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gdb/gdb-6.3-ia64-sigtramp-frame-20050708.patch
Jan Kratochvil 0911f375d9 Rebase to: gdb-7.0.1-25.fc12
2010-01-12 22:15:57 +00:00

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2005-07-08 Jeff Johnston <jjohnstn@redhat.com>
* ia64-tdep.c (ia64_sigtramp_frame_prev_register): Build
pseudo-registers the same as ia64_pseudo_register_read.
2008-04-16 Yi Zhan <yi.zhan@intel.com>
* ia64-tdep.c (ia64_sigtramp_frame_prev_register): Fix an
ISO C compliance compilation error.
2008-02-12 Jan Kratochvil <jan.kratochvil@redhat.com>
Port to gdb-6.8.50.20081128, follow the upstream change:
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/ia64-tdep.c.diff?cvsroot=src&r1=1.176&r2=1.177
Index: gdb-6.8.50.20081128/gdb/ia64-tdep.c
===================================================================
--- gdb-6.8.50.20081128.orig/gdb/ia64-tdep.c 2008-11-26 06:27:48.000000000 +0100
+++ gdb-6.8.50.20081128/gdb/ia64-tdep.c 2008-12-02 19:04:32.000000000 +0100
@@ -2107,6 +2107,94 @@ ia64_sigtramp_frame_prev_register (struc
return frame_unwind_got_constant (this_frame, regnum, pc);
}
+ /* Red Hat patch begin. */
+ else if (IA64_NAT0_REGNUM <= regnum && regnum <= IA64_NAT31_REGNUM)
+ {
+ /* NAT pseudo registers 0-31: get them from UNAT.
+ * "copied" from ia64_pseudo_register_read() */
+ ULONGEST unatN_val;
+ ULONGEST unat;
+ read_memory (cache->saved_regs[IA64_UNAT_REGNUM], (char *) &unat,
+ register_size (target_gdbarch, IA64_UNAT_REGNUM));
+ unatN_val = (unat & (1LL << (regnum - IA64_NAT0_REGNUM))) != 0;
+ return frame_unwind_got_constant (this_frame, regnum, unatN_val);
+ }
+ else if (IA64_NAT32_REGNUM <= regnum && regnum <= IA64_NAT127_REGNUM)
+ {
+ /* NAT pseudo registers 32-127.
+ * "copied" from ia64_pseudo_register_read()
+ * FIXME: Not currently tested -- cannot get the frame to include
+ * NAT32-NAT127. */
+ ULONGEST bsp;
+ ULONGEST cfm;
+ ULONGEST natN_val = 0;
+ CORE_ADDR gr_addr = 0, nat_addr = 0;
+
+ read_memory (cache->saved_regs[IA64_BSP_REGNUM], (char *) &bsp,
+ register_size (target_gdbarch, IA64_BSP_REGNUM));
+ read_memory (cache->saved_regs[IA64_CFM_REGNUM], (char *) &cfm,
+ register_size (target_gdbarch, IA64_CFM_REGNUM));
+
+ /* The bsp points at the end of the register frame so we
+ subtract the size of frame from it to get start of register frame. */
+ bsp = rse_address_add (bsp, -(cfm & 0x7f));
+
+ if ((cfm & 0x7f) > regnum - V32_REGNUM)
+ gr_addr = rse_address_add (bsp, (regnum - V32_REGNUM));
+
+ if (gr_addr != 0)
+ {
+ /* Compute address of nat collection bits */
+ CORE_ADDR nat_collection;
+ int nat_bit;
+ nat_addr = gr_addr | 0x1f8;
+ /* If our nat collection address is bigger than bsp, we have to get
+ the nat collection from rnat. Otherwise, we fetch the nat
+ collection from the computed address. FIXME: Do not know if
+ RNAT can be not stored in the frame--being extra cautious. */
+ if (nat_addr >= bsp)
+ {
+ nat_addr = cache->saved_regs[IA64_RNAT_REGNUM];
+ if (nat_addr != 0)
+ read_memory (nat_addr, (char *) &nat_collection,
+ register_size (target_gdbarch, IA64_RNAT_REGNUM));
+ }
+ else
+ nat_collection = read_memory_integer (nat_addr, 8, BFD_ENDIAN_LITTLE);
+ if (nat_addr != 0)
+ {
+ nat_bit = (gr_addr >> 3) & 0x3f;
+ natN_val = (nat_collection >> nat_bit) & 1;
+ return frame_unwind_got_constant (this_frame, regnum, natN_val);
+ }
+ }
+ warning (_("ia64_sigtramp_frame_prev_register: unhandled register %d"),
+ regnum);
+ }
+ else if (regnum == VBOF_REGNUM)
+ {
+ /* BOF pseudo register.
