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author | Peter Schauer <Peter.Schauer@mytum.de> | 2000-09-22 17:45:47 +0000 |
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committer | Peter Schauer <Peter.Schauer@mytum.de> | 2000-09-22 17:45:47 +0000 |
commit | d5d653533c52e5f5f417afedf6ff3c6e6311e5ac (patch) | |
tree | d0c7459f1a757906fb5810a8400b11ab629b24f9 /gdb/i386-linux-nat.c | |
parent | 151337e87933dfb13a87703c0c9c2cf2f1f6084e (diff) | |
download | gdb-d5d653533c52e5f5f417afedf6ff3c6e6311e5ac.zip gdb-d5d653533c52e5f5f417afedf6ff3c6e6311e5ac.tar.gz gdb-d5d653533c52e5f5f417afedf6ff3c6e6311e5ac.tar.bz2 |
* i386-linux-nat.c (OLD_CANNOT_FETCH_REGISTER,
OLD_CANNOT_FETCH_REGISTER): New definitions for accessible registers
when accessing the registers via the U area.
(fetch_register, store_register): Use them.
(cannot_fetch_register, cannot_store_register): New functions,
all registers should be accessible if we have GETREGS support.
* config/i386/nm-linux.h: Use cannot_fetch/store_register for
CANNOT_FETCH/STORE_REGISTER definitions.
Diffstat (limited to 'gdb/i386-linux-nat.c')
-rw-r--r-- | gdb/i386-linux-nat.c | 32 |
1 files changed, 24 insertions, 8 deletions
diff --git a/gdb/i386-linux-nat.c b/gdb/i386-linux-nat.c index 15e6a18..a1bc3d7 100644 --- a/gdb/i386-linux-nat.c +++ b/gdb/i386-linux-nat.c @@ -133,9 +133,7 @@ int have_ptrace_getfpxregs = #endif /* Registers we shouldn't try to fetch. */ -#if !defined (CANNOT_FETCH_REGISTER) -#define CANNOT_FETCH_REGISTER(regno) 0 -#endif +#define OLD_CANNOT_FETCH_REGISTER(regno) ((regno) >= NUM_GREGS) /* Fetch one register. */ @@ -150,7 +148,7 @@ fetch_register (int regno) char buf[MAX_REGISTER_RAW_SIZE]; int tid; - if (CANNOT_FETCH_REGISTER (regno)) + if (OLD_CANNOT_FETCH_REGISTER (regno)) { memset (buf, '\0', REGISTER_RAW_SIZE (regno)); /* Supply zeroes */ supply_register (regno, buf); @@ -201,9 +199,7 @@ old_fetch_inferior_registers (int regno) } /* Registers we shouldn't try to store. */ -#if !defined (CANNOT_STORE_REGISTER) -#define CANNOT_STORE_REGISTER(regno) 0 -#endif +#define OLD_CANNOT_STORE_REGISTER(regno) ((regno) >= NUM_GREGS) /* Store one register. */ @@ -217,7 +213,7 @@ store_register (int regno) unsigned int offset; /* Offset of registers within the u area. */ int tid; - if (CANNOT_STORE_REGISTER (regno)) + if (OLD_CANNOT_STORE_REGISTER (regno)) { return; } @@ -513,6 +509,26 @@ static void dummy_sse_values (void) {} /* Transferring arbitrary registers between GDB and inferior. */ +/* Check if register REGNO in the child process is accessible. + If we are accessing registers directly via the U area, only the + general-purpose registers are available. + All registers should be accessible if we have GETREGS support. */ + +int +cannot_fetch_register (int regno) +{ + if (! have_ptrace_getregs) + return OLD_CANNOT_FETCH_REGISTER (regno); + return 0; +} +int +cannot_store_register (int regno) +{ + if (! have_ptrace_getregs) + return OLD_CANNOT_STORE_REGISTER (regno); + return 0; +} + /* Fetch register REGNO from the child process. If REGNO is -1, do this for all registers (including the floating point and SSE registers). */ |