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These patches allow picolibc to act as the system C library within gcc. Signed-off-by: Keith Packard <keithp@keithp.com>
39 lines
1019 B
Diff
39 lines
1019 B
Diff
From 41b20e994970f0ae63fb3f49c6f89a0b2f06aecb Mon Sep 17 00:00:00 2001
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From: Keith Packard <keithp@keithp.com>
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Date: Sun, 12 Feb 2023 14:23:32 -0800
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Subject: [PATCH 7/9] Support picolibc targets
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Match *-picolibc-* and select picolibc as the default C library, plus continuing to use
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the newlib-based logic for other configuration items.
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Signed-off-by: Keith Packard <keithp@keithp.com>
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---
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gcc/config.gcc | 11 +++++++++++
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1 file changed, 11 insertions(+)
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diff --git a/gcc/config.gcc b/gcc/config.gcc
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index e294ff8fbc8..06af4057079 100644
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--- a/gcc/config.gcc
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+++ b/gcc/config.gcc
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@@ -1082,6 +1082,17 @@ case ${target} in
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;;
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esac
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;;
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+*-picolibc-*)
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+ # __cxa_atexit is provided.
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+ default_use_cxa_atexit=yes
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+ use_gcc_stdint=wrap
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+ default_libc=LIBC_PICOLIBC
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+ case "${with_newlib}-${with_headers}" in
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+ no-no) use_gcc_stdint=provide ;;
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+ *) ;;
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+ esac
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+ ;;
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+
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*-*-elf|arc*-*-elf*)
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# Assume that newlib is being used and so __cxa_atexit is provided.
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default_use_cxa_atexit=yes
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--
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2.39.0
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