mirror of
https://github.com/espressif/binutils-gdb.git
synced 2025-08-06 14:49:38 +08:00
* inflow.c (terminal_init_inferior): Temporarily use Lynx PIDGET
macro to set process groups. * infptrace.c (child_resume): Temporarily use Lynx PIDGET to specify resumption of all threads. * infrun.c (wait_for_inferior): Fix handling of thread-specific breakpoints for systems where DECR_PC_AFTER_BREAK > 0 (ie: backup PC by the right amount when continuing the thread). * thread.c (thread_apply_command): Add the `thread apply' command to apply a given GDB command to a list of threads.
This commit is contained in:
Stu Grossman
118
gdb/infptrace.c
118
gdb/infptrace.c
@ -41,6 +41,9 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#if !defined (PT_KILL)
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#define PT_KILL 8
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#endif
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#if !defined (PT_STEP)
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#define PT_STEP 9
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#define PT_CONTINUE 7
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#define PT_READ_U 3
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@ -49,7 +52,7 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#define PT_READ_D 2
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#define PT_WRITE_I 4
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#define PT_WRITE_D 5
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#endif /* No PT_KILL. */
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#endif /* No PT_STEP. */
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#ifndef PT_ATTACH
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#define PT_ATTACH PTRACE_ATTACH
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@ -62,11 +65,11 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#ifndef NO_SYS_FILE
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#include <sys/file.h>
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#endif
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#if 0
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/* Don't think this is used anymore. On the sequent (not sure whether it's
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dynix or ptx or both), it is included unconditionally by sys/user.h and
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not protected against multiple inclusion. */
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#include <sys/stat.h>
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#if defined (FIVE_ARG_PTRACE
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/* Deal with HPUX 8.0 braindamage. */
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#define ptrace(a,b,c,d) ptrace(a,b,c,d,0)
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#endif
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#if !defined (FETCH_INFERIOR_REGISTERS)
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@ -86,10 +89,16 @@ call_ptrace (request, pid, addr, data)
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PTRACE_ARG3_TYPE addr;
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int data;
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{
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return ptrace (request, pid, addr, data);
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return ptrace (request, pid, addr, data
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#if defined (FIVE_ARG_PTRACE)
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/* Deal with HPUX 8.0 braindamage. We never use the
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calls which require the fifth argument. */
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, 0
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#endif
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);
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}
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#ifdef DEBUG_PTRACE
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#if defined (DEBUG_PTRACE) || defined (FIVE_ARG_PTRACE)
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/* For the rest of the file, use an extra level of indirection */
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/* This lets us breakpoint usefully on call_ptrace. */
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#define ptrace call_ptrace
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@ -113,12 +122,20 @@ kill_inferior ()
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If SIGNAL is nonzero, give it that signal. */
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void
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child_resume (step, signal)
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child_resume (pid, step, signal)
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int pid;
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int step;
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int signal;
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{
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errno = 0;
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if (pid == -1)
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#ifdef PIDGET /* XXX Lynx */
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pid = PIDGET (inferior_pid);
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#else
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pid = inferior_pid;
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#endif
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/* An address of (PTRACE_ARG3_TYPE)1 tells ptrace to continue from where
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it was. (If GDB wanted it to start some other way, we have already
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written a new PC value to the child.)
