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random: remove rand32_timestamp.c

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This is a copy of rand32_timer.c that uses
z_do_read_cpu_timestamp32() instead of k_cycle_get_32(),
with some logic to ensure different values when called in
rapid succession missing.

Like the other driver, its reported values are not random,
it's a testing generator only.

This appears to have no advantages over rand32_timer.c,
just remove it. In QEMU emulation, the reported TSC values
tend to have the lowest five bits zeroed.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
This commit is contained in:
Andrew Boie 2020-02-19 10:12:39 -08:00 • committed by Anas Nashif
commit 81cfb08f52
4 changed files with 0 additions and 82 deletions
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2
subsys/random/CMakeLists.txt
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@ -2,13 +2,11 @@
if (CONFIG_ENTROPY_DEVICE_RANDOM_GENERATOR OR
CONFIG_TIMER_RANDOM_GENERATOR OR
CONFIG_X86_TSC_RANDOM_GENERATOR OR
CONFIG_XOROSHIRO_RANDOM_GENERATOR)
zephyr_library()
endif()
zephyr_library_sources_ifdef(CONFIG_TIMER_RANDOM_GENERATOR rand32_timer.c)
zephyr_library_sources_ifdef(CONFIG_X86_TSC_RANDOM_GENERATOR rand32_timestamp.c)
zephyr_library_sources_ifdef(CONFIG_XOROSHIRO_RANDOM_GENERATOR rand32_xoroshiro128.c)
zephyr_library_sources_ifdef(CONFIG_CTR_DRBG_CSPRNG_GENERATOR rand32_ctr_drbg.c)