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cpu/esp*: memory clobbers required for irq_* functions #11571

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cpu/esp*: memory clobbers required for irq_* functions#11571
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gschorcht
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Area: cpuArea: CPU/MCU portsPlatform: ESPPlatform: This PR/issue effects ESP-based platformsState: staleState: The issue / PR has no activity for >185 daysType: enhancementThe issue suggests enhanceable parts / The PR enhances parts of the codebase / documentation
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@gschorcht
gschorcht
opened on May 24, 2019

Description

Based on discussions in PR #11440 it became clear that it might be also necessary for ESP architecture to add memory barriers to __asm__ volatile statements in irq_* functions.

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Area: cpuArea: CPU/MCU portsPlatform: ESPPlatform: This PR/issue effects ESP-based platformsState: staleState: The issue / PR has no activity for >185 daysType: enhancementThe issue suggests enhanceable parts / The PR enhances parts of the codebase / documentation

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