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pstack
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Make struct used by PTRACE_GETREGS arch-dependant 

Structure used by ptrace in PTRACE_GETREGS mode is unfortunetely
arch-dependant. Although pt_regs seems portable, it's only designed to
represent the way registers are stored on the stack during system call.
The right struct to use is defined in sys/user.h and is
user_regs_struct on x86-{32,64} and user_regs on armel.
This commit is contained in:
Thomas Preud'homme 2011-10-05 17:25:41 +02:00
parent 1cede92011
commit a8f2e34c5f
1 changed files with 3 additions and 1 deletions
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4
pstack.c
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@ -114,12 +114,14 @@
#endif /* x86-{32,64} */
#define NEXT_FRAME_POINTER_ADDR(fp) (fp)
#define NEXT_PROGRAM_COUNTER_ADDR(fp) ((fp) + __SIZEOF_POINTER__)
#define DECLARE_REGS_STRUCT(regs) struct user_regs_struct regs
#elif defined(__ARMEL__) /* armel */
#define ELF_MACHINE EM_ARM
#define PROGRAM_COUNTER(regs) (regs.ARM_pc)
#define FRAME_POINTER(regs) (regs.ARM_fp)
#define NEXT_FRAME_POINTER_ADDR(fp) ((fp) - __SIZEOF_POINTER__)
#define NEXT_PROGRAM_COUNTER_ADDR(fp) (fp)
#define DECLARE_REGS_STRUCT(regs) struct user_regs regs
#elif defined(__ppc64__) || defined(__alpha__) || defined(__ia64__) || defined(s390x__)
#error Not (yet) supported architecture, patches welcomes :-)
#else
@ -643,7 +645,7 @@ static int crawl(int pid)
{
unsigned long pc, fp, nextfp, nargs, i, arg;
int ret, error_occured = 0;
struct pt_regs regs;
DECLARE_REGS_STRUCT(regs);
errno = 0;