+ * "copied" from ia64_pseudo_register_read()
+ *
+ * A virtual register frame start is provided for user convenience.
+ * It can be calculated as the bsp - sof (sizeof frame). */
+ ULONGEST bsp;
+ ULONGEST cfm;
+ ULONGEST bof;
+
+ read_memory (cache->saved_regs[IA64_BSP_REGNUM], (char *) &bsp,
+ register_size (target_gdbarch, IA64_BSP_REGNUM));
+ read_memory (cache->saved_regs[IA64_CFM_REGNUM], (char *) &cfm,
+ register_size (target_gdbarch, IA64_CFM_REGNUM));
+
+ /* The bsp points at the end of the register frame so we
+ subtract the size of frame from it to get beginning of frame. */
+ bof = rse_address_add (bsp, -(cfm & 0x7f));
+
+ return frame_unwind_got_constant (this_frame, regnum, bof);
+ }
+ /* Red Hat patch end. */
+
else if ((regnum >= IA64_GR32_REGNUM && regnum <= IA64_GR127_REGNUM)
|| (regnum >= V32_REGNUM && regnum <= V127_REGNUM))
{
@@ -2121,7 +2209,42 @@ ia64_sigtramp_frame_prev_register (struc
return frame_unwind_got_constant (this_frame, regnum, 0);
}
- else /* All other registers not listed above. */
+ /* Red Hat patch begin. */
+ else if (VP0_REGNUM <= regnum && regnum <= VP63_REGNUM)
+ {
+ /* VP 0-63.
+ * "copied" from ia64_pseudo_register_read()
+ *
+ * FIXME: Not currently tested--cannot get the frame to include PR. */
+ CORE_ADDR pr_addr = 0;
+
+ pr_addr = cache->saved_regs[IA64_PR_REGNUM];
+ if (pr_addr != 0)
+ {
+ ULONGEST pr;
+ ULONGEST cfm;
+ ULONGEST prN_val;
+ read_memory (pr_addr, (char *) &pr,
+ register_size (target_gdbarch, IA64_PR_REGNUM));
+ read_memory (cache->saved_regs[IA64_CFM_REGNUM], (char *) &cfm,
+ register_size (target_gdbarch, IA64_CFM_REGNUM));
+
+ /* Get the register rename base for this frame and adjust the
+ * register name to take rotation into account. */
+ if (VP16_REGNUM <= regnum && regnum <= VP63_REGNUM)
+ {
+ int rrb_pr = (cfm >> 32) & 0x3f;
+ regnum = VP16_REGNUM + ((regnum - VP16_REGNUM) + rrb_pr) % 48;
+ }
+ prN_val = (pr & (1LL << (regnum - VP0_REGNUM))) != 0;
+ return frame_unwind_got_constant (this_frame, regnum, prN_val);
+ }
+ warning (_("ia64_sigtramp_frame_prev_register: unhandled register %d"),
+ regnum);
+ }
+ /* Red Hat patch end. */
+
+ /* All other registers not listed above. */
{
CORE_ADDR addr = cache->saved_regs[regnum];
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