PATCH: Support x32 gcore

["H.J. Lu" <hongjiu dot lu at intel dot com>]

Hi,

I checked in this patch to support x32 gcore.  I also deleted the
unused stuff.


H.J.
---
diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 41b22cc..1ce1ac2 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,5 +1,27 @@
 2011-06-16  H.J. Lu  <hongjiu.lu@intel.com>
 
+	* elf64-x86-64.c: Include <stdarg.h> and CORE_HEADER if
+	CORE_HEADER is defined.
+	(elf_x86_64_write_core_note): New.
+	(elf_backend_write_core_note): Likewise.
+
+	* hosts/x86-64linux.h (uint64_t): New.
+	(user_regsx32_struct): Likewise.
+	(elf_gregx32_t): Likewise.
+	(ELF_NGREGX32): Likewise.
+	(elf_gregsetx32_t): Likewise.
+	(elf_prstatusx32): Likewise.
+	(prstatusx32_t): Likewise.
+	(user_fpregs32_struct): Removed.
+	(user_fpxregs32_struct): Likewise.
+	(user32): Likewise.
+	(elf_fpregset32_t): Likewise.
+	(elf_fpxregset32_t): Likewise.
+	(prgregset32_t): Likewise.
+	(prfpregset32_t): Likewise.
+
+2011-06-16  H.J. Lu  <hongjiu.lu@intel.com>
+
 	* elf64-x86-64.c (elf_x86_64_grok_prstatus): Support x32.
 	(elf_x86_64_grok_psinfo): Likewise.
 
diff --git a/bfd/elf64-x86-64.c b/bfd/elf64-x86-64.c
index de65197..23b5559 100644
--- a/bfd/elf64-x86-64.c
+++ b/bfd/elf64-x86-64.c
@@ -32,6 +32,11 @@
 
 #include "elf/x86-64.h"
 
+#ifdef CORE_HEADER
+#include <stdarg.h>
+#include CORE_HEADER
+#endif
+
 /* In case we're on a 32-bit machine, construct a 64-bit "-1" value.  */
 #define MINUS_ONE (~ (bfd_vma) 0)
 
@@ -385,6 +390,99 @@ elf_x86_64_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
 
   return TRUE;
 }
+
+#ifdef CORE_HEADER
+static char *
+elf_x86_64_write_core_note (bfd *abfd, char *buf, int *bufsiz,
+			    int note_type, ...)
+{
+  const struct elf_backend_data *bed = get_elf_backend_data (abfd);
+  const void *p;
+  int size;
+  va_list ap;
+  const char *fname, *psargs;
+  long pid;
+  int cursig;
+  const void *gregs;
+
+  switch (note_type)
+    {
+    default:
+      return NULL;
+
+    case NT_PRPSINFO:
+      va_start (ap, note_type);
+      fname = va_arg (ap, const char *);
+      psargs = va_arg (ap, const char *);
+      va_end (ap);
+
+      if (bed->s->elfclass == ELFCLASS32)
+	{
+	  prpsinfo32_t data;
+	  memset (&data, 0, sizeof (data));
+	  strncpy (data.pr_fname, fname, sizeof (data.pr_fname));
+	  strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs));
+	  p = (const void *) &data;
+	  size = sizeof (data);
+	}
+      else
+	{
+	  prpsinfo_t data;
+	  memset (&data, 0, sizeof (data));
+	  strncpy (data.pr_fname, fname, sizeof (data.pr_fname));
+	  strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs));
+	  p = (const void *) &data;
+	  size = sizeof (data);
+	}
+      break;
+
+    case NT_PRSTATUS:
+      va_start (ap, note_type);
+      pid = va_arg (ap, long);
+      cursig = va_arg (ap, int);
+      gregs = va_arg (ap, const void *);
+      va_end (ap);
+
+      if (bed->s->elfclass == ELFCLASS32)
+	{
+	  if (bed->elf_machine_code == EM_X86_64)
+	    {
+	      prstatusx32_t prstat;
+	      memset (&prstat, 0, sizeof (prstat));
+	      prstat.pr_pid = pid;
+	      prstat.pr_cursig = cursig;
+	      memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg));
+	      p = (const void *) &prstat;
+	      size = sizeof (prstat);
+	    }
+	  else
+	    {
+	      prstatus32_t prstat;
+	      memset (&prstat, 0, sizeof (prstat));
+	      prstat.pr_pid = pid;
+	      prstat.pr_cursig = cursig;
+	      memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg));
+	      p = (const void *) &prstat;
+	      size = sizeof (prstat);
+	    }
+	}
+      else
+	{
+	  prstatus_t prstat;
+	  memset (&prstat, 0, sizeof (prstat));
+	  prstat.pr_pid = pid;
+	  prstat.pr_cursig = cursig;
+	  memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg));
+	  p = (const void *) &prstat;
+	  size = sizeof (prstat);
+	}
+      break;
+    }
+
+  return elfcore_write_note (abfd, buf, bufsiz, "CORE", note_type, p,
+			     size);
+}
+#endif
 
