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authorRoland McGrath <roland@gnu.org>2003-09-09 07:01:01 +0000
committerRoland McGrath <roland@gnu.org>2003-09-09 07:01:01 +0000
commit7f08f55a9f88d23fcfbf1fed00f4d5a094e5fffc (patch)
tree5796d7f5d713c3c264a70a6039b0ba52e262b06f /nptl_db/fetch-value.c
parent416be7f049391ce421d9b12a2c3b81bb3cad9f58 (diff)
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* sysdeps/unix/sysv/linux/speed.c
(cfsetospeed): Only set c_ospeed under [_HAVE_STRUCT_TERMIOS_C_OSPEED]. (cfsetispeed): Only set c_ispeed under [_HAVE_STRUCT_TERMIOS_C_ISPEED]. * sysdeps/unix/sysv/linux/bits/termios.h (_HAVE_STRUCT_TERMIOS_C_ISPEED, _HAVE_STRUCT_TERMIOS_C_OSPEED): Define. * sysdeps/unix/sysv/linux/alpha/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/termios.h: Likewise.
Diffstat (limited to 'nptl_db/fetch-value.c')
-rw-r--r--nptl_db/fetch-value.c283
1 files changed, 283 insertions, 0 deletions
diff --git a/nptl_db/fetch-value.c b/nptl_db/fetch-value.c
new file mode 100644
index 0000000000..9d40b61691
--- /dev/null
+++ b/nptl_db/fetch-value.c
@@ -0,0 +1,283 @@
+/* Helper routines for libthread_db.
+ Copyright (C) 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include "thread_dbP.h"
+#include <byteswap.h>
+#include <assert.h>
+
+td_err_e
+_td_check_sizeof (td_thragent_t *ta, uint32_t *sizep, int sizep_name)
+{
+ if (*sizep == 0)
+ {
+ psaddr_t descptr;
+ ps_err_e err = td_lookup (ta->ph, sizep_name, &descptr);
+ if (err == PS_NOSYM)
+ return TD_NOCAPAB;
+ if (err == PS_OK)
+ err = ps_pdread (ta->ph, descptr, sizep, sizeof *sizep);
+ if (err != PS_OK)
+ return TD_ERR;
+ if (*sizep & 0xff000000U)
+ *sizep = bswap_32 (*sizep);
+ }
+ return TD_OK;
+}
+
+td_err_e
+_td_locate_field (td_thragent_t *ta,
+ db_desc_t desc, int descriptor_name,
+ psaddr_t idx, psaddr_t *address)
+{
+ uint32_t elemsize;
+
+ if (DB_DESC_SIZE (desc) == 0)
+ {
+ /* Read the information about this field from the inferior. */
+ psaddr_t descptr;
+ ps_err_e err = td_lookup (ta->ph, descriptor_name, &descptr);
+ if (err == PS_NOSYM)
+ return TD_NOCAPAB;
+ if (err == PS_OK)
+ err = ps_pdread (ta->ph, descptr, desc, DB_SIZEOF_DESC);
+ if (err != PS_OK)
+ return TD_ERR;
+ if (DB_DESC_SIZE (desc) == 0)
+ return TD_DBERR;
+ if (DB_DESC_SIZE (desc) & 0xff000000U)
+ {
+ /* Byte-swap these words, though we leave the size word
+ in native order as the handy way to distinguish. */
+ DB_DESC_OFFSET (desc) = bswap_32 (DB_DESC_OFFSET (desc));
+ DB_DESC_NELEM (desc) = bswap_32 (DB_DESC_NELEM (desc));
+ }
+ }
+
+ if (idx != 0 && idx - (psaddr_t) 0 > DB_DESC_NELEM (desc))
+ /* This is an internal indicator to callers with nonzero IDX
