Dmitry V. Levin
a0bd3749fc
Introduce SYS_FUNC macro to declare and define all syscall parsers. * Makefile.am (BUILT_SOURCES, CLEANFILES): Add sys_func.h. (sys_func.h): New rule. * defs.h (SYS_FUNC_NAME, SYS_FUNC): New macros. * linux/syscall.h: Include "sys_func.h". [NEED_UID16_PARSERS]: Use SYS_FUNC to declare uid16 syscall parsers. Remove other declarations. * linux/alpha/syscallent.h (160, 161): Add sys_ prefix to osf_statfs and osf_fstatfs syscall parsers. * *.c: Use SYS_FUNC to define syscall parsers.
53 lines
1.0 KiB
C
53 lines
1.0 KiB
C
#include "defs.h"
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#include "xlat/sigaltstack_flags.h"
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static void
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print_stack_t(struct tcb *tcp, unsigned long addr)
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{
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stack_t ss;
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int r;
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if (!addr) {
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tprints("NULL");
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return;
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}
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#if SUPPORTED_PERSONALITIES > 1 && SIZEOF_LONG > 4
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if (current_wordsize != sizeof(ss.ss_sp) && current_wordsize == 4) {
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struct {
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uint32_t ss_sp;
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int32_t ss_flags;
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uint32_t ss_size;
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} ss32;
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r = umove(tcp, addr, &ss32);
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if (r >= 0) {
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memset(&ss, 0, sizeof(ss));
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ss.ss_sp = (void*)(unsigned long) ss32.ss_sp;
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ss.ss_flags = ss32.ss_flags;
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ss.ss_size = (unsigned long) ss32.ss_size;
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}
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} else
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#endif
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{
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r = umove(tcp, addr, &ss);
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}
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if (r < 0) {
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tprintf("%#lx", addr);
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} else {
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tprintf("{ss_sp=%#lx, ss_flags=", (unsigned long) ss.ss_sp);
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printflags(sigaltstack_flags, ss.ss_flags, "SS_???");
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tprintf(", ss_size=%lu}", (unsigned long) ss.ss_size);
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}
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}
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SYS_FUNC(sigaltstack)
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{
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if (entering(tcp)) {
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print_stack_t(tcp, tcp->u_arg[0]);
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} else {
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tprints(", ");
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print_stack_t(tcp, tcp->u_arg[1]);
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}
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return 0;
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}
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