Attachment 312823 Details for Bug 254229 – Rawhide (=Fedora 9) patch, v3.

[patch] Rawhide (=Fedora 9) patch, v3.

gdb-6.8-bz254229-gcore-prpsinfo.patch (text/plain), 11.01 KB, created by Jan Kratochvil on 2008-07-28 21:31:44 UTC

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Creator: Jan Kratochvil

Created: 2008-07-28 21:31:44 UTC

Size: 11.01 KB

patch

obsolete

>--- ./bfd/elf-bfd.h	2008-02-15 09:27:18.000000000 +0100
>+++ ./bfd/elf-bfd.h	2008-07-28 04:21:19.000000000 +0200
>@@ -2125,7 +2125,7 @@ extern Elf_Internal_Phdr * _bfd_elf_find
> extern char *elfcore_write_note
>   (bfd *, char *, int *, const char *, int, const void *, int);
> extern char *elfcore_write_prpsinfo
>-  (bfd *, char *, int *, const char *, const char *);
>+  (bfd *, char *, int *, void *, const char *, const char *);
> extern char *elfcore_write_prstatus
>   (bfd *, char *, int *, long, int, const void *);
> extern char * elfcore_write_pstatus
>--- ./bfd/elf.c	2008-02-18 00:45:23.000000000 +0100
>+++ ./bfd/elf.c	2008-07-28 04:21:19.000000000 +0200
>@@ -8256,6 +8256,7 @@ char *
> elfcore_write_prpsinfo (bfd  *abfd,
> 			char *buf,
> 			int  *bufsiz,
>+			void *info,
> 			const char *fname,
> 			const char *psargs)
> {
>@@ -8282,9 +8283,14 @@ elfcore_write_prpsinfo (bfd  *abfd,
>       int note_type = NT_PRPSINFO;
> #endif
> 
>-      memset (&data, 0, sizeof (data));
>-      strncpy (data.pr_fname, fname, sizeof (data.pr_fname));
>-      strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs));
>+      if (info)
>+	memcpy (&data, info, sizeof (data));
>+      else
>+	{
>+	  memset (&data, 0, sizeof (data));
>+	  strncpy (data.pr_fname, fname, sizeof (data.pr_fname));
>+	  strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs));
>+	}
>       return elfcore_write_note (abfd, buf, bufsiz,
> 				 note_name, note_type, &data, sizeof (data));
>     }
>@@ -8299,9 +8305,14 @@ elfcore_write_prpsinfo (bfd  *abfd,
>       int note_type = NT_PRPSINFO;
> #endif
> 
>-      memset (&data, 0, sizeof (data));
>-      strncpy (data.pr_fname, fname, sizeof (data.pr_fname));
>-      strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs));
>+      if (info)
>+	memcpy (&data, info, sizeof (data));
>+      else
>+	{
>+	  memset (&data, 0, sizeof (data));
>+	  strncpy (data.pr_fname, fname, sizeof (data.pr_fname));
>+	  strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs));
>+	}
>       return elfcore_write_note (abfd, buf, bufsiz,
> 				 note_name, note_type, &data, sizeof (data));
>     }
>--- ./gdb/amd64-linux-nat.c	2008-07-28 12:59:15.000000000 +0200
>+++ ./gdb/amd64-linux-nat.c	2008-07-28 04:21:19.000000000 +0200
>@@ -139,6 +139,7 @@ static int amd64_linux_gregset32_reg_off
> 
> static char *
> amd64_linux_elfcore_write_prpsinfo (bfd *abfd, char *buf, int *bufsiz,
>+				    void *info,
> 				    const char *fname, const char *psargs)
> {
>   if (gdbarch_ptr_bit(current_gdbarch) == 32)
>@@ -148,14 +149,19 @@ amd64_linux_elfcore_write_prpsinfo (bfd 
>       struct elf_prpsinfo32 data;
>       note_type = NT_PRPSINFO;
