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Add cross platform SVR4 shared library support for PowerPC.

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This commit is contained in:
Kevin Buettner 2001-12-01 00:25:08 +00:00
parent 7e74fa0edf
commit 6ded7999cd
15 changed files with 77 additions and 11 deletions
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21
gdb/ChangeLog
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@ -1,3 +1,24 @@
2001-11-30 Kevin Buettner <kevinb@redhat.com>
* ppc-linux-tdep.c (solib-svr4.h): Include.
(ppc_linux_svr4_fetch_link_map_offsets): New function.
* ppc-tdep.h (ppc_linux_svr4_fetch_link_map_offsets): Declare.
* rs6000-tdep.c (solib-svr4.h): Include.
(rs6000_gdbarch_init): Set up ppc_linux_svr4_fetch_link_map_offsets()
as the link map offsets fetcher.
* config/powerpc/aix.mt (TDEPFILES): Add solib-svr4.o.
* config/powerpc/macos.mt (TDEPFILES): Likewise.
* config/powerpc/nbsd.mt (TDEPFILES): Likewise.
* config/powerpc/ppc-eabi.mt (TDEPFILES): Likewise.
* config/powerpc/ppc-sim.mt (TDEPFILES): Likewise.
* config/powerpc/ppcle-eabi.mt (TDEPFILES): Likewise.
* config/powerpc/ppcle-sim.mt (TDEPFILES): Likewise.
* config/powerpc/vxworks.mt (TDEPFILES): Likewise.
* config/rs6000/aix4.mt (TDEPFILES): Likewise.
* config/rs6000/rs6000.mt (TDEPFILES): Likewise.
* config/rs6000/rs6000lynx.mt (TDEPFILES): Likewise.
2001-11-30 Kevin Buettner <kevinb@redhat.com>
From Louis Hamilton <hamilton@redhat.com>:

2
gdb/config/powerpc/aix.mt
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@ -1,3 +1,3 @@
# Target: PowerPC running AIX
TDEPFILES= rs6000-tdep.o ppc-linux-tdep.o
TDEPFILES= rs6000-tdep.o ppc-linux-tdep.o solib.o solib-svr4.o
TM_FILE= tm-ppc-aix.h

2
gdb/config/powerpc/macos.mt
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@ -1,3 +1,3 @@
# Target: PowerMac (PowerPC running MacOS)
TDEPFILES= rs6000-tdep.o xcoffread.o ppc-linux-tdep.o
TDEPFILES= rs6000-tdep.o xcoffread.o ppc-linux-tdep.o solib.o solib-svr4.o
TM_FILE= tm-macos.h

2
gdb/config/powerpc/nbsd.mt
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@ -1,5 +1,5 @@
# Target: PowerPC, running NetBSD
TDEPFILES= rs6000-tdep.o ppc-linux-tdep.o
TDEPFILES= rs6000-tdep.o ppc-linux-tdep.o solib.o solib-svr4.o
TM_FILE= tm-nbsd.h
GDBSERVER_DEPFILES= low-nbsd.o

2
gdb/config/powerpc/ppc-eabi.mt
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@ -1,3 +1,3 @@
# Target: PowerPC running eabi
TDEPFILES= rs6000-tdep.o monitor.o dsrec.o ppcbug-rom.o dink32-rom.o ppc-bdm.o ocd.o remote-sds.o ppc-linux-tdep.o
TDEPFILES= rs6000-tdep.o monitor.o dsrec.o ppcbug-rom.o dink32-rom.o ppc-bdm.o ocd.o remote-sds.o ppc-linux-tdep.o solib.o solib-svr4.o
TM_FILE= tm-ppc-eabi.h

2
gdb/config/powerpc/ppc-sim.mt
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@ -1,5 +1,5 @@
# Target: PowerPC running eabi and including the simulator
TDEPFILES= rs6000-tdep.o monitor.o dsrec.o ppcbug-rom.o dink32-rom.o ppc-bdm.o ocd.o remote-sds.o ppc-linux-tdep.o
TDEPFILES= rs6000-tdep.o monitor.o dsrec.o ppcbug-rom.o dink32-rom.o ppc-bdm.o ocd.o remote-sds.o ppc-linux-tdep.o solib.o solib-svr4.o
TM_FILE= tm-ppc-eabi.h
SIM_OBS = remote-sim.o

2
gdb/config/powerpc/ppcle-eabi.mt
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@ -1,3 +1,3 @@
# Target: PowerPC running eabi in little endian mode
TDEPFILES= rs6000-tdep.o monitor.o dsrec.o ppcbug-rom.o ppc-bdm.o ocd.o ppc-linux-tdep.o
TDEPFILES= rs6000-tdep.o monitor.o dsrec.o ppcbug-rom.o ppc-bdm.o ocd.o ppc-linux-tdep.o solib.o solib-svr4.o
TM_FILE= tm-ppcle-eabi.h

