diff options
Diffstat (limited to 'lib/darwin/inject-asm-raw.c')
| -rw-r--r-- | lib/darwin/inject-asm-raw.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/lib/darwin/inject-asm-raw.c b/lib/darwin/inject-asm-raw.c index bb92828..0519dc6 100644 --- a/lib/darwin/inject-asm-raw.c +++ b/lib/darwin/inject-asm-raw.c @@ -9,14 +9,16 @@ __attribute__((always_inline)) #if defined(__x86_64__) -static int syscall(long s, long a, long b, long c, long d, long _) { +static int syscall(long s, long a, long b, long c, long d, long e) { if (s < 0) s = -s | 1 << 24; else s |= 2 << 24; REG(s, rax); REG(a, rdi); REG(b, rsi); REG(c, rdx); REG(d, rcx); OREG(out, rax); - asm volatile("syscall" : "=r"(out) : "r"(_s), "r"(_a), "r"(_b), "r"(_c), "r"(_d)); + asm volatile("push %1; syscall; pop %1" + : "=r"(out) + : "r"(e), "r"(_s), "r"(_a), "r"(_b), "r"(_c), "r"(_d)); return out; } #elif defined(__i386__) @@ -36,17 +38,21 @@ static int syscall(long s, long a, long b, long c, long d, long e) { return out; } #elif defined(__arm__) -static int syscall(long s, long a, long b, long c, long d, long _) { +static int syscall(long s, long a, long b, long c, long d, long e) { REG(s, r12); REG(a, r0); REG(b, r1); REG(c, r2); REG(d, r3); OREG(out, r0); - asm volatile("svc #0x80" : "=r"(out) : "r"(_s), "r"(_a), "r"(_b), "r"(_c), "r"(_d)); + asm volatile("push {%1}; svc #0x80; pop {%1}" + : "=r"(out) + : "r"(e), "r"(_s), "r"(_a), "r"(_b), "r"(_c), "r"(_d)); return out; } #elif defined(__arm64__) -static int syscall(long s, long a, long b, long c, long d, long _) { +static int syscall(long s, long a, long b, long c, long d, long e) { REG(s, x16); REG(a, x0); REG(b, x1); REG(c, x2); REG(d, x3); OREG(out, x0); - asm volatile("svc #0x80" : "=r"(out) : "r"(_s), "r"(_a), "r"(_b), "r"(_c), "r"(_d)); + asm volatile("str %1, [sp, #-0x10]!\n svc #0x80\n ldr %1, [sp], #0x10" + : "=r"(out) + : "r"(e), "r"(_s), "r"(_a), "r"(_b), "r"(_c), "r"(_d)); return out; } #else |