 /* Functions for the x86-64 ELF linker.	 */
 
@@ -4711,6 +4809,9 @@ static const struct bfd_elf_special_section
 #define elf_backend_gc_sweep_hook	    elf_x86_64_gc_sweep_hook
 #define elf_backend_grok_prstatus	    elf_x86_64_grok_prstatus
 #define elf_backend_grok_psinfo		    elf_x86_64_grok_psinfo
+#ifdef CORE_HEADER
+#define elf_backend_write_core_note	    elf_x86_64_write_core_note
+#endif
 #define elf_backend_reloc_type_class	    elf_x86_64_reloc_type_class
 #define elf_backend_relocate_section	    elf_x86_64_relocate_section
 #define elf_backend_size_dynamic_sections   elf_x86_64_size_dynamic_sections
diff --git a/bfd/hosts/x86-64linux.h b/bfd/hosts/x86-64linux.h
index 093af61..4ffc3f2 100644
--- a/bfd/hosts/x86-64linux.h
+++ b/bfd/hosts/x86-64linux.h
@@ -37,6 +37,7 @@
 #include <stdint.h>
 #else
 typedef unsigned int uint32_t;
+typedef unsigned long long int uint64_t;
 #endif
 
 #undef HAVE_PRPSINFO32_T
@@ -49,35 +50,6 @@ typedef unsigned int uint32_t;
 
 /* These are the 32-bit x86 structures.  */
 
-struct user_fpregs32_struct
-{
-  int32_t cwd;
-  int32_t swd;
-  int32_t twd;
-  int32_t fip;
-  int32_t fcs;
-  int32_t foo;
-  int32_t fos;
-  int32_t st_space [20];
-};
-
-struct user_fpxregs32_struct
-{
-  unsigned short int cwd;
-  unsigned short int swd;
-  unsigned short int twd;
-  unsigned short int fop;
-  int32_t fip;
-  int32_t fcs;
-  int32_t foo;
-  int32_t fos;
-  int32_t mxcsr;
-  int32_t reserved;
-  int32_t st_space[32];   /* 8*16 bytes for each FP-reg = 128 bytes */
-  int32_t xmm_space[32];  /* 8*16 bytes for each XMM-reg = 128 bytes */
-  int32_t padding[56];
-};
-
 struct user_regs32_struct
 {
   int32_t ebx;
@@ -99,27 +71,40 @@ struct user_regs32_struct
   int32_t xss;
 };
 