> 
>-      memset (&data, 0, sizeof (data));
>-      strncpy (data.pr_fname, fname, sizeof (data.pr_fname));
>-      strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs));
>+      if (info)
>+	memcpy (&data, info, sizeof (data));
>+      else
>+	{
>+	  memset (&data, 0, sizeof (data));
>+	  strncpy (data.pr_fname, fname, sizeof (data.pr_fname));
>+	  strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs));
>+	}
>       return elfcore_write_note (abfd, buf, bufsiz,
> 				 note_name, note_type, &data, sizeof (data));
>     }
>   else
>-    return elfcore_write_prpsinfo (abfd, buf, bufsiz, fname, psargs);
>+    return elfcore_write_prpsinfo (abfd, buf, bufsiz, info, fname, psargs);
> }
> 
> static void
>--- ./gdb/fbsd-nat.c	2008-01-01 23:53:09.000000000 +0100
>+++ ./gdb/fbsd-nat.c	2008-07-28 04:21:19.000000000 +0200
>@@ -184,6 +184,7 @@ fbsd_make_corefile_notes (bfd *obfd, int
> 	psargs = reconcat (psargs, psargs, " ", get_inferior_args (), NULL);
> 
>       note_data = elfcore_write_prpsinfo (obfd, note_data, note_size,
>+				          NULL,
> 					  fname, psargs);
>     }
> 
>--- ./gdb/linux-nat.c	2008-07-28 12:59:15.000000000 +0200
>+++ ./gdb/linux-nat.c	2008-07-28 13:09:49.000000000 +0200
>@@ -47,6 +47,7 @@
> #include "gdbthread.h"		/* for struct thread_info etc. */
> #include "gdb_stat.h"		/* for struct stat */
> #include <fcntl.h>		/* for O_RDONLY */
>+#include "gdb_procfs32.h"	/* for struct elf_prpsinfo32 */
> 
> #ifndef O_LARGEFILE
> #define O_LARGEFILE 0
>@@ -117,7 +118,7 @@ static LONGEST (*super_xfer_partial) (st
> /* This functions make elfcore note sections.
>    They may get overriden by code adjusting data for multi-target builds.  */
> char *(*linux_elfcore_write_prpsinfo)
>-  (bfd *, char *, int *, const char *, const char *) = elfcore_write_prpsinfo;
>+  (bfd *, char *, int *, void *, const char *, const char *) = elfcore_write_prpsinfo;
> char *(*linux_elfcore_write_prstatus)
>   (bfd *, char *, int *, long, int, const void *) = elfcore_write_prstatus;
> static char *
>@@ -2980,6 +2981,157 @@ linux_nat_do_registers (bfd *obfd, ptid_
> 					note_data, note_size);
> }
> 
>+/* Should be always true for Linux */
>+#define HAVE_PRPSINFO_T 1
>+
>+#if defined (HAVE_PRPSINFO_T)
>+
>+/* Fills struct elf_prpsinfo{32,64} as much as possible, imitate Linux kernel
>+   binfmt_elf.c.  Unknown values are filled with zeroes.  The structure is
>+   malloced.  */
>+
>+static void*
>+fill_prpsinfo (void)
>+{
>+  struct stat sb;
>+  char filename[sizeof ("/proc//cmdline") + sizeof (int) * 3 + 2];
>+  char buf[1024];
>+  char proc_state[5];
>+  char proc_cmdline[sizeof (((struct elf_prpsinfo*)0)->pr_psargs) + 1];
>+  unsigned flags;
>+  long proc_nice;
>+  unsigned proc_ppid;
>+  unsigned proc_pgid;
>+  unsigned proc_sid;
>+  pid_t pid;
>+  int fd, n;
>+  char *cp, *proc_comm, *state_s;
>+  /* String comes from Linux kernel binfmt_elf.c FILL_PSINFO but it is already
>+     obsolete there to <linux/sched.h> TASK_* constants.  */
>+  const char state_string[] = "RSDTZW";
