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| author | Elliott Hughes <enh@google.com> | 2014-03-03 23:45:26 +0000 |
|---|---|---|
| committer | Dmitry V. Levin <ldv@altlinux.org> | 2014-03-03 23:54:14 +0000 |
| commit | 7a28f7f128fcca6ef0010b98cb21adcf8c3b8ae1 (patch) | |
| tree | 2ce882a045c2f7a40a684f3162a0b620006a3212 | |
| parent | 54cabefc753cc72417bb610cb9f7873f4389e9f5 (diff) | |
| download | strace-7a28f7f128fcca6ef0010b98cb21adcf8c3b8ae1.tar.gz strace-7a28f7f128fcca6ef0010b98cb21adcf8c3b8ae1.tar.bz2 strace-7a28f7f128fcca6ef0010b98cb21adcf8c3b8ae1.tar.xz | |
aarch64: fix decoding of arm syscall numbers
If an aarch64 strace is tracing a process using the arm personality, it
also needs to call the shuffle_scno function for the ARM-specific
syscalls.
* syscall.c (shuffle_scno): Define on AARCH64.
(get_scno) [AARCH64]: Call shuffle_scno when the tracee is in 32-bit mode.
Signed-off-by: Elliott Hughes <enh@google.com>
| -rw-r--r-- | syscall.c | 3 |
1 files changed, 2 insertions, 1 deletions
@@ -926,7 +926,7 @@ print_pc(struct tcb *tcp) /* Shuffle syscall numbers so that we don't have huge gaps in syscall table. * The shuffling should be reversible: shuffle_scno(shuffle_scno(n)) == n. */ -#if defined(ARM) /* So far only ARM needs this */ +#if defined(ARM) || defined(AARCH64) /* So far only 32-bit ARM needs this */ static long shuffle_scno(unsigned long scno) { @@ -1347,6 +1347,7 @@ get_scno(struct tcb *tcp) /* We are in 32-bit mode */ /* Note: we don't support OABI, unlike 32-bit ARM build */ scno = arm_regs.ARM_r7; + scno = shuffle_scno(scno); update_personality(tcp, 0); break; } |