diff options
Diffstat (limited to 'gdb/ppc64-tdep.c')
| -rw-r--r-- | gdb/ppc64-tdep.c | 31 |
1 files changed, 29 insertions, 2 deletions
diff --git a/gdb/ppc64-tdep.c b/gdb/ppc64-tdep.c index cbbbedc..8acd754 100644 --- a/gdb/ppc64-tdep.c +++ b/gdb/ppc64-tdep.c @@ -303,6 +303,29 @@ static struct ppc_insn_pattern ppc64_standard_linkage7[] = { 0, 0, 0 } }; +/* ELFv2 PLT call stub to access PLT entries more than +/- 32k from r2, + supporting fusion. */ + +static struct ppc_insn_pattern ppc64_standard_linkage8[] = + { + /* std r2, 24(r1) <optional> */ + { -1, insn_ds (62, 2, 1, 24, 0), 1 }, + + /* addis r12, r2, <any> */ + { insn_d (-1, -1, -1, 0), insn_d (15, 12, 2, 0), 0 }, + + /* ld r12, <any>(r12) */ + { insn_ds (-1, -1, -1, 0, -1), insn_ds (58, 12, 12, 0, 0), 0 }, + + /* mtctr r12 */ + { insn_xfx (-1, -1, -1, -1), insn_xfx (31, 12, 9, 467), 0 }, + + /* bctr */ + { -1, 0x4e800420, 0 }, + + { 0, 0, 0 } + }; + /* When the dynamic linker is doing lazy symbol resolution, the first call to a function in another object will go like this: @@ -437,10 +460,14 @@ ppc64_skip_trampoline_code (struct frame_info *frame, CORE_ADDR pc) ARRAY_SIZE (ppc64_standard_linkage4))), MAX (MAX (ARRAY_SIZE (ppc64_standard_linkage5), ARRAY_SIZE (ppc64_standard_linkage6)), - ARRAY_SIZE (ppc64_standard_linkage7))) - 1]; + MAX (ARRAY_SIZE (ppc64_standard_linkage7), + ARRAY_SIZE (ppc64_standard_linkage8)))) + - 1]; CORE_ADDR target; - if (ppc_insns_match_pattern (frame, pc, ppc64_standard_linkage7, insns)) + if (ppc_insns_match_pattern (frame, pc, ppc64_standard_linkage8, insns)) + pc = ppc64_standard_linkage4_target (frame, pc, insns); + else if (ppc_insns_match_pattern (frame, pc, ppc64_standard_linkage7, insns)) pc = ppc64_standard_linkage3_target (frame, pc, insns); else if (ppc_insns_match_pattern (frame, pc, ppc64_standard_linkage6, insns)) pc = ppc64_standard_linkage4_target (frame, pc, insns); |