>+  int state_num;
>+
>+  /* Get /proc/$PID/stat.  */
>+  pid = ptid_get_pid (inferior_ptid);
>+  sprintf (filename, "/proc/%u/stat", (unsigned)pid);
>+  fd = open (filename, O_RDONLY);
>+  if (fd < 0)
>+    return NULL;
>+  fstat (fd, &sb); /* ignore (im)possible error */
>+  n = read (fd, buf, sizeof (buf) - 1);
>+  close (fd);
>+  if (n < 0)
>+    return NULL;
>+  buf[n] = 0;
>+
>+  cp = strrchr (buf, ')'); /* split into "PID (COMM" and "<rest>" */
>+  if (!cp)
>+    return NULL;
>+  *cp = 0;
>+
>+  /* Grab COMM.  */
>+  proc_comm = strchr (buf, '(');
>+  if (!proc_comm)
>+    return NULL;
>+  proc_comm++;
>+
>+  /* Read /proc/$PID/cmdline.  */
>+  proc_cmdline[0] = 0;
>+  strcpy (strrchr (filename, '/'), "/cmdline");
>+  fd = open (filename, O_RDONLY);
>+  if (fd >= 0)
>+    {
>+      int n = read (fd, proc_cmdline, sizeof (proc_cmdline) - 1);
>+      if (n < 0)
>+	n = 0;
>+      proc_cmdline[n] = 0;
>+      while (n--) /* replace NULs with spaces */
>+	if (proc_cmdline[n] == 0)
>+	  proc_cmdline[n] = ' ';
>+      close (fd);
>+    }
>+
>+  /* Parse /proc/$PID/stat.  */
>+  n = sscanf (cp + 2, /* skip ") " */
>+	      "%4s %u "               /* state, ppid */
>+	      "%u %u %*s %*s "        /* pgid, sid, tty, tpgid */
>+	      "%u %*s %*s %*s "       /* flags, min_flt, cmin_flt, maj_flt */
>+	      "%*s "                  /* cmaj_flt */
>+	      "%*s %*s "              /* utime, stime */
>+	      "%*s %*s %*s "          /* cutime, cstime, priority */
>+	      "%ld "                  /* nice */
>+	      /*"%*s %*s "               timeout, it_real_value */
>+	      /*"%lu "                   start_time */
>+	      /*"%lu "                   vsize */
>+	      /*"%lu "                   rss */
>+	      /*"%lu %lu %lu "           rss_rlim, start_code, end_code */
>+	      /*"%lu %lu %lu "           start_stack, kstk_esp, kstk_eip */
>+	      /*"%u %u %u %u "           signal, blocked, sigignore, sigcatch */
>+	      /*"%lu %lu %lu"            wchan, nswap, cnswap */
>+	      , proc_state, &proc_ppid,
>+	      &proc_pgid, &proc_sid,
>+	      &flags,
>+	      &proc_nice);
>+  if (n != 6)
>+    return NULL;
>+
>+  state_s = strchr (state_string, proc_state[0]);
>+  if (state_s != NULL)
>+    state_num = state_s - state_string;
>+  else
>+    {
>+      /* 0 means Running, some more unusal state would be better.  */
>+      state_num = 0;
>+    }
>+
>+#if ULONG_MAX > 0xffffffffU
>+  /* We skip this code on 32-bit gdb.  */
>+  if (gdbarch_ptr_bit (current_gdbarch) == 64)
>+    {
>+      struct elf_prpsinfo *info = xzalloc (sizeof (*info));
>+
>+      info->pr_state = state_num;
>+      info->pr_sname = proc_state[0];
>+      info->pr_zomb = (proc_state[0] == 'Z');
>+      info->pr_nice = proc_nice;
>+      info->pr_flag = flags;
>+      info->pr_uid = sb.st_uid;
>+      info->pr_gid = sb.st_gid;
>+      info->pr_pid = pid;
>+      info->pr_ppid = proc_ppid;
>+      info->pr_pgrp = proc_pgid;
>+      info->pr_sid = proc_sid;
>+      strncpy (info->pr_fname, proc_comm, sizeof (info->pr_fname));
