch.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/gdb/gdbarch.h b/gdb/gdbarch.h
index 7561837..abb72e7 100644
--- a/gdb/gdbarch.h
+++ b/gdb/gdbarch.h
@@ -649,6 +649,18 @@ typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype) (struct objfile
extern CORE_ADDR gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, struct objfile *objfile);
extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, gdbarch_fetch_tls_load_module_address_ftype *fetch_tls_load_module_address);
+/* Return the thread-local address at OFFSET in the thread-local
+ storage for the thread PTID and the shared library or executable
+ file given by LM_ADDR. If that block of thread-local storage hasn't
+ been allocated yet, this function may throw an error. LM_ADDR may
+ be zero for statically linked multithreaded inferiors. */
+
+extern int gdbarch_get_thread_local_address_p (struct gdbarch *gdbarch);
+
+typedef CORE_ADDR (gdbarch_get_thread_local_address_ftype) (struct gdbarch *gdbarch, ptid_t ptid, CORE_ADDR lm_addr, CORE_ADDR offset);
+extern CORE_ADDR gdbarch_get_thread_local_address (struct gdbarch *gdbarch, ptid_t ptid, CORE_ADDR lm_addr, CORE_ADDR offset);
+extern void set_gdbarch_get_thread_local_address (struct gdbarch *gdbarch, gdbarch_get_thread_local_address_ftype *get_thread_local_address);
+
extern CORE_ADDR gdbarch_frame_args_skip (struct gdbarch *gdbarch);
extern void set_gdbarch_frame_args_skip (struct gdbarch *gdbarch, CORE_ADDR frame_args_skip);