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| author | Mark Wielaard <mjw@redhat.com> | 2009-07-10 13:53:00 +0200 |
|---|---|---|
| committer | Mark Wielaard <mjw@redhat.com> | 2009-07-10 13:53:00 +0200 |
| commit | 880fc23fa180ae9c9557e7ff945f5f1e750aef15 (patch) | |
| tree | d2867d966e8295ed8abf9d5f2de799f2c0fed0fa | |
| parent | 2203b03262e340b25fc26996cc2786c1c02041e3 (diff) | |
| download | systemtap-steved-880fc23fa180ae9c9557e7ff945f5f1e750aef15.tar.gz systemtap-steved-880fc23fa180ae9c9557e7ff945f5f1e750aef15.tar.xz systemtap-steved-880fc23fa180ae9c9557e7ff945f5f1e750aef15.zip | |
PR10381 sdt.h macros create relocatable addresses in non-writable section.
Allocated section needs to be writable when creating pic shared objects
because we store relocatable addresses in them.
* includes/sys/sdt.h (ALLOCSEC): New macro, depends on __PIC__.
(STAP_PROBE_DATA_): Use new ALLOCSEC macro.
| -rw-r--r-- | includes/sys/sdt.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/includes/sys/sdt.h b/includes/sys/sdt.h index e448c90e..3b788b88 100644 --- a/includes/sys/sdt.h +++ b/includes/sys/sdt.h @@ -17,9 +17,17 @@ #define STAP_PROBE_ADDR "\t.long " #endif +/* Allocated section needs to be writable when creating pic shared objects + because we store relocatable addresses in them. */ +#ifdef __PIC__ +#define ALLOCSEC "\"aw\"" +#else +#define ALLOCSEC "\"a\"" +#endif + /* An allocated section .probes that holds the probe names and addrs. */ #define STAP_PROBE_DATA_(probe,guard,arg) \ - __asm__ volatile (".section .probes, \"a\"\n" \ + __asm__ volatile (".section .probes," ALLOCSEC "\n" \ "\t.align 8\n" \ "1:\n\t.asciz " #probe "\n" \ "\t.align 4\n" \ |