>+      strncpy (info->pr_psargs, proc_cmdline, sizeof (info->pr_psargs));
>+
>+      return info;
>+    }
>+#endif
>+  if (gdbarch_ptr_bit (current_gdbarch) == 32)
>+    {
>+      struct elf_prpsinfo32 *info = xzalloc (sizeof (*info));
>+
>+      info->pr_state = state_num;
>+      info->pr_sname = proc_state[0];
>+      info->pr_zomb = (proc_state[0] == 'Z');
>+      info->pr_nice = proc_nice;
>+      info->pr_flag = flags;
>+      info->pr_uid = sb.st_uid;
>+      info->pr_gid = sb.st_gid;
>+      info->pr_pid = pid;
>+      info->pr_ppid = proc_ppid;
>+      info->pr_pgrp = proc_pgid;
>+      info->pr_sid = proc_sid;
>+      strncpy (info->pr_fname, proc_comm, sizeof (info->pr_fname));
>+      strncpy (info->pr_psargs, proc_cmdline, sizeof (info->pr_psargs));
>+
>+      return info;
>+    }
>+
>+  return NULL;
>+}
>+#endif
>+
> /* Fills the "to_make_corefile_note" target vector.  Builds the note
>    section for a corefile, and returns it in a malloc buffer.  */
> 
>@@ -2999,8 +3151,14 @@ linux_nat_make_corefile_notes (bfd *obfd
> 
>   if (get_exec_file (0))
>     {
>+#if defined (HAVE_PRPSINFO_T)
>+      void *data = fill_prpsinfo ();
>+#define DATAPTR data
>+#else
>+#define DATAPTR NULL
>       strncpy (fname, strrchr (get_exec_file (0), '/') + 1, sizeof (fname));
>       strncpy (psargs, get_exec_file (0), sizeof (psargs));
>+#endif
>       if (get_inferior_args ())
> 	{
> 	  char *string_end;
>@@ -3016,9 +3174,13 @@ linux_nat_make_corefile_notes (bfd *obfd
> 		       psargs_end - string_end);
> 	    }
> 	}
>-      note_data = (char *) linux_elfcore_write_prpsinfo (obfd, note_data,
>-							 note_size, fname,
>+      note_data = (char *) linux_elfcore_write_prpsinfo (obfd, note_data, note_size,
>+							 DATAPTR,
>+							 fname,
> 							 psargs);
>+#if defined (HAVE_PRPSINFO_T)
>+      xfree (DATAPTR);
>+#endif
>     }
> 
>   /* Dump information for threads.  */
>--- ./gdb/linux-nat.h	2008-07-28 12:59:15.000000000 +0200
>+++ ./gdb/linux-nat.h	2008-07-28 04:21:19.000000000 +0200
>@@ -133,7 +133,7 @@ struct siginfo *linux_nat_get_siginfo (p
> /* These functions make elfcore note sections.
>    They may get overriden by code adjusting data for multi-target builds.  */
> extern char *(*linux_elfcore_write_prpsinfo)
>-  (bfd *, char *, int *, const char *, const char *);
>+  (bfd *, char *, int *, void *, const char *, const char *);
> extern char *(*linux_elfcore_write_prstatus)
>   (bfd *, char *, int *, long, int, const void *);
> extern char *(*linux_elfcore_write_prfpreg)
>--- ./gdb/procfs.c	2008-07-28 12:59:14.000000000 +0200
>+++ ./gdb/procfs.c	2008-07-28 04:21:19.000000000 +0200
>@@ -6118,6 +6118,7 @@ procfs_make_note_section (bfd *obfd, int
>   note_data = (char *) elfcore_write_prpsinfo (obfd,
> 					       note_data,
> 					       note_size,
>+					       NULL,
> 					       fname,
> 					       psargs);
>

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Attachments on bug 254229: 312485 | 312566 | 312652 | 312653 | 312823 | 312860 | 312861