From 57e76facc3ddc7822ff71a3fcc55b324c1f0bb1d Mon Sep 17 00:00:00 2001 From: Michael Snyder Date: Wed, 24 Apr 2002 21:44:47 +0000 Subject: 2002-04-24 Roland McGrath * config/i386/i386gnu.mh (NATDEPFILES): Add core-regset.o here. * i386gnu-nat.c [HAVE_SYS_PROCFS_H] (supply_gregset, supply_fpregset): New functions. * gnu-nat.c (gnu_find_memory_regions): New function. (init_gnu_ops): Set `to_find_memory_regions' hook to that. (gnu_xfer_memory): Add a cast. --- gdb/gnu-nat.c | 74 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 73 insertions(+), 1 deletion(-) (limited to 'gdb/gnu-nat.c') diff --git a/gdb/gnu-nat.c b/gdb/gnu-nat.c index 95a789966e..824ee83899 100644 --- a/gdb/gnu-nat.c +++ b/gdb/gnu-nat.c @@ -2458,7 +2458,7 @@ gnu_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write, else { inf_debug (current_inferior, "%s %p[%d] %s %p", - write ? "writing" : "reading", memaddr, len, + write ? "writing" : "reading", (void *) memaddr, len, write ? "<--" : "-->", myaddr); if (write) return gnu_write_inferior (task, memaddr, myaddr, len); @@ -2467,6 +2467,77 @@ gnu_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write, } } +/* Call FUNC on each memory region in the task. */ +static int +gnu_find_memory_regions (int (*func) (CORE_ADDR, + unsigned long, + int, int, int, + void *), + void *data) +{ + error_t err; + task_t task; + vm_address_t region_address, last_region_address, last_region_end; + vm_prot_t last_protection; + + if (current_inferior == 0 || current_inferior->task == 0) + return 0; + task = current_inferior->task->port; + if (task == MACH_PORT_NULL) + return 0; + + region_address = last_region_address = last_region_end = VM_MIN_ADDRESS; + last_protection = VM_PROT_NONE; + while (region_address < VM_MAX_ADDRESS) + { + vm_prot_t protection; + vm_prot_t max_protection; + vm_inherit_t inheritance; + boolean_t shared; + mach_port_t object_name; + vm_offset_t offset; + vm_size_t region_length = VM_MAX_ADDRESS - region_address; + vm_address_t old_address = region_address; + + err = vm_region (task, + ®ion_address, + ®ion_length, + &protection, + &max_protection, + &inheritance, + &shared, + &object_name, + &offset); + if (err == KERN_NO_SPACE) + break; + if (err != KERN_SUCCESS) + { + warning ("vm_region failed: %s", mach_error_string (err)); + return -1; + } + + if (protection == last_protection && region_address == last_region_end) + /* This region is contiguous with and indistinguishable from + the previous one, so we just extend that one. */ + last_region_end = region_address += region_length; + else + { + /* This region is distinct from the last one we saw, so report + that previous one. */ + if (last_protection != VM_PROT_NONE) + (*func) (last_region_address, + last_region_end - last_region_address, + last_protection & VM_PROT_READ, + last_protection & VM_PROT_WRITE, + last_protection & VM_PROT_EXECUTE, + data); + last_region_address = region_address; + last_region_end = region_address += region_length; + last_protection = protection; + } + } +} + /* Return printable description of proc. */ char * @@ -2524,6 +2595,7 @@ init_gnu_ops (void) gnu_ops.to_store_registers = gnu_store_registers; /* to_store_registers */ gnu_ops.to_prepare_to_store = gnu_prepare_to_store; /* to_prepare_to_store */ gnu_ops.to_xfer_memory = gnu_xfer_memory; /* to_xfer_memory */ + gnu_ops.to_find_memory_regions = gnu_find_memory_regions; gnu_ops.to_files_info = 0; /* to_files_info */ gnu_ops.to_insert_breakpoint = memory_insert_breakpoint; gnu_ops.to_remove_breakpoint = memory_remove_breakpoint; -- cgit v1.2.1