2
gdb/config/powerpc/ppcle-sim.mt
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@ -1,5 +1,5 @@
# Target: PowerPC running eabi in little endian mode under the simulator
TDEPFILES= rs6000-tdep.o monitor.o dsrec.o ppcbug-rom.o ppc-bdm.o ocd.o ppc-linux-tdep.o
TDEPFILES= rs6000-tdep.o monitor.o dsrec.o ppcbug-rom.o ppc-bdm.o ocd.o ppc-linux-tdep.o solib.o solib-svr4.o
TM_FILE= tm-ppcle-eabi.h
SIM_OBS = remote-sim.o

2
gdb/config/powerpc/vxworks.mt
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@ -1,3 +1,3 @@
# Target: Powerpc running VxWorks
TDEPFILES= rs6000-tdep.o ppc-linux-tdep.o
TDEPFILES= rs6000-tdep.o ppc-linux-tdep.o solib.o solib-svr4.o
TM_FILE= tm-vxworks.h

2
gdb/config/rs6000/aix4.mt
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@ -1,3 +1,3 @@
# Target: IBM RS/6000 running AIX4
TDEPFILES= rs6000-tdep.o xcoffread.o ppc-linux-tdep.o
TDEPFILES= rs6000-tdep.o xcoffread.o ppc-linux-tdep.o solib.o solib-svr4.o
TM_FILE= tm-rs6000-aix4.h

2
gdb/config/rs6000/rs6000.mt
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@ -1,3 +1,3 @@
# Target: IBM RS/6000 running AIX
TDEPFILES= rs6000-tdep.o xcoffread.o ppc-linux-tdep.o
TDEPFILES= rs6000-tdep.o xcoffread.o ppc-linux-tdep.o solib.o solib-svr4.o
TM_FILE= tm-rs6000.h

2
gdb/config/rs6000/rs6000lynx.mt
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@ -1,3 +1,3 @@
# Target: IBM RS6000 running LynxOS
TDEPFILES= coff-solib.o rs6000-tdep.o ppc-linux-tdep.o
TDEPFILES= coff-solib.o rs6000-tdep.o ppc-linux-tdep.o solib.o solib-svr4.o
TM_FILE= tm-rs6000ly.h

41
gdb/ppc-linux-tdep.c
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@ -32,6 +32,7 @@
#include "regcache.h"
#include "value.h"
#include "solib-svr4.h"
#include "ppc-tdep.h"
/* The following two instructions are used in the signal trampoline
@ -763,3 +764,43 @@ ppc_linux_memory_remove_breakpoint (CORE_ADDR addr, char *contents_cache)
return val;
}
/* Fetch (and possibly build) an appropriate link_map_offsets
structure for Linux/PPC targets using the struct offsets
defined in link.h (but without actual reference to that file).
This makes it possible to access Linux/PPC shared libraries from a
GDB that was not built on an Linux/PPC host (for cross debugging). */
struct link_map_offsets *
ppc_linux_svr4_fetch_link_map_offsets (void)
{
static struct link_map_offsets lmo;
static struct link_map_offsets *lmp = NULL;
if (lmp == NULL)
{
lmp = &lmo;
lmo.r_debug_size = 8; /* The actual size is 20 bytes, but
this is all we need. */
lmo.r_map_offset = 4;
lmo.r_map_size = 4;
lmo.link_map_size = 20; /* The actual size is 560 bytes, but
this is all we need. */
lmo.l_addr_offset = 0;
lmo.l_addr_size = 4;
lmo.l_name_offset = 4;
lmo.l_name_size = 4;
lmo.l_next_offset = 12;
lmo.l_next_size = 4;
lmo.l_prev_offset = 16;
lmo.l_prev_size = 4;
}
return lmp;
}

1
gdb/ppc-tdep.h
View file

@ -34,6 +34,7 @@ CORE_ADDR ppc_linux_frame_chain (struct frame_info *);
CORE_ADDR ppc_sysv_abi_push_arguments (int, struct value **, CORE_ADDR, int,
CORE_ADDR);
int ppc_linux_memory_remove_breakpoint (CORE_ADDR addr, char *contents_cache);
struct link_map_offsets *ppc_linux_svr4_fetch_link_map_offsets (void);
/* From rs6000-tdep.c... */

3
gdb/rs6000-tdep.c
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@ -40,6 +40,7 @@
#include "elf-bfd.h"
#include "solib-svr4.h"
#include "ppc-tdep.h"
/* If the kernel has to deliver a signal, it pushes a sigcontext
@ -2333,6 +2334,8 @@ rs6000_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
set_gdbarch_memory_remove_breakpoint (gdbarch,
ppc_linux_memory_remove_breakpoint);
set_solib_svr4_fetch_link_map_offsets
(gdbarch, ppc_linux_svr4_fetch_link_map_offsets);
}
else
{