5 commits

Author	SHA1	Message	Date
Jean-Baptiste Boric	295e89af04	LibC: Fix sigsetjmp on x86_64 ... Registers were clobbered, offset values into __jmp_buf were wrong...	2021-08-26 00:54:23 +02:00
Daniel Bertalan	bd6dc5ccec	Meta+LibC: Don't allow text relocations in SerenityOS libraries ... The `-z,text` linker flag causes the linker to reject shared libraries and PIE executables that have textrels. Our code mostly did not use these except in one place in LibC, which is changed in this commit. This makes GNU ld match LLD's behavior, which has this option enabled by default. TEXTRELs pose a security risk, as performing these relocations require executable pages to be written to by the dynamic linker. This can significantly weaken W^X hardening mitigations. Note that after this change, TEXTRELs can still be used in ports, as the dynamic loader code is not changed. There are also uses of it in the kernel, removing which are outside the scope of this PR. To allow those, `-z,notext` is added.	2021-08-18 18:01:22 +02:00
Jean-Baptiste Boric	c972afbea6	LibC: Fix sigsetjmp and siglongjmp	2021-08-18 10:33:48 +02:00
Brian Gianforcaro	1682f0b760	Everything: Move to SPDX license identifiers in all files. ... SPDX License Identifiers are a more compact / standardized way of representing file license information. See: https://spdx.dev/resources/use/#identifiers This was done with the `ambr` search and replace tool. ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *	2021-04-22 11:22:27 +02:00
Andreas Kling	8714f389f9	LibC: Add x86_64 implementation of setjmp() and longjmp()	2021-02-25 16:27:12 +01:00