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tcg/i386: Use GDB JIT debugging interface only for hosts with ELF 

Not all i386 / x86_64 hosts use ELF.
Ask the compiler whether ELF is used.

On w64, gdb crashes when ELF_HOST_MACHINE is defined.

Cc: Blue Swirl <blauwirbel@gmail.com>
Acked-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Stefan Weil <sw@weilnetz.de>
This commit is contained in:
Stefan Weil 2012-04-06 08:06:41 +02:00
parent 4d0365165d
commit c170cb6649
1 changed files with 5 additions and 1 deletions
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6
tcg/i386/tcg-target.c
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@ -2102,7 +2102,9 @@ typedef struct {
DebugFrameFDE fde; DebugFrameFDE fde;
} DebugFrame; } DebugFrame;
#if TCG_TARGET_REG_BITS == 64 #if !defined(__ELF__)
/* Host machine without ELF. */
#elif TCG_TARGET_REG_BITS == 64
#define ELF_HOST_MACHINE EM_X86_64 #define ELF_HOST_MACHINE EM_X86_64
static DebugFrame debug_frame = { static DebugFrame debug_frame = {
.cie.len = sizeof(DebugFrameCIE)-4, /* length after .len member */ .cie.len = sizeof(DebugFrameCIE)-4, /* length after .len member */
@ -2156,6 +2158,7 @@ static DebugFrame debug_frame = {
}; };
#endif #endif
#if defined(ELF_HOST_MACHINE)
void tcg_register_jit(void *buf, size_t buf_size) void tcg_register_jit(void *buf, size_t buf_size)
{ {
/* We're expecting a 2 byte uleb128 encoded value. */ /* We're expecting a 2 byte uleb128 encoded value. */
@ -2166,3 +2169,4 @@ void tcg_register_jit(void *buf, size_t buf_size)
tcg_register_jit_int(buf, buf_size, &debug_frame, sizeof(debug_frame)); tcg_register_jit_int(buf, buf_size, &debug_frame, sizeof(debug_frame));
} }
#endif