-struct user32
+struct user_regsx32_struct
 {
-  struct user_regs32_struct	regs;
-  int				u_fpvalid;
-  struct user_fpregs32_struct	i387;
-  uint32_t			u_tsize;
-  uint32_t			u_dsize;
-  uint32_t			u_ssize;
-  uint32_t			start_code;
-  uint32_t			start_stack;
-  int32_t			signal;
-  int				reserved;
-  struct user_regs32_struct*	u_ar0;
-  struct user_fpregs32_struct*	u_fpstate;
-  uint32_t			magic;
-  char				u_comm [32];
-  int				u_debugreg [8];
+  uint64_t r15;
+  uint64_t r14;
+  uint64_t r13;
+  uint64_t r12;
+  uint64_t rbp;
+  uint64_t rbx;
+  uint64_t r11;
+  uint64_t r10;
+  uint64_t r9;
+  uint64_t r8;
+  uint64_t rax;
+  uint64_t rcx;
+  uint64_t rdx;
+  uint64_t rsi;
+  uint64_t rdi;
+  uint64_t orig_rax;
+  uint64_t rip;
+  uint64_t cs;
+  uint64_t eflags;
+  uint64_t rsp;
+  uint64_t ss;
+  uint64_t fs_base;
+  uint64_t gs_base;
+  uint64_t ds;
+  uint64_t es;
+  uint64_t fs;
+  uint64_t gs;
 };
 
 /* Type for a general-purpose register.  */
-typedef unsigned int elf_greg32_t;
+typedef uint32_t elf_greg32_t;
+typedef uint64_t elf_gregx32_t;
 
 /* And the whole bunch of them.  We could have used `struct
    user_regs_struct' directly in the typedef, but tradition says that
@@ -127,15 +112,8 @@ typedef unsigned int elf_greg32_t;
    semantics, so leave it that way.  */
 #define ELF_NGREG32 (sizeof (struct user_regs32_struct) / sizeof(elf_greg32_t))
 typedef elf_greg32_t elf_gregset32_t[ELF_NGREG32];
-
-/* Register set for the floating-point registers.  */
-typedef struct user_fpregs32_struct elf_fpregset32_t;
-
-/* Register set for the extended floating-point registers.  Includes
-   the Pentium III SSE registers in addition to the classic
-   floating-point stuff.  */
-typedef struct user_fpxregs32_struct elf_fpxregset32_t;
-
+#define ELF_NGREGX32 (sizeof (struct user_regsx32_struct) / sizeof(elf_gregx32_t))
+typedef elf_gregx32_t elf_gregsetx32_t[ELF_NGREGX32];
 
 /* Definitions to generate Intel SVR4-like core files.  These mostly
    have the same names as the SVR4 types with "elf_" tacked on the
@@ -168,6 +146,23 @@ struct elf_prstatus32
     int pr_fpvalid;			/* True if math copro being used.  */
   };
 
+struct elf_prstatusx32
+  {
+    struct elf_siginfo pr_info;		/* Info associated with signal.  */
+    short int pr_cursig;		/* Current signal.  */
+    unsigned int pr_sigpend;		/* Set of pending signals.  */
+    unsigned int pr_sighold;		/* Set of held signals.  */
+    pid_t pr_pid;
+    pid_t pr_ppid;
+    pid_t pr_pgrp;
+    pid_t pr_sid;
+    struct prstatus32_timeval pr_utime;		/* User time.  */
+    struct prstatus32_timeval pr_stime;		/* System time.  */
+    struct prstatus32_timeval pr_cutime;	/* Cumulative user time.  */
+    struct prstatus32_timeval pr_cstime;	/* Cumulative system time.  */
+    elf_gregsetx32_t pr_reg;		/* GP registers.  */
+    int pr_fpvalid;			/* True if math copro being used.  */
+  };
 
 struct elf_prpsinfo32
   {
@@ -189,10 +184,7 @@ struct elf_prpsinfo32
    Solaris <proc_service.h> interfaces that should be implemented by
    users of libthread_db.  */
 
-/* Register sets.  Linux has different names.  */
-typedef elf_gregset_t prgregset32_t;
-typedef elf_fpregset_t prfpregset32_t;
-
 /* Process status and info.  In the end we do provide typedefs for them.  */
 typedef struct elf_prstatus32 prstatus32_t;
+typedef struct elf_prstatusx32 prstatusx32_t;
 typedef struct elf_prpsinfo32 prpsinfo32_t;