+ that the IDX value is too big. */
+ return TD_NOAPLIC;
+
+ elemsize = DB_DESC_SIZE (desc);
+ if (elemsize & 0xff000000U)
+ elemsize = bswap_32 (elemsize);
+
+ *address += DB_DESC_OFFSET (desc) + (elemsize / 8 * (idx - (psaddr_t) 0));
+ return TD_OK;
+}
+
+td_err_e
+_td_fetch_value (td_thragent_t *ta,
+ db_desc_t desc, int descriptor_name,
+ psaddr_t idx, psaddr_t address,
+ psaddr_t *result)
+{
+ ps_err_e err;
+ td_err_e terr = _td_locate_field (ta, desc, descriptor_name, idx, &address);
+ if (terr != TD_OK)
+ return terr;
+
+ if (DB_DESC_SIZE (desc) == 8 || DB_DESC_SIZE (desc) == bswap_32 (8))
+ {
+ uint8_t value;
+ err = ps_pdread (ta->ph, address, &value, sizeof value);
+ *result = (psaddr_t) 0 + value;
+ }
+ else if (DB_DESC_SIZE (desc) == 32)
+ {
+ uint32_t value;
+ err = ps_pdread (ta->ph, address, &value, sizeof value);
+ *result = (psaddr_t) 0 + value;
+ }
+ else if (DB_DESC_SIZE (desc) == 64)
+ {
+ uint64_t value;
+ if (sizeof (psaddr_t) < 8)
+ return TD_NOCAPAB;
+ err = ps_pdread (ta->ph, address, &value, sizeof value);
+ *result = (psaddr_t) 0 + value;
+ }
+ else if (DB_DESC_SIZE (desc) == bswap_32 (32))
+ {
+ uint32_t value;
+ err = ps_pdread (ta->ph, address, &value, sizeof value);
+ value = bswap_32 (value);
+ *result = (psaddr_t) 0 + value;
+ }
+ else if (DB_DESC_SIZE (desc) == bswap_32 (64))
+ {
+ uint64_t value;
+ if (sizeof (psaddr_t) < 8)
+ return TD_NOCAPAB;
+ err = ps_pdread (ta->ph, address, &value, sizeof value);
+ value = bswap_64 (value);
+ *result = (psaddr_t) 0 + value;
+ }
+ else
+ return TD_DBERR;
+
+ return err == PS_OK ? TD_OK : TD_ERR;
+}
+
+
+td_err_e
+_td_store_value (td_thragent_t *ta,
+ uint32_t desc[2], int descriptor_name, psaddr_t idx,
+ psaddr_t address, psaddr_t widened_value)
+{
+ ps_err_e err;
+ td_err_e terr = _td_locate_field (ta, desc, descriptor_name, idx, &address);
+ if (terr != TD_OK)
+ return terr;
+
+ if (DB_DESC_SIZE (desc) == 8 || DB_DESC_SIZE (desc) == bswap_32 (8))
+ {
+ uint8_t value = widened_value - (psaddr_t) 0;
+ err = ps_pdwrite (ta->ph, address, &value, sizeof value);
+ }
+ else if (DB_DESC_SIZE (desc) == 32)
+ {
+ uint32_t value = widened_value - (psaddr_t) 0;
+ err = ps_pdwrite (ta->ph, address, &value, sizeof value);
+ }
+ else if (DB_DESC_SIZE (desc) == 64)
+ {
+ uint64_t value = widened_value - (psaddr_t) 0;
+ if (sizeof (psaddr_t) < 8)
+ return TD_NOCAPAB;
+ err = ps_pdwrite (ta->ph, address, &value, sizeof value);
+ }
+ else if (DB_DESC_SIZE (desc) == bswap_32 (32))
+ {
+ uint32_t value = widened_value - (psaddr_t) 0;
+ value = bswap_32 (value);
+ err = ps_pdwrite (ta->ph, address, &value, sizeof value);
+ }
+ else if (DB_DESC_SIZE (desc) == bswap_32 (64))
+ {
