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18 Commits (d592961b1a7a39c69c250c73e3240c60df9ebf24)

Author SHA1 Message Date
Ariadne Conill 09f78ddc28 alias __makecontext too 2021-01-08 10:37:27 +00:00
osy f7eed30132 build: guard _GNU_SOURCE define if build system defines it 2021-01-08 03:16:05 -07:00
osy d31c95a11a build: remove -DLIBUCONTEXT_ASSEMBLY 
Meson does not support separate defines for .S compile.
 2021-01-08 03:11:25 -07:00
osy 73d5e101ad build: respect EXPORT_UNPREFIXED for libucontext_makecontext 2021-01-08 03:02:43 -07:00
Ariadne Conill c10cde83da ppc: fix build with libucontext_ namespacing changes 2020-12-06 14:04:22 +00:00
Ariadne Conill c31decc3d4 build: use internal definitions to replace things pulled in from ucontext.h 2020-12-06 03:44:45 -06:00
Ariadne Conill 2f31efaa95 everywhere: rename __start_context to better descriptive libucontext_trampoline 2020-12-06 02:59:59 -06:00
Ariadne Conill c693dc663c rename __makecontext to libucontext_makecontext 2020-12-06 02:56:59 -06:00
Ariadne Conill b1ea2ae83b everywhere: use ucontext.h instead of signal.h for pulling in ucontext definitions 
This allows building libucontext against newlib.
 2020-12-04 11:19:02 -07:00
Ariadne Conill d31eaabbaf update copyright statements, add mailmap 2020-03-27 09:23:49 +00:00
Bobby Bingham 90ff6330e6 ppc32/64: update copyright 2019-04-05 14:18:20 -05:00
Bobby Bingham 29eac4259a ppc32/64: remove unused includes 2019-04-05 14:18:20 -05:00
Bobby Bingham 40d07758a5 ppc32/64: correct signature of function parameter to makecontext 
Because makecontext can pass a set of integer arguments to the provided
function, it is incorrect to require that this function accept no
parameters.
 2019-04-05 14:18:20 -05:00
Bobby Bingham 55168fcb18 ppc32/64: simplify storage of stack parameters 
The switch statement is simpler as an if/else, and removing the argp
variable makes the code more symmetric between the register and stack
parameter cases.
 2019-04-05 14:18:20 -05:00
Bobby Bingham b500b054c7 ppc32/64: don't store uc_link on the stack 
This was previously stored either in the CR (ppc64) or LR (ppc32) save
area of the stack, or to one of the parameter save slots.

In either case, the saved value was unused.  This value is also passed
to __start_context via r31, so there's no need to pass it on the stack.
 2019-04-05 14:15:49 -05:00
Bobby Bingham b9bd4045fb ppc32/64: fix back chain pointer 
The ABI states that sp[0] should point to the previous stack frame, or be
zero if there is no previous stack frame.  makecontext previously set this
slot to point to the __start_context function, rather than to a valid
stack frame.
 2019-04-05 14:15:49 -05:00
Bobby Bingham b6a9b5e279 ppc32: fix stack alignment 
The stack should be 16-byte aligned, not 8 mod 16.
 2019-04-05 14:15:44 -05:00
William Pitcock f3fe8ea781 arch: ppc: new port 2018-02-02 18:46:21 +00:00