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2006-03-30 Daniel Jacobowitz <dan@codesourcery.com>

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* process.c (change_syscall): Add ARM support.
	* syscall.c (get_scno): Handle ARM EABI.
	Fixes Debian#360152.
This commit is contained in:
Roland McGrath 2006-04-25 07:34:41 +00:00
parent 9d19e163f0
commit f691bd2a4f
2 changed files with 28 additions and 9 deletions
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10
process.c
View File

@ -694,6 +694,16 @@ int new;
0x100000 | new) < 0)
return -1;
return 0;
#elif defined(ARM)
/* Some kernels support this, some (pre-2.6.16 or so) don't. */
# ifndef PTRACE_SET_SYSCALL
# define PTRACE_SET_SYSCALL 23
# endif
if (ptrace (PTRACE_SET_SYSCALL, tcp->pid, 0, new) != 0)
return -1;
return 0;
#else
#warning Do not know how to handle change_syscall for this architecture
#endif /* architecture */

27
syscall.c
View File

@ -1108,16 +1108,25 @@ struct tcb *tcp;
return 0;
}
if ((scno & 0x0ff00000) != 0x0f900000) {
fprintf(stderr, "syscall: unknown syscall trap 0x%08lx\n",
scno);
return -1;
}
/* Handle the EABI syscall convention. We do not
bother converting structures between the two
ABIs, but basic functionality should work even
if strace and the traced program have different
ABIs. */
if (scno == 0xef000000) {
scno = regs.ARM_r7;
} else {
if ((scno & 0x0ff00000) != 0x0f900000) {
fprintf(stderr, "syscall: unknown syscall trap 0x%08lx\n",
scno);
return -1;
}
/*
* Fixup the syscall number
*/
scno &= 0x000fffff;
/*
* Fixup the syscall number
*/
scno &= 0x000fffff;
}
}
if (tcp->flags & TCB_INSYSCALL) {