[COMMIT] Disentangle SPARC Linux from Solaris

Mark Kettenis
2005-04-22T19:07:23Z

It doesn't really make sense anymore for the Linux targets to be based
on thee Solaris targets.

Committed,

Mark

Index: ChangeLog
from Mark Kettenis <kettenis@gnu.org>

* sparc-linux-tdep.c: Update copyright year.
(sparc32_linux_init_abi): Set skip_trampoline_code and
solib_svr4_fetch_link_map_offsets. Set TDEP->plt_entry_size.
Don't set software_single_step and don't call
sparc32_sol2_init_abi.
* sparc64-linux-tdep.c: Update copyright year.
(sparc64_linux_init_abi): Set skip_trampoline_code and
solib_svr4_fetch_link_map_offsets. Set TDEP->plt_entry_size.
Don't set software_single_step and don't call
sparc64_sol2_init_abi.

Index: sparc-linux-tdep.c
===================================================================
RCS file: /cvs/src/src/gdb/sparc-linux-tdep.c,v
retrieving revision 1.11
diff -u -p -r1.11 sparc-linux-tdep.c
--- sparc-linux-tdep.c 21 Apr 2005 22:04:04 -0000 1.11
+++ sparc-linux-tdep.c 22 Apr 2005 19:04:19 -0000
@@ -1,6 +1,6 @@
/* Target-dependent code for GNU/Linux SPARC.

- Copyright 2003, 2004 Free Software Foundation, Inc.
+ Copyright 2003, 2004, 2005 Free Software Foundation, Inc.

This file is part of GDB.

@@ -144,14 +144,19 @@ sparc32_linux_sigframe_init (const struc
static void
sparc32_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+
tramp_frame_prepend_unwinder (gdbarch, &sparc32_linux_sigframe);
tramp_frame_prepend_unwinder (gdbarch, &sparc32_linux_rt_sigframe);

- /* GNU/Linux is very similar to Solaris ... */
- sparc32_sol2_init_abi (info, gdbarch);
-
- /* ... but doesn't have kernel-assisted single-stepping support. */
- set_gdbarch_software_single_step (gdbarch, sparc_software_single_step);
+ /* GNU/Linux has SVR4-style shared libraries... */
+ set_gdbarch_skip_trampoline_code (gdbarch, find_solib_trampoline_target);
+ set_solib_svr4_fetch_link_map_offsets
+ (gdbarch, svr4_ilp32_fetch_link_map_offsets);
+
+ /* ...which means that we need some special handling when doing
+ prologue analysis. */
+ tdep->plt_entry_size = 12;

/* GNU/Linux doesn't support the 128-bit `long double' from the psABI. */
set_gdbarch_long_double_bit (gdbarch, 64);
Index: sparc64-linux-tdep.c
===================================================================
RCS file: /cvs/src/src/gdb/sparc64-linux-tdep.c,v
retrieving revision 1.6
diff -u -p -r1.6 sparc64-linux-tdep.c
--- sparc64-linux-tdep.c 21 Apr 2005 22:04:04 -0000 1.6
+++ sparc64-linux-tdep.c 22 Apr 2005 19:04:20 -0000
@@ -1,6 +1,6 @@
/* Target-dependent code for GNU/Linux UltraSPARC.

- Copyright 2003, 2004 Free Software Foundation, Inc.
+ Copyright 2003, 2004, 2005 Free Software Foundation, Inc.

This file is part of GDB.

@@ -106,11 +106,14 @@ sparc64_linux_init_abi (struct gdbarch_i

tramp_frame_prepend_unwinder (gdbarch, &sparc64_linux_rt_sigframe);

- /* GNU/Linux is very similar to Solaris ... */
- sparc64_sol2_init_abi (info, gdbarch);
-
- /* ... but doesn't have kernel-assisted single-stepping support. */
- set_gdbarch_software_single_step (gdbarch, sparc_software_single_step);
+ /* GNU/Linux has SVR4-style shared libraries... */
+ set_gdbarch_skip_trampoline_code (gdbarch, find_solib_trampoline_target);
+ set_solib_svr4_fetch_link_map_offsets
+ (gdbarch, svr4_lp64_fetch_link_map_offsets);
+
+ /* ...which means that we need some special handling when doing
+ prologue analysis. */
+ tdep->plt_entry_size = 16;

/* Enable TLS support. */
set_gdbarch_fetch_tls_load_module_address (gdbarch,