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@ -129,9 +146,9 @@ child_resume (step, signal)
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instructions), so we don't have to worry about that here. */
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if (step)
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ptrace (PT_STEP, inferior_pid, (PTRACE_ARG3_TYPE) 1, signal);
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ptrace (PT_STEP, pid, (PTRACE_ARG3_TYPE) 1, signal);
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else
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ptrace (PT_CONTINUE, inferior_pid, (PTRACE_ARG3_TYPE) 1, signal);
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ptrace (PT_CONTINUE, pid, (PTRACE_ARG3_TYPE) 1, signal);
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if (errno)
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perror_with_name ("ptrace");
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@ -167,17 +184,22 @@ detach (signal)
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}
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#endif /* ATTACH_DETACH */
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#if !defined (FETCH_INFERIOR_REGISTERS)
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/* Default the type of the ptrace transfer to int. */
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#ifndef PTRACE_XFER_TYPE
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#define PTRACE_XFER_TYPE int
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#endif
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/* KERNEL_U_ADDR is the amount to subtract from u.u_ar0
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to get the offset in the core file of the register values. */
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#if defined (KERNEL_U_ADDR_BSD)
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#if defined (KERNEL_U_ADDR_BSD) && !defined (FETCH_INFERIOR_REGISTERS)
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/* Get kernel_u_addr using BSD-style nlist(). */
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CORE_ADDR kernel_u_addr;
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#endif /* KERNEL_U_ADDR_BSD. */
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void
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_initialize_kernel_u_addr ()
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{
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#if defined (KERNEL_U_ADDR_BSD) && !defined (FETCH_INFERIOR_REGISTERS)
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struct nlist names[2];
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names[0].n_un.n_name = "_u";
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@ -186,30 +208,10 @@ _initialize_kernel_u_addr ()
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kernel_u_addr = names[0].n_value;
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else
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fatal ("Unable to get kernel u area address.");
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}
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#endif /* KERNEL_U_ADDR_BSD. */
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#if defined (KERNEL_U_ADDR_HPUX)
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/* Get kernel_u_addr using HPUX-style nlist(). */
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CORE_ADDR kernel_u_addr;
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struct hpnlist {
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char * n_name;
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long n_value;
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unsigned char n_type;
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unsigned char n_length;
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short n_almod;
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short n_unused;
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};
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static struct hpnlist nl[] = {{ "_u", -1, }, { (char *) 0, }};
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/* read the value of the u area from the hp-ux kernel */
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void _initialize_kernel_u_addr ()
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{
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nlist ("/hp-ux", &nl);
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kernel_u_addr = nl[0].n_value;
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}
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#endif /* KERNEL_U_ADDR_HPUX. */
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#if !defined (FETCH_INFERIOR_REGISTERS)
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#if !defined (offsetof)
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#define offsetof(TYPE, MEMBER) ((unsigned long) &((TYPE *)0)->MEMBER)
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@ -244,7 +246,7 @@ fetch_register (regno)
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if (CANNOT_FETCH_REGISTER (regno))
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{
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bzero (buf, REGISTER_RAW_SIZE (regno)); /* Supply zeroes */
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memset (buf, '\0', REGISTER_RAW_SIZE (regno)); /* Supply zeroes */
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supply_register (regno, buf);
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return;
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}
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@ -252,12 +254,12 @@ fetch_register (regno)
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offset = U_REGS_OFFSET;
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regaddr = register_addr (regno, offset);
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for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (int))
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for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (PTRACE_XFER_TYPE))
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{
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errno = 0;
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*(int *) &buf[i] = ptrace (PT_READ_U, inferior_pid,
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(PTRACE_ARG3_TYPE) regaddr, 0);
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regaddr += sizeof (int);
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*(PTRACE_XFER_TYPE *) &buf[i] = ptrace (PT_READ_U, inferior_pid,
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(PTRACE_ARG3_TYPE) regaddr, 0);
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regaddr += sizeof (PTRACE_XFER_TYPE);
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if (errno != 0)
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{
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sprintf (mess, "reading register %s (#%d)", reg_names[regno], regno);
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@ -296,7 +298,6 @@ store_inferior_registers (regno)
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{
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register unsigned int regaddr;
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char buf[80];
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extern char registers[];
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register int i;
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unsigned int offset = U_REGS_OFFSET;
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@ -304,17 +305,17 @@ store_inferior_registers (regno)
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if (regno >= 0)
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{
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regaddr = register_addr (regno, offset);
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for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof(int))
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for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof(PTRACE_XFER_TYPE))
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{
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errno = 0;
