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* regcache.c (read_register_bytes): When REGISTER_NAME indicates

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that a register should be ignored, supply a value for the register
from the raw registers[] buffer.
This commit is contained in:
Andrew Cagney
2001-08-24 05:11:07 +00:00
parent 12a498f33a
commit 275f450c27
2 changed files with 18 additions and 5 deletions
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17
gdb/regcache.c
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@@ -230,9 +230,6 @@ read_register_bytes (int in_start, char *in_buf, int in_len)
int end;
int byte;
if (REGISTER_NAME (regnum) == NULL || *REGISTER_NAME (regnum) == '\0')
continue;
reg_start = REGISTER_BYTE (regnum);
reg_len = REGISTER_RAW_SIZE (regnum);
reg_end = reg_start + reg_len;
@@ -241,8 +238,18 @@ read_register_bytes (int in_start, char *in_buf, int in_len)
/* The range the user wants to read doesn't overlap with regnum. */
continue;
/* Force the cache to fetch the entire register. */
read_register_gen (regnum, reg_buf);
if (REGISTER_NAME (regnum) != NULL && *REGISTER_NAME (regnum) != '\0')
/* Force the cache to fetch the entire register. */
read_register_gen (regnum, reg_buf);
else
/* Legacy note: even though this register is ``invalid'' we
still need to return something. It would appear that some
code relies on apparent gaps in the register array also
being returned. */
/* FIXME: cagney/2001-08-18: This is just silly. It defeats
the entire register read/write flow of control. Must
resist temptation to return 0xdeadbeef. */
memcpy (reg_buf, registers + reg_start, reg_len);
/* Legacy note: This function, for some reason, allows a NULL
input buffer. If the buffer is NULL, the registers are still