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| author | Luis Machado <luisgpm@br.ibm.com> | 2013-05-16 10:31:49 +0000 |
|---|---|---|
| committer | Luis Machado <luisgpm@br.ibm.com> | 2013-05-16 10:31:49 +0000 |
| commit | db0dfaa0e65e6c455ad870dc4fb42192b1386c0a (patch) | |
| tree | c7cd66ffcda000b97f669f5c995718d1ffcd1cd6 /gdb/gdbserver/linux-low.c | |
| parent | 177aadc492aadd43b3d540ad098cbacc22cf395e (diff) | |
| download | gdb-db0dfaa0e65e6c455ad870dc4fb42192b1386c0a.zip gdb-db0dfaa0e65e6c455ad870dc4fb42192b1386c0a.tar.gz gdb-db0dfaa0e65e6c455ad870dc4fb42192b1386c0a.tar.bz2 | |
* linux-low.c: Move definition checks upwards for PT_TEXT_ADDR,
PT_DATA_ADDR and PT_TEXT_END_ADDR. Update comments.
(linux_read_offsets): Remove PT_TEXT_ADDR, PT_DATA_ADDR and
PT_TEXT_END_ADDR guards. Update comments.
(linux_target_op) <read_offsets>: Conditionally define to
linux_read_offsets if the target is UCLIBC and if it defines
PT_TEXT_ADDR, PT_DATA_ADDR and PT_TEXT_END_ADDR.
Diffstat (limited to 'gdb/gdbserver/linux-low.c')
| -rw-r--r-- | gdb/gdbserver/linux-low.c | 57 |
1 files changed, 35 insertions, 22 deletions
diff --git a/gdb/gdbserver/linux-low.c b/gdb/gdbserver/linux-low.c index 72c51e0..b01b37c 100644 --- a/gdb/gdbserver/linux-low.c +++ b/gdb/gdbserver/linux-low.c @@ -84,6 +84,30 @@ #endif #endif +/* Some targets did not define these ptrace constants from the start, + so gdbserver defines them locally here. In the future, these may + be removed after they are added to asm/ptrace.h. */ +#if !(defined(PT_TEXT_ADDR) \ + || defined(PT_DATA_ADDR) \ + || defined(PT_TEXT_END_ADDR)) +#if defined(__mcoldfire__) +/* These are still undefined in 3.10 kernels. */ +#define PT_TEXT_ADDR 49*4 +#define PT_DATA_ADDR 50*4 +#define PT_TEXT_END_ADDR 51*4 +/* BFIN already defines these since at least 2.6.32 kernels. */ +#elif defined(BFIN) +#define PT_TEXT_ADDR 220 +#define PT_TEXT_END_ADDR 224 +#define PT_DATA_ADDR 228 +/* These are still undefined in 3.10 kernels. */ +#elif defined(__TMS320C6X__) +#define PT_TEXT_ADDR (0x10000*4) +#define PT_DATA_ADDR (0x10004*4) +#define PT_TEXT_END_ADDR (0x10008*4) +#endif +#endif + #ifdef HAVE_LINUX_BTRACE # include "linux-btrace.h" #endif @@ -4833,25 +4857,14 @@ linux_stopped_data_address (void) return lwp->stopped_data_address; } -#if defined(__UCLIBC__) && defined(HAS_NOMMU) -#if ! (defined(PT_TEXT_ADDR) \ - || defined(PT_DATA_ADDR) \ - || defined(PT_TEXT_END_ADDR)) -#if defined(__mcoldfire__) -/* These should really be defined in the kernel's ptrace.h header. */ -#define PT_TEXT_ADDR 49*4 -#define PT_DATA_ADDR 50*4 -#define PT_TEXT_END_ADDR 51*4 -#elif defined(BFIN) -#define PT_TEXT_ADDR 220 -#define PT_TEXT_END_ADDR 224 -#define PT_DATA_ADDR 228 -#elif defined(__TMS320C6X__) -#define PT_TEXT_ADDR (0x10000*4) -#define PT_DATA_ADDR (0x10004*4) -#define PT_TEXT_END_ADDR (0x10008*4) -#endif -#endif +#if defined(__UCLIBC__) && defined(HAS_NOMMU) \ + && defined(PT_TEXT_ADDR) && defined(PT_DATA_ADDR) \ + && defined(PT_TEXT_END_ADDR) + +/* This is only used for targets that define PT_TEXT_ADDR, + PT_DATA_ADDR and PT_TEXT_END_ADDR. If those are not defined, supposedly + the target has different ways of acquiring this information, like + loadmaps. */ /* Under uClinux, programs are loaded at non-zero offsets, which we need to tell gdb about. */ @@ -4859,7 +4872,6 @@ linux_stopped_data_address (void) static int linux_read_offsets (CORE_ADDR *text_p, CORE_ADDR *data_p) { -#if defined(PT_TEXT_ADDR) && defined(PT_DATA_ADDR) && defined(PT_TEXT_END_ADDR) unsigned long text, text_end, data; int pid = lwpid_of (get_thread_lwp (current_inferior)); @@ -4888,7 +4900,6 @@ linux_read_offsets (CORE_ADDR *text_p, CORE_ADDR *data_p) return 1; } -#endif return 0; } #endif @@ -5887,7 +5898,9 @@ static struct target_ops linux_target_ops = { linux_remove_point, linux_stopped_by_watchpoint, linux_stopped_data_address, -#if defined(__UCLIBC__) && defined(HAS_NOMMU) +#if defined(__UCLIBC__) && defined(HAS_NOMMU) \ + && defined(PT_TEXT_ADDR) && defined(PT_DATA_ADDR) \ + && defined(PT_TEXT_END_ADDR) linux_read_offsets, #else NULL, |