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ptrace (PT_WRITE_U, inferior_pid, (PTRACE_ARG3_TYPE) regaddr,
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*(int *) ®isters[REGISTER_BYTE (regno) + i]);
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*(PTRACE_XFER_TYPE *) ®isters[REGISTER_BYTE (regno) + i]);
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if (errno != 0)
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{
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sprintf (buf, "writing register number %d(%d)", regno, i);
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perror_with_name (buf);
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}
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regaddr += sizeof(int);
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regaddr += sizeof(PTRACE_XFER_TYPE);
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}
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}
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else
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@ -324,17 +325,17 @@ store_inferior_registers (regno)
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if (CANNOT_STORE_REGISTER (regno))
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continue;
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regaddr = register_addr (regno, offset);
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for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof(int))
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for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof(PTRACE_XFER_TYPE))
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{
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errno = 0;
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ptrace (PT_WRITE_U, inferior_pid, (PTRACE_ARG3_TYPE) regaddr,
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*(int *) ®isters[REGISTER_BYTE (regno) + i]);
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*(PTRACE_XFER_TYPE *) ®isters[REGISTER_BYTE (regno) + i]);
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if (errno != 0)
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{
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sprintf (buf, "writing register number %d(%d)", regno, i);
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perror_with_name (buf);
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}
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regaddr += sizeof(int);
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regaddr += sizeof(PTRACE_XFER_TYPE);
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}
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}
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}
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@ -366,18 +367,20 @@ child_xfer_memory (memaddr, myaddr, len, write, target)
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{
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register int i;
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/* Round starting address down to longword boundary. */
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register CORE_ADDR addr = memaddr & - sizeof (int);
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register CORE_ADDR addr = memaddr & - sizeof (PTRACE_XFER_TYPE);
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/* Round ending address up; get number of longwords that makes. */
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register int count
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= (((memaddr + len) - addr) + sizeof (int) - 1) / sizeof (int);
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= (((memaddr + len) - addr) + sizeof (PTRACE_XFER_TYPE) - 1)
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/ sizeof (PTRACE_XFER_TYPE);
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/* Allocate buffer of that many longwords. */
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register int *buffer = (int *) alloca (count * sizeof (int));
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register PTRACE_XFER_TYPE *buffer
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= (PTRACE_XFER_TYPE *) alloca (count * sizeof (PTRACE_XFER_TYPE));
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if (write)
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{
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/* Fill start and end extra bytes of buffer with existing memory data. */
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if (addr != memaddr || len < (int)sizeof (int)) {
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if (addr != memaddr || len < (int) sizeof (PTRACE_XFER_TYPE)) {
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/* Need part of initial word -- fetch it. */
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buffer[0] = ptrace (PT_READ_I, inferior_pid, (PTRACE_ARG3_TYPE) addr,
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0);
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@ -387,17 +390,20 @@ child_xfer_memory (memaddr, myaddr, len, write, target)
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{
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buffer[count - 1]
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= ptrace (PT_READ_I, inferior_pid,
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(PTRACE_ARG3_TYPE) (addr + (count - 1) * sizeof (int)),
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((PTRACE_ARG3_TYPE)
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(addr + (count - 1) * sizeof (PTRACE_XFER_TYPE))),
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0);
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}
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/* Copy data to be written over corresponding part of buffer */
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memcpy ((char *) buffer + (memaddr & (sizeof (int) - 1)), myaddr, len);
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memcpy ((char *) buffer + (memaddr & (sizeof (PTRACE_XFER_TYPE) - 1)),
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myaddr,
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len);
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/* Write the entire buffer. */
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for (i = 0; i < count; i++, addr += sizeof (int))
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for (i = 0; i < count; i++, addr += sizeof (PTRACE_XFER_TYPE))
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{
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errno = 0;
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ptrace (PT_WRITE_D, inferior_pid, (PTRACE_ARG3_TYPE) addr,
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@ -417,7 +423,7 @@ child_xfer_memory (memaddr, myaddr, len, write, target)
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else
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{
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/* Read all the longwords */
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for (i = 0; i < count; i++, addr += sizeof (int))
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for (i = 0; i < count; i++, addr += sizeof (PTRACE_XFER_TYPE))
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{
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errno = 0;
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buffer[i] = ptrace (PT_READ_I, inferior_pid,
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@ -428,7 +434,9 @@ child_xfer_memory (memaddr, myaddr, len, write, target)
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}
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/* Copy appropriate bytes out of the buffer. */
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memcpy (myaddr, (char *) buffer + (memaddr & (sizeof (int) - 1)), len);
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memcpy (myaddr,
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(char *) buffer + (memaddr & (sizeof (PTRACE_XFER_TYPE) - 1)),
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len);
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}
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return len;
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}
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