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Re: [PATCH v5 1/2] semihosting/arm-compat: replace heuristic for softmmu
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From: |
Peter Maydell |
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Subject: |
Re: [PATCH v5 1/2] semihosting/arm-compat: replace heuristic for softmmu SYS_HEAPINFO |
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Date: |
Sat, 12 Feb 2022 15:57:02 +0000 |
On Fri, 11 Feb 2022 at 16:18, Philippe Mathieu-Daudé <f4bug@amsat.org> wrote:
> For user-mode, this patch makes sense. For system-mode it is
> not obvious to make sense of SYS_HEAPINFO (except focusing in
> cores targeting embedded systems eventually).
The main user of semihosting in system mode is standalone
binaries compiled with the gnu toolchain using a newlib
that targets semihosting. These generally use SYS_HEAPINFO
on startup to find out where to put the stack etc, rather
than hardwiring it in the linker map. This applies to both
M-profile and A-profile.
-- PMM
Re: [PATCH v5 1/2] semihosting/arm-compat: replace heuristic for softmmu SYS_HEAPINFO, Peter Maydell, 2022/02/15