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| author | Sam James <sam@gentoo.org> | 2024-10-31 21:09:32 +0000 |
|---|---|---|
| committer | Sam James <sam@gentoo.org> | 2024-11-11 07:44:42 +0000 |
| commit | 00448f9b5a123b4b6b3e6f45d2fecf0a5dca66b3 (patch) | |
| tree | 5aecba9b3a2a102b199517e27549f5634202e27c /gcc | |
| parent | 8f791fac1419a5dc663abd5091cf4db409539b33 (diff) | |
| download | gcc-00448f9b5a123b4b6b3e6f45d2fecf0a5dca66b3.zip gcc-00448f9b5a123b4b6b3e6f45d2fecf0a5dca66b3.tar.gz gcc-00448f9b5a123b4b6b3e6f45d2fecf0a5dca66b3.tar.bz2 | |
doc: install: document UBSAN_OPTIONS
Explain that 'bootstrap-ubsan' won't abort on errors by default and how
to override that by setting UBSAN_OPTIONS.
gcc/ChangeLog:
PR other/116948
* doc/install.texi (Building a native compiler): Document UBSAN_OPTIONS.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/doc/install.texi | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/gcc/doc/install.texi b/gcc/doc/install.texi index d1fc722..705440f 100644 --- a/gcc/doc/install.texi +++ b/gcc/doc/install.texi @@ -3149,7 +3149,9 @@ systems that are running Linux kernel version 5.4 or later. @item @samp{bootstrap-ubsan} Compiles GCC itself using Undefined Behavior Sanitization in order to catch -undefined behavior within the GCC code. +undefined behavior within the GCC code. Note that it does not abort on errors +by default. @code{UBSAN_OPTIONS} can be set to change this, like +@samp{UBSAN_OPTIONS='abort_on_error=1:halt_on_error=1:print_summary=1:print_stacktrace=1'}. @end table |