+ uint64_t value = widened_value - (psaddr_t) 0;
+ if (sizeof (psaddr_t) < 8)
+ return TD_NOCAPAB;
+ value = bswap_64 (value);
+ err = ps_pdwrite (ta->ph, address, &value, sizeof value);
+ }
+ else
+ return TD_DBERR;
+
+ return err == PS_OK ? TD_OK : TD_ERR;
+}
+
+td_err_e
+_td_fetch_value_local (td_thragent_t *ta,
+ db_desc_t desc, int descriptor_name, psaddr_t idx,
+ void *address,
+ psaddr_t *result)
+{
+ td_err_e terr = _td_locate_field (ta, desc, descriptor_name, idx, &address);
+ if (terr != TD_OK)
+ return terr;
+
+ if (DB_DESC_SIZE (desc) == 8 || DB_DESC_SIZE (desc) == bswap_32 (8))
+ {
+ uint8_t value;
+ memcpy (&value, address, sizeof value);
+ *result = (psaddr_t) 0 + value;
+ }
+ else if (DB_DESC_SIZE (desc) == 32)
+ {
+ uint32_t value;
+ memcpy (&value, address, sizeof value);
+ *result = (psaddr_t) 0 + value;
+ }
+ else if (DB_DESC_SIZE (desc) == 64)
+ {
+ uint64_t value;
+ if (sizeof (psaddr_t) < 8)
+ return TD_NOCAPAB;
+ memcpy (&value, address, sizeof value);
+ *result = (psaddr_t) 0 + value;
+ }
+ else if (DB_DESC_SIZE (desc) == bswap_32 (32))
+ {
+ uint32_t value;
+ memcpy (&value, address, sizeof value);
+ value = bswap_32 (value);
+ *result = (psaddr_t) 0 + value;
+ }
+ else if (DB_DESC_SIZE (desc) == bswap_32 (64))
+ {
+ uint64_t value;
+ if (sizeof (psaddr_t) < 8)
+ return TD_NOCAPAB;
+ memcpy (&value, address, sizeof value);
+ value = bswap_64 (value);
+ *result = (psaddr_t) 0 + value;
+ }
+ else
+ return TD_DBERR;
+
+ return TD_OK;
+}
+
+
+td_err_e
+_td_store_value_local (td_thragent_t *ta,
+ uint32_t desc[2], int descriptor_name, psaddr_t idx,
+ void *address, psaddr_t widened_value)
+{
+ td_err_e terr = _td_locate_field (ta, desc, descriptor_name, idx, &address);
+ if (terr != TD_OK)
+ return terr;
+
+ if (DB_DESC_SIZE (desc) == 8 || DB_DESC_SIZE (desc) == bswap_32 (8))
+ {
+ uint8_t value = widened_value - (psaddr_t) 0;
+ memcpy (address, &value, sizeof value);
+ }
+ else if (DB_DESC_SIZE (desc) == 32)
+ {
+ uint32_t value = widened_value - (psaddr_t) 0;
+ memcpy (address, &value, sizeof value);
+ }
+ else if (DB_DESC_SIZE (desc) == 64)
+ {
+ uint64_t value = widened_value - (psaddr_t) 0;
+ if (sizeof (psaddr_t) < 8)
+ return TD_NOCAPAB;
+ memcpy (address, &value, sizeof value);
+ }
+ else if (DB_DESC_SIZE (desc) == bswap_32 (32))
+ {
+ uint32_t value = widened_value - (psaddr_t) 0;
+ value = bswap_32 (value);
+ memcpy (address, &value, sizeof value);
+ }
+ else if (DB_DESC_SIZE (desc) == bswap_32 (64))
+ {
+ uint64_t value = widened_value - (psaddr_t) 0;
+ if (sizeof (psaddr_t) < 8)
+ return TD_NOCAPAB;
+ value = bswap_64 (value);
+ memcpy (address, &value, sizeof value);
+ }
+ else
+ return TD_DBERR;
+
+ return TD_OK;
+}