diff options
Diffstat (limited to 'gdb/ppc-linux-tdep.c')
| -rw-r--r-- | gdb/ppc-linux-tdep.c | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/gdb/ppc-linux-tdep.c b/gdb/ppc-linux-tdep.c index 9284751fd0c..59930396c0b 100644 --- a/gdb/ppc-linux-tdep.c +++ b/gdb/ppc-linux-tdep.c @@ -63,6 +63,8 @@ offsetof(struct sigcontext_struct, handler) == 0x14 */ #define PPC_LINUX_HANDLER_PTR_OFFSET (PPC_LINUX_SIGNAL_FRAMESIZE + 0x14) +#define TDEP gdbarch_tdep (current_gdbarch) + /* From <asm/ptrace.h>, values for PT_NIP, PT_R1, and PT_LNK */ #define PPC_LINUX_PT_R0 0 #define PPC_LINUX_PT_R1 1 @@ -755,3 +757,64 @@ _initialize_ppc_linux_tdep (void) ppc_linux_init_abi); add_core_fns (&ppc_linux_regset_core_fns); } + +struct link_map_offsets * + ppc64_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 = 16;/* The actual size is xx bytes, but + this is all we need. */ + lmo.r_map_offset = 8; + lmo.r_map_size = 8; + lmo.link_map_size = 40; /* The actual size is xxx bytes, but + this is all we need. */ + lmo.l_addr_offset = 0; + lmo.l_addr_size = 8; + lmo.l_name_offset = 8; + lmo.l_name_size = 8; + lmo.l_next_offset = 24; + lmo.l_next_size = 8; + lmo.l_prev_offset = 32; + lmo.l_prev_size = 8; + } + + return lmp; +} + + +/* Support for CONVERT_FROM_FUNC_PTR_ADDR(ADDR). + Duplicate of RS6000 function, except ppc64_linux requires relocated address. */ +static CORE_ADDR +read_memory_addr (CORE_ADDR memaddr, int len) +{ + return read_memory_unsigned_integer (memaddr, len); +} + + +CORE_ADDR +ppc64_linux_convert_from_func_ptr_addr (CORE_ADDR addr) +{ + long long my_adder; + struct obj_section *s; + CORE_ADDR retval; + extern struct obj_section *find_pc_section(CORE_ADDR); + + /* this should be the base address that the object (containing the func_ptr_addr) is loaded at. */ + my_adder = 0x7fe0000000; + + s = find_pc_section (my_adder + addr); + if (s && s->the_bfd_section->flags & SEC_CODE) + return addr; + + /* ADDR is in the data space, so it's a special function pointer. */ + retval = read_memory_addr (my_adder + addr, TDEP->wordsize); + /* printf("reading 0x%lx ",my_adder+addr); */ + /* printf("ppc64...convert_func_ptr addr:0x%lx new:0x%lx\n",addr,retval); */ + return retval; +} |