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2018 Mar 12
3
Cross-compiling for ARM Cortex-M3 on x86
...7, pc} But libc code is in ARM mode: 1563 000091d8 <*srand*>: 1564 91d8: e3a02000 mov r2, #0 1565 91dc: e59f300c ldr r3, [pc, #12] ; 91f0 <srand+0x18> 1566 91e0: e5933000 ldr r3, [r3] 1567 91e4: e58300a8 str r0, [r3, #168] ; 0xa8 1568 91e8: e58320ac str r2, [r3, #172] ; 0xac 1569 91ec: e12fff1e bx lr As you can see, the call to *srand* is just a *bl (Branch with Link)*, not a *blx (Branch with Link and Exchange instruction set)*, so I think something is going wrong here. Indeed, when using a binary analysis tool to simulate this...