Backtrace/register dump on BSD.

FreeBSD/DragonFlyBSD does have backtrace only it does not
belong to libc.
This commit is contained in:
David Carlier 2018-11-24 15:49:45 +00:00
parent 0c12ebf6e7
commit 69ca907868
3 changed files with 97 additions and 3 deletions

View File

@ -105,11 +105,11 @@ ifeq ($(uname_S),OpenBSD)
else
ifeq ($(uname_S),FreeBSD)
# FreeBSD
FINAL_LIBS+= -lpthread
FINAL_LIBS+= -lpthread -lexecinfo
else
ifeq ($(uname_S),DragonFly)
# FreeBSD
FINAL_LIBS+= -lpthread
FINAL_LIBS+= -lpthread -lexecinfo
else
# All the other OSes (notably Linux)
FINAL_LDFLAGS+= -rdynamic

View File

@ -62,7 +62,8 @@
#endif
/* Test for backtrace() */
#if defined(__APPLE__) || (defined(__linux__) && defined(__GLIBC__))
#if defined(__APPLE__) || (defined(__linux__) && defined(__GLIBC__)) || \
defined(__FreeBSD__) || defined(__DragonFly__)
#define HAVE_BACKTRACE 1
#endif

View File

@ -729,6 +729,15 @@ static void *getMcontextEip(ucontext_t *uc) {
#elif defined(__aarch64__) /* Linux AArch64 */
return (void*) uc->uc_mcontext.pc;
#endif
#elif defined(__FreeBSD__)
/* FreeBSD */
#if defined(__i386__)
return (void*) uc->uc_mcontext.mc_eip;
#elif defined(__x86_64__)
return (void*) uc->uc_mcontext.mc_rip;
#endif
#elif defined(__DragonFly__)
return (void*) uc->uc_mcontext.mc_rip;
#else
return NULL;
#endif
@ -870,6 +879,90 @@ void logRegisters(ucontext_t *uc) {
);
logStackContent((void**)uc->uc_mcontext.gregs[15]);
#endif
#elif defined(__FreeBSD__)
#if defined(__x86_64__)
serverLog(LL_WARNING,
"\n"
"RAX:%016lx RBX:%016lx\nRCX:%016lx RDX:%016lx\n"
"RDI:%016lx RSI:%016lx\nRBP:%016lx RSP:%016lx\n"
"R8 :%016lx R9 :%016lx\nR10:%016lx R11:%016lx\n"
"R12:%016lx R13:%016lx\nR14:%016lx R15:%016lx\n"
"RIP:%016lx EFL:%016lx\nCSGSFS:%016lx",
(unsigned long) uc->uc_mcontext.mc_rax,
(unsigned long) uc->uc_mcontext.mc_rbx,
(unsigned long) uc->uc_mcontext.mc_rcx,
(unsigned long) uc->uc_mcontext.mc_rdx,
(unsigned long) uc->uc_mcontext.mc_rdi,
(unsigned long) uc->uc_mcontext.mc_rsi,
(unsigned long) uc->uc_mcontext.mc_rbp,
(unsigned long) uc->uc_mcontext.mc_rsp,
(unsigned long) uc->uc_mcontext.mc_r8,
(unsigned long) uc->uc_mcontext.mc_r9,
(unsigned long) uc->uc_mcontext.mc_r10,
(unsigned long) uc->uc_mcontext.mc_r11,
(unsigned long) uc->uc_mcontext.mc_r12,
(unsigned long) uc->uc_mcontext.mc_r13,
(unsigned long) uc->uc_mcontext.mc_r14,
(unsigned long) uc->uc_mcontext.mc_r15,
(unsigned long) uc->uc_mcontext.mc_rip,
(unsigned long) uc->uc_mcontext.mc_rflags,
(unsigned long) uc->uc_mcontext.mc_cs
);
logStackContent((void**)uc->uc_mcontext.mc_rsp);
#elif defined(__i386__)
serverLog(LL_WARNING,
"\n"
"EAX:%08lx EBX:%08lx ECX:%08lx EDX:%08lx\n"
"EDI:%08lx ESI:%08lx EBP:%08lx ESP:%08lx\n"
"SS :%08lx EFL:%08lx EIP:%08lx CS:%08lx\n"
"DS :%08lx ES :%08lx FS :%08lx GS:%08lx",
(unsigned long) uc->uc_mcontext.mc_eax,
(unsigned long) uc->uc_mcontext.mc_ebx,
(unsigned long) uc->uc_mcontext.mc_ebx,
(unsigned long) uc->uc_mcontext.mc_edx,
(unsigned long) uc->uc_mcontext.mc_edi,
(unsigned long) uc->uc_mcontext.mc_esi,
(unsigned long) uc->uc_mcontext.mc_ebp,
(unsigned long) uc->uc_mcontext.mc_esp,
(unsigned long) uc->uc_mcontext.mc_ss,
(unsigned long) uc->uc_mcontext.mc_eflags,
(unsigned long) uc->uc_mcontext.mc_eip,
(unsigned long) uc->uc_mcontext.mc_cs,
(unsigned long) uc->uc_mcontext.mc_es,
(unsigned long) uc->uc_mcontext.mc_fs,
(unsigned long) uc->uc_mcontext.mc_gs
);
logStackContent((void**)uc->uc_mcontext.mc_esp);
#endif
#elif defined(__DragonFly__)
serverLog(LL_WARNING,
"\n"
"RAX:%016lx RBX:%016lx\nRCX:%016lx RDX:%016lx\n"
"RDI:%016lx RSI:%016lx\nRBP:%016lx RSP:%016lx\n"
"R8 :%016lx R9 :%016lx\nR10:%016lx R11:%016lx\n"
"R12:%016lx R13:%016lx\nR14:%016lx R15:%016lx\n"
"RIP:%016lx EFL:%016lx\nCSGSFS:%016lx",
(unsigned long) uc->uc_mcontext.mc_rax,
(unsigned long) uc->uc_mcontext.mc_rbx,
(unsigned long) uc->uc_mcontext.mc_rcx,
(unsigned long) uc->uc_mcontext.mc_rdx,
(unsigned long) uc->uc_mcontext.mc_rdi,
(unsigned long) uc->uc_mcontext.mc_rsi,
(unsigned long) uc->uc_mcontext.mc_rbp,
(unsigned long) uc->uc_mcontext.mc_rsp,
(unsigned long) uc->uc_mcontext.mc_r8,
(unsigned long) uc->uc_mcontext.mc_r9,
(unsigned long) uc->uc_mcontext.mc_r10,
(unsigned long) uc->uc_mcontext.mc_r11,
(unsigned long) uc->uc_mcontext.mc_r12,
(unsigned long) uc->uc_mcontext.mc_r13,
(unsigned long) uc->uc_mcontext.mc_r14,
(unsigned long) uc->uc_mcontext.mc_r15,
(unsigned long) uc->uc_mcontext.mc_rip,
(unsigned long) uc->uc_mcontext.mc_rflags,
(unsigned long) uc->uc_mcontext.mc_cs
);
logStackContent((void**)uc->uc_mcontext.mc_rsp);
#else
serverLog(LL_WARNING,
" Dumping of registers not supported for this OS/arch");