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/linux-master/arch/arm/lib/
H A Dbacktrace-clang.S19 #define sv_lr r8 define
131 * sv_lr is the lr from the function that called the current function. This is
132 * a pointer to a code address in the current function's caller. sv_lr-4 is
135 * This sv_lr can be used to calculate the function start if the function was
145 1003: ldr sv_lr, [sv_fp, #4] @ get saved lr from next frame
147 1004: ldr r0, [sv_lr, #-4] @ get call instruction
165 * Print the function (sv_pc) and where it was called from (sv_lr).
169 mov r1, sv_lr

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